Hydraulic system and automatic transmission

US7389640B2 · kind B2 · utility

Assignee

• LuK Lamellen und Kupplungsbau Beteiligungs KG · DE

Inventors

• Eric Muller · Contz-les-Bains, FR
• Reinhard Stehr · Bogen, DE
• Manfred Homm · Bühl, DE
• Michael Reuschel · Ottersweier, DE
• Norbert Indlekofer · Bühl, DE
• Andreas Englisch · Bogen, DE
• Martin Vornehm · Neu-Anspach, DE
• Christian Lauinger · Baden-Baden, DE

Key dates

• Filing date: Apr 10, 2003
• Grant date: Jun 24, 2008
• Expiry date: Jun 22, 2023

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16H2061/0037
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A hydraulic system including a multi-flow hydraulic pressure supply unit, especially a dual-flow hydraulic pressure supply unit, such as a pump, by which a volumetric flow of pressurized fluid is supplied to a hydraulic-fluid-operated device. A valve arrangement is provided either for switching between the individual pump flows or for interconnecting the individual pump flows.