Shock absorbing arrangement for marine outboard drive

Details Shock absorbing arrangement for marine outboard drive Shock absorbing arrangement for marine outboard drive

2005-10-25

2005-10-25

Sotelo, Jesus D. (Department: 3617)

Marine propulsion

Screw propeller

With means effecting or facilitating movement of propulsion...

C440S053000

Reissue Patent

active

RE038851

ABSTRACT:
A shock absorbing arrangement integrates in a compact manner into a fluid motor of a tilt cylinder, and consequently is particularly well suited for a small outboard drive that may only have a slimed tilt cylinder. The shock absorbing arrangement is provided in a piston for permitting flow from the first chamber to the second chamber upon the application of a predetermined force tending to cause the outboard drive to tilt-up. The shock-absorbing mechanism comprises a check valve assembly accommodated in a hollow space that is formed in the piston and is closed by a plug attached to the piston. A piston rod extends through the first chamber from the piston and is separately formed with the piston. The piston rod includes a passage that communicates with the hollow formed in the piston. A diameter of the passage provided in the piston rod is larger than the diameter of a valve seat for the check valve assembly in order to reduce fluid friction loss across the shock-absorbing valve assembly.

REFERENCES:
patent: 4718330 (1988-01-01), Mitton
patent: 4786263 (1988-11-01), Burmeister et al.
patent: 5149286 (1992-09-01), Tsujii
patent: 5261843 (1993-11-01), Tsujii et al.
patent: 5389019 (1995-02-01), Tsujii
patent: 5882235 (1999-03-01), Nakamura
patent: 44 24 927 (1996-01-01), None

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