A marine autopilot system is disclosed. While in autopilot mode, the marine vessel's autopilot system autonomously steers the marine vessel's rudder. Steering input provided using the helm typically results in counter-steering to the autopilot. If the autopilot is following a current heading or course (route), the autopilot may continue its efforts to remain on the heading or course in response to the deviation caused by steering input to the helm. The disclosed autopilot system improves this problem by including one or more sensors that measure helm movement and wirelessly transmit helm movement data to one or more components of the marine vessel's electronic network. If the operator of the marine vessel manually steers the helm to deviate from a current heading or course, helm movement exceeding a predetermined autopilot disengagement threshold may cause the autopilot control to temporarily disengage, allowing a user to manually steer the marine vessel.

A marine autopilot system is disclosed. While in autopilot mode, the marine vessel's autopilot system autonomously steers the marine vessel's rudder. Steering input provided using the helm typically results in counter-steering to the autopilot. If the autopilot is following a current heading or course (route), the autopilot may continue its efforts to remain on the heading or course in response to the deviation caused by steering input to the helm. The disclosed autopilot system improves this problem by including one or more sensors that measure helm movement and wirelessly transmit helm movement data to one or more components of the marine vessel's electronic network. If the operator of the marine vessel manually steers the helm to deviate from a current heading or course, helm movement exceeding a predetermined autopilot disengagement threshold may cause the autopilot control to temporarily disengage, allowing a user to manually steer the marine vessel.

A marine autopilot system is disclosed. While in autopilot mode, the marine vessel's autopilot system autonomously steers the marine vessel's rudder. Steering input provided using the helm typically results in counter-steering to the autopilot. If the autopilot is following a current heading or course (route), the autopilot may continue its efforts to remain on the heading or course in response to the deviation caused by steering input to the helm. The disclosed autopilot system improves this problem by including one or more sensors that measure helm movement and wirelessly transmit helm movement data to one or more components of the marine vessel's electronic network. If the operator of the marine vessel manually steers the helm to deviate from a current heading or course, helm movement exceeding a predetermined autopilot disengagement threshold may cause the autopilot control to temporarily disengage, allowing a user to manually steer the marine vessel.

A marine autopilot system is disclosed. While in autopilot mode, the marine vessel's autopilot system autonomously steers the marine vessel's rudder. Steering input provided using the helm typically results in counter-steering to the autopilot. If the autopilot is following a current heading or course (route), the autopilot may continue its efforts to remain on the heading or course in response to the deviation caused by steering input to the helm. The disclosed autopilot system improves this problem by including one or more sensors that measure helm movement and wirelessly transmit helm movement data to one or more components of the marine vessel's electronic network. If the operator of the marine vessel manually steers the helm to deviate from a current heading or course, helm movement exceeding a predetermined autopilot disengagement threshold may cause the autopilot control to temporarily disengage, allowing a user to manually steer the marine vessel.

A double-effect hydraulic actuating cylinder, particularly for hydraulic steering devices of outboard marine engines, is slidably mounted on a rod coaxial with the cylinder and sealingly protruding from a head of the actuating cylinder, carrying a separating piston that divides the cylinder into two variable volume chambers. Each chamber has an inlet/outlet for the hydraulic fluid that are respectively connected to one of the inlets/outlets of a pump, and a sealing head is disposed between the cylinder and the rod and is integral with the cylinder. The rod is adapted to be connected to a fastening bracket to non-slidably fasten the cylinder to the engine, allowing a relative rotation of the engine with respect to the transom along an axis parallel to the axis of the rod. The rod has at least one flattened surface to be grasped by a tool having a correspondingly flattened engagement surface.

A self-contained expandable automatic pressure compensated accumulator system for storing and releasing hydraulic fluid energy for use by subsea equipment having a controller, a pressure source, a bidirectional valve fluidly connected to the pressure source, an expandable multisided vessel fluidly connected to the bidirectional valve having a plurality of axial folds between first and second ends, and a bidirectional port connected to the pressure source. As the plurality of axial folds expand, a contracted volume of pressure expands increasing stored hydraulic fluid energy in the expandable multisided vessel. As the plurality of axial folds contract, the expanded volume reduces, releasing stored hydraulic fluid energy to nearby subsea equipment on demand as changes in hydraulic fluid energy requirements for the subsea equipment changes. Simultaneously, hydrostatic seawater pressure of seawater on the expandable multisided vessel is counteracted with the hydrostatic pressure of fluid inside the expandable multisided vessel.

A hydraulic system for supplying fluid to an actuator comprising a variable speed prime mover drivingly coupled to a variable displacement hydraulic pump. The system is configured to deliver hydraulic fluid via fluid conduits to an actuator. It may deliver hydraulic fluid to an actuator at a first hydraulic pressure at a first rate of pressure rise; and at a second hydraulic pressure at a second rate of pressure rise. The first hydraulic pressure may be greater than the second hydraulic pressure; and the first hydraulic rate of pressure rise may be lower than the second hydraulic rate of pressure rise.

A hydraulic system for supplying fluid to an actuator comprising a variable speed prime mover drivingly coupled to a variable displacement hydraulic pump. The system is configured to deliver hydraulic fluid via fluid conduits to an actuator. It may deliver hydraulic fluid to an actuator at a first hydraulic pressure at a first rate of pressure rise; and at a second hydraulic pressure at a second rate of pressure rise. The first hydraulic pressure may be greater than the second hydraulic pressure; and the first hydraulic rate of pressure rise may be lower than the second hydraulic rate of pressure rise.

A marine autopilot system is disclosed. While in autopilot mode, the marine vessel's autopilot system autonomously steers the marine vessel's rudder. Steering input provided using the helm typically results in counter-steering to the autopilot. If the autopilot is following a current heading or course (route), the autopilot may continue its efforts to remain on the heading or course in response to the deviation caused by steering input to the helm. The disclosed autopilot system improves this problem by including one or more sensors that measure helm movement and wirelessly transmit helm movement data to one or more components of the marine vessel's electronic network. If the operator of the marine vessel manually steers the helm to deviate from a current heading or course, helm movement exceeding a predetermined autopilot disengagement threshold may cause the autopilot control to temporarily disengage, allowing a user to manually steer the marine vessel.

A marine autopilot system is disclosed. While in autopilot mode, the marine vessel's autopilot system autonomously steers the marine vessel's rudder. Steering input provided using the helm typically results in counter-steering to the autopilot. If the autopilot is following a current heading or course (route), the autopilot may continue its efforts to remain on the heading or course in response to the deviation caused by steering input to the helm. The disclosed autopilot system improves this problem by including one or more sensors that measure helm movement and wirelessly transmit helm movement data to one or more components of the marine vessel's electronic network. If the operator of the marine vessel manually steers the helm to deviate from a current heading or course, helm movement exceeding a predetermined autopilot disengagement threshold may cause the autopilot control to temporarily disengage, allowing a user to manually steer the marine vessel.