专利名称:HYDRAULIC ARRANGEMENT FOR
VERTICALLY TRIMMING A MARINEPROPULSION UNIT
发明人:BLANCHARD C,US申请号:US3718110D申请日:19710915公开号:US3718110A公开日:19730227
摘要:Disclosed herein is a marine propulsion device, such as an outboard motor,including a transom bracket adapted to be attached to a boat transom, a swivel bracketpivotally connected to the transom bracket about a generally horizontal axis and havinga vertically extending bore including a cylindrical portion, a propulsion unit including ahousing supporting a propeller, a king pin having a length greater than the bore, andfixedly connected, at its upper and lower ends, to the housing and extending through thebore, a piston on the king pin in engagement with the cylindrical bore portion, means inthe bore above the piston supporting the king pin for axial and rotative movementrelative to the swivel bracket and for sealing an upper part of the bore against loss ofhydraulic fluid, means in the bore below the piston for supporting the king pin for axialand rotative movement relative to the swivel bracket and for sealing a lower part of thebore against loss of hydraulic fluid, a pair of spaced hydraulic conduits extending throughthe swivel bracket and respectively communicating with the bore above and below thepiston, and means communicating with the conduits for selectively supplying hydraulicfluid to the bore through one of the conduits and simultaneously draining hydraulic fluid
from the bore through the other of the conduits.
申请人:OUTBOARD MARINE CORP,US
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