Double filtering oil filter for internal combustion engines of m

Details Double filtering oil filter for internal combustion engines of m Double filtering oil filter for internal combustion engines of m

1989-09-07

1991-08-20

Jones, W. Gary

Liquid purification or separation

Plural distinct separators

Filters

210438, 210440, 210444, 210450, 210451, 210488, 2104931, 2104972, 210DIG13, 210DIG17, B01D 2706

Patent

active

050412213

ABSTRACT:
A double filtering filter for lubricating oil of internal combustion engines of motor vehicles comprises a cylindrical housing containing a rough filtering cartridge and a superimposed fine filtering cartridge, both in form of cylindrical sleeves and fitted over a tube extending within the rough filtering cartridge from a cover of said housing. A cover is provided with a plurality of peripheral inlet holes for the oil to be filtered, an axial hole for the outlet of the roughly filtered lubricant, and an intermediate radial hole for the outlet of the finely filtered lubricant. The filter further comprises an annular seal gasket on the tube between said two cartridges, and a pair of annular seal gaskets on the cover, one gasket being positioned outside said plurality of peripheral holes for the inlet of the lubricating oil, and the other gasket being positioned between said eccentric outlet hole and said axial outlet hole. The fine filtering cartridge comprises a continuous strip of disks of filter paper, each disk providing for a central hole and radial lobes, said disks being accordion pleated with the lobes of a disk offset in respect of the lobes of an adjoining disk, and sandwiched between two rigid rings also provided with aligned central holes.

REFERENCES:
patent: 2359475 (1944-10-01), Gauthier
patent: 2548584 (1951-04-01), Briggs
patent: 2748949 (1956-06-01), James
patent: 2995253 (1961-08-01), Belgarde et al.
patent: 3064820 (1962-11-01), Gillick, Jr. et al.
patent: 4632755 (1986-12-01), DeGaffenried

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