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CN101881199B - Decompression mechanism of air cylinder of motor vehicle - Google Patents

Decompression mechanism of air cylinder of motor vehicle Download PDF

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Publication number
CN101881199B
CN101881199B CN2009101361449A CN200910136144A CN101881199B CN 101881199 B CN101881199 B CN 101881199B CN 2009101361449 A CN2009101361449 A CN 2009101361449A CN 200910136144 A CN200910136144 A CN 200910136144A CN 101881199 B CN101881199 B CN 101881199B
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CN
China
Prior art keywords
decompression
switch
control circuit
normally
contact
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Expired - Fee Related
Application number
CN2009101361449A
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Chinese (zh)
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CN101881199A (en
Inventor
洪选民
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Bengbu Hongfu Automobile Technology Development Co Ltd
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Individual
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Priority to CN2009101361449A priority Critical patent/CN101881199B/en
Priority to PCT/CN2010/072426 priority patent/WO2010127611A1/en
Publication of CN101881199A publication Critical patent/CN101881199A/en
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Publication of CN101881199B publication Critical patent/CN101881199B/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L13/00Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/08Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for decompression, e.g. during starting; for changing compression ratio
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D13/00Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
    • F02D13/08Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing for rendering engine inoperative or idling
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D41/00Electrical control of supply of combustible mixture or its constituents
    • F02D41/02Circuit arrangements for generating control signals
    • F02D41/04Introducing corrections for particular operating conditions
    • F02D41/12Introducing corrections for particular operating conditions for deceleration
    • F02D41/123Introducing corrections for particular operating conditions for deceleration the fuel injection being cut-off
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2201/00Electronic control systems; Apparatus or methods therefor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2820/00Details on specific features characterising valve gear arrangements
    • F01L2820/03Auxiliary actuators
    • F01L2820/031Electromagnets
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Improving ICE efficiencies

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

The invention relates to a decompression mechanism of an air cylinder of a motor vehicle, which comprises a decompression shaft, a decompression arm and a power supply, wherein the decompression arm is connected with the decompression shaft; the power supply is connected with the decompression arm by a decompression control circuit and a decompression electromagnetic valve; the decompression control circuit comprises an accelerator pedal control circuit and a normally closed switch connected with a brake pedal; and one end of the normally closed switch is electrically connected with the power supply, and the other end of the normally closed switch is connected with the decompression electromagnetic valve by the accelerator pedal control circuit. The invention makes full use of the decompression mechanism of the air cylinder, the decompression mechanism is opened under a specific condition, and an engine is compelled to stop working; and under the conditions of fuel cut-off and flameout, the inertia of an automobile during running is utilized to push the engine to idle. When the normal working is required, the decompression mechanism is restored to a non-decompression state. Meanwhile, the normal working of a supply system is restored, and the normal working of the engine can also be restored under the push of inertia force. The operation is repeated in such a way, thereby achieving the aims of being safe and fuel saving.

Description

A kind of decompression mechanism of air cylinder of Motor Vehicle
Technical field
The present invention relates to a kind of mechanism of decompressor, particularly relate to a kind of decompression mechanism of air cylinder of Motor Vehicle.
Background technique
Early stage both at home and abroad diesel engine major part of producing all is vortex type or pre-burning cell-type, and the NO content when its advantage is work in low, the exhaust of noise is low, but its maximum shortcoming is difficult to start when to be temperature low especially.To this shortcoming, the rotating speed of a lot of producers when improving diesel engine starting all is designed with the valve mechanism of decompressor on the cylinder head of diesel engine.When engine cold-starting, press decompression handle, decompression shaft rotates and makes the decompression screw be pressed on the rocker head, forces intake valve to partially open.During engine rotation, the air that gets in the cylinder no longer is compressed.Under the driving of Starter, the rotating speed of motor raises very soon, when engine speed reaches one regularly, unclamps decompression handle, makes the mechanism of decompressor lose decompression, and valve recovers proper functioning.Air in the cylinder is when Fast Compression, and pressure and temperature raises very soon.When fuel oil supply system during in time to cylinder-in oil-jet, motor can start soon.Originally the mechanism of decompressor aims at the convenient design of engine start, and most of single cylinder diesel of producing now still uses this technology when starting.
In recent years; All adopted the toroidal swirl type combustion manner of easy startup along with the most of diesel engine of the minimizing of the motor quantity of vortex type and pre-burning cell-type; Decompression mechanism of air cylinder has seemed not too important as the function that auxiliary engine starts; Therefore on the multi-cylinder diesel engine with direct injection, decompression mechanism of air cylinder is by cancel all.But the critical function of decompression mechanism of air cylinder safety, fuel-economizing, still undiscovered at present and utilization fully.
Summary of the invention
The objective of the invention is to, overcome the defective of above-mentioned existing technology and a kind of decompression mechanism of air cylinder of Motor Vehicle is provided.
For realizing above-mentioned purpose, the present invention takes following design proposal:
A kind of decompression mechanism of air cylinder of Motor Vehicle; Decompression arm that comprise decompression shaft, links to each other and the power supply that links to each other with said decompression arm through decompression control circuit and vacuum solenoid valve with decompression shaft; Said decompression control circuit comprises gas pedal control circuit and the normally closed switch that links to each other with braking pedal; One end of said normally closed switch is electrically connected with said power supply, and the other end of said normally closed switch links to each other with said vacuum solenoid valve through said gas pedal control circuit.
Preferably; Said decompression control circuit also comprises the selector switch that links to each other with said power supply; First contact of said selector switch is electrically connected with the cylinder firing circuit, and second contact of said selector switch links to each other with said gas pedal control circuit through said normally closed switch.
Further, said gas pedal control circuit comprises first ganged switch that links to each other with accelerator pedal motor vehicle.
Preferably; First normally-closed contact of said first ganged switch and second normally opened contact are electrically connected with said normally closed switch respectively; Second normally-closed contact of said first ganged switch is electrically connected with said vacuum solenoid valve, and first normally opened contact of said first ganged switch is electrically connected with first contact of said cylinder firing circuit and said selector switch respectively.
Preferably, said decompression control circuit also comprises the speed relay control circuit that links to each other with said gas pedal control circuit.
Preferably, said speed relay control circuit comprises respectively speed relay that links to each other with said first ganged switch with said normally closed switch and second ganged switch that is electrically connected with first contact of said cylinder firing circuit and said selector switch.
Preferably; First normally opened contact of said second ganged switch is electrically connected with second normally-closed contact of said vacuum solenoid valve and said first ganged switch respectively, and second normally opened contact of said second ganged switch is electrically connected with said normally closed switch and speed relay respectively; First normally-closed contact of said second ganged switch is electrically connected with second normally opened contact of said first ganged switch, and second normally-closed contact of said second ganged switch is electrically connected with first contact of said cylinder firing circuit and said selector switch respectively.Further preferably, said decompression control circuit also comprises the control gear of the setting speed upper and lower bound that links to each other with said speed relay.
Advantage of the present invention is: the present invention has made full use of decompression mechanism of air cylinder, under specific situation, opens the mechanism of decompressor, forces engine stop working; Under the situation that oil-break stops working, the inertia when utilizing automobile to advance promotes the race of engine.When needing proper functioning, make the mechanism of decompressor return to non-decompression state again.Meanwhile, supply system recovers proper functioning, and under the promotion of inertial force, motor can recover proper functioning again, so repeatedly, thereby reaches not only safety but also fuel-efficient purpose.
Description of drawings
Fig. 1 is the circuit diagram under the motor normal working in an embodiment of the present invention;
Fig. 2 is cylinder decompression, the circuit diagram when motor is not worked in embodiment illustrated in fig. 1;
Fig. 3 is for cylinder in embodiment illustrated in fig. 1 does not reduce pressure, the circuit diagram when motor is not worked;
Fig. 4 is cylinder decompression, the circuit diagram when motor is not worked under the medium velocity relay control embodiment illustrated in fig. 1;
Fig. 5 is the another kind of embodiment's of the present invention schematic representation.
Embodiment
Embodiment 1:
Referring to Fig. 1 to Fig. 4; The preferred embodiment of the decompression mechanism of air cylinder of a kind of Motor Vehicle of the present invention shown in it; Comprise decompression shaft 1, decompression arm 3, vacuum solenoid valve 4, power supply 13 and decompression control circuit; Decompression arm 3 links to each other with decompression shaft 1, and power supply 13 links to each other with said decompression arm 3 with vacuum solenoid valve 4 through the decompression control circuit, and said decompression control circuit comprises gas pedal control circuit and the normally closed switch 15 that links to each other with braking pedal 9; One end of said normally closed switch 15 is electrically connected with said power supply 13, and the other end of said normally closed switch 15 links to each other with said vacuum solenoid valve 4 through said gas pedal control circuit.Preferably; Said decompression control circuit also comprises the selector switch that links to each other with said power supply 13; First contact 7 of said selector switch is electrically connected with cylinder firing circuit 2, and second contact 10 of said selector switch links to each other with said gas pedal control circuit through said normally closed switch 15.Said gas pedal control circuit comprises first ganged switch 20 that links to each other with accelerator pedal motor vehicle 6.First normally-closed contact 8 ' of said first ganged switch 20 and second normally opened contact 12 ' are electrically connected with said normally closed switch 15 respectively; Second normally-closed contact 8 of said first ganged switch 20 is electrically connected with said vacuum solenoid valve 4, and first normally opened contact 12 of said first ganged switch 20 is electrically connected with first contact 7 of said cylinder firing circuit 2 and said selector switch respectively.Said decompression control circuit also comprises the speed relay control circuit that links to each other with said gas pedal control circuit.Said speed relay control circuit comprises respectively speed relay 14 that links to each other with said first ganged switch 20 with said normally closed switch 15 and second ganged switch 30 that is electrically connected with first contact 7 of said cylinder firing circuit 2 and said selector switch.First normally opened contact 5 ' of said second ganged switch 30 is electrically connected with second normally-closed contact 8 of said vacuum solenoid valve 4 and said first ganged switch 20 respectively, and second normally opened contact 5 of said second ganged switch 30 is electrically connected with said normally closed switch 15 and speed relay 14 respectively; First normally-closed contact 11 of said second ganged switch 30 is electrically connected with second normally opened contact 12 ' of said first ganged switch 20, and second normally-closed contact 11 ' of said second ganged switch 30 is electrically connected with first contact 7 of said cylinder firing circuit 2 and said selector switch respectively.Said decompression control circuit also comprises the control gear of the setting speed upper and lower bound that links to each other with said speed relay 14.In the present embodiment, Motor Vehicle decompression mechanism of air cylinder of the present invention both can adopt manual control, also can adopt automatic control.
The manual control method and the autocontrol method of present embodiment gasoline car:
As stated, decompression mechanism of air cylinder of the present invention is made up of decompression arm 3, vacuum solenoid valve 4, speed relay 14, ganged switch 20 and 30, normally closed switch 15, selector switch, storage battery, gas pedal 6, braking pedal 9 and cylinder firing circuit 2 etc.
Wherein, entire circuit is composed in series with the normally closed switch 15 and the storage battery of hand brake pedal 9 controls by described firing circuit 2, speed relay 14 circuit and after vacuum solenoid valve 4 circuit are parallelly connected again, and is as shown in Figure 1.Wherein normally opened contact 12,12 ' is parallelly connected with normally-closed contact 8,8 ', the normally-closed contact of speed relay 14 control 11,11 ' with ganged switch 20 that gas pedal 6 is controlled in normally opened contact 12,12 ' connect.Gas pedal 6 control ganged switches 20, wherein normally opened contact 12,12 ' is connected on 2 li of petrol engine EFI and firing circuits, and normally-closed contact 8,8 ' is connected in vacuum solenoid valve 4 circuit.Pedal 6 as long as step on the throttle, EFI and some thermoelectricity 2 tunnel proper functioning, and vacuum solenoid valve 4 circuit break off simultaneously.Lose throttle, vacuum solenoid valve 4 is switched on and is connected at once, and EFI and firing circuit 2 break off at once, the normally closed switch 15 of before electromagnetic valve circuit 4 and speed relay 14 circuit, also connecting, and its normally-closed contact is by braking pedal 9 controls.
The manual control working principle:
If driver's pin does not leave gas pedal 6 in the automobile running; Need to slow down when bend is turned in the automobile running; Driver's pin then need unclamp gas pedal 6, is connected on normally opened contact 12, the 12 ' automatic disconnection of 2 li of EFI and firing circuits, and motor is quit work because of the outage oil-break.Meanwhile; The normally closed switch contact 8,8 ' that is connected in vacuum solenoid valve 4 circuit is connected vacuum solenoid valve 4 circuit automatically; The vacuum solenoid valve 4 energising rear driving mechanisms of decompressor are opened the valve decompression, and this moment, motor dallied under the promotion of automobile inertial power, and is as shown in Figure 2.Normal open switch contact 12,12 ' in the back driver that the turns pedal 6 of stepping on the throttle again, this moment EFI and firing circuit 2 is closed by by force, and this circuit recovers proper functioning, the fuel feeding of supplying power again.Meanwhile, the normally closed switch contact 8,8 ' in vacuum solenoid valve 4 circuit is also opened by force and down circuitry, vacuum solenoid valve 4 is quit work, and the mechanism of decompressor returns to non-decompression state, and motor car engine is restarted work, and is as shown in Figure 1.If in decompression process, need make car deceleration, as long as the driver steps on braking pedal 9, the normally closed switch 15 that is connected in the circuit will be opened by force, and this moment, vacuum solenoid valve 4 returned to non-decompression state because of outage makes the mechanism of decompressor.Though this moment, engine valve recovered proper functioning, motor still is in off position because of the outage oil-break, and is as shown in Figure 3.If driver's releasing of brake pedal 9 afterwards, motor returns to the decompression off position again, and is as shown in Figure 2, and this situation often occurs when descending.
The speed relay of present embodiment gasoline car is control and working principle thereof automatically
In middle and high fast scope, the driver can be according to circumstances through the upper and lower bound of the random setting speed of said control gear (not shown).In the velocity range of setting, the working condition of motor is controlled by vacuum solenoid valve 4, speed relay 14 and EFI and firing circuit 2 automatically.Automobile under steam, if speed meets or exceeds the speed limit of setting, when the driver is ignorant; The signal instruction that speed relay 14 is accepted said control gear breaks off the normally-closed contact 11,11 ' of oneself, causes EFI and firing circuit 2 outages, meanwhile; Normally opened contact 5,5 ' closure are connected the circuit of vacuum solenoid valve 4, and the energising of vacuum solenoid valve 4 makes valve open decompression; Motor is in the decompression off position, and drives idle running by automobile inertial power, and is as shown in Figure 4.If reach the lower limit speed of a motor vehicle in the automobile running, under the unwitting situation of driver, speed relay 14 is action once more under the instruction of said control gear equally; Make oneself normally-closed contact 11,11 ' closure, normally opened contact 5,5 ' is opened, and automobile electronic fuel oil jet and firing circuit 2 reclose the power supply fuel feeding; Meanwhile, mechanism of decompressor outage makes valve recover proper functioning; Motor comes back to normal working, and is as shown in Figure 1.So repeatedly, drive standard person under the situation of not unclamping throttle, motor car engine all the time in the replacing each other of decompression off position and normal working, the labor of having exempted driver's frequent operation thus.The speed of a motor vehicle below speed relay 14 out of contior lower limits is still freely controlled by the driver.If in the scope of speed relay control, need to slow down, as long as the driver loses throttle, steps on brake, voltage step-down circuit will recover normal because of outage makes valve, and this moment, automobile was in the off position that do not reduce pressure, and is as shown in Figure 3.
Can know that through above description in the free control range of manual work, as long as the driver has stepped on gas pedal 6, motor is worked at once, and is as shown in Figure 1.Lose throttle, motor quits work at once, and is as shown in Figure 2.Step on brake, though the engine valve recovery is normal, because of outage, oil-break, motor is not still worked, and is as shown in Figure 3.Releasing of brake, motor come back to the decompression off position, and be as shown in Figure 2.In automatic control range, the speed of a motor vehicle reaches the upper limit of setting, and driver's pin does not unclamp throttle, and motor also can quit work, and is as shown in Figure 4.The speed of a motor vehicle drops to lower limit, and motor also can be resumed work automatically, and is as shown in Figure 1.In addition, no matter under which kind of situation, as long as step on brake, engine valve all can recover proper functioning.If the frequent interrupter duty of motor not only can be saved a large amount of fuel, will reduce the discharging of all gases and temperature simultaneously significantly.
The control selector switch
Depressed control device mainly is when the automobile high speed is gone, to use, and speed is crossed when hanging down not easy to operate, and the spy has designed a selector switch in the gasoline car circuit for this reason.Switch has two positions, i.e. normal operation position and decompression control position, and this switch can be contained in the convenient position of driver, operation when being beneficial to drive.
Embodiment 2:
Referring to Fig. 5, the another kind of preferred embodiment of the decompression mechanism of air cylinder of a kind of Motor Vehicle of the present invention shown in it, the main distinction of present embodiment and the foregoing description is and can only adopts manual work to control.The decompression mechanism of air cylinder of present embodiment comprises decompression shaft 1, decompression arm 3, vacuum solenoid valve 4, power supply 13 and decompression control circuit; Decompression arm 3 links to each other with decompression shaft 1; Power supply 13 links to each other with said decompression arm 3 with vacuum solenoid valve 4 through the decompression control circuit; Said decompression control circuit comprises gas pedal control circuit and the normally closed switch 15 that links to each other with braking pedal 9; One end of said normally closed switch 15 is electrically connected with said power supply 13, and the other end of said normally closed switch 15 links to each other with said vacuum solenoid valve 4 through said gas pedal control circuit.Preferably; Said decompression control circuit also comprises the selector switch that links to each other with said power supply 13; First contact 7 of said selector switch is electrically connected with cylinder firing circuit 2, and second contact 10 of said selector switch links to each other with said gas pedal control circuit through said normally closed switch 15.Said gas pedal control circuit comprises first ganged switch 20 that links to each other with accelerator pedal motor vehicle 6.First normally-closed contact 8 ' of said first ganged switch 20 and second normally opened contact 12 ' are electrically connected with said normally closed switch 15 respectively; Second normally-closed contact 8 of said first ganged switch 20 is electrically connected with said vacuum solenoid valve 4, and first normally opened contact 12 of said first ganged switch 20 is electrically connected with first contact 7 of said cylinder firing circuit 2 and said selector switch respectively.
In this preferred embodiment, Motor Vehicle decompression mechanism of air cylinder of the present invention can only adopt manual control.
If driver's pin does not leave gas pedal 6 in the automobile running; Need to slow down when bend is turned in the automobile running; Driver's pin then need unclamp gas pedal 6, is connected on normally opened contact 12, the 12 ' automatic disconnection of 2 li of EFI and firing circuits, and motor is quit work because of the outage oil-break.Meanwhile, the normally closed switch contact 8,8 ' that is connected in vacuum solenoid valve 4 circuit is connected vacuum solenoid valve 4 circuit automatically, and the vacuum solenoid valve 4 energising rear driving mechanisms of decompressor are opened the valve decompression, and this moment, motor dallied under the promotion of automobile inertial power.Normal open switch contact 12,12 ' in the back driver that the turns pedal 6 of stepping on the throttle again, this moment EFI and firing circuit 2 is closed by by force, and this circuit recovers proper functioning, the fuel feeding of supplying power again.Meanwhile, the normally closed switch contact 8,8 ' in vacuum solenoid valve 4 circuit is also opened by force and down circuitry, vacuum solenoid valve 4 is quit work, and the mechanism of decompressor returns to non-decompression state, and motor car engine is restarted work.If in decompression process, need make car deceleration, as long as the driver steps on braking pedal 9, the normally closed switch 15 that is connected in the circuit will be opened by force, and this moment, vacuum solenoid valve 4 returned to non-decompression state because of outage makes the mechanism of decompressor.Though this moment, engine valve recovered proper functioning, motor still is in off position because of the outage oil-break.If driver's releasing of brake pedal 9 afterwards, motor returns to the decompression off position again, and this situation often occurs when descending.
Obviously, those of ordinary skill in the art can use the decompression mechanism of air cylinder of a kind of Motor Vehicle of the present invention, constitutes various types of motor mechanisms of decompressor.
The foregoing description only supplies to explain the present invention's usefulness; And be not to be limitation of the present invention; The those of ordinary skill in relevant technologies field without departing from the present invention, can also be made various variations and modification; Therefore all technological schemes that are equal to also should belong to category of the present invention, and scope of patent protection of the present invention should be limited each claim.

Claims (8)

1. the decompression mechanism of air cylinder of a Motor Vehicle; Comprise decompression shaft (1), the decompression arm (3) that links to each other with decompression shaft (1) and the power supply (13) that links to each other with said decompression arm (3) through decompression control circuit and vacuum solenoid valve (4); It is characterized in that: said decompression control circuit comprises gas pedal control circuit and the normally closed switch (15) that links to each other with braking pedal (9); One end of said normally closed switch (15) is electrically connected with said power supply (13), and the other end of said normally closed switch (15) links to each other with said vacuum solenoid valve (4) through said gas pedal control circuit.
2. decompression mechanism of air cylinder according to claim 1; It is characterized in that: said decompression control circuit also comprises the selector switch that links to each other with said power supply (13); First contact (7) of said selector switch is electrically connected with cylinder firing circuit (2), and second contact (10) of said selector switch links to each other with said gas pedal control circuit through said normally closed switch (15).
3. decompression mechanism of air cylinder according to claim 2 is characterized in that: said gas pedal control circuit comprises first ganged switch (20) that links to each other with accelerator pedal motor vehicle (6).
4. decompression mechanism of air cylinder according to claim 3; It is characterized in that: first normally-closed contact (8 ') of said first ganged switch (20) and second normally opened contact (12 ') are electrically connected with said normally closed switch (15) respectively; Second normally-closed contact (8) of said first ganged switch (20) is electrically connected with said vacuum solenoid valve (4), and first normally opened contact (12) of said first ganged switch (20) is electrically connected with first contact (7) of said cylinder firing circuit (2) and said selector switch respectively.
5. decompression mechanism of air cylinder according to claim 4 is characterized in that: said decompression control circuit also comprises the speed relay control circuit that links to each other with said gas pedal control circuit.
6. decompression mechanism of air cylinder according to claim 5 is characterized in that: said speed relay control circuit comprises respectively speed relay (14) that links to each other with said first ganged switch (20) with said normally closed switch (15) and second ganged switch (30) that is electrically connected with first contact (7) of said cylinder firing circuit (2) and said selector switch.
7. decompression mechanism of air cylinder according to claim 6; It is characterized in that: first normally opened contact (5 ') of said second ganged switch (30) is electrically connected with second normally-closed contact (8) of said vacuum solenoid valve (4) and said first ganged switch (20) respectively, and second normally opened contact (5) of said second ganged switch (30) is electrically connected with said normally closed switch (15) and speed relay (14) respectively; First normally-closed contact (11) of said second ganged switch (30) is electrically connected with second normally opened contact (12 ') of said first ganged switch (20), and second normally-closed contact (11 ') of said second ganged switch (30) is electrically connected with first contact (7) of said cylinder firing circuit (2) and said selector switch respectively.
8. according to claim 6 or 7 described decompression mechanism of air cylinder, it is characterized in that: said decompression control circuit also comprises the control gear of the setting speed upper and lower bound that links to each other with said speed relay (14).
CN2009101361449A 2009-05-04 2009-05-04 Decompression mechanism of air cylinder of motor vehicle Expired - Fee Related CN101881199B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN2009101361449A CN101881199B (en) 2009-05-04 2009-05-04 Decompression mechanism of air cylinder of motor vehicle
PCT/CN2010/072426 WO2010127611A1 (en) 2009-05-04 2010-05-04 Decompression mechanism for cylinder of motor vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009101361449A CN101881199B (en) 2009-05-04 2009-05-04 Decompression mechanism of air cylinder of motor vehicle

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Publication Number Publication Date
CN101881199A CN101881199A (en) 2010-11-10
CN101881199B true CN101881199B (en) 2012-02-29

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102536475B (en) * 2012-01-12 2013-12-18 傅小理 Trigger signal control engine decompression device
CN108958160B (en) * 2018-08-24 2023-08-11 铭科精技控股股份有限公司 Automatic detection safety circuit for double valves of punching machine

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Publication number Priority date Publication date Assignee Title
CN2851588Y (en) * 2005-10-21 2006-12-27 李殿荣 Electrically-driven single-cylinder diesel engine and baby tractor decompressor
JP2007132270A (en) * 2005-11-10 2007-05-31 Honda Motor Co Ltd Engine control device
CN101240748A (en) * 2008-01-18 2008-08-13 杨渝 Motor vehicle energy-saving process
CN101392668A (en) * 2008-11-07 2009-03-25 东北大学 A fuel-saving device for a vehicle engine

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JP2790427B2 (en) * 1993-12-29 1998-08-27 川崎重工業株式会社 Engine decompression mechanism with recoil starter
JP4549321B2 (en) * 2006-07-14 2010-09-22 本田技研工業株式会社 Decompression device for internal combustion engine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2851588Y (en) * 2005-10-21 2006-12-27 李殿荣 Electrically-driven single-cylinder diesel engine and baby tractor decompressor
JP2007132270A (en) * 2005-11-10 2007-05-31 Honda Motor Co Ltd Engine control device
CN101240748A (en) * 2008-01-18 2008-08-13 杨渝 Motor vehicle energy-saving process
CN101392668A (en) * 2008-11-07 2009-03-25 东北大学 A fuel-saving device for a vehicle engine

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CN101881199A (en) 2010-11-10

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