CN204419364U - Diesel injection pump fuel-flow control controlling mechanism - Google Patents
Diesel injection pump fuel-flow control controlling mechanism Download PDFInfo
- Publication number
- CN204419364U CN204419364U CN201420774124.0U CN201420774124U CN204419364U CN 204419364 U CN204419364 U CN 204419364U CN 201420774124 U CN201420774124 U CN 201420774124U CN 204419364 U CN204419364 U CN 204419364U
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- spring
- jet needle
- spring seat
- seat
- correcting
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Abstract
The utility model discloses a kind of diesel injection pump fuel-flow control controlling mechanism, jet needle (2) is positioned at one end pocketed springs seat (4) of hollow bolt (1), inwall at the bottom of spring seat (4) cylinder abuts with jet needle (2), correcting spring (3) is provided with between spring seat (4) and jet needle (2), one end of correcting spring (3) and the inwall at the bottom of spring seat (4) cylinder offset, and the annular boss (2a) on the other end of correcting spring (3) and jet needle (2) offsets; Arrange in the outside of spring seat (4) and start enriching spring (5), one end and the spring seat (4) of this startup enriching spring (5) offset, and the other end and the plug (6) that start enriching spring (5) offset.The utility model can play fine setting effect to the pump oil mass of diesel engine when diesel load changes automatically, and the good reliability automatically regulated, fluctuate little, the oil consumption of diesel engine can be reduced, ensure the working life of diesel engine.
Description
Technical field
The utility model belongs to technical field of engines, specifically, and particularly a kind of diesel injection pump fuel-flow control controlling mechanism.
Background technique
At present, the fuel-flow control of diesel injection pump is regulated automatically by special mechanism.Existing fuel-flow control controlling mechanism is made up of spring, jet needle etc., although relatively simple for structure, and poor stability, the less effective automatically regulated; Meanwhile, fluctuation when automatically regulating is comparatively large, can increase the oil consumption of diesel engine, make diesel engine easily produce carbon distribution, thus cause the user cost of diesel engine to increase, and can affect the working life of diesel engine.
Model utility content
Technical problem to be solved in the utility model is the diesel injection pump fuel-flow control controlling mechanism providing a kind of good stability.
The technical solution of the utility model is as follows: a kind of diesel injection pump fuel-flow control controlling mechanism, comprise jet needle (2), its key is: described jet needle (2) is located in hollow bolt (1), this jet needle (2) is positioned at one end pocketed springs seat (4) of hollow bolt (1), spring seat (4) is tubular structure, inwall at the bottom of this spring seat (4) cylinder abuts with jet needle (2), correcting spring (3) is provided with between spring seat (4) and jet needle (2), one end of correcting spring (3) and the inwall at the bottom of spring seat (4) cylinder offset, annular boss (2a) on the other end of correcting spring (3) and jet needle (2) offsets, annular boss (2a) is spacing by the step surface in hollow bolt (1), arrange in the outside of described spring seat (4) and start enriching spring (5), one end and the spring seat (4) of this startup enriching spring (5) offset, the other end and the plug (6) that start enriching spring (5) offset, and described plug (6) is fixedly inlaid in the port of hollow bolt (1).
Adopt above technological scheme, between plug and spring seat, there is certain interval, jet needle is made to have activity surplus in its axial direction, start enriching spring and pretightening force is applied with to spring seat and jet needle, jet needle is enable automatically to carry out fine motion according to the load variations of diesel engine, to realize the regulable control to Injection Pump oil mass.Correcting spring in spring seat matches with startup enriching spring, jet needle is only moved in its axial direction, deflection can not be there is, effective like this stability that improve adjustment, reduce fluctuation during adjustment, diesel engine is operated all the time under comparatively economic oil consumption, decreases the carbon distribution situation of diesel engine, both reduce user cost, substantially prolongs again the working life of diesel engine.
As preferably, described hollow bolt (1), jet needle (2), correcting spring (3), spring seat (4) and start enriching spring (5) five shaft axis point-blank.
Conveniently processing and fabricating, guarantees structural strength, and described spring seat (4) is steel stamping part.
Beneficial effect: the utility model can play fine setting effect to the pump oil mass of diesel engine when diesel load changes automatically, and the good reliability automatically regulated, fluctuate little, can reduce the oil consumption of diesel engine, ensure the working life of diesel engine.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail:
As shown in Figure 1, hollow bolt 1 is arranged on the body of diesel engine, wears jet needle 2 in hollow bolt 1, and jet needle 2 and hollow bolt 1 Spielpassung, the shaft axis of jet needle 2 and the shaft axis of hollow bolt 1 are point-blank.Jet needle 2 such as illustrated right-hand member stretches out outside hollow bolt 1, and the right-hand member of jet needle 2 is connected with speed regulating control panel (not shown in FIG.).The left end of jet needle 2 is positioned at hollow bolt 1, and at the left end pocketed springs seat 4 of jet needle 2, spring seat 4 is the cylinder-like structure of nozzle towards right, and is preferably steel stamping part.Inwall at the bottom of spring seat 4 abuts with the left side of jet needle 2, correcting spring 3 is provided with between spring seat 4 and jet needle 2, correcting spring 3 ring set is in the outside of jet needle 2 left end, and the shaft axis of the shaft axis of correcting spring 3 and the shaft axis of spring seat 4 and jet needle 2 point-blank.The left end of correcting spring 3 and the inwall at the bottom of spring seat 4 offset, and the annular boss 2a that the right-hand member of correcting spring 3 and jet needle 2 are integrally formed offsets, and annular boss 2a is spacing by the step surface in hollow bolt 1 to the right.
As shown in Figure 1, arrange in the outside of spring seat 4 and start enriching spring 5, this startup enriching spring 5 is positioned at hollow bolt 1, and the shaft axis of startup enriching spring 5 and the shaft axis of jet needle 2 are point-blank.The right-hand member and the spring seat 4 that start enriching spring 5 offset, and the left end and the plug 6 that start enriching spring 5 offset, and plug 6 is fixedly inlaid in the port of hollow bolt 1, has gap between plug 6 and spring seat 4, and the size in this gap is determined according to actual needs.
Although be below described preferred embodiment of the present utility model by reference to the accompanying drawings, but the utility model is not limited to above-mentioned embodiment, above-mentioned embodiment is only schematic instead of determinate, those of ordinary skill in the art is under enlightenment of the present utility model, under the prerequisite without prejudice to the utility model aim and claim, can make like multiple types and representing, as changed the moulding of hollow bolt, or change the material of component, or the structure of change plug and mounting type etc., such conversion all falls within protection domain of the present utility model.
Claims (3)
1. a diesel injection pump fuel-flow control controlling mechanism, comprise jet needle (2), it is characterized in that: described jet needle (2) is located in hollow bolt (1), this jet needle (2) is positioned at one end pocketed springs seat (4) of hollow bolt (1), spring seat (4) is tubular structure, inwall at the bottom of this spring seat (4) cylinder abuts with jet needle (2), correcting spring (3) is provided with between spring seat (4) and jet needle (2), one end of correcting spring (3) and the inwall at the bottom of spring seat (4) cylinder offset, annular boss (2a) on the other end of correcting spring (3) and jet needle (2) offsets, annular boss (2a) is spacing by the step surface in hollow bolt (1), arrange in the outside of described spring seat (4) and start enriching spring (5), one end and the spring seat (4) of this startup enriching spring (5) offset, the other end and the plug (6) that start enriching spring (5) offset, and described plug (6) is fixedly inlaid in the port of hollow bolt (1).
2. diesel injection pump fuel-flow control controlling mechanism according to claim 1, is characterized in that: the shaft axis of described hollow bolt (1), jet needle (2), correcting spring (3), spring seat (4) and startup enriching spring (5) five point-blank.
3. diesel injection pump fuel-flow control controlling mechanism according to claim 1 and 2, is characterized in that: described spring seat (4) is steel stamping part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420774124.0U CN204419364U (en) | 2014-12-10 | 2014-12-10 | Diesel injection pump fuel-flow control controlling mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420774124.0U CN204419364U (en) | 2014-12-10 | 2014-12-10 | Diesel injection pump fuel-flow control controlling mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204419364U true CN204419364U (en) | 2015-06-24 |
Family
ID=53469742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420774124.0U Expired - Fee Related CN204419364U (en) | 2014-12-10 | 2014-12-10 | Diesel injection pump fuel-flow control controlling mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204419364U (en) |
-
2014
- 2014-12-10 CN CN201420774124.0U patent/CN204419364U/en not_active Expired - Fee Related
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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: 20150624 Termination date: 20151210 |
|
| EXPY | Termination of patent right or utility model |