CN103016936A - Pressure-limiting valve spring for oil pump assemblies of gasoline engines - Google Patents
Pressure-limiting valve spring for oil pump assemblies of gasoline engines Download PDFInfo
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- CN103016936A CN103016936A CN2011102984641A CN201110298464A CN103016936A CN 103016936 A CN103016936 A CN 103016936A CN 2011102984641 A CN2011102984641 A CN 2011102984641A CN 201110298464 A CN201110298464 A CN 201110298464A CN 103016936 A CN103016936 A CN 103016936A
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- limiting valve
- pressure
- oil pump
- valve spring
- pump assembly
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Abstract
The invention discloses a pressure-limiting valve spring for oil pump assemblies of gasoline engines, which is mounted in a pressure-limiting valve cavity, the upper end of the pressure-limiting valve spring for oil pump assemblies of gasoline engines is propped by a set screw, and the upper end of a pressure-limiting valve spool is propped by the pressure-limiting valve spring for oil pump assemblies of gasoline engines; and the pressure-limiting valve spring for oil pump assemblies of gasoline engines is 28mm long and 8.9mm in diameter. The pressure-limiting valve spring can automatically control pressure and flow, and can be effectively matched with other elements, and the matching performance can meet the requirements of flow and pressure needed by oil pump assemblies of gasoline engines.
Description
Technical field
The present invention relates to a kind of spring, particularly a kind of limiting valve spring of gasoline engine oil pump assembly.
Background technique
Because the performance parameter of gasoline engine oil pump assembly requires high, needing in engine speed is under the 700-7200rpm condition, the realization lubrication flow is 17.33-19.5L/min, the pressure release cracking pressure is auto-adjustment control high pressure oil motion under the technical specifications of 4.5-5.5bar, so limiting valve spring is important spare part.Because the design of limiting valve spring can't be mated with the oil pump overall performance, often affected the stability of oil pump capacity and pressure in the past.
Summary of the invention
Technical problem to be solved by this invention provides a kind of limiting valve spring of gasoline engine oil pump assembly, and it can realize regulating and controlling pressure and flow automatically, effectively mates with other elements, and matching performance has satisfied required flow and the pressure of engine oil pump assembly.
For solveing the technical problem, the invention provides a kind of limiting valve spring of gasoline engine oil pump assembly, it is characterized in that, the limiting valve spring of gasoline engine oil pump assembly is contained in the pressure limiting valve pocket, a set screw withstands on the upper end of the limiting valve spring of gasoline engine oil pump assembly, and the limiting valve spring of gasoline engine oil pump assembly withstands on the upper end of a valve core of pressure-limiting valve; The length of the limiting valve spring of gasoline engine oil pump assembly is 28 millimeters, and diameter is 8.9 millimeters.
Positive progressive effect of the present invention is: the limiting valve spring of gasoline engine oil pump assembly of the present invention can be realized regulating and controlling pressure and flow automatically, the limiting valve spring of gasoline engine oil pump assembly and other elements coupling, matching performance has satisfied required flow and the pressure of engine oil pump assembly.Working stability, the intensity of the limiting valve spring of oil machine oil pump assy are reliable, and spring force reliable performance, life-span are long.
Description of drawings
Fig. 1 is the working principle schematic representation of the limiting valve spring of gasoline engine oil pump assembly of the present invention.
Fig. 2 is the structural representation of the limiting valve spring of gasoline engine oil pump assembly of the present invention.
Embodiment
The below lifts a preferred embodiment, and comes by reference to the accompanying drawings the clearer the present invention that intactly illustrates.
As depicted in figs. 1 and 2, the limiting valve spring 2 of gasoline engine oil pump assembly of the present invention is contained in the pressure limiting valve pocket 5, set screw 1 withstands on the upper end of the limiting valve spring 2 of gasoline engine oil pump assembly, and the limiting valve spring 2 of gasoline engine oil pump assembly withstands on the upper end of valve core of pressure-limiting valve 3.The length of the limiting valve spring 2 of gasoline engine oil pump assembly is 28 millimeters, and diameter is 8.9 millimeters.The limiting valve spring of gasoline engine oil pump assembly can be realized regulating and controlling pressure and flow automatically, and the limiting valve spring of gasoline engine oil pump assembly and other elements effectively mate, and matching performance has satisfied required flow and the pressure of engine oil pump assembly.Working stability, the intensity of the limiting valve spring of oil machine oil pump assy are reliable, and spring force reliable performance, life-span are long.
It is whole that the limiting valve spring 2 of set screw 1, gasoline engine oil pump assembly, valve core of pressure-limiting valve 3, pressure limiting valve pocket 5 have formed pressure-limit valve.Wherein the vital part spring is in pressure-limit valve, with compression and the reduction of the limiting valve spring total height of gasoline engine oil pump assembly, closes or open spool control high pressure oil pressure.The specific works principle is as follows: the valve core of pressure-limiting valve 3 pressure limiting valve pocket 5 of packing into first, then the limiting valve spring 2 of gasoline engine oil pump assembly withstands on valve core of pressure-limiting valve 3 upper ends, last set screw 1 is contained in the upper end of the limiting valve spring 2 of gasoline engine oil pump assembly, and limiting valve spring 2 and the valve core of pressure-limiting valve 3 of gasoline engine oil pump assembly is fixed in the pressure limiting valve pocket 5.When the oil pump high pressure oil surpasses setting pressure, high pressure oil makes in the cross section of valve core of pressure-limiting valve 3 stressed by high-pressure oil duct 6, oil pressure passes to the limiting valve spring 2 of gasoline engine oil pump assembly simultaneously, make the limiting valve spring 2 total heights compression of gasoline engine oil pump assembly, valve core of pressure-limiting valve 3 is moved up, connect spool oil outlet 4, with the high pressure oil pressure release.When pressure oil was lower than setting pressure after the pressure release, the power elastic force of the limiting valve spring 2 of gasoline engine oil pump assembly was during greater than oil pressure, the reduction of limiting valve spring 2 total heights of gasoline engine oil pump assembly, make valve core of pressure-limiting valve 3 move down reduction, close spool oil outlet 4, make high pressure oil continue to boost, go round and begin again.
Although 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 various changes or modifications to these mode of executions.Therefore, protection scope of the present invention is limited by appended claims.
Claims (1)
1. the limiting valve spring of a gasoline engine oil pump assembly, it is characterized in that, the limiting valve spring of gasoline engine oil pump assembly is contained in the pressure limiting valve pocket, a set screw withstands on the upper end of the limiting valve spring of gasoline engine oil pump assembly, and the limiting valve spring of gasoline engine oil pump assembly withstands on the upper end of a valve core of pressure-limiting valve; The length of the limiting valve spring of gasoline engine oil pump assembly is 28 millimeters, and diameter is 8.9 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102984641A CN103016936A (en) | 2011-09-28 | 2011-09-28 | Pressure-limiting valve spring for oil pump assemblies of gasoline engines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102984641A CN103016936A (en) | 2011-09-28 | 2011-09-28 | Pressure-limiting valve spring for oil pump assemblies of gasoline engines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103016936A true CN103016936A (en) | 2013-04-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102984641A Pending CN103016936A (en) | 2011-09-28 | 2011-09-28 | Pressure-limiting valve spring for oil pump assemblies of gasoline engines |
Country Status (1)
| Country | Link |
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| CN (1) | CN103016936A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020139345A1 (en) * | 2001-03-27 | 2002-10-03 | Toyoda Boshoku Corporation | Oil pump for internal combustion engine and method of operating the same |
| CN200985813Y (en) * | 2006-12-06 | 2007-12-05 | 比亚迪股份有限公司 | Engine oil pressure-limiting oilchannel |
| CN201050391Y (en) * | 2007-04-21 | 2008-04-23 | 潍柴动力股份有限公司 | Double pressure-limiting valve engine oil pump |
| CN101435529A (en) * | 2008-12-17 | 2009-05-20 | 奇瑞汽车股份有限公司 | Engine oil pump |
| CN201892016U (en) * | 2010-11-13 | 2011-07-06 | 湖南机油泵股份有限公司 | Balance oil discharge valve rotor type oil pump |
| CN202281020U (en) * | 2011-09-28 | 2012-06-20 | 上海乾通汽车附件有限公司 | Pressure-limiting valve spring of gasoline lubricating pump assembly |
-
2011
- 2011-09-28 CN CN2011102984641A patent/CN103016936A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020139345A1 (en) * | 2001-03-27 | 2002-10-03 | Toyoda Boshoku Corporation | Oil pump for internal combustion engine and method of operating the same |
| CN200985813Y (en) * | 2006-12-06 | 2007-12-05 | 比亚迪股份有限公司 | Engine oil pressure-limiting oilchannel |
| CN201050391Y (en) * | 2007-04-21 | 2008-04-23 | 潍柴动力股份有限公司 | Double pressure-limiting valve engine oil pump |
| CN101435529A (en) * | 2008-12-17 | 2009-05-20 | 奇瑞汽车股份有限公司 | Engine oil pump |
| CN201892016U (en) * | 2010-11-13 | 2011-07-06 | 湖南机油泵股份有限公司 | Balance oil discharge valve rotor type oil pump |
| CN202281020U (en) * | 2011-09-28 | 2012-06-20 | 上海乾通汽车附件有限公司 | Pressure-limiting valve spring of gasoline lubricating pump assembly |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| 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: 20130403 |