Fluid coupling for helicopter propeller

US4970860A · kind A · utility

Assignee

• Porsche AG · DE

Inventors

• Hans Mezger · Freiberg, DE
• Dieter Zaremba · Mühlacker, DE

Key dates

• Filing date: Dec 19, 1988
• Grant date: Nov 20, 1990
• Expiry date: Dec 19, 2008

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B64D35/00
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A disengageable connection between an internal combustion engine and a propeller which serves for the drive of a gyroplane. The disengageable connection is a fluid coupling which includes a controllable oil circulatory system. The fluid coupling is supplied with oil by way of the oil circulatory system during the operation of the internal combustion engine. By contrast, the oil escapes out of the fluid coupling when the propeller operates under auto-rotation.