Hydraulic drive for construction machine
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 5, 1999
Grant Date -
N/A
app pub date -
Feb 26, 1998
filing date -
Feb 27, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A hydraulic motor comprising a casing, a reaction member, a cylinder block, an inner fluid distributor valve fast with the casing with respect to rotation about the axis of the motor and a driving shaft extending inside the casing coaxially to said axis. The motor is a low-speed, high-torque motor and comprises, disposed inside the casing, a coupling member fast in rotation with the cylinder block, a step-up gear, first and second mechanical engagement means for connecting the coupling member and the driving shaft and, respectively, the coupling member and the step-up gear, in rotation. The coupling member is mobile between a first and a second position in which the first and the second engagement means are selectively activated and de-activated. The motor comprises means for controlling the displacement of the coupling member between its positions. The driving shaft is capable of constituting a portion of the main shaft of the transmission of a vehicle.
First Claim
Other Claims data not available
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International Classification(s)
Cited Art Landscape
Patent Citation Ranking
- 3 Citation Count
- F16H Class
- 3.65 % this patent is cited more than
- 26 Age