Patent · US Active

End position detection of a variable hydraulic machine

US10267341B2 · kind B2 · utility

0Cited by

1References

20Claims

0Family size

Assignee

DANFOSS POWER SOLUTIONS GMBH & CO. OHG · DE

Inventors

Suenje Marsch · Ehndorf, DE
Rolf Rathke · Kiel, DE
Stephan Kaiser · Regensburg, DE
Edat Kaya · Hamburg, DE

Key dates

Filing date	Mar 22, 2016
Grant date	Apr 23, 2019
Priority date	—
Expiry date	May 1, 2037

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04B49/06
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

The invention relates to a method and a device for determining of at least one end position of a displacement element of an adjustable hydraulic machine, in particular of the axial piston type, shiftable or displaceable between two ends position a by means of a displacement unit between a first end position and a second end position. According to the invention the determination of having reached an end position of displacement takes place by means of a measurement circuit, whose electrical characteristics are changed jumpily when an end position is reached. This is done by connecting a partial branch of the measuring circuit with earth, when a moveable element comes into electric contact with a limit stop assigned to the corresponding end position.

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