Hydrodynamic clutch device

US7984800B2 · kind B2 · utility

Assignee

• ZF FRIEDRICHSHAFEN AG · DE

Inventors

• Peter Frey · Hofheim, DE
• Roland Baumann · Dittelbrunn, DE
• Michael Greulich · Schweinfurt, DE
• Georg Mencher · Grafenrheinfeld, DE
• Bernd Reinhardt · Osnabrück, DE
• Peter E. Hammer · Schweinfurt, DE
• Patrick Rediger · Schweinfurt, DE

Key dates

• Filing date: Mar 26, 2008
• Grant date: Jul 26, 2011
• Expiry date: Feb 2, 2030

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16H2045/0284
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A hydrodynamic clutch includes a hydrodynamic circuit formed by at least a pump wheel and a turbine wheel in a clutch housing with a drive-side housing wall extending to the axis of rotation, and a bridging clutch with a piston capable of shifting axially relative to the drive-side housing wall. The turbine wheel is connected to a hub, which is connected for rotation in common to a takeoff, and is axially supported between the hydrodynamic circuit and a flow guide element, which is supported between the hub and the drive-side housing wall, and has first and second flow passages which are axially offset from each other. The flow guide element has a drive-side end with an axial bearing area which can be moved into axial contact with an axial bearing, which is either an axial contact surface on the drive-side housing wall or is assigned to the drive-side housing wall.