The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 27, 2017

Filed:

Sep. 18, 2015
Applicant:

Voith Patent Gmbh, Heidenheim, DE;

Inventor:

Magnus Junginger, Leonberg-Warmbronn, DE;

Assignee:

Voith Patent GmbH, Heidenheim, DE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16D 31/02 (2006.01); F15B 11/17 (2006.01); F15B 1/04 (2006.01); F15B 13/06 (2006.01); F15B 11/02 (2006.01); B30B 15/16 (2006.01); F15B 11/036 (2006.01);
U.S. Cl.
CPC ...
F15B 11/17 (2013.01); B30B 15/161 (2013.01); F15B 1/04 (2013.01); F15B 11/022 (2013.01); F15B 13/06 (2013.01); F15B 11/036 (2013.01); F15B 2211/20538 (2013.01); F15B 2211/20561 (2013.01); F15B 2211/20576 (2013.01); F15B 2211/27 (2013.01); F15B 2211/30525 (2013.01); F15B 2211/30565 (2013.01); F15B 2211/321 (2013.01); F15B 2211/327 (2013.01); F15B 2211/329 (2013.01); F15B 2211/625 (2013.01); F15B 2211/7055 (2013.01); F15B 2211/775 (2013.01);
Abstract

A hydraulic drive including a first differential cylinder that includes a first and a second pressure chamber and a first piston that separates the first from the second pressure chamber and having two pumps delivering in opposite direction. The hydraulic drive further includes a second differential cylinder that includes a first and a second pressure chamber and a second piston that separates the first pressure chamber from the second pressure chamber, and a directional control valve that has a first and a second switching position. The pumps in the first switching position are respectively hydraulically connected via pressure chambers of the first differential cylinder that are different from each other and whereby the pumps in the second switching position are respectively connected via pressure chambers of the second differential cylinder that are different from each other.


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