Friction clutch assembly with selective lubrication during the friction phase

US4753332A · kind A · utility

Assignee

• Zahnradfabrik Friedrichshafen AG · DE

Inventors

• Gerold Bieber · Tettnang, DE
• Otto Ebner · Friedrichshafen, DE

Key dates

• Filing date: Oct 15, 1986
• Grant date: Jun 28, 1988
• Expiry date: Oct 15, 2006

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16D2048/0203
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A start and shift clutch arrangement for motor vehicles with a disk clutch which during the sliding or friction generating phase is supplied with lubricating and cooling oil, and which runs dry when fully engaged or disengaged. The disk clutch is flooded in the area of the outer disks, whereby the maximum filling is limited by a first standpipe, and rapid emptying takes place via a second standpipe in conjunction with a control valve. Particularly advantageous is a self-contained lubricating system, which fills the clutch space during the sliding phase via an oil reservoir and an accumulator by a timed solenoid valve, utilizing compressed air. The accumulator equipped with a piston effects thereby alternately its own filling, and that of the clutch space.