Christopher J Krause

US Patent:

20110150670, Jun 23, 2011

Filed:

Dec 20, 2010

Appl. No.:

12/973215

Inventors:

William BREES - Bay Village OH, US
Philip GEORGE - Wooster OH, US
Michael VAN SICKLE - Akron OH, US
Christopher KRAUSE - Ashland OH, US
Jeffrey HEMPHILL - Copley OH, US
Chad MULLEN - Wooster OH, US

Assignee:

SCHAEFFLER TECHNOLOGIES GMBH & CO. KG - Herzogenaurach

International Classification:

F04B 49/02
B23P 17/04

US Classification:

417214, 29428

Abstract:

A pump for a transmission, including: a housing with a pneumatic port; and a gear for engaging with a pump hub for a torque converter, wherein the pneumatic port is for introducing compressed air into the housing to restrict rotation of the gear. In an example embodiment, restricting rotation of the gear is to prevent rotation of the gear when the gear is interfaced with the pump hub to rotationally lock the gear with the pump hub. A pump for a transmission, including: a housing; a gear for engaging with a pump hub for a torque converter; and, an element for enabling rotation of the gear in a first rotational direction and locking the gear with respect to rotation in a second rotational direction, opposite the first rotational direction. In an example embodiment the element includes a one-way clutch.