CN104595539A - Fuel gas pressure reduction mechanism for vehicle - Google Patents
Fuel gas pressure reduction mechanism for vehicle Download PDFInfo
- Publication number
- CN104595539A CN104595539A CN201510032977.6A CN201510032977A CN104595539A CN 104595539 A CN104595539 A CN 104595539A CN 201510032977 A CN201510032977 A CN 201510032977A CN 104595539 A CN104595539 A CN 104595539A
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- Prior art keywords
- spring
- valve
- valve rod
- valve body
- pressure
- 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.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
- F16K1/38—Valve members of conical shape
- F16K1/385—Valve members of conical shape contacting in the closed position, over a substantial axial length, a seat surface having the same inclination
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0466—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with a special seating surface
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/06—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with special arrangements for adjusting the opening pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K49/00—Means in or on valves for heating or cooling
- F16K49/005—Circulation means for a separate heat transfer fluid
- F16K49/007—Circulation means for a separate heat transfer fluid located within the obturating element
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Safety Valves (AREA)
Abstract
The invention discloses a fuel gas pressure reduction mechanism for a vehicle. The fuel gas pressure reduction mechanism comprises a valve body, a gas inlet, a gas outlet and a pressure reduction cavity, wherein a pressure reduction part and a control part are arranged in the pressure reduction cavity; the control part comprises a spring, a valve rod, a membrane, a lever block and a baffle; the two sides of the membrane are respectively connected with one end of the valve rod and one end of the spring; the axial lines of the valve rod and the spring are collinear; the other end of the valve rod is positioned in the pressure reduction cavity; the lever block is positioned between the valve rod and the pressure reduction part and is used for transmitting force between the valve rod and the pressure reduction part; the valve body is further in threaded connection with a pressure adjustment screw for adjusting the deformation amount of the spring. The fuel gas pressure reduction mechanism is simple in structure; the gas discharging pressure and the maximum gas exhaust pressure are convenient to control; the subsequent gas utilization safety of a engine is facilitated, and the phenomenon that the membrane is damaged due to ultrahigh pressure on the membrane can be avoided; meanwhile, force on the two sides of the membrane is more balanced in a working process, so that the elastic deformation amount of the membrane is further reduced, and the service life of the membrane can be favorably prolonged.
Description
Technical field
The present invention relates to pressurized gas decompressor field, particularly relate to a kind of vehicle fuel mechanism of decompressor.
Background technique
Along with rock gas uses more and more extensive, various forms of reduction valve emerges in an endless stream, and will promote the utilization of rock gas further to the further optimization of natural gas depressurization valve arrangement.For environmental consciousness, the fuel that rock gas is used for vehicle motor can reduce Vehicular exhaust pollution greatly, but in order to improve with rock gas the single aeration stroke of the vehicle being fuel, vehicle is provided with gas cylinder for accommodating rock gas, and the gas pressure being finally incorporated into cylinder is generally several kPas, like this, the reduction valve that high-pressure natural gas reduces pressure is seemed particularly important, simultaneously in practice, on the power that the stability of above reduction valve performance has also been reacted to vehicle intuitively even in traffic safety.
The tank internal pressure of prior art mesohigh gas cylinder can reach 20Mpa or higher, high pressure air relief valve is a kind of for the pressure control device in high-pressure gas pipeline system, its output value directly has influence on the running state of follow-up equipment, prior art mesohigh gas decompression valve arrangement mainly diaphragm type and piston type.No matter which kind of structure pressure-reducing valve, because step-down ratio is large, and the diaphragm that two kinds of forms decompression performance is wherein arranged or spring affect larger, and the presbyopic of diaphragm, spring machining accuracy and yield deformation, both in use mechanical property change poor controllability, like this, such that the range of regulation of traditional high pressure air relief valve is little, regulation precision is low, stability in use is poor, working life is short.
Summary of the invention
The diaphragm wherein arranged for above-mentioned existing decompression performance or spring affect larger, and the presbyopic of diaphragm, spring machining accuracy and yield deformation, both in use mechanical property change poor controllability, like this, make that the range of regulation of traditional high pressure air relief valve is little, regulation precision is low, stability in use is poor, the problem that working life is short, the invention provides a kind of vehicle fuel mechanism of decompressor.
For solving the problem, a kind of vehicle fuel mechanism of decompressor provided by the invention solves problem by following technological points: a kind of vehicle fuel mechanism of decompressor, comprise valve body, described valve body is provided with suction port and air outlet, relief chamber is provided with in valve body, be provided with relief portion and the control device for controlling outlet pressure in relief chamber, described relief chamber is connected by relief portion with suction port; Described control device comprises spring, valve rod, diaphragm, lever block and baffle plate, diaphragm arrangement is in the side deviating from relief chamber, the both sides of diaphragm connect one end of valve rod and spring respectively, the axis collinear of valve rod and spring, the other end of spring and valve body contact, the other end of valve rod is positioned at relief chamber, lever block between valve rod and relief portion for the transmission of power between the two;
Described baffle plate is the side of relief chamber, and the edge of diaphragm is fixed on baffle plate, and valve rod coordinates with flapper gap;
The pressure regulating screw described valve body is also threaded for adjusting spring deflection.
Concrete, in the present invention, air-flow is entered by suction port, enters into relief chamber through relief portion, then is flowed out by air outlet.In above process, after air-flow enters into relief chamber, the air pressure of relief chamber increases, air pressure acts on diaphragm by the gap between plate washer and valve rod simultaneously, and when acting on the pressure on diaphragm above and being greater than the bullet stress of spring, valve rod is towards a lateral movement of spring, like this, by lever block transmitting force between valve rod and relief portion, relief portion is closed, and the pressure now in relief chamber reaches maximum value; Along with the exhaust of air outlet, the pressure of relief chamber reduces, and now the elastic force of spring is greater than the gas pressure on diaphragm, and valve rod is away from spring, and relief portion reopens to provide air inlet in relief chamber.In above structure, under original state, preferred spring is in compressive state, and diaphragm the present invention stop using or relief chamber in pressure do not reach maximum value before be fitted on baffle plate, in relief chamber, the maximum value of pressure is convenient to control simultaneously, as the lever block of the spring that adopts elasticity coefficient K different and different magnifiation in depth, turn round and look at outlet pressure maximum value of the present invention to be convenient to control, what be not only conducive to follow-up motor uses gas safety, also help the pressure avoiding diaphragm to be subject to excessive and cause diaphragm impaired, the power that the both sides of simultaneously the present invention diaphragm are in the course of the work subject to is comparatively balanced, be conducive to the elastic deformation amount reducing diaphragm further, be conducive to the working life of diaphragm.
The pressure regulating screw arranged is for adjusting the decrement of spring, like this, amount of spring compression changes, the bullet stress intensity that then spring is applied on diaphragm changes, for keeping diaphragm both sides equilibrium of forces, the negotiability of relief portion will inevitably change, and turns round and look at the object reaching the outlet pressure changing air outlet, the maximum outlet pressure changing air outlet.As a kind of preferred structure, above pressure regulating screw is convenient to the top layer being arranged on valve body, and the axis collinear of the axis of pressure regulating screw and spring, one end that pressure regulating screw stretches into housing acts on the end of spring, the position of the length adjustment spring end stretched into by adjustment pressure regulating screw, and the other end of spring is due to the stop by diaphragm and baffle plate, be convenient to the object reaching adjustment amount of spring compression, like this, when pressure regulating screw gos deep into, outlet pressure and the maximum outlet pressure of the present invention of air outlet become large, anyway reduce.
Further technological scheme is:
For ease of simplifying the structure of lever block, be convenient to manufacture and the assembling in the present invention of lever block, the shape of described lever block is L-shaped, the flex point place of lever block is connected with valve body pin by a pin, lever block is provided with waist-shaped hole on one end of valve rod, is provided with another pin be fixed on valve rod in waist-shaped hole.The lever block of above structure, when stem movement, the pin be positioned on the valve rod shearing stress be applied on waist-shaped hole sidewall forces lever block to rotate around the pin be fixed on valve body, and the free end of lever block acts in relief portion for reducing or close the fluid free air space of relief portion.
As a kind of relief portion being convenient to manufacture, uninterrupted is convenient to control and noise is little, described relief portion is made up of a taper valve core and the conical valve seat be arranged on valve body.
Due to the present invention in the course of the work, pressure size in gas consumption size, source of the gas tank all can change, turn round and look at the process acting as change of lever block and relief portion power, for improving the life-span of the present invention, the taper valve core of described relief portion is also provided with steel ball, and described steel ball is between lever block and the taper valve core of relief portion.Above steel ball is avoided violent sliding friction occurs between lever block and relief portion by rolling friction.
For promoting relief portion in the cutout performance of closing relief portion under operating mode, the taper valve core of described relief portion is or/and conical valve seat is also provided with sealing gasket.
For ease of controlling working state of the present invention, described valve body is also provided with the solenoid valve for controlling suction port on off operating mode.
Heat absorption is needed due in the process that combustion gas is reduced pressure in the present invention, for prevent due to when gaseous-pressure declines owing to can not get heat supplement and cause absorbing heat in subsequent flowing even combustion process timely, as in the process that temperature gradient in continuous firing process of the present invention reduces gradually, easily cause the gaseous-pressure finally entering cylinder excessive, causing stops working even damages cylinder, the water channel for valve body heating is also provided with in valve body described in temperature, the entry end of described water channel and outlet end are respectively water channel entrance and water channel outlet, the temperature transducer near water channel outlet is also provided with in described water channel.Above temperature transducer is convenient to the water-exit temperature monitoring water channel, to determine whether that combustion gas obtains suitable heat supplement in the process of step-down.Further, water-supply line entrance can connect an electronic flow control valve, the output terminal of described temperature transducer is connected on described flow control valve.
The present invention has following beneficial effect:
1, structure of the present invention is simple, and air-flow is entered by suction port, enters into relief chamber through relief portion, then is flowed out by air outlet.In above process, after air-flow enters into relief chamber, the air pressure of relief chamber increases, air pressure acts on diaphragm by the gap between plate washer and valve rod simultaneously, and when acting on the pressure on diaphragm above and being greater than the bullet stress of spring, valve rod is towards a lateral movement of spring, like this, by lever block transmitting force between valve rod and relief portion, relief portion is closed, and the pressure now in relief chamber reaches maximum value; Along with the exhaust of air outlet, the pressure of relief chamber reduces, and now the elastic force of spring is greater than the gas pressure on diaphragm, and valve rod is away from spring, and relief portion reopens to provide air inlet in relief chamber.In above structure, under original state, preferred spring is in compressive state, and diaphragm the present invention stop using or relief chamber in pressure do not reach maximum value before be fitted on baffle plate, in relief chamber, the maximum value of pressure is convenient to control simultaneously, as the lever block of the spring that adopts elasticity coefficient K different and different magnifiation in depth, turn round and look at outlet pressure maximum value of the present invention to be convenient to control, what be not only conducive to follow-up motor uses gas safety, also help the pressure avoiding diaphragm to be subject to excessive and cause diaphragm impaired, the power that the both sides of simultaneously the present invention diaphragm are in the course of the work subject to is comparatively balanced, be conducive to the elastic deformation amount reducing diaphragm further, be conducive to the working life of diaphragm.
2, the pressure regulating screw arranged is for adjusting the decrement of spring, like this, amount of spring compression changes, the bullet stress intensity that then spring is applied on diaphragm changes, for keeping diaphragm both sides equilibrium of forces, the negotiability of relief portion will inevitably change, and turns round and look at the object reaching the outlet pressure changing air outlet, the maximum outlet pressure changing air outlet.
Accompanying drawing explanation
Fig. 1 is the structure front sectional view of a kind of vehicle fuel mechanism of decompressor of the present invention specific embodiment;
Fig. 2 is the side view cutaway drawing of a kind of vehicle fuel mechanism of decompressor of the present invention specific embodiment.
Figure acceptance of the bid note is respectively: 1, spring, and 2, diaphragm, 3, baffle plate, 4, valve rod, 5, air outlet, 6, lever block, 7, solenoid valve, 8, suction port, 9, relief portion, 10, steel ball, 11, relief chamber, 12, pressure regulating screw, 13, water channel, 14, water channel outlet, 15, water channel entrance, 16, temperature transducer.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but structure of the present invention is not limited only to following examples:
Embodiment 1:
As shown in Figure 1, a kind of diaphragm 2 formula automobile decompression mechanism being convenient to protection diaphragm 2, comprise valve body, described valve body is provided with suction port 8 and air outlet 5, relief chamber 11 is provided with in valve body, be provided with relief portion 9 and the control device for controlling outlet pressure in relief chamber 11, described relief chamber 11 is connected by relief portion 9 with suction port 8; Described control device comprises spring 1, valve rod 4, diaphragm 2, lever block 6 and baffle plate 3, diaphragm 2 is arranged on the side deviating from relief chamber 11, the both sides of diaphragm 2 connect one end of valve rod 4 and spring 1 respectively, valve rod 4 and the axis collinear both spring 1, the other end of spring 1 and valve body contact, the other end of valve rod 4 is positioned at relief chamber 11, lever block 6 between valve rod 4 and relief portion 9 for the transmission of power between the two;
Described baffle plate 3 is the side of relief chamber 11, and the edge of diaphragm 2 is fixed on baffle plate 3, valve rod 4 and baffle plate 3 Spielpassung;
The pressure regulating screw 12 described valve body is also threaded for adjusting spring 1 amount of deformation.
In the present embodiment, air-flow is entered by suction port 8, enters into relief chamber 11 through relief portion 9, then is flowed out by air outlet 5.In above process, after air-flow enters into relief chamber 11, the air pressure of relief chamber 11 increases, air pressure acts on diaphragm 2 by the gap between plate washer and valve rod 4 simultaneously, and when acting on the pressure on diaphragm 2 above and being greater than the bullet stress of spring 1, valve rod 4 is towards a lateral movement of spring 1, like this, by lever block 6 transmitting force between valve rod 4 and relief portion 9, relief portion 9 is closed, and the pressure now in relief chamber 11 reaches maximum value; Along with the exhaust of air outlet 5, the pressure of relief chamber 11 reduces, and now the elastic force of spring 1 is greater than the gas pressure on diaphragm 2, and valve rod 4 is away from spring 1, and relief portion 9 reopens to provide air inlet in relief chamber 11.In above structure, under original state, preferred spring 1 is in compressive state, and diaphragm 2 the present invention stop using or relief chamber 11 in pressure do not reach maximum value before be fitted on baffle plate 3, in relief chamber 11, the maximum value of pressure is convenient to control simultaneously, as the lever block 6 of the spring 1 that adopts elasticity coefficient K different and different magnifiation in depth, turn round and look at outlet pressure maximum value of the present invention to be convenient to control, what be not only conducive to follow-up motor uses gas safety, also help the pressure avoiding diaphragm 2 to be subject to excessive and cause diaphragm 2 impaired, the power that the both sides of simultaneously the present invention diaphragm 2 are in the course of the work subject to is comparatively balanced, be conducive to the elastic deformation amount reducing diaphragm 2 further, be conducive to the working life of diaphragm 2.
The pressure regulating screw 12 arranged is for adjusting the decrement of spring 1, like this, spring 1 decrement changes, the bullet stress intensity that then spring 1 is applied on diaphragm 2 changes, for keeping diaphragm 2 both sides equilibrium of forces, the negotiability of relief portion 9 will inevitably change, and turns round and look at the object reaching the outlet pressure changing air outlet 5, the maximum outlet pressure changing air outlet 5.As a kind of preferred structure, above pressure regulating screw 12 is convenient to the top layer being arranged on valve body, and the axis collinear of the axis of pressure regulating screw 12 and spring 1, one end that pressure regulating screw 12 stretches into housing acts on the end of spring 1, the position of length adjustment spring 1 end stretched into by adjustment pressure regulating screw 12, and the other end of spring 1 is due to the stop by diaphragm 2 and baffle plate 3, be convenient to the object reaching adjustment spring 1 decrement, like this, when pressure regulating screw 12 gos deep into, outlet pressure and the maximum outlet pressure of the present invention of air outlet 5 become large, anyway reduce.
Embodiment 2:
The present embodiment is further qualified on the basis of embodiment 1, as shown in Figure 1, for ease of simplifying the structure of lever block 6, be convenient to manufacture and the assembling in the present invention of lever block 6, the shape of described lever block 6 is L-shaped, the flex point place of lever block 6 is connected with valve body pin by a pin, and lever block 6 is provided with waist-shaped hole on one end of valve rod 4, is provided with another pin be fixed on valve rod 4 in waist-shaped hole.The lever block 6 of above structure, when valve rod 4 moves, the pin be positioned on valve rod 4 shearing stress be applied on waist-shaped hole sidewall forces lever block 6 to rotate around the pin be fixed on valve body, and the free end of lever block 6 acts in relief portion 9 for reducing or close the fluid free air space of relief portion 9.
As a kind of relief portion 9 being convenient to manufacture, uninterrupted is convenient to control and noise is little, described relief portion 9 is made up of a taper valve core and the conical valve seat be arranged on valve body.
Embodiment 3:
The present embodiment is further qualified on the basis of embodiment 1, as described in Figure 1, due to the present invention in the course of the work, pressure size in gas consumption size, source of the gas tank all can change, turn round and look at the process acting as change of lever block 6 and relief portion 9 power, for improving the life-span of the present invention, the taper valve core of described relief portion 9 is also provided with steel ball 10, described steel ball 10 is between lever block 6 and the taper valve core of relief portion 9.Above steel ball 10 is avoided, between lever block 6 and relief portion 9, violent sliding friction occurs by rolling friction.
For promoting relief portion 9 in the cutout performance of closing relief portion 9 under operating mode, the taper valve core of described relief portion 9 is or/and conical valve seat is also provided with sealing gasket.
Embodiment 4:
The present embodiment is further qualified on the basis of above embodiment, as depicted in figs. 1 and 2, for ease of controlling working state of the present invention, described valve body is also provided with the solenoid valve 7 for controlling suction port 8 on off operating mode.
Heat absorption is needed due in the process that combustion gas is reduced pressure in the present invention, for prevent due to when gaseous-pressure declines owing to can not get heat supplement and cause absorbing heat in subsequent flowing even combustion process timely, as in the process that temperature gradient in continuous firing process of the present invention reduces gradually, easily cause the gaseous-pressure finally entering cylinder excessive, causing stops working even damages cylinder, the water channel 13 for valve body heating is also provided with in described valve body, the entry end of described water channel 13 and outlet end are respectively water channel entrance 15 and water channel outlet 14, the temperature transducer 16 near water channel outlet 14 is also provided with in described water channel 13.Above temperature transducer 16 for monitoring the water-exit temperature of water channel 13, to determine whether that combustion gas obtains suitable heat supplement in the process of step-down.Further, water-supply line entrance 15 can connect an electronic flow control valve, the output terminal of described temperature transducer 16 is connected on described flow control valve.
Above content is the further description done the present invention in conjunction with concrete preferred implementation, can not assert that the specific embodiment of the present invention is confined to these explanations.For general technical staff of the technical field of the invention, not departing from other mode of executions drawn under technological scheme of the present invention, all should be included in protection scope of the present invention.
Claims (7)
1. a vehicle fuel mechanism of decompressor, comprise valve body, described valve body is provided with suction port (8) and air outlet (5), relief chamber (11) is provided with in valve body, be provided with relief portion (9) and the control device for controlling outlet pressure in relief chamber (11), described relief chamber (11) is connected by relief portion (9) with suction port (8); It is characterized in that, described control device comprises spring (1), valve rod (4), diaphragm (2), lever block (6) and baffle plate (3), diaphragm (2) is arranged on the side deviating from relief chamber (11), the both sides of diaphragm (2) connect one end of valve rod (4) and spring (1) respectively, valve rod (4) and spring (1) both axis collinear, the other end of spring (1) and valve body contact, the other end of valve rod (4) is positioned at relief chamber (11), and lever block (6) is positioned at the transmission for power between the two between valve rod (4) and relief portion (9);
The side that described baffle plate (3) is relief chamber (11), and the edge of diaphragm (2) is fixed on baffle plate (3), valve rod (4) and baffle plate (3) Spielpassung;
The pressure regulating screw (12) described valve body is also threaded for adjusting spring (1) amount of deformation.
2. a kind of vehicle fuel mechanism of decompressor according to claim 1, it is characterized in that, the shape of described lever block (6) is L-shaped, the flex point place of lever block (6) is connected with valve body pin by a pin, lever block (6) is provided with waist-shaped hole on one end of valve rod (4), is provided with another pin be fixed on valve rod (4) in waist-shaped hole.
3. a kind of vehicle fuel mechanism of decompressor according to claim 1, is characterized in that, described relief portion (9) is made up of a taper valve core and the conical valve seat be arranged on valve body.
4. a kind of vehicle fuel mechanism of decompressor according to claim 3, is characterized in that, the taper valve core of described relief portion (9) is also provided with steel ball (10), and described steel ball (10) is positioned between the taper valve core of lever block (6) and relief portion (9).
5. a kind of vehicle fuel mechanism of decompressor according to claim 3, is characterized in that, the taper valve core of described relief portion (9) is or/and conical valve seat is also provided with sealing gasket.
6. according to a kind of vehicle fuel mechanism of decompressor in claim 1 to 5 described in any one, it is characterized in that, described valve body being also provided with the solenoid valve (11) for controlling suction port (8) on off operating mode.
7. according to a kind of vehicle fuel mechanism of decompressor in claim 1 to 5 described in any one, it is characterized in that, the water channel (13) for valve body heating is also provided with in described valve body, the entry end of described water channel (13) and outlet end are respectively water channel entrance (15) and water channel outlet (14), are also provided with the temperature transducer (16) near water channel outlet (14) in described water channel (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510032977.6A CN104595539A (en) | 2015-01-23 | 2015-01-23 | Fuel gas pressure reduction mechanism for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510032977.6A CN104595539A (en) | 2015-01-23 | 2015-01-23 | Fuel gas pressure reduction mechanism for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104595539A true CN104595539A (en) | 2015-05-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510032977.6A Pending CN104595539A (en) | 2015-01-23 | 2015-01-23 | Fuel gas pressure reduction mechanism for vehicle |
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| Country | Link |
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| CN (1) | CN104595539A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112081973A (en) * | 2020-09-30 | 2020-12-15 | 上海燃料电池汽车动力***有限公司 | Lever type pressure reducing valve and regulating and controlling method thereof |
-
2015
- 2015-01-23 CN CN201510032977.6A patent/CN104595539A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112081973A (en) * | 2020-09-30 | 2020-12-15 | 上海燃料电池汽车动力***有限公司 | Lever type pressure reducing valve and regulating and controlling method thereof |
| CN112081973B (en) * | 2020-09-30 | 2022-06-17 | 上海燃料电池汽车动力***有限公司 | Lever type pressure reducing valve and regulating and controlling method thereof |
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Application publication date: 20150506 |
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