CN103485950A - Fuel injection pump nozzle assembly - Google Patents
Fuel injection pump nozzle assembly Download PDFInfo
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- CN103485950A CN103485950A CN201310451879.7A CN201310451879A CN103485950A CN 103485950 A CN103485950 A CN 103485950A CN 201310451879 A CN201310451879 A CN 201310451879A CN 103485950 A CN103485950 A CN 103485950A
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- spring
- delivery valve
- fuel
- plunger coupled
- injection pump
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Abstract
The invention discloses a fuel injection pump nozzle assembly comprising a nozzle matching part, a cap nut, an intermediate and a pump body. The intermediate is arranged above the nozzle matching part, the nozzle matching part and the intermediate are fixed on the pump body through the cap nut, an ejection rod, a pressure adjusting spring and a pressure adjusting gasket are mounted on the nozzle matching part in sequence, a fuel passage, a delivery valve matching part and a plunger matching part are arranged inside the pump body, one end of the fuel passage is communicated with the nozzle matching part while the other end of the same is connected with the delivery valve matching part, and the delivery valve matching part is connected with the plunger matching part. By the means, the fuel injection pump nozzle assembly is compact and reasonable in structural assembly, continuous fuel injection of a nozzle can be guaranteed, atomization effect of fuel injected by the nozzle is good, fuel performance is stable, fuel burning efficiency is improved, fuel consumption is reduced, and emission indexes of tail gas of an engine are optimized.
Description
Technical field
The present invention relates to Diesel Engine Technique Field, particularly relate to a kind of Injection Pump injector assembly.
Background technique
In recent years along with the raising of domestic industry level, diesel engine makes great progress on the workmanship of component, but constantly strict the day by day in short supply of petroleum-based energy that reach along with tail-gas law, make for diesel emission standard and more and more stricter to the requirement of economical engine.
Oil nozzle is as the critical piece on diesel injection pump, and the quality of oil spout performance can affect the firing effect of fuel oil.In prior art, the Standard compactedness of oil nozzle is not good, and the fuel atomization effect of ejection is poor, has affected the stable of oil spout, has reduced the efficiency of fuel oil yet.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of Injection Pump injector assembly, the Standard compact and reasonable, can guarantee the continuous injection of oil nozzle fuel oil, the fuel atomization effect of oil nozzle ejection is good, the oil spout stable performance, improve the combustion efficiency of fuel oil, reduced oil consumption, optimized the exhaust index of motor exhaust.
For solving the problems of the technologies described above, the technological scheme that the present invention adopts is: a kind of Injection Pump injector assembly is provided, comprise: oil nozzle couple, tight cap, intermediate and the pump housing, intermediate is arranged on the top of oil nozzle couple, oil nozzle couple and intermediate are fixed on the pump housing by tight cap, push rod, pressure adjusting spring and pressure regulation pad are installed on the oil nozzle couple successively, pump body is provided with oil duct, delivery valve matching parts and plunger coupled parts, one end of oil duct is connected with the oil nozzle couple, the other end of oil duct connects delivery valve matching parts, delivery valve matching parts and plunger coupled parts assembly connection.
In a preferred embodiment of the present invention, assembling place of described tight cap and the pump housing arranges by an O RunddichtringO and the sealing of the 2nd O RunddichtringO.
In a preferred embodiment of the present invention, in described delivery valve matching parts, an end of delivery valve seat is connected with plunger coupled parts, and an end of fuel-displaced spool is provided with oil outlet valve spring and subtracts container.
In a preferred embodiment of the present invention, the assembling end of described delivery valve seat and fuel-displaced spool is provided with the outlet valve gasket seal.
In a preferred embodiment of the present invention, one end of described plunger coupled parts and delivery valve matching parts assembling arrange, the other end of plunger coupled parts is provided with piston spring, spring-loaded body, spring lower seat and the body of holding out, piston spring is connected on plunger coupled parts by spring lower seat and spring-loaded body, and plunger coupled parts also is connected with spring lower seat the body of holding out by piston spring.
In a preferred embodiment of the present invention, described plunger coupled parts is fixedly connected with the pump housing by gland nut, and assembling place of described gland nut and the pump housing is provided with the 3rd O RunddichtringO.
In a preferred embodiment of the present invention, also be provided with fuel control sleeve between described plunger coupled parts and piston spring.
The invention has the beneficial effects as follows: Injection Pump injector assembly Standard compact and reasonable of the present invention, can guarantee the continuous injection of oil nozzle fuel oil, the fuel atomization effect of oil nozzle ejection is good, the oil spout stable performance, improved the combustion efficiency of fuel oil, reduce oil consumption, optimized the exhaust index of motor exhaust.
The accompanying drawing explanation
In order to be illustrated more clearly in the technological scheme in the embodiment of the present invention, in below describing embodiment, the accompanying drawing of required use is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings, wherein:
Fig. 1 is the structural representation of Injection Pump injector assembly one preferred embodiment of the present invention;
In accompanying drawing, the mark of each parts is as follows: 1, oil nozzle couple, 2, tight cap, 3, intermediate, 4, push rod, the 5, the one O RunddichtringO, the 6, the 2nd O RunddichtringO, 7, pressure adjusting spring, 8, pressure regulation pad, 9, the pump housing, 10, subtract container, 11, oil outlet valve spring, 12, outlet valve gasket seal, 13, delivery valve matching parts, 14, plunger coupled parts, 15, gland nut, 16, the 3rd O RunddichtringO, 17, the fuel-flow control sleeve, 18, piston spring, 19, spring-loaded body, 20, spring lower seat, 21, the body of holding out, 22, oil duct.
Embodiment
Below will the technological scheme in the embodiment of the present invention be clearly and completely described, obviously, described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Embodiment based in the present invention, those of ordinary skills, not making all other embodiments that obtain under the creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1, the embodiment of the present invention comprises:
A kind of Injection Pump injector assembly, comprise: oil nozzle couple 1, tight cap 2, intermediate 3 and the pump housing 9, intermediate 3 is arranged on the top of oil nozzle couple 1, push rod 4, pressure adjusting spring 7 and pressure regulation pad 8 are installed on described oil nozzle couple 1 successively, and oil nozzle couple 1 and intermediate 3 are fixed on the pump housing 9 by tight cap 2.
Described tight cap 2 arranges by an O RunddichtringO 5 and the 2nd O RunddichtringO 6 sealings with assembling place of the pump housing 9.
The described pump housing 9 inside are provided with oil duct 22, delivery valve matching parts 13 and plunger coupled parts 14, and an end of oil duct 22 is connected with oil nozzle couple 1, and the other end of oil duct 22 connects delivery valve matching parts 13, delivery valve matching parts 13 and plunger coupled parts 14 assembly connections.
In described delivery valve matching parts 13, an end of delivery valve seat is connected with plunger coupled parts 14, and an end of fuel-displaced spool is provided with oil outlet valve spring 11 and subtracts container 10, and the assembling end of described delivery valve seat and fuel-displaced spool is provided with outlet valve gasket seal 12.
One end of described plunger coupled parts 14 and delivery valve matching parts 13 assemblings arrange, the other end of plunger coupled parts 14 is provided with piston spring 18, spring-loaded body 19, spring lower seat 20 and the body 21 of holding out, piston spring 18 is connected on plunger coupled parts 14 by spring lower seat 20 and spring-loaded body 19, and plunger coupled parts 14 also is connected with spring lower seat 20 body 21 of holding out by piston spring 18.
Described plunger coupled parts is fixedly connected with the pump housing by gland nut, and assembling place of described gland nut and the pump housing is provided with the 3rd O RunddichtringO.
Also be provided with fuel control sleeve 17 between described plunger coupled parts 14 and piston spring 18, when making plunger coupled parts 14, the rotation of the adjusting of the pump housing 9 oil inside offering amounts by fuel control sleeve 17 rotate to realize, compression tappet body 21, can guarantee that fuel control sleeve 17 rotates flexible.
The working procedure of Injection Pump injector assembly of the present invention is:
Plunger in plunger coupled parts 14 moves upward to the plunger bushing upper oil hole and is blocked by plunger, motion due to plunger, fuel oil is extruded, when plunger blocks oilhole, just started the force feed process, plunger continues to rise, oil pressure raises, when pressure exceeds the elastic force of oil outlet valve spring 11 and top oil pressure, just back down the fuel-displaced spool in delivery valve matching parts 13, then enter into oil nozzle couple 1 by oil duct 22, the effect generation high pressure at the interior fuel oil of oil nozzle couple 1 due to pressure adjusting spring 7, then sprayed by the nozzle opening on oil nozzle couple 1.
The beneficial effect of Injection Pump injector assembly of the present invention is:
The Standard compact and reasonable, can guarantee the continuous injection of oil nozzle fuel oil, and the fuel atomization effect of oil nozzle ejection is good, and the oil spout stable performance has improved the combustion efficiency of fuel oil, has reduced oil consumption, has optimized the exhaust index of motor exhaust.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes description of the present invention to do; or directly or indirectly be used in other relevant technical field, all in like manner be included in scope of patent protection of the present invention.
Claims (7)
1. an Injection Pump injector assembly, it is characterized in that, comprise: oil nozzle couple, tight cap, intermediate and the pump housing, intermediate is arranged on the top of oil nozzle couple, oil nozzle couple and intermediate are fixed on the pump housing by tight cap, push rod, pressure adjusting spring and pressure regulation pad are installed on the oil nozzle couple successively, pump body is provided with oil duct, delivery valve matching parts and plunger coupled parts, one end of oil duct is connected with the oil nozzle couple, the other end of oil duct connects delivery valve matching parts, delivery valve matching parts and plunger coupled parts assembly connection.
2. Injection Pump injector assembly according to claim 1, is characterized in that, assembling place of described tight cap and the pump housing arranges by an O RunddichtringO and the sealing of the 2nd O RunddichtringO.
3. Injection Pump injector assembly according to claim 1, is characterized in that, in described delivery valve matching parts, an end of delivery valve seat is connected with plunger coupled parts, and an end of fuel-displaced spool is provided with oil outlet valve spring and subtracts container.
4. Injection Pump injector assembly according to claim 3, is characterized in that, the assembling end of described delivery valve seat and fuel-displaced spool is provided with the outlet valve gasket seal.
5. Injection Pump injector assembly according to claim 1, it is characterized in that, one end of described plunger coupled parts and delivery valve matching parts assembling arrange, the other end of plunger coupled parts is provided with piston spring, spring-loaded body, spring lower seat and the body of holding out, piston spring is connected on plunger coupled parts by spring lower seat and spring-loaded body, and plunger coupled parts also is connected with spring lower seat the body of holding out by piston spring.
6. Injection Pump injector assembly according to claim 5, is characterized in that, described plunger coupled parts is fixedly connected with the pump housing by gland nut, and assembling place of described gland nut and the pump housing is provided with the 3rd O RunddichtringO.
7. Injection Pump injector assembly according to claim 5, is characterized in that, also is provided with fuel control sleeve between described plunger coupled parts and piston spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310451879.7A CN103485950A (en) | 2013-09-29 | 2013-09-29 | Fuel injection pump nozzle assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310451879.7A CN103485950A (en) | 2013-09-29 | 2013-09-29 | Fuel injection pump nozzle assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103485950A true CN103485950A (en) | 2014-01-01 |
Family
ID=49826459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310451879.7A Pending CN103485950A (en) | 2013-09-29 | 2013-09-29 | Fuel injection pump nozzle assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103485950A (en) |
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2013
- 2013-09-29 CN CN201310451879.7A patent/CN103485950A/en active Pending
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140101 |