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Multi-gradient superfine compound filter element and manufacturing method thereof

A composite filter element, ultra-fine technology, applied in the field of filtration, can solve the problems of long supply time, short service life, high price, etc., and achieve the effect of good filtration accuracy and extended service life

Inactive Publication Date: 2013-11-13
天津市晓川过滤设备发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] The oil filter equipment and oil filter elements used in the current equipment of the state-owned automobile industry and its matching shearing plants are all imported from Japan. The filter elements have the following defects: 1. The delivery time is long; 2. It belongs to the same precision level; 3. The price is high; 4. The service life is short

Method used

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  • Multi-gradient superfine compound filter element and manufacturing method thereof

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Embodiment Construction

[0019] The embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings; it should be noted that the embodiments are illustrative, not restrictive, and cannot limit the protection scope of the present invention.

[0020] A multi-gradient ultra-fine composite filter element is composed of two layers of inner cores 3 and 4 and two layers of outer cores 1 and 2 coaxially.

[0021] The outer core has at least one layer, the inner core has at least one layer, and after the inner core and the outer core are combined, there are at least three layers. In this embodiment, both the outer core and the inner core have two layers.

[0022] The filtering pore diameters from the outermost outer core to the innermost inner core present a decreasing gradient.

[0023] In this embodiment, the filter aperture of the outer core is 1-30 microns; the filter aperture of the inner core is 0.3-10 microns.

[0024] A multi-gradient ultra-fine co...

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Abstract

The invention relates to a multi-gradient superfine compound filter element which comprises an inner core and an outer core, wherein the inner core is used as a support skeleton of the outer core; the outer core is coaxially wound outside the inner core; and filtering apertures from the outermost outer core to the innermost inner core are in a diminishing gradient. The multi-gradient superfine compound filter element is a crystal product which is made of two different types of materials by using two different manufacturing processes. The filtering precision of the multi-gradient superfine compound filter element can be better controlled. The service life of the multi-gradient superfine compound filter element is more than twice that of an imported filter element. The imported filter element can be completely replaced by the multi-gradient superfine compound filter element, so that the national blank is filled.

Description

technical field [0001] The invention belongs to the field of filtration, and relates to an oil filter element, in particular to a multi-gradient ultrafine composite filter element and a preparation method thereof. Background technique [0002] The oil filter equipment and oil filter elements used in the current equipment of the state-owned automobile industry and its matching shearing plants are all imported from Japan. The filter elements have the following defects: 1. The delivery time is long; 2. It belongs to the same precision level; 3. The price is high; 4. The service life is short. [0003] Through searching, only one published patent document related to this patent application was found: an oil filter device (CN101991986A), which includes an oil pump, a reserve oil tank and a filter connected in sequence, and the reserve oil tank is provided with a heating system , the bottom of the reserve oil tank is provided with a drain valve. The invention also discloses an o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D39/14
Inventor 王国信
Owner 天津市晓川过滤设备发展有限公司
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