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Guiding device of reversible filter element

A guide device and filter element technology, which is applied in the field of oil filter and filter element guide device of oil filter, can solve the problems of difficult automatic assembly of oil filter, defective filter, manual filter element guide device, etc.

Inactive Publication Date: 2004-11-03
ARVIN TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the element guide is placed upside down in the canister, the filter element assembly will not fit properly in the canister, resulting in a defective filter
Because the element guide must be positioned face-up, automated assembly of oil filters using such element guides is difficult and / or costly to automate efficiently
Next, to ensure the correct setting of the filter guide, the filter guide is usually manually inserted into the barrel, resulting in a costly and inefficient assembly process
Additionally, existing filter guides are custom designed, sized and manufactured to allow the circular ridges to fit into the recesses of the end cap, which adds to manufacturing costs
Also, existing filter guides have inconsistent spring rates or load deflection characteristics, resulting in incompatibility between different filters

Method used

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  • Guiding device of reversible filter element
  • Guiding device of reversible filter element
  • Guiding device of reversible filter element

Examples

Experimental program
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Embodiment Construction

[0022] The specific embodiments disclosed below are not intended to be exhaustive or to limit the precise forms of the invention disclosed in the following specification. Rather, these examples were chosen and described so that those skilled in the art can utilize the teachings therein.

[0023] refer to figure 1 , the fluid filter assembly 10 generally includes a cartridge 12 and a cartridge assembly 30 . The barrel 12 has a closed end 14, an open end 16 and a cylindrical barrel wall 26 and a cavity 28 formed thereby. Located at the open end 16 is a bottom assembly 24 including a central fluid outlet 18 and a plurality of fluid inlets 20 . The central fluid outlet 18 is typically internally threaded to thread the fluid filter assembly 10 onto a corresponding hollow screw (not shown) of an engine (not shown). Bottom assembly 24 also typically includes seat pad 22 that seals fluid filter assembly 10 to the engine (not shown) and check valve 29 that prevents backflow of fluid...

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PUM

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Abstract

A fluid filter assembly including a canister having a closed end and an open end; a filter element assembly disposed within the canister and having a first end adjacent the closed end of the canister and a second end adjacent the open end of the canister; and a reversible element guide disposed within the canister between the closed end and the first end of the filter element assembly. The reversible element guide has a first side and a second side, the first side shaped substantially the same as the second side. The reversible element guide is positioned in either a first position, wherein the first side bears against the closed end of the canister or a second position, wherein the second side bears against the closed end of the canister. The reversible element guide may be a wave spring having a ring shape and a plurality of undulations.

Description

technical field [0001] This invention relates to fluid filters, and more particularly to oil filters. More specifically, the present invention relates to element guides for oil filters. Background technique [0002] Filters such as lube oil filters, air filters and fuel filters are often included in an internal combustion system to filter out impurities that can cause damage to the engine's moving parts. Oil filters generally consist of a cylinder and a filter element assembly. The cylindrical barrel includes a domed closed end and an opposite open end. The open end is connected to an end plate having a central fluid outlet and a plurality of fluid inlets. The filter element assembly is located within the cartridge and typically consists of a cylindrical center tube, a filter element positioned around the center tube, and a pair of end caps located at each end of the filter element. [0003] Oil first enters the barrel from the engine through the fluid inlet and circulat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01M11/03B01D27/08B01D35/02F02M37/22
CPCB01D27/08
Inventor 兰迪·C.·弗赖
Owner ARVIN TECH INC