Oil filter fixing structure

Details Oil filter fixing structure Oil filter fixing structure

1999-02-18

2000-08-15

McMahon, Marguerite

Internal-combustion engines

Lubricators

Crankcase, pressure control

123196R, F01M 100

Patent

active

061019968

ABSTRACT:
An oil filter unit comprising a housing (4) and a filter element (14) accommodated therein is fitted to an engine (1) via a bracket (3) having a cylindrical holder (5). The housing (4) is secured to the holder (5) by screwing a male screw (19) on its outer circumference to a female screw (17) formed in the inner circumference of the holder (5). A first cut-out (24) is formed across the female screw (17) and a second cut-out (23) is formed across the male screw (19). When these cut-outs (24, 23) meet together, they form a drain passage which drains the oil in the housing (4) to outside. With this construction, the oil in the housing is drained via a predetermined path and prevented from scattering around, when the filter unit is removed from the engine (1).

REFERENCES:
patent: 4151823 (1979-05-01), Grosse et al.
patent: 5374355 (1994-12-01), Habiger et al.
patent: 5431588 (1995-07-01), Kucik
patent: 5698098 (1997-12-01), Ernst et al.
patent: 5888384 (1999-03-01), Wiederhold et al.

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