US 2004/0168959 A1 · Auxiliary filtration system and filtering method

Abstract

An auxiliary oil filtration system and method for filtering oil in an engine is provided. The auxiliary oil filtration system consists of an auxiliary filtration device, an integral oil transfer pump controlled by an electric motor and that is in electrical communication with an electrical control unit, an electronic pressure sensor, fluid conductors, and means for connecting hardware. The auxiliary filtration device is separate from the primary engine lubrication system, and includes a media supply reel having a roll of filtering media thereon which is moveable to a take-up reel. A media indexing system advances the media supply reel as the filtering media becomes plugged. An electronic pressure sensor dictates the advancement of the filtering media when a pre-determined differential pressure across the filtering media is attained. When all of the filtering media has been transferred from the supply reel to the take-up reel, the cartridge is replaced.

Claims26

Dependent claims

An auxiliary oil filter for a vehicle having an engine lubrication system, the auxiliary oil filter comprising:

a housing having an inlet port for receiving engine oil separately from the engine lubrication system, and an outlet port for returning filtered oil to the engine, the housing defining an inlet cavity in fluid communication with the inlet port, and an outlet cavity in fluid communication with the outlet port;
a seal disposed within the housing for sealing engine oil substantially within the inlet and outlet cavities;
a media supply reel disposed within the housing and having a roll of filtering media thereon;
a take-up reel disposed within the housing and configured to receive the filtering media from the supply reel;
and
a media indexing system operative to rotate the take-up reel to receive used filtering media.

3 more elements

Dependencies are inferred from the claim text.

Auxiliary filtration system and filtering method

Life of this patent

Auxiliary filtration system and filtering method

Life of this patent

Abstract

Claims26