Patent · US Expired

Control device for a variable displacement hydrostatic machine

US5046926A · kind A · utility

9Cited by

7References

15Claims

0Family size

Assignee

Linde GmbH · DE

Inventors

Horst Deininger · Alzenau, DE
Gustav Kleineisel · Mainaschaff, DE
Rudolf Richter · Hannover, DE

Key dates

Filing date	Jul 30, 1990
Grant date	Sep 10, 1991
Priority date	—
Expiry date	Jul 30, 2010

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04B49/08
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A control device for a variable displacement hydrostatic machine having a stroke-volume regulator which is responsive to an actuating pressure. The control device includes a booster pump. The delivery pressure of the machine is the actuating pressure unless the delivery pressure of the machine is insufficient in which case the actuating pressure is a feed pressure produced by the booster pump. The control device includes a plurality of delivery-pressure lines and a proportioning pressure regulator having an outlet pressure which is proportionally reduced relative to the intake pressure connected between each delivery-pressure line and the stroke-volume regulator.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.