Diesel roller pump for passenger vehicles

Abstract

The invention provides a diesel roller pump for passenger vehicles, and belongs to the technical field of roller pumps. The diesel roller pump for the passenger vehicles comprises a housing, a motor component and a pump body component; a pump cavity is formed in an oil discharge plate of the pump body component, a planet wheel with an armature shaft connected to the motor component is arranged inthe pump cavity, and the oil discharge plate is of an integrated structure, so that the processing is convenient, product gaps are effectively avoided, the precision consistency is high, friction andnoise problems are prevented, and the service life is prolonged; in addition, a plurality of roller grooves with rollers are arranged on the edge of the planet wheel, grooves are formed in each rollergroove and in the front end surface of the back end surface of the planet wheel, at the same time, in the movement direction of the planet wheel, the grooves are formed in the front sides of the rollers in the current roller grooves, volume cavities in the roller grooves and in two radial sides of the rollers communicate through the grooves, so that the pressure in the two volume cavities is balanced, the oil supply performance is improved, noise is eliminated, the service life is prolonged, and the needs of the passenger vehicles are met.

Description

technical field [0001] The invention relates to the technical field of roller pumps, in particular to a diesel roller pump for passenger cars. Background technique [0002] In the automobile fuel supply system, the electric fuel pump is a key part, and the rationality of its structure directly determines the performance of the automobile engine. And because diesel oil has a high temperature (up to 100°C or more) when it works, and there is a large viscosity under low temperature conditions, and even appears to be gelatinous, therefore, a diesel roller pump is used to solve the problem of traditional turbo fuel pumps at low temperatures. It is difficult to meet the use requirements of diesel oil supply under certain conditions. [0003] However, in the roller pumps currently on the market, one end of the housing is provided with a pump body part, and the other end is provided with a structure such as a motor part connected to the pump body part. Including oil inlet plate, o...

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned problems in the prior art, it is now intended to provide a diesel roller pump for passenger cars, which is provided with an integrated oil outlet plate, and the front and back sides of the roller groove of the planetary wheel are provided with concave holes. Groove, the groove is set between two adjacent rollers and is located on the front side of the current roller along the rotation direction of the planetary wheel, so that the inner and outer volume chambers where the rollers are located can be communicated through the grooves , so as to balance the pressure of the inner and outer volume chambers, so that the rollers can better cling to the inner surface of the oil plate, increase the oil supply capacity, avoid the generation of noise, and make the product easier to process, reducing the processing time. cost, and effectively avoid the problems of mutual friction to generate noise and shorten the service life, which can better meet the needs of passenger cars

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