CN204419369U - For the controlling device of Injection Pump fuel-flow control - Google Patents
For the controlling device of Injection Pump fuel-flow control Download PDFInfo
- Publication number
- CN204419369U CN204419369U CN201420775207.1U CN201420775207U CN204419369U CN 204419369 U CN204419369 U CN 204419369U CN 201420775207 U CN201420775207 U CN 201420775207U CN 204419369 U CN204419369 U CN 204419369U
- Authority
- CN
- China
- Prior art keywords
- spring
- jet needle
- spring seat
- enriching
- seat
- Prior art date
- 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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Abstract
The utility model discloses a kind of controlling device for Injection Pump fuel-flow control, jet needle (2) is steel cylinder, and be located in hollow bolt (1), inwall at the bottom of spring seat (4) cylinder abuts with jet needle (2), is provided with correcting spring (3) between spring seat (4) and jet needle (2); The outside of spring seat (4) arranges and starts enriching spring (5), the step surface of one end and spring seat (4) nozzle end of starting enriching spring (5) offsets, the other end and the plug (6) that start enriching spring (5) offset, and plug (6) is screw.The good reliability that the utility model regulates automatically, fluctuates little, can reduce the oil consumption of diesel engine, ensures working life of diesel engine, has that design is ingenious, structure simple, is easy to assembling, highly versatile, the feature such as applied widely; Can be adjusted the decrement starting enriching spring by the position of adjusting screw, to adapt to the needs of different situation, adjustment operation is simple, convenient.
Description
Technical field
The utility model belongs to technical field of engines, specifically, and particularly a kind of controlling device for diesel injection pump fuel-flow control.
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 controlling device for Injection Pump fuel-flow control providing a kind of good stability.
The technical solution of the utility model is as follows: a kind of controlling device for Injection Pump fuel-flow control, comprise jet needle (2), its key is: described jet needle (2) is steel cylinder, and be located in hollow bolt (1), hollow bolt (1) is stretched out outward in one end of this jet needle (2), the end face of jet needle (2) this end is sphere, at the other end pocketed springs seat (4) of jet needle (2), spring seat (4) is tubular structure, inwall at the bottom of this spring seat (4) cylinder abuts with jet needle (2), the nozzle of spring seat (4) is flaring structure, 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), this startup enriching spring (5) is located on spring seat (4) outward, the step surface of one end and spring seat (4) nozzle end of starting enriching spring (5) offsets, the other end and the plug (6) that start enriching spring (5) offset, and start enriching spring (5) locating column (6a) of plug (6) end is inserted in, described plug (6) is screw, and this screw screws 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.
Start the outside that enriching spring shackle is placed on spring seat, structure is simpler, compact; The nozzle of spring seat is flaring structure, at the outer wall forming station terrace of its enlarging, for startup enriching spring retainer, startup enriching spring is located good; Plug is screw, easy accessibility, and it is firm to be connected with hollow bolt, and can be regulated the decrement starting enriching spring as required by screw, and adjustment operation is very convenient; The end of screw is formed with locating column, and this locating column stretches into and starts in enriching spring, plays location, guiding to startup enriching spring.
Jet needle is steel cylinder, and not only selection is convenient, is easy to processing and fabricating, and structural strength and good corrosion resistance, can not deform or corrosion.One end that jet needle matches with speed regulating control panel is sphere, and contact performance is better, is conducive to the working life of improving jet needle.
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, the oil consumption of diesel engine can be reduced, ensure working life of diesel engine, have that design is ingenious, structure simple, be easy to assembling, highly versatile, the feature such as applied widely; Can be adjusted the decrement starting enriching spring by the position of adjusting screw, to adapt to the needs of different situation, adjustment operation is simple, convenient.
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 is steel cylinder, this 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 side of jet needle 2 is sphere, and this sphere 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.The nozzle of spring seat 4 is flaring structure, and the outer wall of spring seat 4 nozzle is formed with step surface.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.Above-mentioned startup enriching spring 5 is located on outside spring seat 4, the step surface of the right-hand member and spring seat 4 nozzle end that start enriching spring 5 offsets, the left end and the plug 6 that start enriching spring 5 offset, and the locating column 6a that plug 6 end is integrally formed is inserted in by the left end starting enriching spring 5, have gap between locating column 6a and spring seat 4, the size in this gap is determined according to actual needs.Plug 6 is preferably screw, and this screw screws in the port of hollow bolt 1, screw and hollow bolt 1 screw-thread fit.
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. the controlling device for Injection Pump fuel-flow control, comprise jet needle (2), it is characterized in that: described jet needle (2) is steel cylinder, and be located in hollow bolt (1), hollow bolt (1) is stretched out outward in one end of this jet needle (2), the end face of jet needle (2) this end is sphere, at the other end pocketed springs seat (4) of jet needle (2), spring seat (4) is tubular structure, inwall at the bottom of this spring seat (4) cylinder abuts with jet needle (2), the nozzle of spring seat (4) is flaring structure, 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), this startup enriching spring (5) is located on spring seat (4) outward, the step surface of one end and spring seat (4) nozzle end of starting enriching spring (5) offsets, the other end and the plug (6) that start enriching spring (5) offset, and start enriching spring (5) locating column (6a) of plug (6) end is inserted in, described plug (6) is screw, and this screw screws in the port of hollow bolt (1).
2. the controlling device for Injection Pump fuel-flow control 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. the controlling device for Injection Pump fuel-flow control 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 |
|---|---|---|---|
| CN201420775207.1U CN204419369U (en) | 2014-12-10 | 2014-12-10 | For the controlling device of Injection Pump fuel-flow control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420775207.1U CN204419369U (en) | 2014-12-10 | 2014-12-10 | For the controlling device of Injection Pump fuel-flow control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204419369U true CN204419369U (en) | 2015-06-24 |
Family
ID=53469747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420775207.1U Expired - Fee Related CN204419369U (en) | 2014-12-10 | 2014-12-10 | For the controlling device of Injection Pump fuel-flow control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204419369U (en) |
-
2014
- 2014-12-10 CN CN201420775207.1U patent/CN204419369U/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 |