CN104373650A - Leaf spring type constant pressure valve - Google Patents
Leaf spring type constant pressure valve Download PDFInfo
- Publication number
- CN104373650A CN104373650A CN201410662283.6A CN201410662283A CN104373650A CN 104373650 A CN104373650 A CN 104373650A CN 201410662283 A CN201410662283 A CN 201410662283A CN 104373650 A CN104373650 A CN 104373650A
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- CN
- China
- Prior art keywords
- constant pressure
- valve
- valve seat
- leaf spring
- steel ball
- 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.)
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Classifications
-
- 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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
The invention discloses a leaf spring type constant pressure valve which comprises a valve base and a steel ball. A constant pressure cavity is formed inside the valve base. The two ends of the constant pressure cavity are provided with an oil inlet and an oil outlet respectively. The steel ball is arranged at the position of an oil outlet of the valve base. A bent leaf spring is installed on the valve base. The leaf spring is composed of a connecting portion, a supporting portion and an abutting pressing portion. The connecting portion of the leaf spring is fixedly connected to the valve base. The supporting portion of the leaf spring is supported on a pin shaft installed on the valve base to form a supporting point of the leaf spring. The abutting pressing portion of the leaf spring is pressed on the steel ball in an abutting mode so that the steel ball and the oil outlet of the valve base can form a sealing state. The leaf spring type constant pressure valve is simple and reasonable in structure, interference caused by the insufficient extending space will not be caused when the size of the valve is decreased, the oil conveying stability can be well kept, the service life of an engine is prolonged, and noise generated by the valve can be greatly reduced.
Description
Technical field
The present invention relates to valve technology field, be specifically related to a kind of spring-piece type constant pressure valve.
Background technique
Constant pressure valve has important effect in automobile fuel injection system, when in fuel tank, oil is extracted out and is used to motor by oil pump, certain pressure is needed in oil transportation road, the oil that guarantee sprays into motor is desirable vaporific, be fully burned to make oil, and the pressure in order to enable oil transportation road remain required, need to add constant pressure valve at oil-way system.When constant pressure valve works in oil circuit, the cracking pressure of constant pressure valve can become large along with the increasing of flow, the curve that the change increasing constant pressure valve pressure along with flow generates we be called the slope curve of constant pressure valve, slope curve is more mild undoubtedly more can by Stress control so in the scope wanted, system of can withdrawing deposit out be more stable.But, the existing constant pressure valve in market is mostly spring constant pressure valve, and spring constant pressure valve is when the volume of valve is too small, the extending space of spring is inadequate, the slope curve of constant pressure valve will steepening, the pressure transient on oil transportation road can be made, make the fuel oil of supply engine abnormal, easily damage is caused to motor, and the oil in oil pump supply oil circuit is not whole piece continuous print fluid, but be made up of sectional fluid, thus there is certain vibration frequency in the fluid making oil be formed, fluid like this with vibration frequency can be delivered on spring through constant pressure valve, and spring itself there is very large damping change, when the frequency of fluid is consistent with the frequency of spring constant pressure valve inner spring, both can produce resonance, the entirety of valve is shaken double, thus make valve produce ear-piercing vibrating noise.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of spring-piece type constant pressure valve, it is simple and reasonable, the interference of extending space deficiency can not be subject to when valve volume-diminished, can be good at keeping fluid conveying stability, be conducive to increasing service life of engine, and greatly can reduce the noise that valve produces.
In order to solve the problem existing for background technique, present invention employs following technological scheme: a kind of spring-piece type constant pressure valve, comprise valve seat and steel ball, constant voltage chamber is provided with in described valve seat, the two ends in described constant voltage chamber are respectively filler opening and oil outlet, described steel ball is arranged at the oil outlet place of valve seat, described valve seat is installed and is provided with a bending shell fragment, described shell fragment is by joint, supporting portion and pressure section are formed, the joint of described shell fragment is fixedly connected on valve seat, the supporting portion of described shell fragment to be supported on a bearing pin being installed on valve seat and to form the fulcrum of shell fragment, the pressure section of described shell fragment closely presses on described steel ball and makes the oil outlet of steel ball and valve seat form sealing state.
By adopting above-mentioned technological scheme, this constant pressure valve can not be subject to the interference of extending space deficiency when valve volume-diminished, thus constant pressure valve slope curve can remain stable in the constant pressure valve structure of small volume structure, can be good at keeping fluid conveying stability in fuel transfer system, be conducive to increasing service life of engine, and due to shell fragment damping change less, the vibrations produced when shell fragment contacts with the fluid of vibrations are less, thus greatly can reduce the noise that valve produces, and wherein can change by the artificial adjustment bearing pin position be positioned on valve seat the position that supporting portion forms shell fragment fulcrum, thus can adjust the power of shell fragment effect and steel ball.
The further setting of the present invention: the outer wall of described valve seat is provided with annular groove, is provided with sealing ring in described annular groove.
By adopting above-mentioned technological scheme, thus when fluid constantly flows into from the filler opening of valve seat, the setting of sealing ring can be good at the phenomenon avoiding fluid to be infiltrated by the outer wall of valve seat, to ensure the normal use of constant pressure valve.
The further setting of the present invention: described sealing ring is made up of copper material.
By adopting above-mentioned technological scheme, thus can avoid sealing the phenomenon that ring uses rear generation corrosion for a long time, considerably increasing the working life of sealing ring.
The further setting of the present invention: described valve seat is made by the alloyed steel of ion nitriding process treating.
By adopting above-mentioned technological scheme, the hardness of its valve seat, fatigue resistance, corrosion resistance and red hardness all have greatly improved, thus are conducive to the working life extending whole constant pressure valve.
Beneficial effect of the present invention is: spring-piece type constant pressure valve of the present invention can not be subject to the interference of extending space deficiency when valve volume-diminished, thus slope curve can remain stable in the constant pressure valve structure of small volume structure, can be good at keeping fluid conveying stability in fuel transfer system, be conducive to increasing service life of engine, and due to shell fragment damping change little, the vibrations produced when shell fragment contacts with the fluid of vibrations are less, thus greatly can reduce the noise that valve produces.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of spring-piece type constant pressure valve of the present invention.
Embodiment
In order to make content of the present invention more clear, below in conjunction with embodiment, the present invention is described in further detail.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
As shown in Figure 1, a kind of spring-piece type constant pressure valve of the embodiment of the present invention, comprise valve seat 1 and steel ball 2, constant voltage chamber 11 is provided with in its valve seat 1, the two ends in constant voltage chamber 11 are respectively filler opening 12 and oil outlet 13, its steel ball 2 is arranged at oil outlet 13 place of valve seat 1, further, valve seat 1 is installed and is provided with a bending shell fragment 3, this shell fragment 3 is by joint 31, supporting portion 32 and pressure section 33 are formed, the joint 31 of its shell fragment 3 is fixedly connected on valve seat 1, the supporting portion 32 of shell fragment 3 to be supported on a bearing pin 4 being installed on valve seat 1 and to form the fulcrum of shell fragment 3, the pressure section 33 of shell fragment 3 closely presses on steel ball 2 and makes steel ball 2 and the oil outlet 13 of valve seat 1 form sealing state, this constant pressure valve can not be subject to the interference of extending space deficiency when valve volume-diminished, thus constant pressure valve slope curve can remain stable in the constant pressure valve structure of small volume structure, can be good at keeping fluid conveying stability in fuel transfer system, be conducive to increasing service life of engine, and due to shell fragment 3 damping change less, the vibrations produced when shell fragment 3 contacts with the fluid of vibrations are less, thus greatly can reduce the noise that valve produces.
In the embodiment of the present invention, the outer wall of valve seat 1 is provided with annular groove 14, sealing ring 5 is provided with in this annular groove 14, thus when fluid constantly flows into from the filler opening 12 of valve seat 1, the setting of sealing ring 5 can be good at the phenomenon avoiding fluid to be infiltrated by the outer wall of valve seat 1, to ensure the normal use of constant pressure valve, wherein seal ring 5 to be made up of copper material, thus can avoid sealing the phenomenon producing corrosion after ring 5 uses for a long time, considerably increase the working life of sealing ring 5.
In the embodiment of the present invention, valve seat 1 is made by the alloyed steel of ion nitriding process treating, and the hardness of its valve seat 1, fatigue resistance, corrosion resistance and red hardness all have greatly improved, thus are conducive to the working life extending whole constant pressure valve.
The working principle of spring-piece type constant pressure valve of the present invention: when the oil mass that filler opening 12 enters is too much, the oil outlet 13 place pressure of constant pressure valve will increase gradually, thus fluid to steel ball 2 by formation one and the rightabout power of shell fragment 3, both steel ball 2 can be pushed open, steel ball 2 moves downward, thus steel ball 2 and oil outlet 13 form certain interval, the gap formed by steel ball 2 and oil outlet 13 is discharged by unnecessary fluid, when oil outlet 13 place, pressure diminishes gradually, when fluid is less than to the power that steel ball 2 is formed the pressure that shell fragment 3 bending deflection produces, thus steel ball 2 and oil outlet 13 will form sealing again, constant pressure valve forms closed condition.Wherein, the position of shell fragment 3 fulcrum can be changed by artificially adjusting bearing pin 4 position be positioned on valve seat 1, thus can to act on shell fragment 3 and the power of steel ball 2 adjusts.
Claims (4)
1. a spring-piece type constant pressure valve, comprise valve seat and steel ball, constant voltage chamber is provided with in described valve seat, the two ends in described constant voltage chamber are respectively filler opening and oil outlet, described steel ball is arranged at the oil outlet place of valve seat, it is characterized in that: described valve seat is installed and is provided with a bending shell fragment, described shell fragment is by joint, supporting portion and pressure section are formed, the joint of described shell fragment is fixedly connected on valve seat, the supporting portion of described shell fragment to be supported on a bearing pin being installed on valve seat and to form the fulcrum of shell fragment, the pressure section of described shell fragment closely presses on described steel ball and makes the oil outlet of steel ball and valve seat form sealing state.
2. a kind of spring-piece type constant pressure valve according to claim 1, is characterized in that: the outer wall of described valve seat is provided with annular groove, is provided with sealing ring in described annular groove.
3. a kind of spring-piece type constant pressure valve according to claim 2, is characterized in that: described sealing ring is made up of copper material.
4. a kind of spring-piece type constant pressure valve according to claim 1, is characterized in that: described valve seat is made by the alloyed steel of ion nitriding process treating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410662283.6A CN104373650A (en) | 2014-11-18 | 2014-11-18 | Leaf spring type constant pressure valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410662283.6A CN104373650A (en) | 2014-11-18 | 2014-11-18 | Leaf spring type constant pressure valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104373650A true CN104373650A (en) | 2015-02-25 |
Family
ID=52552732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410662283.6A Pending CN104373650A (en) | 2014-11-18 | 2014-11-18 | Leaf spring type constant pressure valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104373650A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110497341A (en) * | 2019-09-05 | 2019-11-26 | 深圳市深科达智能装备股份有限公司 | The Vacuum Balance structure of vacuum chamber |
| CN111022716A (en) * | 2019-11-19 | 2020-04-17 | 中国第一汽车股份有限公司 | Differential pressure regulating valve and reactant supply system for fuel cell |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2382911Y (en) * | 1999-06-22 | 2000-06-14 | 冯洪志 | Flat valve for slag |
| US20030196702A1 (en) * | 2001-02-16 | 2003-10-23 | Robert Bosch Gmbh | Pressure regulator |
| WO2003102408A1 (en) * | 2002-06-04 | 2003-12-11 | Robert Bosch Gmbh | Pressure regulator for a fuel supply system of an internal combustion engine |
| CN1508426A (en) * | 2002-11-14 | 2004-06-30 | ��ʽ��������Զ�֯�������� | Control valve for volume-variable compressor |
| EP1480098A1 (en) * | 2003-05-19 | 2004-11-24 | Robert Bosch Gmbh | Pressure regulator |
| CN1756904A (en) * | 2003-03-03 | 2006-04-05 | 罗伯特·博世有限公司 | Pressure regulator |
| CN204226772U (en) * | 2014-11-18 | 2015-03-25 | 温州仁谦汽车油泵有限公司 | A kind of spring-piece type constant pressure valve |
-
2014
- 2014-11-18 CN CN201410662283.6A patent/CN104373650A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2382911Y (en) * | 1999-06-22 | 2000-06-14 | 冯洪志 | Flat valve for slag |
| US20030196702A1 (en) * | 2001-02-16 | 2003-10-23 | Robert Bosch Gmbh | Pressure regulator |
| WO2003102408A1 (en) * | 2002-06-04 | 2003-12-11 | Robert Bosch Gmbh | Pressure regulator for a fuel supply system of an internal combustion engine |
| CN1508426A (en) * | 2002-11-14 | 2004-06-30 | ��ʽ��������Զ�֯�������� | Control valve for volume-variable compressor |
| CN1756904A (en) * | 2003-03-03 | 2006-04-05 | 罗伯特·博世有限公司 | Pressure regulator |
| EP1480098A1 (en) * | 2003-05-19 | 2004-11-24 | Robert Bosch Gmbh | Pressure regulator |
| CN204226772U (en) * | 2014-11-18 | 2015-03-25 | 温州仁谦汽车油泵有限公司 | A kind of spring-piece type constant pressure valve |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110497341A (en) * | 2019-09-05 | 2019-11-26 | 深圳市深科达智能装备股份有限公司 | The Vacuum Balance structure of vacuum chamber |
| CN110497341B (en) * | 2019-09-05 | 2024-05-17 | 深圳市深科达智能装备股份有限公司 | Vacuum balance structure of vacuum chamber |
| CN111022716A (en) * | 2019-11-19 | 2020-04-17 | 中国第一汽车股份有限公司 | Differential pressure regulating valve and reactant supply system for fuel cell |
| CN111022716B (en) * | 2019-11-19 | 2022-01-14 | 中国第一汽车股份有限公司 | Differential pressure regulating valve and reactant supply system for fuel cell |
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150225 |