Patent · US Active

Hydrostatic power unit to start an internal combustion engine

US9429129B2 · kind B2 · utility

0Cited by

1References

5Claims

0Family size

Assignee

Linde Hydraulics GmbH & Co. KG · DE

Inventors

Lukas Krittian · Aschaffenburg, DE
Martin Steigerwald · Herzogenaurach, DE
Martin Oberhausser · Aschaffenburg, DE
Alfred Langen · Goldbach, DE

Key dates

Filing date	Nov 18, 2013
Grant date	Aug 30, 2016
Priority date	—
Expiry date	Jul 30, 2034

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF15B1/24
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A variable displacement hydrostatic power unit (7) is connected with an internal combustion engine (2). The power unit (7) operates as a pump to deliver hydraulic fluid to at least one consumer (V) and operates as a motor as a hydraulic starter for the internal combustion engine (2). Hydraulic fluid from a hydraulic accumulator (25) is supplied to the power unit (7) operated as a motor. The power unit (7) includes a spring device (55) which, when the internal combustion engine (2) is shut off, actuates a displacement volume control device (50) into a position with the maximum displacement volume. When the power unit (7) is actuated with hydraulic fluid from the hydraulic accumulator (25), the internal combustion engine (7) is immediately started by the power unit (7) without the need for an immediately preceding adjustment of the displacement volume control device (50) of the power unit (7).

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