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:
Aug. 08, 2017

Filed:

Sep. 29, 2015
Applicant:

Robert Bosch Gmbh, Stuttgart, DE;

Inventors:

Ralf Neubauer, Lohr, DE;

Klaus Habr, Marktheidenfeld, DE;

Valentin Voth, Bruchkoebel, DE;

Thomas Mueller, Steinfeld, DE;

Assignee:

Robert Bosch GmbH, Stuttgart, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 11/065 (2006.01); F16K 31/40 (2006.01); F16K 11/07 (2006.01); F16K 27/04 (2006.01); F16K 31/12 (2006.01);
U.S. Cl.
CPC ...
F16K 11/0655 (2013.01); F16K 11/0716 (2013.01); F16K 27/044 (2013.01); F16K 31/12 (2013.01); F16K 31/406 (2013.01); Y10T 137/7766 (2015.04); Y10T 137/86702 (2015.04);
Abstract

A hydraulic cartridge valve includes a sleeve with a longitudinal bore that forms a working port via an end opening. A plunger is accommodated for linear motion in the longitudinal bore. The sleeve is penetrated in an inlet port region by a first radial bore that extends radially with respect to a longitudinal axis of the hydraulic cartridge valve. The sleeve is penetrated in a return port region by a second radial bore that extends radially with respect to the longitudinal axis. A first fluid flow path extends from the inlet port to the working port and a second fluid flow path extends from the working port to the return port. The plunger has third and fourth radial bores that extend radially with respect to the longitudinal axis and form part of the first and second fluid flow paths, respectively.


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