Leakage-free energy-saving oil pump

Abstract

The invention relates to an oil pump of an engine, in particular to a leakage-free energy-saving oil pump capable of satisfying the requirement of using a belt transmission in case of insufficient space of the engine. The leakage-free energy-saving oil pump comprises a pump cover, a pump body, an outer rotor, an inner rotor, a rotor shaft and a belt wheel, and is characterized in that an oil baffle disc is additionally arranged at the inner side of the rotor shaft where the belt wheel is installed; the oil baffle disc is sleeved on the rotor shaft and is fixedly arranged on the belt wheel, and is fastened with an annular collecting groove on the pump body; both the pump body and the pump cover are provided with oil returning holes which are communicated with the annular collecting groove; and the oil returning hole of the pump cover is communicated with an oil tank. The leakage-free energy-saving oil pump has the advantages that the problem of oil leakage of the oil pump is thoroughly solved because the bowl-shaped oil baffle disc is skilfully matched with the annular collecting groove on the pump body as well as the oil returning holes on the pump body and the pump cover, and meanwhile, the structure that a mounting hole on the bowl-shaped oil baffle disc is fixed on the belt wheel through a screw; in addition, the structure also provides a new way to design the oil pump; the leakage-free energy-saving oil pump not only saves the oil but remarkably prolongs the service life.

Description

technical field [0001] The invention relates to an engine oil pump, in particular to a non-leakage and energy-saving oil pump driven by a belt to meet the shortage of engine space. Background technique [0002] In the past, the oil pump, whether it is a gear pump or a rotor pump, is a component that provides engine lubricating oil, and there is a long-standing problem of oil leakage from the rotating part of the oil pump shaft. If there is no oil leakage, the oil pump shaft cannot be lubricated. The hidden danger of the oil pump holding the shaft. In order to prevent the leaked engine oil from polluting the engine, under normal circumstances, the engine oil pump is made into a built-in type, so that the leaked engine oil flows back into the engine oil tank; in another case, the engine oil pump is made into an external structure, and its transmission mode adopts gear transmission Or sprocket drive, at the same time, there is a cover to cover the gear drive to prevent the oil...

AI Technical Summary

Problems solved by technology

[0002] In the past, the oil pump, whether it is a gear pump or a rotor pump, is a component that provides engine lubricating oil, and there is a long-standing problem of oil leakage from the rotating part of the oil pump shaft. If there is no oil leakage, the oil pump shaft cannot be lubricated. Hidden danger of oil pump holding shaft

In order to prevent the leaked engine oil from polluting the engine, under normal circumstances, the engine oil pump is made into a built-in type, so that the leaked engine oil flows back into the engine oil tank; in another case, the engine oil pump is made into an external structure, and its transmission mode adopts gear transmission Or sprocket drive, at the same time, there is a cover to cover the gear drive to prevent the oil from flowing out, but this structure cannot be driven by a belt, because the oil leaked from the oil pump will pollute the belt, causing the belt to slip and affecting the oil pump. If the oil pump oil seal method is used, due to the lubrication requirements of the oil seal lip, some oil will inevitably leak out, and the rubber of the oil seal is aging, which will affect the service life of the oil pump

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