Propeller drive sleeve with asymmetric shock absorption

Details Propeller drive sleeve with asymmetric shock absorption Propeller drive sleeve with asymmetric shock absorption

1996-03-19

1997-05-20

Look, Edward K.

Fluid reaction surfaces (i.e., impellers)

Articulated, resiliently mounted or self-shifting impeller...

Nonmetallic resilient mounting

416 93A, 416244R, 440 52, 464 89, 464180, B63H 2330

Patent

active

056307047

ABSTRACT:
A shock absorbing drive sleeve (402, FIGS. 28+) mounts a marine drive propeller (12) to a propeller shaft (22) and has an asymmetric spring rate such that the sleeve has a higher spring rate and greater torque bearing capability for the forward boat direction, and a softer spring rate and greater shock absorption for the reverse boat direction, to protect the weaker reverse drive components of the gear train.

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