OIL PURIFICATION FILTER Russian patent published in 2005 - IPC

FIELD: production of devices for a branch of automotive industry.

SUBSTANCE: the invention is intended for filtration and is dealt with a branch of automotive industry, in particular, with production of devices for a filtration of oils in automobile and transport engines. The filter includes a body, a cover with a booster linked by curling, a filtering element, a drainage-proof valve and a relief valve, a spring. The relief valve is located in the lower part of the filtering element at its outlet into for an output in the main trunk of the engine. One surface of the central part of the drainage-proof valve contacts to the booster and the other surface - with a ring of the relief valve and ensures a tightening between them by pressing a spring of the relief valve. The design of the relief valve prevents pollutants washing-off from the filtering element at its activation, and the change of the design of the drainage-proof valve considerably simplifies the design of the relief valve, and also reduces metal consumption, labor input and a number of component parts.

EFFECT: the invention allows to simplify the design of the relief valve, to reduces metal consumption, labor input and a number of component parts.

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