Device for managing the displacement of a hydraulic motor or a group of hydraulic motors

A hydraulic motor and motor technology, applied in the field of displacement devices, can solve the problems of poor braking efficiency, insufficient braking of small displacement, low braking torque, etc., and achieve the effect of compact design
CN101283181AActive Publication Date: 2008-10-08POCLAIN HYDRAULICS IND
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
POCLAIN HYDRAULICS IND
Publication Date
2008-10-08

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Abstract

A motor having two series of distribution ducts each having two groups of ducts. The displacement selector (30) is able to occupy a large displacement position (i) in which the first groups of distribution ducts (I1 and II2) of the first series are connected to a main duct (L1) while the second groups (I2 and II2) are connected to the other main duct (L2), and a small displacement configuration (ii) in which the first group of distribution ducts (I1) of the first series is connected to a main duct, the second group of distribution ducts (I2) of the first series is connected to the other main duct and a bypass connection exists between the first and the second group of distribution ducts (II1 and II2) of the second series. The device has a restriction (42 and 48) in order, in the small displacement configuration, to restrict this bypass connection.
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Description

technical field

[0001] The invention relates to a device for managing the displacement of a hydraulic motor having at least two effective working displacements and capable of being connected to two main conduits respectively for input and discharge, the motor comprising two series of distribution conduits, Each series has first and second sets of distribution ducts; the management device includes a displacement selector capable of occupying at least a high displacement position and a low displacement setting in which , the first set of distribution lines of the first and second series are connected to one main line, and the second set of distribution lines of the first and second series are connected to another main line; in this small displacement setup, the first series The first set of distribution pipes of the first series are connected to one main pipe, while the second set of distribution pipes of the first series are connected to another main pipe, and the first set of ...

Claims

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