CN205135860U - Diesel engine high pressure common rail fuel pump - Google Patents
Diesel engine high pressure common rail fuel pump Download PDFInfo
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- CN205135860U CN205135860U CN201520903664.9U CN201520903664U CN205135860U CN 205135860 U CN205135860 U CN 205135860U CN 201520903664 U CN201520903664 U CN 201520903664U CN 205135860 U CN205135860 U CN 205135860U
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- fuel pump
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- pressure common
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Abstract
The utility model discloses a diesel engine high pressure common rail fuel pump, including the fuel pump body, the cam of the same root camshaft of two jars sharing that each two jar that are equipped with four hydro -cylinders on the fuel pump body about, are V type structure symmetrical arrangement to be corresponded about, the utility model discloses a fuel pump is four jar structural arrangement on the V type, satisfies the large -traffic performance requirement of high -power engine, the fuel pump structure is very compact, and it is less that overall dimension increases, conveniently arranges, design convex fuel pump installation support bracket in fuel pump top is favorable to the installation of fuel pump, makes the fuel pump installation more accurate, more firm, simultaneously, the fuel pump is arranged in the V type frame at V type organism top for arranging of engine is compacter, and convenient the connection fires oil pipe.
Description
Technical field
The utility model belongs to fuel oil and sprays field, is specifically related to a kind of diesel engine high-pressure common-rail fuel pump.
Background technique
At present, market increases day by day to the demand of the generator set, boats and ships etc. of high-power, high pulling torque, V-type engine compact structure, power are large, become the product of a lot of customer demand.The power of V-type engine is larger, and require that the flow of fuel pump is also large, traditional oil pump form is double-cylinder direct column or three cylinder radials, and the lateral space of V-type engine is limited, be not suitable for arranging fuel pump, be also inconvenient to arrange the fuel pipe connected, the requirement of high power engine cannot be met.
Summary of the invention
For the deficiencies in the prior art, the purpose of this utility model is to provide a kind of diesel engine high-pressure common-rail fuel pump, compact structure, arrangement convenience, and can meet the requirement to fuel injection quantity of high power engine.
For achieving the above object, the technological scheme that the utility model adopts is: a kind of diesel engine high-pressure common-rail fuel pump, comprise fuel pump body, described fuel pump body is provided with four oil cylinders, the left and right V-shaped symmetrical configuration of each two cylinder is arranged, two cylinders of left and right correspondence share the cam of same camshaft.
Further, one end of described fuel pump is provided with oil transfer pump filler opening for connecting oil transfer pump and oil transfer pump oil outlet, machine oil import and batching unit is provided with in the middle of the V-type plane that left and right oil cylinder is formed, oil cylinder top is equipped with delivery connection, the housing of oil cylinder place plane is provided with the first back leakage connection, V-type end face near machine oil inlet end is provided with machine oil return opening, and another V-type end face is provided with high pressure oil pump oil-feed and the second back leakage connection, and fuel pump is also provided with camshaft-signal sensor.
Further, the V-type plane included angle be formed centrally in the oil cylinder of described left and right is 60 °, is convenient to arrange batching unit and machine oil filler opening.
Further, described batching unit has two, and batching unit is oil-feed Proportional valve, is arranged on oil-feed position, for adjusting fuel feed amount and fuel pressure.
Further, the mounting bracket of described fuel pump top design circular arc, is conducive to the installation of fuel pump.
The beneficial effects of the utility model are:
1, V-shaped four cylinder structures of fuel pump of the present utility model are arranged, meet the performance requirement of high power engine large discharge;
2, vehicle fuel pump structure closely, and it is less that boundary dimension increases, convenient layout;
3, the fuel pump mounting bracket of fuel pump top design circular arc, is conducive to the installation of fuel pump, make fuel pump install more precisely, more firm; Meanwhile, fuel pump is arranged in the V-type framework at V-type body top, makes the layout of motor compacter, and conveniently connects fuel pipe.
Accompanying drawing explanation
Fig. 1 is the perspective view of the utility model ear end face.
Fig. 2 is plan view of the present utility model.
Fig. 3 is front-end view of the present utility model.
Fig. 4 is rear end of the present utility model schematic diagram.
In figure: 1-delivery connection, 2-first back leakage connection, 3-second back leakage connection, 4-camshaft-signal sensor, 5-oil transfer pump oil outlet, 6-oil transfer pump filler opening, 7-high pressure oil pump filler opening, 8-batching unit, the import of 9-machine oil, 10-machine oil return opening.
Embodiment
Below in conjunction with the drawings and the specific embodiments, the utility model is described in further detail.
As shown in the figure: a kind of diesel engine high-pressure common-rail fuel pump, comprises fuel pump body, described fuel pump body is provided with four oil cylinders, and the left and right V-shaped symmetrical configuration of each two cylinder is arranged, two cylinders of left and right correspondence share the cam of same camshaft.One end of described fuel pump is provided with oil transfer pump filler opening 6 for connecting oil transfer pump and oil transfer pump oil outlet 5, machine oil import 9 and batching unit 8 is provided with in the middle of the V-type plane that left and right oil cylinder is formed, oil cylinder top is equipped with delivery connection 1, the housing of oil cylinder place plane is provided with the first oil return and connects 2, V-type end face near machine oil import 9 one end is provided with machine oil return opening 10, another V-type end face is provided with high pressure oil pump filler opening 7 and the second back leakage connection 3, and fuel pump is also provided with camshaft-signal sensor 4.
The V-type plane included angle be formed centrally in the oil cylinder of described left and right is 60 °, oil pump is arranged in the angle of body, body angle is 90 °, also suction tude will be held in the angle of body, leave the maximum angular of oil pump for less than 65 °, also will arrange batching unit and machine oil filler opening in the middle of oil pump angle, so need angle as far as possible large, 60 ° is optimum angle.
Further, described batching unit 8 has two, and batching unit is oil-feed Proportional valve, is arranged on oil-feed position, for adjusting fuel feed amount and fuel pressure.
Further, the mounting bracket of described fuel pump top design circular arc, is conducive to the installation of fuel pump.
The foregoing is only preferred embodiment of the present utility model, is not to restriction of the present utility model.The change that those of ordinary skill in the art makes in essential scope of the present utility model, remodeling, interpolation or replacement, also should belong to protection domain of the present utility model.
Claims (6)
1. a diesel engine high-pressure common-rail fuel pump, comprises fuel pump body, it is characterized in that: described fuel pump body is provided with four oil cylinders, and the left and right V-shaped symmetrical configuration of each two cylinder is arranged, two cylinders of left and right correspondence share the cam of same camshaft.
2. diesel engine high-pressure common-rail fuel pump according to claim 1, it is characterized in that: one end of described fuel pump body is provided with oil transfer pump filler opening for connecting oil transfer pump and oil transfer pump oil outlet, machine oil import and batching unit is provided with in the middle of the V-type plane that left and right oil cylinder is formed, oil cylinder top is equipped with delivery connection, the housing of oil cylinder place plane is provided with the first back leakage connection, V-type end face near machine oil inlet end is provided with machine oil return opening, another V-type end face is provided with high pressure oil pump oil-feed and the second back leakage connection, fuel pump is also provided with camshaft-signal sensor.
3. diesel engine high-pressure common-rail fuel pump according to claim 1 and 2, is characterized in that: the V-type plane included angle be formed centrally in the oil cylinder of described left and right is 60 °.
4. diesel engine high-pressure common-rail fuel pump according to claim 2, is characterized in that: described batching unit has two.
5. diesel engine high-pressure common-rail fuel pump according to claim 4, is characterized in that: described batching unit is oil-feed Proportional valve.
6. the diesel engine high-pressure common-rail fuel pump according to claim 1 or 2 or 5, is characterized in that: the mounting bracket of described fuel pump top design circular arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520903664.9U CN205135860U (en) | 2015-11-13 | 2015-11-13 | Diesel engine high pressure common rail fuel pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520903664.9U CN205135860U (en) | 2015-11-13 | 2015-11-13 | Diesel engine high pressure common rail fuel pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205135860U true CN205135860U (en) | 2016-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520903664.9U Active CN205135860U (en) | 2015-11-13 | 2015-11-13 | Diesel engine high pressure common rail fuel pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN205135860U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050601A (en) * | 2016-08-04 | 2016-10-26 | 广西玉柴机器股份有限公司 | Multiplex hydraulic pump of V-shaped diesel engine |
-
2015
- 2015-11-13 CN CN201520903664.9U patent/CN205135860U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050601A (en) * | 2016-08-04 | 2016-10-26 | 广西玉柴机器股份有限公司 | Multiplex hydraulic pump of V-shaped diesel engine |
| CN106050601B (en) * | 2016-08-04 | 2019-03-15 | 广西玉柴机器股份有限公司 | The multi-joint hydraulic pump of V-type diesel |
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| GR01 | Patent grant |