Oil pump
An oil pump and pump body technology, applied in the field of oil pumps, can solve the problems of complex structure and inconvenient installation of the oil pump, and achieve the effect of simple structure and convenient installation.
Inactive Publication Date: 2018-06-26
南京创新机油泵制造有限公司
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Problems solved by technology
[0003] The purpose of the present invention is to provide an oil pump to solve the technical problems of complex structure and inconvenient installation of the oil pump in the prior art
Method used
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[0023] In order to make the purpose and technical solution of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention.
[0024] Such as Figure 1-5 As shown, an oil pump includes:
[0025] Pump body 10, the pump body includes a main body 1 and a protruding end 2 on the main body, a stepped hole is opened through the main body 1, and the stepped hole includes a rotor cavity 3 and a shaft hole 4, and the rotor cavity 3 is installed close to the pump body On the surface, the rotor cavity 3 is a cylindrical cavity, the diameter of the rotor cavity 3 is larger than the shaft hole 4, and there is an interval between the axis of the rotor cavity 3 and the axis of the shaft hole 4; a pressure limiting valve is installed on the protruding end 2 of the main body hole 5, the axis of the pressure limiting valve installation hole 5 is parallel to the axis of t...
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The invention discloses an oil pump, and the oil pump comprises a pump body, a rotor, a pressure-limiting valve and a pump cover. The pump body comprises a main body and a convex end on the main body,a stepped hole is formed in the main body in a penetrating mode, the stepped hole comprises a rotor cavity and a rotating shaft hole, the rotor cavity is close to the mounting surface of the pump body, the rotor cavity is a cylindrical cavity, and a pressure-limiting valve mounting hole; the rotor comprises an outer rotor and an inner rotor, the outer rotor is embedded in the rotor cavity, and arotating shaft is fixedly sleeved with the inner rotor; a pressure-limiting valve comprises a pressure-limiting valve steel ball, a pressure-limiting spring, and a pressure-limiting valve plug; the outer contour of the pump cover is the same as the outer contour of a pump mounting surface; and the stepped hole is used for mounting the inner rotor and the outer rotor, and an interval is arranged between the axis of the rotor cavity and the axis of the rotating shaft hole, so that the relative rotation between the inner rotor and the outer rotor is realized. By arranging of the positioning hole,accurate positioning during installation of the oil pump body of the oil pump is convenient. The oil pump body of the oil pump is simple and compact in structure.
Description
technical field [0001] The invention relates to an engine oil pump. Background technique [0002] Due to the greater market demand for light trucks, especially low-speed and high-load models, this type of engine has high requirements on the quality of the oil pump. Long-term practice has proved that in the operation of the oil pump, the three elements of lubricating oil pressure, flow rate and flow rate are not the same for each lubricating part in a strict sense. Reliable and reasonable oil supply for different parts is more important. At present, traditional oil pumps, due to the poor comprehensiveness of lubrication in the oil pump, easily cause damage to parts and failures: at the same time, the valve opening pressure of various existing oil pumps is not controlled. Since the oil pump is installed on the engine, due to the limited installation space, the oil pump is required to be small in size, light in weight and compact in structure. At present, the oil pump has a c...
Claims
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IPC IPC(8): F16N13/20
CPCF16N13/20
Inventor 史祥龙童建史忠来
Owner 南京创新机油泵制造有限公司