Configuration for the pressure supply to an automatic selector device of a change-speed gearbox

US5240093A · kind A · utility

Assignee

• Mercedes-Benz Group AG · DE

Inventors

• Gerhard Wagner · Brookline, US
• Frank Tietze · Stuttgart, DE

Key dates

• Filing date: May 28, 1992
• Grant date: Aug 31, 1993
• Expiry date: May 28, 2012

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16H2306/00
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A pressure supply to an automatic selector device of a change-speed gearbox, controls working pressure via a multi-path valve device. The working pressure is supplied either only to clutch actuators of two drive clutches located in the force path before the change-speed gearbox or to selector actuators for the actuation of selector clutches producing the force path within the change-speed gearbox. The clutch actuator of one drive clutch is subjected to a load-dependent main pressure in the latter case.