Tilt cylinder device for outboard motor

Details Tilt cylinder device for outboard motor Tilt cylinder device for outboard motor

1998-11-09

2000-03-21

Morano, S. Joseph

Marine propulsion

Screw propeller

With means effecting or facilitating movement of propulsion...

440 53, 440 65, B63H 2126

Patent

active

060396172

ABSTRACT:
A tilt cylinder device has an exterior oil passage 61 outside a cylinder 51 for bringing oil chambers S6 and S7 into communication with each other, the exterior passage 61 is provided with a pump 72 and a control valve 73. A piston 13 is formed with a communication passage 34 for bringing oil chambers S6 and S7 into communication with each other. The communication passage 34 is provided with a first relief valve 15 which opens when a pressure in the rod side oil chamber S6 exceeds a set pressure. A hollow piston rod 14 is provided therein with a delay mechanism 16 for delaying the closing operation of the first relief valve 15 by pushing a valve body 15b of the first relief valve 15 in its valve opening direction for a predetermined time period after the relief valve 15 is opened.

REFERENCES:
patent: 5261843 (1993-11-01), Tsujii et al.
patent: 5389018 (1995-02-01), Funami
patent: 5529519 (1996-06-01), Nakamura et al.

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