Power plants – Pressure fluid source and motor – Servo-motor having externally operated control valve sets...
Reexamination Certificate
2007-07-17
2007-07-17
Lazo, Thomas E. (Department: 3745)
Power plants
Pressure fluid source and motor
Servo-motor having externally operated control valve sets...
C091S359000
Reexamination Certificate
active
10558703
ABSTRACT:
A motion converting section (31) and a translation bar (33) of a feedback mechanism (30) are provided between a lateral side of a swash plate (21) and a control sleeve (26) of a regulator (24). When the swash plate (21) is in a neutral position, the motion converting section (31) is located in an initial position (F—F) at one end of axial direction along an axis line (O—O) passing through a tilting center (C) of tilting motions, and, when the swash plate (21) is driven to tilt in a forward or reverse direction, displaced to the other end of axial direction along the axis line (O—O) to convert a tilting motion of the swash plate (21) into an axial displacement. Through the translation bar (33), the axial displacement is transmitted to the control sleeve (26) of the regulator (24) as an axial displacement.
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Kobayashi Takeshi
Niidome Takashi
Yabuuchi Yoshitomo
Hitachi Construction Machinery Co. Ltd.
Lazo Thomas E.
Mattingly ,Stanger ,Malur & Brundidge, P.C.
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