CN203515889U - Y-shaped high-pressure oil supply pump assembly - Google Patents
Y-shaped high-pressure oil supply pump assembly Download PDFInfo
- Publication number
- CN203515889U CN203515889U CN201320642628.2U CN201320642628U CN203515889U CN 203515889 U CN203515889 U CN 203515889U CN 201320642628 U CN201320642628 U CN 201320642628U CN 203515889 U CN203515889 U CN 203515889U
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- Prior art keywords
- oil
- pump
- pump assembly
- camshaft
- pressure oil
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- 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
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- 238000000034 method Methods 0.000 claims abstract description 6
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000005086 pumping Methods 0.000 abstract 5
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
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- Reciprocating Pumps (AREA)
Abstract
A Y-shaped high-pressure oil supply pump assembly comprises a pump body, a plurality of oil pumping systems and a cam shaft for driving the oil pumping systems. The Y-shaped high-pressure oil supply pump assembly is characterized in that the number of the oil pumping systems is three, the three oil pumping systems are distributed along the circumference of the cam shaft, and in the process of rotating the cam shaft through a round, the three oil pumping systems are sequentially driven. The Y-shaped high-pressure oil supply pump assembly has the advantages that the pump body is small in size and light in weight and the requirement for a driving device are low.
Description
Technical field
The utility model relates to a kind of oil feed pump, relates in particular to a kind of Y shape high-pressure oil feed pump assembly.
Background technique
Existing inline pump, cam lift is large, and the driving force of required drive cam shaft is larger, to having relatively high expectations of drive unit.Simultaneously the suffered contact stress of component is high, poor reliability.
Model utility content
A Y shape high-pressure oil feed pump assembly, comprises the pump housing, a plurality of pump oil system and the camshaft that is for drive pump oil, and its improvement is: described pump oil coefficient amount is three, and three pump oil systems circumferentially distribute along camshaft; Camshaft rotates in the process of a week, in turn three pumps oil systems of transmission.
Adopt after aforementioned schemes, three pump oil systems circumferentially distribute along camshaft, volume and the deadweight of the pump housing can significantly be reduced, and, synchronization, camshaft only needs pump oil system of transmission, camshaft burden is less, and the peak torque that camshaft actuated needs is less, lower to the requirement of drive unit, correspondingly, the contact stress of the tappet in camshaft and pump oil system is also corresponding lower.
Preferably, the stroke directions of the plunger in the oily system of described pump is along the radial direction setting of camshaft, thereby make to be reduced by the stroke of tappet and the formed drive mechanism of plunger, shortening structure, in camshaft length in the radial direction, further reduces device volume indirectly.
For further reduction means volume, the utility model has also been done following improvement, and described three pumps oil is to be positioned at cam shaft to same plane.After adopting this to improve, except the length can reduction means making progress at cam shaft, also make three pumps oil systems to be reduced production costs by the actuated by cams of an eccentric circle structure, and can improve the stand under load uniformity of drive unit; In addition, this structure rotating speed can reach general 3 times of left and right of inline pump rotating speed, meets the demand of fuel delivery completely.
For the ease of coordinating with only having the oily rail of a filler opening, the utility model has also proposed following preferred embodiment: the oil outlet end of the second pump oil system and the 3rd pump oil system converges to respectively the oil outlet end of the first pump oil system by two oil ducts; The oil outlet end of the first pump oil system is communicated with oily rail.
For fear of increasing pump housing volume and deadweight, preferably, described oil duct adopts metallic conduit, and metallic conduit is arranged at pump housing outside.
For the ease of the independent processing to parts, and be convenient to dismounting and safeguard, preferably, described pump oil system and the pump housing are split-type structural.
Useful technique effect of the present utility model is: pump housing small volume, weight is lighter, to drive unit, requires low.
Accompanying drawing explanation
Fig. 1, structural representation of the present utility model;
Fig. 2, pump oil system and camshaft distributing position schematic diagram;
Fig. 3, pump oil architecture schematic diagram;
In figure, the corresponding parts of each mark are respectively: the pump housing 1, pump oil are 2, camshaft 3, connect oil duct 4, inlet metering valve 5, the plunger 6 of the first pump oil system and the second/tri-pump oil system.
Embodiment
A Y shape high-pressure oil feed pump assembly, comprises that the pump housing 1, a plurality of pump oil are 2 and for driven pump oil, are 2 camshaft 3, and its improvement is: described pump oil is that 2 quantity are three, and three pump oil is 2 along camshaft 3, circumferentially to distribute; In the camshaft 3 rotations process of a week, three pump oil of transmission are 2 in turn.
Further, described pump oil is that the stroke directions of the plunger 6 in 2 is along the radial direction setting of camshaft 3.
Further, described three pump oil are 2 to be positioned at cam shaft to same plane.
Further, the second pump oil is that the 2 and the 3rd pump oil is that by two oil ducts, to converge to the first pump oil be respectively 2 oil outlet end for 2 oil outlet end; The first pump oil is that 2 oil outlet end is communicated with oily rail.
Further, described oil duct adopts metallic conduit, and metallic conduit is arranged at the pump housing 1 outside.
Further, described pump oil be 2 with the pump housing 1 be split-type structural.
Claims (6)
1. a Y shape high-pressure oil feed pump assembly, comprise the pump housing (1), a plurality of pump oil system (2) and for the camshaft (3) of driven pump oil system (2), it is characterized in that: described pump oil is that (2) quantity is three, and three pump oil systems (2) circumferentially distribute along camshaft (3); In camshaft (3) the rotation process of a week, three pumps oil of transmission are (2) in turn.
2. Y shape high-pressure oil feed pump assembly according to claim 1, is characterized in that: the stroke directions of the plunger in described pump oil system (2) is along the radial direction setting of camshaft (3).
3. Y shape high-pressure oil feed pump assembly according to claim 1, is characterized in that: described three pumps oil systems (2) are positioned at cam shaft to same plane.
4. Y shape high-pressure oil feed pump assembly according to claim 1, is characterized in that: the oil outlet end of the second pump oil system (2) and the 3rd pump oil system (2) converges to respectively the oil outlet end of the first pump oil system (2) by two oil ducts; The oil outlet end of the first pump oil system (2) is communicated with oily rail.
5. Y shape high-pressure oil feed pump assembly according to claim 4, is characterized in that: described oil duct adopts metallic conduit, and metallic conduit is arranged at the pump housing (1) outside.
6. Y shape high-pressure oil feed pump assembly according to claim 1, is characterized in that: described pump oil system (2) is split-type structural with the pump housing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320642628.2U CN203515889U (en) | 2013-10-18 | 2013-10-18 | Y-shaped high-pressure oil supply pump assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320642628.2U CN203515889U (en) | 2013-10-18 | 2013-10-18 | Y-shaped high-pressure oil supply pump assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203515889U true CN203515889U (en) | 2014-04-02 |
Family
ID=50374830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320642628.2U Expired - Lifetime CN203515889U (en) | 2013-10-18 | 2013-10-18 | Y-shaped high-pressure oil supply pump assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203515889U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103498741A (en) * | 2013-10-18 | 2014-01-08 | 中国重汽集团重庆燃油喷射系统有限公司 | Y-shaped high pressure fuel feed pump assembly |
-
2013
- 2013-10-18 CN CN201320642628.2U patent/CN203515889U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103498741A (en) * | 2013-10-18 | 2014-01-08 | 中国重汽集团重庆燃油喷射系统有限公司 | Y-shaped high pressure fuel feed pump assembly |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140402 |