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
2006-07-04
2006-07-04
Estremsky, Sherry (Department: 3681)
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
07070531
ABSTRACT:
A hydromechanical transmission having a continuously variable transmission function and occupying a small area for installation is provided. For this purpose, the transmission includes a driving source (3), a planetary gear speed reducer (5) connected to the driving source, a variable displacement hydraulic pump (11), which is connected to the planetary gear speed reducer, and to which one part of an output force of the driving source is outputted, an output shaft (717), which is connected to the planetary gear speed reducer, and to which the other part of the output force of the driving source is outputted, a first and a second variable displacement hydraulic motors (31, 37) receiving pressure oil from the hydraulic pump and outputting a driving force to the output shaft, and a clutch (45) placed between the second hydraulic motor (37) and the output shaft.
REFERENCES:
patent: 3074296 (1963-01-01), Ebert
patent: 4983149 (1991-01-01), Kita
patent: 37 33 152 (1989-04-01), None
patent: 2004-340271 (2004-12-01), None
patent: 2004-353689 (2004-12-01), None
H. Mitsuya et al; Development of Hydromechanical Transmission (HMT) For Bulldozers; SAE Technical Paper Series, 941722, pp. 1-10; 1994.
Estremsky Sherry
Frishauf Holtz Goodman & Chick P.C.
Komatsu Ltd.
LandOfFree
Hydromechanical transmission does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hydromechanical transmission, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydromechanical transmission will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3549508