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Patent Searching and Data


Title:
油圧モータ用制御装置
Document Type and Number:
Japanese Patent JP5464275
Kind Code:
B2
Abstract:
A control device for controlling a speed of a hydraulic motor includes a housing defining a first void. A speed valve is disposed within the first void and is moveable between a first speed valve position and a second speed valve position. The first void includes a speed valve pressure chamber disposed at one end of the speed valve. A speed valve spring is disposed at another end of the speed valve. The housing further defines a speed change port and a speed change passage interconnecting the speed change port and the speed change pressure chamber for directing a pressurized fluid directly into the speed valve pressure chamber to exert a pressure force on the speed valve and bias against the speed valve spring to move the speed valve between the first speed valve position and the second speed valve position.

Inventors:
Kurokawa Michio
Sakurai Hisashi
Application Number:
JP2012527399A
Publication Date:
April 09, 2014
Filing Date:
October 12, 2009
Export Citation:
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Assignee:
EATON CORPORATION
International Classes:
F03C1/00; F03C2/00
Domestic Patent References:
JP57002476A
Attorney, Agent or Firm:
Calyx
Kaoru Onozuka
Miyazaki Yoshio
Akio Tagami
High Masahiro