An automobile oil pump casing

Abstract

The present invention relates to the field of oil pumps, in particular to an automobile oil pump housing, which includes a lower housing, a shock absorbing support structure, an upper housing, a pre-clamping structure and a positioning installation structure, and the pre-clamping structure is connected to the lower At the side wall where the shell and the upper shell are attached, the pre-clamping structure includes a pre-clamping sealing ring, an intake pipe, an exhaust pipe, a valve, an air bag and a clamping air bag, and the top side wall of the lower shell is connected with a pre-clamping seal There is a volume cavity inside the pre-clamping sealing ring, and the clamping air bag is arranged inside the volume cavity. One end of the air intake pipe is connected to the outlet of the air bag, and the other end of the air intake pipe runs through the pre-clamping sealing ring and communicates with the clamping air bag. The automobile oil pump casing provided by the present invention has a pre-clamping structure, thereby propping up the pre-clamping sealing ring to be more closely attached to the inner wall of the surrounding plug groove, improving the sealing performance, and being able to tighten with the surrounding plug groove The friction force of the inner side wall is increased, so as to achieve the advantage of pre-clamping effect.

Description

technical field [0001] The invention relates to the field of oil pumps, in particular to an automobile oil pump casing. Background technique [0002] The use of the oil pump is to press the oil in the oil pan to the filter, so that the oil can still be reliably transported to each lubricating oil passage and the friction surface of each moving part after passing through the filter. When the engine is working, the oil pump works continuously to ensure the continuous circulation of the oil in the lubricating oil circuit. [0003] At present, the oil pump is assembled by the upper casing and the lower casing, and is assembled by screwing a plurality of bolts. During the installation process of the upper casing and the lower casing, it is fixed by hand. The lower housing is swayed and dislocated, causing the position of the screwed bolts to be easily deviated, the screwing process is cumbersome, and the sealing effect is likely to be poor when it is not tightened during the ins...

AI Technical Summary

Problems solved by technology

[0003] At present, the oil pump is assembled by the upper casing and the lower casing, which are screwed in and installed by multiple bolts. During the installation process of the upper casing and the lower casing, they are fixed by hand. Before screwing in the bolts, it is easy to cause the upper casing and the lower casing. The lower shell shakes and misplaces, causing the position of the screwed bolt to deviate easily, the screwing process is more cumbersome, and the sealing effect is prone to be poor when it is not tightened during the installation process

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