CN2370170Y - Electric control flow regulation pressure reducing valve for gasous fuel automobile - Google Patents
Electric control flow regulation pressure reducing valve for gasous fuel automobile Download PDFInfo
- Publication number
- CN2370170Y CN2370170Y CN 99231159 CN99231159U CN2370170Y CN 2370170 Y CN2370170 Y CN 2370170Y CN 99231159 CN99231159 CN 99231159 CN 99231159 U CN99231159 U CN 99231159U CN 2370170 Y CN2370170 Y CN 2370170Y
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- Prior art keywords
- valve
- flow
- valve body
- rate adjustment
- automatically controlled
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- Expired - Fee Related
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Abstract
The utility model provides an electric control flow regulating pressure reducing valve used for gas combustion vehicles, which comprises a valve body with a fuel gas input port and a fuel gas output port, a pressure reducing flow regulating valve positioned on the valve body and communicated with the fuel gas input port, and a load pressure regulating assembly positioned above the pressure reducing flow regulating valve. The utility model is characterized in that a flow regulating valve communicated with the fuel gas output port and an electric control flow regulating execution assembly for controlling the operating of the flow regulating valve are arranged on the valve body, and a fuel gas passage is arranged between the pressure reducing flow regulating valve and the flow regulating valve. The utility model has the advantages of simple structure, small volume, high reliability, reduced manufacture cost, improved control precision of motor air-fuel ratio and improved motor capacity factor.
Description
The utility model relates to a kind of Flow-rate adjustment reduction valve when making alternative motor fuels with compressed natural gas (CNG) and liquefied petroleum gas (LPG) gaseous fuels such as (LPG), particularly be a kind of automatically controlled Flow-rate adjustment reduction valve that is used on the gaseous fuel automobile.
Gas combustion automobile adopts three grades of reduction valve mostly both at home and abroad, with the high-pressure gas decompression, delivers to mixer and regulates air fuel ratio, the supply engine burning.Or, deliver to automatically controlled high velocity fuel injection valve and spray into motor and burn through three grades of post-decompression combustion gas of reduction valve.Above-mentioned first kind reduction valve volume is big, cost height, air fuel ratio control accuracy are poor, second kind of control accuracy height that adds automatically controlled back, air fuel ratio, but its high velocity jet valve accuracy of manufacturing requires height, manufacturing difficulty, cost is high and the volume of three grades of reduction valve is big, cost is high.
The purpose of this utility model is in order to provide a kind of simple in structure, volume is little, and the reliability height reduces manufacture cost, can improve the control accuracy of engine air-fuel ratio, improve the automatically controlled Flow-rate adjustment reduction valve on the gaseous fuel automobile of being used for of the power of motor and Economy.
The purpose of this utility model is achieved like this: the utility model comprises the valve body that contains combustion gas inlet opening and combustion gas delivery outlet, be positioned at the decompression throttle valve that communicates with the combustion gas inlet opening on the valve body, what be positioned at decompression throttle valve top adds the voltage adjustment of on-load assembly, it is characterized in that the flow control valve that communicates with the combustion gas delivery outlet is arranged on valve body, the automatically controlled executive module of Flow-rate adjustment of control flow rate modulating valve work has blast tube (referring to Fig. 1) between decompression throttle valve and flow control valve.
The movably shifting axle that links to each other with valve on the flow control valve is arranged in the automatically controlled executive module of above-mentioned Flow-rate adjustment, the solenoid valve that the control shifting axle moves, close spring (referring to Fig. 1) on the valve body there being an end to be close on the shifting axle, the solenoid valve available motor replaces.
Corresponding on the above-mentioned valve body has the pressure transducer that detects the fuel delivery pressure on the Flow-rate adjustment valve position, the combustion gas equipped at outlet port has the flow transducer (referring to Fig. 1) that detects output flow, and pressure transducer and flow transducer all can have been bought on market.
Heating water channel (referring to Fig. 1) is arranged on the above-mentioned valve body.
Compared with the prior art, the utlity model has following advantage:
1. reduce pressure throttle valve and flow control valve is set to one, and be simple in structure, cost is low, reliability is high.
2. adopt the automatically controlled executive module of Flow-rate adjustment to improve operating accuracy and sensitivity.
3. adopt flow transducer and pressure transducer to detect, improved measuring accuracy, convenient control.
4. adopt the combination of electronic control technology and mechanical structure, and become the Flow-rate adjustment reduction valve of alternative motor fuels.Improve the engine air-fuel ratio control accuracy, improved engine power and Economy.
Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing:
Fig. 1 is the utility model structural representation.
Referring to Fig. 1, valve body 1 comprises main valve body 4 that contains combustion gas input screw 2 and combustion gas output screw 3 and the upper shell 5 that is threaded with the main valve body top.The valve 8 that contains valve base 7, cooperates with valve base, the decompression throttle valve 10 of closing spring 9 are loaded on the main valve body and with combustion gas input screw and communicate.Adding pressure regulation sensing element 12 in the voltage adjustment of on-load assembly 11 is loaded on the upper shell and is positioned at upper shell, adjusting bolt 13 threaded one ends pass the upper shell top and stretch in the upper shell, between adjusting bolt 13 and pressure regulation sensing element loading element are housed---pressure spring 14.The flow control valve 17 that contains valve base 15 and valve 16 is contained in the main valve body and with combustion gas output screw and communicates.The shell 6 of the solenoid valve 25 in the automatically controlled executive module 18 of Flow-rate adjustment stretches into the main valve body below and is threaded with main valve body, and electromagnetic coil 26 is positioned at shell.Shifting axle 19 is loaded on the shell and with valve 16 and becomes one.Closing spring 20 is enclosed within on the shifting axle and two ends press closer on valve 16 and shell end face.The solenoid valve 25 drive shifting axles that are contained on the shell move.Between decompression throttle valve and flow control valve, the blast tube 21 that two valves are communicated is arranged.On combustion gas output screw, flow transducer 22 is housed and on main valve body, pressure transducer 23 is housed with the relevant position of flow control valve.Hot water channel 24 is arranged on main valve body.
The utility model is installed on the motor car engine, passes in the automatically controlled executive module control flow rate of Flow-rate adjustment modulating valve after the signal processing that adopts existing computer control technology flow transducer, pressure transducer etc. can be collected and regulate the combustion gas output quantity.
Referring to Fig. 1, before high-pressure gas arrives decompression throttle valve 10 by combustion gas input screw 2, under the active force of pressure regulation sensing element 12 and loading element 14, compressing valve 8 moves down, little gap appears in 8 on valve base 7 and valve, because little gap has throttling action, back at the decompression throttle valve to producing decompression phenomenon (its pressure relief value is mainly by the pressure regulation sensing element, loading element and to regulate bolt 13 definite).Arrive the front of flow control valves through post-decompression low-pressure fuel gas through blast tube 21, gas flow what change through the regulating action of flow control valve.The control of its gas flow is mainly by automatically controlled executive module 18 decisions of Flow-rate adjustment: when solenoid valve 25 energisings, drive shifting axle 19 and move down, the gap appears in 16 on valve base 15 and valve, combustion gas flows to combustion gas output screw socket through the gap, when the gap was big, gas quantity was big, otherwise then little.When the solenoid valve outage, shifting axle moves up under the effect of closing spring 20, forces valve to be close to valve base, and no combustion gas is passed through.Flow transducer and pressure transducer provide what signal of output combustion gas, for the automatically controlled executive module work of Flow-rate adjustment.
Claims (5)
1, be used for the automatically controlled Flow-rate adjustment reduction valve on the gaseous fuel automobile, comprise the valve body that contains combustion gas inlet opening and combustion gas delivery outlet, be positioned at the decompression throttle valve that communicates with the combustion gas inlet opening on the valve body, what be positioned at decompression throttle valve top adds the voltage adjustment of on-load assembly, it is characterized in that the flow control valve that communicates with the combustion gas delivery outlet is arranged on valve body, the automatically controlled executive module of Flow-rate adjustment of control flow rate modulating valve work has blast tube between decompression throttle valve and flow control valve.
2, the automatically controlled Flow-rate adjustment reduction valve that is used on the gaseous fuel automobile according to claim 1, it is characterized in that having in the automatically controlled executive module of Flow-rate adjustment the movably shifting axle that links to each other with valve on the flow control valve, the solenoid valve that moves of control shifting axle is having an end to be close to the spring of cutting out on the valve body on the shifting axle.
3, the automatically controlled Flow-rate adjustment reduction valve that is used on the gaseous fuel automobile according to claim 1 and 2, it is characterized in that the pressure transducer that detects the fuel delivery pressure being arranged corresponding on the valve body on the Flow-rate adjustment valve position, the combustion gas equipped at outlet port has the flow transducer that detects output flow.
4, the automatically controlled Flow-rate adjustment reduction valve that is used on the gaseous fuel automobile according to claim 1 and 2 is characterized in that the heating water channel is arranged on valve body.
5, the automatically controlled Flow-rate adjustment reduction valve that is used on the gaseous fuel automobile according to claim 3 is characterized in that the heating water channel is arranged on valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99231159 CN2370170Y (en) | 1999-03-18 | 1999-03-18 | Electric control flow regulation pressure reducing valve for gasous fuel automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99231159 CN2370170Y (en) | 1999-03-18 | 1999-03-18 | Electric control flow regulation pressure reducing valve for gasous fuel automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2370170Y true CN2370170Y (en) | 2000-03-22 |
Family
ID=34020079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99231159 Expired - Fee Related CN2370170Y (en) | 1999-03-18 | 1999-03-18 | Electric control flow regulation pressure reducing valve for gasous fuel automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2370170Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103133735A (en) * | 2013-03-13 | 2013-06-05 | 成都莱达机械电子有限公司 | Reducing valve |
| CN110094279A (en) * | 2019-04-23 | 2019-08-06 | 武汉洪斯德汽车有限公司 | Can accurate flow adjustment pressure reducing valve |
| CN111876167A (en) * | 2020-08-19 | 2020-11-03 | 鞍山华泰环能工程技术有限公司 | Gas flow adjusting device and coke oven |
-
1999
- 1999-03-18 CN CN 99231159 patent/CN2370170Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103133735A (en) * | 2013-03-13 | 2013-06-05 | 成都莱达机械电子有限公司 | Reducing valve |
| CN110094279A (en) * | 2019-04-23 | 2019-08-06 | 武汉洪斯德汽车有限公司 | Can accurate flow adjustment pressure reducing valve |
| CN111876167A (en) * | 2020-08-19 | 2020-11-03 | 鞍山华泰环能工程技术有限公司 | Gas flow adjusting device and coke oven |
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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 |