Patent · US Active

Axial piston pump for a hydrostatic propulsion drive, hydrostatic propulsion drive with the axial piston pump, and method for control

US11353110B2 · kind B2 · utility

0Cited by

5References

12Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Frank Bender · Drolshagen, DE
Jochen Mayer · Giengen an der Brenz, DE
Steffen Mutschler · Neu-Ulm, DE
Ulrich Lenzgeiger · Dinkelscherben, DE

Key dates

Filing date	Apr 13, 2020
Grant date	Jun 7, 2022
Priority date	—
Expiry date	Oct 27, 2040

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16H61/47
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A hydrostatic axial piston pump has adjustable swept volume and is configured for fluidic connection to a hydraulic motor of a hydrostatic propulsion drive in a hydraulic circuit. The hydrostatic axial piston pump includes an adjusting unit configured to adjust the swept volume. The adjusting unit has an actuating cylinder with a first actuating pressure chamber, in which a first actuating pressure can be set via a first pressure reducing valve. The first actuating pressure is dependent on a first current at a first electromagnet of the first pressure reducing valve. An electronic control device is configured to store a model of the first current in a manner which is dependent on a requested speed.

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