CN2406071Y - Gas-supplying device for liquified-gas engine - Google Patents
Gas-supplying device for liquified-gas engine Download PDFInfo
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- CN2406071Y CN2406071Y CN 99230221 CN99230221U CN2406071Y CN 2406071 Y CN2406071 Y CN 2406071Y CN 99230221 CN99230221 CN 99230221 CN 99230221 U CN99230221 U CN 99230221U CN 2406071 Y CN2406071 Y CN 2406071Y
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- solenoid valve
- circuit
- gas
- control circuit
- valve control
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Abstract
The utility model discloses a gas-supplying device for a liquified-gas engine, which is used for a small type vehicle. The utility model comprises a liquified-gas cylinder, a pressure gauge, and a mixing controller, wherein, pipelines which are arranged between the liquified-gas cylinder and the mixing controller are in series connected with pressure reducing valves and electromagnetic valves; the electromagnetic valves are electrically connected with controlling circuits of the electromagnetic valves; storage batteries in the controlling circuits of the electromagnetic valves are in series connected with a main switch; the pressure gauge is arranged on the pipelines which are positioned between the pressure reducing valve and the mixing controller; the controlling circuits of the electromagnetic valves are also provided with a magneto and a rectifying regulator; lighting coils of the magneto are in parallel connected with the storage batteries after connected with the rectifying regulator. The utility model can be used for indicating the working pressure of liquified gas and can also start an engine and make the engine normally work when the storage batteries are used up.
Description
The utility model relates to a kind of fuel supply device of liquefied petroleum gas engine, is particularly useful for the automobile-used liquefied petroleum gas engine air feeder of equipment of small motor.
Existing liquefied petroleum gas engine air feeder, for example the disclosed structure of Chinese patent CN2345708Y has the following disadvantages: what pressure gauge was indicated is the gas pressure that comes out from liquified petroleum gas cylinder, rather than through the post-decompression liquid gas working pressure of reduction valve, so when the liquified petroleum gas cylinder gas pressure changes, the manipulator does not just know the size through the post-decompression liquid gas working pressure of reduction valve value, also just can't adjust the liquid gas working pressure in good time, thereby can't make the inflammable mixture concentration that enters mixture control keep optimal values, easily like this cause engine operation undesired, exhaust emissions exceeds standard; In addition, the solenoid valve in the existing liquefied petroleum gas engine air feeder is by storage battery power supply, and controlled by main switch, in case such circuit storage battery uses up, just can't open solenoid valve, will make engine start not.
The purpose of this utility model is to provide a kind of energy indicator solution gasification working pressure, and also can make the liquefied petroleum gas engine air feeder of engine start and work when storage battery uses up electricity.
In order to achieve the above object, the utility model adopts following technology: a kind of liquefied petroleum gas engine air feeder, have liquified petroleum gas cylinder, pressure gauge and mixture control, on the pipeline between liquified petroleum gas cylinder and the mixture control, be serially connected with reduction valve, solenoid valve, solenoid valve is electrically connected with solenoid valve control circuit, storage battery and main switch series connection in the solenoid valve control circuit, pressure gauge is arranged on the pipeline between reduction valve and the mixture control; Also have magnetogenerator and rectification adjuster in the solenoid valve control circuit, the lighting loop of magnetogenerator connects behind the rectification adjuster in parallel with storage battery.
After adopting said structure, on the pipeline that pressure gauge is arranged between reduction valve and the mixture control, therefore be that working pressure just is revealed through the post-decompression gas pressure of reduction valve, the manipulator just can see liquid gas working pressure numerical value at any time like this, because of factors such as season and variation of ambient temperature bigger variation takes place at the liquified petroleum gas cylinder gas pressure, thereby when influencing the reduction valve delivery pressure, just can suitably regulate reduction valve, make the liquid gas working pressure keep optimal values, thereby make the concentration of flammable liquid gasification mixed gas reach the optimum state, thereby start function fully to burn, proper functioning and discharging are also strict up to standard; Again since in solenoid valve control circuit the lighting loop of magnetogenerator be connected on behind the rectification adjuster in parallel with battery, so when storage battery uses up electricity, as long as after main switch closes, still available foot pedal starting mode is piloted engine, thereby make the lighting loop of magnetogenerator produce pulsed voltage, this pulsed voltage arrives solenoid valve after the rectification adjuster rectification, solenoid valve is opened, this just makes liquid gas enter mixture control so that motor gets final product ignition start when piloting engine; In addition, during engine operation, magnetogenerator can make storage battery durable to charge in batteries again.
Below in conjunction with drawings and Examples the utility model is described in further detail.
Fig. 1 is the structural representation of liquefied petroleum gas engine air feeder of the present utility model;
Fig. 2 is the solenoid valve control circuit schematic representation among second embodiment of the utility model;
Fig. 3 is the solenoid valve control circuit schematic representation among the 3rd embodiment of the utility model;
Fig. 4 is the solenoid valve control circuit schematic representation among the 4th embodiment of the utility model;
Fig. 5 is the solenoid valve control circuit schematic representation among the 5th embodiment of the utility model;
Fig. 6 is the 6th embodiment's of the utility model a structural representation;
Fig. 7 is the 7th embodiment's of the utility model a structural representation;
Fig. 8 is the 8th embodiment's of the utility model a structural representation;
Fig. 9 is the 9th embodiment's of the utility model a structural representation.
As shown in Figure 1, liquefied petroleum gas engine air feeder of the present utility model, have liquified petroleum gas cylinder 1, pressure gauge 3 and mixture control 5, on the pipeline between liquified petroleum gas cylinder 1 and the mixture control 5, be serially connected with reduction valve 2, solenoid valve 4, solenoid valve 4 is electrically connected with solenoid valve control circuit 6, storage battery 9 and main switch 10 series connection in the solenoid valve control circuit 6.Pressure gauge 3 is arranged on the pipeline between reduction valve 2 and the mixture control 5, and pressure gauge 3 is arranged on the pipeline between the import of the outlet port of reduction valve 2 and solenoid valve 4 in the present embodiment.It is in parallel with storage battery 9 that the lighting loop 7 of magnetogenerator 8 connects rectification adjuster 14 backs in the solenoid valve control circuit 6.The output terminal of solenoid valve control circuit 6 also can light lamp 11 in parallel.
As shown in Figure 2, embodiment's 2 of the present utility model mechanical construction drawing is with embodiment 1, it is in parallel with storage battery 9 that the lighting loop 7 of magnetogenerator 8 connects rectification adjuster 14 backs in the solenoid valve control circuit 6, and also be in series with switching circuit 15 in solenoid valve control circuit 6, the control end of this switching circuit 15 joins with the output terminal of the lighting loop of its magnetogenerator that is switched on or switched off 8 of control.The controllable type contact switch that this switching circuit 15 can be made up of relay, the also controllable type contactless switch that can form by controllable silicon etc., this switching circuit 15 can adopt existing switching circuit on the market, for example the switching circuit of Wuxi Co., Ltd of Chengdu huayi production.Owing to be in series with switching circuit 15 in the solenoid valve control circuit 6, if closed main switch 10, when foot-operated or electricity is piloted engine, make the lighting loop 7 of magnetogenerator 8 produce pulsed voltage, the direct control switch circuit 15 of this pulsed voltage makes switching circuit 15 be in closed state, can be so that the normally opened contact closure of controllable type contact switch, perhaps can make controllable silicon in the controllable type contactless switch etc. open-minded, thereby connect solenoid valve control circuit 6, solenoid valve 4 is opened.If main switch 10 is still closed, and motor does not rotate, the lighting loop 7 of magnetogenerator 8 can't produce pulsed voltage, so corresponding contact or contactless switch all disconnect in the switching circuit 15, solenoid valve control circuit 6 is cut off, and solenoid valve 4 cuts out, liquid gas can't pass through, as long as motor does not rotate,, can not produce gas leak like this even main switch 10 still is in closed state yet.
As shown in Figure 3, in solenoid valve control circuit 6, also be in series with gas leak warning circuit 16, this gas leak warning circuit 16 be mainly by sensor and related circuit thereof constitute can control electromagnetic valve control circuit 6 break-makes circuit.This gas leak warning circuit 16 also adopts the gas leak warning circuit of having sold on the market.Owing in solenoid valve control circuit 6, be in series with gas leak warning circuit 16; in service or shutdown is back as if gas leak takes place; sensor in this warning circuit 16 is during to certain density liquid gas; can produce warning on the one hand; can cut off this warning circuit 16 on the other hand, solenoid valve control circuit 6 is disconnected, solenoid valve 4 cuts out; liquid gas no longer leaks, and has played the safety precaution effect.
As shown in Figure 4, in embodiment 2 solenoid valve control circuit 6, also be in series with gas leak warning circuit 16.To be connected in the solenoid valve control circuit 6 after switching circuit 15 and 16 series connection of gas leak warning circuit, as long as motor does not rotate, even perhaps rotate, but when having the gas leak phenomenon, solenoid valve 4 all is in closed condition, concrete working principle have only the engine operation of working as, and liquid gas does not have leakage with 2,3, solenoid valve control circuit 6 is connected, solenoid valve 4 is just opened, and has both prevented that liquid gas from leaking, and has played the warning effect again.Switching circuit 15 and gas leak warning circuit 16 can adopt split type, also can adopt a combination of sets accepted way of doing sth, when adopting a combination of sets accepted way of doing sth, and portion of element such as relay, elements such as controllable silicon can be shared.
As shown in Figure 5, also have gas leak warning circuit 16 in embodiment 2 solenoid valve control circuit 6, an end of this gas leak warning circuit 16 and an end of switching circuit 15 join, another termination common port.Switching circuit 15 and gas leak warning circuit 16 are attempted by in the solenoid valve control circuit 6, and when liquid gas had leakage, gas leak warning circuit 16 produced the warning effect, reminded people's door to go to check reason, went to handle fault.But do not cut off solenoid valve control circuit 6 automatically, what can cut off solenoid valve control circuit is switching circuit 15, and its working principle is with 2.When adopting above-mentioned parallel form, switching circuit 15 can be split type with gas leak warning circuit 16, also can adopt a combination of sets accepted way of doing sth.
As shown in Figure 6, in the 6th embodiment of the present utility model, pressure gauge 3 is arranged on the pipeline between reduction valve 2 and the mixture control 5, particular location is arranged on the outlet port and the pipeline between mixture control 5 imports of solenoid valve 4, can slow down the impact of liquid gas like this, improve 3 life-spans of pressure gauge pressure gauge 3.Solenoid valve control circuit 6 can adopt any one circuit among above-mentioned one to five embodiment, and all the other structures are identical with first embodiment.
As shown in Figure 7, among the 7th embodiment of the present utility model, pressure gauge 3 is arranged on the pipeline between reduction valve 2 and the mixture control 5, solenoid valve 4 is after liquified petroleum gas cylinder 1 and between the import of reduction valve 2, make solenoid valve 4 can directly control the firm high pressure liquid gasification that has come out from liquified petroleum gas cylinder 1, make the gas circuit on-off.Like this, because gas circuit is shorter between liquified petroleum gas cylinder 1 and the solenoid valve 4, when cutting off gas circuit, can reduce the issuable leakage of liquid gas.Solenoid valve control circuit 6 can adopt any one circuit among above-mentioned one to five embodiment, and all the other structures are identical with first embodiment.
As shown in Figure 8, in the 8th embodiment of the present utility model, on the pipeline between liquified petroleum gas cylinder 1 and the reduction valve 2, be provided with a filtrating equipment 12, be used for filtering the liquid gas that liquified petroleum gas cylinder 1 comes out, prevent that liquid gas impurity from entering reduction valve 2.Solenoid valve control circuit 6 can adopt among above-mentioned one to five embodiment all the other structures of any one circuit identical with first embodiment.
As shown in Figure 9, the 9th embodiment of the present utility model is on the 8th embodiment's basis, with installing an Emergeny Cutoff Valves 13 additional on the pipeline before reduction valve 2 imports, so that when meeting accident, and the emergency cut-off liquid gas.
When the utility model used, as shown in Figure 1, the liquid gas that liquified petroleum gas cylinder 1 comes out entered reduction valve 2 decompressions by the road, flows to solenoid valve 4 then.At this moment the pressure gauge 3 that is arranged on reduction valve 2 outlet ports indicates the post-decompression pressure of liquid gas.Solenoid valve 4 is closed condition under no electric situation.Main switch 10 in case close, the pulsed voltage that storage battery 9 or magnetogenerator 8 are produced after engine start will be opened solenoid valve 4, makes liquid gas flow to mixture control 5, liquid gas in mixture control 5 with after clean air mixes in proportion, enter cylinder, make engine operation; If disconnect main switch 10, then solenoid valve 4 will cut out, and cut off the liquid gas air feed, and motor will quit work.
Claims (5)
1, a kind of liquefied petroleum gas engine air feeder, have liquified petroleum gas cylinder (1), pressure gauge (3) and mixture control (5), on the pipeline between liquified petroleum gas cylinder (1) and the mixture control (5), be serially connected with reduction valve (2), solenoid valve (4), solenoid valve (4) is electrically connected with solenoid valve control circuit (6), storage battery (9) and main switch (10) series connection in the solenoid valve control circuit (6) is characterized in that:
A, pressure gauge (3) are arranged on the pipeline between reduction valve (2) and the mixture control (5);
Also have magnetogenerator (8) and rectification adjuster (14) in b, the solenoid valve control circuit (6), it is in parallel with storage battery (9) that the lighting loop (7) of magnetogenerator (8) connects rectification adjuster (14) back.
2, liquefied petroleum gas engine air feeder according to claim 1, it is characterized in that: also be in series with switching circuit (15) in solenoid valve control circuit (6), the control end of this switching circuit (15) joins with the output terminal of the lighting loop of its magnetogenerator that is switched on or switched off (8) of control.
3, liquefied petroleum gas engine air feeder according to claim 1, it is characterized in that: in solenoid valve control circuit (6), also be in series with gas leak warning circuit (16), this gas leak warning circuit (16) be mainly by sensor and related circuit thereof constitute can control electromagnetic valve control circuit (6) break-make circuit.
4, liquefied petroleum gas engine air feeder according to claim 2 is characterized in that: also be in series with gas leak warning circuit (16) in solenoid valve control circuit (6).
5, liquefied petroleum gas engine air feeder according to claim 2, it is characterized in that: in solenoid valve control circuit (6), also have gas leak warning circuit (16), one end of one end of this gas leak warning circuit and switching circuit (15) joins, another termination common port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99230221 CN2406071Y (en) | 1999-12-08 | 1999-12-08 | Gas-supplying device for liquified-gas engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99230221 CN2406071Y (en) | 1999-12-08 | 1999-12-08 | Gas-supplying device for liquified-gas engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2406071Y true CN2406071Y (en) | 2000-11-15 |
Family
ID=34019349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99230221 Expired - Fee Related CN2406071Y (en) | 1999-12-08 | 1999-12-08 | Gas-supplying device for liquified-gas engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2406071Y (en) |
-
1999
- 1999-12-08 CN CN 99230221 patent/CN2406071Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |