CN203742836U - Fuel gas supply device of engine - Google Patents
Fuel gas supply device of engine Download PDFInfo
- Publication number
- CN203742836U CN203742836U CN201420161594.XU CN201420161594U CN203742836U CN 203742836 U CN203742836 U CN 203742836U CN 201420161594 U CN201420161594 U CN 201420161594U CN 203742836 U CN203742836 U CN 203742836U
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- CN
- China
- Prior art keywords
- gas
- thermostat
- fuel gas
- heat exchanger
- outlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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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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- Feeding And Controlling Fuel (AREA)
Abstract
The utility model discloses a fuel gas supply device of an engine. The fuel gas supply device of the engine comprises a plate type heat exchanger, wherein the plate type heat exchanger is provided with a multifunctional valve block; a filter and a thermostat are integrated on the multifunctional valve block; the plate type heat exchanger is provided with a water inlet joint and a fuel gas outlet; the multifunctional valve block is provided with a fuel gas inlet and a water outlet; the plate type heat exchanger with the multifunctional valve block is provided with a fuel gas circulating channel and a cooling liquid circulating channel; the fuel gas inlet and the fuel gas outlet are connected with the fuel gas circulating channel; the water inlet joint and the water outlet are connected with the cooling liquid circulating channel; the filter is connected with the fuel gas circulating channel; the thermostat is provided with a gas channel and a water channel; the gas channel of the thermostat is connected with the fuel gas circulating channel; the water channel of the thermostat is connected with the cooling liquid circulating channel; an outlet end of the gas channel of the thermostat is provided with an electromagnetic valve which is used for controlling fuel gas which flows through the thermostat; and the flow of cooling liquid of the cooling liquid circulating channel can be controlled by the thermostat. The fuel gas supply device of the engine is integrated; the cost is reduced; and the running reliability of the engine is improved.
Description
Technical field
The utility model relates to gas engine field, particularly a kind of gas feeder of motor.
Background technique
Gas engine is in design, production, using process, and fuel supply system requires have burnt gas switch, filtration, these three fundamental functions of temperature correction, and corresponding part is respectively fuel cutoff valve, gas filter, heat exchanger and thermostat.The meaning of temperature correction is in the time that ambient temperature is lower, thereby may cause the too low engine start that affects of fuel gas temperature, can utilize this time engine coolant to heat combustion gas.Temperature controlled meaning is in the time that ambient temperature is higher, thereby may cause the too high use that affects motor of fuel gas temperature, can utilize this time thermostat to carry out suitable minimizing to reduce fuel gas temperature to the coolant rate of heating gas.The volumetric gas of gas cut off valve rear end is to send after the instruction of shutdown when car load on the impact of motor; first fuel cutoff valve can close; if the residual combustion gas in cut-off valve in this time rear end means that the time of engine stop more lags behind more; otherwise while startup, inflationtime starts also more hysteresis more for a long time.
At present, above several component that the gas engine on market is used are all to manufacture separately the supply of material by part producer, complete assembling by motor producer or main engine factory, and some is to be arranged on motor, and some is to be arranged on automotive frame.Because part kind is many, arrangement be connected quite trouble, gas engine gas supply system component disperse, integrated degree is not highly given design, produce, use and brings inconvenience.As shown in Figure 1, with conventional CNG(Compressed Natural Gas, automobile with compressed natural gas) gas engine supply system is example: combustion gas from CNG gas cylinder 1 out, pass through successively high pressure relief device 2, fuel cutoff valve 4, gas filter 3, heat exchanger 5, thermostat 6, fuel gas injection parts 7, mixer 8, after suction tude, arrive the firing chamber of motor 9, wherein combustion gas is successively by fuel cutoff valve 4, gas filter 3, heat exchanger 5, when thermostat 6, need a large amount of joint and pipeline, these four parts no matter be arranged on motor or car load crossbeam on also need corresponding support, bolt is fixed, therefore general arrangement not only cost appearance high and more link certainly will increase the risk of gas leakage.
The information that is disclosed in this background technique part is only intended to increase the understanding to general background of the present utility model, and should not be regarded as admitting or imply that in any form this information structure has been the known prior art of persons skilled in the art.
Model utility content
The purpose of this utility model is to provide a kind of gas feeder of motor, by fuel cutoff valve, filter, heat exchanger, thermostat are carried out to Integrated design, and change related components and combustion gas trend, meet in engine gas is supplied with and reduce costs, improve motor reliability of operation in maximum.
For achieving the above object, the utility model provides a kind of gas feeder of motor, comprise: with the plate type heat exchanger of multifunction valve piece, multifunction valve piece is arranged on a side of plate type heat exchanger, plate type heat exchanger has water supply connector and gas outlet, multifunction valve piece has fuel gas inlet and water outlet, there is combustion gas circulation canal and coolant circulation passage with the plate type heat exchanger of multifunction valve piece, fuel gas inlet and gas outlet and combustion gas circulation canal are connected, and water supply connector and water outlet and coolant circulation passage are connected; Filter, its integrated installation is in the lower end of multifunction valve piece, and with combustion gas circulation canal UNICOM; And thermostat, its integrated installation is in the upper end of multifunction valve piece, thermostat has gas circuit and water route, the gas circuit of thermostat and combustion gas circulation canal are connected, the water route of thermostat and coolant circulation passage are connected, the outlet end of the gas circuit of thermostat is provided with solenoid valve and is used for the combustion gas through thermostat to control, and thermostat can be controlled the coolant rate of coolant circulation passage.
Preferably, the inlet end of the gas circuit of thermostat and gas outlet are connected by tracheae.
Preferably, the outlet end of the gas circuit of thermostat is provided with air outlet adapter.
Preferably, the opposite side of plate type heat exchanger is provided with construction bolt.
Compared with prior art, the utlity model has following beneficial effect: by fuel cutoff valve, filter, heat exchanger, thermostat are carried out to Integrated design, and change related components and combustion gas trend, meet in engine gas is supplied with and reduce costs, improve motor reliability of operation in maximum
Brief description of the drawings
Fig. 1 is CNG gas engine gas supply system schematic diagram;
Fig. 2 is according to the structural representation of the gas feeder of motor of the present utility model;
Fig. 3 is the gas supply system schematic diagram that utilizes the gas feeder of motor of the present utility model.
Main description of reference numerals:
10-plate type heat exchanger, 101-water supply connector, 102-gas outlet, 20-multifunction valve piece, 201-and water outlet, 202-fuel gas inlet, 30-filter, 40-thermostat, 401-air outlet adapter, 50-solenoid valve, 60-tracheae.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, but is to be understood that protection domain of the present utility model is not subject to the restriction of embodiment.
Unless separately there is other clearly to represent, otherwise in whole specification and claims, term " comprises " or its conversion was stated being understood to include as " comprising " or " including " etc. element or constituent element, and do not get rid of other element or other constituent element.
The gas feeder of the motor of the utility model embodiment is that gas filter 3, fuel cutoff valve 4, heat exchanger 5, thermostat 6 are carried out to Integrated design (referring to Fig. 1), and change related components and combustion gas trend, meet in engine gas is supplied with and reduce costs, improve motor reliability of operation in maximum.
As shown in Figure 2, comprise the plate type heat exchanger 10 with multifunction valve piece 20 according to the gas feeder 3j of the motor of the utility model embodiment, filter 30 and thermostat 40, multifunction valve piece 20 is arranged on a side of plate type heat exchanger 10, plate type heat exchanger 10 has water supply connector 101 and gas outlet 102, multifunction valve piece 20 has fuel gas inlet 202 and water outlet 201, common combustion gas circulation canal and the coolant circulation passage (not shown) of forming of multifunction valve piece 20 and plate type heat exchanger 10, can carry out cold and hot exchange to the cooling liquid of motor and combustion gas in plate type heat exchanger 10 inside.Filter 30 integrated installations in the lower end of multifunction valve piece 20 and with combustion gas circulation canal UNICOM, particularly, fuel gas inlet 202 is connected by multifunction valve piece 20 and the entrance point of filter 30, the outlet end of filter 30 accesses combustion gas circulation canal by multifunction valve piece 20, be that combustion gas enters filter 30 by fuel gas inlet 202 and filters, combustion gas after filtration can be entered in plate type heat exchanger 10 and be carried out cold and hot exchange by multifunction valve piece 20, and the combustion gas that cold and hot exchange completes is flowed out by gas outlet 102.Thermostat 40 integrated installations are in the upper end of multifunction valve piece 20, thermostat 40 has gas circuit and water route (not shown), the gas circuit of thermostat 40 and combustion gas circulation canal are connected, the water route of thermostat 40 and coolant circulation passage are connected, particularly, the inlet end of the gas circuit of thermostat 40 and gas outlet 102 are connected by tracheae 60, the outlet end of the gas circuit of thermostat 40 is provided with solenoid valve 50 and is used for the combustion gas through thermostat 40 to control, the outlet end of the gas circuit of thermostat 40 is provided with air outlet adapter 401, coolant circulation passage is accessed by multifunction valve piece 20 in the water route of thermostat 40, the cooling liquid that is motor flows into plate type heat exchanger 10 from water supply connector 101, cooling liquid and combustion gas complete the water route that enters thermostat 40 after heat exchange by multifunction valve piece 20, finally flow out by the water outlet 201 of multifunction valve piece 20, wherein thermostat 40 carrys out regulating gas temperature by the coolant rate of controlling water outlet 201.In addition, the opposite side of plate type heat exchanger 10 is provided with construction bolt 103 and is used for fixing this device.
As shown in Figure 3, in the time that this device is installed in concrete use, combustion gas is out just connected with the fuel gas inlet 202 of this device through high pressure relief device 2 from CNG gas cylinder 1, combustion gas is connected by air outlet adapter 401 and fuel gas injection parts 7 after entering this device 3j, then after mixer 8, suction tude, arrives the firing chamber (referring to solid line direction in figure) of motor 9.The cooling liquid of motor flows into plate type heat exchanger 10 from water supply connector 101, and cooling liquid and combustion gas are flowed back to engine-cooling system (referring to dotted line direction in figure) by the water outlet 201 of multifunction valve piece 20 after completing heat exchange.
To sum up, it is multi-functional that this device integrates combustion gas filtration, temperature correction, temperature control, switch, can heat gas secondary, control fuel gas temperature, using gas filter as first order entrance, ensure that subsequent parts is not subject to combustion gas contaminating impurity, fuel cutoff valve be placed on to afterbody, ensure combustion gas can be in time, fast, effectively cut off.This device volume is little, lightweight, both can be arranged on car load crossbeam, also can be arranged on engine body.
This kind of Integration Design simplified layout and the installation of gas engine fuel supply system, reduces the installations such as support, pipeline, reduces costs, and simplifies gas engine fuel supply system, can reduce potential gas leakage point, improves vehicle reliability.Simultaneously; this Integration Design is adjusted the order of gas circulation to each component; be that to move towards sequencing be filter, heat exchanger, thermostat, fuel cutoff valve (electromagnetic valve) in combustion gas; the each component of maximum protection are avoided combustion gas contaminating impurity, and startup and the shutdown of control engine fast.
It should be noted that, this device is not limited to CNG gas engine, is also applicable to LNG gas engine, only front end CNG gas cylinder and high pressure relief device need to be changed to LNG gas tank and heat exchanger, voltage stabilizer.
The aforementioned description to concrete exemplary of the present utility model is in order to illustrate and the object of illustration.These descriptions not want the utility model to be defined as disclosed precise forms, and obviously, according to above-mentioned instruction, can much change and change.Exemplary embodiment is selected and the object described is to explain certain principles of the present utility model and practical application thereof, thereby made those skilled in the art can realize and utilize various exemplary of the present utility model and various selection and change.Scope of the present utility model is intended to be limited by claims and equivalents thereof.
Claims (4)
1. a gas feeder for motor, is characterized in that, comprising:
With the plate type heat exchanger of multifunction valve piece, described multifunction valve piece is arranged on a side of described plate type heat exchanger, described plate type heat exchanger has water supply connector and gas outlet, described multifunction valve piece has fuel gas inlet and water outlet, the described plate type heat exchanger with multifunction valve piece has combustion gas circulation canal and coolant circulation passage, described fuel gas inlet and described gas outlet and described combustion gas circulation canal are connected, and described water supply connector and described water outlet and described coolant circulation passage are connected;
Filter, its integrated installation is in the lower end of described multifunction valve piece, and with described combustion gas circulation canal UNICOM; And
Thermostat, its integrated installation is in the upper end of described multifunction valve piece, described thermostat has gas circuit and water route, the gas circuit of described thermostat and described combustion gas circulation canal are connected, the water route of described thermostat and described coolant circulation passage are connected, the outlet end of the gas circuit of described thermostat is provided with solenoid valve and is used for the combustion gas through described thermostat to control, and described thermostat can be controlled the coolant rate of described coolant circulation passage.
2. the gas feeder of motor according to claim 1, is characterized in that, the inlet end of the gas circuit of described thermostat and described gas outlet are connected by tracheae.
3. the gas feeder of motor according to claim 1, is characterized in that, the outlet end of the gas circuit of described thermostat is provided with air outlet adapter.
4. the gas feeder of motor according to claim 1, is characterized in that, the opposite side of described plate type heat exchanger is provided with construction bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420161594.XU CN203742836U (en) | 2014-04-02 | 2014-04-02 | Fuel gas supply device of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420161594.XU CN203742836U (en) | 2014-04-02 | 2014-04-02 | Fuel gas supply device of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203742836U true CN203742836U (en) | 2014-07-30 |
Family
ID=51342646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420161594.XU Expired - Fee Related CN203742836U (en) | 2014-04-02 | 2014-04-02 | Fuel gas supply device of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203742836U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883431A (en) * | 2014-04-02 | 2014-06-25 | 广西玉柴机器股份有限公司 | Fuel gas supply device of engine |
| CN112555059A (en) * | 2020-11-24 | 2021-03-26 | 新乡市艾洁净化科技有限公司 | Gas heater |
-
2014
- 2014-04-02 CN CN201420161594.XU patent/CN203742836U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883431A (en) * | 2014-04-02 | 2014-06-25 | 广西玉柴机器股份有限公司 | Fuel gas supply device of engine |
| CN112555059A (en) * | 2020-11-24 | 2021-03-26 | 新乡市艾洁净化科技有限公司 | Gas heater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140730 Termination date: 20160402 |