B - Operations – Transporting – 63 – H
Patent
B - Operations, Transporting
63
H
115/10
B63H 20/08 (2006.01)
Patent
CA 1243556
ABSTRACT OF THE DISCLOSURE A marine propulsion device including a member adapted to be connected to a boat hull, and a propulsion assembly pivotally connected to the member for vertical swinging movement when the member is attached to the boat hull. The device also includes a plurality of hydraulic assemblies, each of the hydraulic cylinder assemblies including a hydraulic cylinder and a piston rod slideably received in the cylinder. The hydraulic cylinder assemblies are mounted between the member and the propulsion assembly to effect the vertical swinging movement of the propulsion assembly in response to movement of the piston rods in one direction relative to the cylinders and in the opposite direction relative to the cylinders. The marine propulsion device further includes a reversible pump including a first port and a second port. The marine propulsion device further includes a hydraulic conduit system communicating between the first and second ports and the cylinder assemblies for moving the piston rods in one direction relative to the cylinders in response to pressurization of the first port, and for moving the piston rods in the opposite direction relative to the cylinders in response to pressurization of the second port. The conduit system also includes a filter and a control arrangement communicating with the filter for requiring substantially all of the fluid flowing from the hydraulic cylinder assemblies to the pump to pass through the filter.
463288
Outboard Marine Corporation
Smart & Biggar
LandOfFree
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