Shift assistor for marine transmission

Details Shift assistor for marine transmission Shift assistor for marine transmission

1996-07-22

1998-08-04

Basinger, Sherman

Marine propulsion

Screw propeller

Having transmission

440 80, B63H 2020

Patent

active

057885460

ABSTRACT:
A transmission for a dual, counter-rotational propeller system incorporates a shift assistor to yieldably cushion transmission engagement. The shift assistor desirably operates between one clutch of a dual clutch assembly and a clutch actuator. The shift assistor specifically yieldably couples the clutch to the actuator. The yieldably coupling permits relative movement between the shift assistor and the clutch during the shifting operation in order to allow the clutches to engage the corresponding gears separately (i.e., at different times). The shift assistor thus reduces coupling shock when shifting the transmission either into a forward or a reverse drive condition.

REFERENCES:
patent: 4302196 (1981-11-01), Blanchard
patent: 4530667 (1985-07-01), McCormick
patent: 4793773 (1988-12-01), Kinouchi et al.
patent: 4986774 (1991-01-01), Wantz
patent: 5006084 (1991-04-01), Handa
patent: 5449306 (1995-09-01), Nakayasu et al.
patent: 5522703 (1996-06-01), Okamoto
patent: 5575698 (1996-11-01), Ogino

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