CN204371661U - A kind of use for diesel engine high-pressure common rail inline pump machine - Google Patents
A kind of use for diesel engine high-pressure common rail inline pump machine Download PDFInfo
- Publication number
- CN204371661U CN204371661U CN201420720772.8U CN201420720772U CN204371661U CN 204371661 U CN204371661 U CN 204371661U CN 201420720772 U CN201420720772 U CN 201420720772U CN 204371661 U CN204371661 U CN 204371661U
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- China
- Prior art keywords
- pump housing
- pump
- camshaft
- diesel engine
- 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 - Fee Related
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- Lubrication Of Internal Combustion Engines (AREA)
- Rotary Pumps (AREA)
Abstract
The utility model relates to Diesel engine pump field, is specifically related to a kind of use for diesel engine high-pressure common rail inline pump machine, comprises: the pump housing, camshaft, cycloid rotor type oil transfer pump, inlet connector parts, solenoid valve, oil returning pipe joint parts, tappet body component, plunger part, bearing (ball) cover, oil-feed end cap, oil pipe union parts and reduction valve; Described cycloid rotor type oil transfer pump is connected with the spindle nose on the right side of camshaft by woodruff key, use for diesel engine high-pressure common rail inline pump machine of the present utility model, can smooth operation for a long time, and noise is less.
Description
Technical field
The utility model relates to Diesel engine pump field, is specifically related to a kind of use for diesel engine high-pressure common rail inline pump machine.
Background technique
The oil transfer pump of existing high-pressure common rail inline pump is generally vane fuel supply pump, and because the slide plate of vane fuel supply pump need slide in chute, require that the precision of processing is higher, difficulty of processing is larger; Because slide plate ceaselessly collides eccentric hoop, very large noise can be produced; Because slide plate ceaselessly rubs in the course of the work, and eccentric wheel inwall is not wear-resisting, and long-time use can cause excesssive gap, and upper oil pressure is low, the phenomenon of fuel-displaced shakiness.
In view of this, need to provide a kind of use for diesel engine high-pressure common rail inline pump machine, can smooth operation for a long time, and noise is less.
Model utility content
The purpose of this utility model is to solve the problem, and provides a kind of use for diesel engine high-pressure common rail inline pump machine, can smooth operation for a long time, and noise is less.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of use for diesel engine high-pressure common rail inline pump machine, comprising: the pump housing, camshaft, cycloid rotor type oil transfer pump, inlet connector parts, solenoid valve, oil returning pipe joint parts, tappet body component, plunger part, bearing (ball) cover, oil-feed end cap, oil pipe union parts and reduction valve; Described cycloid rotor type oil transfer pump is connected with the spindle nose on the right side of camshaft by woodruff key.
Further, described camshaft is positioned at the bottom of the pump housing, and described camshaft comprises two cams, is separately installed with a tapered roller bearing in the both sides of two cams; Described tappet body component directly to be contacted with the cam on the left of camshaft by its roller outer ring and is connected with camshaft by described tappet body component; Described plunger part is positioned at the upper left side of the pump housing, and described plunger part is connected with tappet body component by the spring seat of its inner bottom; Described bearing (ball) cover is positioned at the left bottom of the pump housing, and camshaft is connected with the pump housing by socket head screw by described bearing (ball) cover, and the oil-discharging cavity of described bearing (ball) cover is crescent shape.
Further, described inlet connector parts are positioned at the right lower side of the pump housing, and described inlet connector parts are connected with cycloid rotor type oil transfer pump by socket head screw; Described solenoid valve is positioned at the right side of the pump housing, and described solenoid valve is connected with the pump housing by socket head screw; Described oil returning pipe joint parts are positioned at the top of the pump housing, and described oil returning pipe joint parts are connected with the pump housing by socket head screw; Described oil-feed end cap is positioned at the right side of the pump housing, and inlet connector parts are connected with the pump housing by socket head screw by described oil-feed end cap; Described oil pipe union parts are positioned at the side of the pump housing, and described oil pipe union parts are connected with the pump housing by socket head screw; Described reduction valve is connected with the pump housing by the mode of scyewed joint.
Further, described cycloid rotor type oil transfer pump comprises: front cover, rear end cover, eccentric hoop, external rotor and internal rotor.
Further, described internal rotor is located in the central cavity of external rotor.
Further, described front cover is located at the bottom of cycloid rotor type oil transfer pump, eccentric hoop is positioned at the madial wall place of cycloid rotor type oil transfer pump, external rotor and internal rotor are located at the middle part of eccentric hoop, the camshaft placement hole of internal rotor is fixedly connected with camshaft by woodruff key, and locating stud is connected and fixed through front cover, eccentric hoop and rear end cover and the pump housing successively.
After adopting said structure, the utility model beneficial effect is: a kind of use for diesel engine high-pressure common rail inline pump machine of the present utility model, has the following advantages:
(1) integrated design, ensure that structural strength and rigidity, improves bearing capacity and pump oil efficiency;
(2) compact structure, volume is little, lightweight;
(3) maximum speed is large, and fillibility is good, and " air pocket " phenomenon can not occur;
(4) smooth running, flow pulsation is little, and noise is low, vibrates little;
(5) volumetric efficiency is high, all can up to more than 80% in the scope of high speed 2500rpm-6000rpm;
(6), when lubricating insufficient, the wearing and tearing of cycloid profile are less;
(7) cycloid engagement overlap coefficient is large, and the overlap coefficient caused due to foozle reduces, little on the impact of engagement driving, and the drive characteristic of cycloid engagement is good, smooth running;
(8) oil-discharging cavity of bearing (ball) cover adopts crescent shape, and reduce flow pulsation, outlet pressure is comparatively mild.
Accompanying drawing explanation
Fig. 1 is the front view of use for diesel engine high-pressure common rail inline pump machine of the present utility model;
Fig. 2 is the plan view of use for diesel engine high-pressure common rail inline pump machine of the present utility model;
Fig. 3 is the structural representation of cycloid rotor type oil transfer pump of the present utility model;
Fig. 4 is the front cover schematic diagram of cycloid rotor type oil transfer pump of the present utility model;
Fig. 5 is the generalized section of the front cover of cycloid rotor type oil transfer pump of the present utility model;
Fig. 6 is the eccentric hoop schematic diagram of cycloid rotor type oil transfer pump of the present utility model;
Fig. 7 is the external rotor schematic diagram of cycloid rotor type oil transfer pump of the present utility model;
Fig. 8 is the internal rotor schematic diagram of cycloid rotor type oil transfer pump of the present utility model;
Fig. 9 is the rear end cover schematic diagram of cycloid rotor type oil transfer pump of the present utility model;
Figure 10 is the left view of cycloid rotor type oil transfer pump of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
As shown in Figures 1 to 10, a kind of use for diesel engine high-pressure common rail inline pump of the present utility model, comprising: the pump housing 1, camshaft 2, cycloid rotor type oil transfer pump 3, inlet connector parts 4, solenoid valve 5, oil returning pipe joint parts 6, tappet body component 7, plunger part 8, bearing (ball) cover 9, oil-feed end cap 10, oil pipe union parts 11 and reduction valve 12.Cycloid rotor type oil transfer pump 3 is connected with the spindle nose on the right side of camshaft 2 by woodruff key 13.
Wherein, camshaft 2 is positioned at the bottom of the pump housing 1, and camshaft 2 comprises two cams, is separately installed with a tapered roller bearing 21 in the both sides of two cams; Tappet body component 7 directly to be contacted with the cam on the left of camshaft 2 by its roller outer ring and is connected with camshaft 2 by tappet body component 7; Plunger part 8 is positioned at the upper left side of the pump housing 1, and plunger part 8 is connected with tappet body component 8 by the spring seat of its inner bottom; Bearing (ball) cover 9 is positioned at the left bottom of the pump housing 1, and camshaft 2 is connected with the pump housing 1 by socket head screw by bearing (ball) cover 9, and the oil-discharging cavity of bearing (ball) cover 9 is crescent shape.
Inlet connector parts 4 are positioned at the right lower side of the pump housing 1, and inlet connector parts 4 are connected with cycloid rotor type oil transfer pump 3 by socket head screw; Solenoid valve 5 is positioned at the right side of the pump housing 1, and solenoid valve 5 is connected with the pump housing 1 by socket head screw; Oil returning pipe joint parts 6 are positioned at the top of the pump housing 1, and oil returning pipe joint parts 6 are connected with the pump housing 1 by socket head screw; Oil-feed end cap 10 is positioned at the right side of the pump housing 1, and inlet connector parts 4 are connected with the pump housing 1 by socket head screw by oil-feed end cap 10; Oil pipe union parts 11 are positioned at the side of the pump housing 1, and oil pipe union parts 11 are connected with the pump housing 1 by socket head screw; Reduction valve 12 is connected with the pump housing 1 by the mode of scyewed joint.
Cycloid rotor type oil transfer pump 3 comprises: front cover 14, rear end cover 15, eccentric hoop 16, external rotor 17 and internal rotor 18.
Wherein, internal rotor 18 is located in the central cavity 19 of external rotor 17.Front cover 14 is located at the bottom of cycloid rotor type oil transfer pump 3, eccentric hoop 16 is positioned at the madial wall place of cycloid rotor type oil transfer pump 3, external rotor 17 and internal rotor 18 are located at the middle part of eccentric hoop 16, the camshaft placement hole 20 of internal rotor 18 is fixedly connected with camshaft 2 by woodruff key 13, and locating stud 23 is connected and fixed through front cover 14, eccentric hoop 16 and rear end cover 15 and the pump housing 1 successively.
Cycloid rotor type oil transfer pump 3 also comprises: bolt hole 22, locating stud 23, installation cavity 24, oil transportation screwed pipe connection mouth 25, camshaft resettlement groove 26, front cover positioning pin hole 27, front cover oil transportation hole 28, front cover crescent 29, eccentric hoop positioning pin hole 30, cam path placement hole 31, keyway 32, rear end cover positioning pin hole 33, camshaft through hole 34, rear end cover crescent 35 and rear end cover oil transportation hole 36.
Cycloid rotor type oil transfer pump 3 adopts means of a powder metallurgy technique to carry out mass production, time and labour saving, and processing cost is low.Due to the material particularity of metallic sintered products, ensure that wear resistance and the sliding of cycloid rotor type oil transfer pump 3, thus further subsequent treatment need not be adopted, such as, without the coat of metal etc., greatly reduce cost, have great cost advantage.
The above is only better embodiment of the present utility model, therefore all equivalences done according to structure, feature and the principle described in the utility model patent claim change or modify, and are included in the utility model patent claim.
Claims (6)
1. a use for diesel engine high-pressure common rail inline pump machine, is characterized in that, comprising: the pump housing, camshaft, cycloid rotor type oil transfer pump, inlet connector parts, solenoid valve, oil returning pipe joint parts, tappet body component, plunger part, bearing (ball) cover, oil-feed end cap, oil pipe union parts and reduction valve; Described cycloid rotor type oil transfer pump is connected with the spindle nose on the right side of camshaft by woodruff key.
2. use for diesel engine high-pressure common rail inline pump machine according to claim 1, it is characterized in that, described camshaft is positioned at the bottom of the pump housing, and described camshaft comprises two cams, is separately installed with a tapered roller bearing in the both sides of two cams; Described tappet body component directly to be contacted with the cam on the left of camshaft by its roller outer ring and is connected with camshaft by described tappet body component; Described plunger part is positioned at the upper left side of the pump housing, and described plunger part is connected with tappet body component by the spring seat of its inner bottom; Described bearing (ball) cover is positioned at the left bottom of the pump housing, and camshaft is connected with the pump housing by socket head screw by described bearing (ball) cover, and the oil-discharging cavity of described bearing (ball) cover is crescent shape.
3. use for diesel engine high-pressure common rail inline pump machine according to claim 1, it is characterized in that, described inlet connector parts are positioned at the right lower side of the pump housing, and described inlet connector parts are connected with cycloid rotor type oil transfer pump by socket head screw; Described solenoid valve is positioned at the right side of the pump housing, and described solenoid valve is connected with the pump housing by socket head screw; Described oil returning pipe joint parts are positioned at the top of the pump housing, and described oil returning pipe joint parts are connected with the pump housing by socket head screw; Described oil-feed end cap is positioned at the right side of the pump housing, and inlet connector parts are connected with the pump housing by socket head screw by described oil-feed end cap; Described oil pipe union parts are positioned at the side of the pump housing, and described oil pipe union parts are connected with the pump housing by socket head screw; Described reduction valve is connected with the pump housing by the mode of scyewed joint.
4. the use for diesel engine high-pressure common rail inline pump machine according to claims 1 to 3 any one, it is characterized in that, described cycloid rotor type oil transfer pump comprises: front cover, rear end cover, eccentric hoop, external rotor and internal rotor.
5. use for diesel engine high-pressure common rail inline pump machine according to claim 4, it is characterized in that, described internal rotor is located in the central cavity of external rotor.
6. use for diesel engine high-pressure common rail inline pump machine according to claim 4, it is characterized in that, described front cover is located at the bottom of cycloid rotor type oil transfer pump, eccentric hoop is positioned at the madial wall place of cycloid rotor type oil transfer pump, external rotor and internal rotor are located at the middle part of eccentric hoop, the camshaft placement hole of internal rotor is fixedly connected with camshaft by woodruff key, and locating stud is connected and fixed through front cover, eccentric hoop and rear end cover and the pump housing successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420720772.8U CN204371661U (en) | 2014-11-27 | 2014-11-27 | A kind of use for diesel engine high-pressure common rail inline pump machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420720772.8U CN204371661U (en) | 2014-11-27 | 2014-11-27 | A kind of use for diesel engine high-pressure common rail inline pump machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204371661U true CN204371661U (en) | 2015-06-03 |
Family
ID=53327886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420720772.8U Expired - Fee Related CN204371661U (en) | 2014-11-27 | 2014-11-27 | A kind of use for diesel engine high-pressure common rail inline pump machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204371661U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105464733A (en) * | 2015-12-08 | 2016-04-06 | 长春设备工艺研究所 | Concave spherical surface arc cam structure for engine cam drive |
| CN108590803A (en) * | 2018-03-05 | 2018-09-28 | 中国北方发动机研究所(天津) | A kind of bindiny mechanism of the diesel electric-controlled executing agency of inline pump |
-
2014
- 2014-11-27 CN CN201420720772.8U patent/CN204371661U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105464733A (en) * | 2015-12-08 | 2016-04-06 | 长春设备工艺研究所 | Concave spherical surface arc cam structure for engine cam drive |
| CN108590803A (en) * | 2018-03-05 | 2018-09-28 | 中国北方发动机研究所(天津) | A kind of bindiny mechanism of the diesel electric-controlled executing agency of inline pump |
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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: 20150603 Termination date: 20201127 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |