Hydrodynamic double brake

US4194600A · kind A · utility

Assignee

• Voith Getriebe KG · DE

Inventors

• Waldemar Armasow
• Hans Lindenthal · Heidenheim, DE

Key dates

• Filing date: Dec 18, 1978
• Grant date: Mar 25, 1980
• Expiry date: Dec 18, 1998

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16D57/04
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A hydrodynamic double brake includes two working chambers, each defined between a respective stator bucket wheel and a respective rotor bucket wheel. Each of the bucket wheels including buckets that extend into the respective working chambers and the bucket wheel buckets all are oriented at the same tilt angle with respect to the axis of the brake. An inlet line enters the rotor bucket wheels and then branches into the respective working chambers. Outlet ducts exit from each of the working chambers. A shell is defined around the bucket wheels and the brake and includes a valve arrangement which selectively opens the outlet ducts of one working chamber while closing the outlet ducts of the other working chamber, and vice versa. Fluid pressure responsive elements extend into the working chambers so that fluid in the one working chamber intended to be the active chamber impinges on the fluid responsive elements and thereby moves both of the valve arrangements to open the outlet ducts of only one of the working chambers. An appropriate separating wall arrangement is associated with the shell for reducing leakage between the utlet ducts of the two working chambers. The valve arrangement…