Planetary gear transmission systems or components – Fluid drive or control of planetary gearing – Fluid pump and motor in one of plural paths to or from...
Reexamination Certificate
2007-05-02
2010-11-09
Estremsky, Sherry L (Department: 3655)
Planetary gear transmission systems or components
Fluid drive or control of planetary gearing
Fluid pump and motor in one of plural paths to or from...
Reexamination Certificate
active
07828683
ABSTRACT:
A CVT hydromechanical drive having: an engine (12) rotating a propeller shaft (11); a hydrostatic unit (13), in turn having a hydraulic pump (14) and a hydraulic motor (15) connected hydraulically to each other; an epicyclic transmission (16); a number of clutches (CH1, CH2, CH3); a differential; and an assembly (PTO). The hydromechanical drive (10) is characterized in that the hydrostatic unit (13) is substantially U-shaped, and in that a longitudinal axis of symmetry (b) of the pump (14) is substantially in line with a longitudinal axis of symmetry (a) of the propeller shaft (11).
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patent: 6361463 (2002-03-01), Kojima
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patent: 6616559 (2003-09-01), Hori et al.
patent: 2004/0209718 (2004-10-01), Ishibashi et al.
patent: 2006/0035542 (2006-02-01), Ohtsuki
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Balboni Claudio
Sedoni Enrico
Bishop Erin D
CNH America LLC
Estremsky Sherry L
Harms Michael G.
Sheldrake Patrick M.
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