CN110566796A - Oil pump, engine lubrication system and automobile - Google Patents
Oil pump, engine lubrication system and automobile Download PDFInfo
- Publication number
- CN110566796A CN110566796A CN201910825593.8A CN201910825593A CN110566796A CN 110566796 A CN110566796 A CN 110566796A CN 201910825593 A CN201910825593 A CN 201910825593A CN 110566796 A CN110566796 A CN 110566796A
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- Prior art keywords
- pump
- volume
- chamber
- pressure oil
- oil
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Classifications
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- 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
- F16N13/20—Rotary pumps
-
- 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
- F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
- F16N7/38—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with a separate pump; Central lubrication systems
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The invention discloses an oil pump, an engine lubrication system and an automobile, wherein the oil pump comprises a pump shell, an outer rotor and an inner rotor, a low-pressure oil cavity and a high-pressure oil cavity are formed in the pump shell, the outer rotor is arranged in the pump shell, the inner rotor is rotatably sleeved in the outer rotor, a plurality of volume cavities are formed between the inner rotor and the outer rotor, the plurality of volume cavities comprise a first volume cavity with the largest volume, a pressurization transition region is formed between the low-pressure oil cavity and the high-pressure oil cavity along the circumferential direction of the pump shell correspondingly, the first volume cavity is correspondingly formed in the pressurization transition region, the low-pressure oil cavity is provided with an adapting end facing the pressurization transition region, the appearance of the adapting end is adapted to the first volume cavity, so that the first volume cavity and the low-pressure oil cavity are separated and separated instantaneously in the rotating process of the inner rotor, and the cavitation risk is reduced, so that the NVH performance of the oil pump is improved.
Description
Technical Field
The invention relates to the technical field of automobile parts, in particular to an oil pump, an engine lubricating system and an automobile.
Background
The oil pump is an important structure for ensuring the circulation flow of lubricating oil in a lubricating system, and can deliver enough lubricating oil to a lubricating part at any rotating speed of an engine with enough high pressure. The rotor type oil pump mainly comprises an inner rotor, an outer rotor, a pump body, a pump cover and a pressure limiting valve. The rotor type oil pump has the characteristics of compact structure, small overall dimension, light weight, large oil absorption vacuum degree and wide application.
In the prior art, the distance between a low-pressure area and a high-pressure area of an oil pump is large, when a volume cavity between an inner rotor and an outer rotor is converted from the low-pressure area to the high-pressure area, the pressure of the rotor area is firstly changed to be lowest and then is changed to be largest instantaneously, a closed dead space is formed in the rotation process when the pressure is changed to be lower, the closed dead space is continuously increased along with the rotation, but no oil is supplied, the pressure of the space is reduced to be lowest and even cavitation phenomenon can occur, then the rotor is rotated for a certain angle again to extrude the closed dead space, the pressure is instantly increased to be largest, the severe pressure change of the closed dead space can cause the area to generate impact, pressure pulsation noise can be generated, and the NVH performance of the oil pump is not facilitated, and therefore, the structure of the existing.
Disclosure of Invention
The invention mainly aims to provide an oil pump, an engine lubricating system and an automobile, aiming at optimizing the structure of the oil pump and improving the NVH performance of the oil pump.
in order to achieve the above object, the present invention provides an oil pump, including:
A pump housing having a low pressure oil chamber and a high pressure oil chamber formed therein;
the outer rotor is arranged in the pump shell; and the number of the first and second groups,
The inner rotor is rotatably sleeved in the outer rotor, a plurality of volume cavities are formed between the inner rotor and the outer rotor, and the volume cavities comprise first volume cavities with the largest volume;
Wherein, follow the circumference of pump casing upwards corresponds be formed with the pressure boost transition interval between low pressure oil pocket and the high pressure oil pocket, first volume chamber correspond form in the pressure boost transition interval, the low pressure oil pocket has the orientation the adaptation end between pressure boost transition interval, the appearance of adaptation end with first volume chamber looks adaptation, so that the inner rotor is at the rotation in-process, first volume chamber with low pressure oil pocket separation wall in the twinkling of an eye.
Optionally, in a radial direction of the pump housing, the maximum width value of the first volume cavity is L;
the diameter of the root circle of the inner rotor is D1the diameter of the addendum circle of the outer rotor is D2Wherein L ═ D (D)2-D1)/2。
Optionally, the adaptive end includes an adaptive cavity body and two adaptive cavity arms extending from the adaptive cavity body toward the supercharging transition region, the two adaptive cavity arms are arranged at intervals in an inward and outward direction, and the adaptive cavity body and the two adaptive cavity arms are both instantaneously and synchronously separated from the first volume cavity to adapt to the first volume cavity; and/or the presence of a gas in the gas,
The high-pressure oil chamber extends to the pressurization transition section to form a first unloading groove, so that the first volume chamber is communicated with the first unloading groove while the first volume chamber is separated from the low-pressure oil chamber instantly.
Optionally, the plurality of volume chambers includes a second volume chamber with a smallest volume;
A pressure reducing transition section is formed between the low-pressure oil chamber and the high-pressure oil chamber along the circumferential direction of the pump housing, and the second volume chamber is formed in the pressure reducing transition section;
and a second unloading groove extends towards the decompression transition section of the high-pressure oil cavity and is used for communicating the second volume cavity.
Optionally, the pump housing includes a pump body and a pump cover covering the pump body, and the first unloading groove is formed in the pump cover; and/or the presence of a gas in the gas,
the pump shell comprises a pump body and a pump cover arranged on the pump body in a covering mode, and the second unloading groove is formed in the pump cover.
Optionally, the pump housing includes a pump body and a pump cover covering the pump body, and the two first unloading slots are formed on the pump body and the pump cover respectively; and/or the presence of a gas in the gas,
The pump shell comprises a pump body and a pump cover arranged on the pump body, and the two second unloading grooves are formed in the pump body and the pump cover respectively.
Optionally, the depth of the first unloading groove is H1, the width of the first unloading groove is L1, and 0.5 ≦ H1/L1 ≦ 0.6; and/or the presence of a gas in the gas,
The depth of the second unloading groove is H2, the width of the second unloading groove is L2, and H2/L2 is more than or equal to 0.5 and less than or equal to 0.6.
Optionally, H1/L1 is 0.57, and/or H2/L2 is 0.57.
the invention also provides an engine lubrication system, which comprises an oil pump, wherein the oil pump comprises:
a pump housing having a low pressure oil chamber and a high pressure oil chamber formed therein;
the outer rotor is arranged in the pump shell; and the number of the first and second groups,
the inner rotor is rotatably sleeved in the outer rotor, a plurality of volume cavities are formed between the inner rotor and the outer rotor, and the volume cavities comprise first volume cavities with the largest volume;
wherein, follow the circumference of pump casing upwards corresponds be formed with the pressure boost transition interval between low pressure oil pocket and the high pressure oil pocket, first volume chamber correspond form in the pressure boost transition interval, the low pressure oil pocket has the orientation the adaptation end between pressure boost transition interval, the appearance of adaptation end with first volume chamber looks adaptation, so that the inner rotor is at the rotation in-process, first volume chamber with low pressure oil pocket separation wall in the twinkling of an eye.
the invention also provides an automobile comprising an engine lubrication system, the engine lubrication system comprising an oil pump, the oil pump comprising:
A pump housing having a low pressure oil chamber and a high pressure oil chamber formed therein;
The outer rotor is arranged in the pump shell; and the number of the first and second groups,
The inner rotor is rotatably sleeved in the outer rotor, a plurality of volume cavities are formed between the inner rotor and the outer rotor, and the volume cavities comprise first volume cavities with the largest volume;
wherein, follow the circumference of pump casing upwards corresponds be formed with the pressure boost transition interval between low pressure oil pocket and the high pressure oil pocket, first volume chamber correspond form in the pressure boost transition interval, the low pressure oil pocket has the orientation the adaptation end between pressure boost transition interval, the appearance of adaptation end with first volume chamber looks adaptation, so that the inner rotor is at the rotation in-process, first volume chamber with low pressure oil pocket separation wall in the twinkling of an eye.
in the technical scheme provided by the invention, a first volume cavity with the largest volume is formed between the inner rotor and the outer rotor, the first volume cavity is correspondingly formed in the supercharging transition region, the shape of the adapting end of the low-pressure oil cavity is adapted to the first volume cavity, and the first volume cavity and the low-pressure oil cavity are separated and separated instantly when the first volume cavity is formed in the rotation process of the inner rotor, so that the cavitation risk is reduced, and the NVH performance of the oil pump is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic top view of an oil pump according to an embodiment of the present invention;
FIG. 2 is an enlarged schematic view of detail A of FIG. 1;
FIG. 3 is a schematic perspective view of the oil pump of FIG. 1;
Fig. 4 is an enlarged schematic view of a portion B in fig. 3.
the reference numbers illustrate:
| Reference numerals | name (R) | Reference numerals | name (R) |
| 100 | Oil pump | 42 | second volume chamber |
| 11 | Pump body | 51 | Adaptive cavity body |
| 12 | Pump cover | 52 | adaptive cavity arm |
| 13 | low-pressure oil cavity | 61 | first unloading groove |
| 14 | High-pressure oil cavity | 62 | Second relief groove |
| 2 | External rotor | 71 | Oil outlet pipe |
| 3 | Inner rotor | 72 | Oil inlet pipe |
| 41 | First volume chamber |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
it should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
In the prior art, the distance between a low-pressure area and a high-pressure area of an oil pump is large, when a volume cavity between an inner rotor and an outer rotor is converted from the low-pressure area to the high-pressure area, the pressure of the rotor area is firstly changed to be lowest and then is changed to be largest instantaneously, a closed dead space is formed in the rotation process when the pressure is changed to be lower, the closed dead space is continuously increased along with the rotation, but no oil is supplied, the pressure of the space is reduced to be lowest and even cavitation phenomenon can occur, then the rotor is rotated for a certain angle again to extrude the closed dead space, the pressure is instantly increased to be largest, the severe pressure change of the closed dead space can cause the area to generate impact, pressure pulsation noise can be generated, and the NVH performance of the oil pump is not facilitated, and therefore, the structure of the existing.
The invention provides an automobile, which comprises an engine lubricating system, wherein the engine lubricating system comprises an oil pump, and the engine lubricating system and the automobile provided with the oil pump belong to the content of the invention, wherein fig. 1 to 4 are schematic diagrams of embodiments of the oil pump provided by the invention.
Referring to fig. 1 and 2, the oil pump 100 includes a pump housing, an outer rotor 2 and an inner rotor 3, a low-pressure oil chamber 13 and a high-pressure oil chamber 14 are formed in the pump housing, the outer rotor 2 is provided in the pump housing, the inner rotor 3 is rotatably sleeved in the outer rotor 2, a plurality of volume cavities are formed between the inner rotor 3 and the outer rotor 2, the plurality of volume cavities comprise a first volume cavity 41 with the largest volume, wherein a pressure-increasing transition section is formed between the low-pressure oil chamber 13 and the high-pressure oil chamber 14 in correspondence with the circumferential direction of the pump housing, the first volume cavity 41 is correspondingly formed in the pressurizing transition area, the low-pressure oil cavity 13 is provided with an adapting end facing the pressurizing transition area, the shape of the adapting end is adapted to the shape of the first volume cavity 41, so that the first volume chamber 41 is separated and blocked from the low-pressure oil chamber 13 instantaneously during the rotation of the inner rotor 3.
in the technical scheme provided by the invention, a first volume cavity 41 with the largest volume is formed between the inner rotor 3 and the outer rotor 2, the first volume cavity 41 is correspondingly formed in the supercharging transition region, the shape of the adapting end of the low-pressure oil cavity 13 is adapted to the first volume cavity 41, and the first volume cavity 41 and the low-pressure oil cavity 13 are separated and separated instantly when the first volume cavity 41 is formed in the rotation process of the inner rotor 3, so that the cavitation risk is reduced, and the NVH performance of the oil pump 100 is improved.
The first volume cavity 41 is a cavity with the largest volume in the supercharging transition region, in an embodiment of the present invention, along a radial direction of the pump housing, a maximum width value of the first volume cavity 41 is L, and a root circle diameter of the inner rotor 3 is D1the diameter of the addendum circle of the outer rotor 2 is D2Wherein L ═ D (D)2-D1) And/2, when the distance L reaches the maximum moment, the volume of the first volume chamber 41 is maximum, and the first volume chamber 41 is just between the high-pressure oil chamber 14 and the low-pressure oil chamber 13 at the moment, so that the arrangement is thatthe efficiency of the oil pump 100 is maximized.
it should be noted that, the pump housing includes a pump body 11 and a pump cover 12 covering the pump body 11, an accommodation is formed between the pump body 11 and the pump cover 12 to accommodate the inner rotor 3 and the outer rotor 2.
The shape of the adapting end is adapted to the first volume chamber 41, and it should be noted that the shape of the adapting end can be completely in line contact with the first volume chamber 41 when being separated from the first volume chamber 41, or can be separated instantaneously by partial line contact, specifically, please refer to fig. 1 and fig. 2, the adapting end includes an adapting chamber body 51 and two adapting chamber arms 52 extending from the adapting chamber body 51 toward the supercharging transition region, the two adapting chamber arms 52 are arranged at intervals in the inner and outer directions, the adapting chamber body 51 and the two adapting chamber arms 52 are both separated instantaneously and synchronously from the first volume chamber 41 for adapting, the first volume chamber 41 can be separated and isolated instantaneously from the low-pressure oil chamber 13 while the first volume chamber 41 is formed by the adapting chamber body 51 and the two adapting chamber arms 52, thereby reducing the difficulty of processing and assembling completely adapted parts, is convenient to manufacture and has better effect.
In addition, in consideration of the stable transition from the first volume chamber 41 to the high-pressure oil chamber 14, in an embodiment of the present invention, referring to fig. 3 and 4, a first unloading groove 61 extends from the high-pressure oil chamber 14 toward the pressurization transition section, so that the first volume chamber 41 is separated from the low-pressure oil chamber 13 instantaneously, and the first volume chamber 41 is communicated with the first unloading groove 61, and through the slow pressurization effect of the unloading groove, the engine oil pressure in the first volume chamber 41 has continuity, the risk of instantaneous increase and sudden change is reduced, and the NVH performance of the engine oil pump 100 is improved.
Further, in consideration of stability in transition from the high-pressure oil chamber 14 to the low-pressure oil chamber 13, in the embodiment of the present invention, the plurality of volume chambers includes the second volume chamber 42 having the smallest volume, a pressure reduction transition section is formed between the low-pressure oil chamber 13 and the high-pressure oil chamber 14 in the circumferential direction of the pump housing, the second volume chamber 42 is formed in the pressure reduction transition section, and the high-pressure oil chamber 14 extends toward the pressure reduction transition section to form the second relief groove 62 for communicating with the second volume chamber 42, so that the oil pressure in the second volume chamber 42 has continuity, the risk of transient reduction and abrupt change is reduced, and the NVH performance of the oil pump 100 is improved.
In this embodiment, the position where the first relief groove 61 and the second relief groove 62 are formed is not limited, and for example, the first relief groove 61 may be formed in the pump cover 12 and/or the second relief groove 62 may be formed in the pump body 11 or the pump cover 12 in consideration of the machining condition, and the first relief groove 61 and/or the second relief groove 62 may be formed in the pump cover 12, so that the pump body 11 may be complicated by avoiding the machining of the first relief groove 61 and/or the second relief groove 62 in the pump body 11, the pump cover 12 may be simply formed, the machining and the manufacturing may be simple, and only the first relief groove 61 may be provided or only the second relief groove 62 may be provided, and of course, when the first relief groove 61 and the second relief groove 62 are provided at the same time, the effect is better.
In consideration of increasing the unloading flow area, in the embodiment of the present invention, two first unloading grooves 61 are provided and are respectively formed on the pump body 11 and the pump cover 12, and/or two second unloading grooves 62 are provided and are respectively formed on the pump body 11 and the pump cover 12, only two first unloading grooves 61 may be provided, or only two second unloading grooves 62 may be provided, and of course, the two first unloading grooves 61 and the two second unloading grooves 62 are provided at the same time, so that the unloading area is increased, the transition between high pressure and low pressure is stable, and the NVH performance of the oil pump 100 is improved.
In view of the fact that the viscosity of the oil is high, and particularly under low-temperature conditions, the height of the pressure relief groove cannot be too small, the oil flow is not smooth due to the too small height, and the pressure relief groove cannot perform the pressure relief function, so the ratio of the height to the width of the pressure relief groove is reasonable, in the embodiment of the present invention, the depth of the first relief groove 61 is H1, the width of the first relief groove 61 is L1, and 0.5 ≦ H1/L1 ≦ 0.6, and/or the depth of the second relief groove 62 is H2, the width of the second relief groove 62 is L2, and 0.5 ≦ H2/L2 ≦ 0.6, in which the first relief groove 61 and/or the second relief groove 62 perform the good relief function, and have the good effect, and in addition, the preferred values are H1/L1 ≦ 0.57, and/or H2/L2, and the ratio of the first relief groove 61 to the second relief groove 62 may be set as the depth-to the value of the depth-to be equal to or more than the second relief groove 61, and the ratio may be set as the value of the range of the depth-to be equal And may be selected at the same time with an alternative rotation.
In addition, the oil pump 100 further includes an oil inlet pipe 72 communicating with the low-pressure oil chamber 13 and an oil outlet pipe 71 communicating with the high-pressure oil chamber 14, and oil is pumped from the oil inlet pipe 72 and compressed by the rotation of the inner rotor 3 and the outer rotor 2, and then discharged from the oil outlet pipe 71.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. An oil pump, comprising:
A pump housing having a low pressure oil chamber and a high pressure oil chamber formed therein;
The outer rotor is arranged in the pump shell; and the number of the first and second groups,
The inner rotor is rotatably sleeved in the outer rotor, a plurality of volume cavities are formed between the inner rotor and the outer rotor, and the volume cavities comprise first volume cavities with the largest volume;
wherein, follow the circumference of pump casing upwards corresponds be formed with the pressure boost transition interval between low pressure oil pocket and the high pressure oil pocket, first volume chamber correspond form in the pressure boost transition interval, the low pressure oil pocket has the orientation the adaptation end between pressure boost transition interval, the appearance of adaptation end with first volume chamber looks adaptation, so that the inner rotor is at the rotation in-process, first volume chamber with low pressure oil pocket separation wall in the twinkling of an eye.
2. The oil pump of claim 1, wherein the first volume chamber has a maximum width value L in a radial direction of the pump housing;
The diameter of the root circle of the inner rotor is D1The diameter of the addendum circle of the outer rotor is D2wherein L ═ D (D)2-D1)/2。
3. The oil pump of claim 1, wherein the adapter end includes an adapter chamber body and two adapter chamber arms extending from the adapter chamber body toward the supercharging transition region, the two adapter chamber arms being spaced apart inwardly and outwardly, the adapter chamber body and the two adapter chamber arms each being instantaneously and synchronously separated from the first volume chamber for adaptation; and/or the presence of a gas in the gas,
The high-pressure oil chamber extends to the pressurization transition section to form a first unloading groove, so that the first volume chamber is communicated with the first unloading groove while the first volume chamber is separated from the low-pressure oil chamber instantly.
4. The oil pump of claim 3, wherein the plurality of volume chambers includes a second volume chamber having a smallest volume;
A pressure reducing transition section is formed between the low-pressure oil chamber and the high-pressure oil chamber along the circumferential direction of the pump housing, and the second volume chamber is formed in the pressure reducing transition section;
And a second unloading groove extends towards the decompression transition section of the high-pressure oil cavity and is used for communicating the second volume cavity.
5. the oil pump of claim 4, wherein the pump housing includes a pump body and a pump cover that covers the pump body, the first relief groove being formed in the pump cover; and/or the presence of a gas in the gas,
The pump shell comprises a pump body and a pump cover arranged on the pump body in a covering mode, and the second unloading groove is formed in the pump cover.
6. The oil pump of claim 4, wherein the pump housing includes a pump body and a pump cover covering the pump body, and the first relief grooves are provided in two and formed on the pump body and the pump cover, respectively; and/or the presence of a gas in the gas,
The pump shell comprises a pump body and a pump cover arranged on the pump body, and the two second unloading grooves are formed in the pump body and the pump cover respectively.
7. The oil pump of claim 4, wherein the depth of the first relief groove is H1, the width of the first relief groove is L1, and 0.5 ≤ H1/L1 ≤ 0.6; and/or the presence of a gas in the gas,
The depth of the second unloading groove is H2, the width of the second unloading groove is L2, and H2/L2 is more than or equal to 0.5 and less than or equal to 0.6.
8. The oil pump of claim 7, wherein H1/L1 is 0.57, and/or H2/L2 is 0.57.
9. An engine lubrication system, characterized by comprising an oil pump according to any one of claims 1 to 8.
10. A vehicle comprising the engine lubrication system of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910825593.8A CN110566796A (en) | 2019-08-30 | 2019-08-30 | Oil pump, engine lubrication system and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910825593.8A CN110566796A (en) | 2019-08-30 | 2019-08-30 | Oil pump, engine lubrication system and automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110566796A true CN110566796A (en) | 2019-12-13 |
Family
ID=68777332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910825593.8A Pending CN110566796A (en) | 2019-08-30 | 2019-08-30 | Oil pump, engine lubrication system and automobile |
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| Country | Link |
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| CN (1) | CN110566796A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201723266U (en) * | 2010-06-18 | 2011-01-26 | 上海幸福摩托车有限公司 | Oil pump for automobile engine |
| CN104964151A (en) * | 2015-07-03 | 2015-10-07 | 南京高德机械有限公司 | Diesel engine oil pump |
| CN105275531A (en) * | 2014-07-01 | 2016-01-27 | 现代自动车株式会社 | Oil pump for engine |
| CN206054026U (en) * | 2016-06-16 | 2017-03-29 | 沈阳英地汽车泵业制造有限公司 | A kind of automobile engine oil pump |
| CN207230133U (en) * | 2017-09-22 | 2018-04-13 | 湖南机油泵股份有限公司 | A kind of rotor-type oil pump for reducing noise |
| CN109469609A (en) * | 2018-11-08 | 2019-03-15 | 奇瑞汽车股份有限公司 | Lubricating oil pump and engine lubrication system |
| CN209213430U (en) * | 2018-11-23 | 2019-08-06 | 安徽江淮汽车集团股份有限公司 | Lubricating oil pump |
-
2019
- 2019-08-30 CN CN201910825593.8A patent/CN110566796A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201723266U (en) * | 2010-06-18 | 2011-01-26 | 上海幸福摩托车有限公司 | Oil pump for automobile engine |
| CN105275531A (en) * | 2014-07-01 | 2016-01-27 | 现代自动车株式会社 | Oil pump for engine |
| CN104964151A (en) * | 2015-07-03 | 2015-10-07 | 南京高德机械有限公司 | Diesel engine oil pump |
| CN206054026U (en) * | 2016-06-16 | 2017-03-29 | 沈阳英地汽车泵业制造有限公司 | A kind of automobile engine oil pump |
| CN207230133U (en) * | 2017-09-22 | 2018-04-13 | 湖南机油泵股份有限公司 | A kind of rotor-type oil pump for reducing noise |
| CN109469609A (en) * | 2018-11-08 | 2019-03-15 | 奇瑞汽车股份有限公司 | Lubricating oil pump and engine lubrication system |
| CN209213430U (en) * | 2018-11-23 | 2019-08-06 | 安徽江淮汽车集团股份有限公司 | Lubricating oil pump |
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