CN203584645U - Dual-fuel internal combustion engine gas injection valve driver - Google Patents
Dual-fuel internal combustion engine gas injection valve driver Download PDFInfo
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- CN203584645U CN203584645U CN201320655276.4U CN201320655276U CN203584645U CN 203584645 U CN203584645 U CN 203584645U CN 201320655276 U CN201320655276 U CN 201320655276U CN 203584645 U CN203584645 U CN 203584645U
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- injection valve
- field effect
- effect transistor
- resistance
- control
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Abstract
The utility model relates to a dual-fuel internal combustion engine gas injection valve driver and can effectively solve problems that existing injection valve driving circuits are poor in control precision, poor in safety and reliability, high in failure rate and short in service life. According to the technical scheme, the driver consists of a casing and a control circuit inside the casing, wherein the control circuit consists of an injection valve opening circuit and an injection valve discharging return circuit; output ends of the injection valve opening circuit and the injection valve discharging return circuit are connected in parallel, connected with an injection valve coil socket on the casing and connected with an injection valve coil through the injection valve coil socket; an input control end of the injection valve opening circuit is connected with a valve opening control port on the casing; and an input control end of the injection valve discharging return circuit is connected with a valve discharging control port on the casing. The driver is simple in structure, novel, unique, capable of effectively realizing automatic control on an injection valve, safe, reliable, long in service life and good in economic benefit and social benefit.
Description
Technical field
The utility model relates to auto electric equipment, particularly a kind of bi-fuel internal combustion engine fuel gas injection valve actuator.
Background technique
Fuel gas injection valve (claiming again gas injection air valve) is gas distributing device, is one of natural gas engine capital equipment.Natural gas via fuel gas injection valve output, can be simultaneously to a plurality of cylinders output gas, and bus or car start to adopt rock gas etc. to replace gasoline or diesel oil as automotive fuel at present, so the application of fuel gas injection valve is day by day extensive.
Fuel gas injection valve is a kind of electric-controlled mechanical device, the impact of the controlled voltage of meeting in working life, current precision.It is also to depend on fuel gas injection valve to drive precision that the gas of each cylinder of motor is supplied with precision, therefore improves fuel gas injection valve and drives precision imperative.
Summary of the invention
For above-mentioned situation, for improving fuel gas injection valve, drive precision, the object of the utility model is just to provide a kind of bi-fuel internal combustion engine fuel gas injection valve actuator, the control accuracy that can effectively solve existing injection valve drive circuit is poor, safety reliability is poor, and rate of fault is high, the problem that working life is short.
The technological scheme that the utility model solves is, by the control circuit in housing and housing thereof, formed, described control circuit is to consist of injection valve open circuit and injection valve electric discharge return curcuit, injection valve open circuit is in parallel with the output terminal of injection valve electric discharge return curcuit, injection valve coil socket on body contact body, by injection valve coil socket, with injection valve coil, be connected, the input control end of injection valve open circuit is opened control port with the valve on housing and is connected, and injection valve electric discharge return curcuit input control end is connected with the valve control of discharge port on housing.
The utility model is simple in structure, novel unique, effectively realizes the automatic control of injection valve, and safe and reliable, long service life, has good economic and social benefit.
Accompanying drawing explanation
Fig. 1 is stereoscopic figure of the present utility model.
Fig. 2 is control circuit figure of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated.
By Fig. 1,2, provided, the utility model consists of the control circuit in housing and housing thereof, described control circuit is to consist of injection valve open circuit and injection valve electric discharge return curcuit, injection valve open circuit is in parallel with the output terminal of injection valve electric discharge return curcuit, injection valve coil socket 2 on body contact body 1, by injection valve coil socket, with injection valve coil, be connected, the input control end of injection valve open circuit is opened control port 3 with the valve on housing and is connected, and injection valve electric discharge return curcuit input control end is connected with the valve control of discharge port 4 on housing, described injection valve open circuit is by resistance R 5(1k Ω), R6(33 Ω), field effect transistor driver U1(adopts TC4427), field effect transistor Q3 forms, resistance R 5 two ends connect respectively valve and open control port 3, 2 pin of field effect transistor driver U1, the 3 pin ground connection of field effect transistor driver U1, 6 pin of field effect transistor driver U1 meet power supply 12V, 7 pin of field effect transistor driver U1 connect the grid of field effect transistor Q3 through resistance R 6, the grounded drain of field effect transistor Q3 (GND), the source electrode of field effect transistor Q3 connects injection valve coil and injection valve electric discharge return curcuit, described injection valve electric discharge return curcuit is by resistance R 1(1k Ω), R2(1k Ω), R3(10k Ω), R4(4.7k Ω), field effect transistor Q1(SI9948), NPN triode Q2 and reference diode D1(SK54) form, resistance R 2 two ends connect respectively valve control of discharge port 4, NPN triode Q2(8050) base stage and earth resistance R4, the grounded-emitter connection of NPN triode Q2, the collector electrode of NPN triode Q2 is through the grid of resistance R 1 connecting resistance R3 one end and field effect transistor Q1, the source electrode of field effect transistor Q1 meets power supply 24V, the other end of drain electrode connecting resistance R3 of field effect transistor Q1 and the negative pole of reference diode D1, the positive pole of reference diode D1 is connected with the source electrode of field effect transistor Q3, through injection valve coil socket 2, connect the injection coil of injection valve.
Described housing is rectangular, circle or other suitable shape.
Working condition of the present utility model is, the control signal of being inputted by injection valve unlatching control end enters field effect transistor driver U1 through resistance R 5 control voltage is risen to 12V, and the 12V threshold switch of field effect transistor driver U1 output is controlled voltage field effect transistor Q3 after resistance R 6 current limlitings and opened; 24V power supply, through injection valve, Q3 stream, power supply ground GND, forms current loop, and injection valve is opened.Control signal by the input of valve control of discharge end is inputted NPN triode Q2 after resistance R 2 current limlitings; Q2 conducting; the grid potential of field effect transistor Q1 is by high step-down; drive Q1 to open by closing to become again; the voltage that injection valve discharges is through reference diode D1, field effect transistor Q1,24V power supply; form current loop, safe release high voltage, protection field effect transistor Q3.
By above-mentioned, can clearly be found out, when the utility model is used, valve is opened control port 3, valve control of discharge port 4 is connected with the controller on automobile, and injection valve coil socket 2 is connected with the injection valve coil of injection valve, effectively realize the automatic control to injection valve working state, easy to install, easily existing control valve to be transformed, cost is low, energy consumption is low, safe and reliable, long service life, is the innovation on fuel gas injection valve actuator.
Claims (1)
1. a bi-fuel internal combustion engine fuel gas injection valve actuator, by the control circuit in housing and housing thereof, formed, it is characterized in that, described control circuit is to consist of injection valve open circuit and injection valve electric discharge return curcuit, injection valve open circuit is in parallel with the output terminal of injection valve electric discharge return curcuit, injection valve coil socket (2) on body contact body (1), by injection valve coil socket, with injection valve coil, be connected, the input control end of injection valve open circuit is opened control port (3) with the valve on housing and is connected, injection valve electric discharge return curcuit input control end is connected with the valve control of discharge port (4) on housing,
Described injection valve open circuit is to consist of resistance R 5, R6, field effect transistor driver U1, field effect transistor Q3, resistance R 5 two ends connect respectively 2 pin that valve is opened control port (3), field effect transistor driver U1, the 3 pin ground connection of field effect transistor driver U1,6 pin of field effect transistor driver U1 meet power supply 12V, 7 pin of field effect transistor driver U1 connect the grid of field effect transistor Q3 through resistance R 6, the grounded drain of field effect transistor Q3, the source electrode of field effect transistor Q3 connects injection valve coil and injection valve electric discharge return curcuit;
Described injection valve electric discharge return curcuit is by resistance R 1, R2, R3, R4, field effect transistor Q1, NPN triode Q2 and reference diode D1 form, resistance R 2 two ends connect respectively valve control of discharge port (4), the base stage of NPN triode Q2 and earth resistance R4, the grounded-emitter connection of NPN triode Q2, the collector electrode of NPN triode Q2 is through the grid of resistance R 1 connecting resistance R3 one end and field effect transistor Q1, the source electrode of field effect transistor Q1 meets power supply 24V, the other end of drain electrode connecting resistance R3 of field effect transistor Q1 and the negative pole of reference diode D1, the positive pole of reference diode D1 is connected with the source electrode of field effect transistor Q3, through injection valve coil socket (2), connect the injection coil of injection valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320655276.4U CN203584645U (en) | 2013-10-23 | 2013-10-23 | Dual-fuel internal combustion engine gas injection valve driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320655276.4U CN203584645U (en) | 2013-10-23 | 2013-10-23 | Dual-fuel internal combustion engine gas injection valve driver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203584645U true CN203584645U (en) | 2014-05-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320655276.4U Expired - Fee Related CN203584645U (en) | 2013-10-23 | 2013-10-23 | Dual-fuel internal combustion engine gas injection valve driver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203584645U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105135031A (en) * | 2015-07-31 | 2015-12-09 | 上海卫星工程研究所 | Chemical thruster electromagnetic valve control and state collection circuit for satellites |
-
2013
- 2013-10-23 CN CN201320655276.4U patent/CN203584645U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105135031A (en) * | 2015-07-31 | 2015-12-09 | 上海卫星工程研究所 | Chemical thruster electromagnetic valve control and state collection circuit for satellites |
| CN105135031B (en) * | 2015-07-31 | 2018-02-06 | 上海卫星工程研究所 | Satellite chemical thruster solenoid valve control and state acquisition circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wu Jian Inventor after: Li Yong Inventor before: Ding Jingguo Inventor before: Li Yong |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: DING JINGGUO LI YONG TO: WU JIAN LI YONG |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140507 Termination date: 20141023 |
|
| EXPY | Termination of patent right or utility model |