Liquid purification or separation – Flow – fluid pressure or material level – responsive – Fluid pressure responsive by-pass
Patent
1988-07-15
1989-08-01
Cintins, Ivars
Liquid purification or separation
Flow, fluid pressure or material level, responsive
Fluid pressure responsive by-pass
210136, 210440, 210DIG17, B01D 2710
Patent
active
048531189
ABSTRACT:
A liquid filter for an internal combustion engine includes a filter cartridge housed within an outer shell closed by an end member. The end member provides a central outlet opening and circumferentially spaced inlet openings circumscribing the outlet opening and spaced radially therefrom. An annular fixture is mounted on the end closure between the outlet opening and the inlet openings and supports a circumferentially extending seal. The seal includes a central portion which seals between the fixture and the cartridge, and also includes a first radially projecting deflectable portion which prevents drainback of liquid filtrate through the inlet openings upon engine shutoff, and also includes a second deflectable portion which controls bypass flow. The fixture further includes axially projecting members which are engaged by the filter cartridge to hold the latter in fluid-tight engagement with the valve member.
REFERENCES:
patent: 3231089 (1966-01-01), Thornton
patent: 3567023 (1971-03-01), Buckman et al.
patent: 4127484 (1978-11-01), Walulik et al.
patent: 4464263 (1984-08-01), Brownell
patent: 4629474 (1986-12-01), Thornton
Borgia Joseph A.
Brownell Peter
Gabrielson Robert
Allied-Signal Inc.
Antonis William N.
Cintins Ivars
Decker Ken C.
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