Daniel Te Moy

US Patent:

62865455, Sep 11, 2001

Filed:

Feb 2, 2000

Appl. No.:

9/496373

Inventors:

Daniel Moy - West Bloomfield MI
David Kaminski - Lake Orion MI
John E Saarinen - Washington MI

Assignee:

DaimlerChrysler Corporation - Auburn Hills MI
TRW Inc - Sterling Heights MI

International Classification:

F16K 2128

US Classification:

137574

Abstract:

A reservoir for power steering fluid includes an upright housing that forms an upper interior space for storage of a reserve fluid supply, and a lower interior space containing a fluid filter. Fluid connectors are provided for causing fluid to flow in a circumferential swirling pattern as it moves through the filter, such that the flowing fluid has a relatively long residence time in the lower portion of the reservoir for achievement of an effective cooling action. The fluid filter is connected in a return line form the power steering unit to the associated pump, so that the filter exerts a back pressure on fluid flowing from the power steering unit to the filter.

US Patent:

62202839, Apr 24, 2001

Filed:

Feb 16, 2000

Appl. No.:

9/504701

Inventors:

John E Saarinen - Washington MI
Lacramioara Romagnoli - Troy MI
Daniel Moy - West Bloomfield MI

Assignee:

DaimlerChrysler Corporation - Auburn Hills MI
TRW Inc. - Sterling Heights MI

International Classification:

E03B 318

US Classification:

137550

Abstract:

A reservoir for power steering fluid includes an upright housing that forms an upper interior space for storage of a reserve fluid supply, and a lower interior space containing a fluid filter. * Fluid connectors are provided** for causing fluid to flow in a circumferential swirling pattern as it moves through the filter, such that the flowing fluid has a relatively long residence time in the lower portion of the reservoir for achievement of an effective cooling action. The fluid filter is connected in a return line from the power steering unit to the associated pump, so that filtered liquid is supplied to the pump. The fluid filter is preferably a flat disk-like filter unit located in a horizontal plane between the inlet fluid connector and the outlet fluid connector. *The upper interior space and lower interior space containing a fluid filter are separated by a frusto conical partition. Residence of the fluid above the frusto conical partition allows air entrained in the fluid to escape.