CN101789563B

CN101789563B - Flame-throwing nozzle of engine

Info

Publication number: CN101789563B
Application number: CN 201010300545
Authority: CN
Inventors: 申阳德
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-01-21
Filing date: 2010-01-21
Publication date: 2013-05-22
Anticipated expiration: 2030-01-21
Also published as: CN101789563A

Abstract

The invention discloses a flame-throwing nozzle of an engine, which comprises a housing, wherein a porcelain insulator is arranged in the housing, a double-headed screw stem with a wiring screw cap, a conductor glass sealant, a central electrode with one end extending out of the porcelain insulator and a flame-throwing cap which is welded with the end part of the central electrode are arranged in the porcelain insulator, the flame-throwing cap comprises a plane, the sharp edge of the plane forms a circle, the vertical distance between the plane and the end surface of the housing is greater than 8mm, an ignition gap formed by the flame-throwing cap and an engine cylinder cover is annular, and a heat capacity flame-throwing cavity is formed by the flame-throwing cap and the engine cylinder cover. The flame-throwing nozzle of the engine has the functions of electric spark ignition, flame throwing, heating for supporting combustion and the like and can realize the reliable, uniform and rapid completion of the whole combustion process. The flame-throwing nozzle of the engine can fundamentally eliminate the basic conditions of exhaust pollution of a vehicle, simultaneously greatly reduce the oil consumption, improve a variety of performances of the vehicle and prolong the service life of the engine.

Description

A kind of flame-throwing nozzle of engine

Technical field

The invention belongs to engine and make the field, relate in particular to a kind of manufacturing of combustion system of engine.

Background technology

Along with the extensive use of car engine electronic technology, electric spraying type engine, the cylinder inside direct jet type engine technology is in continuous development, and the general expression spark plug can only play ignition action, and ignition point is few, ignition area is little.

The existing spark plug course of work is that high-tension electricity is produced electric spark between spark plug or bocca both positive and negative polarity, electric spark hits combustion with gaseous mixture, hit the gaseous mixture flame of combustion and propagate to surrounding, the engine piston of having propagated 100 mm dias approximately needs 30 milliseconds of left and right.Piston is subjected to the extruding pushing piston of HTHP descending from top dead centre 0 degree, go downwards to about 4? degree left and right HTHP reduces suddenly, treat surplus materials not yet completing combustion just be forced to discharge the external exhaust emission that just become.As long as engine piston has some Mars in top dead centre 0 degree HTHP situation, just all HTHP gaseous mixtures can be lighted.But after having produced, electric spark can completing combustion just become the key problem on this engine performance; Igniting is caught fire to propagate into and is produced 30 milliseconds of this process need times of HTHP.And the speed of service of engine piston, is the engine acting from top dead centre 0 degree to descending 4? degree is the acting phase, the acting phase also only accounts for 0.004 millisecond of left and right, more 30 milliseconds of the times in the complete combustion chamber volume of flame propagation, the piston speed of service than flame propagation speed 29.996 milliseconds.The design igniting centrifugal avance angle of having to is spent greater than 12 degree and vacuum(-)controlled advance angle 12, the oxygen molecule of the larger consumption of advance angle is more, true famine oxygen molecule when piston will do work just to top dead centre, the remaining high temperature and high pressure carbon monoxide that can't catch fire only, hydrocarbon, although HTHP in acting, has been still feeble.Ignition advance angle is that 12 degree claim " invalid acting phase ", and the acting phase is that 4 degree claim " effectively doing work the phase " invalid acting phase to account for 3/4ths of effective acting phase.Mixing ratio besides; Mixing ratio refers to that air and fuel ratio are referred to as " air-fuel ratio ", the air-fuel ratio of engine use now is 14.7: 1, the air-fuel ratio that the past engine uses is 12: 1, optimum mixture ratio refers to best flame propagation velocity, initial burning speed is very fast, slowing down because of oxygen molecule minimizing flame combustion speed slowly, then piston makes fray-out of flame to the unexpected descending HTHP pressure decreased of after top dead center, and flame reaches a high temperature high pressure because the anoxic molecule extinguishes besides.No matter be the sort of reason fray-out of flame, it is to form carbon monoxide, the basic reason of hydrocarbon that HTHP reduces suddenly.In the angle of ignition 16 degree, 12 degree just being arranged is invalid acting phases, and the fuel combustion thermal expansion process is just spent being wasted in vain by 12.

Combustion chamber volume is the key position of engine, and combustion chamber volume is large is unfavorable for the optimization of environmental protection, energy consumption, power three norms.Combustion chamber volume is little easily brings out sudden and violent shake, and this is the major reason of restriction development of engine.

Ignition area is little, and burning rate is slow, within the invalid acting of the advanced ignition phase, waste a large amount of fuel, consumes a large amount of oxygen molecules.The oxygen molecule deficiency can make engine when acting gaseous mixture can't completing combustion, causes the serious pollutant sources of exhaust.

Summary of the invention

The objective of the invention is to disclose a kind of flame-throwing nozzle of engine, bocca of the present invention is to utilize the bocca burning area large, and speed is fast, cancels the igniting centrifugal avance angle, no longer designs the igniting centrifugal avance angle in ignition system, only establishes degree of advance.To reach the minimizing fuel consumption, avoid the oxygen consumed molecule, reduce the purpose of the pollution emission of engine.

The present invention is achieved through the following technical solutions:

Flame-throwing nozzle of engine, comprise shell, porcelain insulator is housed in shell, double threaded screw with wiring nut is arranged in porcelain insulator, conductor glass-sealing agent and an end stretch out the central electrode of porcelain insulator, and with the flame cap of central electrode end welding, wherein the flame cap has a plane, sharp-pointed edge, plane forms circle, and the vertical range of the end face of plane and shell is greater than 8 millimeters.

Bocca is arranged on cylinder and covers, and flame cap and engine cylinder cap form the long-pending flame of thermal capacitance chamber.The long-pending flame of thermal capacitance chamber is equipped with the spout of spray fuel.

The igniting gap that described flame cap and engine cylinder cap form is 360 degree of circular ring type.The gap length of circular ring type igniting gap is not more than 1 millimeter.

The flame cap is that a plane and sharp-pointed hemisphere, triangle or the trapezium structure of horizontal edge are arranged.

The metal shell that the structure of bocca of the present invention is made with metal material, the porcelain insulator that dedicated ceramic is made is housed in shell, double threaded screw with wiring nut is arranged in porcelain insulator, screw rod and central electrode are joined in the agent of conductor glass envelope, the central electrode other end welds mutually with the flame cap, the flame hat brim along and cylinder cap top circular arc between form the igniting gap.Form the long-pending flame of thermal capacitance chamber between cylinder inner bore and porcelain insulator, circular arc place, cylinder cap top is provided with the bocca that is not more than 1 millimeter 360 degree and jets out flames and be the umbrella burning of outside in reversing.

The igniting gap forms 360 degree large circle igniting gaps by flame cap sharp-pointed edge and inner hole of cylinder cover.To guarantee the not impact of the thermal resistance of oxidated thing of electric spark, the electric spark of accurate slip arcing.

Flame cap centre bore and central electrode end are welded to connect, the flame hat brim is along being not more than the distance of 1 millimeter with the shell top, and having certain altitude to be 25 degree electric spark oblique angles, flame cap lower edge forms wedge angle with upper edge, cylinder cap top and discharges, and guarantees that electric spark effectively can not catch fire.

Form the flame high temperature chamber of certain coefficient volume between the porcelain insulator of above-mentioned shell endoporus center, guarantee effective flame pressure.

The material that the present invention uses is the commercially available prod.

The present invention has following advantage:

(1) take down the igniting centrifugal avance angle, change ignition mode, eliminate shake cruelly, dwindle combustion chamber volume, improve power and reduce fuel consumption.

(2) gaseous mixture of lighting in large volume cylinder after the gaseous mixture in the long-pending flame of the thermal capacitance of little volume chamber catches fire makes ignited fuel more effective, exhaust emission and the waste of fuel of discharging when reducing startup and cold start-up.

(3) utilizing the large characteristics of the little pressure of chamber to improve the flame combustion efficiency, is the independent burning system of again conceiving in engine.

(4) do not rely on engine temperature to impel gaseous mixture combustion by evaporation process, eliminate the greenhouse gas emission that engine temperature causes.

(5) the circular ring type igniting gap that forms of flame cap and engine cylinder cap makes gaseous mixture in the long-pending flame of thermal capacitance chamber be umbrella under the high pressure that burns to spray in cylinder, greatly improved ignition efficient.Simultaneously circular ring type igniting gap makes also that igniting is more effective can not catch fire.

(6) flame cap and engine cylinder cap form circular ring type igniting gap, rather than the two poles of the earth of igniting are arranged on former bocca simultaneously, greatly extend the useful life of bocca.

To sum up, the present invention has spark ignition, flame, and the function such as heat combustion-supporting can realize reliably, evenly and promptly completes whole combustion processes.The present invention is the basic condition of fundamentally eliminating automobile gas emission pollution, simultaneously can the decrease oil consumption, and improve the various performances of automobile, and extend the useful life of engine.

Description of drawings

The present invention is further described below in conjunction with drawings and Examples.

Fig. 1 is the internal structure schematic diagram of bocca of the present invention;

Fig. 2 is the structural representation of bocca of the present invention;

Fig. 3 is bocca scheme of installation of the present invention;

Fig. 4 is the schematic diagram of igniting gap;

In figure 1, porcelain insulator, 2, with the double threaded screw of wiring nut, 3, shell, 4, conductor glass-sealing agent, 5, the long-pending flame of thermal capacitance chamber, 6, central electrode, 7, flame cap, 8, the igniting gap, 9, oil atomizer, 20, the plane of flame cap, 21, the end face of shell 3,22, engine cylinder cap, 31, engine cylinder cover sharp edges, 32, flame cap sharp edges.

Embodiment

In conjunction with Fig. 1, Fig. 2, in figure, bocca comprises shell 3, porcelain insulator 1 is housed in shell 3, double threaded screw 2 with wiring nut is arranged in porcelain insulator 1, conductor glass-sealing agent 4 and an end stretch out the central electrode 6 of porcelain insulator 1, with the flame cap 7 of central electrode 6 end welding, wherein flame cap 7 is dome-type structures, and the vertical range of the plane 20 of dome-type and the end face 21 of shell 3 is greater than 8 millimeters.Wherein central electrode 6 is to stretch out porcelain insulator 1 with flame cap 7 welding portions, and the other parts of central electrode 6 are wrapped up by porcelain insulator 1.Flame cap 7 can with the combination of dome-type shown in figure and a platform, also can be is a dome-type, can also be the shapes such as triangular form, as long as its flame cap of making has sharply, sharp edges 32 can form the annular gaps 8 of lighting a fire with cylinder head 22 sharp edges 31.The plane 20 of dome-type determines according to volume of cylinder with the vertical range of the end face 21 of shell 3, it partly determines the volume in the long-pending flame of thermal capacitance chamber, can form approximately the long-pending flame of 2 to 5 milliliters of thermal capacitances chamber greater than 8 millimeters, at present 100 millimeters of piston diameters use 10 millimeters of these vertical ranges better.

The bocca scheme of installation in conjunction with Fig. 3: Fig. 3.Can know in figure that to see flame cap 7 sharp edges 32 corresponding with cylinder head 22 sharp edges 31, and the igniting sharp edges 31 of cylinder head 22 is in 20 upper ends, plane of the dome-type of flame cap 7, there is an angle on the plane 20 that is the dome-type of the line of igniting sharp edges 31 and the igniting sharp edges 32 of flame cap 7 of cylinder head 22 and flame cap 7, this angle is that 20 degree are to 30 degree, this cylinder head 22 is outer in igniting gap 8 is to be diffusion type, and this is conducive to the flames that the long-pending flame of thermal capacitance chamber 5 sprays by igniting gap 8 and is umbrella.Fuel nozzle ports 9 in figure just can be found out the flame combustion system of the common composition of the critical piece centered by bocca by holding position from oil atomizer in the long-pending flame of thermal capacitance chamber.The design and installation of bocca centre is in the long-pending flame of thermal capacitance chamber in capacitor and be exposed to the space, the long-pending flame of whole thermal capacitance is drawn a large amount of heat energy in the chamber, many heat radiations of absorbing heat form high temperature red-hot district less, wait for oil atomizer ejection fuel oil, when " high warm chamber " that fuel oil spirt bocca center and cylinder cover form, fuel oil will heat up suddenly in red-hot district, and the fuel oil after intensification will become atomizing shape gas.Atomizing shape gas runs into the high-speed rotational air-flow that inlet valve is come in, airflow layer be mingled with atomizing shape gas at a high speed with descent of piston to lower dead center, have the airflow layer that will rotate to be compressed into lamina when piston stroking upward during near top dead centre.Between flame cap and cylinder cover that this moment, bocca central electrode Top held, the high-tension electricity of being sent here by high-tension line will produce high-voltage spark in the igniting gap, and electric spark is hitting the stratified mixtures of just at High Rotation Speed.Before catching fire, gaseous mixture is divided into two stages; 1, after oil atomizer sprays into the hot chamber of high temperature with fuel oil, siphon away most fuel oils by descent of piston, pushed the lamina air-flow that is rotating for the second time when staying the Fuel Remained wait piston stroking upward on high warm chamber inner wall.The lamina air-flow enters the gaseous mixture in high warm chamber, and programming rate is very fast under the high temperature of bocca center earthenware helps, and mixes mutually with the mixture temperature in cylinder.At this moment, the fuel gas in high warm chamber, it is the mixing ratio that the best is caught fire that the gaseous mixture in capacitor, secondary push the addition of lamina part, these gaseous mixtures have reached the high pressure-temperature critical temperature of catching fire.2, the air-flow in cylinder forms, and the critical temperature strand that the moving swirling eddy of descent of piston suction is being seized on both sides by the arms in high warm chamber mixes the lamina air-flow.Have when piston stroking upward to the pressurization of lamina air-flow, when being pressed onto piston top dead center, the lamina air-flow just is pressed into picture multi-layer steamed bread formula lamina airflow layer.The high-tension electricity that obtains transmitting in high-tension line when the bocca central electrode, on the top of bocca central electrode by the flame cap is housed, the flame hat brim is along exceeding the cylinder head edge, form and 360 degree garden weeks 25 spent place, oblique angle generation electric spark, electric spark is 12-14 than 1 high temperature rich mixture on one side, and another side is lamina 18-22 than 1 low temperature super-lean mixture, when the high temperature rich mixture runs into the rapid increasing temperature and pressure of electric spark, high warm cavity volume is 2 milliliters of left and right approximately, and volume is little on fire fast.Flame is directly sprayed into 1/4th one weeks of place of lamina air-flow cake, flame is divided into inside and outside both direction propagating burning, impel the gaseous mixture while ignition in same container, fire the power that the pressure of spending at top speed the full moment generation of fast burn burning-out is not less than compression ignition engine.This combustion process can be used in the technological transformation of vehicle in use engine, and emphasis still will use on new work engine is made.

Bocca of the present invention and cylinder head form the igniting flaming system, have changed the engine design theory, have improved the economy of engine, dynamic property, the feature of environmental protection.Flaming system is also that bocca fundamentally changes three norms.Bocca can fundamentally change the combustion mode of engine, does not rely on engine temperature and inlet temperature; The ignition temperature of gaseous mixture is that gaseous mixture is heated by the few characteristics of the many heat radiations of bocca central electrode heat absorption fully; Burning area is become 25 degree angles with cylinder head aperture pointed shape by flame cap inner plane wedge angle, will jet out flames changes over umbrella, and umbrella-shaped flame is penetrated outside in rolling up at 1/2nd places of piston radius and burnt, and invents out this combustion mode and can eliminate pinking.In the present invention, high warm cavity volume is approximately 2 milliliters, adds up to 5 milliliters with 3 milliliters of flame cap cavitys on every side.Mixed pressure is reduced in the little gathering burn chamber of 5 milliliters, its outburst ability is considerably beyond compression ignition engine.Its piston is stressed is center at piston, and piston can not be subjected to bias voltage to reach the frictional resistance that reduces piston and cylinder sleeve.Also can realize simultaneously cancelling the purpose of igniting centrifugal avance angle.No longer design the igniting centrifugal avance angle in ignition system, to reach the minimizing fuel consumption, avoid a large amount of oxygen consumed molecules, reduce the pollution emission of engine.

Claims

1. flame-throwing nozzle of engine, comprise shell (3), porcelain insulator (1) is housed in shell, double threaded screw (2) with wiring nut is arranged in porcelain insulator (1), conductor glass-sealing agent (4) and an end stretch out the central electrode (6) of porcelain insulator (1), flame cap (7) with central electrode (6) end welding, it is characterized in that: flame cap (7) has a plane (20), and the igniting gap (8) that the edge (32) that plane (20) are sharp-pointed and the edge (31) of engine cylinder cover (22) form is circular ring type; The vertical range of the end face (21) of the close flame cap of plane (20) and shell (3) is greater than 8 millimeters; Flame cap (7) plane (20), shell (3) amass flame chamber (5) near forming thermal capacitance between end face (21), porcelain insulator (1) and the engine cylinder cover (22) of flame cap.

2. flame-throwing nozzle of engine according to claim 1 is characterized in that: described thermal capacitance long-pending flame chamber (5) has a fuel nozzle ports (9) at least.

3. flame-throwing nozzle of engine according to claim 1 and 2 is characterized in that: described flame cap (7) is not more than 1 millimeter with the gap length of the circular ring type igniting gap (8) that engine cylinder cover (22) forms.

4. flame-throwing nozzle of engine according to claim 1 and 2, it is characterized in that: described flame cap (7) is that sharp-pointed hemisphere, triangle or the trapezium structure in a described plane (20) and edge, described plane (20) (32) arranged.