Caterpillar Inc.

Daniel S Brandt

Corey Everette Baxter

Viorel Petrariu

Jared Lee Niccum

Douglas Edward Davis

Colin A Hawkins

Michael D Klimes

Bradley J Patera

A pump for an engine includes a suction chamber, a discharge chamber, and a piston at least partly received within a relief chamber. The piston has first and second passageways provided therein. The second passageway is located closer to a face of the piston than the first passageway. The piston is movable within the relief chamber, so that the volume of the fluid transfer from the suction chamber to the discharge chamber is varied according to a pressure in the relief chamber. The first and second passageways form fluid paths between the suction chamber and the discharge chamber at a first and second pressure in the relief chamber, respectively, the first pressure being less than the second pressure.

Pump for an engine

A regulator assembly having a main body is provided. The main body includes a first passage extending from a first end and a second passage extending from the first passage towards a second end. The main body also includes a seat defined between the first passage and the second passage. The regulator assembly also includes a valve element. The valve element includes a head portion having a projection. The projection includes a plurality of apertures provided therethrough. The valve element further includes an internal channel. The regulator assembly further includes a spring element. Direct fluid communication between the plurality of apertures of the valve element and the first passage of the main body is discontinued when the head portion is in contact with the seat; and is in direct fluid communication with the first passage of the main body when the valve element is not in contact with the seat.

Regulator assembly

A self-cleaning oil filter housing is disclosed. The self-cleaning oil filter housing includes a hollow elongated body. The hollow elongated body has a central axis and a transverse axis perpendicular to the central axis. The self-cleaning oil filter housing includes a first flange provided on an outer surface of the hollow elongated body. The first flange has a first through hole along a first tangential direction. The self-cleaning oil filter housing includes a second flange provided on the outer surface of the hollow elongated body. The second flange has a second through hole along a second tangential direction. An angle between the first tangential direction and the second tangential direction is pre-determined. The self-cleaning oil filter housing includes a rib portion extending between the first flange and the second flange.

Self-cleaning oil filter housing

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Lafayette, IN, United States of America

Daniel S Brandt