Patent · US Expired

Axial piston machine of the swashplate or bent axis type having slot control and pressure balancing passages

US4920856A · kind A · utility

20Cited by

6References

13Claims

0Family size

Assignee

Brueninghaus Hydraulik GmbH · DE

Inventors

Heinz Berthold · Sankt Ingbert, DE
Josef Beck · Haigerloch, DE
Manfred Lotter · Neu-Ulm, DE

Key dates

Filing date	Jul 19, 1988
Grant date	May 1, 1990
Priority date	—
Expiry date	Jul 19, 2008

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF05C2201/0478
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

In an axial piston machine of the swashplate or bent axis type having slot control and a pressure balancing passage at the inlet end of the high pressure (HP) control slot, erosion caused by the jet of the pressure balancing passage is prevented by providing at the inlet end of the HP-control slot an interference jet passage starting from the high pressure whose opening is arranged so that the directions of flow of the pressure balancing passage and the outlet of the interference jet passage intersect.

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