Arrangement of a volume accumulator

US9206713B2 · kind B2 · utility

Assignee

• Schaeffler 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 22, 2013
• Grant date: Dec 8, 2015
• Expiry date: Mar 27, 2033

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F01L2001/34446
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A stator (20) for a camshaft adjuster (4). The stator (20) has an outer part (50) for concentrically holding a rotor (22) with vanes (34) arranged around the rotor (22) and a segment (52) projecting from the 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).