Furuno Autopilot Pump

Furuno Autopilot Pump Product Description

Autopilot Pump, 12 VDC, 1.7 Cubic Inches Per Second (For Ram Sizes of 14 Cubic Inches to 25 Cubic Inches in Volume)

The PUMPHRP17-12 is a reversing pumpset designed to interface the NavPilot series autopilot with a hydraulic steering system. The pump assembly incorporates a reversible gerotor gear pump, a two-piece gear housed in an eccentric ring. This allows for incredibly quiet, reliable and precise operation.

A hydraulic steering system consists of a hydraulic actuator and one or more steering wheel pumps, or helm pumps. As the steering wheel (helm pump) is turned in the port direction, hydraulic oil is pumped into the port hydraulic steering line. This oil is directed into the port side of the steering cylinder. As the cylinder moves to port, oil from the starboard side of the cylinder returns to the helm pump through the starboard hydraulic lines.

One end of the cylinder is fixed and the other is connected to a tiller arm, which is connected to a rudder shaft. With this connection to the tiller arm the linear movement of the cylinder to port is changed to rotary movement, which turns the rudder and steers the vessel to port. Moving the steering wheel to starboard produces the same reaction with oil being pumped out of the starboard line and returning through the port line.

If more than one helm pump is used, a return/fill line must be installed to connect the cases of all helm pumps together.

The output flow rate of the pumpset determines the speed of the steering cylinder. The PUMPHRP17-12 outputs 1.6 cu. in. of oil per second and requires a 12VDC input.

WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.

PUMPHRP17-12 is a reversible pump unit designed to connect NavPilot series autopilots with hydraulic steering systems. The pump assembly includes a reversible gear pump, which is a two-piece gear mounted in an eccentric ring. This allows extremely quiet, reliable and precise operation. The hydraulic steering system consists of a hydraulic actuator and one or more steering wheel pumps or steering pumps. As the steering wheel (helm pump) rotates in the direction of the port, hydraulic oil is pumped into the port hydraulic steering line. The oil is introduced to the intake port side of the steering cylinder. As the cylinder moves to the left, the oil on the starboard side of the cylinder returns to the rudder pump through the starboard hydraulic line. One end of the cylinder is fixed, the other end is connected to the tiller, which is connected to the rudder shaft. Through the connection with the tiller, the linear motion of the cylinder to the port becomes a rotary motion, which will turn the rudder and turn the ship towards the port. Moving the steering wheel to starboard will produce the same reaction, the oil will be drawn from the starboard line and returned through the port line. If multiple helmet pumps are used, a return/fill line must be installed to connect the housings of all helmet pumps together. The output flow of the pump set determines the speed of the steering cylinder. PUMPHRP17-12 output 1.6 cubic meters. The oil pressure is in .. per second and requires 12VDC input.



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