CN209637930U - A kind of oil pressure adjusts and pulsation damping device - Google Patents
A kind of oil pressure adjusts and pulsation damping device Download PDFInfo
- Publication number
- CN209637930U CN209637930U CN201920130257.7U CN201920130257U CN209637930U CN 209637930 U CN209637930 U CN 209637930U CN 201920130257 U CN201920130257 U CN 201920130257U CN 209637930 U CN209637930 U CN 209637930U
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- China
- Prior art keywords
- oil
- pulsation damping
- oil pressure
- shell
- chamber
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Abstract
The utility model provides a kind of oil pressure and adjusts and pulsation damping device, including a shell, is equipped with oil pressure regulation room and pulsation damping room in shell；Oil pressure regulation room includes oil pressure adjusting cavity and air chamber, is additionally provided with oil return apparatus in oil pressure adjusting cavity；The upper end of oil pressure adjusting cavity is equipped with air chamber, is equipped with pressure-regulating device in air chamber.Pulsation damping room includes pulsation damping chamber and buffer unit；Pulsation damping chamber includes shell, partition and two pieces of secondary diaphragms, and partition is equipped with the oil-through-hole of connection oil pressure adjusting cavity and pulsation damping chamber, and one end that oil-through-hole is located at pulsation damping chamber is equipped with check-valves；Oil outlet is additionally provided on shell.Cooperation in the utility model by air chamber, pressure-regulating device and oil return apparatus stablizes oil pressure adjusting cavity fuel pressure under the pressure set at one, the fuel oil in pulsation damping chamber is flowed under the action of buffer unit, reduces pulsation or noise that fuel oil is generated by a variety of causes.
Description
Technical field
The utility model relates to engine arts, and in particular to a kind of oil pressure adjusts and pulsation damping device.
Background technique
Fuel pressure regulator in engine is the size for adjusting fuel pressure, by system oil pressure and air inlet branch
Manage the control of (negative pressure).Its effect be to automatically keep entire oil hydraulic system fuel pressure be certain value, make fuel feeding general pipeline
It is certain value that interior oil pressure is only poor with air intake branch pressure, and existing oil pressure regulation room is due to oil return apparatus and hydraulic pressure control device
Design problem often make occur the excessive or too small phenomenon of oil pressure in fuel pressure regulator.In addition, by oil pressure adjusting cavity
Motion of membrane and the movements such as oil return apparatus opening and closing influence, oil supply system fuel oil oil pressure can generate certain pulsation and pulsation and make an uproar
Sound, the accuracy of Injection Control will be will affect by not being controlled.
Utility model content
The utility model in view of the deficiencies of the prior art, had not only been adjustable oil pressure but also can buffer hydro pulse to provide one kind
Device, concrete scheme is as follows:
A kind of oil pressure adjusts and pulsation damping device, including a shell, and oil pressure regulation room and pulsation are equipped in the shell
Surge chamber；
Oil pressure adjusting cavity is equipped in the oil pressure regulation room, the oil pressure adjusting cavity includes the shell, partition, the first film
Piece and open up oil inlet and oil return opening on the housing；Oil return apparatus is additionally provided in the oil pressure adjusting cavity；The oil
Pressing regulation room further includes air chamber, and the air chamber includes the shell, partition, primary diaphragm and opens up on the housing
Vacuum adapter；Pressure-regulating device is equipped in the air chamber, the pressure-regulating device includes applying to the primary diaphragm
Add the first elastic device of certain elastic pressure；
Pulsation damping chamber and buffer unit are equipped in the pulsation damping room；The pulsation damping chamber include the shell,
Partition and two pieces of secondary diaphragms being mounted between the shell and the partition, the partition, which is equipped with, connects the oil pressure tune
The oil-through-hole of chamber and the pulsation damping chamber is saved, one end that the oil-through-hole is located at the pulsation damping chamber is equipped with check-valves；Institute
The shell for stating pulsation damping chamber is equipped with oil outlet；The buffer unit is used to buffer the intracavitary pulsation punching of the pulsation damping
It hits, the buffer unit includes two surge chambers for being respectively provided at the pulsation damping chamber or more two sides, and the surge chamber includes
Secondary diaphragm and shell, the shell are equipped with air hole, are equipped in the surge chamber and apply certain bullet to the secondary diaphragm
Second elastic device of property pressure.
Based on above-mentioned, the oil return apparatus includes a needle-valve, and the needle-valve includes needle and valve body, and the needle includes handle
Hand and needle-shaped sealing axis.
Based on above-mentioned, one end of the handle is mounted on the primary diaphragm by needle seat, the needle-shaped sealing axis
It is mounted on the other end of the handle, the valve body is mounted on the oil return opening.
Based on above-mentioned, first elastic device includes the adjusting screw for running through and being spirally connected on the housing, the tune
Section screw includes the adjustable side positioned at hull outside and installation end positioned at enclosure interior, and the one of the installation end and an elastic component
End is fixedly installed togather, and the other end of the elastic component and the primary diaphragm are fixedly mounted, and the elastic component, which is in, to be squeezed
State.
Based on above-mentioned, the elastic component includes that the pedestal being installed together with the installation end and one end are mounted on the base
Several springs on seat, the other end of the spring and the primary diaphragm are fixedly mounted.
Based on above-mentioned, second elastic device includes that one end is mounted on the case inside, the other end and described second
Several pairs of counteracting springs that diaphragm is fixedly mounted, the spring apply certain pressure to the secondary diaphragm.
Based on above-mentioned, the oil outlet of the pulse buffer device is equipped with filter device.
Based on above-mentioned, the filter device includes a strainer.
The utility model has substantive features and progress compared with the prior art, specifically, the utility model have with
Lower advantage:
1, in the utility model using needle-valve as the oil return apparatus in oil pressure adjusting cavity, needle-valve includes needle and valve body,
Needle links together with the diaphragm in oil pressure adjusting cavity, and valve body is installed together with the oil return opening on shell；Under normality, needle-valve
In closed state, when oil pressure increases, the diaphragm in oil pressure adjusting cavity is influenced to generate floating by oil pressure, and needle also moves therewith
Dynamic, needle-valve is gradually opened, and the fuel oil in oil pressure adjusting cavity is just flowed out from valve body, and the oil pressure made is in a stationary value, oil pressure control
It makes also sensitiveer.
2, in the utility model, it is equipped with pulsation damping chamber and buffer unit in pulsation damping room, wherein leads in buffer unit
Several hydro pulses intracavitary to pulsation damping to the counteracting spring for being applied with pulsation damping chamber elastic pressure are crossed to buffer,
This structure design had both avoided pulsation damping room to be influenced by spring resonance, while also improving the buffering effect to hydro pulse
Fruit.
Detailed description of the invention
Fig. 1 is the schematic diagram of internal structure of the utility model.
In figure: 1. shells；2. partition；3. oil pressure adjusting cavity；4. air chamber；5. adjusting screw；6. pedestal；7.
Vacuum adapter；8. needle seat；9. oil inlet；10. diaphragm seat；11. spring；12. counteracting spring；13. pulsation damping chamber；
14. needle；15. valve body；16. oil return opening；17. oil-through-hole；18. check-valves；19. strainer；20. oil outlet；21. thoroughly
Stomata；22. primary diaphragm；23. secondary diaphragm.
Specific embodiment
Below by specific embodiment, the technical solution of the utility model is described in further detail.
It is adjusted and pulsation damping device as shown in Figure 1, the utility model provides a kind of oil pressure, including a shell 1, the shell
The oil pressure regulation room for being used to adjust oil pressure and pulsation damping room two parts for being buffered to hydro pulse are equipped in body 1.
Wherein, be equipped with oil pressure adjusting cavity 3 in the oil pressure regulation room, the oil pressure adjusting cavity 3 include the shell 1, every
Plate 2, primary diaphragm 22 and the oil inlet 9 and oil return opening 16 being provided on the shell 1.
Oil return apparatus is additionally provided in oil pressure adjusting cavity 3；The oil return apparatus includes a needle-valve, and the needle-valve includes needle
14 and valve body 15, the needle 14 includes handle and needle-shaped sealing axis.One end of the handle is mounted on described by needle seat 8
On primary diaphragm 22, the needle-shaped sealing axis is mounted on the other end of the handle, needle-shaped sealing axis under normal conditions with valve body 15
Through-hole fit together, and the valve body 15 is mounted on the oil return opening 16.
The oil pressure regulation room further includes air chamber 4, and the air chamber 4 includes the shell 1, partition 2, primary diaphragm 22
And it is provided with the vacuum adapter 7 on the shell 1.
It is equipped with pressure-regulating device in the air chamber 4, the pressure-regulating device includes applying to the primary diaphragm 22
Add the first elastic device of certain elastic pressure.First elastic device includes the tune for running through and being screwed on the shell 1
Screw 5 is saved, the screw 5 that adjusts includes the adjustable side outside shell 1 and the installation end inside shell 1, the peace
Dress end and one end of an elastic component are fixedly installed togather, the other end of the elastic component and the fixed peace of the primary diaphragm 22
Dress.
It is used to be easily installed, the elastic component includes the pedestal 6 being installed together with the installation end and one end installation
Several springs 11 on the pedestal 6, the other end of the spring 11 and the primary diaphragm 22 are fixedly mounted.
Under normality, the elastic component is in squeezed state, be applied with certain pressure to the primary diaphragm 22, is set with this
Stand oil presses the oil pressure in adjusting cavity 3；By rotating the adjustable side, thus it is possible to vary the squeezed state of elastic component, i.e. change oil pressure
Oil pressure map value in adjusting cavity 3.
It should be noted that vacuum adapter 7 is connect with air throttle, when throttle opening is smaller, air inlet pipe is together with air
Room 4 is the low pressure of condition of high vacuum degree, and diaphragm overcomes 11 power of spring to move up, and needle 14, which also moves up, opens needle-valve, fuel flow returns；When
When throttle opening is larger, air inlet pipe is the hyperbar with rough vacuum together with air chamber 4, and diaphragm is in 11 power of air pressure and spring
It is moved down under collective effect, needle-valve, which moves down, to be gradually closed.Needle-valve can be achieved during gradually closure or openness to recirculating oil quantity
Accurate control.
Pulsation damping chamber 13 and buffer unit are equipped in pulsation damping room；The pulsation damping chamber 13 include the shell 1,
Partition 2 and two pieces of secondary diaphragms 23 being mounted between the shell 1 and the partition 2, the partition 2 are equipped with described in connection
The oil-through-hole 17 of oil pressure adjusting cavity 3 and the pulsation damping chamber 13, the oil-through-hole 17 are located at the one of the pulsation damping chamber 13
End is equipped with check-valves 18, is designed by this structure, fuel oil can only be from oil pressure adjusting cavity 3 to 13 one-way flow of pulsation damping chamber.
Shell 1 on the pulsation damping chamber 13 is equipped with oil outlet 20；The buffer unit is used to buffer the pulsation
Pulsatile impact in cushion chamber 13, the buffer unit include be respectively provided at two of about 13 two sides of pulsation damping chamber it is slow
Room is rushed, the surge chamber includes secondary diaphragm 23 and shell 1, and the shell 1 is equipped with the air hole 21 of connection atmospheric pressure, described
The second elastic device for applying certain elastic pressure to the secondary diaphragm 23 is equipped in surge chamber.
Second elastic device includes that one end is mounted on 1 inside of the shell, the other end by diaphragm seat 10 with it is described
Several pairs of counteracting springs 12 that secondary diaphragm 23 is fixedly mounted, the spring apply certain pressure to the secondary diaphragm 23, lead to
It crosses counteracting spring 12 to buffer hydro pulse, both avoided pulsation damping room is influenced by spring resonance, while also to oil
Pressure pulsation plays better buffer function.
In addition, being equipped with filter device, including a strainer 19 at the oil outlet 20 of pulse buffer device, it is used to filter fuel
Interior existing impurity.
In use, fuel oil enters oil pressure adjusting cavity 3, under the action of pressure-regulating device, oil pressure adjusting cavity from oil inlet 9
Oil pressure in 3 has certain pressure, and enters pulsation damping chamber 13 by oil-through-hole 17, and the fuel oil after buffering is from oil outlet 20
Outflow is burnt.
Finally it should be noted that: above embodiments are only to illustrate the technical solution of the utility model rather than limit it
System；Although the utility model has been described in detail with reference to the preferred embodiment, those of ordinary skill in the art should
Understand: specific implementation of the utility model can still be modified or is equally replaced to some technical characteristics
It changes；Without departing from the spirit of technical solutions of the utility model, should all cover in the claimed technical solution of the utility model
In range.
Claims (8)
1. a kind of oil pressure adjusts and pulsation damping device, it is characterised in that: be equipped with oil pressure including a shell, in the shell and adjust
Room and pulsation damping room；
Be equipped with oil pressure adjusting cavity in the oil pressure regulation room, the oil pressure adjusting cavity include the shell, partition, primary diaphragm with
And open up oil inlet and oil return opening on the housing；Oil return apparatus is additionally provided in the oil pressure adjusting cavity；The oil pressure tune
Saving room further includes air chamber, and the air chamber includes the shell, partition, primary diaphragm and opens up on the housing true
Sky adapter tube；Pressure-regulating device is equipped in the air chamber, the pressure-regulating device includes applying one to the primary diaphragm
Determine the first elastic device of elastic pressure；
Pulsation damping chamber and buffer unit are equipped in the pulsation damping room；The pulsation damping chamber includes the shell, partition
And two pieces of secondary diaphragms being mounted between the shell and the partition, the partition, which is equipped with, connects the oil pressure adjusting cavity
With the oil-through-hole of the pulsation damping chamber, one end that the oil-through-hole is located at the pulsation damping chamber is equipped with check-valves；The arteries and veins
The shell of dynamic cushion chamber is equipped with oil outlet；The buffer unit is used to buffer the intracavitary pulsatile impact of the pulsation damping, institute
Stating buffer unit includes two surge chambers for being respectively provided at the pulsation damping chamber or more two sides, and the surge chamber includes the second film
Piece and shell, the shell are equipped with air hole, are equipped in the surge chamber and apply certain elastic pressure to the secondary diaphragm
The second elastic device.
2. oil pressure as described in claim 1 adjusts and pulsation damping device, it is characterised in that: the oil return apparatus includes a needle
Valve, the needle-valve include needle and valve body, and the needle includes handle and needle-shaped sealing axis.
3. oil pressure as claimed in claim 2 adjusts and pulsation damping device, it is characterised in that: one end of the handle passes through valve
Needle stand is mounted on the primary diaphragm, and the needle-shaped sealing axis is mounted on the other end of the handle, and the valve body is mounted on
On the oil return opening.
4. oil pressure as claimed in claim 3 adjusts and pulsation damping device, it is characterised in that: first elastic device includes
The adjusting screw for running through and being spirally connected on the housing, the screw that adjusts includes positioned at the adjustable side of hull outside and positioned at shell
The installation end in internal portion, one end of the installation end and an elastic component are fixedly installed togather, the other end of the elastic component and
The primary diaphragm is fixedly mounted, and the elastic component is in squeezed state.
5. oil pressure as claimed in claim 4 adjusts and pulsation damping device, it is characterised in that: the elastic component include with it is described
The pedestal and one end that installation end is installed together are mounted on several springs on the pedestal, the other end of the spring and institute
State primary diaphragm fixed installation.
6. oil pressure as claimed in claim 5 adjusts and pulsation damping device, it is characterised in that: second elastic device includes
One end is mounted on the case inside, several pairs of counteracting springs that the other end and the secondary diaphragm are fixedly mounted, the spring
Certain pressure is applied to the secondary diaphragm.
7. oil pressure as claimed in any one of claims 1 to 6 adjusts and pulsation damping device, it is characterised in that: the oil outlet
Equipped with filter device.
8. oil pressure as claimed in claim 7 adjusts and pulsation damping device, it is characterised in that: the filter device includes a filter
Net.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920130257.7U CN209637930U (en) | 2019-01-25 | 2019-01-25 | A kind of oil pressure adjusts and pulsation damping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920130257.7U CN209637930U (en) | 2019-01-25 | 2019-01-25 | A kind of oil pressure adjusts and pulsation damping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209637930U true CN209637930U (en) | 2019-11-15 |
Family
ID=68479293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920130257.7U Expired - Fee Related CN209637930U (en) | 2019-01-25 | 2019-01-25 | A kind of oil pressure adjusts and pulsation damping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209637930U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681362A (en) * | 2019-01-25 | 2019-04-26 | 河南科技学院 | A kind of oil pressure adjusts and pulsation damping device |
-
2019
- 2019-01-25 CN CN201920130257.7U patent/CN209637930U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681362A (en) * | 2019-01-25 | 2019-04-26 | 河南科技学院 | A kind of oil pressure adjusts and pulsation damping device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191115 Termination date: 20210125 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |