Combination valve for oil pump

Abstract

The invention relates to the technical field of combined valves, in particular to a combined valve for an oil pump, which includes a valve body, a cover plate is threadedly connected to the left end of the valve body, and an oil inlet hole is opened in the middle part of the left side of the cover plate. The structure is simple, it can filter the impurities in the engine oil to prevent the impurities from flowing into the wear parts inside the car, and also prevent the impurities from adhering to the ball valve core to affect its airtightness, and it is easy to clean the filter, which can be used in the process While releasing the pressure, the oil accumulated on the stopper is scraped off, and the force released by the first spring and the second spring can realize the quick reset of the ball valve core and the stopper, and through four connecting rods from four Limiting the direction of the limit rod can effectively avoid its deviation, thereby effectively avoiding the deviation of the spherical valve core, and it is easy to disassemble. The disassembly and cleaning of the inner wall of the valve can be carried out at the same time, which is worth popularizing and use.

Description

technical field [0001] The invention relates to the technical field of combined valves, in particular to a combined valve for an oil pump. Background technique [0002] The oil pump is used to ensure the circulation of lubricating oil in the lubrication system, and to provide a sufficient amount of lubricating oil at each speed of the engine to maintain sufficient lubricating oil pressure and ensure the lubrication of the engine. In order to prevent excessive oil pressure, It is usually necessary to set a pressure relief valve for pressure relief, but there are some impurities in the oil. These impurities enter the valve and adhere to the surface of the valve core, which will cause the valve core to not close tightly and affect the normal operation of the pressure relief valve, and these impurities will adhere to the valve core. On the inner wall, because the valve body is not easy to disassemble, these impurities cannot be removed from the inner wall of the valve, which wil...

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Problems solved by technology

[0002] The oil pump is used to ensure the circulation of lubricating oil in the lubrication system, and to provide a sufficient amount of lubricating oil at each speed of the engine to maintain sufficient lubricating oil pressure and ensure the lubrication of the engine. In order to prevent excessive oil pressure, It is usually necessary to set a pressure relief valve for pressure relief, but there are some impurities in the oil. These impurities enter the valve and adhere to the surface of the valve core, which will cause the valve core to not close tightly and affect the normal operation of the pressure relief valve, and these impurities will adhere to the valve core. On the inner wall, because the valve body is not easy to disassemble, these impurities cannot be removed from the inner wall of the valve, which will affect the use of the valve body for a long time. The core is in contact with engine oil for a long time, and the oil has a certain viscosity, which will cause the contact surface between the valve core and the oil drain hole to be bonded by engine oil, resulting in a decrease in the sensitivity when it is opened, and the valve core may deviate from the oil drain due to long-term use. hole, so we propose a combination valve for oil pump to solve this kind of problem

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