CN203516079U - Plunger pair - Google Patents
Plunger pair Download PDFInfo
- Publication number
- CN203516079U CN203516079U CN201320718285.3U CN201320718285U CN203516079U CN 203516079 U CN203516079 U CN 203516079U CN 201320718285 U CN201320718285 U CN 201320718285U CN 203516079 U CN203516079 U CN 203516079U
- Authority
- CN
- China
- Prior art keywords
- plunger
- oil
- valve
- oil outlet
- outlet
- 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 - Lifetime
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 230000008676 import Effects 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000007599 discharging Methods 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Fuel-Injection Apparatus (AREA)
Abstract
The utility model discloses a plunger pair with a small-sized plunger sleeve to reduce the size and weight of an oil pump to meet the requirements of some using environments. The plunger pair comprises a plunger (2), the plunger sleeve (3) mounted in a pressing manner by a plunger press plate (1), an oil inlet valve (5) and an oil outlet valve, wherein the oil inlet valve (5) is arranged at the inlet of an oil chamber (4) of the plunger sleeve (3); the plunger sleeve (3) is provided with a first oil outlet hole (6) communicated with the oil chamber (4) and used for discharging oil; the first oil outlet hole (6) is communicated with a second oil outlet hole (7) through the plunger press plate (1); the oil outlet valve is arranged in the second oil outlet hole (7).
Description
Technical field
The utility model relates to technical field of hydraulic elements, is specifically a kind of trunk piston set.
Background technique
The applicant formerly discloses a kind of trunk piston set, publication number is CN101769249B, although it has integrated advantage, but because needs set out fuel tap on plunger bushing, by the structure limitation of current material, working ability and existing outlet valve, it is larger that described plunger bushing volume is done, thereby cause whole oil pump volume, weight to increase, cannot meet the requirement of some Environmental Conditions, such as requiring to carry very portable occasion.
Model utility content
The technical problems to be solved in the utility model is to provide a kind of plunger bushing volume little trunk piston set, thereby reduce whole oil pump volume, weight to meet the requirement of some Environmental Conditions.
The technical solution of the utility model is, the utility model trunk piston set, it comprises plunger, the plunger bushing being press-fited by plunger plate pressing, oiling valve and outlet valve, oiling valve is located at the import of the oil pocket of plunger bushing, plunger bushing be provided be communicated with oil pocket for the first fuel-displaced oil outlet, the first oil outlet is communicated with the second oil outlet of being located at plunger plate pressing, and described outlet valve is set in the second oil outlet.
Adopt after said structure, the utility model compared with prior art, have the following advantages: due to outlet valve is located in plunger plate pressing, utilized existing plunger plate pressing, plunger bushing will be without considering that outlet valve installation is required, thereby effectively reduced plunger bushing volume, thus the utlity model has the advantage that plunger bushing volume is little, thus reduce whole oil pump volume, weight to meet the requirement of some Environmental Conditions.
As improvement, the import of the second oil outlet arranges one for the step hole of outlet valve is installed, and along step hole, valve seat, steel ball, cone spring is axially sequentially set to form outlet valve, and like this, compact structure, reliable, is more conducive to the raising of performance of the present utility model.
As improvement, the upper and lower surface of valve seat respectively arranges a seal ring, and like this, good sealing effect, prevents that fluid is from valve seat leakage, is more conducive to the raising of performance of the present utility model.
Accompanying drawing explanation
Fig. 1 is the sectional view of the utility model trunk piston set.
Shown in figure, 1, plunger plate pressing, 2, plunger, 3, plunger bushing, 4, oil pocket, 5, oiling valve, the 6, first oil outlet, the 7, second oil outlet, 8, valve seat, 9, steel ball, 10, cone spring, 11, seal ring.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
The utility model trunk piston set, plunger bushing 3, oiling valve 5 and outlet valve that it comprises plunger 2, by plunger plate pressing 1, is press-fited, oiling valve 5 is located at the import of the oil pocket 4 of plunger bushing 3, plunger bushing 3 be provided be communicated with oil pocket 4 for the first fuel-displaced oil outlet 6, the first oil outlet 6 is communicated with the second oil outlet 7 of being located at plunger plate pressing 1, and the second oil outlet 7 is interior arranges described outlet valve.
The import of the second oil outlet 7 arranges one for the step hole of outlet valve is installed, along step hole, valve seat 8, steel ball 9, cone spring 10 are axially sequentially set to form outlet valve, valve seat 8 is located at the first step of step hole, one end and the steel ball 9 of cone spring 10 offsets and sentences and block and seal valve seat 8 oilholes steel ball 9 is withstood on to valve seat 8 oilholes, bores the other end of spring 10 and the nethermost step surface of step hole and offsets so that bore the other end of spring 10 and fix.
Claims (3)
1. a trunk piston set, plunger bushing (3), oiling valve (5) and outlet valve that it comprises plunger (2), by plunger plate pressing (1), is press-fited, oiling valve (5) is located at the import of the oil pocket (4) of plunger bushing (3), plunger bushing (3) be provided be communicated with oil pocket (4) for fuel-displaced the first oil outlet (6), it is characterized in that, the first oil outlet (6) is communicated with the second oil outlet (7) of being located at plunger plate pressing (1), and described outlet valve is set in the second oil outlet (7).
2. trunk piston set according to claim 1, is characterized in that, the import of the second oil outlet (7) arranges one for the step hole of outlet valve is installed, and along step hole, valve seat (8), steel ball (9), cone spring (10) is axially sequentially set to form outlet valve.
3. trunk piston set according to claim 2, is characterized in that, valve seat (8) upper and lower surface is respectively established a seal ring (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320718285.3U CN203516079U (en) | 2013-11-14 | 2013-11-14 | Plunger pair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320718285.3U CN203516079U (en) | 2013-11-14 | 2013-11-14 | Plunger pair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203516079U true CN203516079U (en) | 2014-04-02 |
Family
ID=50375017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320718285.3U Expired - Lifetime CN203516079U (en) | 2013-11-14 | 2013-11-14 | Plunger pair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203516079U (en) |
-
2013
- 2013-11-14 CN CN201320718285.3U patent/CN203516079U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140402 |
|
| CX01 | Expiry of patent term |