An integrated oil pump assembly
An integrated engine and oil pump technology, applied in the direction of pressure lubrication of lubricating pumps, lubricating indicating devices, lubricating parts, etc., can solve the problems of inaccurate oil level measurement, increase in engine volume, and change in overall engine height design, etc., to reduce Number of parts, easy layout, reduced height effect
Active Publication Date: 2016-02-03
CHONGQING CHANGAN AUTOMOBILE CO LTD
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Problems solved by technology
[0002] The lubrication system is one of the key factors for the normal operation of the engine. The oil pump is the core component of the lubrication system. Operate under proper lubricating conditions to improve the reliability, economy and NVH performance of the engine. For example, CN101915137A discloses an integrated mechanism of the front cover of the engine and the oil pump assembly. This invention patent effectively simplifies the drive system of the oil pump , but the existing oil pump still has shortcomings. For example, the installation holes of the pressure limiting valve of the oil pump are all vertically arranged on the oil pump housing, but because the installation hole of the pressure limiting valve is long, the arrangement of the entire oil pump assembly It is more difficult, the overall height of the engine is designed to be higher, which increases the volume of the engine
[0003] In addition, the installation holes of the oil level gauge conduits of existing engines are generally arranged on the cylinder block of the engine. Because there are too many things installed on the cylinder block, it brings a lot of difficulties to the arrangement and installation of the oil level gauge conduits, and the oil level The axis of the gauge conduit mounting hole is too inclined relative to the engine oil level, resulting in inaccurate oil level measurement
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[0019] Below in conjunction with accompanying drawing and embodiment the present invention will be further elaborated:
[0020] see Figure 1 to Figure 5 The integrated oil pump assembly shown includes a front cover 1 of the engine, a pump cover 2 fixedly connected to the lower inner wall of the front cover 1, and the front cover 1 and the pump cover 2 are fixedly connected to form a pump chamber. It also includes an inner rotor 3 located in the pump chamber and an outer rotor 4 matched therewith;
[0021] The left part of the pump cover 2 is provided with a first oil passage 2-1 and an oil inlet 2-4, and the lower part of the first oil passage 2-1 is provided with an opening communicating with the oil inlet 2-4; the pump The right part of the cover 2 is provided with a second oil passage 2-2, which is separated from the first oil passage 2-1 by the inner rotor 3 and the outer rotor 4; the lower part of the pump cover 2 is provided with There is a third oil passage 2-3, the ...
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The invention relates to an integrated oil pump assembly which comprises a front casing of an engine, an oil pump cover, an inner rotor and an outer rotor. A limit valve mounting hole protruding out and tilting rightward are arranged on the right of the pump cover. The lower left edge of the outside of the front casing is provided with an oil level gauge guide tube mounting hole which protrudes out. The integrated oil pump assembly is compact in structure, and the mounting space of the integrated oil pump assembly in the engine is further reduced. The mounting position of an oil level gauge guide tube is changed, and accordingly interior oil level of the engine can be accurately measured by the oil level gauge guide tube.
Description
technical field [0001] The invention relates to an automobile engine lubricating system, in particular to an integrated oil pump assembly. Background technique [0002] The lubrication system is one of the key factors for the normal operation of the engine. The oil pump is the core component of the lubrication system. Operate under proper lubricating conditions to improve the reliability, economy and NVH performance of the engine. For example, CN101915137A discloses an integrated mechanism of the front cover of the engine and the oil pump assembly. This invention patent effectively simplifies the drive system of the oil pump , but the existing oil pump still has shortcomings. For example, the installation holes of the pressure limiting valve of the oil pump are all vertically arranged on the oil pump housing, but because the installation hole of the pressure limiting valve is long, the arrangement of the entire oil pump assembly More difficult, the overall height design of ...
Claims
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IPC IPC(8): F01M1/02F01M11/12
Inventor 饶平平徐勇徐丽茹李久林张林
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD