CN104863730A - Switching type fuel supply system, engine and generator unit - Google Patents
Switching type fuel supply system, engine and generator unit Download PDFInfo
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- CN104863730A CN104863730A CN201510248981.6A CN201510248981A CN104863730A CN 104863730 A CN104863730 A CN 104863730A CN 201510248981 A CN201510248981 A CN 201510248981A CN 104863730 A CN104863730 A CN 104863730A
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Abstract
The invention discloses a switching type fuel supply system which comprises a gas electronic control valve, a fuel oil electronic control valve and a switching circuit. The gas electronic control valve is arranged on an engine gas input channel, the fuel oil electronic control valve is arranged on an engine fuel oil input channel, and the switching circuit is used for controlling the gas electronic control valve and the fuel oil electronic control valve to be opened and closed. Through the electronic control valves on the fuel oil channel and the gas channel, a switching switch is used for control, the switching type fuel supply system is used for an engine, fuel can be freely switched under the situation that the engine does not stop, the switching type fuel supply system is convenient to use, the engine is prevented from being started and stopped frequently in the fuel switching process, and the service life of the engine is guaranteed. The system is used for double fuel switching and multi-fuel switching, and has good adaptability.
Description
Technical field
The present invention relates to a kind of generator set and accessory, particularly a kind of switching type fuel system, motor and generator set.
Background technique
Duel fuel engine, owing to adopting selectable two kinds of fuel, has stronger adaptability and environmental-protecting performance, therefore, obtains applying comparatively widely; When existing duel fuel engine in use carries out Fuel switching; manual, electronic mode is adopted to carry out; need after motor shutdown; close the fuel oil in original use or fuel gas supply path; and then open the supply passage of combustion gas or fuel oil, restart motor, this mode uses extremely inconvenience; and shutdown startup impacts motor frequently, affects the working life of motor.
Therefore; need existing motor switching type fuel system to improve, in the non-stop-machine situation of motor, freely can complete the switching of fuel, easy to use; avoid frequent start-stop motor in the process switching fuel, ensure the working life of motor.
Summary of the invention
In view of this, the invention provides a kind of switching type fuel system, for motor; the switching of fuel freely can be completed in the non-stop-machine situation of motor; easy to use, avoid frequent start-stop motor in the process switching fuel, ensure the working life of motor.
Switching type fuel system of the present invention, comprising the combustion gas electrically-controlled valve be arranged in engine gas input channel, being arranged on the fuel oil electrically-controlled valve in engine fuel input channel and the change-over circuit for controlling combustion gas electrically-controlled valve and the keying of fuel oil electrically-controlled valve; The mode of employing combustion gas electrically-controlled valve and fuel oil electrically-controlled valve realizes the switching between double fuel, is quick on the draw, and switches rapidly, can ensure the supply of fuel, thus ensures not shut down realization switching; Combustion gas electrically-controlled valve of the present invention and fuel oil electrically-controlled valve are only and refer to, and uninevitable employing fuel-firing gas-firing, as raw material, also can comprise between biofuel and combustion gas or between fuel oil and form double fuel, not repeat them here; Change-over circuit can adopt general hand switch, motor switch or directly by ECU formation control.
Further, described change-over circuit at least comprises for the throw over switch by driving power selectivity access combustion gas electrically-controlled valve or fuel oil electrically-controlled valve; Utilize throw over switch to be formed to switch, structure is simple, and cost is lower.
Further, also comprise the startup control switch controlling engine start or stopping, driving power is accessed combustion gas electrically-controlled valve or fuel oil electrically-controlled valve by throw over switch selectivity at engine start with when running by described startup control switch, when engine stop, driving power is cut off, thus close combustion gas electrically-controlled valve and fuel oil electrically-controlled valve; Utilize and start control switch and form chain control to throw over switch, ensure that the keying and being formed between operation with throw over switch of motor associate, the conformity that the switching of guarantee two kinds of fuel and motor open and close and run, ensure that the normal operation of motor.
Further, before described combustion gas electrically-controlled valve is connected to the LPG reduction valve of engine gas input channel, be beneficial to the stationarity of the combustion gas ensureing input motor.
Further, described startup control switch has the flame-out port of ground connection and starts control switch is connected to motor spark coil by throw over switch, described fuel oil electrically-controlled valve is connected motor and to be run and when need stop, the flame-out port starting control switch, successively by starting control switch, throw over switch connectivity points fire coil, starting control switch and cutting off driving power; When startup control switch is positioned at engine start and running state, starts the flame-out port of control switch disconnection and also driving power be communicated to throw over switch and access combustion gas electrically-controlled valve or fuel oil electrically-controlled valve by throw over switch selectivity; The flame-out general ground connection of port, for structure of stopping working; Above-mentioned startup control switch can adopt existing contact switch to realize its function, is integrated in same switch, and carries out choice for use as required, do not repeat them here by stopping, start-up and operation; Certainly, also realize automatically controlling by ECU.
Further, described combustion gas electrically-controlled valve is connected motor and to be run and when need stop, start control switch and cut off driving power, disconnect the mode of driving power by means of only enable switch, combustion gas electrically-controlled valve can be closed, disconnect air inlet, because electromagnetic coil is not connected with flame-out port, therefore, spark coil continues igniting, motor can continue the remaining inflammable gas of after-flame, to ensure safety.
Further, described combustion gas electrically-controlled valve and fuel oil electrically-controlled valve are normally closed solenoid valve, are easy to control, and have good sensitivity.
Further, described throw over switch comprises switch I and switch II, and described switch I is for selectivity access combustion gas electrically-controlled valve or fuel oil electrically-controlled valve, and switch II is for being communicated with or cut-off point fire coil.
Further, interlock is formed between described switch I and switch II; As shown in the figure, described switch I comprises two stationary contacts and a movable contact DN2, wherein stationary contact N1 is connected with the control circuit of fuel oil electrically-controlled valve, and stationary contact N2 is connected with the control circuit of combustion gas electrically-controlled valve, and movable contact DN1 optionally contacts with stationary contact N2 with stationary contact N1 and is electrically connected; Switch II comprises stationary contact N3 and movable contact DN2, and described stationary contact N3 is connected to the spark coil of motor, and described movable contact DN2 is electrically connected on flame-out port (ground connection) by starting control switch; Between switch I and switch II, formation interlock and movable contact DN2 and movable contact DN1 form linkage structure; Start control switch and comprise point of contact FS, point of contact IG, point of contact ST, point of contact BA and point of contact E, described point of contact FS is connected with movable contact DN1 as power supply output point, described point of contact IG is connected with movable contact DN2 as flame-out tie point, point of contact ST is connected with engine primer control circuit, point of contact BA is connected with power output end, and point of contact E connects flame-out port (ground connection); Adopt throw over switch and the startup control switch of above-mentioned contact structure, more simplified structure, is easy to operation and cost is lower; Comparatively reasonably form interlock, chain, open and close to reach expected motor and mate with dual-fuel the effect that links in running, being beneficial to engine weight and the volume of reduction.
The invention also discloses a kind of motor with switching type fuel system, the switching type fuel system described in described motor adopts.
The invention also discloses a kind of generator set, the motor with switching type fuel system described in generator set adopts.
Beneficial effect of the present invention: switching type fuel system of the present invention, motor and generator set, adopt the structure that electrically-controlled valve is set on fuel oil and blast tube, and utilize throw over switch to control, for motor, the switching of fuel freely can be completed in the non-stop-machine situation of motor, easy to use, avoid frequent start-stop motor in the process switching fuel, ensure the working life of motor; Native system not only switches for double fuel, also can be used for multi fuel and switches, have good adaptability.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is structural representation of the present invention;
Fig. 2 is circuit theory diagrams of the present invention.
Embodiment
Fig. 1 is structural representation of the present invention, Fig. 2 is circuit theory diagrams of the present invention, as shown in the figure: the switching type fuel system of the present embodiment, comprising the combustion gas electrically-controlled valve 1 be arranged in motor 5 combustion gas input channel 2, being arranged on the fuel oil electrically-controlled valve 7 in motor 5 fuel oil input channel 12 and the change-over circuit for controlling combustion gas electrically-controlled valve 1 and fuel oil electrically-controlled valve 7 keying; Combustion gas input channel 2 and fuel oil input channel 12 are all communicated in Carburetor 4, belong to existing structure; The mode of employing combustion gas electrically-controlled valve 1 and fuel oil electrically-controlled valve 7 realizes the switching between double fuel, is quick on the draw, switches rapidly, can ensure the supply of fuel, thus ensures not shut down realization switching; Combustion gas electrically-controlled valve 1 of the present invention and fuel oil electrically-controlled valve 7 are only and refer to, and uninevitable employing fuel-firing gas-firing, as raw material, also can comprise between biofuel and combustion gas or between fuel oil and form double fuel, not repeat them here; Change-over circuit can adopt general hand switch, motor switch or directly by ECU formation control.
In the present embodiment, described change-over circuit at least comprises for the throw over switch 13 by driving power 11 selectivity access combustion gas electrically-controlled valve 1 or fuel oil electrically-controlled valve 7; Utilize throw over switch 13 to be formed to switch, structure is simple, and cost is lower; Driving power 11 is the driving power of combustion gas electrically-controlled valve 1 and fuel oil electrically-controlled valve 7, generally adopts storage battery, does not repeat them here.
In the present embodiment, also comprise the startup control switch 10 controlling motor 5 and start or stop, driving power 11 is accessed combustion gas electrically-controlled valve 1 or fuel oil electrically-controlled valve 7 by throw over switch 13 selectivity when motor 5 start-up and operation by described startup control switch 10, when motor 5 stops, driving power 11 is cut off, thus close combustion gas electrically-controlled valve 1 and fuel oil electrically-controlled valve 7; Utilize and start control switch and form chain control to throw over switch, ensure that the keying and being formed between operation with throw over switch of motor associate, the conformity that the switching of guarantee two kinds of fuel and motor open and close and run, ensure that the normal operation of motor.
In the present embodiment, before described combustion gas electrically-controlled valve 1 is connected to the LPG reduction valve 3 of engine gas input channel 2, be beneficial to the stationarity of the combustion gas ensureing input motor.
In the present embodiment, described startup control switch 10 has the flame-out port 9 of ground connection and starts control switch 10 is connected to motor 5 spark coil by throw over switch 13, described fuel oil electrically-controlled valve 7 connects motor 5 when running and need stop, the flame-out port 9 starting control switch 10, successively by starting control switch 10, throw over switch 13 connectivity points fire coil, starting control switch 10 and cutting off driving power; When startup control switch 10 is positioned at motor 5 start-up and operation state, starts the flame-out port of control switch 10 disconnection and also driving power be communicated to throw over switch 13 and access combustion gas electrically-controlled valve or fuel oil electrically-controlled valve by throw over switch 13 selectivity; The general ground connection of flame-out port 9, for structure of stopping working; Above-mentioned startup control switch 10 can adopt existing contact switch to realize its function, is integrated in same switch, and carries out choice for use as required, do not repeat them here by closedown, start-up and operation; Certainly, also realize automatically controlling by ECU.
In the present embodiment; described combustion gas electrically-controlled valve 1 connects motor 5 when running and need stop; start control switch 10 and cut off driving power, by means of only enable switch disconnect driving power instead of to the combustion gas halt mode of structure of stopping working, combustion gas electrically-controlled valve 1 can be closed; disconnect air inlet; because electromagnetic coil is not connected with flame-out port, therefore, spark coil continues igniting; motor can continue the remaining inflammable gas of after-flame, to ensure safety.
In the present embodiment, described combustion gas electrically-controlled valve 1 and fuel oil electrically-controlled valve 7 are normally closed solenoid valve, are easy to control, and have good sensitivity.
In the present embodiment, described throw over switch comprises switch I and switch II, and described switch I is for selectivity access combustion gas electrically-controlled valve or fuel oil electrically-controlled valve, and switch II is for being communicated with or cut-off point fire coil.
In the present embodiment, between described switch I and switch II, form interlock; As shown in the figure, described switch I comprises two stationary contacts and a movable contact DN2, wherein stationary contact N1 is connected with the control circuit of fuel oil electrically-controlled valve, and stationary contact N2 is connected with the control circuit of combustion gas electrically-controlled valve, and movable contact DN1 optionally contacts with stationary contact N2 with stationary contact N1 and is electrically connected; Switch II comprises stationary contact N3 and movable contact DN2, and described stationary contact N3 is connected to the spark coil of motor, and described movable contact DN2 is electrically connected on flame-out port (ground connection) by starting control switch; Between switch I and switch II, formation interlock and movable contact DN2 and movable contact DN1 form linkage structure; Start control switch and comprise point of contact FS, point of contact IG, point of contact ST, point of contact BA and point of contact E, described point of contact FS is connected with movable contact DN1 as power supply output point, described point of contact IG is connected with movable contact DN2 as flame-out tie point, point of contact ST is connected with engine primer control circuit, point of contact BA is connected with power output end, and point of contact E connects flame-out port (ground connection);
Said structure is in use:
A, normally operation: when Fuel switching is combustion gas, movable contact DN1 is connected to stationary contact N2, movable contact DN2 is connected with stationary contact N4 (vacant), when switching to fuel oil, movable contact DN1 and DN2 links, movable contact DN1 is connected to stationary contact N1, and now movable contact DN2 is connected to stationary contact N3;
B, need shut down time: fuel oil run and need shut down time, the point of contact IG starting control switch is connected with point of contact E, disconnect driving power simultaneously, close fuel solenoid valve, thus form the short circuit path of engine igniting coil, stationary contact N3, movable contact DN2, point of contact IG and point of contact E, make spark coil short circuit, thus kill engine; Combustion gas runs and takes, start control switch disconnect driving power, close gas electromagnetic valve, thus in system the residual combustion gases afterburnt kill engine; Start control switch to be controlled by controller, the such as ECU etc. of engine controller, automobile, certainly, starting control switch also can by Non-follow control, and to start control switch be existing structure, and not in this to go forth;
When c, engine start: point of contact BA and point of contact ST and point of contact FS is connected to form igniting path, thus ato unit, now, movable contact DN1 alternative electrical connection contact stationary contact N1 or stationary contact N2.
Adopt throw over switch and the startup control switch of above-mentioned contact structure, more simplified structure, is easy to operation and cost is lower; Comparatively reasonably form interlock, chain, open and close to reach expected motor and mate with dual-fuel the effect that links in running, being beneficial to engine weight and the volume of reduction.
The invention also discloses a kind of motor with switching type fuel system, the switching type fuel system described in described motor adopts.
The invention also discloses a kind of generator set, the motor with switching type fuel system described in generator set adopts
What finally illustrate is, above embodiment is only in order to illustrate technological scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technological scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (10)
1. a switching type fuel system, is characterized in that: comprising the combustion gas electrically-controlled valve be arranged in engine gas input channel, being arranged on the fuel oil electrically-controlled valve in engine fuel input channel and the change-over circuit for controlling combustion gas electrically-controlled valve and the keying of fuel oil electrically-controlled valve.
2. switching type fuel system according to claim 1, is characterized in that: described change-over circuit at least comprises for the throw over switch by driving power selectivity access combustion gas electrically-controlled valve or fuel oil electrically-controlled valve.
3. switching type fuel system according to claim 2, it is characterized in that: also comprise the startup control switch controlling engine start or stopping, driving power is accessed combustion gas electrically-controlled valve or fuel oil electrically-controlled valve by throw over switch selectivity at engine start with when running by described startup control switch, is cut off by driving power when engine stop.
4. switching type fuel system according to claim 1, is characterized in that: before described combustion gas electrically-controlled valve is connected to the LPG reduction valve of engine gas input channel.
5. switching type fuel system according to claim 3, it is characterized in that: described startup control switch has the flame-out port of ground connection and starts control switch is connected to motor spark coil by throw over switch, described fuel oil electrically-controlled valve is connected motor and is run and when need stop, starting the flame-out port of control switch successively by starting control switch, throw over switch connectivity points fire coil; When startup control switch is positioned at engine start and running state, starts the flame-out port of control switch disconnection and also driving power be communicated to throw over switch and access combustion gas electrically-controlled valve or fuel oil electrically-controlled valve by throw over switch selectivity.
6. switching type fuel system according to claim 5, is characterized in that: when described combustion gas electrically-controlled valve is connected motor operation and needs to stop, starting control switch and cut off driving power.
7. switching type fuel system according to claim 6, it is characterized in that: described throw over switch comprises switch I and switch II, described switch I is for selectivity access combustion gas electrically-controlled valve or fuel oil electrically-controlled valve, and switch II is for being communicated with or cut-off point fire coil.
8. switching type fuel system according to claim 7, is characterized in that: form interlock between described switch I and switch II; Combustion gas electrically-controlled valve and fuel oil electrically-controlled valve are normally closed solenoid valve.
9. there is a motor for switching type fuel system, it is characterized in that: described motor adopts the switching type fuel system of the arbitrary claim of claim 1 to 8.
10. a generator set, is characterized in that: generator set adopts the motor with switching type fuel system according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510248981.6A CN104863730B (en) | 2015-05-15 | 2015-05-15 | Suitching type fuel system, engine and generating set |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510248981.6A CN104863730B (en) | 2015-05-15 | 2015-05-15 | Suitching type fuel system, engine and generating set |
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| Publication Number | Publication Date |
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| CN104863730A true CN104863730A (en) | 2015-08-26 |
| CN104863730B CN104863730B (en) | 2018-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510248981.6A Active CN104863730B (en) | 2015-05-15 | 2015-05-15 | Suitching type fuel system, engine and generating set |
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| CN (1) | CN104863730B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105840324A (en) * | 2016-05-18 | 2016-08-10 | 浙江康思特动力机械有限公司 | Intelligent control circuit of pressure reducing valve and control method thereof |
| CN105863884A (en) * | 2016-05-18 | 2016-08-17 | 浙江康思特动力机械有限公司 | Pressure reducing valve control circuit and control method thereof |
| CN109681334A (en) * | 2018-11-02 | 2019-04-26 | 浙江吉利新能源商用车有限公司 | Control method, device and the vehicle of dual fuel engine start and stop |
| CN105840324B (en) * | 2016-05-18 | 2019-07-16 | 浙江康思特动力机械有限公司 | A kind of pressure reducing valve intelligent control circuit and its control method |
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| CN105863884B (en) * | 2016-05-18 | 2018-07-03 | 浙江康思特动力机械有限公司 | A kind of decompression valve controling circuit and its control method |
| CN105840324B (en) * | 2016-05-18 | 2019-07-16 | 浙江康思特动力机械有限公司 | A kind of pressure reducing valve intelligent control circuit and its control method |
| CN109681334A (en) * | 2018-11-02 | 2019-04-26 | 浙江吉利新能源商用车有限公司 | Control method, device and the vehicle of dual fuel engine start and stop |
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|---|---|
| CN104863730B (en) | 2018-07-27 |
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