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.
Patent No.:
Date of Patent:
Feb. 19, 2002
Filed:
Jul. 27, 2000
Louis Martin, Compiegne, FR;
Jean-Marie Rouillard, La Croix Saint-Ouen, FR;
Jean-Pierre Souply, Senlis, FR;
Poclain Hydraulics Industrie, Verberie, FR;
Abstract
A hydraulic motor comprising a cylinder block having at least a first group of radial cylinders, a reaction member mounted to rotate relative to the cylinder block, and an internal fluid distributor having distribution ducts. The motor further comprises a single declutching selector constrained to rotate with the cylinder block about the axis of rotation and provided with a communication duct for each cylinder of the first group of cylinders, the selector being suitable for taking up a first position, in which it is possible to connect the cylinder ducts of said cylinders to the distribution ducts, a second position, in which it is possible to declutch the pistons of the cylinders of the first group by putting the cylinder ducts of said cylinders in communication with a fluid discharge enclosure, and an intermediate transitional position between said first and second positions, and in which said cylinder ducts are connected together via an isolated enclosure.