CN104728585B - High-efficiency variable-displacement oil pump reducing periodical loads of liquid - Google Patents
High-efficiency variable-displacement oil pump reducing periodical loads of liquid Download PDFInfo
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- CN104728585B CN104728585B CN201410756340.7A CN201410756340A CN104728585B CN 104728585 B CN104728585 B CN 104728585B CN 201410756340 A CN201410756340 A CN 201410756340A CN 104728585 B CN104728585 B CN 104728585B
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Abstract
The invention relates to the field of engines. A high-efficiency variable-displacement oil pump reducing periodical loads of liquid comprises a rotor type oil pump body which comprises an oil squeeze-out end, an oil suction end and an oil cavity, wherein an inner rotor is arranged in the oil cavity and provided with a groove, and a pendulum is inserted in the groove; the rotor type oil pump body further comprises an outer rotor, and the tail end of the pendulum is hinged to the outer rotor; the minimum distance from the oil inlet of the oil squeeze-out end to the inner wall of the inner rotor is not larger than the distance from the groove bottom of the groove to the inner wall of the inner rotor, and the maximum distance from the oil inlet of the oil squeeze-out end to the inner wall of the inner rotor is not smaller than the distance from the groove opening of the groove to the inner wall of the inner rotor. A minimum containing cavity covering the inner rotor of the oil pump and the pendulum is formed, and therefore after oil is compressed to form high pressure in the oil pump, the oil can smoothly flow into all parts in the engine, and pressure loss of the portion can be reduced.
Description
Technical field
The present invention relates to engine art, and in particular to lubricating oil pump.
Background technology
The Main Function of lubricating oil pump is to ensure machine oil in lubricating system internal circulation flow, and under any rotating speed of electromotor all
The machine oil that enough flows can be conveyed to lubricant housings with sufficiently high pressure；Lubricating oil pump can be divided mainly into gear type by version
With two kinds of rotator type.
It is a cavity for closing based on the pump oil principle of lubricating oil pump, pendulum and internal rotor are formed in pump " content cavity "；
During rotor is rotated, volume is constantly changing, and its pressure value can increase with the continuous reduction of volume, right
The overall structure in lubricating oil pump inside has strong impacting with high pressure, often when this " content cavity " volume is reduced to minimum,
Pressure reaches maximum, and because the structure steel material intensity of pendulum in such lubricating oil pump is higher than the intensity of inner and outer Rotator, it is past
Toward machine oil pump part is had cause fracture due to bearing the incessantly immense pressure of internal local, so that product failure shows
As occurring.
The content of the invention
It is an object of the invention to provide the high efficiency for reducing liquid cyclic loading becomes displacement oil pump.
Technical problem solved by the invention can employ the following technical solutions to realize：
The high efficiency for reducing liquid cyclic loading becomes displacement oil pump, including rotor-type oil pump main body, the rotator type
Lubricating oil pump main body includes that a machine oil extrudes end, a machine oil suction side, and the machine oil is extruded and set between end and the machine oil suction side
There is a machine oil chamber, it is characterised in that the machine oil intracavity is provided with an internal rotor, is provided with towards the recessed of outside on the internal rotor
Groove, is inserted with pendulum in the groove, the pendulum can slide along the groove, and the pendulum constitutes one first and closes with the groove
Chamber is closed, as content cavity；
The rotor-type oil pump main body also includes being located at the outer rotor on the outside of the internal rotor, the end hinge of the pendulum
It is connected on the outer rotor, the pendulum surrounds one second closed chamber with the internal rotor, the outer rotor, used as outer cavity volume；
The machine oil extrudes the groove that the oil-in at end is not more than the groove apart from the minimum range of the internal rotor inwall
Bottom to the internal rotor inwall distance, the machine oil extrude the oil-in at end apart from the internal rotor inwall ultimate range not
Less than the groove notch to the internal rotor inwall distance.To cover the minimum that internal rotor of lubricating pump and pendulum are formed
" content cavity " so that machine oil in lubricating oil pump internal compression into after high pressure, can smoothly flow into various engine components, so as to
The pressure loss of this part can be reduced.
The machine oil extrudes groove width of the minimum range between end and the machine oil suction side not less than the groove.So
Both can guarantee that reaching minima, i.e. internal pressure in " content cavity " reached the maximum moment, its with extrude end communicate, can smoothly by
Hydraulic oil is forced into outlet, can reduce lubricating oil pump internal high pressure load, it is to avoid local pressure is too high to produce high load capacity to part
And cause the phenomenon of oil pump damage；Can guarantee that again extrude end cover " content cavity " when, just not with the suction of lubricating oil pump
End connection, it is to avoid this " short circuit " situation.
The minimum range that the machine oil is extruded between end and the machine oil suction side is not less than 5mm.With with most of machine oil
Pump is adapted.
It is provided with six grooves on the internal rotor at equal intervals, a pendulum is equipped with each groove,
The groove width of the groove is preferably 5mm.
The outer wall of the internal rotor is provided with six pits, be provided between two adjacent grooves one it is described recessed
Hole, the accessory channel Single port connects the bottom of the groove, and another port connects the bottom of the pit.To avoid machine oil
Chamber oil duct is blocked.
On the outer rotor it is relative with the pit where, be provided with outer pit.To realize oil pressure in buffer oil pocket
Buffering.
The main advantage of invention：
1. the operation principle based on such lubricating oil pump, during machine oil is inhaled in pump, with inner and outer Rotator in pump and
The continuous rotation of pendulum, " outer cavity volume " volume that " content cavity " is formed with pendulum with outer rotor and internal rotor constantly increases, pressure
Reduce so that machine oil can be smoothly sucked in lubricating oil pump；During machine oil is forced out, " content cavity " and " outer cavity volume " volume
Constantly reduce, pressure increase so that machine oil can smoothly be forced into electromotor each lubricating component；Due to " content cavity " volume
To be far smaller than " outer cavity volume " volume, when " content cavity " is compressed to minimum, pressure reaches the maximum inside lubricating oil pump
Value；The unique lubricating oil pump of present invention design is extruded to correct and can cover " content cavity " that volume reaches minimal instant, now
The maximum machine oil of the pressure of intracavity can be pumped out to extrusion mouth along end is extruded, equivalent to partial pressure is discharged, in " content cavity "
Local pressure in middle part will not be very big, it is to avoid impact of the machine oil of larger pressure to part is excessive and produce showing for rupture
As；
2. the extrusion end indoor design of the lubricating oil pump is simple, reduces technique, and cost is reduced to a certain extent；
3. the extrusion end end indoor design of the lubricating oil pump is simple, can reduce the pressure loss herein, substantially increases machine
The pump oil efficiency of oil pump；
4. the invention is practical suitable for the lubricating oil pump of this type, widely applicable.
Description of the drawings
Fig. 1 is part-structure schematic diagram of the present invention；
Fig. 2 is the schematic enlarged-scale view at machine oil chamber of the present invention.
Specific embodiment
In order that technological means, creation characteristic, reached purpose and effect that the present invention is realized are easy to understand, tie below
Conjunction is specifically illustrating and the present invention is expanded on further.
See figures.1.and.2, the high efficiency for reducing liquid cyclic loading becomes displacement oil pump, including rotor-type oil pump master
Body, rotor-type oil pump main body includes that a machine oil extrudes end 1, a machine oil suction side 2, machine oil extrude end 1 and machine oil suction side 2 it
Between be provided with a machine oil chamber, machine oil intracavity is provided with an internal rotor 4, the groove towards outside is provided with internal rotor 4, and clock is inserted with groove
Pendulum 5, pendulum 5 can slide along groove, and pendulum 5 constitutes one first closed chamber with groove, used as content cavity；Rotor-type oil pump main body
Also include being located at the outer rotor 3 in the outside of internal rotor 4, the end of pendulum 5 is hinged on outer rotor 3, pendulum 5 turns with internal rotor 4, outward
Son 3 surrounds one second closed chamber, used as outer cavity volume；Machine oil extrude end 1 oil-in apart from the inwall of internal rotor 4 minimum range not
More than groove bottom land to the inwall of internal rotor 4 distance, machine oil extrude end 1 oil-in apart from the inwall of internal rotor 4 maximum away from
From the notch not less than groove to a distance from the inwall of internal rotor 4.To cover the minimum that internal rotor of lubricating pump 4 and pendulum 5 are formed
" content cavity " so that machine oil in lubricating oil pump internal compression into after high pressure, can smoothly flow into various engine components, so as to
The pressure loss of this part can be reduced.
Machine oil extrudes groove width of minimum range D between end 1 and machine oil suction side 2 not less than groove.So both can guarantee that
Minima, i.e. internal pressure being reached in " content cavity " and reaching the maximum moment, it is communicated with end is extruded, can smoothly by high pressure oil pressure
Go out to outlet, lubricating oil pump internal high pressure load can be reduced, it is to avoid local pressure is too high to be produced high load capacity and cause oil to part
The phenomenon that pump is damaged；Can guarantee that again when extruding end and covering " content cavity ", just do not connect with the suction side of lubricating oil pump, keep away
This " short circuit " situation is exempted from.
As a kind of preferred version machine oil the oil-in at end 1 is extruded preferably into the oil-in of fan shape, the outside of fan shape
Edge be located circular arc radius less than groove notch to the outer peripheral distance of internal rotor 4 and more than groove bottom land to internal rotor
4 outer peripheral distances；The radius of the circular arc that the inward flange of fan shape is located is less than or equal to the bottom land of groove to the outside of internal rotor 4
The distance of edge；The center of circle of the circle that the center of circle of the circle that the inward flange of fan shape is located is located with the inward flange of internal rotor 4 overlaps.To obtain
Preferable coverage effect is obtained, and reduces the energy consumption of lubricating oil pump.
Machine oil extrudes the oil-feed mouth down at end 1.To facilitate machine oil to be pressed into.It is preferred that machine oil extrudes the oil-in at end 1 in the diagonal
The center of rotor 4.To be adapted with the centrifugal force in lubricating oil pump rotation process, lower the resistance that machine oil is entered.Angle of inclination is excellent
Select 10 degree to 80 degree, further preferred 60 degree.Under the number of degrees, resistance is minimum.
The minimum range that machine oil is extruded between end 1 and machine oil suction side 2 is not less than 5mm.Mutually to fit with most of lubricating oil pump
Should.It is provided with six grooves on internal rotor 4 at equal intervals, a pendulum 5 is equipped with each groove, the groove width of groove is preferably 5mm.
The outer wall of internal rotor 4 is provided with six pits, and between two adjacent grooves a pit is provided with, to avoid machine oil chamber oil duct quilt
Blocking.On outer rotor 3 it is relative with pit where, be provided with outer pit.To realize the buffering of oil pressure in buffer oil pocket.
Machine oil extrudes and an oil spilling passage can also be provided with end 1, and the Single port connection oil-in of oil spilling passage, Single port is opened
On the lateral wall that machine oil extrudes end 1.In the use that oil pressure is larger, pressure can be rushed down by oil spilling mouth.It is preferred that oil spilling passage is one curved
Bent oil spilling passage, two ports of oil spilling passage are down.To ensure the pressure in oil-in.Oil spilling mouth on lateral wall
With outer cavity volume UNICOM, the oil of spilling can be made downstream to outer cavity volume.
The main advantage of invention：
1. the operation principle of such lubricating oil pump is based on, during machine oil is inhaled in pump, with inner and outer Rotator 3 in pump
And the continuous rotation of pendulum 5, " content cavity " constantly increases with pendulum 5 with " outer cavity volume " volume of outer rotor 3 and the formation of internal rotor 4
Greatly, pressure reduces so that machine oil can be smoothly sucked in lubricating oil pump；During machine oil is forced out, " content cavity " with " hold outward
Chamber " volume constantly reduces, pressure increase so that machine oil can smoothly be forced into electromotor each lubricating component；Due to " content
Chamber " volume will be far smaller than " outer cavity volume " volume, and when " content cavity " is compressed to minimum, pressure is reached inside lubricating oil pump
Maximum；The unique lubricating oil pump of present invention design is extruded to correct and can cover " the content that volume reaches minimal instant
Chamber ", now the maximum machine oil of the pressure of intracavity can be pumped out to extrusion mouth along end is extruded, equivalent to dischargeing partial pressure,
Local pressure in " content cavity " in part will not be very big, it is to avoid impact of the machine oil of larger pressure to part is excessive and produces
The phenomenon of rupture；
2. the extrusion end indoor design of the lubricating oil pump is simple, reduces technique, and cost is reduced to a certain extent；
3. the extrusion end end indoor design of the lubricating oil pump is simple, can reduce the pressure loss herein, substantially increases machine
The pump oil efficiency of oil pump；
4. the invention is practical suitable for the lubricating oil pump of this type, widely applicable.
The ultimate principle and principal character and advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel it should be appreciated that the present invention is not restricted to the described embodiments, the simply explanation described in above-described embodiment and description this
The principle of invention, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, these changes
Change and improvement is both fallen within scope of the claimed invention.The claimed scope of the invention by appending claims and its
Equivalent thereof.
Claims (5)
1. the high efficiency for reducing liquid cyclic loading becomes displacement oil pump, including rotor-type oil pump main body, the rotator type machine
Oil pump body includes that a machine oil extrudes end, a machine oil suction side, and the machine oil is extruded and is provided between end and the machine oil suction side
One machine oil chamber, it is characterised in that the machine oil intracavity is provided with an internal rotor, and the groove towards outside is provided with the internal rotor,
Pendulum is inserted with the groove, the pendulum can slide along the groove, the pendulum constitutes one first and closes with the groove
Chamber, as content cavity；
The rotor-type oil pump main body also includes being located at the outer rotor on the outside of the internal rotor, and the end of the pendulum is hinged on
On the outer rotor, the pendulum surrounds one second closed chamber with the internal rotor, the outer rotor, used as outer cavity volume；
The machine oil extrudes the oil-in at end and arrives apart from the bottom land that the minimum range of the internal rotor inwall is not more than the groove
The distance of the internal rotor inwall, the machine oil extrudes the oil-in at end and is not less than apart from the ultimate range of the internal rotor inwall
Distance of the notch of the groove to the internal rotor inwall；
The outer wall of the internal rotor is provided with six pits, and between two adjacent grooves a pit, institute are provided with
The bottom for stating groove connects the port of an accessory channel, and the another port of accessory channel connects the bottom of the pit.
2. the high efficiency for reducing liquid cyclic loading according to claim 1 becomes displacement oil pump, it is characterised in that described
Machine oil extrudes groove width of the minimum range between end and the machine oil suction side not less than the groove.
3. the high efficiency for reducing liquid cyclic loading according to claim 2 becomes displacement oil pump, it is characterised in that described
The minimum range that machine oil is extruded between end and the machine oil suction side is not less than 5mm.
4. the high efficiency for reducing liquid cyclic loading according to claim 3 becomes displacement oil pump, it is characterised in that described
It is provided with six grooves on internal rotor at equal intervals, a pendulum, the groove of the groove is equipped with each groove
A width of 5mm.
5. the high efficiency of the reduction liquid cyclic loading according to claim 1,2,3 or 4 becomes displacement oil pump, and its feature exists
In, it is relative with the pit on the outer rotor where, be provided with outer pit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410756340.7A CN104728585B (en) | 2014-12-10 | 2014-12-10 | High-efficiency variable-displacement oil pump reducing periodical loads of liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410756340.7A CN104728585B (en) | 2014-12-10 | 2014-12-10 | High-efficiency variable-displacement oil pump reducing periodical loads of liquid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104728585A CN104728585A (en) | 2015-06-24 |
| CN104728585B true CN104728585B (en) | 2017-04-19 |
Family
ID=53452766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410756340.7A Expired - Fee Related CN104728585B (en) | 2014-12-10 | 2014-12-10 | High-efficiency variable-displacement oil pump reducing periodical loads of liquid |
Country Status (1)
| Country | Link |
|---|---|
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2907058A1 (en) * | 1978-03-13 | 1979-09-20 | Ford Werke Ag | DISPLACEMENT PUMP, IN PARTICULAR FOR SERVO DEVICES IN MOTOR VEHICLES |
| CN86203316U (en) * | 1986-05-23 | 1987-06-10 | 华中工学院 | High-pressure paddle pump |
| CN202546210U (en) * | 2012-03-09 | 2012-11-21 | 重庆小康工业集团股份有限公司 | Engine oil pump for engine of mini vehicle |
| CN103114993A (en) * | 2012-12-05 | 2013-05-22 | 浙江台州先顶液压有限公司 | Step blade type hydraulic machinery |
| CN103953542A (en) * | 2014-05-17 | 2014-07-30 | 王洪继 | Vane pump |
-
2014
- 2014-12-10 CN CN201410756340.7A patent/CN104728585B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2907058A1 (en) * | 1978-03-13 | 1979-09-20 | Ford Werke Ag | DISPLACEMENT PUMP, IN PARTICULAR FOR SERVO DEVICES IN MOTOR VEHICLES |
| CN86203316U (en) * | 1986-05-23 | 1987-06-10 | 华中工学院 | High-pressure paddle pump |
| CN202546210U (en) * | 2012-03-09 | 2012-11-21 | 重庆小康工业集团股份有限公司 | Engine oil pump for engine of mini vehicle |
| CN103114993A (en) * | 2012-12-05 | 2013-05-22 | 浙江台州先顶液压有限公司 | Step blade type hydraulic machinery |
| CN103953542A (en) * | 2014-05-17 | 2014-07-30 | 王洪继 | Vane pump |
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| Publication number | Publication date |
|---|---|
| CN104728585A (en) | 2015-06-24 |
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Granted publication date: 20170419 Termination date: 20191210 |
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| CF01 | Termination of patent right due to non-payment of annual fee |