Non-return valve of a camshaft adjuster

US8776747B2 · kind B2 · utility

Assignee

• Scheaffler Technologies AG & Co. KG · DE

Inventors

• Jens Schafer · Herzogenaurach, DE
• Martin Steigerwald · Herzogenaurach, DE
• Michael Busse · Herzogenaurach, DE
• Jurgen Plate · Gerhardshofen, DE
• Andreas Wedel · Emskirchen, DE
• Olaf Boese · Nuremberg, DE
• Steffen Racklebe · Herzogenaurach, DE

Key dates

• Filing date: Jan 28, 2013
• Grant date: Jul 15, 2014
• Expiry date: Jan 28, 2033

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F01L2001/34479
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A stator (20) for a camshaft adjuster (4). The stator (20) has a ring-shaped outer part (50) for the concentric holding of a rotor (22) with vanes (34) that project in the axial direction and are arranged on the periphery around the rotor (22) and a segment (52) that projects inward in the radial direction from the ring-shaped outer part (50) for engaging between two vanes (34) of the rotor (22), in order to form, together with the two vanes (22), pressure chambers (44) of the camshaft adjuster (4). Here, the segment (52) has a cavity (70) for holding a hydraulic fluid from the pressure chambers (44).