F - Mech Eng,Light,Heat,Weapons – 16 – H
Patent
F - Mech Eng,Light,Heat,Weapons
16
H
74/155, 115/8
F16H 3/10 (2006.01) B63H 23/04 (2006.01)
Patent
CA 1142393
-27- HYDRAULICALLY ACTUATED TWO-SPEED TRANSMISSION FOR A MARINE PROPULSION DEVICE ABSTRACT OF THE DISCLOSURE Disclosed herein is a marine propulsion device including an input shaft drivingly connected to a power source, a lower unit having a rotatably mounted drive shaft extending in coaxial relation to the input shaft, a rotatably mounted propeller shaft carrying a propeller and drivingly connected to the propeller shaft, and a two-speed transmission drivingly connecting the input shaft to the drive shaft. The transmission includes a third shaft rotatably mounted in parallel relation to the input shaft and the drive shaft, a first pair of meshing gears including a first drive gear mounted on the input shaft and a first driven gear mounted on the third shaft, a second pair of meshing gears including a second drive gear mounted on the third shaft and a second driven gear mounted on the drive shaft, and a one-way overrunning clutch drivingly connecting one of the shafts to a gear mounted on the shaft when the rotational speed of the input shaft is less than a predetermined value. The transmission also includes a fluid pressure actuated selectively actuatable clutch for drivingly connecting the input shaft and the drive shaft when the rotational speed of the input shaft is greater than a first value. The transmission includes a housing and a pair of the meshing gears are disposed in the housing to form a fluid pump for providing fluid to the fluid pressure actuated clutch, the fluid pump developing fluid pressure which increases as the rotational speed of the gears increases.
360419
Outboard Marine Corporation
Smart & Biggar
LandOfFree
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