Patent · US Expired

Device for changing the relative rotational position of a shaft to the drive wheel

US6209497A · kind A · utility

6Cited by

3References

15Claims

0Family size

Assignees

Dr. Ing. h.c. F. Porsche AG · DE
Hydraulik-Ring GmbH · DE

Inventors

Bernd Niethammer · Jeffery Road, DE
Andreas Knecht · Herrenberg, DE

Key dates

Filing date	Apr 4, 2000
Grant date	Apr 3, 2001
Priority date	—
Expiry date	Apr 4, 2020

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T74/2102
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

The system according to the invention for the relative rotating position change of a shaft with respect to a driving wheel has an adjusting device with two pressure spaces which act against one another and which can be acted upon by a pressure medium pump. In order to achieve a uniform controlled adjusting operation and a secure position fixing, the pressure space connected with the pressure medium pump is acted upon by pressure at the start of the adjusting movement before the opposite pressure space connected with the pressure medium tank is relieved.

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