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:
Feb. 18, 2020

Filed:

Jul. 28, 2015
Applicant:

Poclain Hydraulics Industrie, Verberie, FR;

Inventor:

Julien Viard, Verberie, FR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B 1/107 (2006.01); F04B 1/047 (2006.01); F03C 1/047 (2006.01); F03C 1/40 (2006.01); F03C 1/06 (2006.01); F04B 1/06 (2006.01); F16K 11/085 (2006.01); F16K 31/122 (2006.01);
U.S. Cl.
CPC ...
F04B 1/107 (2013.01); F03C 1/045 (2013.01); F03C 1/047 (2013.01); F03C 1/0447 (2013.01); F03C 1/0636 (2013.01); F04B 1/047 (2013.01); F04B 1/06 (2013.01); F16K 11/085 (2013.01); F16K 31/1221 (2013.01);
Abstract

The device has an internal distributor to be disposed in a casing portion (A), and has a body () that has an outside axial face (B) provided with two grooves () respectively for feed and for discharge. The distributor has distribution ducts (A,B,C) that open out in a distribution radial face and a cylinder capacity selector that has a slide () suitable for being moved in an axial bore () for connecting the distribution ducts to one or the other of the grooves. The device further has a control chamber () provided between a first end wall (') of the bore and the first end (A) of the slide, and an opposing spring () disposed in a return chamber (′) situated at the second end (″) of the bore and closed, at the end closer to the distribution face (A), by a second end wall (′) of the distributor.


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