Pressure filter device

A filter device and pressure technology, applied in the direction of filter circuit, filter separation, membrane filter, etc., can solve the problem of time-consuming decomposition, and achieve the effect of cost saving
CN102648034AInactive Publication Date: 2012-08-22FILTRATION GRP GMBH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
FILTRATION GRP GMBH
Publication Date
2012-08-22
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a pressure filter device (1), especially a hydraulic filter device, comprising a filter housing (2) provided with a filter housing pot (3) and a filter housing cover (4) that can be connected in a pressure-tight manner to said pot, and at least one filter element (5) arranged in the filter housing (2). According to the invention, a vent line (6) fixed to the filter housing pot (3) connects a dirty-side gas collection region (7) located directly beneath the filter housing cover (4) to a (hydraulic liquid) tank (8), or a vent line (6) fixed to the filter element (5) and guided through an upper end disk (11) of same connects a dirty-side gas collection region (7) located directly beneath the filter housing cover (4) to a (hydraulic liquid) tank (8) via a clean side (13) of the filter element (5).
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Description

technical field

[0001] The invention relates to a pressure filter device, in particular to a hydraulic filter device according to the preamble of claim 1 . Background technique

[0002] In known pressure filter devices, this is often the case, in the filter housing of which the air is separated while collecting directly below the filter housing cover. If the air is not expelled, it grows in volume thereby reducing the available filter space for the liquid being filtered. Therefore, if the air collected, for example in the filter element placed upright, is not expelled, no air flow can pass through an area which expands continuously from the top, and the filter cannot therefore be used. In addition, in the case of a bypass, it may occur that an air flow, in particular in the case of a bypass, provides an insufficient amount of oil to the system, and may thus lead to damage to the shaft. In particular in open systems, a large amount of air is introduced and divided, for exam...

Claims

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