Self-lubricating structure of oil pump

An oil pump and self-lubricating technology, which is applied in the direction of pressure lubrication of the lubricating pump, can solve the problems of increased wear, scrapping of the engine, and pulling of the engine, and achieves a good protective effect

Active Publication Date: 2015-06-10
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If you work for a long time, not only the wear will increase, but also the wear debris will enter the engine, which will seriously cause the engine to scrape or even scrap the engine.

Method used

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  • Self-lubricating structure of oil pump
  • Self-lubricating structure of oil pump
  • Self-lubricating structure of oil pump

Examples

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Comparison scheme
Effect test

Embodiment Construction

[0035] The present invention will be described in detail below according to the accompanying drawings, which is a preferred embodiment among various implementations of the present invention.

[0036] The key points of this embodiment are as follows:

[0037] 1. The rotor shaft of the oil pump is in interference fit with the inner rotor, and 3 grooves are evenly distributed around the inner rotor.

[0038] 2. An annular oil storage tank is distributed radially inside the rotor shaft connected with the sprocket.

[0039] 3. The lubricating oil in the annular oil storage tank of the rotor shaft reliably pressure-lubricates the sprockets.

[0040] With reference to the accompanying drawings, the present embodiment is a rotor type oil pump, mainly composed of an oil pump body (1), an oil pump shaft (4), an inner rotor (5), an outer rotor (6) and the like. The drive of the oil pump shaft (4) and the sprocket (3) is transmitted through the cross key (2).

[0041] At present, relia...

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Abstract

The invention relates to a self-lubricating structure of an oil pump, which comprises an inner rotor, three grooves, a first oil channel and a second oil channel, wherein the inner rotor is arranged in an oil pump body and an oil pump shaft penetrates through the inner rotor; the three grooves are uniformly arranged in the periphery of the inner contact surface of the inner rotor and the oil pump shaft; one end of the second oil channel is connected with the first oil channel, the other end of the second oil channel is used for supplying oil to the three grooves, and thus lubrication is carried out between the inner rotor and the oil pump shaft. The lubrication between the oil pump rotor shaft and the inner rotor is ensured when a motor carries out large torque transferring, therefore the reliable lubrication between the oil pump rotor shaft and the inner rotor is ensured to play a load shedding effect when the motor carries out large torque transferring, and the oil pump is effectively protected from being damaged.

Description

technical field [0001] The invention relates to an oil pump of an automobile engine, in particular to a self-reliable lubricating structure of the oil pump. Background technique [0002] The oil pump is one of the core parts of the engine lubrication system and plays a decisive role in the entire engine lubrication system. It provides sufficient pressure and flow of oil for the entire engine, so that the lubricating oil circulates continuously in the lubrication system to ensure that every One friction part is adequately lubricated, protecting the associated pressure-bearing parts from damage. [0003] At present, the arrangement of the oil pump in the engine lubrication system mainly has two structures: directly driven by the crankshaft and driven by a chain. Since the oil pump directly driven by the crankshaft is arranged at the outer end of the cylinder, it not only has high requirements for sealing, but also because it is directly connected to the crankshaft. Connection...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01M1/02
Inventor 倪伟庞淑娟张茂勋张福明
Owner CHERY AUTOMOBILE CO LTD
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