CN105840324B - A kind of pressure reducing valve intelligent control circuit and its control method - Google Patents
A kind of pressure reducing valve intelligent control circuit and its control method Download PDFInfo
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- CN105840324B CN105840324B CN201610329214.2A CN201610329214A CN105840324B CN 105840324 B CN105840324 B CN 105840324B CN 201610329214 A CN201610329214 A CN 201610329214A CN 105840324 B CN105840324 B CN 105840324B
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- ATUOYWHBWRKTHZ-UHFFFAOYSA-N propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000000446 fuel Substances 0.000 claims abstract description 17
- 239000003921 oil Substances 0.000 claims description 17
- 230000001960 triggered Effects 0.000 claims description 12
- 230000001276 controlling effect Effects 0.000 claims description 9
- 230000000875 corresponding Effects 0.000 claims description 9
- 239000010705 motor oil Substances 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims description 2
- 239000010721 machine oil Substances 0.000 description 10
- 239000003381 stabilizer Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 230000002093 peripheral Effects 0.000 description 1
Abstract
The present invention discloses a kind of pressure reducing valve intelligent control circuit and its control method, the control circuit includes controller, rectifier bridge, valve change-over switch, start button and charge coil, wherein, 4 microswitch work are driven when the valve change-over switch rotates, the controller respectively with LPG solenoid valve, first microswitch, second microswitch, third microswitch, 4th microswitch, carburetor electromagnetic valve, AVR is connected with the flame-out end of high voltage package, charge coil passes through rectifier bridge, it is connected after 4th microswitch with storage battery, on the one hand starting motor relay anode is connected with storage battery, on the other hand it is connected by the 4th microswitch with controller, the starting motor relay cathode is connected with start button.The present invention realizes generator unlatching, flame-out and three kinds of states of work, can easily realize generator fuel feeding or gas supply, it is ensured that generator stable operation by the control of controller and the switching of valve change-over switch.
Description
Technical field
The present invention relates to a kind of pressure reducing valve intelligent control circuit and its control methods, belong to technical field of engines.
Background technique
Solenoid valve control circuit currently used in the market needs to be turned off manually burnt gas valve, and needs manual operation multiple
Step is switched on to realize, shutdown, and fuel oil switching is also needed to close power down switch after shutdown, be influenced with protecting the battery from.To use
Cumbersome operation is brought at family, is often forgotten for most of unprofessional user and is fallen wherein some even certain several operation,
And then bring security risk.User with greater need for be a kind of convenience, succinctly, but safety operation.
In view of this, the present inventor studies this, a kind of pressure reducing valve intelligent control circuit and its control are specially developed
Thus method processed, this case generate.
Summary of the invention
The object of the present invention is to provide a kind of pressure reducing valve intelligent control circuit and its control methods, pass through the control of controller
Engine unlatching, flame-out and three kinds of states of work are realized in the switching of system and valve change-over switch, can be easily real
Existing engine oil or gas supply, it is ensured that engine stabilizer operation.
To achieve the goals above, solution of the invention is:
A kind of pressure reducing valve intelligent control circuit, including controller, rectifier bridge, valve change-over switch, start button and charging
Coil, wherein drive the work of 4 microswitches when the valve change-over switch rotates, the controller respectively with LPG electromagnetism
Valve, the first microswitch, the second microswitch, third microswitch, the 4th microswitch, carburetor electromagnetic valve, AVR
(automatic voltage regulator, automatic voltage pressure regulator) is connected with the flame-out end of high voltage package, and charge coil is by whole
It is connected after stream bridge, the 4th microswitch with storage battery, on the one hand starting motor relay anode is connected with storage battery, on the other hand pass through
4th microswitch is connected with controller, and the starting motor relay cathode is connected with start button, the start button other end
Ground connection.
Preferably, the controller is further connected with machine oil alarm, for detecting machine oil alarm signal.
Preferably, the controller is further connected with a bi-colour LED, it is used to indicate the various of cluster engine
State.
Preferably, the controller is controlled using single-chip microcontroller.
Preferably, the third microswitch and the 4th microswitch are two-way choice switch, there is the fixed end a
Mouth and the selectable port b and the port c.
Preferably, the starting motor relay cathode is connected by fuse with start button, it can using fuse
Start route with protection.
Preferably, the carburetor electromagnetic valve is used to control carburetor oil inside offering, using normally open solenoid valve, i.e. carburetion
Carburetor internal oil passages are opened when device solenoid valve no power, and carburetor internal oil passages are cut off after energization.
Preferably, LPG solenoid valve supplies inside pressure reducing valve for controlling, not using normally closed solenoid valve, i.e. LPG solenoid valve
Gas supply inside pressure reducing valve is cut off when energization, and gas supply inside pressure reducing valve is opened after energization.
The control method of above-mentioned pressure reducing valve intelligent control circuit, including oil-feeding control step and gas supply rate-determining steps, specifically
Include:
Step 1: by the rotation of valve change-over switch, opening the first microswitch, the second microswitch, third fine motion
Pass, the 4th microswitch follow linkage work, are engine oil or gas supply, when valve change-over switch turns to " GAS " shelves
When, fuel feeding is selected, controller controls carburetor electromagnetic valve and the equal no power of LPG solenoid valve；
Step 1-1: when valve change-over switch turns to " GAS " state, the triggering of the first microswitch, the second microswitch
It does not trigger, the end a-b of third microswitch is connected, and the end a-b of the 4th microswitch is connected, and the flame-out end of high voltage package is earth-free, makes
Engine ignition, meanwhile, engine and carburetor solenoid valve is in normally open because of no power, and engine starts fuel feeding, corresponding
Indicator light is bright；
Step 1-2: when pressing start button, the first microswitch and the second microswitch are not triggered, third fine motion
The end a-b of switch is connected, and the end a-b of the 4th microswitch is connected, and starting motor relay one terminates storage battery, and one end ground connection is opened
Dynamic motor relay obtains electric closure, and starting-motor of engine is started to work, and corresponding indicator light is bright, after the setting time that works well,
Controller delivers a signal to AVR, provides complete machine power supply；
Step 1-3: when valve change-over switch is " OFF " state, the first microswitch and the second microswitch are not touched
The end a-c of hair, third microswitch is connected, and the end a-c of the 4th microswitch is connected, and the flame-out end ground connection of high voltage package, engine stops
Stop fire, engine and carburetor solenoid valves, oil circuit disconnect, and engine stop fuel feeding, it is bright that bi-colour LED corresponds to indicator light；
Step 2: when valve change-over switch turns to " LPG " shelves, selection gas supply, controller control carburetor electromagnetic valve and
LPG solenoid valve is powered, the conducting of pressure reducing valve gas circuit, oil circuit closure, and carburetor electromagnetic valve is powered, and thoroughly cuts off carburetor oil circuit,
It prevents its internal fuel from participating in burning, leads to engine fluctuation of service；
Step 2-1: when valve change-over switch is to " LPG ", the first microswitch is not triggered, the triggering of the second microswitch,
The end a-b of third microswitch is connected, and the end a-b of the 4th microswitch is connected, and there is signal at the flame-out end of high voltage package, makes engine point
Fire, meanwhile, engine and carburetor solenoid valve is in closed state because being powered, and starts to supply for engine by solenoid valve, right
Answer indicator light bright；
Step 2-2: when pressing start button, the first microswitch and the second microswitch are not triggered, third fine motion
Switch be connected with the end a-b of the 4th microswitch, starting motor relay one terminate storage battery, one end be grounded, start motor after
Electric appliance obtains electric closure, and starting motor is started to work, and corresponding indicator light is bright, and after the setting time that works well, controller transmits signal
To AVR, complete machine power supply is provided；
Step 2-3: when valve conversion switch arrives " OFF ", the first microswitch and the second microswitch are not triggered, the
The end a-c of three microswitches is connected, and the end a-c of the 4th microswitch is connected, the flame-out end ground connection of high voltage package, engine stop point
Fire makes LPG solenoid valve no power by controller, and gas circuit disconnects, and engine stop gas supply, bi-colour LED corresponds to indicator light
It is bright.
Pressure reducing valve intelligent control circuit of the present invention and its control method, control and valve by controller
The switching of change-over switch is realized engine unlatching, flame-out and three kinds of states of work, is intelligently controlled using pressure reducing valve of the present invention
Circuit processed has the advantages that following several:
1, by the linkage of each relay and microswitch, engine oil or gas supply can easily be realized,
Phenomena such as ensuring that engine stabilizer is run, the risk of maloperation is greatly lowered, being not in air-fuel mixture supply；
2, every state instruction can be carried out by bi-colour LED；
3, controller is connected with machine oil alarm, can increase machine oil detection function and (when detecting lower than setting value, send out
Motivation auto extinguishing, and indicated by corresponding indicator light)；
4, controller is connected with AVR, and after normal operation certain time (generally 15S), controller delivers a signal to AVR,
Complete machine power supply is just provided.
Below in conjunction with drawings and the specific embodiments, the invention will be described in further detail.
Detailed description of the invention
Fig. 1 is the pressure reducing valve intelligent control circuit schematic diagram of the present embodiment.
Specific embodiment
As shown in Figure 1, a kind of pressure reducing valve intelligent control circuit, including controller 1, rectifier bridge 2, charge coil 3, starting are pressed
Button 10, valve change-over switch, and the first microswitch SM1, the second microswitch that are connected with valve change-over switch
SM2, third microswitch SM3, the 4th microswitch SM4, the third microswitch SM3 and the 4th microswitch SM4 are double
It is switched to selection.The charge coil 3 is connected after rectifier bridge 2, the 4th microswitch SM4 with storage battery 4.Bi-colour LED packet
Include red indicating light 6 and green indicator light 8.
In the present embodiment, the controller 1 includes single-chip computer and its peripheral circuit, has 12 ports, is respectively as follows:
LPG switch port, flameout switch port, AVR signal port, GAS switch port, machine oil alarm port, red light port, high pressure
Wrap port, green light port, storage battery port, LPG solenoid valve port, GAS solenoid valve port and ground wire port.Wherein, the control
The LPG switch port of device 1 is connected with the second microswitch SM2, for providing gas supply status signal；Flameout switch port and third
The end b of microswitch SM3 is connected, for providing engine status signal (shut down or run)；AVR signal port with
AVR14 is connected, and controls engine output voltage by AVR14；GAS switch port is connected with the first microswitch SM1, for mentioning
For oil condition signal；Machine oil alarm port is connected with machine oil alarm 5, for detecting machine oil alarm signal；Red light port
It is connected with red indicating light 6；High voltage package port is connected with the flame-out end of engine high pressure packet 7, for controlling engine misses；Green light
Port is connected with green indicator light 8, and storage battery port is connected with the end a of the 4th microswitch SM4, Energy Saving Control is used for, when starting
When machine is in flameout state, storage battery power supply is switched by the 4th microswitch SM4, realizes low energy consumption；LPG solenoid valve port with
LPG solenoid valve 13 is connected, for controlling the power on/off state of LPG solenoid valve 13；GAS solenoid valve port and carburetor electromagnetism
The positive terminal of valve 9 is connected, for controlling the power on/off state of carburetor electromagnetic valve 9；Ground wire port is connected with ground line.Hair
11 anode of motivation motor relay is connected with storage battery 4, and cathode is connected by fuse 12 with 10 one end of start button, start button
10 other end ground connection.Starting motor relay 11 can protect using fuse 12.
In the present embodiment, the carburetor electromagnetic valve 9 is for controlling carburetor oil inside offering, using normally open solenoid valve,
I.e. 9 no power of carburetor electromagnetic valve when open carburetor internal oil passages, after energization cut off carburetor internal oil passages.LPG solenoid valve
13 for controlling gas supply inside pressure reducing valve, is supplied inside pressure reducing valve using cutting off when normally closed solenoid valve, i.e. 13 no power of LPG solenoid valve
Gas opens gas supply inside pressure reducing valve after energization.
The control method of above-mentioned pressure reducing valve intelligent control circuit, including oil-feeding control step and gas supply rate-determining steps, specifically
Include:
Step 1: by the rotation of valve change-over switch, keeping the first microswitch SM1, the second microswitch SM2, third micro-
Dynamic switch SM3, the 4th microswitch SM4 follow linkage work, are engine oil or gas supply, when valve change-over switch rotates
When to " GAS " shelves, fuel feeding is selected, controller 1 controls carburetor electromagnetic valve 9 and the equal no power of LPG solenoid valve 13；
Step 1-1: when valve change-over switch is at " GAS ", the first microswitch SM1 triggering, the second microswitch SM2 is not
The end a-b of triggering, third microswitch SM3 is connected, and the end a-b of the 4th microswitch SM4 is connected, and the flame-out end of high voltage package 7 does not connect
Ground makes engine ignition, meanwhile, engine and carburetor solenoid valve 9 is in normally open because of no power, and engine starts to supply
Oil, red indicating light 6 is bright, and green indicator light 8 goes out；
Step 1-2: when start button 10 is closed, the first microswitch SM1 and the second microswitch SM2 are not triggered,
The end a-b of third microswitch SM3 is connected, and the end a-b of the 4th microswitch SM4 is connected, and starting motor relay 11 1 terminates
Storage battery, one end ground connection, is connected back, and starting motor relay 11 obtains electric closure, and starting-motor of engine is started to work, and red refers to
Show that lamp 6 is bright, green indicator light 8 goes out, and after the 15S that works well, controller 1 delivers a signal to AVR14, provides complete machine power supply, red
Indicator light 6 goes out, and green indicator light 8 is bright；
Step 1-3: when valve change-over switch is at " OFF ", the first microswitch SM1 and the second microswitch SM2 are not
The end a-c of triggering, third microswitch SM3 is connected, and the end a-c of the 4th microswitch SM4 is connected, the flame-out end ground connection of high voltage package,
Engine stop igniting, engine and carburetor solenoid valve 9 are powered, and oil circuit disconnects, engine stop fuel feeding, 6 He of red indicating light
Green indicator light 8 goes out；
Step 2: when valve change-over switch turns to " LPG " shelves, selection gas supply, controller 1 controls carburetor electromagnetic valve 9
It is powered with LPG solenoid valve 13, pressure reducing valve gas circuit conducting, oil circuit is closed, and carburetor electromagnetic valve 9 is powered, and thoroughly cuts off carburetor
Oil circuit prevents its internal fuel from participating in burning, leads to engine fluctuation of service；
Step 2-1: when valve change-over switch is at " LPG ", the first microswitch SM1 is not triggered, the second microswitch SM2
The end a-b of triggering, third microswitch SM3 is connected, and the end a-b of the 4th microswitch SM4 is connected, and the flame-out end of high voltage package 7 does not connect
Ground makes engine ignition, meanwhile, engine and carburetor solenoid valve 9 is in closed state, passes through LPG solenoid valve 13 because being powered
Start to supply for engine, red indicating light 6 is bright, and green indicator light 8 goes out；
Step 2-2: when start button 10 is closed, the first microswitch SM1 and the second microswitch SM2 are not triggered,
The end a-b of third microswitch SM3 and the 4th microswitch SM4 are connected, and starting motor relay 11 1 terminates storage battery, one end
Ground connection, is connected back, and starting motor relay 11 obtains electric closure, and starting motor is started to work, and red indicating light 6 is bright, and green refers to
Show that lamp 8 goes out, after the 15S that works well, controller 1 delivers a signal to AVR14, provides complete machine power supply, and red indicating light 6 goes out, green
Indicator light 8 is bright；
Step 2-3: when valve change-over switch is at " OFF ", the first microswitch SM1 and the second microswitch SM2 are not
The end a-c of triggering, third microswitch SM3 is connected, and the end a-c of the 4th microswitch SM4 is connected, the flame-out end ground connection of high voltage package,
Engine stop igniting makes 13 no power of LPG solenoid valve by controller, and gas circuit disconnects, engine stop gas supply, red instruction
Lamp 6 and green indicator light 8 go out.
Table 1 is pressure reducing valve intelligent control circuit under different conditions, each microswitch, carburetor electromagnetic valve 9, LPG electricity
The working condition of magnet valve 13.
Table 1: each microswitch, carburetor electromagnetic valve 9, LPG solenoid valve 13 working condition table
The pressure reducing valve intelligent control circuit and its control method of the present embodiment are turned by the control of controller 1 and valve
The switching of switch is changed, engine unlatching, flame-out and three kinds of states of work are realized, using pressure reducing valve intelligent control of the present invention
Circuit has the advantages that following several: 1, by the linkage of each relay and microswitch, can easily realize and start
Machine fuel feeding or gas supply, it is ensured that the risk of maloperation is greatly lowered in engine stabilizer operation, is not in air-fuel mixture supply etc.
Phenomenon；2, every state instruction can be carried out by indicator light；3, controller 1 is connected with machine oil alarm 5, can increase machine oil
Detection function (when detecting lower than setting value, engine auto extinguishing, and indicated by corresponding indicator light)；4, it controls
Device 1 is connected with AVR14, and after normal operation certain time (generally 15S), controller 1 delivers a signal to AVR14, just provides whole
Machine power supply.
Above-described embodiment and schema and non-limiting product form and style of the invention, any technical field it is common
The appropriate changes or modifications that technical staff does it all should be regarded as not departing from patent category of the invention.
Claims (9)
1. a kind of pressure reducing valve intelligent control circuit, it is characterised in that: pressed including controller, rectifier bridge, valve change-over switch, starting
Button and charge coil, wherein drive the work of 4 microswitches when the valve change-over switch rotates, the controller respectively with
LPG solenoid valve, the first microswitch, the second microswitch, third microswitch, the 4th microswitch, carburetor electromagnetic valve,
The flame-out end of AVR and high voltage package is connected, and charge coil is connected after rectifier bridge, the 4th microswitch with storage battery, start motor after
Electric appliance anode on the one hand is connected with storage battery, on the other hand pass through the 4th microswitch be connected with controller, the starting motor after
Electric appliance cathode is connected with start button, start button other end ground connection；The GAS switch terminals of first microswitch and controller
Mouth is connected, and for controlling fuel feeding, second microswitch is connected with the LPG switch port of controller, for controlling gas supply, institute
It states third microswitch to be connected with the flameout switch port of controller, start button, for controlling engine condition.
2. a kind of pressure reducing valve intelligent control circuit as described in claim 1, it is characterised in that: the controller further with machine
Oily alarm is connected.
3. a kind of pressure reducing valve intelligent control circuit as described in claim 1, it is characterised in that: the controller further connects
There is a bi-colour LED.
4. a kind of pressure reducing valve intelligent control circuit as described in claim 1, it is characterised in that: the controller uses single-chip microcontroller
Control.
5. a kind of pressure reducing valve intelligent control circuit as described in claim 1, it is characterised in that: the third microswitch and the
Four microswitches are two-way choice switch, have the fixed port a and the selectable port b and the port c.
6. a kind of pressure reducing valve intelligent control circuit as described in claim 1, it is characterised in that: the starting motor relay is negative
Pole is connected by fuse with start button.
7. a kind of pressure reducing valve intelligent control circuit as described in claim 1, it is characterised in that: the carburetor electromagnetic valve uses
Normally open solenoid valve.
8. a kind of pressure reducing valve intelligent control circuit as described in claim 1, it is characterised in that: the LPG solenoid valve is using normal
Close solenoid valve.
9. a kind of control method of pressure reducing valve intelligent control circuit as described in claim 1, it is characterised in that including fuel feeding control
Step processed and gas supply rate-determining steps, specifically include:
Step 1: by the rotation of valve change-over switch, making the first microswitch, the second microswitch, third microswitch,
Four microswitches follow linkage work, are engine oil or gas supply, when valve change-over switch turns to " GAS " shelves, choosing
Fuel feeding is selected, controller controls carburetor electromagnetic valve and the equal no power of LPG solenoid valve；
Step 1-1: when valve change-over switch turns to " GAS " state, the first microswitch triggering, the second microswitch is not touched
The end a-b of hair, third microswitch is connected, and the end a-b of the 4th microswitch is connected, and the flame-out end of high voltage package is earth-free, makes to start
Machine igniting, meanwhile, engine and carburetor solenoid valve is in normally open because of no power, and engine starts fuel feeding, corresponding instruction
Lamp is bright；
Step 1-2: when pressing start button, the first microswitch and the second microswitch are not triggered, third microswitch
The end a-b be connected, the end a-b of the 4th microswitch is connected, and starting motor relay one terminates storage battery, one end ground connection, starting electricity
Machine relay obtains electric closure, and starting-motor of engine is started to work, and corresponding indicator light is bright, after the setting time that works well, control
Device delivers a signal to AVR, provides complete machine power supply；
Step 1-3: when valve change-over switch is " OFF " state, the first microswitch and the second microswitch are not triggered, the
The end a-c of three microswitches is connected, and the end a-c of the 4th microswitch is connected, the flame-out end ground connection of high voltage package, engine stop point
Fire, engine and carburetor solenoid valves, oil circuit disconnect, and engine stop fuel feeding, it is bright that bi-colour LED corresponds to indicator light；
Step 2: when valve change-over switch turns to " LPG " shelves, selection gas supply, controller controls carburetor electromagnetic valve and LPG
Solenoid valve is powered, the conducting of pressure reducing valve gas circuit, oil circuit closure, and carburetor electromagnetic valve is powered, thoroughly cuts off carburetor oil circuit, prevent
Its internal fuel participates in burning, leads to engine fluctuation of service；
Step 2-1: when valve change-over switch is to " LPG ", the first microswitch is not triggered, the triggering of the second microswitch, third
The end a-b of microswitch is connected, and the end a-b of the 4th microswitch is connected, and there is signal at the flame-out end of high voltage package, makes engine ignition,
Meanwhile engine and carburetor solenoid valve is in closed state because being powered, and starts to supply for engine by solenoid valve, it is corresponding
Indicator light is bright；
Step 2-2: when pressing start button, the first microswitch and the second microswitch are not triggered, third microswitch
It is connected with the end a-b of the 4th microswitch, starting motor relay one terminates storage battery, and one end ground connection starts motor relay
Electric closure is obtained, starting motor is started to work, and corresponding indicator light is bright, and after the setting time that works well, controller is delivered a signal to
AVR provides complete machine power supply；
Step 2-3: when valve conversion switch arrives " OFF ", the first microswitch and the second microswitch are not triggered, and third is micro-
The end a-c of dynamic switch is connected, and the end a-c of the 4th microswitch is connected, and the flame-out end ground connection of high voltage package, engine stop igniting is led to
Crossing controller makes LPG solenoid valve no power, and gas circuit disconnects, and engine stop gas supply, it is bright that bi-colour LED corresponds to indicator light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610329214.2A CN105840324B (en) | 2016-05-18 | A kind of pressure reducing valve intelligent control circuit and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610329214.2A CN105840324B (en) | 2016-05-18 | A kind of pressure reducing valve intelligent control circuit and its control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105840324A CN105840324A (en) | 2016-08-10 |
| CN105840324B true CN105840324B (en) | 2019-07-16 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101200944B1 (en) * | 2011-06-08 | 2012-11-13 | 김선봉 | Controlling apparatus dual fuel supply for GDI engine |
| CN104863730A (en) * | 2015-05-15 | 2015-08-26 | 隆鑫通用动力股份有限公司 | Switching type fuel supply system, engine and generator unit |
| CN104863734A (en) * | 2015-05-15 | 2015-08-26 | 隆鑫通用动力股份有限公司 | Double-fuel-switching control circuit of non-stop engine |
| CN205779275U (en) * | 2016-05-18 | 2016-12-07 | 浙江康思特动力机械有限公司 | A kind of air relief valve intelligent control circuit |
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101200944B1 (en) * | 2011-06-08 | 2012-11-13 | 김선봉 | Controlling apparatus dual fuel supply for GDI engine |
| CN104863730A (en) * | 2015-05-15 | 2015-08-26 | 隆鑫通用动力股份有限公司 | Switching type fuel supply system, engine and generator unit |
| CN104863734A (en) * | 2015-05-15 | 2015-08-26 | 隆鑫通用动力股份有限公司 | Double-fuel-switching control circuit of non-stop engine |
| CN205779275U (en) * | 2016-05-18 | 2016-12-07 | 浙江康思特动力机械有限公司 | A kind of air relief valve intelligent control circuit |
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