CN204729200U - A kind of fuel pressure regulator - Google Patents
A kind of fuel pressure regulator Download PDFInfo
- Publication number
- CN204729200U CN204729200U CN201520443826.5U CN201520443826U CN204729200U CN 204729200 U CN204729200 U CN 204729200U CN 201520443826 U CN201520443826 U CN 201520443826U CN 204729200 U CN204729200 U CN 204729200U
- Authority
- CN
- China
- Prior art keywords
- steel ball
- diaphragm
- oil return
- upper shell
- return nozzle
- 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
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Abstract
The utility model discloses a kind of fuel pressure regulator, comprise upper shell and lower shell body, diaphragm is provided with between described upper shell and lower shell body, the cavity that upper shell and lower shell body are formed is divided into stilling chamber and fuel oil room by described diaphragm, spring is provided with in stilling chamber, spring bottom is connected with diaphragm by press table, the relative side of described diaphragm is provided with steel ball seat, described lower shell body is provided with filler opening and oil return nozzle, the steel ball compression seal of oil return nozzle by coordinating with steel ball seat, the end face that described steel ball contacts with oil return nozzle is provided with round platform, it is inclined-plane sealing between round platform and oil return nozzle.The utility model good airproof performance, pressurize is reliable and stable, and by adjusting screw Regulation spring pressure, simple to operation.
Description
Technical field
The utility model belongs to regulator field, particularly relates to a kind of fuel pressure regulator.
Background technique
Fuel pressure regulator be ensure automobile oil-way intermediate fuel oil pressure normal parts, there is a diaphragm pressure regulator inside, play oil circuit control internal pressure size, when oil pressure is lower than certain value, scavenger valve cuts out oil pump pressurization makes oil circuit internal pressure increase, after increasing to above authorized pressure, the fuel oil that overvoltage opened by scavenger valve flows back to fuel tank by return line, and oil circuit internal pressure is reduced.Make sealing completely of steel ball and return tube, contact end face requirement on machining accuracy for steel ball and return tube is higher, and the impurity of generation directly enters fuel oil room due to oil pump wearing and tearing, what these impurity can scratch or stick in steel ball and return tube contacts end face, build-up of pressure regulator can not seal completely, causes pressure maintaining performance to reduce.
Model utility content
The purpose of this utility model is: for overcoming the deficiencies in the prior art, provides a kind of good airproof performance, and pressure maintaining performance is strong, the fuel pressure regulator that spring pressure is adjustable.
For achieving the above object, the technical solution of the utility model is:
A kind of fuel pressure regulator, comprise upper shell and lower shell body, diaphragm is provided with between described upper shell and lower shell body, the cavity that upper shell and lower shell body are formed is divided into stilling chamber and fuel oil room by described diaphragm, spring is provided with in stilling chamber, spring bottom is connected with diaphragm by press table, the relative side of described diaphragm is provided with steel ball seat, described lower shell body is provided with filler opening and oil return nozzle, the steel ball compression seal of oil return nozzle by coordinating with steel ball seat, the end face that described steel ball contacts with oil return nozzle is provided with round platform, it is inclined-plane sealing between round platform and oil return nozzle.
Further, be provided with top board between spring top and upper shell, adjusting screw one end is through the depressed part extruding top board of upper shell.
Further, packing ring is provided with between press table and steel ball seat.
Owing to have employed such scheme, the beneficial effects of the utility model are: solve the deficiencies in the prior art, this fuel pressure regulator by increasing the area of contact between oil return nozzle and steel ball, thus makes the better tightness between oil return nozzle and steel ball, and fuel pressure is stablized; After pressure reconciles indoor spring Long-Time Service, elasticity coefficient reduces, and the depressed part of upper shell is provided with adjusting screw, and not only adjustable springs pressure, and screw is arranged on depressed part can not disturb peripheral component.
Accompanying drawing explanation
Fig. 1 is sectional view of the present utility model.
Reference character: 1-upper shell, 2-stilling chamber, 3-lower shell body, 4-fuel oil room, 5-diaphragm, 11-depressed part, 21-press table, 22-packing ring, 23-spring, 24-top board, 25-adjusting screw, 31-filler opening, 41-steel ball seat, 42-steel ball, 43-round platform, 44-oil return nozzle.
Embodiment
Embodiment: composition graphs 1, a kind of fuel pressure regulator, comprise upper shell 1 and lower shell body 3, diaphragm 5 is provided with between described upper shell 1 and lower shell body 3, the cavity that upper shell 1 and lower shell body 3 are formed is divided into stilling chamber 2 and fuel oil room 4 by described diaphragm 5, spring 23 is provided with in stilling chamber 2, spring 23 bottom is connected with diaphragm 5 by press table 21, be provided with top board 24 between spring 23 top and upper shell 1, adjusting screw 25 one end extrudes top board 24 through the depressed part 11 of upper shell 1; Steel ball seat 41 is provided with in the fuel oil room 4 of the relative side of described diaphragm 5, packing ring 22 is provided with between press table 21 and steel ball seat 41 top, described lower shell body 3 is provided with filler opening 31 and oil return nozzle 44, steel ball 42 compression seal of oil return nozzle 44 by coordinating with steel ball seat 41, the end face that described steel ball 42 contacts with oil return nozzle 44 is provided with round platform 43, for inclined-plane seals between round platform 43 and oil return nozzle 44.
In working procedure, oil pump feed, when overpressure in oil circuit, the pressure in fuel oil room 4 is greater than pressure and reconciles pressure in room 2, and diaphragm 5 drives the hemisphere steel ball 42 of band round platform 43 to move, fuel oil flows back to fuel tank from oil return nozzle 44, serve the effect of decompression, when hypotony in oil circuit, the pressure pressure of reconciling in room 2 is greater than the pressure in fuel oil room 4, steel ball 42 with round platform 43 resets and seals oil return nozzle 44, thus effectively ensure that fuel pressure is stablized; The pressure size of stilling chamber 2 medi-spring 23 regulates by adjusting screw 25.
Claims (2)
1. a fuel pressure regulator, comprise upper shell (1) and lower shell body (3), diaphragm (5) is provided with between described upper shell (1) and lower shell body (3), the cavity that upper shell (1) and lower shell body (3) are formed is divided into stilling chamber (2) and fuel oil room (4) by described diaphragm (5), spring (23) is provided with in stilling chamber (2), spring (23) bottom is connected with diaphragm (5) by press table (21), steel ball seat (41) is provided with in the fuel oil room (4) of the relative side of described diaphragm (5), described lower shell body (3) is provided with filler opening (31) and oil return nozzle (44), steel ball (42) compression seal of oil return nozzle (44) by coordinating with steel ball seat (41), it is characterized in that: the end face that described steel ball (42) contacts with oil return nozzle (44) is provided with round platform (43), for inclined-plane seals between round platform (43) and oil return nozzle (44).
2. fuel pressure regulator according to claim 1, it is characterized in that: be provided with top board (24) between spring (23) top and upper shell (1), adjusting screw (25) one end is through the depressed part (11) extruding top board (24) of upper shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520443826.5U CN204729200U (en) | 2015-06-25 | 2015-06-25 | A kind of fuel pressure regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520443826.5U CN204729200U (en) | 2015-06-25 | 2015-06-25 | A kind of fuel pressure regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204729200U true CN204729200U (en) | 2015-10-28 |
Family
ID=54387558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520443826.5U Expired - Fee Related CN204729200U (en) | 2015-06-25 | 2015-06-25 | A kind of fuel pressure regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204729200U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108266298A (en) * | 2017-12-22 | 2018-07-10 | 苏州斯雷克机电科技有限公司 | A kind of pressure control structure for fuel injector oil pressure branch pipe |
-
2015
- 2015-06-25 CN CN201520443826.5U patent/CN204729200U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108266298A (en) * | 2017-12-22 | 2018-07-10 | 苏州斯雷克机电科技有限公司 | A kind of pressure control structure for fuel injector oil pressure branch pipe |
| CN108266298B (en) * | 2017-12-22 | 2020-09-29 | 苏州斯雷克机电科技有限公司 | Pressure control structure for oil pressure branch pipe of oil injector |
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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 |
Granted publication date: 20151028 Termination date: 20190625 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |