Rotor blade pitch adjusting device and turbomachine containing the same

US8899929B2 · kind B2 · utility

Assignee

• Antiebolaget SKF · SE

Inventors

• Thomas Wilhelm Fucks · Schweinfurt, DE
• Jean Pierre Grattler · Langon, FR
• Laurent Benoit · Paris, FR

Key dates

• Filing date: May 27, 2011
• Grant date: Dec 2, 2014
• Expiry date: May 19, 2033

Classification

• Technology area (CPC —): General

Abstract

An adjusting device is provided for pivoting blades of a rotor via a transmission that is actuatable by a co-rotating, axially-displaceable actuating shaft. The adjusting device includes a roller bearing having a first side or ring that is attachable to the actuating shaft and a second side or ring connected with an actuating body that is non-rotatably supported in a support body. The adjusting device further includes a screw drive that axially displaces the actuating body within the support body to thereby linearly actuate the transmission.