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Filter device

A filter device and filter technology, which is applied in the directions of filtration and separation, transmission parts, separation methods, etc., can solve the problems of increasing filter components and large-scale oil filters, and achieve the effect of inhibiting clogging

Inactive Publication Date: 2010-09-15
JATCO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is a problem of increasing the size of the filter member and increasing the size of the oil filter.

Method used

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Embodiment Construction

[0027] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0028] An oil filter (filter device) 10 according to an embodiment of the present invention is installed in an oil suction circuit of a transmission that changes the rotational speed of an engine mounted on a vehicle.

[0029] figure 1 It is an explanatory diagram of the oil suction circuit 1 to which the oil filter according to the embodiment of the present invention is applied.

[0030] Oil (or fluid) as a working fluid is stored in the oil pan 20 of the transmission. An oil pump 40 driven by an engine or the like sucks oil stored in an oil pan, applies a predetermined oil pressure to the sucked oil, and supplies it to an unillustrated hydraulic circuit through an oil passage 30 . Thereafter, the oil supplied to the hydraulic circuit is discharged to the oil pan 20 .

[0031] The oil passage 30 is provided with an oil filter 10 . The oil filter 10 includes a filte...

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PUM

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Abstract

The invention provides a filter device capable of preventing increase of working fluid negative pressure due to blockage. An oil filter (the filter device) (10) makes the working fluid flowing from an inlet portion (10a) flow out towards an outlet portion (10b) through a filter for catching the impurities, wherein the filter (11) comprises a first filter (101) composed of non-retractable raw material and a second filter (102) composed of retractable raw material.

Description

technical field [0001] The present invention relates to a filter device used in an oil filter such as a transmission of an automobile, and more particularly to a filter device capable of preventing pressure increase of a working fluid due to clogging or the like. Background technique [0002] Conventionally, in a transmission mounted on a vehicle, an oil filter is installed as a filtering device in order to prevent impurities contained in a working fluid from being mixed into a pump and a hydraulic circuit. [0003] The oil filter needs to be able to capture inclusions as much as possible, and prevent the flow rate from being reduced due to clogging and the increase in the suction pressure of the oil caused. [0004] As such an oil filter, the following oil filter is disclosed, that is, a first filter member with a fine mesh and a second filter member with a coarse mesh are arranged in parallel, and a movable partition is provided so that the inflow side of the oil filter W...

Claims

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Application Information

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IPC IPC(8): B01D35/04
CPCB01D35/02F16H57/0402
Inventor 稻垣竜一萩原孝则胜又哲史
Owner JATCO LTD