Patent ID: 9669914
Date: 2017-06-06
CPC Classifications: B63H

Claim:
1. A power steering system for a marine steering system, the marine steering system comprising a pivotable outboard motor and a steering actuator operationally coupled to the outboard motor via a steering rod and a steering link, the power steering system comprising: a. a hydraulic cylinder having a barrel and a ram that moves into and out of one end of the barrel; b. an actuator block that is mounted on an outer end of the ram; c. valving that is located in the hydraulic cylinder and that is configured to control the flow of hydraulic fluid to and from the hydraulic cylinder; and d. an actuator arm that is mounted on the actuator block and that is connected to the steering link, to the steering rod, and to the valving, the actuator arm being configured to move on the actuator block upon the transmission of steering command forces thereto by the steering rod to actuate the valving so as to drive the ram into or out of the barrel and to transmit steering forces to the steering link from the actuator block, wherein a valve actuator ram is located in a bore in the actuator block and is movable under operation of the actuator arm to actuate the valving, the valve actuator ram being sealed to the bore in the actuator block by an o-ring seal.