CN204402641U - Automobile-used turbosupercharged engine assembly - Google Patents

Abstract

The utility model relates to a kind of automobile-used turbosupercharged engine assembly, and it comprises: turbo charging installation, and it comprises drive motor, turbo machine and exhaust gas bypass valve actuator; Intake and exhaust continuous variable valve timing system, on it cover cap comprising the camshaft being located at motor for detect camshaft location CMPS Camshaft Position Sensor and with the camshaft phase adjuster of one end and the hydraulic control valve of being located at described camshaft; Further, on described camshaft, installing is equipped with rolling bearing, in order to be carried the radial force under described intake and exhaust continuous variable valve timing system and the effect of valve spring power by described rolling bearing, to reduce frictional loss.The utility model compact overall structure, powerful, fuel consume are low, sufficient combustion and environmental pollution is little, are therefore particularly useful for small displacement vehicle.

Description

Automobile-used turbosupercharged engine assembly

Technical field

The utility model relates to technical field of engines, particularly relate to a kind of automobile-used turbosupercharged engine assembly, it is specially adapted to 1.3L discharge capacity and following boosting type is economical or entry level intermediate, or for the economy car of alternate application to 2.0L discharge capacity and following employing natural aspiration.

Background technique

According to the annual production and marketing information displaying that Chinese automobile association has issued, China surpasses after 1,500 ten thousand continue sales volume head in 2012, and within 2013, passenger car sales volume reaches 1792.89 ten thousand, increases by 15.7% on a year-on-year basis.Consider that the energy-conservation meaning for alleviating energy and environment pressure of passenger car is very great, therefore in this context, government department has put into effect automobile fuel ecomomy regulation and has taked the measures such as property tax excitation constantly to advance vehicle energy saving work.Wherein, phase III oil consumption limit value comes into effect on July 1st, 2012, requires automobile fuel consumption comparatively second stage decline 20%.Fourth stage (2016 ~ the year two thousand twenty) fuel economy regulation is also substantially clear and definite: the average fuel consumption target of enterprise will reach 5.0L/100 km to during the year two thousand twenty.

Therefore, although there are some boosting type motors of good performance in prior art, but consider that following vehicle is regenerated and meets the demand of above-mentioned fourth stage relevant laws and regulations, exploitation possesses high energy efficiency, low oil consumption and the strong small displacement engine of power performance just seems particularly important.Simultaneously, should consider the power of such small displacement engine and moment of torsion to be designed to surmount existing 2.0L motor, so that for upgrading products bring better Power output, and make its have the ability to expand to SUV or transboundary car etc. higher vehicle application is required for power performance.Therefore, be necessary to carry out Curve guide impeller for vehicular engine in all many-sides such as fuel consume, frictional power loss, cylinder charging efficiency, temperature control, vibratory impulses.

Model utility content

In view of this, the purpose of this utility model is to provide a kind of automobile-used turbosupercharged engine assembly, effectively to solve the above-mentioned problems in the prior art and otherwise problem.

In order to realize above-mentioned model utility object, the technical solution adopted in the utility model is as follows:

A kind of automobile-used turbosupercharged engine assembly, described automobile-used turbosupercharged engine assembly comprises:

Turbo charging installation, it comprises drive motor, turbo machine and exhaust gas bypass valve actuator, and be arranged to be connected with the gas exhaust manifold in the cylinder cap being integrated in motor, for strengthening the power performance of motor by reclaiming exhaust energy at least partially, wherein said exhaust gas bypass valve actuator is configured to be controlled by described drive motor and acts on described turbo machine, in order to described in regulating according to the different operating modes of motor at least partially waste gas by the flow of described turbo machine, thus control described at least partially waste gas enter the suction pressure of motor,

Intake and exhaust continuous variable valve timing system, for detecting the CMPS Camshaft Position Sensor of camshaft location on it cover cap comprising the camshaft being located at motor, and same camshaft phase adjuster and the hydraulic control valve being located at one end of described camshaft, control command is exported according to the testing signal of described CMPS Camshaft Position Sensor and the air flow sensor be located on vehicle and throttle position sensor in order to make the control unit be located on vehicle, so that described hydraulic control valve manipulates described camshaft phase adjuster according to described control command, thus shift to an earlier date according to the different operating modes of motor or postpone the unlatching of inlet and exhaust valve or close moment to improve the charging efficiency of cylinder, and

On described camshaft, installing is equipped with rolling bearing, in order to be carried the radial force under described intake and exhaust continuous variable valve timing system and the effect of valve spring power by described rolling bearing, to reduce frictional loss.

In above-mentioned automobile-used turbosupercharged engine assembly, alternatively, be provided with double mass flywheel and singly balanced axle in described automobile-used turbosupercharged engine assembly, and described singly balanced axle is configured to parallel with the bent axle of motor and equal with its rotating speed and turn to contrary.

In above-mentioned automobile-used turbosupercharged engine assembly, alternatively, described motor has:

Firing chamber, it is configured to roof shape and is provided with air inlet squish face, forms squish and turbulent motion in order to make the air-flow entering described firing chamber when motor moves to compression top center;

Air inlet system, it is arranged at the air inlet side of motor and is provided with diversion division, and described diversion division is configured to have curve form and reducing shape, forms tumble motion to make air-flow when entering described firing chamber; And

Intaker controller, it is arranged between described firing chamber and described air inlet system, and matches with described air inlet system and form guide face and enter described firing chamber to guide air-flow.

In above-mentioned automobile-used turbosupercharged engine assembly, alternatively, described air inlet system is configured to have bifurcation structure, and is provided with port fuel injection apparatus in described automobile-used turbosupercharged engine assembly, and it comprises:

Fuel dispensing tube, it is installed on the cylinder cap of motor, and each cylinder described cylinder cap corresponding to motor is provided with at least two intake ducts for delivery air and corresponding at least two intake valves;

Oil sprayer, it is connected with described fuel dispensing tube, and to be installed on each bifurcated in described bifurcation structure and to be positioned at intake duct near intake valve place corresponding thereto; And

Engine operating state sensor, it is arranged to rotating speed for detecting motor and load and sends it to engine controller, so that described engine controller controls the working state of described oil sprayer thus.

In above-mentioned automobile-used turbosupercharged engine assembly, alternatively, the load of motor comprises the first load area and the second load area, and the load that motor is in the second load area is greater than the load that it is in the first load area, wherein when motor is in the first load area, motor with idling or lower than 1200 revs/min rotating speed travel operating mode under, described engine controller controls is closed corresponding at least one oil sprayer of each cylinder; When motor is in the second load area, at motor with under idling or the operating mode that travels lower than the rotating speed of 2400 revs/min, described engine controller controls corresponds to whole oil sprayers of each cylinder and opens simultaneously, to the oil spout simultaneously of described intake duct.

In above-mentioned automobile-used turbosupercharged engine assembly, alternatively, the top of described firing chamber is provided with ignition mechanism, and described ignition mechanism is arranged to be biased relative to the exhaust side of longitudinal symmetry center alignment motor of described firing chamber.

In above-mentioned automobile-used turbosupercharged engine assembly, alternatively, displacement-variable oil pump is provided with in described automobile-used turbosupercharged engine assembly, it is disposed in the oil sump of motor and by the crankshaft sprocket of motor and drives, in order to regulate the engine oil pressure of lubrication system on vehicle according to the different operating modes of motor.

In above-mentioned automobile-used turbosupercharged engine assembly, alternatively, be provided with the mechanical vacuum pump with single blade in described automobile-used turbosupercharged engine assembly, it is configured to, by described camshaft actuated, provide vacuum braking power-assisted in order to vehicle.

In above-mentioned automobile-used turbosupercharged engine assembly, alternatively, described motor is provided with cross-flow head cooling jacket, it comprises the upper strata water jacket and lower floor's water jacket that are interconnected, after wherein engine coolant upwards flows into the air inlet side water jacket of cylinder cap from the air inlet side water jacket of cylinder body, be divided into via described upper strata water jacket and lower floor's water jacket respectively and upper and lowerly two-layerly all laterally flow to exhaust side, flow out after the water outlet finally above described gas exhaust manifold collects.

In above-mentioned automobile-used turbosupercharged engine assembly, alternatively, be provided with in described automobile-used turbosupercharged engine assembly separately for controlling the thermostat of the cylinder body water temperature of motor.

In automobile-used turbosupercharged engine assembly of the present utility model, it has carried out multiple innovative design on brand-new framework basis, such as comprise motor-driven exhaust-gas turbocharger, the timing of intake and exhaust continuous variable valve, single cylinder duel fuel injector, cylinder body and cylinder cap separated type cooling system, electromagnetic-valve control type two-stage variable displacement oil pump, low friction projection wheel shaft, independent ignition module, double mass flywheel and singly balanced axle construction etc., significantly can reduce the fuel consume of motor thus, reduce pumping loss during turbosupercharging, reduce the frictional loss between workpiece, improve the idle stability of motor, improve NVH performance and avoid motor to occur tendency to detonate under high load working condition, and particularly constructed by Optimizing Combustion room and adopt independently ignition module and Electronic Throttle Control, significantly can reduce oil consumption and improve the TRANSIENT DYNAMIC RESPONSE of motor.Show according to test, adopt automobile-used turbosupercharged engine assembly of the present utility model that sub load specific fuel consumption can be made to be less than 370g/kwh@2000rpm, 2bar, make engine speed can keep the high pulling torque output of smooth-going 220NM from 1700rpm to 4400rpm, thus not only meet the requirement of national every environmental protection and energy saving policy, and reach domestically leading world-class economical engine level.Therefore, automobile-used turbosupercharged engine assembly of the present utility model is particularly suitable for the application requirement meeting small displacement vehicle, such as apply it to 1.3L discharge capacity and following boosting type is economical or entry level intermediate, or be used for the economy car of alternate application to 2.0L discharge capacity and following employing natural aspiration.

Accompanying drawing explanation

Below with reference to drawings and Examples, the technical solution of the utility model is described in further detail, but it should be known that accompanying drawing only designs, therefore not as the restriction of the utility model scope for task of explanation.In addition, unless otherwise indicated, accompanying drawing is only be intended to conceptually represent the composition of described object or structure and may have carried out expansiveness display, and accompanying drawing also need not be drawn according to ratio.

Fig. 1 and Fig. 2 shows the stereochemical structure of an embodiment according to automobile-used turbosupercharged engine assembly of the present utility model on the whole from two different visual angles respectively.

Fig. 3 is the external characteristics performance map of the automobile-used turbosupercharged engine assembly embodiment shown in Fig. 1.

Fig. 4 is the three-dimensional structure diagram of the turbo charging installation in the automobile-used turbosupercharged engine assembly embodiment shown in Fig. 1.

Fig. 5 is the three-dimensional structure diagram of the intake and exhaust continuous variable valve timing system in the automobile-used turbosupercharged engine assembly embodiment shown in Fig. 1.

Fig. 6 is the three-dimensional structure diagram of the cross-flow type cylinder head cooling jacket in the automobile-used turbosupercharged engine assembly embodiment shown in Fig. 1.

Fig. 7 is the three-dimensional structure diagram of the engine cylinder-body in the automobile-used turbosupercharged engine assembly embodiment shown in Fig. 1.

Fig. 8 is integrated with the machine oil cooler of multiple interface and the three-dimensional structure diagram of water pump in the automobile-used turbosupercharged engine assembly embodiment shown in Fig. 1.

Fig. 9 is the three-dimensional structure diagram of the compact type intake manifold in the automobile-used turbosupercharged engine assembly embodiment shown in Fig. 1, is wherein integrated with numerous EMS systematic part.

Figure 10 is the three-dimensional structure diagram adopting the mechanical vacuum pump of single blade design in the automobile-used turbosupercharged engine assembly embodiment shown in Fig. 1.

Figure 11 is the three-dimensional structure diagram being integrated with the low friction projection wheel shaft of rolling bearing in the automobile-used turbosupercharged engine assembly embodiment shown in Fig. 1.

Figure 12 is the three-dimensional structure diagram of the duel fuel injector oil rail in the automobile-used turbosupercharged engine assembly embodiment shown in Fig. 1.

Figure 13 is the three-dimensional structure diagram of the petrol engine accessory belt drive belt system in the automobile-used turbosupercharged engine assembly embodiment shown in Fig. 1.

Figure 14 is the three-dimensional structure diagram of the displacement-variable oil pump in the automobile-used turbosupercharged engine assembly embodiment shown in Fig. 1.

Figure 15 is the three-dimensional structure diagram of the balance shaft system in the automobile-used turbosupercharged engine assembly embodiment shown in Fig. 1.

Figure 16 has the three-dimensional structure diagram that height rolls the efficient burning room of stream design in the automobile-used turbosupercharged engine assembly embodiment shown in Fig. 1.

Figure 17 is the three-dimensional structure diagram of the camshaft cover cap assembly in the automobile-used turbosupercharged engine assembly embodiment shown in Fig. 1.

Figure 18 is the three-dimensional structure diagram of the engine cylinder cover in the automobile-used turbosupercharged engine assembly embodiment shown in Fig. 1, be wherein integrated with gas exhaust manifold and chain-wheel box, and at each intake port layout two oil sprayers.

Figure 19 is the three-dimensional structure diagram being integrated with the engine front cover of Front oil seal in the automobile-used turbosupercharged engine assembly embodiment shown in Fig. 1.

Figure 20 is the three-dimensional structure diagram of the roller rocker arms hydraulic tappet valve train in the automobile-used turbosupercharged engine assembly embodiment shown in Fig. 1.

Figure 21 is the schematic configuration diagram of the low friction projection wheel shaft used in the utility model.

Figure 22 has the illustrative arrangement view that height rolls the efficient burning room of stream design in the utility model.

Figure 23 is the side view of the intake duct in Figure 22 example shown.

Figure 24 is the plan view of the intake duct in Figure 22 example shown.

Figure 25 is the worm's eye view of the firing chamber in Figure 22 example shown.

Figure 26 is the side view of the firing chamber in Figure 22 example shown.

Figure 27 is the side cross-sectional view of the firing chamber in Figure 22 example shown.

Figure 28 is the viewgraph of cross-section of the seat ring in Figure 22 example shown.

Figure 29 is the viewgraph of cross-section of the valve guide bushing in Figure 22 example shown.

Figure 30 is the viewgraph of cross-section of the intake valve in Figure 22 example shown.

Figure 31 is the partial enlarged view of the intake valve in Figure 30.

Figure 32 is the schematic diagram of the guide face structure in Figure 22 example shown.

Figure 33 is the partial enlarged view of the exhaust stator face structure in Figure 32.

Figure 34 is the structural representation of the fuel dispensing tube in the utility model.

Figure 35 is the structural representation after fuel dispensing tube in Figure 34 is installed to engine cylinder cover.

Figure 36 is the oil sprayer of port fuel injection apparatus in Figure 34 and the partial enlargement structural representation of intake duct.

Figure 37 is the structural representation of the cylinder head cooling jacket embodiment in the utility model.

Figure 38 is the structural representation of lower floor's water jacket of the cylinder head cooling jacket shown in Figure 37.

Figure 39 is the structural representation of the upper strata water jacket of the cylinder head cooling jacket shown in Figure 37.

Embodiment

First, it should be noted that, the composition structure of automobile-used turbosupercharged engine assembly of the present utility model, feature and advantage will be illustrated by way of example below, but all descriptions are only used to be described, and they should be interpreted as any restriction is formed to the utility model.In addition, also it must be noted that, for the such as turbo charging installation related to everywhere in this article, intake and exhaust continuous variable valve timing system, displacement-variable oil pump, cross-flow type cylinder head cooling jacket, the various device such as double mass flywheel and balance shaft system or constituent elements, and for their direct descriptions or by any single technical characteristics (any optional constituent element such as included by it implied, structure, connect arrangement etc.), or be shown or implicit any single technical characteristics in the drawings and in which, the utility model allows to carry out combination possible arbitrarily completely between these devices or constituent elements and their technical characteristics (or its equivalent), superpose or delete, thus obtain other embodiments of the present utility model more that may directly not mention in this article.

A stereochemical structure according to the embodiment of automobile-used turbosupercharged engine assembly of the present utility model is illustrated on the whole by Fig. 1 and Fig. 2, and the external characteristics performance map adopting this automobile-used turbosupercharged engine assembly embodiment has been shown in Fig. 3, wherein curve T and curve P is respectively its torsional performance curve and power performance curve, that show this this automobile-used turbosupercharged engine assembly and possesses very excellent strong impetus performance.

These constituent elements below mainly having indicated in this embodiment provided, they comprise motor-driven exhaust gas turbocharge device 1, intake and exhaust continuous variable valve timing system 2, cross-flow head cooling jacket 3, independent ignition mechanism 4, engine cylinder-body 5, machine oil cooler 6, stand alone type deaerator 7, electronic control throttle body 8, compact type intake manifold 9, mechanical vacuum pump 10, be integrated with the low friction projection wheel shaft 11 of rolling bearing, duel fuel injector oil rail 12, petrol engine accessory belt drive belt system 13, displacement-variable oil pump 14, two thermostat 15, double mass flywheel 16, balance shaft system 17 etc.It is pointed out that because the utility model relates to the Curve guide impeller of numerous novelty, therefore can carry out combination in any according to application needs to these constituent elements above-mentioned, thus form many possible technological schemes.

For example, motor-driven exhaust gas turbocharge device 1, intake and exhaust continuous variable valve timing system 2 can be selected in one example and be integrated with the low friction projection wheel shaft 11 of rolling bearing, the power performance of motor can be promoted better relative to prior art, combustion efficiency is provided, and improves frictional loss.Specifically, exhaust energy is at least partially reclaimed by arranging motor-driven exhaust gas turbocharge device 1, thus the power performance that can strengthen motor all can reach optimum performance to make it at high low speed, and be conducive to improving TRANSIENT DYNAMIC RESPONSE and improving sub load oil consumption.As shown in Figure 1 and Figure 4, motor-driven exhaust gas turbocharge device 1 is arranged to keep being communicated with the gas exhaust manifold be integrated in engine cylinder cover, it comprises drive motor, turbo machine and exhaust gas bypass valve actuator, wherein drive motor controls exhaust gas bypass valve actuator, the latter is acting on turbo machine, can regulate according to the different operating modes of motor and to reclaim the flow of waste gas by turbo machine, thus to control the suction pressure that these waste gas enter motor.Motor-driven exhaust gas turbocharge device 1, owing to can have employed compact type Integrated design, is therefore conducive to reducing of overall engine size.

With reference to figure 1 and Fig. 5, intake and exhaust continuous variable valve timing system 2 comprises CMPS Camshaft Position Sensor, camshaft phase adjuster and hydraulic control valve.Wherein, the cover cap that CMPS Camshaft Position Sensor is arranged on the camshaft of motor is used to detect camshaft location, camshaft phase adjuster and hydraulic control valve are co-located on one end of camshaft, control unit (the such as vehicle electronic control unit ECU on vehicle is made with this, mixed power control unit HCU etc.) control command can be exported according to the testing signal of the air flow sensor on above-mentioned CMPS Camshaft Position Sensor and vehicle and throttle position sensor, then above-mentioned hydraulic control valve is made to manipulate camshaft phase adjuster according to this control command, thus can shift to an earlier date according to the different operating modes of motor or postpone unlatching or the close moment of inlet and exhaust valve, improve the charging efficiency of cylinder thus.

Except the above enhancing for engine power performance and improving, reduce the frictional loss of engine valve actuating mechanism, thus the fuel consume reducing motor is also considerable.The example of the low friction projection wheel shaft being integrated with rolling bearing is given in Fig. 2 and Figure 11.Specifically, with prior art difference be, that rolling bearing is put in installing on camshaft in the utility model, and carry the radial force under intake and exhaust continuous variable valve timing system and the effect of valve spring power by such rolling bearing, can must reduce frictional loss by highly significant thus.More detailed description is carried out subsequently herein by this.

To be described one by one for aforesaid component devices or parts below, these devices or parts can be applied in automobile-used turbosupercharged engine assembly of the present utility model individually or in the mode of mutual combination in any.

As shown in Figure 6, the cross-flow head cooling jacket 3 with the upper and lower layer water jacket be connected can be set in automobile-used turbosupercharged engine assembly of the present utility model, so that after engine coolant upwards flows into the air inlet side water jacket of cylinder cap from the air inlet side water jacket of cylinder body, be divided into via upper and lower layer water jacket respectively and upper and lowerly two-layerly all laterally flow to exhaust side, finally flow out being positioned at after the water outlet above enmgine exhaust collects.Thus, engine cylinder cover inside can be made to have good coolant flow paths and flowing velocity, and realize the lower pressure loss, thus be conducive to the cooling promoting engine cylinder cover exhaust side ridge area and exhaust flange face.Subsequently, the example by Figure 37-39 is provided more specific description.

As shown in Figure 7, show the overall structure of the engine cylinder-body 5 in automobile-used turbosupercharged engine assembly embodiment in the figure, it can adopt cast aluminium to make, and can be integrated with chain-wheel box structure, thus engine weight can be alleviated, and reduce size of engine.

As shown in Figure 8, show the overall structure of the machine oil cooler 6 being integrated with multiple interface in automobile-used turbosupercharged engine assembly embodiment and water pump 21 in the figure, compact dimensions can be lost thus, and effectively can reduce oil temperature, prevent machine oil oxidation deterioration, thus contribute to improving engine life.

As shown in Figure 9, show the essential structure of the compact type intake manifold 9 in automobile-used turbosupercharged engine assembly embodiment in the figure, this compact type intake manifold 9 can adopt plastic or other material to make, and can integrated numerous EMS systematic part, effectively weight can be reduced by these optimal design, therefore be conducive to the fuel oil loss optimizing motor, reduce toxic emission.

As shown in Figure 10, show the unitary construction of the mechanical vacuum pump 10 in automobile-used turbosupercharged engine assembly embodiment in the figure, this mechanical vacuum pump 10 provides vacuum braking power-assisted for car load and adopts single blade design, to reduce frictional force, not only reliable and stable by camshaft actuated, and can be non-maintaining throughout one's life.

As shown in figure 12, show the unitary construction of the duel fuel injector oil rail 12 in automobile-used turbosupercharged engine assembly embodiment in the figure, adopt this duel fuel injector oil rail 12 to accelerate rate of burning, effectively improve combustion efficiency.

Again as shown in figure 13, show the petrol engine accessory belt drive belt system 13 in automobile-used turbosupercharged engine assembly embodiment in the figure, adopt it can reduce accessory belt design tension force, and reduce belt transmission skidding and noise.

Again as shown in figure 14, show the displacement-variable oil pump 14 in automobile-used turbosupercharged engine assembly embodiment in the figure, this displacement-variable oil pump 14 is driven by the crankshaft sprocket of motor, so that the different operating modes according to motor regulate lubrication system engine oil pressure, thus system friction merit can be reduced, effectively improve the fuel economy of complete machine.

Again as shown in figure 15, in automobile-used turbosupercharged engine assembly of the present utility model, double mass flywheel 16 and singly balanced axle system 17 can be set, singly balanced axle wherein can be arranged to parallel with the bent axle 24 of motor and equal with its rotating speed and turn to contrary, the first order reciprocating inertia force and the moment of inertia of the on-stream generation of balanced engine is come with this, thus the vibration produced in reduction engine operation, improve NVH performance.For starting and transmit the driving torque of motor on the side that a part in double mass flywheel 16 is arranged on motor, another part arranges the speed changer side of power train for improving the rotary inertia of speed changer, can ensure that motor can export high moment of torsion and high rotating speed thus, and effectively control and reduce system vibration.

Illustrate the high efficiency combustion room 18 in automobile-used turbosupercharged engine assembly embodiment of the present utility model in figure 16, wherein have employed height and roll stream design and effectively improve rate of burning, and reduce the tendency to detonate of overall engine.Subsequently, will come to be described in detail to this in conjunction with specific embodiments by Figure 22 to Figure 33.

Figure 17,18 and 19 shows the basic structure of camshaft cover cap 19, engine cylinder cover 20 and engine front cover 22 in automobile-used turbosupercharged engine assembly embodiment of the present utility model respectively.Wherein, camshaft cover cap 19 adopts high-strength structure to design, and can realize distortion little and rigidity is high, effectively effectively can improve the durability of motor.Engine cylinder cover 20 is integrated with gas exhaust manifold and chain-wheel box, and can at each intake port layout two or more oil sprayer so that improving combustion efficiency.Engine front cover 23 is integrated with Front oil seal, and can by the NVH performance adopting rough radiation tendon structural design to improve this region.

Again as shown in figure 20, show the overall structure of the roller rocker arms hydraulic tappet valve train 23 in automobile-used turbosupercharged engine assembly embodiment in the figure, by its can automatically valve gap adjustment and realize non-maintaining throughout one's life, and adopt roller rocker arms and cam contact effectively can reduce frictional work, thus be conducive to reducing complete-vehicle oil consumption further.

In addition, the cylinder body water temperature that an independent thermostat is used for controlling motor is also specially provided with in automobile-used turbosupercharged engine assembly of the present utility model, thus engine cylinder-body can be realized be rapidly heated and accelerate more accurately, more timely the controlling of warming-up process in engine warm-up process, frictional loss between effective reduction piston and cylinder barrel, thus contribute to improving fuel economy further.

Refer to Figure 21, exemplarily show the essential structure of an aforesaid low friction projection wheel shaft embodiment in the figure.As shown in figure 21, this low friction projection wheel shaft 1a has installed cam 2a, signal wheel 5a, rolling bearing 4a, and on this low friction projection wheel shaft 1a, be also provided with shaft shoulder 3a, conveniently to install rolling bearing 4a by shaft shoulder 3a, and be convenient to the axial position of positioning and rolling bearing 4a.The difference of said structure and prior art is, by camshaft within the engine employing the radial force that rolling bearing comes under bearing automobile timing system and the effect of valve spring power, cause also existing larger friction because above-mentioned radial force is usually very large, therefore in the utility model, the frictional loss of camshaft just significantly can be reduced by using rolling bearing instead, the demand for oil flow rate can be reduced thus, thus finally can reduce engine fuel consumption, also contribute to the working life extending related components simultaneously, improve Safety performance.

According to embody rule needs, one end that above-mentioned rolling bearing can be installed in low friction projection wheel shaft or any suitable location be installed on this low friction projection wheel shaft, to carry out the radial force under bearing automobile timing system and the effect of valve spring power by this rolling bearing, thus to reduce the frictional loss between them.

Under optional situation, interference fit can be adopted to be installed to by above-mentioned rolling bearing on low friction projection wheel shaft, certain the utility model also allows to adopt existing any suitable way the two to be assembled together, and also can dispense the shaft shoulder design in above-described embodiment when practical application.

As an example, above-mentioned rolling bearing can adopt ball bearing or needle bearing.Again for example, the low friction projection wheel shaft in the utility model can adopt founding type camshaft or assembled cam shaft.

Referring again to Figure 22, it be in the utility model adoptable one there is the engine structure exemplary plot that height rolls the firing chamber of properties of flow, this motor has firing chamber, air inlet system and Intaker controller.As shown in figure 22, in this example, air inlet system comprises intake duct 1b and seat ring 3b, and intake duct 1b is connected to firing chamber 2b by seat ring 3b.The right side of firing chamber 2b and left side are respectively air inlet side 21b and exhaust side 22b, and firing chamber 2 has top of combustion chamber 20b.Intake duct 1b is provided with joint 8b and fuel injector 4b.Valve guide bushing 6b is connected on joint 8b.One end of intake valve 5b extends outwardly from valve guide bushing 6b, and its other end extends through valve guide bushing 6b and joint 8b and forms 50b bottom flaring intake valve.Bottom intake valve, 50b coordinates with seat ring 3b between firing chamber 2b and seat ring 3b, with being communicated with of control combustion room 2b and seat ring 3b.Spark plug 7b is arranged in above the 2b of firing chamber, and 70b bottom spark plug is positioned within the 2b of firing chamber.

Figure 23 is the side view of the intake duct of the embodiment shown in Figure 22, and Figure 24 is the plan view of the intake duct of the embodiment shown in Figure 22.As shown in Figure 23, the side of charge air flow indicated by arrow A moves upward, and as shown in Figure 24, charge air flow is run respectively on the direction indicated by arrow B and arrow C.Intake duct 1b is connected with seat ring 3b by the inlet flange face 10b in its end, and inlet flange face 10b is arranged as and becomes certain inclination angle with cylinder-bore axis.Intake duct 1b has the raised structures 11b slightly caved in down.Raised structures 11b makes intake duct 1b have in its part near seat ring 3b first to increase a little and with the structure of aftershrinkage, to form reducing shape structure near the 10b of inlet flange face.

In embodiment shown in Figure 23, intake duct 1b has fuel injector 5b.And as shown in Figure 24, intake duct 1b has two bifurcation structures, and each bifurcation structure all has corresponding fuel injector, to add fuel respectively to the gas moved upward on the direction identified in arrow B with in the side that arrow C identifies.It is pointed out that and also allow to need above-mentioned induction part to be configured with plural bifurcation structure according to application.

Figure 25 to Figure 27 shows an embodiment of firing chamber of the present utility model, wherein, Figure 25 is the bottom view of the firing chamber of the embodiment shown in Figure 22, Figure 26 is the side view of the firing chamber of the embodiment shown in Figure 22, and Figure 27 is the side cross-sectional view of the firing chamber of the embodiment shown in Figure 22.In preferred embodiment shown in fig. 25, top of combustion chamber 20b to comprise bottom two intake valves arranging roughly symmetrically 90b bottom 50b and two exhaust valve.But those of skill in the art will understand, bottom the intake valve that also can comprise other numbers and bottom exhaust valve.Spark plug 7b is roughly connected on top of combustion chamber 20b at the peak place of the ridge-shaped of firing chamber 2b structure, makes 70b bottom spark plug roughly be positioned at the peak place of the ridge-shaped structure of firing chamber 2b.Bottom spark plug, 70b is positioned at the position of the approximate centre of top of combustion chamber 20b, and the right side of 50b is provided with air inlet squish face 21b bottom intake valve.As shown in Figure 27, top of combustion chamber 20b respectively towards surface thereof, makes firing chamber 2b form ridge-shaped structure in air inlet side 21b and exhaust side 22b.

Figure 28 is the viewgraph of cross-section of the seat ring of the embodiment shown in Figure 22, shows the hollow-core construction of seat ring 3b.The inside of seat ring 3b has leaning structure 31b, and the both sides of seat ring 3b are connected respectively on intake duct 1b and firing chamber 2b.Figure 29 is the viewgraph of cross-section of the valve guide bushing of the embodiment shown in Figure 22, shows the hollow-core construction of valve guide bushing 6b.When assembling completes, intake valve 5b is through valve guide bushing 6b.Valve guide bushing 6b plays leading role to intake valve 5b, and the heat in intake valve 5b is passed to cylinder head.

Figure 30 is the viewgraph of cross-section of the intake valve of the embodiment shown in Figure 22, and wherein, intake valve 5b comprises 50b bottom intake valve.As shown in figure 30, bottom intake valve, 50b forms the structure towards being recessed, and matches to construct with the ridge-shaped of top of combustion chamber 20b.Figure 31 is the partial enlarged view of the intake valve shown in Figure 30, show the part that the intake valve 5b in Figure 30 identifies with alphabetical D, wherein, bottom intake valve, 50b is with back side cone angle 51b, and bottom intake valve, 50b has the size adapted with the size of seat ring 3b.

Figure 32 is the schematic diagram of the exhaust stator face structure of embodiment shown in Figure 22.Wherein, bottom the intake valve of intake valve 5b 50b and exhaust valve 9b exhaust valve bottom 90b coordinate with the top 20b of firing chamber 2b respectively by a seat ring 3b.In the drawings, the part indicated by reference number E is air inlet guide face, and the part indicated by reference number F is exhaust stator face, and air inlet guide face has roughly the same structure with exhaust stator mask.

Figure 33 is the partial enlarged view of the guide face structure shown in Figure 32, specifically, bottom intake valve, the back side cone angle 51b of 50b and the leaning structure 31b of seat ring 3b is adaptive, to control being communicated with of intake duct 1b and firing chamber 2b, and intake duct 1 and firing chamber 2b is made to form closed combustion space.Bottom exhaust valve, 50b is raised to firing chamber 2b relative to the bottom margin of seat ring 3b, and the height of projection is identified by reference number i in fig. 33.Distance bottom exhaust valve between the side of 50b and the side of top of combustion chamber 20b is that s, s are water conservancy diversion gap.The half of length of the length referred to by reference number g for being indicated by reference number i, i.e. g=i/2, and the perpendicular distance from the lower surface of top of combustion chamber 20b to the mid point of exhaust valve base projections height i is called as water conservancy diversion height, in the illustrated embodiment in which, this water conservancy diversion height is identified by reference number h.

When air-flow is by intake duct 1b, the raised structures 11b slightly caved in down on the internal surface of intake duct 1b lower end makes air-flow first off-straight direction and moving slightly facing downward, subsequently, because intake duct 1b arrives the structure of the reducing before the 10b of inlet flange face, the moving direction of air-flow will become slightly towards surface thereof.In the preferred embodiment shown in the drawings, raised structures 11b for the formation of the air-flow slightly towards surface thereof, and forms the tumble motion of macroscopic view.But those of skill in the art will understand, other suitable structures also can be adopted to reach same technique effect.

When from intake duct 1b with slightly towards the air-flow of the moving direction of surface thereof by when bottom seat ring 3b and intake valve, 50b enters firing chamber, air-flow is formed and larger rolls stream under the leading role of the wall of the exhaust side 22b of firing chamber 2b, and due to design of the present utility model, the resistance suffered by gas can not increase too much.When piston goes upward to compression top center in the cylinder, gas forms squish, and this squeezes stream and will be converted into tubulence energy rapidly, is also converted to the turbulent motion of microcosmic by macroscopical tumble motion of gas.This not only lowers the requirement of mixed gas to ignition energy, and Flame front is increased, thus improve combustion stability and improve velocity of combustion.

In an alternate embodiment of the invention, bottom spark plug, 70b not medially arranges, but is biased about 1.5mm along longitudinal symmetry center alignment exhaust side 22b of firing chamber 2b.When such layout can to make bottom spark plug 70b produce flame, flame shortens to the propagation length of the unblended mixture body of high temperature, thus the generation of minimizing pinking.Those of skill in the art will understand, and bottom spark plug, 70b also can be biased according to different distances.

Please then consult Figure 34,35 and 36 in the lump, wherein illustrate schematically the general configuration of a port fuel injection apparatus embodiment that can adopt in the utility model, this port fuel injection apparatus comprises fuel dispensing tube, oil sprayer and engine operating state sensor.

Figure 34 illustrates the structural representation of fuel dispensing tube wherein.Usually, motor is made up of parts such as cylinder cap 2c, cylinder body and crankcases, wherein cylinder cap 2c is arranged on above cylinder body, forms some firing chambers from top seal cylinder body, and cylinder body comprises one or more cylinder as a whole, the concrete quantity of firing chamber is then corresponding with the quantity of cylinder.Visible further combined with Figure 35, in this example, the cylinder cap 2c of motor corresponding to each cylinder is provided with for carrying two of gas intake duct 3c and corresponding with intake duct 3c two intake valves, this intake duct 3c directly leads to above-mentioned firing chamber, for carrying air inlet, wherein, be provided with near the intake valve place corresponding with it oil sprayer 4c keeping with fuel dispensing tube 1c being communicated with at each intake duct 3c, make two oil sprayer 4c for single cylinder can spray c to two intake ducts 3 according to different operating modes individually or simultaneously when intake valve is opened and penetrate fuel oil.In alternative circumstances, oil sprayer 4c can be fixed on intake duct 3c by means of parts such as such as clip 5c, as shown in figure 36.In order to more clearly show the annexation of each component, do not draw engine operating state sensor and engine controller in the drawings, engine controller and engine operating state sensor are coupled with oil sprayer 4c and communicate, to control the working state of oil sprayer according to the feedback signal of engine operating state sensor, such as machine carries out opening or cutting out when appropriate.

Those of ordinary skill in the art can recognize, in order to improve rate of burning and burning quality further, oil sprayer 4c can be designed to be able to the oil mist particles of spraying the less SMD average diameter of particle (after the fuel-oil atmozation), the diameter range of the oil mist particles that such as this oil sprayer 4c sprays is between 30 to 100 microns.Can clearly see from Figure 36, each intake duct 3c is respectively arranged with oil sprayer 4c and the spray angle of oil sprayer is more easily controlled, and the gas being mixed with fuel oil can more fully promptly burn in cylinder.On the other hand, accurate spray angle can effectively avoid the mist of oil sprayed on the inwall of intake duct 3c, produce less desirable wet wall phenomenon.

In conjunction with above-described embodiment in other optional embodiment, by engine controller, the load of motor two regions are divided into: the first load area and the second load area, motor is greater than its load at the first load area at the load of the second load area, wherein when motor is in the first load area, motor with idling or lower than 1200 rpms rotating speed travel operating mode under, engine operating state sensor detects the rotating speed of motor under this operating mode and load, and the rotating speed of motor and load signal are sent to engine controller, engine controller controls corresponds to one or more oil sprayers closedowns of each cylinder subsequently, and another or other oil sprayer is opened, to save oil consumption.When motor is in the second load area, at motor with under idling or the operating mode (such as climb, start to walk, anxious acceleration etc.) that travels lower than the rotating speed of 2400 rpms, engine operating state sensor detects the rotating speed of motor under this operating mode and load, and the rotating speed of motor and load signal are sent to engine controller, engine controller controls is opened corresponding to whole oil sprayers of each cylinder simultaneously subsequently, to the oil spout simultaneously of each self-corresponding intake duct.In brief, carry out reasonable distribution design by multiple fuel injector flow size, adopt when idling and low speed scheme that the is single or injection of several oil sprayers to export to provide low engine speed moment of torsion, to meet the low-speed stability of motor.Under the operating modes such as the large load of low engine speed and full load, realize valve opening and spray and scavenging, and coordinate the raising of fuel feeding oil pressure, improve Engine torque further and export, and reduce engine knock tendency, reduce oil consumption and hydrocarbon emission.

In addition, as an example, in order to increase the structural strength of above-mentioned fuel dispensing tube 1c and clip 5c, and the working life of elongated component, this fuel dispensing tube 1c and clip 5c all can be made up of resistant materials such as such as stainless steels.

Please continue to refer to Figure 37,38 and 39, by these drawings show a kind of cross-flow head cooling jacket embodiment that can adopt in the utility model, it comprises upper strata water jacket 10d and lower floor water jacket 20d, is divided into upper and lower two-layer design.

Refer to shown in Figure 38, the lower floor water jacket 20d of this cross-flow head cooling jacket, it devises freight 22d on 6 in air inlet side.Every cylinder can be set to and arrange two, be separately positioned on intake duct both sides.And other water jacket pin are technique and fall husky pin, in the casting cycle of cylinder cap, play the effect that water jacket supports simultaneously.At the top of combustion chamber of every cylinder, around spark-plug hole, the average thickness of water jacket controls at about 7mm, and to guarantee in cylinder cap working procedure, chamber wall and spark plug hole wall are effectively cooled.

The ridge area 24d of the every cylinder exhaust side shown in Figure 38, in it, the flow velocity of cooling liquid is the important indicator weighing Cooling of Cylinder Head water jacket flow condition, should be designed under normal conditions be not less than 2m/s.Therefore, under the prerequisite meeting the husky core molding process requirement of water jacket and the wall thickness requirement of cylinder cap own, preferably can increase the sectional area in 24d region, ridge area, to impel more cooling liquid to flow to ridge area as far as possible.

Refer to shown in Figure 39, upper strata water jacket 10d is connected with lower floor water jacket 20d by supporting 12d.Upper strata water jacket 10d from air inlet side to exhaust side successively around spark-plug hole, valve guide bushing bottom outlet.Wherein water jacket 10d in upper strata is at the support 12d of exhaust flange face and water jacket 20d UNICOM of lower floor, and for the cooling liquid below exhaust flange face provides flow pass, the bolt hole simultaneously also ensuring exhaust flange face has good cooling, can not cause losing efficacy because of overheated.

The structural design of the husky core of above-mentioned cross-flow head cooling jacket has good core manufacturing craft, and in the process of water jacket coremaking, the die sinking respectively of upper and lower two-tiered water jacket, sand shot is shaping.In cylinder-cover blank casting cycle, float in order to avoid upper water is enclosed within aluminium liquid, the place specially combined at all upper and lower layers water jackets devises corresponding technique pressure head 14d.

The flow field of above-mentioned cross-flow head cooling jacket, streamline, ridge area speed, heat exchange and pressure distribution etc. have all carried out analytic demonstration by CFD, and this structural design is proved to be and can realizes very good technique effect in structure heat radiation etc.

In sum, owing to have employed many uniquenesses and novelty optimal design on the whole or on local respectively for above-mentioned numerous device or component, therefore, it is possible to highly significant, effectively realization reduce complete machine weight, promote engine power performance, reduce frictional work, improve oil consumption and reduce numerous targets such as pollutant emission.In view of automobile-used turbosupercharged engine assembly multiple combination mode can carry out flexible integrated these unique and novelty optimal design aforesaid, and its technical optimization effect is also proved and reaches domestically leading world-class level of engine performance, therefore be applicable to very much wideling popularize application automobile-used turbosupercharged engine assembly of the present utility model, such as apply it to 1.3L discharge capacity and following boosting type is economical or entry level intermediate, or for the economy car of alternate application to 2.0L discharge capacity and following employing natural aspiration, these technical advantages that the present invention possesses can be given full play of.

Below only come by way of example to illustrate automobile-used turbosupercharged engine assembly of the present utility model in detail, this a few example is only for principle of the present utility model and mode of execution thereof are described, but not to restriction of the present utility model, when not departing from spirit and scope of the present utility model, those skilled in the art can also make various distortion and improvement.Therefore, all equivalent technological schemes all should belong to category of the present utility model also by every claim of the present utility model is limited.

Claims (10)

1. an automobile-used turbosupercharged engine assembly, is characterized in that, described automobile-used turbosupercharged engine assembly comprises:

Turbo charging installation, it comprises drive motor, turbo machine and exhaust gas bypass valve actuator, and be arranged to be connected with the gas exhaust manifold in the cylinder cap being integrated in motor, for strengthening the power performance of motor by reclaiming exhaust energy at least partially, wherein said exhaust gas bypass valve actuator is configured to be controlled by described drive motor and acts on described turbo machine, in order to described in regulating according to the different operating modes of motor at least partially waste gas by the flow of described turbo machine, thus control described at least partially waste gas enter the suction pressure of motor,

Intake and exhaust continuous variable valve timing system, for detecting the CMPS Camshaft Position Sensor of camshaft location on it cover cap comprising the camshaft being located at motor, and same camshaft phase adjuster and the hydraulic control valve being located at one end of described camshaft, control command is exported according to the testing signal of described CMPS Camshaft Position Sensor and the air flow sensor be located on vehicle and throttle position sensor in order to make the control unit be located on vehicle, so that described hydraulic control valve manipulates described camshaft phase adjuster according to described control command, thus shift to an earlier date according to the different operating modes of motor or postpone the unlatching of inlet and exhaust valve or close moment to improve the charging efficiency of cylinder, and

On described camshaft, installing is equipped with rolling bearing, in order to be carried the radial force under described intake and exhaust continuous variable valve timing system and the effect of valve spring power by described rolling bearing, to reduce frictional loss.

2. automobile-used turbosupercharged engine assembly according to claim 1, it is characterized in that, be provided with double mass flywheel and singly balanced axle in described automobile-used turbosupercharged engine assembly, and described singly balanced axle is configured to parallel with the bent axle of motor and equal with its rotating speed and turn to contrary.

3. automobile-used turbosupercharged engine assembly according to claim 1, it is characterized in that, described motor has:

Firing chamber, it is configured to roof shape and is provided with air inlet squish face, forms squish and turbulent motion in order to make the air-flow entering described firing chamber when motor moves to compression top center;

Air inlet system, it is arranged at the air inlet side of motor and is provided with diversion division, and described diversion division is configured to have curve form and reducing shape, forms tumble motion to make air-flow when entering described firing chamber; And

Intaker controller, it is arranged between described firing chamber and described air inlet system, and matches with described air inlet system and form guide face and enter described firing chamber to guide air-flow.

4. automobile-used turbosupercharged engine assembly according to claim 3, it is characterized in that, described air inlet system is configured to have bifurcation structure, and is provided with port fuel injection apparatus in described automobile-used turbosupercharged engine assembly, and it comprises:

Fuel dispensing tube, it is installed on the cylinder cap of motor, and each cylinder described cylinder cap corresponding to motor is provided with at least two intake ducts for delivery air and corresponding at least two intake valves;

Oil sprayer, it is connected with described fuel dispensing tube, and to be installed on each bifurcated in described bifurcation structure and to be positioned at intake duct near intake valve place corresponding thereto; And

Engine operating state sensor, it is arranged to rotating speed for detecting motor and load and sends it to engine controller, so that described engine controller controls the working state of described oil sprayer thus.

5. automobile-used turbosupercharged engine assembly according to claim 4, it is characterized in that, the load of motor comprises the first load area and the second load area, and the load that motor is in the second load area is greater than the load that it is in the first load area, wherein when motor is in the first load area, motor with idling or lower than 1200 revs/min rotating speed travel operating mode under, described engine controller controls is closed corresponding at least one oil sprayer of each cylinder; When motor is in the second load area, at motor with under idling or the operating mode that travels lower than the rotating speed of 2400 revs/min, described engine controller controls corresponds to whole oil sprayers of each cylinder and opens simultaneously, to the oil spout simultaneously of described intake duct.

6. automobile-used turbosupercharged engine assembly according to claim 3, it is characterized in that, the top of described firing chamber is provided with ignition mechanism, and described ignition mechanism is arranged to be biased relative to the exhaust side of longitudinal symmetry center alignment motor of described firing chamber.

7. the automobile-used turbosupercharged engine assembly according to any one of claim 1-6, it is characterized in that, displacement-variable oil pump is provided with in described automobile-used turbosupercharged engine assembly, it is disposed in the oil sump of motor and by the crankshaft sprocket of motor and drives, in order to regulate the engine oil pressure of lubrication system on vehicle according to the different operating modes of motor.

8. the automobile-used turbosupercharged engine assembly according to any one of claim 1-6, it is characterized in that, be provided with the mechanical vacuum pump with single blade in described automobile-used turbosupercharged engine assembly, it is configured to, by described camshaft actuated, provide vacuum braking power-assisted in order to vehicle.

9. the automobile-used turbosupercharged engine assembly according to any one of claim 1-6, it is characterized in that, described motor is provided with cross-flow head cooling jacket, it comprises the upper strata water jacket and lower floor's water jacket that are interconnected, after wherein engine coolant upwards flows into the air inlet side water jacket of cylinder cap from the air inlet side water jacket of cylinder body, be divided into via described upper strata water jacket and lower floor's water jacket respectively and upper and lowerly two-layerly all laterally flow to exhaust side, finally flow out being positioned at after the water outlet above described gas exhaust manifold collects.

10. the automobile-used turbosupercharged engine assembly according to any one of claim 1-6, is characterized in that, is provided with separately for controlling the thermostat of the cylinder body water temperature of motor in described automobile-used turbosupercharged engine assembly.