CN204226772U - A kind of spring-piece type constant pressure valve - Google Patents
A kind of spring-piece type constant pressure valve Download PDFInfo
- Publication number
- CN204226772U CN204226772U CN201420693217.0U CN201420693217U CN204226772U CN 204226772 U CN204226772 U CN 204226772U CN 201420693217 U CN201420693217 U CN 201420693217U CN 204226772 U CN204226772 U CN 204226772U
- Authority
- CN
- China
- Prior art keywords
- valve seat
- shell fragment
- steel ball
- valve
- constant 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.)
- Expired - Fee Related
Links
Landscapes
- Safety Valves (AREA)
Abstract
The utility model discloses 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.The utility model is simple and reasonable, can not be subject to the interference of extending space deficiency when valve volume-diminished, can be good at keeping fluid conveying stability, is conducive to increasing service life of engine, and greatly can reduces the noise that valve produces.
Description
Technical field
The utility model relates to valve technology field, is 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.
Model utility content
The technical problems to be solved in the utility model 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, the utility model have employed 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.
Further setting of the present utility model: 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.
Further setting of the present utility model: 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.
Further setting of the present utility model: 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.
The beneficial effects of the utility model are: spring-piece type constant pressure valve of the present utility model 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 utility model.
Embodiment
In order to make content of the present utility model more clear, below in conjunction with embodiment, the utility model is described in further detail.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1, a kind of spring-piece type constant pressure valve of the utility model embodiment, 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 utility model embodiment, 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 utility model embodiment, 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 utility model: 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 |
|---|---|---|---|
| CN201420693217.0U CN204226772U (en) | 2014-11-18 | 2014-11-18 | A kind of spring-piece type constant pressure valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420693217.0U CN204226772U (en) | 2014-11-18 | 2014-11-18 | A kind of spring-piece type constant pressure valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204226772U true CN204226772U (en) | 2015-03-25 |
Family
ID=52924870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420693217.0U Expired - Fee Related CN204226772U (en) | 2014-11-18 | 2014-11-18 | A kind of spring-piece type constant pressure valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204226772U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104373650A (en) * | 2014-11-18 | 2015-02-25 | 温州仁谦汽车油泵有限公司 | Leaf spring type constant pressure valve |
-
2014
- 2014-11-18 CN CN201420693217.0U patent/CN204226772U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104373650A (en) * | 2014-11-18 | 2015-02-25 | 温州仁谦汽车油泵有限公司 | Leaf spring type constant pressure valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204755706U (en) | But varistor buddhist nun singly goes out pole valve attenuator | |
| CN204226772U (en) | A kind of spring-piece type constant pressure valve | |
| CN104373650A (en) | Leaf spring type constant pressure valve | |
| CN202203466U (en) | Water inlet flow stabilization valve | |
| CN203939543U (en) | Valve gear | |
| CN203321466U (en) | Mechanical self-regulating flow stabilizing device | |
| KR20120010881A (en) | a variable compression ratio apparatus for a vehicle's engine | |
| CN203308579U (en) | Gasoline engine with deflection type crank | |
| CN103899463A (en) | Multi-stage buffer type relief valve | |
| CN201874667U (en) | Double-lip mouth combustion chamber for heavy-duty diesel engine | |
| CN208220946U (en) | A kind of DE distribution shell | |
| CN102032036B (en) | Double-lip combustion chamber for heavy diesel engine | |
| CN202250295U (en) | Oil joint of turbocharger of diesel | |
| CN202202977U (en) | Piston ring of gasoline engine | |
| CN203640888U (en) | Automobile oil pressure regulator | |
| CN206035672U (en) | Car gas burner | |
| CN103867296A (en) | Gasoline engine | |
| CN202148956U (en) | Flow stabilizer for electronic injection fuel pump | |
| CN205190914U (en) | Magnetism helping hand gas pressure regulator | |
| CN204003139U (en) | Piston for ethanol fuel engine | |
| CN201851351U (en) | Novel pump body of large JB radial variable plunger pump | |
| CN204704019U (en) | A kind of cylinder with automatic pressure reducing function | |
| CN201753622U (en) | Air valve guide rod oil seal | |
| CN203403988U (en) | Fuel-saving accelerator with air regulating valve | |
| CN204041836U (en) | Bottom valve of shock absorber assembly |
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: 20150325 Termination date: 20181118 |