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Fuel-saving fuel filter

A fuel filter and filter paper technology, applied in the mechanical field, can solve problems such as affecting the fuel efficiency of the engine, and achieve the effects of increasing the oil return rate, improving the fuel efficiency and saving the fuel.

Inactive Publication Date: 2014-05-14
上海可立洁汽车配件有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the oil return rate of the fuel-saving fuel filter with the oil return line does not change with the temperature, which affects the fuel efficiency of the engine

Method used

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  • Fuel-saving fuel filter
  • Fuel-saving fuel filter

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Embodiment 1

[0012] like figure 1 and figure 2 As shown, a fuel-saving fuel filter of the present invention includes an oil inlet pipe 1, an oil outlet pipe 2, an oil return pipe 3, a filter paper 4 and a housing (not shown in the figure), and the filter paper 4 is arranged on the Inside the casing, the oil inlet pipe 1, oil return pipe 3 and oil outlet pipe 2 are connected to the casing, the oil inlet pipe 1 and the oil return pipe 3 communicate with one side of the filter paper 4, and the oil outlet pipe 2 communicates with the other side of the filter paper 4 , wherein the housing includes a cover 5, the oil return pipe 3 is connected to the cover 5 and extends to the inside of the cover 5, and the oil return pipe 3 has a section inside the cover 5 A circular opening, the opening is fixedly connected with a valve body 6, the valve body 6 is composed of a thin-walled metal pipe 61 and a metal connecting piece 62, the thin-walled metal pipe 61 and metal The connecting piece 62 is fixed...

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PUM

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Abstract

A fuel-saving fuel filter comprises an oil inlet pipe, an oil outlet pipe, an oil return pipe, filter paper and a casing. The casing comprises a cover body, and the oil return pipe is connected to the cover body, extends to the inner side of the cover body and is provided with an opening on the inner side of the cover body. The position of the opening is fixedly connected with a valve body, the valve body is formed by a thin-wall metal pipe fitting and a metal connecting piece, the metal connecting piece is in contact and connection with the cover body, the thin-wall metal pipe fitting is communicated with the opening of the oil return pipe, and a ceramic core is arranged in an inner cavity of the thin-wall metal pipe fitting and connected with the thin-wall metal pipe fitting through a support. Different heat expansion coefficients of the ceramic core and the thin-wall metal pipe fitting are utilized; when the temperature rises, the diameter of the thin-wall metal pipe fitting is expanded, a gap between the thin-wall metal pipe fitting and the ceramic core is enlarged, and the oil returning rate is improved; when the temperature drops, the diameter of the thin-wall metal pipe fitting is recovered, the gap between the thin-wall metal pipe fitting and the ceramic core is reduced, and the oil returning rate is reduced. Fuel efficiency of an engine is improved, and fuel can be saved.

Description

Technical field: [0001] The invention relates to the field of machinery, in particular to a combustion engine, in particular to a fuel filter technology for a combustion engine, and in particular to a fuel-saving fuel filter. Background technique: [0002] Diesel engines utilize fuel-efficient fuel filters to filter out impurities from diesel fuel. Some of the fuel-saving fuel filters have oil return pipelines, and the oil return pipelines can transport the unused fuel in the fuel injection pipes to the fuel tank to save fuel. In the prior art, the oil return rate of the fuel-saving fuel filter with the oil return line does not change with temperature, which affects the fuel efficiency of the engine. Invention content: [0003] The object of the present invention is to provide a kind of oil-saving fuel oil filter, and described this kind of oil-saving fuel oil filter should solve the problem that the oil return rate of the oil-saving fuel oil filter with the oil return li...

Claims

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Application Information

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IPC IPC(8): F02M37/22
Inventor 吴萍
Owner 上海可立洁汽车配件有限公司
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