CN101865003B - Automobile engine oil pump - Google Patents
Automobile engine oil pump Download PDFInfo
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- CN101865003B CN101865003B CN2010102000597A CN201010200059A CN101865003B CN 101865003 B CN101865003 B CN 101865003B CN 2010102000597 A CN2010102000597 A CN 2010102000597A CN 201010200059 A CN201010200059 A CN 201010200059A CN 101865003 B CN101865003 B CN 101865003B
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- Lubrication Of Internal Combustion Engines (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The invention provides an automobile engine oil pump which comprises a pump bonnet and a pump body, wherein a high-pressure oil cavity and a low-pressure oil cavity are arranged in the pump body; the pump bonnet is provided with a dual-purpose valve; the dual-purpose valve comprises a valve body; an oil return cavity, a valve cavity and a valve core are arranged in the valve body; the oil return cavity is positioned at the upper part of the valve cavity; the valve core is installed in the valve cavity and isolates the oil return cavity from the valve cavity; the valve cavity is communicated with the high-pressure oil cavity; the valve core is provided with a first end face and a second end face; the first end face is contacted with the oil return cavity and bears the downward acting force of the oil in the oil return cavity; the second end face is contacted with the valve cavity and bears the downward acting force of the oil in the valve cavity; the area of the first end face is smaller than that of the second end face; and the position on which the dual-purpose valve is arranged on the pump bonnet is provided with a pressure relief port which is communicated with a low-pressure oil cavity. The oil pump can relieve pressure at the time of cold starting of an engine and can also steadily relieve pressure when the engine normally operates, so that the arrangement space of the oil pump is small.
Description
Technical field
The present invention relates to a kind of automobile engine oil pump, belong to automotive engine lubrication systems technology field.
Background technique
At present, the valve of traditional oil pump that is used for motor car engine comprises pressure-limit valve and safety valve, the engine oil pump that a has limited valve, and what have has only safety valve, and the oil pump that has has two valves.If only overpressure during the limited valve engine cold-start is unfavorable for that destructive oil pressure might appear in the good pressure release of motor, if having only safety valve, the pressure release when influencing the proper functioning of motor again.If two valves have simultaneously, make the oil pump spatial arrangement excessive again, and the quality of whole oil pump also can increase.
Summary of the invention
The technical problem that the present invention will solve provides a kind of automobile engine oil pump, and it can make motor quick pressure releasing when cold start-up, can make motor pressure release stably when proper functioning again, makes that simultaneously the arrangement space of oil pump is little.
In order to address the above problem, the present invention provides a kind of automobile engine oil pump, comprises the pump cover and the pump housing; Be provided with high-voltage oil cavity and low pressure oil pocket in the said pump housing, said pump cover is provided with dual purpose valve, and said dual purpose valve comprises valve body; Be provided with oil back chamber, valve pocket and spool in the said valve body, said oil back chamber is positioned at said valve pocket top, and said spool is contained in the valve pocket; And with oil back chamber and valve pocket isolation; Said valve pocket is connected with said high-voltage oil cavity, and said spool is provided with first end face that contacts, bears the downward active force of machine oil in the oil back chamber with oil back chamber, and contacts, bears second end face of the downward active force of machine oil in the valve pocket with valve pocket; The area of said first end face is placed the dual purpose valve place and is provided with the pressure relief opening that communicates with said low pressure oil pocket less than the area of second end face on the said pump cover.
Preferably, said valve pocket is connected through the inlet of first machine oil on the pump cover with said high-voltage oil cavity.
Preferably, said dual purpose valve comprises that also spring that is contained in the spool lower end and the valve body that is contained in the spring lower end stop up.
Preferably, the oil pump outlet passage is set on the said pump housing, said oil pump outlet passage one end is connected with high-voltage oil cavity, and the other end is connected with the motor main oil gallery.
Preferably, oil pump oil return inlet channel is set on the said pump housing, said oil pump oil return inlet channel one end is connected with the motor back oil road, and the other end is connected with said oil back chamber through the inlet of second machine oil on the said pump cover.
Preferably, said pressure relief opening is at least 2.
Automobile engine oil pump of the present invention, the dual purpose valve of its setting had both played the effect of safety valve; I.e. quick pressure releasing when cold start-up; Play the effect of pressure-limit valve again, i.e. stable pressure release when the motor proper functioning, thus reduce the oil pump arrangement space and alleviated the quality of whole oil pump.
Description of drawings
Fig. 1 is the structural representation that the present invention is used for the oil pump of motor car engine.
Fig. 2 is the sectional structure schematic representation along A-A place among Fig. 1.
Fig. 3 is the broken section structural representation along B-B place among Fig. 1.
Fig. 4 is the structural representation of spool among the present invention.
Fig. 5 is the structural representation of pump cover among the present invention.
Fig. 6 is the structural representation of middle pump body of the present invention.
Fig. 7 is the sectional structure schematic representation along " C-C " line among Fig. 6.
Fig. 8 is the sectional structure schematic representation along " D-D " line among Fig. 6.
Embodiment
Below in conjunction with accompanying drawing the present invention is done and to specify.
As shown in Figure 1, automobile engine oil pump of the present invention comprises pump cover 2; With the pump cover 2 bolted pump housings 1, as shown in Figure 2, be provided with internal rotor 3 in the pump housing 1, be positioned at the external rotor 4 outside the internal rotor 3; As shown in Figure 6, be provided with high-voltage oil cavity 16 that is positioned at the pump housing 1 top and the low pressure oil pocket 17 that is positioned at the pump housing 1 bottom in the pump housing 1, as shown in figures 1 and 3; Pump cover 1 is provided with dual purpose valve, and dual purpose valve comprises valve body, is provided with oil back chamber 14, valve pocket 15 and spool 5 in the valve body; Oil back chamber 14 is positioned at valve pocket 15 tops, and spool 5 is contained in the valve pocket 15, and oil back chamber 14 and valve pocket 15 are isolated; Valve pocket 15 is connected with high-voltage oil cavity 16, and is as shown in Figure 4, and spool 5 is provided with first end face 10 that contacts, bears the downward active force of machine oil in the oil back chamber 14 with oil back chamber 14; And contact, bear second end face 11 of the downward active force of machine oil in the valve pocket 15 with valve pocket 15; The area of first end face 10 is less than the area of second end face 11, and is as shown in Figure 5, and 2 placement dual purpose valve places are provided with the pressure relief opening 18 that communicates with low pressure oil pocket 17 on the pump cover.As shown in Figure 3, under the normal pressure state, spool 5 makes valve pocket 15 and low pressure oil pocket 17 be in the partition state pressure relief opening 18 sealings.
As shown in Figure 5, pressure relief opening 18 is 2, or more than 2, quick to guarantee pressure release, no retardation phenomenon.
Like Fig. 3 and shown in Figure 5, valve pocket 15 is connected through the inlet of first machine oil on the pump cover 29 with high-voltage oil cavity 16.
As shown in Figure 3, dual purpose valve comprises that also spring 6 that is contained in spool 5 lower ends and the valve body that is contained in the spring lower end stop up 7.
As shown in Figure 7, oil pump outlet passage 12 is set on the pump housing 1, oil pump outlet passage 12 1 ends are connected with high-voltage oil cavity 16, and the other end is connected with the motor main oil gallery.
Like Fig. 8 and shown in Figure 5, oil pump oil return inlet channel 13 is set on the pump housing 1, oil pump oil return inlet channel 13 1 ends are connected with the motor back oil road, and the other end is connected with oil back chamber 14 through second machine oil on the pump cover 2 inlet 8.
The oil pump of said structure is when work, if machine oil is in the normal operating pressure state, dual purpose valve then of the present invention is inoperative, and machine oil directly gets into oil pump outlet passage 12 from high-voltage oil cavity 16, and the inflow engine main oil gallery is lubricated again.When engine cold-start, machine oil gets into oil back chambers 14 from second machine oil inlet 8 again from the oil pump oil return inlet channel 13 of flowing through of the back oil road on the motor; If pressure is excessive, surpass the spring cracking pressure, the engine oil pressure in the oil back chamber 14 acts on first end face 10; Promoting spool 5 moves downward; Make high-voltage oil cavity 16, valve pocket 15 and pressure relief opening 18 communicate, oil unnecessary in the high-voltage oil cavity 16 flows to low pressure oil pocket 17 through pressure relief opening 18, thereby makes the main oil gallery pressure release that communicates with high-voltage oil cavity 16.
When engine operation, machine oil gets into valve pocket 15 from high-voltage oil cavity 16 through first machine oil inlet 9, and is as shown in Figure 4; The area of cause first end face 10 is less than the area of second end face 11; Then valve pocket 15 inner engine oils certainly exist difference to the downward pressure P of spool 5 and valve pocket 15 inner engine oils to spool 5 F that upwards pressure, if high-voltage oil cavity 16 inner engine oil pressure are excessive, cause this difference to surpass the cracking pressure of spring; Then the machine oil promotion spool 5 in the valve pocket 15 moves downward; Make high-voltage oil cavity 16, valve pocket 15 and pressure relief opening 18 communicate, oil unnecessary in the high-voltage oil cavity 16 flows to low pressure oil pocket 17 through pressure relief opening 18, thereby makes the main oil gallery pressure release that communicates with high-voltage oil cavity 16.
After adopting above structure; Compared with prior art; The present invention has the following advantages: prevent that when engine cold-start destructive oil pressure from producing excessive impact to the part of engine lubrication system; Protected the part of motor, and motor can be stablized pressure release fast again when normal operation.Be that this valve has realized that a valve is dual-purpose, promptly can be used as safety valve and can be used as pressure-limit valve again, and practiced thrift the arrangement space of oil pump, alleviated the quality of oil pump.
More than just exemplary explanation has been carried out in invention, concrete implementation of the present invention is not limited thereto.The present invention is not limited to the structure described in the foregoing description; Dual purpose valve also can illustrate 4 this structures; Also play dual-purpose effect, the insubstantial modifications that any employing design of the present invention and technological scheme are carried out is all within protection scope of the present invention.
Claims (6)
1. automobile engine oil pump; Comprise the pump cover (2) and the pump housing (1), be provided with high-voltage oil cavity (16) and low pressure oil pocket (17) in the said pump housing (1), it is characterized in that: said pump cover (2) is provided with dual purpose valve; Said dual purpose valve comprises valve body; Be provided with oil back chamber (14), valve pocket (15) and spool (5) in the said valve body, said oil back chamber (14) is positioned at said valve pocket (15) top, and said spool (5) is contained in the valve pocket (15); And with oil back chamber (14) and valve pocket (15) isolation; Said valve pocket (15) is connected with said high-voltage oil cavity (16), and said spool (5) is provided with first end face (10) that contacts, bears the downward active force of machine oil in the oil back chamber (14) with oil back chamber (14), and contacts, bears second end face (11) of the downward active force of machine oil in the valve pocket (15) with valve pocket (15); The area of said first end face (10) is less than the area of second end face (11), and said pump cover (2) is gone up placement dual purpose valve place and is provided with the pressure relief opening (18) that communicates with said low pressure oil pocket (17).
2. automobile engine oil pump according to claim 1 is characterized in that: said valve pocket (15) is connected through the inlet of first machine oil on the pump cover (2) (9) with said high-voltage oil cavity (16).
3. automobile engine oil pump according to claim 1 is characterized in that: said dual purpose valve also comprises the spring (6) that is contained in spool (5) lower end and is contained in the valve body obstruction (7) of spring (6) lower end.
4. automobile engine oil pump according to claim 1 is characterized in that: oil pump outlet passage (12) is set on the said pump housing (1), and said oil pump outlet passage (12) one ends are connected with high-voltage oil cavity (16), and the other end is connected with the motor main oil gallery.
5. automobile engine oil pump according to claim 1; It is characterized in that: oil pump oil return inlet channel (13) is set on the said pump housing (1); Said oil pump oil return inlet channel (13) one ends are connected with the motor back oil road, and the other end is connected with said oil back chamber (14) through the inlet of second machine oil on the said pump cover (2) (8).
6. automobile engine oil pump according to claim 1 is characterized in that: said pressure relief opening (18) is at least 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102000597A CN101865003B (en) | 2010-06-18 | 2010-06-18 | Automobile engine oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102000597A CN101865003B (en) | 2010-06-18 | 2010-06-18 | Automobile engine oil pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101865003A CN101865003A (en) | 2010-10-20 |
| CN101865003B true CN101865003B (en) | 2012-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102000597A Active CN101865003B (en) | 2010-06-18 | 2010-06-18 | Automobile engine oil pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN101865003B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9869313B2 (en) | 2012-03-29 | 2018-01-16 | Shenzhen Byd Auto R&D Company Limtied | Oil pump, engine cover and engine comprising the same |
| US9752472B2 (en) | 2012-03-29 | 2017-09-05 | Shenzhen Byd Auto R&D Company Limited | Oil pump, engine cover and engine comprising the same |
| EP2831488B1 (en) | 2012-03-29 | 2018-02-28 | Shenzhen BYD Auto R&D Company Limited | Oil pump, engine cover and engine comprising the same |
| CN103806976B (en) * | 2014-02-25 | 2016-07-13 | 奇瑞汽车股份有限公司 | A kind of control method of lubricating oil pump and engine lubrication system thereof |
| CN104003306B (en) * | 2014-06-04 | 2017-04-12 | 徐工集团工程机械股份有限公司 | Hydraulic starting system, method and crane |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04111505U (en) * | 1991-03-15 | 1992-09-28 | 本田技研工業株式会社 | Refueling system in internal combustion engines |
| EP0508486B1 (en) * | 1991-04-12 | 1996-10-02 | Yamaha Hatsudoki Kabushiki Kaisha | Method for lubricating a two-cycle internal combustion engine and lubricating oil supplying system |
| CN2866838Y (en) * | 2006-01-24 | 2007-02-07 | 潍柴动力股份有限公司 | Diesel engine oil pump |
| CN101082293A (en) * | 2007-06-06 | 2007-12-05 | 潍柴动力股份有限公司 | Engine oil pump pressure regulating device |
| CN201057068Y (en) * | 2007-06-06 | 2008-05-07 | 潍柴动力股份有限公司 | Engine oil pump pressure regulating device |
| JP5190684B2 (en) * | 2008-06-12 | 2013-04-24 | アイシン精機株式会社 | Vehicle oil supply device |
| CN201778850U (en) * | 2010-06-18 | 2011-03-30 | 上海幸福摩托车有限公司 | Oil pump for automobile engine |
-
2010
- 2010-06-18 CN CN2010102000597A patent/CN101865003B/en active Active
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| Publication number | Publication date |
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| CN101865003A (en) | 2010-10-20 |
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Effective date of registration: 20190327 Address after: Building No. 18, 998 Tongji Road, Baoshan District, Shanghai, 20199 Patentee after: Huayu Pilberg Pump Technology Co., Ltd. Address before: No. 309 Youyi Road, Baoshan District, Shanghai, 201900 Patentee before: Shanghai Xingfu Motorcycle Co., Ltd. |