CN109681359A - Equal pressure oil outlet valve component - Google Patents
Equal pressure oil outlet valve component Download PDFInfo
- Publication number
- CN109681359A CN109681359A CN201910124419.0A CN201910124419A CN109681359A CN 109681359 A CN109681359 A CN 109681359A CN 201910124419 A CN201910124419 A CN 201910124419A CN 109681359 A CN109681359 A CN 109681359A
- Authority
- CN
- China
- Prior art keywords
- valve
- constant pressure
- seat
- oil outlet
- isobaric
- 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.)
- Pending
Links
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 claims abstract description 19
- 206010008469 Chest discomfort Diseases 0.000 claims abstract description 10
- 230000008094 contradictory effect Effects 0.000 claims description 22
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 238000002347 injection Methods 0.000 abstract description 14
- 239000007924 injection Substances 0.000 abstract description 14
- 239000000446 fuel Substances 0.000 abstract description 9
- 239000003921 oil Substances 0.000 description 21
- 238000010586 diagram Methods 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- 238000013475 authorization Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
- F02M59/46—Valves
- F02M59/462—Delivery valves
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The present invention relates to a kind of equal pressure oil outlet valve component, including delivery valve holder, constant pressure valve and isobaric valve seat, the equipressure valve seat is connected at delivery valve holder outlet at bottom；There are high pressure chests on the inside of the delivery valve holder upper end, the fuel-displaced port of high pressure chest is connected with adjustment gasket, the adjustment gasket bottom is fitted with volume reduction body, numerical value is set with oil outlet valve spring on port at the top of the volume reduction body and constant pressure valve, and constant pressure valve bottom valve body is inserted into isobaric valve seat.It is the structure that single cylinder diesel high pressure strengthens injection pump present invention employs equal pressure delivery valve matching parts, solves fuel system secondary injection, optimize fuel injection characteristic, improve the stability of injection pump.
Description
Technical field
The present invention relates to pump valve structure, especially a kind of equal pressure oil outlet valve component.
Background technique
What the fuel system of horizontal bar diesel engine currently on the market generallyd use is the fuel-displaced couple of constant volume type, not can solve combustion
The secondary injection of oil system is unfavorable for reducing Single Cylinder Diesel Engine Emission pollutant and improves the economy of horizontal bar diesel engine operation.
It is to meet power, the economy, emission performance requirement institute that modern diesel engine is increasingly stringenter at present that high-pressure injection, which is strengthened,
The requisite measure taken, therefore, equal pressure delivery valve matching parts have efficient fuel-displaced for single cylinder diesel high pressure reinforcing injection pump
Performance.
State Intellectual Property Office of the People's Republic of China discloses a utility model about constant pressure delivery valve, this is practical
Novel authorization public platform are as follows: 204458155 U of CN.Including delivery valve, fuel-displaced valve core, isobaric valve spring, spring base, steel
Ball and one-way valve seat, the one-way valve seat are the concave bodies being combined by a bellmouth and a round hole；Steel ball and cone
Shape hole is tangent, and isobaric valve spring and spring base are in the round hole of one-way valve seat, steel ball, spring base and isobaric valve spring according to
Secondary connection, the other end of isobaric valve spring are connect with fuel-displaced valve core；The outer wall of one-way valve seat is connect with fuel-displaced valve core.
Summary of the invention
The technical problem to be solved by the invention is to provide a kind of optimization fuel injection characteristic, the high equal pressure of oil-proofness goes out out
Oil valve assembly.
In order to solve the above technical problems, the present invention provides a kind of equal pressure oil outlet valve component, including delivery valve holder,
Constant pressure valve and isobaric valve seat, the equipressure valve seat are connected at delivery valve holder outlet at bottom；In the delivery valve holder upper end
There are high pressure chest, the fuel-displaced port of high pressure chest is connected with adjustment gasket for side, and the adjustment gasket bottom is fitted with volume reduction body, institute
It states numerical value on the port at the top of volume reduction body and constant pressure valve and is set with oil outlet valve spring, constant pressure valve bottom valve body is inserted into equipressure
In valve seat.
Further, volume reduction body bottom is extended with contradictory piece under volume reduction body, contradictory piece and constant pressure valve under the volume reduction body
Upper contradictory piece ejection docking.
Further, be equipped with several groups oil discharge passage with the constant pressure valve lower tube, the oil feeder connection end with
Steel ball is filled between the isobaric valve spring seat of honour.
Further, the isobaric valve spring seat of honour bottom is extended with contradictory piece under constant pressure valve, contradicts under the constant pressure valve
Part is docked with constant pressure valve spring lower seat ejection, is set with constant pressure valve between contradictory piece and constant pressure valve spring lower seat under the constant pressure valve
Spring.
It after adopting the above structure, compared with prior art, is single cylinder bavin present invention employs equal pressure delivery valve matching parts
Oil machine high pressure strengthens the structure of injection pump, solves fuel system secondary injection, optimizes fuel injection characteristic, improves injection pump
Stability.
Detailed description of the invention
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is the structural schematic diagram of equal pressure oil outlet valve component of the present invention.
Fig. 2 is the structural schematic diagram of equal pressure oil outlet valve component constant pressure valve of the present invention.
In figure: 1 be delivery valve holder, 2 be adjustment gasket, 3 be volume reduction body, 3-1 is contradictory piece under volume reduction body, 4 is fuel-displaced
Valve spring, 5 be constant pressure valve, 5-1 is contradictory piece on constant pressure valve, 5-2 be oil discharge passage, 6 be steel ball, 7 be the isobaric valve spring seat of honour,
Contradictory piece under 7-1 equipressure valve spring, 8 be isobaric valve seat, 9 be isobaric valve spring, 10 be constant pressure valve spring lower seat.
Specific embodiment
As shown in Figure 1, a kind of equal pressure oil outlet valve component, including delivery valve holder, constant pressure valve and isobaric valve seat, it is described etc.
Pressure valve seat is connected at delivery valve holder outlet at bottom；There are high pressure chest, the high pressure chests on the inside of 1 upper end of delivery valve holder
Fuel-displaced port is connected with adjustment gasket 2, and 2 bottom of adjustment gasket is fitted with volume reduction body 3, and the volume reduction body 3 is pushed up with constant pressure valve 5
Numerical value is set with oil outlet valve spring 4 on the port in portion, and the 5 bottom valve body of constant pressure valve is inserted into isobaric valve seat 8.Its work is former
Reason are as follows: injection pump plunger fuel feeding terminates, and equal pressure delivery valve matching parts high pressure chest fuel pressure value is more than that isobaric valve spring 9 pre-tightens
When the unlatching value of the steel ball of power and oil outlet valve spring, the channel at steel ball is opened and 4 restoring force of oil return release and oil outlet valve spring
To certain pressure value, oil return valve is closing and sealing off fuel oil high pressure chest, to ensure that certain pressure avoids the secondary of fuel system
Injection.
As depicted in figs. 1 and 2,3 bottom of volume reduction body is extended with contradictory piece 3-1 under volume reduction body, supports under the volume reduction body
Contact element 3-1 is docked with contradictory piece 5-1 ejection on constant pressure valve.Wherein, contradictory piece 3-1 and contradictory piece 5-1 on constant pressure valve under volume reduction body
The stability of fuel-displaced docking can be improved, while the material quality of two groups of contradictory piece is harder, it is wear-resisting and be unlikely to deform.
As shown in Fig. 2, being equipped with several groups oil discharge passage 5-2, the oil channel 5-2 with 5 lower tube of constant pressure valve
Steel ball 6 is filled between arrival end and the isobaric valve spring seat of honour 7.Wherein, it is efficiently drained to allow oil discharge passage 5-2 to have
Effect is filled with steel ball 6 between the oily channel 5-2 arrival end and the isobaric valve spring seat of honour 7.
As depicted in figs. 1 and 2,7 bottom of the isobaric valve spring seat of honour is extended with contradictory piece 7-1 under constant pressure valve, described etc.
Contradictory piece 7-1 is docked with 10 ejection of constant pressure valve spring lower seat under pressure valve, under the constant pressure valve under contradictory piece 7-1 and isobaric valve spring
Isobaric valve spring 9 is set between seat 10.
Specific embodiments of the present invention have been described above, and it is to lift that those skilled in the art, which should be appreciated that these only,
Example explanation, can make various changes or modifications to present embodiment, without departing from the principle and substance of the present invention, of the invention
Protection scope is only limited by the claims that follow.
Claims (4)
1. a kind of equal pressure oil outlet valve component, including delivery valve holder, constant pressure valve and isobaric valve seat, the equipressure valve seat are connected to
At delivery valve holder outlet at bottom；It is characterized in that: on the inside of delivery valve holder (1) upper end, there are high pressure chest, the high pressure chests
Fuel-displaced port is connected with adjustment gasket (2), and adjustment gasket (2) bottom is fitted with volume reduction body (3), the volume reduction body (3) and
Numerical value is set with oil outlet valve spring (4) on port at the top of constant pressure valve (5), and constant pressure valve (5) bottom valve body is inserted into equipressure
In valve seat (8).
2. equal pressure oil outlet valve component according to claim 1, it is characterized in that: the volume reduction body (3) bottom is extended with and subtracts
Contradictory piece (3-1) under volume, contradictory piece (3-1) is docked with contradictory piece on constant pressure valve (5-1) ejection under the volume reduction body.
3. equal pressure oil outlet valve component according to claim 1, it is characterized in that: being filled with the constant pressure valve (5) lower tube
Equipped with several groups oil discharge passage (5-2), steel is filled between oil channel (5-2) arrival end and the isobaric valve spring seat of honour (7)
Ball (6).
4. equal pressure oil outlet valve component according to claim 3, it is characterized in that: described equipressure valve spring the seat of honour (7) bottom
It is extended with contradictory piece under constant pressure valve (7-1), contradictory piece (7-1) and constant pressure valve spring lower seat (10) ejection pair under the constant pressure valve
It connects, is set with isobaric valve spring (9) between contradictory piece (7-1) and constant pressure valve spring lower seat (10) under the constant pressure valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910124419.0A CN109681359A (en) | 2019-02-19 | 2019-02-19 | Equal pressure oil outlet valve component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910124419.0A CN109681359A (en) | 2019-02-19 | 2019-02-19 | Equal pressure oil outlet valve component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109681359A true CN109681359A (en) | 2019-04-26 |
Family
ID=66195967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910124419.0A Pending CN109681359A (en) | 2019-02-19 | 2019-02-19 | Equal pressure oil outlet valve component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109681359A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050098652A1 (en) * | 2003-11-10 | 2005-05-12 | Denso Corporation | Three-way valve and fuel injection device having the same |
| CN203476573U (en) * | 2013-08-13 | 2014-03-12 | 南京威孚金宁有限公司 | Constant pressure oil outlet valve |
| CN207554247U (en) * | 2018-04-13 | 2018-06-29 | 上海电装燃油喷射有限公司 | Plunger and bare of injection pump |
| CN209637927U (en) * | 2019-02-19 | 2019-11-15 | 常州市金坛三联泵业有限公司 | Equal pressure oil outlet valve component |
-
2019
- 2019-02-19 CN CN201910124419.0A patent/CN109681359A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050098652A1 (en) * | 2003-11-10 | 2005-05-12 | Denso Corporation | Three-way valve and fuel injection device having the same |
| CN203476573U (en) * | 2013-08-13 | 2014-03-12 | 南京威孚金宁有限公司 | Constant pressure oil outlet valve |
| CN207554247U (en) * | 2018-04-13 | 2018-06-29 | 上海电装燃油喷射有限公司 | Plunger and bare of injection pump |
| CN209637927U (en) * | 2019-02-19 | 2019-11-15 | 常州市金坛三联泵业有限公司 | Equal pressure oil outlet valve component |
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