Lynn Krawczyk

US Patent:

20130175135, Jul 11, 2013

Filed:

Jan 6, 2012

Appl. No.:

13/345141

Inventors:

David Juhassz - Sterling Heights MI, US
Lynn M. Krawczyk - Plymouth MI, US

Assignee:

GM GLOBAL TECHNOLOGY OPERATIONS LLC - Detroit MI

International Classification:

F16D 25/00
F16K 31/12

US Classification:

192 8501, 251 12, 13762548

Abstract:

A fluid retention assembly for a vehicle transmission has a valve body, a first member, a second member, and a biasing member. The valve body has a first portion, a second portion, a third portion, and defines a central bore having a sealing portion. The first member is disposed at least partially in the central bore of the valve body and includes a shaft portion and a sealing portion. The second member defines a plurality of fluid apertures. The second member is attached to the shaft portion of the first member opposite the sealing portion. The biasing member is disposed at least partially in the central bore of the valve body coaxial with the first member and has a biasing force that biases the sealing portion of the first member against the sealing portion of the valve body.