CN105041488A - Automobile gasoline and natural gas dual-fuel supply system - Google Patents
Automobile gasoline and natural gas dual-fuel supply system Download PDFInfo
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- CN105041488A CN105041488A CN201510400447.2A CN201510400447A CN105041488A CN 105041488 A CN105041488 A CN 105041488A CN 201510400447 A CN201510400447 A CN 201510400447A CN 105041488 A CN105041488 A CN 105041488A
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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Abstract
The embodiment of the invention discloses an automobile gasoline and natural gas dual-fuel supply system. The automobile gasoline and natural gas dual-fuel supply system comprises an ECU control unit, a diverter switch, a gasoline storage box, a gasoline pump, an oil level sensor, a first pressure valve, a gasoline pipeline, a gasoline filter, a gas storage bottle, a pressure sensor, a combination valve, a natural gas pipeline, a pressure reducer, a low-pressure filter, a dual-pressure sensor, an engine, an intake manifold, an ejector assembly, a temperature sensor, an intake pressure sensor, a rotating speed sensor and an oxygen sensor. According to the automobile gasoline and natural gas dual-fuel supply system, the ECU control unit controls an integrated electric control ejector according to received signals, and the automobile gasoline and natural gas dual-fuel supply system can adapt to selection switching of gasoline fuel and natural gas fuel.
Description
Technical field:
The present invention relates to a kind of Double-fuel supply system, especially automobile gasoline, natural gas double-fuel supply system.
Background technique:
Along with the concern to vehicle economy and alternative fuel Economy, the feature of environmental protection, automaker and Market for refitting turn to more economically, Cleaning Equipment, to raise the efficiency and energy-conserving and environment-protective, so effective use of alternative fuel or dual-purpose fuel or pluralities of fuel, need the distinct configuration of traditional fuel engine components.
Use for the used in combination of adaptation multi fuel or selection switch, the double fuel of repacking or production or the economic environmentally friendly vehicle of multi fuel, need provide a set of control system that can realize Double-fuel and supply, therefore the present invention is formed.
Summary of the invention:
For adapting to multi fuel or dual-fuel selection switching use, embodiments provide a kind of automobile gasoline, natural gas double-fuel supply system.
A kind of automobile gasoline, natural gas double-fuel supply system, comprising:
ECU control unit;
Diverter switch, is connected with ECU control unit, for providing Fuel switching signal to ECU control unit and for the gas fuel pressure signal display rock gas tolerance in the air cylinder that obtains according to ECU control unit;
Gasoline carrier, for storing gasoline;
Petrol pump, is located in gasoline carrier, and its signal input part is electrically connected with the output terminal of ECU control unit, is controlled by ECU control unit;
Fuel level sensor, is located in gasoline carrier, sends to ECU control unit for the oil level signal that obtains in gasoline carrier;
First pressure valve, is located in gasoline carrier, and it is connected with gasoline delivery side of pump;
Gasoline line, its one end is connected with the first pressure valve;
Gasoline separator, it is located on gasoline line, for filtering gasoline;
Air cylinder, for storing gas fuel;
Pressure transducer, is located in air cylinder, for obtaining the pressure signal of the gas fuel in air cylinder and being sent to ECU control unit;
Combination brake switch and proporting, it is connected with air cylinder;
Gas pipeline, its one end is connected with combination brake switch and proporting;
Decompressor, it is located on gas pipeline, for high-pressure natural gas fuel is decompressed to force value needed for engine operation;
Low-pressure filter, it establishes on gas pipeline, for filtering gas fuel;
Dual pressure sensor, is located on gas pipeline, comprises pressure transducer and pressure switch, and pressure transducer is for obtaining the pressure signal of gas pipeline and being sent to ECU control unit; Pressure switch is used at gas pipeline pressure lower than during setting value, signal being sent to ECU control unit and disconnect gas pipeline under the control of ECU control unit;
Motor;
Intake manifold, is connected with the cylinder of motor;
Sparger assembly, it comprises integral type electrically controlled injector, and it is connected with the other end of gasoline line and gas pipeline, and its signal input part is electrically connected with the output terminal of ECU control unit, according to the control signal of ECU control unit, gasoline or gas fuel are selected to spurt into motor;
Temperature transducer, for obtaining the temperature signal of motor or engine coolant temperature signal and being sent to ECU control unit;
Air inlet pressure sensor, also sends to ECU control unit for the mixed pressure force signal obtained in intake manifold;
Speed probe, for obtaining the tach signal of motor and being sent to ECU control unit;
Lambda sensor, is sent to ECU control unit for the oxygen content signal that obtains in outlet pipe;
When the temperature signal of the motor that described temperature transducer obtains or engine coolant temperature signal reach setting value, ECU control unit controls sparger assembly by gas fuel supply engine, and motor starts with gas fuel;
Motor drives in operation process with gas fuel, when the pressure signal of the gas pipeline that the described pressure transducer of dual pressure sensor obtains is lower than setting value, described pressure switch disconnects gas pipeline, ECU control unit control petrol pump and sparger assembly are by Fuel Petroleum supply engine, and motor drives running with Fuel Petroleum;
Motor drives in operation process with gas fuel, when mixed pressure force signal in the intake manifold that the engine rotational speed signal that described speed probe obtains and air inlet pressure sensor obtain reaches setting value, ECU control unit control petrol pump and sparger assembly are by Fuel Petroleum supply engine, and motor drives running with Fuel Petroleum.
The embodiment of the present invention, ECU control unit is according to the SC sigmal control integral type electrically controlled injector received, and the selection that can adapt to Fuel Petroleum and gas fuel switches and uses.
Accompanying drawing illustrates:
In order to be illustrated more clearly in the technological scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of automobile gasoline of the present invention, natural gas double-fuel supply system;
Fig. 2 is the structure cut-away view of the first embodiment of integral type electrically controlled injector of the present invention;
Fig. 3 is the structure cut-away view of the second embodiment of integral type electrically controlled injector of the present invention;
Fig. 4 is the structure cut-away view of the 3rd embodiment of integral type electrically controlled injector of the present invention.
Embodiment:
In order to make technical problem solved by the invention, technological scheme and beneficial effect clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Embodiment one: as shown in Figure 1,
A kind of automobile gasoline, natural gas double-fuel supply system, comprising:
ECU control unit 101;
Diverter switch 102, is connected with ECU control unit 101, for providing Fuel switching signal to ECU control unit 101 and for the gas fuel pressure signal display rock gas tolerance in the air cylinder that obtains according to ECU control unit 101;
Gasoline carrier 103, for storing gasoline;
Petrol pump 1031, be located in gasoline carrier 103, its signal input part is electrically connected with the output terminal of ECU control unit 101, is controlled by ECU control unit 101;
Fuel level sensor 1032, is located in gasoline carrier 103, sends to ECU control unit 101 for the oil level signal that obtains in gasoline carrier 103;
First pressure valve 1033, be located in gasoline carrier 103, it is connected with the output terminal of petrol pump 1031;
Gasoline line 104, its one end is connected with the first pressure valve 1033;
Gasoline separator 1041, it is located on gasoline line 104, for filtering gasoline;
Air cylinder 105, for storing gas fuel;
Pressure transducer 1051, is located in air cylinder 105, for obtaining the pressure signal of the gas fuel in air cylinder 105 and being sent to ECU control unit 101;
Combination brake switch and proporting 1052, it is connected with air cylinder 105;
Gas pipeline 106, its one end is connected with combination brake switch and proporting 1052;
Decompressor 1061, it is located on gas pipeline 106, for high-pressure natural gas fuel is decompressed to force value needed for engine operation;
Low-pressure filter 1062, it establishes on gas pipeline 106, for filtering gas fuel;
Dual pressure sensor 1063, is located on gas pipeline 106, comprises pressure transducer and pressure switch, and pressure transducer is for obtaining the pressure signal of gas pipeline 106 and being sent to ECU control unit 101; Pressure switch is used at gas pipeline 106 pressure lower than during setting value, signal being sent to ECU control unit 101 and disconnect gas pipeline 106 under the control of ECU control unit 101;
Motor 107;
Intake manifold 108, is connected with the cylinder of motor 107;
Sparger assembly 109, it comprises integral type electrically controlled injector, it is connected with the other end of gasoline line 104 and gas pipeline 106, its signal input part is electrically connected with the output terminal of ECU control unit 101, according to the control signal of ECU control unit 101, gasoline or gas fuel are selected to spurt into motor 107;
Temperature transducer 120, for obtaining the temperature signal of motor 107 or engine coolant temperature signal and being sent to ECU control unit 101;
Air inlet pressure sensor 130, also sends to ECU control unit 101 for the mixed pressure force signal obtained in intake manifold 108;
Speed probe 140, for obtaining the tach signal of motor 107 and being sent to ECU control unit 101;
Lambda sensor 150, is sent to ECU control unit 101 for the oxygen content signal that obtains in outlet pipe;
When the temperature signal of the motor 107 that described temperature transducer 120 obtains or engine coolant temperature signal reach setting value, ECU control unit 101 controls sparger assembly 109 by gas fuel supply engine 107, and motor 107 starts with gas fuel;
Motor 107 drives in operation process with gas fuel, when the pressure signal of the gas pipeline 106 that the described pressure transducer of dual pressure sensor 1063 obtains is lower than setting value, described pressure switch disconnects gas pipeline 106, ECU control unit 101 controls petrol pump 1031 and sparger assembly 109 by Fuel Petroleum supply engine 107, and motor 107 drives running with Fuel Petroleum;
Motor 107 drives in operation process with gas fuel, when mixed pressure force signal in the intake manifold 108 that the engine rotational speed signal that described speed probe 140 obtains and air inlet pressure sensor 130 obtain reaches setting value, ECU control unit 101 controls petrol pump 1031 and sparger assembly 109 by Fuel Petroleum supply engine 107, motor 107 drives running, to meet highest speed and the best power source of motor 107 with Fuel Petroleum
The embodiment of the present invention, ECU control unit is according to the SC sigmal control integral type electrically controlled injector received, and the selection that can adapt to Fuel Petroleum and gas fuel switches and uses.
Further, described integral type electrically controlled injector is installed in intake manifold 108 or in the cylinder head of motor 107.
Again further, described gas pipeline is provided with heating equipment, and the gas fuel that this heating equipment is used in gas pipeline heats gas fuel lower than during setting value.
Further, as shown in Figure 2, described integral type electrically controlled injector, comprises injector body, and this injector body is provided with:
Gas fuel entrance 11, for being connected with described gas pipeline 106;
Fuel Petroleum entrance 12, is set up in parallel with gas fuel entrance 11, for being connected with described gasoline line 104;
First valve pocket 21, is communicated with gas fuel entrance 11;
Second valve pocket 22, is communicated with Fuel Petroleum entrance 12;
Fuel ejiction opening 3, is communicated with the second valve pocket 22 with the first valve pocket 21;
Gas fuel injection control valve, is located at the first valve pocket 21, for controlling being communicated with or cut-off of the first valve pocket 21 and fuel ejiction opening 3 under the control of ECU control unit 101;
Fuel Petroleum injection control valve, is located at the second valve pocket 22, for controlling being communicated with or cut-off of the second valve pocket 22 and fuel ejiction opening 3 under the control of ECU control unit 101.
The integral type electrically controlled injector of the embodiment of the present invention, its structure is simple, easy for installation, realizes the smooth and easy switching between fuel by gas fuel injection control valve or Fuel Petroleum injection control valve; Secondly, it directly can be replaced former car sparger and be installed on former car sparger position, can reach best spray angle, reduces oil consumption; In addition, oil film deposition can not be produced and cover.
Further, described fuel ejiction opening 3 is provided with the first ejection passage 31 and the second ejection passage 32, first ejection passage 31 is communicated with the first valve pocket 21, second ejection passage 32 is communicated with the second valve pocket 22, first ejection passage 31 and the second ejection passage 32 are in being parallel to each other near fuel ejiction opening 3 position, and injection direction is identical.
Again further, described gas fuel injection control valve comprises:
First valve seat 41, it to be installed in the first valve pocket 21 and near gas fuel entrance 11, this first valve seat 41 is in T shape, there is a located lateral portion and a downward opening longitudinal direction is socketed guide portion, wherein, located lateral portion offers the fuel pod apertures running through itself, and fuel pod apertures is positioned at the periphery of longitudinally socket guide portion;
First movable body 51, its one end is located at and is longitudinally socketed in guide portion;
First electromagnetic coil 61, is located at the periphery of the first valve pocket 21, and relative with the first movable body 51;
First elastic component 71, is located at and is longitudinally socketed in guide portion, and offset with the located lateral portion of the first movable body 51 and the first valve seat 41 respectively;
First needle-valve 81, is installed in the first valve pocket 21, and sprays between passage 31 in the first movable body 51 and first, and it is connected with the other end of the first movable body 51 and can moves up and down;
When described first electromagnetic coil 61 is energized, the active force that the magnetic force that first electromagnetic coil 61 is energized generation drives the first movable body 51 to overcome the first elastic component 71 is longitudinally socketed guide portion and moves up, make the first needle-valve 81 follow the first movable body 51 move from bottom to top and depart from the first ejection passage 31, now the first valve pocket 21 is communicated with fuel ejiction opening 3 by the first ejection passage 31, realizes the injection of gas fuel; During described first electromagnetic coil 61 power-off, first movable body 51 is longitudinally socketed guide portion and moves down under the reset response power of the first elastic component 71, make the first needle-valve 81 follow the first movable body 51 move from top to bottom and be tight against the first ejection passage 31, now the first valve pocket 21 ends with fuel ejiction opening 3 phase, thus stops the injection of gas fuel.
Further, described Fuel Petroleum injection control valve comprises:
Second valve seat 42, it is installed on the medium position of the second valve pocket 22, this second valve seat 42 is in T shape, there is a located lateral portion and a downward opening longitudinal direction is socketed guide portion, wherein, located lateral portion offers the fuel pod apertures running through itself, and fuel pod apertures is positioned at the periphery of longitudinally socket guide portion;
Second movable body 52, its one end is located at and is longitudinally socketed in guide portion;
Second electromagnetic coil 62, is located at the periphery of the second valve pocket 22, and relative with the second movable body 52;
Second elastic component 72, is located at and is longitudinally socketed in guide portion, and offset with the located lateral portion of the second movable body 52 and the second valve seat 42 respectively;
Second needle-valve 82, is installed in the second valve pocket 22, and sprays between passage 32 in the second movable body 52 and second, and it is connected with the other end of the second movable body 52 and can moves up and down;
When described second electromagnetic coil 62 is energized, the active force that the magnetic force that second electromagnetic coil 62 is energized generation drives the second movable body 52 to overcome the second elastic component 72 is longitudinally socketed guide portion and moves up, make the second needle-valve 82 follow the second movable body 52 move from bottom to top and depart from the second ejection passage 32, now the second valve pocket 22 is communicated with fuel ejiction opening 3 by the second ejection passage 32, realizes the injection of Fuel Petroleum; During described second electromagnetic coil 62 power-off, second movable body 52 is longitudinally socketed guide portion and moves down under the reset response power of the second elastic component 72, make the second needle-valve 82 follow the second movable body 52 move from top to bottom and be tight against the second ejection passage 32, now the second valve pocket 22 ends with fuel ejiction opening 3 phase, thus stops the injection of Fuel Petroleum.
Again further, described Fuel Petroleum entrance 12 and fuel ejiction opening 3 periphery offer circular groove respectively, and circular groove is respectively equipped with seal ring.
Again further, described Fuel Petroleum entrance 12 place is provided with filter screen.
Further, the periphery of described gas fuel entrance 11 is convexly equipped with can match with the internal surface of described gas pipeline 106 some by little gradually large anticreep positioning ring 111.
Embodiment two: as shown in Figure 3, be with embodiment one difference, described gas fuel entrance 11 place is provided with the convenient fast-type joint be connected with described gas pipeline 106, this fast-type joint comprises one and offers threaded locking auxiliary section 92 and by little gradually large tapered plugging portion 91, the periphery be positioned at below tapered plugging portion 91 and to be located on described gas pipeline 106 and the nut 93 that can match with locking auxiliary section 92, wherein, annular groove 94 is provided with between described tapered plugging portion 91 and locking auxiliary section 92.
Embodiment three: as shown in Figure 4, be with embodiment one difference, described gas fuel entrance 11 place is provided with the convenient collar joint be connected with described gas pipeline 106, this collar joint comprise periphery offer threaded locking auxiliary section 110, be located on described gas pipeline 106 and the nut 113 that can match with locking auxiliary section 110 and being located at lock between auxiliary section 110 and nut 113 have through hole and by Tapered Cup 111 gradually little greatly and ring washer 112.
Be one or more mode of executions provided in conjunction with particular content as mentioned above, do not assert that specific embodiment of the invention is confined to these explanations.Method all and of the present invention, structure etc. are approximate, identical, or for making some technology deduction or replace under concept thereof of the present invention, all should be considered as protection scope of the present invention.
Claims (10)
1. automobile gasoline, a natural gas double-fuel supply system, is characterized in that, comprising:
ECU control unit;
Diverter switch, is connected with ECU control unit, for providing Fuel switching signal to ECU control unit and for the gas fuel pressure signal display rock gas tolerance in the air cylinder that obtains according to ECU control unit;
Gasoline carrier, for storing gasoline;
Petrol pump, is located in gasoline carrier, and its signal input part is electrically connected with the output terminal of ECU control unit, is controlled by ECU control unit;
Fuel level sensor, is located in gasoline carrier, sends to ECU control unit for the oil level signal that obtains in gasoline carrier;
First pressure valve, is located in gasoline carrier, and it is connected with gasoline delivery side of pump;
Gasoline line, its one end is connected with the first pressure valve;
Gasoline separator, it is located on gasoline line, for filtering gasoline;
Air cylinder, for storing gas fuel;
Pressure transducer, is located in air cylinder, for obtaining the pressure signal of the gas fuel in air cylinder and being sent to ECU control unit;
Combination brake switch and proporting, it is connected with air cylinder;
Gas pipeline, its one end is connected with combination brake switch and proporting;
Decompressor, it is located on gas pipeline, for high-pressure natural gas fuel is decompressed to force value needed for engine operation;
Low-pressure filter, it establishes on gas pipeline, for filtering gas fuel;
Dual pressure sensor, is located on gas pipeline, comprises pressure transducer and pressure switch, and pressure transducer is for obtaining the pressure signal of gas pipeline and being sent to ECU control unit; Pressure switch is used at gas pipeline pressure lower than during setting value, signal being sent to ECU control unit and disconnect gas pipeline under the control of ECU control unit;
Motor;
Intake manifold, is connected with the cylinder of motor;
Sparger assembly, it comprises integral type electrically controlled injector, and it is connected with the other end of gasoline line and gas pipeline, and its signal input part is electrically connected with the output terminal of ECU control unit, according to the control signal of ECU control unit, gasoline or gas fuel are selected to spurt into motor;
Temperature transducer, for obtaining the temperature signal of motor or engine coolant temperature signal and being sent to ECU control unit;
Air inlet pressure sensor, also sends to ECU control unit for the mixed pressure force signal obtained in intake manifold;
Speed probe, for obtaining the tach signal of motor and being sent to ECU control unit;
Lambda sensor, is sent to ECU control unit for the oxygen content signal that obtains in outlet pipe;
When the temperature signal of the motor that described temperature transducer obtains or engine coolant temperature signal reach setting value, ECU control unit controls sparger assembly by gas fuel supply engine, and motor starts with gas fuel;
Motor drives in operation process with gas fuel, when the pressure signal of the gas pipeline that the described pressure transducer of dual pressure sensor obtains is lower than setting value, described pressure switch disconnects gas pipeline, ECU control unit control petrol pump and sparger assembly are by Fuel Petroleum supply engine, and motor drives running with Fuel Petroleum;
Motor drives in operation process with gas fuel, when mixed pressure force signal in the intake manifold that the engine rotational speed signal that described speed probe obtains and air inlet pressure sensor obtain reaches setting value, ECU control unit control petrol pump and sparger assembly are by Fuel Petroleum supply engine, and motor drives running with Fuel Petroleum.
2. automobile gasoline according to claim 1, natural gas double-fuel supply system, is characterized in that, described integral type electrically controlled injector be installed in intake manifold or motor cylinder head on.
3. automobile gasoline according to claim 1 and 2, natural gas double-fuel supply system, it is characterized in that, described gas pipeline is provided with heating equipment, and the gas fuel that this heating equipment is used in gas pipeline heats gas fuel lower than during setting value.
4. automobile gasoline according to claim 3, natural gas double-fuel supply system, is characterized in that, described integral type electrically controlled injector, comprises injector body, and this injector body is provided with:
Gas fuel entrance, for being connected with described gas pipeline;
Fuel Petroleum entrance, is set up in parallel with gas fuel entrance, for being connected with described gasoline line;
First valve pocket, is communicated with gas fuel entrance;
Second valve pocket, is communicated with Fuel Petroleum entrance;
Fuel ejiction opening, is communicated with the second valve pocket with the first valve pocket;
Gas fuel injection control valve, is located at the first valve pocket, for controlling being communicated with or cut-off of the first valve pocket and fuel ejiction opening under the control of ECU control unit;
Fuel Petroleum injection control valve, is located at the second valve pocket, for controlling being communicated with or cut-off of the second valve pocket and fuel ejiction opening under the control of ECU control unit.
5. automobile gasoline according to claim 4, natural gas double-fuel supply system, it is characterized in that, described fuel ejiction opening is provided with the first ejection passage and the second ejection passage, first ejection passage is communicated with the first valve pocket, second ejection passage is communicated with the second valve pocket, first ejection passage and the second ejection passage are in being parallel to each other near fuel ejiction opening position, and injection direction is identical.
6. automobile gasoline according to claim 5, natural gas double-fuel supply system, is characterized in that, described gas fuel injection control valve comprises:
First valve seat, it to be installed in the first valve pocket and near gas fuel entrance, this first valve seat is in T shape, there is a located lateral portion and a downward opening longitudinal direction is socketed guide portion, wherein, located lateral portion offers the fuel pod apertures running through itself, and fuel pod apertures is positioned at the periphery of longitudinally socket guide portion;
First movable body, its one end is located at and is longitudinally socketed in guide portion;
First electromagnetic coil, is located at the periphery of the first valve pocket, and relative with the first movable body;
First elastic component, is located at and is longitudinally socketed in guide portion, and offset with the located lateral portion of the first movable body and the first valve seat respectively;
First needle-valve, is installed in the first valve pocket, and sprays between passage in the first movable body and first, and it is connected with the other end of the first movable body and can moves up and down;
During described first electromagnetic coil energising, the active force that the magnetic force that first electromagnetic coil energising produces drives the first movable body to overcome the first elastic component is longitudinally socketed guide portion and moves up, make the first needle-valve follow the first movable body move from bottom to top and depart from the first ejection passage, now the first valve pocket is communicated with fuel ejiction opening by the first ejection passage; During described first electromagnetic coil power-off, first movable body is longitudinally socketed guide portion and moves down under the reset response power of the first elastic component, make the first needle-valve follow the first movable body move from top to bottom and be tight against the first ejection passage, now the first valve pocket ends mutually with fuel ejiction opening.
7. automobile gasoline according to claim 6, natural gas double-fuel supply system, is characterized in that, described Fuel Petroleum injection control valve comprises:
Second valve seat, it is installed on the medium position of the second valve pocket, this second valve seat is in T shape, there is a located lateral portion and a downward opening longitudinal direction is socketed guide portion, wherein, located lateral portion offers the fuel pod apertures running through itself, and fuel pod apertures is positioned at the periphery of longitudinally socket guide portion;
Second movable body, its one end is located at and is longitudinally socketed in guide portion;
Second electromagnetic coil, is located at the periphery of the second valve pocket, and relative with the second movable body;
Second elastic component, is located at and is longitudinally socketed in guide portion, and offset with the located lateral portion of the second movable body and the second valve seat respectively;
Second needle-valve, is installed in the second valve pocket, and sprays between passage in the second movable body and second, and it is connected with the other end of the second movable body and can moves up and down;
During described second electromagnetic coil energising, the active force that the magnetic force that second electromagnetic coil energising produces drives the second movable body to overcome the second elastic component is longitudinally socketed guide portion and moves up, make the second needle-valve follow the second movable body move from bottom to top and depart from the second ejection passage, now the second valve pocket is communicated with fuel ejiction opening by the second ejection passage; During described second electromagnetic coil power-off, second movable body is longitudinally socketed guide portion and moves down under the reset response power of the second elastic component, make the second needle-valve follow the second movable body move from top to bottom and be tight against the second ejection passage, now the second valve pocket ends mutually with fuel ejiction opening.
8. automobile gasoline according to claim 7, natural gas double-fuel supply system, is characterized in that, described Fuel Petroleum entrance and fuel ejiction opening periphery offer circular groove respectively, and circular groove is respectively equipped with seal ring; And described Fuel Petroleum ingress is provided with filter screen.
9. automobile gasoline according to claim 8, natural gas double-fuel supply system, is characterized in that, the periphery of described gas fuel entrance is convexly equipped with can match with the internal surface of described gas pipeline some by little gradually large anticreep positioning ring.
10. automobile gasoline according to claim 8, natural gas double-fuel supply system, it is characterized in that, described gas fuel ingress is provided with the convenient fast-type joint be connected with gas pipeline, this fast-type joint comprises one and offers threaded locking auxiliary section and by little gradually large tapered plugging portion, the periphery be positioned at below tapered plugging portion and to be located on gas pipeline and the nut that can match with locking auxiliary section, wherein, annular groove is provided with between described tapered plugging portion and locking auxiliary section; Or described gas fuel ingress is provided with the convenient collar joint be connected with gas pipeline, this collar joint comprise periphery offer threaded locking auxiliary section, be located on gas pipeline and the nut that can match with locking auxiliary section and being located at lock between auxiliary section and nut have through hole and by Tapered Cup gradually little greatly and ring washer.
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| CN201510400447.2A CN105041488A (en) | 2015-07-09 | 2015-07-09 | Automobile gasoline and natural gas dual-fuel supply system |
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| CN201510400447.2A CN105041488A (en) | 2015-07-09 | 2015-07-09 | Automobile gasoline and natural gas dual-fuel supply system |
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Cited By (6)
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| CN108331668A (en) * | 2018-02-08 | 2018-07-27 | 浙江吉利控股集团有限公司 | Oil-gas switch method and system |
| CN109098864A (en) * | 2018-09-28 | 2018-12-28 | 吉林大学 | A kind of dual fuel engine fuel feed system and control method |
| CN110714842A (en) * | 2019-09-29 | 2020-01-21 | 重庆鼎工机电有限公司 | Dual-fuel gas priority non-stop full-automatic switching system and control method thereof |
| CN111677609A (en) * | 2020-06-09 | 2020-09-18 | 一汽解放汽车有限公司 | Dual-fuel system and vehicle |
| CN112590536A (en) * | 2020-12-14 | 2021-04-02 | 北京现代汽车有限公司 | Fuel liquid level control method, device and system |
| CN112796895A (en) * | 2020-12-28 | 2021-05-14 | 浙江吉利控股集团有限公司 | Fuel mode switching method and system of dual-fuel vehicle and vehicle |
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| CN109098864A (en) * | 2018-09-28 | 2018-12-28 | 吉林大学 | A kind of dual fuel engine fuel feed system and control method |
| CN110714842A (en) * | 2019-09-29 | 2020-01-21 | 重庆鼎工机电有限公司 | Dual-fuel gas priority non-stop full-automatic switching system and control method thereof |
| CN111677609A (en) * | 2020-06-09 | 2020-09-18 | 一汽解放汽车有限公司 | Dual-fuel system and vehicle |
| CN112590536A (en) * | 2020-12-14 | 2021-04-02 | 北京现代汽车有限公司 | Fuel liquid level control method, device and system |
| CN112590536B (en) * | 2020-12-14 | 2022-06-07 | 北京现代汽车有限公司 | Fuel liquid level control method, device and system |
| CN112796895A (en) * | 2020-12-28 | 2021-05-14 | 浙江吉利控股集团有限公司 | Fuel mode switching method and system of dual-fuel vehicle and vehicle |
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Application publication date: 20151111 |