CN114810361B - An electronic injection throttle body - Google Patents
An electronic injection throttle body Download PDFInfo
- Publication number
- CN114810361B CN114810361B CN202210464774.4A CN202210464774A CN114810361B CN 114810361 B CN114810361 B CN 114810361B CN 202210464774 A CN202210464774 A CN 202210464774A CN 114810361 B CN114810361 B CN 114810361B
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- Prior art keywords
- motor
- throttle
- sliding pin
- throttle shaft
- sliding
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
- F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
- F02D11/04—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by mechanical control linkages
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
- F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
- F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
- F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
- F02D9/1065—Mechanical control linkage between an actuator and the flap, e.g. including levers, gears, springs, clutches, limit stops of the like
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
- F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
- F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
- F02D2011/101—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type characterised by the means for actuating the throttles
- F02D2011/104—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type characterised by the means for actuating the throttles using electric step motors
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
本发明公开了一种电喷节气门体，包括本体（1），所述本体（1）下端设置有控制驱动机构（2），所述控制驱动机构（2）的输出端向上通过弹性销机构连接有节气门轴作动机构（3），所述节气门轴作动机构（3）位于本体（1）内，所述本体（1）外还设置有喷油器机构（4）；所述弹性销机构包括插设于电机（7）输出端上的悬架（8），所述悬架（8）内活动设置有滑动销座（9），所述滑动销座（9）的一侧具有向外凸出的滑动销（10），所述滑动销（10）上设置有弹性件，所述弹性件的外侧端与滑动销座（9）内侧壁相抵接，所述滑动销座（9）的另一对侧面与节气门轴作动机构（3）下侧端相适应。本发明具有消除延迟间隙的优点。
The present invention discloses an electronic fuel injection throttle body, comprising a body (1), a control drive mechanism (2) being arranged at the lower end of the body (1), an output end of the control drive mechanism (2) being connected to a throttle shaft actuating mechanism (3) upwardly through an elastic pin mechanism, the throttle shaft actuating mechanism (3) being located inside the body (1), and an injector mechanism (4) being arranged outside the body (1); the elastic pin mechanism comprising a suspension (8) inserted on the output end of a motor (7), a sliding pin seat (9) being movably arranged inside the suspension (8), a sliding pin (10) protruding outwardly being arranged on one side of the sliding pin seat (9), an elastic member being arranged on the sliding pin (10), the outer end of the elastic member being in contact with the inner side wall of the sliding pin seat (9), and the other pair of side surfaces of the sliding pin seat (9) being adapted to the lower side end of the throttle shaft actuating mechanism (3). The present invention has the advantage of eliminating the delay gap.
Description
Technical Field
The invention relates to the technical field of engines, in particular to an electronic injection throttle valve body.
Background
The electronic injection throttle body is an important component in an electronic fuel injection system of a gasoline engine and is arranged on an intake manifold of the engine. Its main function is to control various conditions of the engine by controlling the flow of air drawn into the engine. The electronic injection throttle body includes a throttle main passage and an idle air bypass passage that control an intake air amount. The idle air control valve is installed on the idle air bypass channel, and when the engine runs at idle speed and the throttle valve is in a completely closed state, the idle air control valve automatically adjusts the air flow sucked into the engine according to the instruction of the engine control unit. With the improvement of the requirements of energy conservation, emission reduction, economy, applicability, miniaturization, light weight, generalization and the like of the general engine at home and abroad, the adjusting mechanism in the existing electronic injection throttle valve body is positioned inside and cannot adapt to two speed regulation modes of mechanical type and electronic type at the same time, and a motor in the existing electronic injection throttle valve body can generate a rotation delay gap when driving a throttle shaft suspension to rotate through a rocker arm.
In patent CN202210043628.4, a throttle body for electronic injection is disclosed, comprising a body (1), a control system is arranged on the body (1), a motor (2) is fixed at the lower side end of the body (1), a throttle shaft actuating mechanism (3) is arranged between the output end of the motor (2) and the control system, the throttle shaft actuating mechanism (3) is positioned in the body (1), a fuel injector mechanism (4) is further arranged outside the body (1), the control system comprises a shell (7) fixed on the body (1), a PCB (8) is fixed in the shell (7), a bus slot (9), a temperature sensor (10), a pressure sensor (11), a throttle opening position sensor (12), a circuit socket and a processing chip are electrically connected on the PCB (8), and the throttle body has the advantages of higher universality and stronger applicability, but the problem of a rotation delay clearance cannot be solved.
In patent CN201710329934.3, an electronic injection throttle valve is disclosed, which comprises a body and a throttle shaft, an ECU board and a motor which are installed on the body, wherein the ECU board is arranged in a containing cavity of the body, an air inlet temperature sensor is installed at the air inlet end of a throat pipe of the body, the air inlet temperature sensor is connected with the ECU board, the throttle shaft passes through the throat pipe, a magnet rocker arm is arranged at the lower end of the throttle shaft, a hall sensor is arranged on the ECU board, a chip sensing center of the hall sensor and a magnet of the magnet rocker arm are coaxially arranged and have a gap, an annular groove is further arranged on the ECU board, a suspension is connected on the shaft of the motor, and the magnet rocker arm passes through the annular groove and is connected with the suspension, but the problem of rotation delay gap cannot be solved in the patent.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide an electronic injection throttle body so as to solve the defects.
The electric spray throttle body comprises a body, wherein a control driving mechanism is arranged at the lower end of the body, an output end of the control driving mechanism is upwards connected with a throttle shaft actuating mechanism through an elastic pin mechanism, the throttle shaft actuating mechanism is positioned in the body, an oil sprayer mechanism is further arranged outside the body, an adjusting mechanism is further connected to the upper side end of the throttle shaft actuating mechanism, the adjusting mechanism is positioned outside the upper end of the body, a connecting shell is arranged at the lower side of the body, a motor shell is arranged at the lower side of the connecting shell, the control driving mechanism comprises a control system arranged in the connecting shell and a driving assembly arranged in the motor shell, the driving assembly comprises a motor integrally arranged with the motor, the elastic pin mechanism comprises a suspension frame inserted on the output end of the motor, a sliding pin seat is movably arranged in the suspension frame, one side of the sliding pin seat is provided with a sliding pin protruding outwards, an elastic piece is arranged on the sliding pin, the inner side wall of the elastic piece abuts against the sliding pin seat, and the other side face of the sliding pin seat corresponds to the lower side face of the throttle shaft actuating mechanism.
Further, a fixed groove and a sliding groove are formed in the suspension, the fixed groove is clamped with the output end of the motor, the sliding pin seat is slidably arranged in the sliding groove, the outer side end of the elastic piece is abutted against the inner wall of the sliding groove, and the lower side end of the throttle shaft actuating mechanism is positioned in the sliding groove.
Further, the throttle shaft actuating mechanism comprises a rotary seat which is rotatably arranged at the lower side of the body, a downward extending deflector rod is fixed on the side circumferential surface of the rotary seat, the deflector rod extends into the sliding pin seat, a throttle shaft which extends upwards is fixed at the center of the rotary seat, a throttle plate is movably arranged at the middle part of the throttle shaft, a through hole is formed in the body, the throttle plate is positioned at the middle part of the through hole, and the throttle plate is used for controlling whether two ends of the through hole are communicated or not.
Further, the oil sprayer mechanism comprises an oil nozzle, a sealing ring, an electric control plug and a high-pressure fuel input quick-mounting connector, and is arranged on the outer side of the body.
Further, the upper end of the body is provided with an upward extending cylinder and a stop block, the throttle shaft extends out of the body through the cylinder, the adjusting mechanism comprises a limiting frame fixed at the upper end of the throttle shaft, a torsion spring is sleeved outside the cylinder, one end of the limiting frame is movably connected with the upper side end of the torsion spring, the stop block is rotatably connected with a stop post, and the other end of the limiting frame is movably abutted to the end face of the extending end of the stop post.
Further, the motor shell is internally provided with a motor groove which is sunken downwards, the motor groove is internally provided with a plurality of vertical ribs, the inner ends of the vertical ribs are propped against the outer wall of the motor, the motor groove is provided with two vertical screw sleeves, the motor is fixedly provided with a fixing plate through a bolt, and the extending ends of the bolt are screwed in the vertical screw sleeves.
Furthermore, the connecting shell and the motor shell are fixed through bolts and positioned through a plurality of first positioning pins, the connecting shell is provided with a second positioning pin extending upwards, the body is provided with a positioning hole, and the second positioning pin is matched with the positioning hole.
Further, the control system comprises a PCB board fixed between the connecting shell and the motor shell, and the PCB board is electrically connected with a bus slot, a temperature sensor, a pressure sensor, a throttle opening position sensor, a circuit socket and a processing chip.
Further, the outside of body has outwards convex boss, this internal T type pressure hole of getting that is provided with, the downside end of T type pressure hole is vertical to be extended to the bottom plate of body, one side of the upside end of T type pressure hole is got and is transversely extended to in the boss, and its opposite side extends to on the inner chamber wall of body.
Furthermore, a water accumulation groove is formed in the upper side of the connecting shell, and the lower side end of the T-shaped pressure taking hole corresponds to the water accumulation groove.
The electronic injection throttle body has the beneficial effects that 1, the integrated arrangement of the motor shell and the motor facilitates the restraint of slight rotation of the motor after the motor is installed in the motor shell and the restraint of the up-down movement of the motor;
2. The invention is arranged in the suspension through the opening type elastic support leg of the sliding pin seat, and the suspension is used for the initial position
The sliding groove in the arm is limited, so that an initial slot is formed for the entering of the deflector rod during blind installation; when the shifting lever is inserted into the suspension, the shifting lever pushes the sliding pin seat to be separated from the initial position, and when the motor rotates, the suspension is driven to rotate, at the moment, the reset spring on the sliding pin is compressed, and the spring force acts on the sliding pin seat and then acts on the shifting lever, so that the sliding pin seat is always clung to the shifting lever in the rotation process of the suspension, and further, the delay gap in the rotation process is eliminated;
3. the invention externally arranges the lower side of the T-shaped pressure taking hole, cuts and increases meat at the throat of the body to form a boss, and increases T-shaped pressure taking
Through the arrangement of the T-shaped pressure taking holes, condensed water formed by hot air after a cold machine is prevented from sliding into the pressure taking holes under the action of gravity, and further the pressure sensor is prevented from being damaged by flowing into the pressure sensor;
4. The invention is provided with a water accumulation tank at the position which is connected with the upper part of the shell and corresponds to the sensor, and less T-shaped pressure taking holes are arranged
The water in the water accumulation tank is pumped out by the negative pressure of the engine through the T-shaped pressure taking hole when the engine works, so that the pressure sensor is prevented from being damaged;
5. The invention arranges the adjusting mechanism outside the body, so that the electronic injection throttle valve body solves the problems of mechanical and electronic type
And cannot be shared.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention, FIG. 2 is a schematic diagram of the structure of the present invention;
FIG. 3 is a front view of the present invention;
FIG. 4 is a schematic view of the internal structure of the present invention;
FIG. 5 is a schematic structural view of the spring pin mechanism;
FIG. 6 is a schematic structural view of a suspension;
FIG. 7 is a schematic view of the structure of a sliding pin holder;
FIG. 8 is a schematic structural view of the body, connection housing and motor housing;
Fig. 9 is a cross-sectional view of the body.
In the figure, 1-body, 11-cylinder, 12-block, 13-torsion spring, 14-baffle column, 15-boss, 16-T type pressure taking hole, 2-control driving mechanism, 3-valve shaft actuating mechanism, 31-rotating seat, 32-deflector rod, 33-throttle shaft, 34-throttle plate, 4-oil injector mechanism, 5-connecting shell, 51-second locating pin, 52-PCB board, 53-bus slot, 54-water accumulation groove, 6-motor shell, 61-vertical rib, 62-screw sleeve, 63-fixed plate, 64-first locating pin, 7-motor, 8-suspension, 81-fixed groove, 82-sliding groove, 9-sliding pin seat, 91-elastic leg, 94-reset spring and 10-sliding pin.
Detailed Description
For a clearer understanding of technical features, objects, and effects of the present invention, a specific embodiment of the present invention will be described with reference to the accompanying drawings.
In this embodiment, as shown in fig. 1 to 9, an electronic injection throttle body comprises a body 1, wherein a control driving mechanism 2 is arranged at the lower end of the body 1, an output end of the control driving mechanism 2 is connected with a throttle shaft actuating mechanism 3 upwards through an elastic pin mechanism, the throttle shaft actuating mechanism 3 is positioned in the body 1, an oil sprayer mechanism 4 is further arranged outside the body 1, an adjusting mechanism is further connected to the upper side end of the throttle shaft actuating mechanism 3 and is positioned at the outer side of the upper end of the body 1, a connecting shell 5 is arranged at the lower side of the body 1, a motor shell 6 is arranged at the lower side of the connecting shell 5, the control driving mechanism 2 comprises a control system arranged in the connecting shell 5 and a driving assembly arranged in the motor shell 6, the driving assembly comprises a motor 7 integrally arranged with the motor shell 6, the elastic pin mechanism comprises a suspension 8 inserted in the output end of the motor 7, a sliding pin seat 9 is movably arranged in the suspension 8, one side of the sliding pin seat 9 is provided with a sliding pin 10 protruding outwards, the sliding pin 10 is arranged against the outer side of the sliding pin seat, and the sliding pin 10 is abutted against the other side face of the sliding pin seat 9, and the sliding pin seat is abutted against the other side face of the sliding pin 9.
In this embodiment, the sliding pin seat 9 is integrally formed as an integral structure, the upper end of the sliding pin seat 9 has two elastic legs 91 extending upward, each edge of the sliding pin seat 9 has an arc structure, and the elastic member is a return spring 94.
In this embodiment, the adjusting mechanism is arranged outside the body, so that the electronic injection throttle body can adapt to two speed regulation modes of mechanical and electronic modes at the same time, because the adjusting mechanism is arranged above, the control system is required to be arranged below or laterally, but laterally is limited by the installation space of the throttle body on the whole vehicle, so that the lower type throttle body is required to be adopted, and the motor 7 and the motor housing 6 are integrated, so that the problem of insufficient design area of the PCB is solved.
The embodiment is further configured in that a fixed slot 81 and a sliding slot 82 are formed in the suspension 8, the fixed slot 81 is clamped with the output end of the motor 7, the sliding pin seat 9 is slidably arranged in the sliding slot 82, the outer side end of the elastic piece is abutted against the inner wall of the sliding slot 82, and the lower side end of the throttle shaft actuating mechanism 3 is located in the sliding slot 82.
In this embodiment, the upper end of the inner sidewall of the sliding groove 82 in the length direction has an inwardly protruding strip, the outer end of the elastic leg 91 is provided with a sliding groove, the protruding strip is adapted to the sliding groove, the lower end of the sliding pin seat 9 further has two stop strips extending downward, and the stop strips and the bolts used for fixing the motor 7 form a rotation position limit of the suspension 8.
The embodiment is further configured that the throttle shaft actuating mechanism 3 comprises a rotary seat 31 rotatably arranged at the lower side of the body 1, a downward extending deflector rod 32 is fixed on the side circumferential surface of the rotary seat 31, the deflector rod 32 extends into the sliding pin seat 9, a throttle shaft 33 extending upwards is fixed at the center of the rotary seat 31, a throttle plate 34 is movably arranged in the middle of the throttle shaft 33, a through hole is formed in the body 1, the throttle plate 34 is positioned in the middle of the through hole, and the throttle plate 34 is used for controlling whether two ends of the through hole are communicated.
In the above embodiment, the sliding pin holder 9 is mounted in the suspension 8 through its own open elastic leg 91, and the initial position is limited by the chute in the cantilever, so as to form an initial slot for the entry of the driving lever 32 during blind assembly, and an arc surface is provided on the insertion side of the driving lever 32 of the sliding pin holder 9, so that the driving lever 32 can be smoothly inserted during blind assembly, when the driving lever 32 is inserted into the suspension 8, the driving lever 32 pushes the sliding pin holder 9 to be separated from the initial position, and when the motor 7 rotates, the suspension 8 is driven to rotate, at this time, the return spring 94 on the sliding pin 10 compresses, the spring force acts on the sliding pin holder 9 and then acts on the driving lever 32, so that the sliding pin holder 9 always clings to the driving lever 32 during rotation of the suspension 8, and further the delay gap during rotation is eliminated.
The embodiment is further arranged that the oil sprayer mechanism 4 comprises an oil sprayer, a sealing ring, an electric control plug and a high-pressure fuel input quick-mounting joint, and the oil sprayer mechanism 4 is arranged on the outer side of the body 1.
The embodiment is further characterized in that the upper end of the body 1 is provided with a cylinder 11 and a stop block 12 which extend upwards, the throttle shaft 33 extends out of the body through the cylinder 11, the adjusting mechanism comprises a limit frame 17 fixed at the upper end of the throttle shaft 33, a torsion spring 13 is sleeved outside the cylinder 11, one end of the limit frame 17 is movably connected with the upper side end of the torsion spring 13, the stop block 12 is rotatably connected with a baffle column 14, and the other end of the limit frame 17 is movably abutted with the end face of the extending end of the baffle column 14.
The embodiment is further provided that a motor groove which is concave downwards is formed in the motor shell 6, a plurality of vertical ribs 61 are arranged in the motor groove, the inner side ends of the vertical ribs 61 are abutted against the outer wall of the motor 7, the motor groove is provided with two vertical screw sleeves 62, a fixing plate 63 is fixed on the motor 7 through bolts, and the extending ends of the bolts are screwed in the vertical screw sleeves 62.
In this embodiment, 5 vertical ribs 61 are provided in the motor housing 6 to fix the motor 7, so as to restrict the motor 7 from slightly rotating after being mounted in the motor housing 6, and a vertical screw sleeve 62 is provided to mount the motor 7 in the motor housing 6 by a fixing plate 63, so as to restrict the motor 7 from moving up and down.
The embodiment is further configured in that the connection casing 5 and the motor casing 6 are fixed by bolts and positioned by a plurality of first positioning pins 64, the connection casing 5 is provided with a second positioning pin 51 extending upwards, the body 1 is provided with a positioning hole, and the second positioning pin 51 is adapted to the positioning hole.
In this embodiment, 4 first positioning pins 64 are disposed around the motor casing 6, and 4 positioning pin holes are disposed at corresponding positions of the connection casing 5, so as to be used for precisely positioning the motor 7 and the motor casing 6 as a whole and assembling and positioning the connection casing 5, and by setting the second positioning pins 51 and the positioning holes, the motor 7, the motor casing 6, the connection casing 5 and the body 1 are precisely positioned, so that a relatively precise positioning and assembling relationship is formed between the connection casing 5 and the body 1.
The embodiment is further configured in that the control system comprises a PCB board 52 fixed between the connection housing 5 and the motor housing 6, and the PCB board 52 is electrically connected with a bus slot 53, a temperature sensor, a pressure sensor, a throttle opening position sensor, a circuit socket and a processing chip.
In this embodiment, the electric signal processing units of the motor 7 and the oil sprayer mechanism are both disposed on the PCB 52, the motor casing 6 is further provided with a through hole, and the bus slot 53 corresponds to the through hole.
The embodiment is further configured in that a boss 15 protruding outwards is provided on the outer side of the body 1, a T-shaped pressure taking hole 16 is provided in the body 1, the lower side end of the T-shaped pressure taking hole 16 vertically extends to the bottom plate of the body 1, one side of the upper side end of the T-shaped pressure taking hole 16 transversely extends into the boss 15, and the other side of the upper side end of the T-shaped pressure taking hole extends to the inner cavity wall of the body 1.
In the scheme, as the control system is arranged downwards and the air inlet pressure sensor is arranged downwards, the pressure taking hole communicated with the sensor cannot be positioned at the upper end of the throat of the throttle valve body, the position of the pressure taking hole is set to be a technical difficulty, two factors are considered when the arrangement of the pressure taking hole is solved, firstly, the pressure taking hole is required to be positioned in the middle of the throat, the direction of the pressure taking hole cannot be upwards, so that condensed water formed by hot air after a refrigerator is prevented from sliding into the pressure taking hole under the action of gravity, and then the condensed water flows into the pressure sensor to damage the pressure sensor, and secondly, the throttle valve is generally used for a throttle valve body with small caliber and small discharge capacity. Based on the two points, namely, if the pressure taking hole directly passes through the throat from the sensor, the direction of the pressure taking hole is upward, and meanwhile, if a throttle body with smaller caliber is applicable, the pressure taking hole can not be communicated with the throat by directly passing through the pressure taking hole, so in the embodiment, the position of the lower side of the T-shaped pressure taking hole 16 is externally arranged, the throat of the body 1 is cut into a boss 15, the setting space of the T-shaped pressure taking hole 16 is increased, the T-shaped pressure taking hole is arranged to be in a T-shaped cross pressure taking hole design which passes through the throat in an upward and transverse mode, and condensed water formed by hot air after a cold machine is prevented from sliding into the pressure taking hole due to the action of gravity by virtue of the setting of the T-shaped pressure taking hole 16, so that the pressure sensor is prevented from being damaged by flowing into the pressure sensor.
The embodiment is further arranged that a water accumulation groove 54 is formed in the upper side of the connecting shell 5, and the lower side end of the T-shaped pressure taking hole 16 corresponds to the water accumulation groove 54.
In this embodiment, the lower position is to solve the waterproof problem caused by the lower position of the pressure sensor, besides adopting the design of the T-shaped cross pressure taking hole, the T-shaped pressure taking hole 16 is located in the middle-upper direction downwards to avoid the entry of water source, and the condensed water still has a small amount of condensed water in the T-shaped pressure taking hole 16, so that the small amount of condensed water entering the T-shaped pressure taking hole 16 has the risk of damaging the sensor, on this basis, the water accumulating tank 54 is arranged at the position which is connected with the upper part of the shell 5 and corresponds to the sensor, and a small amount of water is deposited in the water accumulating tank 54, and when the engine works, the water of the water accumulating tank 54 is pumped out by the negative pressure of the engine through the T-shaped pressure taking hole 16.
The invention adopts the working principle that when the engine works, the control system automatically processes the pressure transmission from the air inlet according to the change of the load of the engine
The signals of the sensor and the temperature sensor control the rotation angle of the motor 7, the opening degree of the throttle plate 34 is adjusted through the motor 7, the opening degree changing signal is transmitted to the control system through the opening degree position sensor, the fuel injection quantity of the fuel injector mechanism 4 is adjusted to adapt to the corresponding opening degree air inflow, the fuel supply economy is guaranteed, the motor 7 drives the throttle shaft 33 to rotate, the suspension 8 is driven to rotate, then the torsion spring 13 contacts the limit frame 17 to compress, and when the throttle shaft 33 rotates, the torsion spring 13 provides rotating force.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. An electronic injection throttle body, includes body (1), its characterized in that:
The air throttle shaft actuating mechanism (3) is positioned in the body (1), an oil sprayer mechanism (4) is further arranged outside the body (1), an adjusting mechanism is further connected to the upper side end of the air throttle shaft actuating mechanism (3), the adjusting mechanism is positioned on the outer side of the upper end of the body (1), a connecting shell (5) is arranged on the lower side of the body (1), a motor shell (6) is arranged on the lower side of the connecting shell (5), the control actuating mechanism (2) comprises a control system arranged in the connecting shell (5) and a driving assembly arranged in the motor shell (6), and the driving assembly comprises a motor (7) integrally arranged with the motor shell (6);
The elastic pin mechanism comprises a suspension (8) inserted on the output end of the motor (7), a sliding pin seat (9) is movably arranged in the suspension (8), a sliding pin (10) protruding outwards is arranged on one side of the sliding pin seat (9), an elastic piece is arranged on the sliding pin (10), the outer side end of the elastic piece is abutted against the inner side wall of the sliding pin seat (9), and the other pair of side surfaces of the sliding pin seat (9) are matched with the lower side end of the throttle shaft actuating mechanism (3);
The air throttle shaft actuating mechanism comprises a main body (1), wherein the main body is provided with a sliding pin seat (9), the upper side end of the sliding pin seat (9) is provided with two elastic supporting legs (91) extending upwards, the elastic piece is a return spring (94), the sliding pin seat (9) is arranged in a suspension frame (8) through the opening type elastic supporting legs (91), a fixing groove (81) and a sliding groove (82) are formed in the suspension frame (8), the fixing groove (81) is clamped with the output end of a motor (7), the sliding pin seat (9) is arranged in the sliding groove (82) in a sliding mode, the outer side end of the elastic piece is abutted against the inner wall of the sliding groove (82), the lower side end of the air throttle shaft actuating mechanism (3) is located in the sliding groove (82), the air throttle shaft actuating mechanism (3) comprises a rotating seat (31) which is rotatably arranged at the lower side of the main body (1), a poking rod (32) extending downwards is fixed on the lateral circumferential surface of the rotating seat (31), and the poking rod (32) extends into the sliding pin seat (9).
2. The electronic injection throttle body of claim 1, wherein a throttle shaft (33) extending upwards is fixed at the center of the rotating seat (31), a throttle plate (34) is movably arranged in the middle of the throttle shaft (33), a through hole is formed in the body (1), the throttle plate (34) is positioned in the middle of the through hole, and the throttle plate (34) is used for controlling whether two ends of the through hole are communicated.
3. An electronic injection throttle body as claimed in claim 1, wherein the injector mechanism (4) comprises an oil nozzle, a sealing ring, an electric control plug and a high-pressure fuel input quick-mounting joint, and the injector mechanism (4) is arranged outside the body (1).
4. The electronic injection throttle valve body according to claim 2, wherein the upper end of the body (1) is provided with a cylinder (11) and a stop block (12) which extend upwards, the throttle shaft (33) extends out of the body through the cylinder (11), the adjusting mechanism comprises a limit frame (17) fixed at the upper end of the throttle shaft (33), the cylinder (11) is sleeved with a torsion spring (13), one end of the limit frame (17) is movably connected with the upper side end of the torsion spring (13), the stop block (12) is rotatably connected with a baffle column (14), and the other end of the limit frame (17) is movably abutted with the end face of the extending end of the baffle column (14).
5. The electronic injection throttle valve body according to claim 1, wherein the motor casing (6) is internally provided with a motor groove which is sunken downwards, a plurality of vertical ribs (61) are arranged in the motor groove, the inner side ends of the vertical ribs (61) are abutted against the outer wall of the motor (7), the motor groove is provided with two vertical screw sleeves (62), the motor (7) is fixedly provided with a fixing plate (63) through bolts, and the extending ends of the bolts are screwed in the vertical screw sleeves (62).
6. The electronic injection throttle valve body according to claim 1, wherein the connecting shell (5) and the motor shell (6) are fixed through bolts and positioned through a plurality of first positioning pins (64), the connecting shell (5) is provided with a second positioning pin (51) extending upwards, the body (1) is provided with a positioning hole, and the second positioning pin (51) is matched with the positioning hole.
7. An electronic injection throttle body as set forth in claim 1 wherein said control system comprises a PCB (52) secured between the connection housing (5) and the motor housing (6), said PCB (52) being electrically connected to a bus slot (53), a temperature sensor, a pressure sensor, a throttle opening position sensor, a circuit socket, and a processing chip.
8. An electronic injection throttle body as set forth in claim 7, wherein the outer side of the body (1) is provided with an outwardly protruding boss (15), a T-shaped pressure taking hole (16) is arranged in the body (1), the lower side end of the T-shaped pressure taking hole (16) vertically extends to the bottom plate of the body (1), one side of the upper side end of the T-shaped pressure taking hole (16) transversely extends into the boss (15), and the other side of the upper side end of the T-shaped pressure taking hole extends to the inner cavity wall of the body (1).
9. The electronic injection throttle body of claim 8, wherein the upper side of the connecting shell (5) is provided with a water accumulation groove (54), and the lower side end of the T-shaped pressure taking hole (16) corresponds to the water accumulation groove (54).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210464774.4A CN114810361B (en) | 2022-04-29 | 2022-04-29 | An electronic injection throttle body |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210464774.4A CN114810361B (en) | 2022-04-29 | 2022-04-29 | An electronic injection throttle body |
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| CN114810361A CN114810361A (en) | 2022-07-29 |
| CN114810361B true CN114810361B (en) | 2025-03-18 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837563A (en) * | 2017-03-29 | 2017-06-13 | 韩群山 | A kind of stroke-increasing electric automobile electronic throttle of engine |
| CN107420205A (en) * | 2017-08-03 | 2017-12-01 | 福建福鼎京科化油器有限公司 | Electronic throttle and its method of work |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3404254B2 (en) * | 1997-05-07 | 2003-05-06 | 株式会社日立製作所 | Engine throttle device |
| JP3808821B2 (en) * | 2002-10-21 | 2006-08-16 | 株式会社日立製作所 | Engine throttle device |
| JP4502916B2 (en) * | 2005-09-29 | 2010-07-14 | 株式会社ケーヒン | Throttle valve control device |
| CN206016980U (en) * | 2016-09-05 | 2017-03-15 | 华益机电有限公司 | A kind of self adaptation electrospray throttle valve |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837563A (en) * | 2017-03-29 | 2017-06-13 | 韩群山 | A kind of stroke-increasing electric automobile electronic throttle of engine |
| CN107420205A (en) * | 2017-08-03 | 2017-12-01 | 福建福鼎京科化油器有限公司 | Electronic throttle and its method of work |
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