Drive unit including a motor and a retarder

US6561324B2 · kind B2 · utility

Assignee

• Voith Turbo GmbH & Co. KG · DE

Inventors

• Jurgen Friedrich · Kupferberg, DE
• Klaus Vogelsang · Crailsheim, DE
• Peter Heilinger · Crailsheim, DE
• Peter Rose · Heidenheim, DE

Key dates

• Filing date: Oct 1, 2001
• Grant date: May 13, 2003
• Expiry date: Oct 1, 2021

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F01P2060/06
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A drive unit includes a motor, a hydrodynamic retarder, at least one pump, at least one feed line for feeding operating medium to the retarder, and at least one bypass line which conveys operating medium past the retarder. A device for directing the flow of operating medium is arranged upstream of the retarder in the direction of flow. The device can feed the operating medium through the retarder via the feed line, feed the operating medium past the retarder via a bypass line, or divide the total flow of operating medium into at least two predetermined parts. A first predetermined part of the operating medium is fed through the retarder via the feed line. A second predetermined part of the operating medium is conveyed past the retarder via the bypass line.