CN202900500U - Oil inlet and outlet valve assembly for common rail high-pressure oil pump - Google Patents
Oil inlet and outlet valve assembly for common rail high-pressure oil pump Download PDFInfo
- Publication number
- CN202900500U CN202900500U CN 201220631336 CN201220631336U CN202900500U CN 202900500 U CN202900500 U CN 202900500U CN 201220631336 CN201220631336 CN 201220631336 CN 201220631336 U CN201220631336 U CN 201220631336U CN 202900500 U CN202900500 U CN 202900500U
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- oil
- valve
- outlet valve
- oil inlet
- high pressure
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Abstract
Disclosed is an oil inlet and outlet valve assembly for a common rail high-pressure oil pump. The oil inlet and outlet valve assembly for the common rail high-pressure oil pump is composed of an oil inlet valve and an oil outlet valve. The oil inlet and outlet valve assembly is vertically arranged, the oil inlet valve is arranged on the lower portion, and the oil outlet valve is arranged on the upper portion. The oil inlet valve is in a ball valve structure and is composed of an oil inlet valve base, a steel ball which is installed on the oil inlet valve base and an oil inlet valve spring. An oil inlet of the oil inlet valve base is in a radial double-hole structure, and a high-pressure oil hole is arranged in an inclined mode. The oil outlet valve is in a side valve type structure and is composed of an oil outlet valve base and an oil outlet valve body which is installed in the oil outlet valve base. An arc-shaped diversion groove is arranged in the oil outlet valve body. The lower cavity of the oil outlet valve base is tapered with big end down and is communicated with the high-pressure oil hole of the oil inlet valve base. By means of the oil inlet and outlet valve assembly, requirements of oil supplying features and reliability of a high-pressure common rail system are met, height and radial size of the high-pressure oil pump can be effectively reduced simultaneously, and requirements of compactedness of the common rail high-pressure oil pump are met.
Description
Technical field
The utility model belongs to Diesel Engine Technique Field, is mainly used in diesel engine high-pressure co-rail system high pressure oil pump.
Background technique
Along with the increasingly stringent of Abgasgesetz and increasingly sharpening of energy crisis, diesel engine improves day by day to the requirement of oil-fired system.Be the performance index such as the emission performance that satisfies diesel engine, Economy, reliability, diesel fuel system generally adopts electronic control system.High pressure oil pump is one of critical component of common rail system, and the key performances such as the fuel-flow control performance of high pressure oil pump, reliability have directly determined the performance of common rail system.The turnover oil valve assembly of high pressure oil pump then is one of core component of high pressure oil pump, and its performance characteristics and reliability etc. have a direct impact high pressure oil pump.
Summary of the invention
The utility model is exactly on the basis of traditional oils oil pump inlet valve and scavenger valve, characteristic of fuel delivery, installation compactedness, reliability requirements according to common rail high pressure oil pump, designed a kind of new turnover oil valve assembly, this turnover oil valve assembly can satisfy characteristic of fuel delivery and the reliability requirement of high pressure co-rail system, can effectively reduce simultaneously height and the radial dimension of high pressure oil pump, satisfy the altogether compactedness requirement of rail high pressure oil pump.
The technical solution of the utility model is as follows:
A kind of altogether rail high pressure oil pump is comprised of oiling valve and outlet valve with the turnover oil valve assembly.
Described turnover oil valve assembly adopts up and down and vertically arranges, oiling valve is arranged in the bottom, and outlet valve is arranged in top.
Described oiling valve adopts ball-valve structure, is comprised of oil-feed valve seat and the steel ball and the oiling valve spring that are installed on the oil-feed valve seat.Can guarantee that high pressure oil pump satisfies the 180MPa high pressure sealing; Can guarantee effectively that oiling valve meter in area satisfies the oil mass demand of high pressure oil pump; Can effectively reduce simultaneously the height of whole high pressure oil pump, more compact structure.
The oil inlet hole of described oil-feed valve seat is double-pore structure radially, adopts Based on Dual-Aperture to oil-feed, and is axially fuel-displaced.The high pressure oilhole adopts inclined design, can effectively reduce the plunger cavity clearance volume, guarantees that simultaneously the oil-feed valve seat has enough intensity.
Described outlet valve adopts slide-valve structure, formed by delivery valve seat and the fuel-displaced valve body that is installed in the delivery valve seat, described oiling valve spring is set between the lower end of outlet valve valve body and the described steel ball, be designed with arc guiding gutter on the outlet valve valve body, both can guarantee the traffic requirement of high pressure oil pump, can improve valve body structure intensity again.
The lower volume chamber of described delivery valve seat is taper, and is lower large little, is communicated with the high pressure oilhole of oil-feed valve seat, can reduce the clearance volume of high pressure oil pump, improves the pressure surge of high pressure oil pump efficient and inhibition high pressure oil pump plunger cavity.
This turnover oil valve assembly namely can be installed on plunger bushing inside, also can compress by pump cover, is installed between pump cover and the plunger bushing.
Advantage of the present utility model:
1, the turnover oil valve assembly adopts up and down and vertically arranges, can effectively reduce the radial dimension of high pressure oil pump, is beneficial to the size and the weight that reduce high pressure oil pump, satisfies diesel engine to the compactedness requirement of oil-fired system.
2, oiling valve adopts ball-valve structure, can effectively reduce the height of whole high pressure oil pump, is beneficial to alleviate high pressure oil pump weight, more compact structure.
3, the high pressure oilhole of oil-feed valve seat is in tilted layout, and can effectively reduce the plunger cavity clearance volume, guarantees that simultaneously the oil-feed valve seat has enough intensity.
4, the outlet valve valve body adopts arc guiding gutter design, both can guarantee the traffic requirement of high pressure oil pump, can improve valve body structure intensity again.
5, conical design is adopted in delivery valve seat lower volume chamber, reduces the clearance volume of high pressure oil pump, improves the pressure surge of high pressure oil pump efficient and inhibition high pressure oil pump plunger cavity.
It is 230kW that the utility model mainly is applicable to power per cylinder, and pump speed is 3000r/min, and the high pressure oil pump rated fuel delivery is 10L/min, and the common rail system rated working pressure is the common rail for diesel engine high pressure oil pump of 180MPa.
Description of drawings
Fig. 1 is for being total to the turnover oil valve assembly sectional drawing of rail high pressure oil pump;
Fig. 2 is the sectional drawing of oil-feed valve seat;
Fig. 3 is the sectional drawing of delivery valve seat;
Fig. 4 is the outline drawing of fuel-displaced valve body.
Embodiment
Below in conjunction with description of drawings the utility model.
Referring to Fig. 1, this turnover oil valve assembly mainly is comprised of oil-feed valve seat 5, steel ball 4, oiling valve spring 3, delivery valve seat 2, fuel-displaced valve body 1 etc.The turnover oil valve assembly adopts up and down vertically to be arranged, oiling valve is arranged in the bottom, and outlet valve is arranged in top.
Oiling valve adopts ball-valve structure, at oil-feed valve seat 5 steel ball 4 and oiling valve spring 3 is installed.Referring to Fig. 2, the oil inlet hole 51 of oil-feed valve seat is double-pore structure radially, and high pressure oilhole 52 adopts the inclined hole structure of inclination, to effectively reduce the high pressure oil pump clearance volume.
Outlet valve adopts slide-valve structure, the fuel-displaced valve body 1 of delivery valve seat 2 interior installations.Between the lower end of outlet valve valve body 1 and the steel ball 4 oiling valve spring 3 is set.
Referring to Fig. 4, be designed with arc guiding gutter 11 on the outlet valve valve body 1, to improve the structural strength of valve body.
Referring to Fig. 3, the lower volume chamber of delivery valve seat 2 is taper, and is lower large little, is communicated with the high pressure oilhole of oil-feed valve seat, further reduces the clearance volume of high pressure oil pump, suppresses the pressure surge of high pressure oil pump plunger cavity.
The turnover oil valve assembly is installed between pump cover and the plunger bushing.When plunger was descending, low-voltage fuel flowed into from oil-feed valve body middle part radial direction oil hole, pushes steel ball open, enters plunger cavity by oiling valve inclination oil duct; When plunger was up, fuel oil flowed out from oiling valve inclination oil duct, steel ball is pressed in valve seat, and pushes outlet valve open, and fuel oil flows into high pressure oil rail, finishes fuel feeding.
Claims (1)
1. one kind is total to the rail high pressure oil pump with the turnover oil valve assembly, is comprised of oiling valve and outlet valve; It is characterized in that: described turnover oil valve assembly adopts up and down and vertically arranges, oiling valve is arranged in the bottom, and outlet valve is arranged in top; Described oiling valve adopts ball-valve structure, is comprised of oil-feed valve seat and the steel ball and the oiling valve spring that are installed on the oil-feed valve seat; The oil inlet hole of described oil-feed valve seat is double-pore structure radially, and the high pressure oilhole adopts inclined design; Described outlet valve adopts slide-valve structure, formed by delivery valve seat and the fuel-displaced valve body that is installed in the delivery valve seat, be designed with arc guiding gutter on the outlet valve valve body, described oiling valve spring is set between the lower end of outlet valve valve body and the described steel ball, the lower volume chamber of described delivery valve seat is taper, lower large little, be communicated with the high pressure oilhole of oil-feed valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220631336 CN202900500U (en) | 2012-11-26 | 2012-11-26 | Oil inlet and outlet valve assembly for common rail high-pressure oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220631336 CN202900500U (en) | 2012-11-26 | 2012-11-26 | Oil inlet and outlet valve assembly for common rail high-pressure oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202900500U true CN202900500U (en) | 2013-04-24 |
Family
ID=48121179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220631336 Expired - Lifetime CN202900500U (en) | 2012-11-26 | 2012-11-26 | Oil inlet and outlet valve assembly for common rail high-pressure oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202900500U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105464864A (en) * | 2016-01-13 | 2016-04-06 | 温州巴腾电子科技有限公司 | Plunger type high-pressure fuel pump |
| CN106150809A (en) * | 2016-06-29 | 2016-11-23 | 中国北方发动机研究所(天津) | A kind of high compact big-flow high-pressure variable pump inlet valve |
| CN107387281A (en) * | 2017-07-31 | 2017-11-24 | 成都威特电喷有限责任公司 | Diesel common rail oil pump enters oil outlet one-way valve |
| CN113123908A (en) * | 2021-05-24 | 2021-07-16 | 中国重汽集团重庆燃油喷射系统有限公司 | Oil inlet and outlet control mechanism for high-pressure common rail system |
-
2012
- 2012-11-26 CN CN 201220631336 patent/CN202900500U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105464864A (en) * | 2016-01-13 | 2016-04-06 | 温州巴腾电子科技有限公司 | Plunger type high-pressure fuel pump |
| CN105464864B (en) * | 2016-01-13 | 2017-09-12 | 温州巴腾电子科技有限公司 | A kind of plunger type high-pressure fuel pump |
| CN106150809A (en) * | 2016-06-29 | 2016-11-23 | 中国北方发动机研究所(天津) | A kind of high compact big-flow high-pressure variable pump inlet valve |
| CN106150809B (en) * | 2016-06-29 | 2019-06-11 | 中国北方发动机研究所(天津) | A kind of big-flow high-pressure variable oil pump inlet valve |
| CN107387281A (en) * | 2017-07-31 | 2017-11-24 | 成都威特电喷有限责任公司 | Diesel common rail oil pump enters oil outlet one-way valve |
| CN113123908A (en) * | 2021-05-24 | 2021-07-16 | 中国重汽集团重庆燃油喷射系统有限公司 | Oil inlet and outlet control mechanism for high-pressure common rail system |
| CN113123908B (en) * | 2021-05-24 | 2023-12-26 | 重油高科电控燃油喷射系统有限公司 | Oil inlet and outlet control mechanism for high-pressure common rail system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Xie Yuanwen Inventor after: Xiao Chaonan Inventor after: Tu Tianhua Inventor before: Xie Yuanwen Inventor before: Xiao Chaonan Inventor before: Yang Dakui |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: XIE YUANWEN XIAO CHAONAN YANG DAKUI TO: XIE YUANWEN XIAO CHAONAN TU TIANHUA |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130424 |
|
| CX01 | Expiry of patent term |