CN206233967U - Engine oil pump with decompression function - Google Patents
Engine oil pump with decompression function Download PDFInfo
- Publication number
- CN206233967U CN206233967U CN201621346444.1U CN201621346444U CN206233967U CN 206233967 U CN206233967 U CN 206233967U CN 201621346444 U CN201621346444 U CN 201621346444U CN 206233967 U CN206233967 U CN 206233967U
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- China
- Prior art keywords
- oil pump
- oil
- lubricating oil
- engine
- relief valve
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Abstract
The utility model discloses a kind of engine oil pump with decompression function, go out oil pocket including oil pump casing, lubricating oil pump oil suction chamber and lubricating oil pump, also including for controlling the relief valve of the fuel-displaced pressure of lubricating oil pump and being arranged in oil pump casing and control the relief hole for pressure release oil return by relief valve；Go out in oil pocket the relief hole for setting and can directly being opened and closed with lubricating oil pump oil suction chamber and connected in lubricating oil pump, and relief hole is controlled by relief valve under oil pressure effect, after the oil pressure of whole oil circuit in lubricating oil pump exceedes setting value, relief valve control relief hole is connected with lubricating oil pump oil suction chamber, so, lubricating oil pump goes out the too high machine oil of oil pressure in oil pocket and is directly entered into oil suction chamber through relief hole, realizing the oil pressure of whole oil circuit quickly reduces, after the completion of pressure release, pressure release valve closure relief hole, the work back to normal of whole oil circuit, so as to reach the effect of other parts and the seepage for preventing engine inner engine oil hypertonia and producing in protection engine.
Description
Technical field
The utility model is related to engine art, more particularly to a kind of engine oil pump with decompression function.
Background technology
With the development of science and technology and the improvement of people's living standards, automobile has come into huge numbers of families, as people
The topmost vehicles of go off daily.At present, the lubrication of automobile engine will mainly moisten by the lubricating oil pump of automobile engine
Lubricating oil is continuously supplied to the friction surface of each parts of engine, to reduce the abrasion of each component surface.Lubricating oil pump
During lubricating oil is supplied, the flow and pressure of lubricating oil must assure that within the scope of necessarily.If lubricating oil
Oil pressure is too low, and lubricating oil cannot be made full of component surface, so as to cause the lubricant effect between each parts bad, makes zero
The surface abrasion of part.In addition, the pump oil pressure of lubricating oil pump can be raised as engine speed increases, and when in lube system
Oil circuit silts up：As when bearing clearance is too small or machine oil viscosity that use is too high, can also caused that charge oil pressure is raised.Prior art
In, to ensure lubricating oil pump oil pressure stabilization, it is provided with relief valve more, but pressure-relief valve structure is complex, and be required in relief valve
, to realize pressure release, not only pressure leak process can not be smoothed out, and be more expensive to manufacture, erector for upper setting oil inlet and oil-out
Sequence is complicated, is unfavorable for simplifying structure and cost-effective.
Accordingly, it would be desirable to be improved to existing engine oil pump, make it that peace can be completed in less spatial dimension
The stabilization realization of decompression function is filled and ensured, the structural compactness of lubricating oil pump and engine is improved, finally simplifies assembly technology, section
About product cost.
Utility model content
In view of this, the utility model provides a kind of pressure release type lubricating oil pump, and it can complete peace in less spatial dimension
The stabilization realization of decompression function is filled and ensured, the structural compactness of lubricating oil pump and engine is improved, finally simplifies assembly technology, section
About product cost.
Engine oil pump with decompression function of the present utility model, including oil pump casing, lubricating oil pump oil suction chamber and
Connected with lubricating oil pump oil suction chamber and to form the lubricating oil pump of oil circuit and go out oil pocket, also including the relief valve for controlling the fuel-displaced pressure of lubricating oil pump
Be arranged in oil pump casing and by relief valve control directly open and close connect lubricating oil pump go out oil pocket and lubricating oil pump oil suction chamber with
In the relief hole of pressure release oil return.
Further, the end face of oil pump casing is directly connected with the box sealing of engine, the inner chamber of oil pump casing with
The casing of engine surrounds lubricating oil pump oil suction chamber jointly and lubricating oil pump goes out oil pocket.
Further, oil pump casing is provided with the relief valve installation cavity for accommodating relief valve, and relief valve installation cavity is located at machine oil
Pump oil suction chamber top, lubricating oil pump goes out oil pocket positioned at lubricating oil pump oil suction chamber lower section.
Further, relief valve installation cavity is formed by the inner chamber of the valve body being wholely set with the oil pump casing, relief valve
The spring between valve body inner top and plunger is peaked at including plunger and bullet, plunger stretches into through lubricating oil pump oil suction chamber let out from top to bottom
Relief hole is opened and closed with realizing being moved up and down in the case where oil pressure is acted in pressure hole.
Further, relief valve installation cavity is coaxially disposed with relief hole.
Further, plunger sets up in the side vertical with the shaft axis of lubricating oil pump.
Further, be provided with valve seat in relief valve installation cavity, be provided with plunger outside for valve seat location fit
Limited shoulder.
The beneficial effects of the utility model：Pressure release type lubricating oil pump of the present utility model, lubricating oil pump go out in oil pocket set can
The relief hole for connecting directly is opened and closed with lubricating oil pump oil suction chamber, and relief hole is controlled by relief valve under oil pressure effect, works as lubricating oil pump
After the oil pressure of interior whole oil circuit exceedes setting value, relief valve control relief hole is connected with lubricating oil pump oil suction chamber, and so, machine oil is pumped out
The too high machine oil of oil pressure is directly entered into oil suction chamber through relief hole in oil pocket, is realized the oil pressure of whole oil circuit and is quickly reduced, when
After the completion of pressure release, pressure release valve closure relief hole, whole oil circuit work back to normal, so as to reach other zero in protection engine
The effect of part and the seepage for preventing engine inner engine oil hypertonia and producing；The utility model can quickly realize pressure leak process,
Oil return process need not be participated in by setting hydraulic fluid port on relief valve, and it is simple structure, more compact, assembly technology is greatly simplified, save
About product cost.
Brief description of the drawings
The utility model is further described with reference to the accompanying drawings and examples.
Fig. 1 is the utility model structural representation；
Fig. 2 be Fig. 1 in A-A to structural representation.
Specific embodiment
Fig. 1 is the utility model structural representation, Fig. 2 be in Fig. 1 A-A to structural representation, as shown in the figure：The present embodiment
The engine oil pump with decompression function, including oil pump casing 1, lubricating oil pump oil suction chamber 2 and connect with lubricating oil pump oil suction chamber 2
The logical lubricating oil pump for forming oil circuit goes out oil pocket 3, also including for controlling the relief valve of the fuel-displaced pressure of lubricating oil pump and being arranged on lubricating oil pump
In housing 1 and connection lubricating oil pump is directly opened and closed by relief valve control and go out oil pocket 3 and lubricating oil pump oil suction chamber 2 for pressure release oil return
Relief hole 4；As depicted in figs. 1 and 2, oil pump casing 1 is internally provided with and lubricating oil pump oil suction chamber 2 and oil-feed pump are gone out oil pocket isolation
Dividing plate 5, relief hole 4 is formed on dividing plate, when lubricating oil pump goes out oil pressure is too high in oil pocket 3 when, relief valve is pushed up out, a part of machine
Oil is passed straight back in lubricating oil pump oil suction chamber 2 by relief hole 4, plays pressure release effect, lubricating oil pump is gone out the engine oil pressure of oil pocket 3
Maintain appropriate pressure, it is to avoid damage the oil duct annex such as oil pressure gauge, oil pipe, seal because oil pressure of lubricating system is excessive；Pressure release
Valve can be using the valve core structure of existing relief valve, such as plunger type or ball type valve element.
In the present embodiment, the end face 1a of oil pump casing 1 is directly connected with the box sealing of engine, oil pump casing 1
The casing of inner chamber and engine surround lubricating oil pump oil suction chamber 2 jointly and lubricating oil pump goes out oil pocket 3；I.e. the lubricating oil pump need not set close
Capping plate, its end face is directly connected to be fixed on the casing of engine and sets sealing, when the casing for being tightly connected rear engine
Collectively form lubricating oil pump oil suction chamber 2 with the inner chamber of oil pump casing 1 and lubricating oil pump go out oil pocket 3, the structure may be such that lubricating oil pump with
The connection of engine is compacter, and reduces Assembly part quantity, has greatly saved cost.
In the present embodiment, oil pump casing 1 is provided with the relief valve installation cavity 6 for accommodating relief valve, relief valve installation cavity 6
In the top of lubricating oil pump oil suction chamber 2, lubricating oil pump goes out oil pocket 3 positioned at the lower section of lubricating oil pump oil suction chamber 2；Relief hole 4 is arranged on isolation machine oil
Pump oil suction chamber 2 and lubricating oil pump go out on the dividing plate of oil pocket 3, and when under pressure release state, relief hole 4 is to the He of lubricating oil pump oil suction chamber 2
Lubricating oil pump goes out oil pocket 3 and is formed and connects up and down, and relief valve is arranged on the top of relief hole 4, and in other words relief valve can be from side vertically
Relief hole 4 is opened and closed upwards, is not only easy to realize, and the horizontal volume of lubricating oil pump will not be increased, so as to reduce machine oil
The overall structure space of pump.
In the present embodiment, relief valve installation cavity 6 is formed by the inner chamber of the valve body 7 being wholely set with the oil pump casing 1,
Relief valve includes that plunger 8 and bullet peak at the spring 9 between the inner top of valve body 7 and plunger 8, and plunger 8 passes through lubricating oil pump from top to bottom
Oil suction chamber 2 stretches into relief hole 4 relief hole 4 is opened and closed with realizing being moved up and down in the case where oil pressure is acted on；Valve body 7 is oil pump casing
1 is integrally formed, and the inner chamber of valve body 7 forms relief valve installation cavity 6, and plunger 8 is arranged vertically in relief valve installation cavity 6,
And under non-pressure release state, the lower end of plunger 8 stretches into the envelope formed in relief hole 4 to relief hole 4 through lubricating oil pump oil suction chamber 2
Close, when lubricating oil pump go out the oil pressure of oil pocket 3 it is too high when, spring 9 shrinks, plunger 8 upwards move, when the lower end of plunger 8 moves upward to machine
When in oil pump oil suction chamber 2, the too high machine oil of oil pressure is directly entered by relief hole 4 and pressure release is completed in lubricating oil pump oil suction chamber 2；It is overall
Pressure leak process smoothness is without hindrance, can quickly realize.
In the present embodiment, relief valve installation cavity 6 is coaxially disposed with relief hole 4；To moving up and down with good for plunger 8
Guidance quality, does not result in the eccentric wear of plunger 8.
In the present embodiment, plunger 8 sets up in the side vertical with the axis of rotating shaft 10 of lubricating oil pump；Plunger 8 is in side vertically
Set up, the axis of plunger 8 is perpendicular with the rotor axis direction of lubricating oil pump but both are non-intersect.
Valve seat 6a is provided with the present embodiment, in relief valve installation cavity 6, be provided with the outside of plunger 8 for valve seat 6a
The limited shoulder 8a of location fit；The lower end of spring 9 is supported and is terminated on limited shoulder, plunger 8 when moving downward, limited shoulder and valve seat 6a
Cooperatively form axial limiting.
Finally illustrate, above example is only used to illustrate the technical solution of the utility model and unrestricted, although ginseng
The utility model has been described in detail according to preferred embodiment, it will be understood by those within the art that, can be to this
The technical scheme of utility model is modified or equivalent, without deviating from the objective and model of technical solutions of the utility model
Enclose, it all should cover in the middle of right of the present utility model.
Claims (7)
1. a kind of engine oil pump with decompression function, it is characterised in that：Including oil pump casing, lubricating oil pump oil suction chamber and
Connected with lubricating oil pump oil suction chamber and to form the lubricating oil pump of oil circuit and go out oil pocket, also including the relief valve for controlling the fuel-displaced pressure of lubricating oil pump
Be arranged in oil pump casing and by relief valve control directly open and close connect lubricating oil pump go out oil pocket and lubricating oil pump oil suction chamber with
In the relief hole of pressure release oil return.
2. the engine oil pump with decompression function according to claim 1, it is characterised in that：The oil pump casing
End face be directly connected with the box sealing of engine, the inner chamber of the oil pump casing and the casing of engine surround institute jointly
State lubricating oil pump oil suction chamber and the lubricating oil pump goes out oil pocket.
3. the engine oil pump with decompression function according to claim 1, it is characterised in that：The oil pump casing
The relief valve installation cavity for accommodating relief valve is provided with, the relief valve installation cavity is located at lubricating oil pump oil suction chamber top, the machine oil
Oil pocket is pumped out positioned at lubricating oil pump oil suction chamber lower section.
4. the engine oil pump with decompression function according to claim 3, it is characterised in that：The relief valve is installed
Chamber is formed by the inner chamber of the valve body being wholely set with the oil pump casing, and the relief valve includes that plunger and bullet are peaked in valve body
Spring between top and plunger, the plunger is stretched into the relief hole to realize through lubricating oil pump oil suction chamber from top to bottom
The lower up and down motion of oil pressure effect opens and closes to the relief hole.
5. the engine oil pump with decompression function according to claim 4, it is characterised in that：The relief valve is installed
Chamber is coaxially disposed with the relief hole.
6. the engine oil pump with decompression function according to claim 5, it is characterised in that：The plunger with machine
The side that the shaft axis of oil pump are vertical sets up.
7. the engine oil pump with decompression function according to claim 6, it is characterised in that：The relief valve is installed
Valve seat is provided with chamber, is provided with for the limited shoulder with valve seat location fit on the plunger outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621346444.1U CN206233967U (en) | 2016-12-09 | 2016-12-09 | Engine oil pump with decompression function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621346444.1U CN206233967U (en) | 2016-12-09 | 2016-12-09 | Engine oil pump with decompression function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206233967U true CN206233967U (en) | 2017-06-09 |
Family
ID=58978972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621346444.1U Active CN206233967U (en) | 2016-12-09 | 2016-12-09 | Engine oil pump with decompression function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206233967U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640259A (en) * | 2016-12-09 | 2017-05-10 | 重庆小康工业集团股份有限公司 | Pressure-relief engine oil pump |
-
2016
- 2016-12-09 CN CN201621346444.1U patent/CN206233967U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640259A (en) * | 2016-12-09 | 2017-05-10 | 重庆小康工业集团股份有限公司 | Pressure-relief engine oil pump |
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