Transmission for motor vehicle

US6129188A · kind A · utility

Assignee

• LuK Getriebe-Systeme GmbH · DE

Inventors

• Oswald Friedmann · Lichtenau, DE
• Bernhard Walter · Oberkirch, DE
• Manfred Homm · Bühl, DE
• Michael Reuschel · Ottersweier, DE

Key dates

• Filing date: Jun 23, 1998
• Grant date: Oct 10, 2000
• Expiry date: Jun 23, 2018

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16H2061/0046
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A transmission for use in the power train of a motor vehicle has a rotary first component (such as a shaft), a second component which may but need not be rotatable, a fluid-conveying conduit having a first end portion extending into a first socket provided in the first component and a second end portion extending into a socket of the second component, a split-ring piston packing located in an external groove of the first end portion, and an O-ring received in an external groove of the second end portion. The O-ring prevents the conduit and the second component from rotating relative to each other. A passage which is defined by the two components and the conduit can receive a stream of pressurized hydraulic fluid from a pump by way of pipes wherein the flow of fluid is controlled by several valves including a manually operated slide valve, at least one preferably adjustable pressure regulating valve, at least one preferably adjustable safety valve, and adjuster for the adjustable valve or valves; such adjuster can employ one or more signal-responsive control valves.