CN2747374Y - Multi-cylinder fuel injection pump with electric controlled monomer combined structure - Google Patents
Multi-cylinder fuel injection pump with electric controlled monomer combined structure Download PDFInfo
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- CN2747374Y CN2747374Y CN 200420075294 CN200420075294U CN2747374Y CN 2747374 Y CN2747374 Y CN 2747374Y CN 200420075294 CN200420075294 CN 200420075294 CN 200420075294 U CN200420075294 U CN 200420075294U CN 2747374 Y CN2747374 Y CN 2747374Y
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- pump
- camshaft
- diesel engine
- electric control
- injection pump
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Abstract
The utility model relates to a multi-cylinder oil injection pump with electric controlled monomer combined structure, comprising a pump chamber matched part, a connecting board mounting component, a front cover plate matched part, a key, a gear wheel hub, a punching outer seat ring needle bearing without an inner seat ring, a camshaft and a camshaft bush, a biserial radial roller bearing with a ball surface, an oil delivery pump, etc. A diesel engine drives the camshaft, an electric control unit pump and other components to cause an oil injection system to regularly supply oil via electric control according to the working condition variation and the performance of the diesel engine through multiple sensors and an electric control unit. On the premise that the structure of the diesel engine and the connecting mode of a fuel system are not changed by the utility model, the electric control unit pump and other relevant parts in the fuel system are improved by external hanging combined structural design, and thus the fuel system of the electric control unit pump can be applied to the diesel engine in the fuel system of the existing inline oil injection pump.
Description
(1) technical field:
The utility model belongs to field of internal combustion engine, relates to a kind of automatically controlled combination of monomers structure multi-cylinder fuel injection pump.
(2) background technique:
At present, the widely used mechanically controlled type structure of China fuel of internal combustion engine system industry Injection Pump improves the Injection Pump ability to work with the method that improves jet pressure, to satisfy the diesel emission performance demands.Along with the increasingly stringent of national Abgasgesetz, the execution of Europe III Abgasgesetz in 2008, prior art can not satisfy the diesel engine performance requirement.Because the restriction on diesel engine structure and the installation dimension, common rail fuel combustion system are existing with Injection Pump diesel engine in upright arrangement optimal selection, but because its core technology is monopolized by external major company, and the coupling cost is too high, domestic present stage also is difficult to popularize uses.Electronically controlled unit pump is domestic has now grasped core technology, and small lot has been put on market, can satisfy diesel engine Europe III Abgasgesetz to the oil-fired system requirement.But existing electronically controlled unit pump with Injection Pump diesel engine use in upright arrangement will carry out very big change to diesel engine general arrangement and processing technology could be realized.Especially block structure will adopt general arrangement design.
(3) summary of the invention:
The purpose of this utility model is to provide a kind of rational in infrastructure, automatically controlled combination of monomers structure multi-cylinder fuel injection pump of the existing diesel engine structure of using mechanically controlled type structure Injection Pump in upright arrangement not needed great change.
The utility model adopts following technological scheme to realize above-mentioned purpose: automatically controlled combination of monomers structure multi-cylinder fuel injection pump, mainly by pump chamber component 1, joining plate build-up member 2, front shroud component 3, gear wheel hub 5, bearing 6,9, with compositions such as camshaft 7 and oil transfer pumps 10, a camshaft 7 that has with oil cylinder equal number cam is set in pump chamber component 1 lower cavity, its two end supports is at bearing 6, on 9, front shroud component 3 and joining plate build-up member 2 are spirally connected with pump chamber component 1, gear wheel hub 5 is enclosed within camshaft 7 drive ends, and oil transfer pump 10 is installed in the anti-drive end of camshaft 7.
Described automatically controlled combination of monomers structure multi-cylinder fuel injection pump, camshaft 7 drive ends in the front shroud component 3 are equipped with the Torrington needle bearing 6 of no inner race, camshaft 7 anti-drive ends are equipped with double row self aligning spherical roller bearing 9, and oil transfer pump 10 is spirally connected with pump chamber component 1.
The utility model compared with prior art can reach following beneficial effect:
Change electronically controlled unit pump conventional mounting mode, change into plug-inly in the diesel-engine body by being built in, driving mode is identical with conventional diesel engine, becomes the oil-fired system relatively independent with diesel engine; Realize diesel engine Europe III emission performance requirement.The design of camshaft assembly parts self positioning structure minimizes the drive system axial force; Adopt pump mounting type in upright arrangement to carry out conceptual design, simplify pump chamber structure, improve pump chamber bulk strength and bearing capacity, realize high-pressure injection, composite structure multi-cylinder fuel injection pump allowable pressure can reach 130Mpa, improves a lot.
(4) description of drawings: Fig. 1 is a structure cut-away view of the present utility model.
(5) embodiment:
Automatically controlled combination of monomers structure multi-cylinder fuel injection pump shown in Figure 1 mainly is made up of pump chamber component 1, Injection Pump joining plate build-up member 2, front shroud component 3, key 4, oil pump gear wheel hub 5, needle bearing 6, camshaft 7, cam shaft bush 8, roller bearing 9, oil transfer pump 10 etc.Cam shaft bush 8 is pressed into the neutral position of pump chamber component 1 lower cavity, needle bearing 6 is pressed in the front shroud component 3, front shroud component 3 is spirally connected with pump chamber component 1, Injection Pump joining plate build-up member 2 is spirally connected with pump chamber component 1, key 4 is compressed into the keyway of the drive end of camshaft 7, and roller bearing 9 is pressed into the anti-drive end of camshaft 7, and camshaft 7 is installed in pump chamber component 1 lower cavity, oil pump gear wheel hub 5 is connected by key 4 with camshaft 7, and oil transfer pump 10 is spirally connected with pump chamber component 1.Be installed in the interior camshaft of pump chamber by Diesel Driven, realize high pressure, the ECU ECU (Electrical Control Unit) is carried out electronic closed loop control to characteristics such as beginning of injection and injection durations improves diesel engine performance, realizes diesel engine Europe III emission performance requirement.
Claims (2)
1. automatically controlled combination of monomers structure multi-cylinder fuel injection pump, mainly by pump chamber component (1), joining plate build-up member (2), front shroud component (3), gear wheel hub (5), bearing (6), (9), and camshaft (7) and oil transfer pump compositions such as (10), it is characterized in that: a camshaft (7) that has with oil cylinder equal number cam is set in pump chamber component (1) lower cavity, its two end supports is in bearing (6), (9) on, front shroud component (3) and joining plate build-up member (2) are spirally connected with pump chamber component (1), gear wheel hub (5) is enclosed within camshaft (7) drive end, and oil transfer pump (1 0) is installed in the anti-drive end of camshaft (7).
2. automatically controlled combination of monomers structure multi-cylinder fuel injection pump according to claim 1, it is characterized in that: camshaft (7) drive end in the front shroud component (3) is equipped with the Torrington needle bearing (6) of no inner race, camshaft (7) anti-drive end is equipped with double row self aligning spherical roller bearing (9), and oil transfer pump (10) is spirally connected with pump chamber component (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420075294 CN2747374Y (en) | 2004-12-03 | 2004-12-03 | Multi-cylinder fuel injection pump with electric controlled monomer combined structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420075294 CN2747374Y (en) | 2004-12-03 | 2004-12-03 | Multi-cylinder fuel injection pump with electric controlled monomer combined structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2747374Y true CN2747374Y (en) | 2005-12-21 |
Family
ID=35707913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420075294 Expired - Fee Related CN2747374Y (en) | 2004-12-03 | 2004-12-03 | Multi-cylinder fuel injection pump with electric controlled monomer combined structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2747374Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434344A (en) * | 2011-12-02 | 2012-05-02 | 王晓燕 | In-line synthesis type high-pressure oil supply pump control system |
| CN105179130A (en) * | 2015-11-03 | 2015-12-23 | 南岳电控(衡阳)工业技术有限公司 | Device capable of preventing failure of camshaft sensor |
| CN106704063A (en) * | 2015-11-13 | 2017-05-24 | 现代汽车欧洲技术中心有限公司 | Pump for injection nozzle and method for producing pump |
-
2004
- 2004-12-03 CN CN 200420075294 patent/CN2747374Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434344A (en) * | 2011-12-02 | 2012-05-02 | 王晓燕 | In-line synthesis type high-pressure oil supply pump control system |
| CN105179130A (en) * | 2015-11-03 | 2015-12-23 | 南岳电控(衡阳)工业技术有限公司 | Device capable of preventing failure of camshaft sensor |
| CN105179130B (en) * | 2015-11-03 | 2018-01-05 | 南岳电控（衡阳）工业技术股份有限公司 | A kind of device for preventing camshaft-signal sensor from failing |
| CN106704063A (en) * | 2015-11-13 | 2017-05-24 | 现代汽车欧洲技术中心有限公司 | Pump for injection nozzle and method for producing pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |