Title:
船舶推進機のパワーチルト装置
Document Type and Number:
Japanese Patent JP4056029
Kind Code:
B2
Abstract:
A power tilt device (10), in particular to tilt a marine propulsion unit (5), comprising a cylinder device (12) having a tilt piston (15) provided at one side with a piston rod (18) and dividing said cylinder device (12) into a first chamber (S1) and a second chamber (S2): Said first and second chambers (S1,S2) being supplyable with working fluid from a working fluid pump (11) via twin main valves (13A,13B), one (13A) of which being connected with said first chamber (S1) and said working fluid pump (11), the other (13B) being connected with said second chamber (S2) and said working fluid pump (11), said twin main valves (13A,13B) being operable in cooperation with respective first and second shuttle piston units (23A,23B). Said shuttle piston units comprising shuttle pistons (23A,23B) wherein one of said shuffle pistons (23A,23B) being accommodated in a sealing condition, whereas the other of said shuttle pistons (23A,23B) being adapted to allow the working fluid to flow in both directions between the working chambers of said shuttle piston unit.
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Inventors:
Saito Hideki
Application Number:
JP3989999A
Publication Date:
March 05, 2008
Filing Date:
February 18, 1999
Export Citation:
Assignee:
Souki h .s Co., Ltd.
International Classes:
B63H20/08; B63H20/10; F15B7/00; F15B11/00; F15B21/044
Domestic Patent References:
| JP7228296A | ||||
| JP3239845A |
Attorney, Agent or Firm:
Tadao Sawada