CN106640259A - Pressure-relief engine oil pump - Google Patents
Pressure-relief engine oil pump Download PDFInfo
- Publication number
- CN106640259A CN106640259A CN201611126850.1A CN201611126850A CN106640259A CN 106640259 A CN106640259 A CN 106640259A CN 201611126850 A CN201611126850 A CN 201611126850A CN 106640259 A CN106640259 A CN 106640259A
- Authority
- CN
- China
- Prior art keywords
- oil pump
- oil
- pressure
- relief valve
- lubricating oil
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/02—Pressure lubrication using lubricating pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/04—Filling or draining lubricant of or from machines or engines
- F01M11/0458—Lubricant filling and draining
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N13/00—Lubricating-pumps
Abstract
The invention discloses a pressure-relief engine oil pump. The pressure-relief engine oil pump comprises an oil pump housing, an oil pump oil inlet cavity and an oil pump oil outlet cavity, and further comprises a pressure relief valve used for controlling the oil outlet pressure of the oil pump and a pressure relief hole formed in the oil pump housing and controlled by the pressure relief valve to relieve pressure of returned oil. As the pressure relief hole which can directly communicate with the oil pump oi inlet cavity in an opening and closing manner is formed in the oil pump oil outlet cavity and controlled by the pressure relief valve under the action of oil pressure, when the oil pressure of the whole oil line in the oil pump exceeds a set value, the pressure relief valve controls the pressure relief hole to communicate with the oil pump oil inlet cavity, and oil with excessively high oil pressure in the oil pump oil outlet cavity directly enters the oil inlet cavity through the pressure relief hole, so that the oil pressure of the whole oil line is quickly reduced. After finish of pressure relief, the pressure relief valve closes the pressure relief hole, and the whole oil line returns to normal work, so that the function of protecting other parts in an engine is achieved, and leakage caused by excessively high oil pressure in the engine is prevented.
Description
Technical field
The present invention relates to engine art, more particularly to one kind can pressure release type engine oil pumps.
Background technology
With the development and the improvement of people's living standards of science and technology, automobile has come into huge numbers of families, has become people
The topmost vehicles of go off daily.At present, the lubrication of automobile engine mainly will moisten by the lubricating oil pump of automobile engine
Lubricating oil is continuously supplied to the friction surface of each parts of electromotor, to reduce the abrasion of each component surface.Lubricating oil pump
During supply lubricating oil, 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 charge oil pressure to raise.Prior art
In, it is to ensure that lubricating oil pump oil pressure is stablized, 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 for upper setting oil-in and oil-out, and manufacturing cost is high, erector
Sequence is complicated, is unfavorable for simplifying structure and cost-effective.
Accordingly, it would be desirable to be improved to existing engine oil pump so as to peace can be completed in less spatial dimension
The stable realization of decompression function is filled and ensured, the structural compactness of lubricating oil pump and electromotor is improved, finally simplifies assembly technology, section
About product cost.
The content of the invention
In view of this, the present invention provides a kind of pressure release type lubricating oil pump, and it can complete to install simultaneously in less spatial dimension
Ensure the stable realization of decompression function, improve the structural compactness of lubricating oil pump and electromotor, finally simplify assembly technology, save and produce
Product cost.
The present invention can pressure release type engine oil pump, including oil pump casing, lubricating oil pump oil suction chamber and enter with lubricating oil pump
Oil pocket connects and to form the lubricating oil pump of oil circuit and go out oil pocket, also includes for controlling the relief valve of the fuel-displaced pressure of lubricating oil pump and being arranged on machine
In oil pump case and connection lubricating oil pump is directly opened and closed by relief valve control and go out oil pocket and lubricating oil pump oil suction chamber for pressure release oil return
Relief hole.
Further, the end face of oil pump casing is directly connected with the box sealing of electromotor, the inner chamber of oil pump casing with
The casing of electromotor 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
In pressure hole relief hole is opened and closed with realizing being moved up and down under oil pressure effect.
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, relief valve installs intracavity and is provided with valve seat, be provided with plunger outside for valve seat location fit
Limited shoulder.
Beneficial effects of the present invention：The pressure release type lubricating oil pump of the present invention, arranging in the fuel-displaced intracavity of lubricating oil pump can directly and machine
Oil pump oil suction chamber opens and closes the relief hole of connection, and relief hole is controlled by relief valve under oil pressure effect, when whole oil in lubricating oil pump
The oil pressure on road exceedes after setting value, and relief valve control relief hole is connected with lubricating oil pump oil suction chamber, so, the fuel-displaced intracavity oil of lubricating oil pump
Press through the direct Jing relief holes of high machine oil and enter into oil-feed intracavity, realizing the oil pressure of whole oil circuit quickly reduces, when pressure release is completed
Afterwards, pressure release valve closure relief hole, whole oil circuit work back to normal, so as to reach the effect of other parts in protection electromotor
The seepage produced with electromotor inner engine oil hypertonia is prevented；The present invention can quickly realize pressure leak process, without the need for by pressure release
Hydraulic fluid port is set on valve and participates in oil return process, and it is simple structure, more compact, assembly technology is greatly simplified, save product cost.
Description of the drawings
With reference to the accompanying drawings and examples the invention will be further described.
Fig. 1 is schematic structural view of the invention；
Fig. 2 is A-A in Fig. 1 to structural representation.
Specific embodiment
Fig. 1 is schematic structural view of the invention, Fig. 2 be in Fig. 1 A-A to structural representation, as shown in the figure：The present embodiment can
Pressure release type engine oil pump, including oil pump casing 1, lubricating oil pump oil suction chamber 2 and connect to form oil circuit with lubricating oil pump oil suction chamber 2
Lubricating oil pump go out oil pocket 3, also include the relief valve for controlling the fuel-displaced pressure of lubricating oil pump and be arranged in oil pump casing 1 and by
Relief valve control directly opens and closes connection lubricating oil pump and goes out the relief hole 4 of oil pocket 3 and lubricating oil pump oil suction chamber 2 for pressure release oil return；Such as
Shown in Fig. 1 and Fig. 2, oil pump casing 1 is internally provided with the dividing plate 5 for going out oil pocket isolation to lubricating oil pump oil suction chamber 2 and oil-feed pump, lets out
Pressure hole 4 be formed on dividing plate, when lubricating oil pump goes out oil pressure is too high in oil pocket 3 when, relief valve is backed down, a part of machine oil pass through pressure release
Hole 4 is passed straight back in lubricating oil pump oil suction chamber 2, plays pressure release effect, the engine oil pressure that lubricating oil pump goes out oil pocket 3 is maintained suitably
Pressure, it is to avoid the oil duct adnexa such as oil gauge, oil pipe, sealing member is damaged because oil pressure of lubricating system is excessive；Relief valve can be using existing
There are the valve core structure of 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 electromotor, oil pump casing 1
The casing of inner chamber and electromotor 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 arrange close
Capping plate, on the casing that its end face is directly connected to be fixed on electromotor and arranges 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 can cause lubricating oil pump with
The connection of electromotor 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 vertically side
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 from top to bottom lubricating oil pump
Oil suction chamber 2 stretches in relief hole 4 relief hole 4 is opened and closed with realizing being moved up and down under oil pressure effect；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, and plunger 8 is moved upwards, 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 in lubricating oil pump oil suction chamber 2 by relief hole 4 and completes pressure release；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；Moving up and down with good to plunger 8
Guidance quality, does not result in the eccentric wear of plunger 8.
In the present embodiment, plunger 8 sets up in the vertical side of the axis of rotating shaft 10 with lubricating oil pump；Plunger 8 is in vertically side
Set up, the axis of plunger 8 is perpendicular with the rotor axis direction of lubricating oil pump but both are non-intersect.
In the present embodiment, valve seat 6a is provided with 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 unrestricted to illustrate technical scheme, although with reference to compared with
Good embodiment has been described in detail to the present invention, it will be understood by those within the art that, can be to the skill of the present invention
Art scheme is modified or equivalent, and without deviating from the objective and scope of technical solution of the present invention, it all should cover at this
In the middle of the right of invention.
Claims (7)
1. one kind can pressure release type engine oil pump, it is characterised in that：Including oil pump casing, lubricating oil pump oil suction chamber and and machine oil
Pump oil suction chamber connects and to form the lubricating oil pump of oil circuit and go out oil pocket, also includes the relief valve for controlling the fuel-displaced pressure of lubricating oil pump and setting
In oil pump casing and connection lubricating oil pump is directly opened and closed by relief valve control and go out oil pocket and lubricating oil pump oil suction chamber for pressure release
The relief hole of oil return.
2. according to claim 1 can pressure release type engine oil pump, it is characterised in that：The end face of the oil pump casing
Directly it is connected with the box sealing of electromotor, the inner chamber of the oil pump casing surrounds the machine oil jointly with the casing of electromotor
Pump oil suction chamber and the lubricating oil pump go out oil pocket.
3. according to claim 1 can pressure release type engine oil pump, it is characterised in that：The oil pump casing is provided with
The relief valve installation cavity of relief valve is accommodated, the relief valve installation cavity is located at lubricating oil pump oil suction chamber top, and the lubricating oil pump is fuel-displaced
Chamber is located at lubricating oil pump oil suction chamber lower section.
4. according to claim 3 can pressure release type engine oil pump, it is characterised in that：The relief valve installation cavity by with
The inner chamber of the valve body that the oil pump casing is wholely set is formed, the relief valve include plunger and bullet peak at valve body inner top and
Spring between plunger, the plunger stretches in the relief hole to realize making in oil pressure through lubricating oil pump oil suction chamber from top to bottom
The relief hole is opened and closed with lower up and down motion.
5. according to claim 4 can pressure release type engine oil pump, it is characterised in that：The relief valve installation cavity and institute
State relief hole to be coaxially disposed.
6. according to claim 5 can pressure release type engine oil pump, it is characterised in that：The plunger with lubricating oil pump
The vertical side of shaft axis sets up.
7. according to claim 6 can pressure release type engine oil pump, it is characterised in that：The relief valve is installed intracavity and is set
Valve seat is equipped with, 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 |
|---|---|---|---|
| CN201611126850.1A CN106640259A (en) | 2016-12-09 | 2016-12-09 | Pressure-relief engine oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611126850.1A CN106640259A (en) | 2016-12-09 | 2016-12-09 | Pressure-relief engine oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106640259A true CN106640259A (en) | 2017-05-10 |
Family
ID=58824010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611126850.1A Pending CN106640259A (en) | 2016-12-09 | 2016-12-09 | Pressure-relief engine oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106640259A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206996A (en) * | 2019-07-05 | 2019-09-06 | 湖南机油泵股份有限公司 | A kind of lubricating oil pump pressure regulator valve |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202325736U (en) * | 2011-12-01 | 2012-07-11 | 中国重汽集团济南动力有限公司 | Oil pump structure of diesel engine |
| CN202327606U (en) * | 2011-11-15 | 2012-07-11 | 奇瑞汽车股份有限公司 | Automotive engine oil pump |
| CN206233967U (en) * | 2016-12-09 | 2017-06-09 | 重庆小康工业集团股份有限公司 | Engine oil pump with decompression function |
-
2016
- 2016-12-09 CN CN201611126850.1A patent/CN106640259A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202327606U (en) * | 2011-11-15 | 2012-07-11 | 奇瑞汽车股份有限公司 | Automotive engine oil pump |
| CN202325736U (en) * | 2011-12-01 | 2012-07-11 | 中国重汽集团济南动力有限公司 | Oil pump structure of diesel engine |
| CN206233967U (en) * | 2016-12-09 | 2017-06-09 | 重庆小康工业集团股份有限公司 | Engine oil pump with decompression function |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206996A (en) * | 2019-07-05 | 2019-09-06 | 湖南机油泵股份有限公司 | A kind of lubricating oil pump pressure regulator valve |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170510 |
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| RJ01 | Rejection of invention patent application after publication |