CN201568160U - Vehicular natural gas air-conditioning engine - Google Patents
Vehicular natural gas air-conditioning engine Download PDFInfo
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- CN201568160U CN201568160U CN2009202228549U CN200920222854U CN201568160U CN 201568160 U CN201568160 U CN 201568160U CN 2009202228549 U CN2009202228549 U CN 2009202228549U CN 200920222854 U CN200920222854 U CN 200920222854U CN 201568160 U CN201568160 U CN 201568160U
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- gas
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- natural gas
- fuel gas
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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
Abstract
The utility model relates to a natural gas engine, in particular to a vehicular natural gas air-conditioning engine. The vehicular natural-gas air-conditioning engine comprises an engine body, a fuel gas supply system and a control system, wherein the fuel gas supply system consists of a fuel gas high-pressure storage tank, a high-pressure check valve, a pressure reducer, a filter and a fuel gas track that are sequentially connected with one another by pipelines; the fuel gas track is provided with an output jointing pipe which has the same volume as a gas cylinder; the output jointing pipe of the fuel gas track is connected with each fuel gas nozzle respectively; the fuel gas nozzle is fixedly arranged at the lower body of the air inlet manifold of the gas cylinder; the pressure reducer is provided with a heating water jacket; the water inlet pipe of the heating water jacket of the pressure reducer is connected with the water outlet pipe of the engine body; and the water outlet pipe of the heating water jacket of the pressure reducer is connected with the water inlet pipe of the engine body. The fuel gas supply system is simple, adopts a multi-point sequential fuel-gas electric-spraying system controlled by a micro-computer to ensure the engine obtains low fuel-gas consumption quantity and low emission quantity under various working conditions; and the water heated by the gas cylinder body is utilized to heat the natural gas without need of an additional heater.
Description
Technical field
The utility model relates to a kind of natural gas engine, particularly a kind of natural gas used for automobile air-conditioning engine that drives air conditioner.
Background technique
The market oil price is constantly soaring, and Gas Prices is cheap, and the western China natural gas resource is very abundant, and areas such as China Guangzhou, Chongqing have been a kind of trend with compressed natural gas (CNG) as motor fuel.The mountain area that mostly is of living in, ground such as Guangzhou, Chongqing, main frame band air condition compressor is short of power during the climbing of big bus car, presses for a kind of with the identical natural gas used for automobile air-conditioning engine of main frame fuel.
200610095093.6 disclosing a kind of is the self-contained air-conditioner unit of power with the gas engine, as shown in Figure 1, comprise motor 101 and compressor, the output shaft of motor 101 links to each other with the compressor input shaft with belt pulley by belt, it is characterized in that: be serially connected with throttle valve 104 on the pipeline between described motor 101 and the mixer 103, be serially connected with gas gas electromagnetic valve 106 successively on the pipeline between combustion gas caisson 105 and the mixer 103, pressure regulator valve 107 and dynamic valve 108, induction of signal folder 010 is installed on the circuit between spark coil 109 and the motor 101, this induction of signal folder 010 links to each other by the signal input pin of lead with tolerance display switch 111, and the control signal output pin of tolerance display switch 111 links to each other with gas gas electromagnetic valve 106 by lead.Be connected with filter cleaner 115 on the pipeline between described combustion gas caisson 105 and the gas gas electromagnetic valve 106, be provided with hand stop valve 116 between filter cleaner 115 and the combustion gas caisson 105.
Above-mentioned gas engine, it is the single-point discharge gas engine of repacking design on the basis of diesel engine, the gas supply system more complicated, be provided with pressurized machine and mixer, combustion gas mixes after the pressurized machine supercharging becomes high-pressure gas at mixer with air, enters cylinder through air throttle (or claiming closure).In addition, the motor of single-point discharge exists air fuel ratio control accurate inadequately, and emission standard is relatively poor.
In addition, the liquified natural gas in the gas cylinder absorbs a large amount of vaporization heat in through the process of reduction valve puffing gasification, can cause pipeline to freeze, and stops up gas circuit, heater need be set the combustion gas of inflation process is heated.
The existing used motor of rock gas air-conditioning unit on the market also adopts the petrol engine of Carburetor.Carburetor engine is owing to reasons such as working principle and structures, and the feature of environmental protection is poor, and running is unstable, poor reliability.During engine operation, ambient air is entering cylinder under the cylinder suction after air-strainer filters.Air stream owing to the cross section flow velocity that diminishes increases and to cause pressure to descend, forms certain degree of vacuum when the trunnion place.Rock gas just sprays in the intake duct from the main jet pipe under the effect of this degree of vacuum, and the rock gas of ejection is mixed into mixed gas by high velocity air and enters cylinder.No mixer and pressurized machine, fuel supplying device is simple in structure, and its disadvantage is accurately to control the concentration of mixed gas, causes incomplete combustion, and harmful components increase in the waste gas, do not meet the strict demand of current environmental protection.In addition, because the existence of trunnion increases intake resistance.It is inhomogeneous also to exist each cylinder distribute natural gas, phenomenon such as easily produce vapour lock and freeze.
How will adopt the gasoline engine refitting of Carburetor to become to be used for the gas engine of air conditioner, make it both have air supply system simple in structure, it is good to have the feature of environmental protection again, and running is stable, high reliability features is that current motor car engine industry presses for one of difficult problem of solution.
The model utility content
Technical problem to be solved in the utility model is at the above-mentioned deficiency of prior art, and to provide a kind of gas supply system simple natural gas used for automobile air-conditioning engine.
Natural gas used for automobile air-conditioning engine provided by the utility model is realized by following technological scheme.
A kind of natural gas used for automobile air-conditioning engine, comprise engine body, gas supply system and control system with turnover water pipe, wherein said gas supply system is to form by combustion gas high pressure tank, high-pressure stop valve, decompressor, filter, combustion gas gas rail that pipeline connects in regular turn, described combustion gas gas rail is provided with the discharge conection of respective numbers corresponding to the number of cylinders of motor, each discharge conection of described combustion gas gas rail connects each gas nozzle respectively, and described gas nozzle is fixedly arranged on the cylinder intake manifold; Described decompressor is the decompressor with heating water jacket, and described decompressor heating water jacket's intake pipe connects the outlet pipe of described engine body, and described decompressor heating water jacket's outlet pipe connects the intake pipe of described engine body.
Except that above-mentioned essential features, in specific implementation process, also can further replenish following technology contents.
Described natural gas used for automobile air-conditioning engine, wherein said combustion gas gas rail comprises a suction tude, corresponding to the gas electromagnetic valve and the discharge conection of the number of cylinders of motor, described suction tude connects the suction port of described each gas electromagnetic valve respectively by air intake branch, and the air outlet of described each gas electromagnetic valve connects described each discharge conection respectively; The control coil of described gas electromagnetic valve connects described control system.
Described natural gas used for automobile air-conditioning engine, wherein said control system comprises the cooling-water temperature sensor of being located on the body outlet pipe, be located at the suction pressure temperature transducer on the suction tude, be located at the lambda sensor on the outlet pipe, be located at the crankshaft rotational speed sensor and the computer controller of gear chamber, described cooling-water temperature sensor, the suction pressure temperature transducer, lambda sensor, crankshaft rotational speed sensor connects described computer controller, described computer controller calculates by reading each sensor signal, and to fuel gas temperature, pressure, air-distributor pressure, coolant temperature, transient response and closed loop control are revised, the accurately multipoint sequential injection and the correct timed ignition of control combustion gas gas rail guarantees that the various operating modes of motor obtain low amount of consumed gas and low emission.
Described natural gas used for automobile air-conditioning engine, wherein said computer controller is provided with the self-learning function module.
Described natural gas used for automobile air-conditioning engine, wherein said computer controller is provided with diagnostics interface.
Described natural gas used for automobile air-conditioning engine, wherein said gas nozzle is crimped on the cylinder intake manifold.
Advantage of the present utility model is:
1, natural gas used for automobile air-conditioning engine gas supply system of the present utility model is simple, and whole system is made up of parts such as gas nozzle, combustion gas gas rail, decompressor, filter, stop valve, high pressure tank and high low pressure pipelines.And adopt micro-processor controlled multi-point sequent gas electrojet system, according to the load of motor, nozzle regularly sprays into required gas quantity at the intake valve place of motor.
2, natural gas used for automobile air-conditioning engine of the present utility model is used for the air-conditioning unit, and the warm wind water pipe of general motor will no longer need.The turnover water pipe that general motor is connected warm-air drier by the turnover water pipe of cylinder block being used to of deriving is connected to reduction valve, adopts the decompressor with heating water jacket, utilizes the water that is heated by cylinder block that rock gas is heated, and need not to set up in addition heater.
3, natural gas used for automobile air-conditioning engine of the present utility model adopts microcomputer control multi-point sequent EFI, therefore the control of air fuel ratio is accurate, can carry out oil spout according to timing, and fuel injection quantity, oil spout are accurately controlled constantly, so it is emission standard is higher, more economical fuel-efficient.
4, natural gas used for automobile air-conditioning engine of the present utility model adopts the microcomputer control gas electrojet system, no matter be in the concentration that can both accurately control mixed gas under which kind of operating mode at any environmental conditions and motor, make combustion gas obtain cmpletely burning.This greatly reduces the content of harmful components in the waste gas, also makes motor have good burning Economy.The microcomputer of EFI gas engine calculates by the various sensor signals that read motor, and carry out various corrections (fuel gas temperature, pressure, air-distributor pressure, coolant temperature, transient response and closed loop control correction etc.), carry out accurate multipoint sequential injection.Guarantee that the various operating modes of motor obtain low amount of consumed gas and low emission.
5, the microcomputer control gas electrojet system of good reliability natural gas used for automobile air-conditioning engine of the present utility model has self-learning function, along with the running of engine long time, wearing and tearing can appear in motor and system, system need not to adjust (except simple decompressor is provided with) or special maintenance basically, control system possesses ADAPTIVE CONTROL (learning control), guaranteed performance.
6, the microcomputer control gas electrojet system employing multipoint sequential injection of natural gas used for automobile air-conditioning engine of the present utility model is stablized in running, accurately controls the fuel gas injection amount, and engine running is stable.
7, the microcomputer control gas electrojet system of the simple natural gas used for automobile air-conditioning engine of the present utility model of fault judgement is provided with diagnostics interface, and fault judgement is simple.
For structure characteristic of the present utility model and effect thereof are had further understanding, enumerate specific embodiment now and be described with reference to the accompanying drawings as follows.
Description of drawings
Fig. 1 be existing be the structural principle schematic representation of the gas engine in the self-contained air-conditioner unit of power with the gas engine.
Fig. 2 is the structural principle schematic representation of the utility model natural gas used for automobile air-conditioning engine.
Fig. 3 is the structural representation of the utility model natural gas used for automobile air-conditioning engine.
Fig. 4 is being connected and structural representation that combustion gas gas rail connects of decompressor and cylinder block turnover water pipe in the utility model natural gas used for automobile air-conditioning engine.
Fig. 5 is the combustion gas gas rail structural drawing in the utility model natural gas used for automobile air-conditioning engine.
Fig. 6 is the Zoom Side sectional view of combustion gas gas rail.
Embodiment
See also Fig. 2, Fig. 3, shown in Figure 4, a kind of natural gas used for automobile air-conditioning engine provided by the utility model, comprise and have turnover water pipe 11,12 engine body 1, gas supply system and control system, wherein said gas supply system is the combustion gas high pressure tank 2 that connects in regular turn by pipeline, high-pressure stop valve 3, decompressor 4, filter 5, combustion gas gas rail 6 is formed, described combustion gas gas rail 6 is provided with the discharge conection that is provided with gas electromagnetic valve 61 of equal number corresponding to the quantity of the cylinder 9 of engine body 1, the discharge conection 61 of described combustion gas gas rail 6 connects gas nozzle 7, and described gas nozzle 7 is fixedly arranged on the inlet casing intake manifold 8; High-pressure liquid rock gas in the combustion gas high pressure tank 2 enters decompressor 4 by high-pressure stop valve 3, decompressor with high pressure air reducing to the pressure that is higher than air-distributor pressure 100kPa, after filtering out impurities, the natural gas via filter 5 that the decompression gasification is expanded enters combustion gas gas rail 6, when certain cylinder enters suction stroke, when air intake valve is opened, the corresponding discharge conection of combustion gas gas rail 6 sprays into high-pressure gas to gas nozzle 7 at regular time and quantity under the control of gas electromagnetic valve, high-pressure gas enters cylinder with air mixing in intake manifold 8.Described air enters suction tude 21 through air filter 20, is provided with the Air valves 22 by accelerator pedal control in the described suction tude 21.In the gas supply system of the present utility model, no mixer and pressurized machine, the structure of air supply system is simple than prior art.Adopt microcomputer control gas rail gas electromagnetic valve to realize multipoint sequential injection, accurately control the fuel gas injection amount, engine running is stable, reduces amount of consumed gas and toxic emission.
See also shown in Figure 4, described decompressor 4 is for having heating water jacket's decompressor, the heating water jacket's of described decompressor 4 intake pipe 41 connects the outlet pipe 12 of described engine body, described decompressor heating water jacket's outlet pipe 42 connects the intake pipe 11 of described engine body, constitute circulation waterway, the water of launched machine cylinder body heating is entered decompressor 4 by pipeline by outlet pipe 12 heating water jacket, the rock gas that expands with gasification in water jacket carries out heat exchange, the water that is cooled is flowed back to the intake pipe 11 of engine body by heating water jacket's outlet pipe 42, under the condition of not setting up any additional heater, solved the high-pressure liquid rock gas and in the process of gasification that expands, absorbed the problem that a large amount of vaporization heat cause the icing obstruction of pipeline gas circuit.
See also Fig. 5, shown in Figure 6, described combustion gas gas rail 6 comprises a suction tude 62, corresponding to a plurality of gas electromagnetic valves 63 and a plurality of discharge conection 61 of the number of cylinders of motor, described suction tude 62 connects the suction port of described a plurality of gas electromagnetic valve 63 respectively by a plurality of arms 64, and the air outlet of described a plurality of gas electromagnetic valves 63 connects described a plurality of discharge conection 61 respectively; The control coil of described gas electromagnetic valve connects described control system.
See also shown in Figure 2, control system in the natural gas used for automobile air-conditioning engine described in the utility model, also comprise the cooling-water temperature sensor of being located on the engine body outlet pipe 12 13, be located at the suction pressure temperature transducer 14 on the suction tude, be located at the lambda sensor 15 on the outlet pipe 19, be located at the crankshaft rotational speed sensor 16 and the computer controller 17 of gear chamber, described cooling-water temperature sensor 13, suction pressure temperature transducer 14, lambda sensor 15, crankshaft position sensor 16 connects described computer controller 17, described computer controller 17 calculates by reading each sensor signal, and to fuel gas temperature, pressure, air-distributor pressure, coolant temperature, transient response and closed loop control are revised, the accurately multipoint sequential injection and the correct timed ignition of control combustion gas gas rail guarantees that the various operating modes of motor obtain low amount of consumed gas and low emission.
Described computer controller is provided with the self-study function module.Along with the running of engine long time, wearing and tearing can appear in motor and system, and system need not to adjust (except simple decompressor is provided with) or special maintenance basically, and control system possesses ADAPTIVE CONTROL (learning control), guaranteed performance, the functional reliability that has improved motor is good.
Described computer controller is provided with diagnostics interface 18, and fault judgement is simple.
Described gas nozzle is crimped on the cylinder intake manifold, promptly adopts interference fit method, and the combustion gas mouth is fixed on the intake manifold.
The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, though the utility model discloses as above with preferred embodiment, yet be not in order to limit the utility model, any those skilled in the art, in not breaking away from the technical solutions of the utility model scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solutions of the utility model, according to technical spirit of the present utility model to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solutions of the utility model.
Claims (5)
1. natural gas used for automobile air-conditioning engine, comprise engine body, gas supply system and control system with turnover water pipe, it is characterized in that described gas supply system is to form by combustion gas high pressure tank, high-pressure stop valve, decompressor, filter, combustion gas gas rail that pipeline connects in regular turn, described combustion gas gas rail is provided with the discharge conection of respective numbers corresponding to the number of cylinders of motor, each discharge conection of described combustion gas gas rail connects each gas nozzle respectively, and described gas nozzle is fixedly arranged on the cylinder intake manifold; Described decompressor is the decompressor with heating water jacket, and described decompressor heating water jacket's intake pipe connects the outlet pipe of described engine body, and described decompressor heating water jacket's outlet pipe connects the intake pipe of described engine body.
2. natural gas used for automobile air-conditioning engine according to claim 1, it is characterized in that described combustion gas gas rail comprise a suction tude, corresponding to the gas electromagnetic valve and the discharge conection of the number of cylinders of motor, described suction tude connects the suction port of described each gas electromagnetic valve respectively by air intake branch, and the air outlet of described each gas electromagnetic valve connects described each discharge conection respectively; The control coil of described gas electromagnetic valve connects described control system.
3. natural gas used for automobile air-conditioning engine according to claim 1, it is characterized in that described control system comprises the cooling-water temperature sensor be located on the engine body outlet pipe, is located at suction pressure temperature transducer on the suction tude, is located at the lambda sensor on the outlet pipe, the crankshaft rotational speed sensor of being located at gear chamber and computer controller, described cooling-water temperature sensor, suction pressure temperature transducer, lambda sensor, crankshaft rotational speed sensor connect described computer controller.
4. natural gas used for automobile air-conditioning engine according to claim 3 is characterized in that described computer controller is provided with diagnostics interface.
5. natural gas used for automobile air-conditioning engine according to claim 1 is characterized in that described gas nozzle is crimped on the cylinder intake manifold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202228549U CN201568160U (en) | 2009-09-28 | 2009-09-28 | Vehicular natural gas air-conditioning engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202228549U CN201568160U (en) | 2009-09-28 | 2009-09-28 | Vehicular natural gas air-conditioning engine |
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| Publication Number | Publication Date |
|---|---|
| CN201568160U true CN201568160U (en) | 2010-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009202228549U Expired - Lifetime CN201568160U (en) | 2009-09-28 | 2009-09-28 | Vehicular natural gas air-conditioning engine |
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| CN (1) | CN201568160U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107120217A (en) * | 2017-06-29 | 2017-09-01 | 潍柴西港新能源动力有限公司 | Gas engine air inlet temperature control system |
-
2009
- 2009-09-28 CN CN2009202228549U patent/CN201568160U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107120217A (en) * | 2017-06-29 | 2017-09-01 | 潍柴西港新能源动力有限公司 | Gas engine air inlet temperature control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIQI FUTIAN AUTOMOBILE CO., LTD. Free format text: FORMER OWNER: BEIJING FOTON ENVIRONMENTAL ENGINE CO., LTD. Effective date: 20110803 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 102200 CHANGPING, BEIJING TO: 102206 CHANGPING, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110803 Address after: 102206 Changping District City, Shahe, Sha Yang Road, Beijing Patentee after: Beiqi Futian Automobile Co., Ltd. Address before: 102200, Beijing, Shahe Town, Changping District Road, sand Yang Patentee before: Beijing Foton Environmental Engine Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100901 |