CN208778130U - A kind of automobile fuel injector oil pressure regulator - Google Patents
A kind of automobile fuel injector oil pressure regulator Download PDFInfo
- Publication number
- CN208778130U CN208778130U CN201821326361.5U CN201821326361U CN208778130U CN 208778130 U CN208778130 U CN 208778130U CN 201821326361 U CN201821326361 U CN 201821326361U CN 208778130 U CN208778130 U CN 208778130U
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- CN
- China
- Prior art keywords
- oil pressure
- pressure regulator
- diaphragm
- fuel injector
- air inlet
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Abstract
The utility model discloses a kind of automobile fuel injector oil pressure regulators, including shell and it is arranged in the intracorporal diaphragm of shell, the case top is provided with fuel tank connector and the shell side is provided with fuel distribution interface tube, the inner end of the fuel tank connector is connected by oil return valve with support plate, diaphragm is provided between the support plate and housing cavity, housing cavity is divided into two chambers up and down by the diaphragm, it further include air inlet pipe and the adjustable plate that bottom chamber is set, spring is provided between the adjustable plate and support plate, the housing bottom is provided with internal thread hole, the air inlet pipe sequentially runs through internal thread hole and adjustable plate is connected to lower chambers.It is improved, oil pressure regulator can be adjusted by structure, improved its versatility, and can be adjusted according to actual needs, mention high control precision.
Description
Technical field
The utility model relates to a kind of automobile fuel injector oil pressure regulators.
Background technique
Oil pressure regulator adjusts the fuel pressure into automobile fuel injector according to the variation of intake manifold vacuum, makes to fire
The difference of oil pressure and intake manifold pressure remains unchanged, and injection pressure is allowed to keep definite value under different throttle openings.
In general, oil pressure regulator structure be it is fixed, be it is nonadjustable, versatility is poor, moreover, after long-time use
Spring is easily deformed influence degree of regulation, and replacement cost is also higher.
Utility model content
In view of the above-mentioned problems, the utility model provides a kind of automobile fuel injector oil pressure regulator, improved by structure, it can
Oil pressure regulator to be adjusted, its versatility is improved, and can be adjusted according to actual needs, mention high control precision.
To realize above-mentioned technical purpose and the technique effect, the utility model is achieved through the following technical solutions:
A kind of automobile fuel injector oil pressure regulator, including shell and setting are in the intracorporal diaphragm of shell, the case top
It is provided with fuel tank connector and the shell side is provided with fuel distribution interface tube, the inner end of the fuel tank connector passes through back
Oil valve is connected with support plate, and diaphragm is provided between the support plate and housing cavity, and housing cavity is divided by the diaphragm
Lower two chambers further include air inlet pipe and the adjustable plate that bottom chamber is arranged in, are provided between the adjustable plate and support plate
Spring, the housing bottom are provided with internal thread hole, and the air inlet pipe sequentially runs through internal thread hole and adjustable plate is connected to cavity of resorption
Room.
It is preferred that the air inlet pipe includes the leading portion being sequentially connected, middle section and back segment, the leading portion radius is less than middle section, institute
The outer surface for stating middle section is provided with external screw thread corresponding with internal thread hole, and the back segment is tube body section.
It is preferred that further including locking nut, the locking nut is provided with internal screw thread corresponding with middle section.
It is preferred that the length in the middle section is 3-8cm.
It is preferred that the fuel tank connector and air inlet pipe are arranged in shell shaft core position.
It is preferred that housing cavity is divided into two chambers up and down by heart position and diaphragm in the housing for support plate setting
Room.
The beneficial effects of the utility model are:
Upper chamber is connected by fuel dispensing tube with fuel tank, and lower chambers are connected with air inlet pipe, by being rotated into tracheae
Adjustable spring pressure, after being fixed by locking nut, when fuel pressure is more than presetting pressure value, above diaphragm
Fuel oil just push the downward compressed spring of diaphragm, open oil return valve, the fuel oil of superpressure flows back to fuel tank, to keep certain fuel oil
Pressure.It is improved, oil pressure regulator can be adjusted by structure, improve its versatility, and can carry out according to actual needs
It adjusts, mentions high control precision.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of automobile fuel injector oil pressure regulator of the utility model；
The mark meaning of attached drawing is as follows:
1: fuel distribution interface tube；2: diaphragm；3: fuel tank connector；4: oil return valve；5: support plate；6: spring；7: interior spiral shell
Pit；8: air inlet pipe；9: nut；10: adjustable plate.
Specific embodiment
Technical solutions of the utility model are described in further detail with specific embodiment with reference to the accompanying drawing, so that
Those skilled in the art can better understand the utility model and can be practiced, but illustrated embodiment is not as to this reality
With novel restriction.
As shown in Figure 1, a kind of automobile fuel injector oil pressure regulator, including shell and setting are in the intracorporal diaphragm 2 of shell, institute
State that case top is provided with fuel tank connector 3 and the shell side is provided with fuel distribution interface tube 1, oil pressure regulator passes through
Fuel tank connector 3 is connected with fuel tank and is connected by fuel distribution interface tube 1 with fuel dispensing tube.In figure, the fuel oil
3 outer end of case interface is stretched out outside shell and inner end is goed deep into housing cavity, and inner end is connected by oil return valve 4 with support plate 5, oil return
Valve 4 is a kind of fluid pressure control valve, is called and makees overflow valve.
Diaphragm 2 is provided between the support plate 5 and housing cavity, housing cavity is divided into two up and down by the diaphragm 2
Chamber, wherein fuel distribution interface tube 1 and fuel tank connector 3 are located in upper chamber.
Oil pressure regulator further includes air inlet pipe 8 and the adjustable plate 10 that bottom chamber is arranged in, between adjustable plate 10 and support plate 5
It is arranged in parallel every the distance and the two of setting, spring 6, the housing bottom is provided between the adjustable plate 10 and support plate 5
It is provided with internal thread hole 7, the air inlet pipe 8 is sequentially connected to lower chambers through internal thread hole 7 and adjustable plate 10.
It is preferred that fuel tank connector 3 and the setting of air inlet pipe 8 are in shell shaft core position, the heart in the housing is arranged in the support plate 5
Housing cavity is divided into two chambers up and down by position and diaphragm 2, and air inlet pipe 8 is applied not only to connection lower chambers and carries out air inlet,
Spring pressure adjusting can also be carried out, i.e. the pressure of fuel system, preferred structure is as follows:
The air inlet pipe 8 includes leading portion, middle section and the back segment being sequentially connected, and the leading portion radius is less than middle section, Ke Yishi
The middle section front end face of existing air inlet pipe 8 engages with adjustable plate 10；The outer surface in the middle section is provided with corresponding with internal thread hole 7
The length adjustment that air inlet pipe 8 protrudes into lower chambers may be implemented in external screw thread, it is preferable that the length in the middle section is 3-8cm；After described
Section be tube body section, may be set to be a linkage section (i.e. adjustment portion and induction part are cut into two parts), for connect into
Gas equipment realizes the conveying of gas, and the whole inner cavity of air inlet pipe 8 is interconnected.
In order to facilitate fixed air inlet pipe 8, it is also preferable to include locking screw main pipe 9, the locking screw main pipe 9 is provided with and middle section
Corresponding internal screw thread.
Upper chamber is connected by fuel dispensing tube with fuel tank, and lower chambers are connected with air inlet pipe, by being rotated into tracheae
Adjustable spring pressure, after being fixed by locking nut, when fuel pressure is more than presetting pressure value, above diaphragm
Fuel oil just push the downward compressed spring of diaphragm, open oil return valve, the fuel oil of superpressure flows back to fuel tank, to keep certain fuel oil
Pressure.It is improved, oil pressure regulator can be adjusted by structure, improve its versatility, it, can be according to reality after long-time use
Border needs to be finely adjusted, and mentions high control precision.
The above is only the preferred embodiments of the utility model, and therefore it does not limit the scope of the patent of the utility model, all
Equivalent structure made based on the specification and figures of the utility model perhaps equivalent process transformation or directly or indirectly fortune
Used in other related technical areas, it is also included in the patent protection scope of the utility model.
Claims (6)
1. a kind of automobile fuel injector oil pressure regulator, including shell and setting are in the intracorporal diaphragm of shell (2), the case top
It is provided with fuel tank connector (3) and the shell side is provided with fuel distribution interface tube (1), the fuel tank connector (3)
Inner end is connected by oil return valve (4) with support plate (5), is provided with diaphragm (2), institute between the support plate (5) and housing cavity
It states diaphragm (2) and housing cavity is divided into two chambers up and down, which is characterized in that further include air inlet pipe (8) and setting in lower chambers
Interior adjustable plate (10) is provided with spring (6) between the adjustable plate (10) and support plate (5), and the housing bottom is provided with
Internal thread hole (7), the air inlet pipe (8) are sequentially connected to lower chambers through internal thread hole (7) and adjustable plate (10).
2. a kind of automobile fuel injector oil pressure regulator according to claim 1, which is characterized in that the air inlet pipe (8)
Including leading portion, middle section and the back segment being sequentially connected, the leading portion radius be less than middle section, the outer surface in the middle section be provided with it is interior
The corresponding external screw thread of threaded hole (7), the back segment are tube body section.
3. a kind of automobile fuel injector oil pressure regulator according to claim 2, which is characterized in that further include locking nut
It manages (9), the locking screw main pipe (9) is provided with internal screw thread corresponding with middle section.
4. a kind of automobile fuel injector oil pressure regulator according to claim 3, which is characterized in that the length in the middle section
For 3-8cm.
5. a kind of automobile fuel injector oil pressure regulator according to claim 1, which is characterized in that the fuel tank connector
(3) it is arranged with air inlet pipe (8) in shell shaft core position.
6. a kind of automobile fuel injector oil pressure regulator according to claim 5, which is characterized in that the support plate (5)
Housing cavity is divided into two chambers up and down by heart position and diaphragm (2) in the housing for setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821326361.5U CN208778130U (en) | 2018-08-17 | 2018-08-17 | A kind of automobile fuel injector oil pressure regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821326361.5U CN208778130U (en) | 2018-08-17 | 2018-08-17 | A kind of automobile fuel injector oil pressure regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208778130U true CN208778130U (en) | 2019-04-23 |
Family
ID=66157271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821326361.5U Active CN208778130U (en) | 2018-08-17 | 2018-08-17 | A kind of automobile fuel injector oil pressure regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208778130U (en) |
-
2018
- 2018-08-17 CN CN201821326361.5U patent/CN208778130U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |