CN103256092A - Oil pump assembly of gasoline engine - Google Patents
Oil pump assembly of gasoline engine Download PDFInfo
- Publication number
- CN103256092A CN103256092A CN2012100352904A CN201210035290A CN103256092A CN 103256092 A CN103256092 A CN 103256092A CN 2012100352904 A CN2012100352904 A CN 2012100352904A CN 201210035290 A CN201210035290 A CN 201210035290A CN 103256092 A CN103256092 A CN 103256092A
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- CN
- China
- Prior art keywords
- limiting valve
- pressure
- pressure limiting
- driving shaft
- locating stud
- 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.)
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Abstract
The invention discloses an oil pump assembly of a gasoline engine. The oil pump assembly of the gasoline engine comprises elements such as a bulkhead, a driving shaft positioning hole, a pressure limiting valve chamber, a combined gasket, a pressure limiting valve spring, a pressure limiting valve screw, a pressure limiting valve core, a gear chamber, a driving shaft and a driven shaft, wherein the bulkhead covers on the driving shaft positioning hole; the pressure limiting valve spring is sleeved on the pressure limiting valve core; the pressure limiting valve spring, the pressure limiting valve core and the combined gasket are arranged inside the pressure limiting valve chamber; the pressure limiting valve screw is screwed on the pressure limiting valve chamber to fix the pressure limiting valve spring and the pressure limiting valve core; the gear chamber is fixed on a pump body; the driving shaft is fixed inside the driving shaft positioning hole; the driven shaft is connected with the driving shaft; a first positioning pin and a fourth positioning pin are arranged on the lateral side of the gear chamber; a second positioning pin and a third positioning pin are arranged under the pump body; an involute gear is arranged on the driven shaft; and a pump cover and the pump body and the gear chamber are fixed through pump cover screws. The various elements of the oil pump assembly of the gasoline engine are effectively matched to enable the flow and the pressure of the oil pump assembly to remain stable.
Description
Technical field
The present invention relates to a kind of petrol engine, particularly a kind of petrolic engine oil pump assembly.
Background technique
It is under the 700-7200rpm condition that petrolic engine oil pump assembly needs in engine speed, the realization lubrication flow is 17.3-19.5L/min, the pressure release cracking pressure is 4.5-5.5bar, designs such as the involute gear of existing engine oil pump assembly and pressure-limit valve, spring force, oil outlet, oil duct flow resistance can not effectively be mated, and cause defectives such as engine oil pump assembly flow and pressure instability.
Summary of the invention
Technical problem to be solved by this invention provides a kind of petrolic engine oil pump assembly, and wherein each element effectively mates, and makes pump assembly flow and pressure keep stable.
For solveing the technical problem, the invention provides a kind of petrolic engine oil pump assembly, it is characterized in that, it comprises silently, the driving shaft positioning hole, the pressure limiting valve pocket, combination mat, limiting valve spring, the pressure-limit valve screw, valve core of pressure-limiting valve, gear chamber, driving shaft, driven shaft, first locating stud, second locating stud, the 3rd locating stud, the 4th locating stud, the pump housing, involute gear, pump cover, screw, silently cover the driving shaft positioning hole, limiting valve spring is enclosed within on the valve core of pressure-limiting valve, limiting valve spring, valve core of pressure-limiting valve, combination mat is packed in the pressure limiting valve pocket, the pressure-limit valve screw threads on the pressure limiting valve pocket with fixedly limiting valve spring and valve core of pressure-limiting valve, gear chamber is fixed on the pump housing, driving shaft is fixed in the driving shaft positioning hole, driven shaft is connected with driving shaft, first locating stud and the 4th locating stud are contained in the side of gear chamber, second locating stud, the 3rd locating stud is contained in the below of the pump housing, involute gear is contained on the driven shaft, and pump cover is by pump cover screw and the pump housing, gear chamber is fixed.
Positive progressive effect of the present invention is: the petrolic engine oil pump assembly of the present invention in light weight, and pressure surge is little, working stability, reliable performance, the life-span is long.
Description of drawings
Fig. 1 is the overall structure schematic representation of the petrolic engine oil pump assembly of the present invention.
Fig. 2 is the working principle schematic representation of the petrolic engine oil pump assembly of the present invention.
Embodiment
Lift a preferred embodiment below, and come the clearer the present invention that intactly illustrates by reference to the accompanying drawings.
As shown in Figure 1, the petrolic engine oil pump assembly of the present invention comprises silently 1, driving shaft positioning hole 2, pressure limiting valve pocket 3, combination mat 4, limiting valve spring 5, pressure-limit valve screw 6, valve core of pressure-limiting valve 7, gear chamber 8, driving shaft 9, driven shaft 10, first locating stud 11, second locating stud 12, the 3rd locating stud 13, the 4th locating stud 14, the pump housing 15, involute gear 16, pump cover 17, screw 18, silently 1 cover driving shaft positioning hole 2, limiting valve spring 5 is enclosed within on the valve core of pressure-limiting valve 7, limiting valve spring 5, valve core of pressure-limiting valve 7, combination mat 4 is packed in the pressure limiting valve pocket 3, pressure-limit valve screw 6 is spun on the pressure limiting valve pocket 3 with fixedly limiting valve spring 5 and valve core of pressure-limiting valve 7, gear chamber 8 is fixed on the pump housing 15, driving shaft 9 is fixed in the driving shaft positioning hole 2, driven shaft 10 is connected with driving shaft 9, first locating stud 11 and the 4th locating stud 14 are contained in the side of gear chamber 8, second locating stud 12, the 3rd locating stud 13 is contained in the below of the pump housing 15, involute gear 16 is contained on the driven shaft 10, and pump cover 17 is by pump cover screw 18 and the pump housing 15, gear chamber 8 is fixing.
The installation process of the petrolic engine oil pump assembly of the present invention is as follows: after at first being contained on driving shaft 9 and the driven shaft 10 by involute gear 16, integral installation is on gear chamber 8.Driving shaft 9 is fixed in the driving shaft positioning hole 2, silently 1 covers driving shaft positioning hole 2.Pump cover 17 is contained on the plane of the pump housing 15 and gear chamber 8, and fixing with screw 18.Limiting valve spring 5 is enclosed within on the valve core of pressure-limiting valve 7, packs in the pressure limiting valve pocket 3 together with combination mat 4, and pressure-limit valve screw 6 is spun on the pressure limiting valve pocket 3 with fixedly limiting valve spring 5 and valve core of pressure-limiting valve 7.Pack at last first locating stud 11, second locating stud 12, the 3rd locating stud 13, the 4th locating stud 14.
As shown in Figure 2, the working principle of the petrolic engine oil pump assembly of the present invention is as follows: bent axle drives sprocket rotation driving shaft and involute gear 16 on the motor, moment produces vacuum makes fuel sucking pipe 21 oil suctions enter involute gear low-pressure cavity 22, enter involute gear hyperbaric chamber 23 by gear engagement low pressure oil, moment produces high pressure and enters high-pressure oil duct 24 in the cavity of sealing.High-pressure oil duct when high pressure oil surpasses restriction pressure, backs down limiting valve spring 5 and valve core of pressure-limiting valve 25, make super high pressure oil by pressure limiting valve pocket 26 and relief hole 27 oil returns to low-pressure cavity, keep setting the high pressure oil pressure stability, export 28 supply engine lubrication systems from high pressure oil, go round and begin again.
The petrolic engine oil pump assembly of the present invention in light weight, pressure surge is little, working stability, reliable performance, the life-span is long.Among the present invention silently, driving shaft positioning hole, pressure limiting valve pocket, combination mat, limiting valve spring, pressure-limit valve screw, valve core of pressure-limiting valve, gear chamber, driving shaft, driven shaft, first locating stud, second locating stud, the 3rd locating stud, the 4th locating stud, the pump housing, involute gear, pump cover, screw effectively mate, and makes pump assembly flow and pressure keep stable.
Though more than described the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, under the prerequisite that does not deviate from principle of the present invention and essence, can make numerous variations or modification to these mode of executions.Therefore, protection scope of the present invention is limited by appended claims.
Claims (1)
1. petrolic engine oil pump assembly, it is characterized in that, it comprises silently, the driving shaft positioning hole, the pressure limiting valve pocket, combination mat, limiting valve spring, the pressure-limit valve screw, valve core of pressure-limiting valve, gear chamber, driving shaft, driven shaft, first locating stud, second locating stud, the 3rd locating stud, the 4th locating stud, the pump housing, involute gear, pump cover, screw, silently cover the driving shaft positioning hole, limiting valve spring is enclosed within on the valve core of pressure-limiting valve, limiting valve spring, valve core of pressure-limiting valve, combination mat is packed in the pressure limiting valve pocket, the pressure-limit valve screw threads on the pressure limiting valve pocket with fixedly limiting valve spring and valve core of pressure-limiting valve, gear chamber is fixed on the pump housing, driving shaft is fixed in the driving shaft positioning hole, driven shaft is connected with driving shaft, first locating stud and the 4th locating stud are contained in the side of gear chamber, second locating stud, the 3rd locating stud is contained in the below of the pump housing, involute gear is contained on the driven shaft, and pump cover is by pump cover screw and the pump housing, gear chamber is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100352904A CN103256092A (en) | 2012-02-16 | 2012-02-16 | Oil pump assembly of gasoline engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100352904A CN103256092A (en) | 2012-02-16 | 2012-02-16 | Oil pump assembly of gasoline engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103256092A true CN103256092A (en) | 2013-08-21 |
Family
ID=48960266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100352904A Pending CN103256092A (en) | 2012-02-16 | 2012-02-16 | Oil pump assembly of gasoline engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103256092A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104964151A (en) * | 2015-07-03 | 2015-10-07 | 南京高德机械有限公司 | Diesel engine oil pump |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2554470A1 (en) * | 1975-12-04 | 1977-06-08 | Daimler Benz Ag | Gear type lubricating oil pump for IC engine - has pump wheel fixed to engine crank-shaft |
| CN201187445Y (en) * | 2007-11-30 | 2009-01-28 | 广西玉柴机器股份有限公司 | Engine oil pump of diesel |
| CN101769187A (en) * | 2008-12-29 | 2010-07-07 | 涂强 | Engine structure of motor vehicle |
| CN201753624U (en) * | 2010-08-02 | 2011-03-02 | 娄九操 | Single-cylinder S-type diesel engine gear type oil pump |
| CN202483666U (en) * | 2012-02-16 | 2012-10-10 | 上海乾通汽车附件有限公司 | Engine oil pump assembly for gasoline engine |
-
2012
- 2012-02-16 CN CN2012100352904A patent/CN103256092A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2554470A1 (en) * | 1975-12-04 | 1977-06-08 | Daimler Benz Ag | Gear type lubricating oil pump for IC engine - has pump wheel fixed to engine crank-shaft |
| CN201187445Y (en) * | 2007-11-30 | 2009-01-28 | 广西玉柴机器股份有限公司 | Engine oil pump of diesel |
| CN101769187A (en) * | 2008-12-29 | 2010-07-07 | 涂强 | Engine structure of motor vehicle |
| CN201753624U (en) * | 2010-08-02 | 2011-03-02 | 娄九操 | Single-cylinder S-type diesel engine gear type oil pump |
| CN202483666U (en) * | 2012-02-16 | 2012-10-10 | 上海乾通汽车附件有限公司 | Engine oil pump assembly for gasoline engine |
Non-Patent Citations (1)
| Title |
|---|
| 傅成昌 等: "《天然气机构造与使用》", 30 November 2007, article "齿轮式机油泵" * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104964151A (en) * | 2015-07-03 | 2015-10-07 | 南京高德机械有限公司 | Diesel engine oil pump |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130821 |