Hydrostatic drive units

US4545203A · kind A · utility

Assignee

• Linde GmbH · DE

Inventors

• Horst Deininger · Alzenau, DE
• Burkhard Stuermer · Aschaffenburg, DE

Key dates

• Filing date: Jul 28, 1983
• Grant date: Oct 8, 1985
• Expiry date: Jul 28, 2003

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T137/0947
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

An hydrostatic drive unit for driving a motor vehicle is provided including a pump, a hydraulic motor, connecting means between said pump and motor, a branch line connected to the connecting means, a shut-off means located in said connecting means, measuring means in said shut-off means for measuring the horizontal forces arising in the direction of the longitudinal axis of the vehicle, said shut-off means acting on the hydrostatic drive unit, said measuring means including a mass capable of being displaced in the direction of the longitudinal axis of the vehicle against a forcible stop, resilient means acting on said mass to position the same normally in a center position capable of movement in two directions on the longitudinal axis of the vehicle and in working connection with the shut-off element whereby during the exertion of force upon the forcible stop, said mass acts directly or indirectly on said shut-off element to control fluid flow in said connecting means.