Simran RPU80 사용자 설명서
Introduction
20220422N
5
1 INTRODUCTION
Note !
This manual does not cover a previous model RPU80 with serial
numbers 101-248. The model is covered by the RPU100
Reversible Pump Manual. Minor modifications where made to
the RPU100 model and they are described in a separate
"Technical Information" no. 01/94.
numbers 101-248. The model is covered by the RPU100
Reversible Pump Manual. Minor modifications where made to
the RPU100 model and they are described in a separate
"Technical Information" no. 01/94.
1.1 General
Hydraulic steering systems are now being used in every
category of small vessel. In many respects hydraulic steering is
preferable to mechanical steering.
Hydraulic systems normally comprise of two main components,
a steering wheel pump and steering cylinder(s). The steering
wheel pump may be either a gear pump or a plunger pump.
Which ever type is installed, steering is achieved by turning the
steering wheel in either direction causing oil from the wheel
pump to be supplied to the appropriate side of the cylinder. Oil
is returned via the opposite side of the cylinder back to the
pump.
The linear motion of the cylinder rod is transformed to a rotary
motion by the tiller, which turns the rudder shaft and rudder.
Check valves (non-return valves) are usually incorporated to
prevent the rudder driving the steering wheel pump.
If an autopilot is to be included in such a hydraulic steering
system, then the oil flow providing the rudder movement must
be controlled by electrical signals from the autopilot.
The maximum flow rate of RPU80, RPU160 and RPU300 is 0,8
l/min., 1,6 l/min. and 3,0 l/min. respectively, measured at a
pressure of 10 bar with nominal voltage (12 VDC) on the motor
terminals.
category of small vessel. In many respects hydraulic steering is
preferable to mechanical steering.
Hydraulic systems normally comprise of two main components,
a steering wheel pump and steering cylinder(s). The steering
wheel pump may be either a gear pump or a plunger pump.
Which ever type is installed, steering is achieved by turning the
steering wheel in either direction causing oil from the wheel
pump to be supplied to the appropriate side of the cylinder. Oil
is returned via the opposite side of the cylinder back to the
pump.
The linear motion of the cylinder rod is transformed to a rotary
motion by the tiller, which turns the rudder shaft and rudder.
Check valves (non-return valves) are usually incorporated to
prevent the rudder driving the steering wheel pump.
If an autopilot is to be included in such a hydraulic steering
system, then the oil flow providing the rudder movement must
be controlled by electrical signals from the autopilot.
The maximum flow rate of RPU80, RPU160 and RPU300 is 0,8
l/min., 1,6 l/min. and 3,0 l/min. respectively, measured at a
pressure of 10 bar with nominal voltage (12 VDC) on the motor
terminals.
Note !
RPU300 measurements are based on charging voltage
(14,4VDC)
(14,4VDC)
The flow rate is controlled by the output voltage from the
autopilot's junction unit/computer. When connected to autopilots
using the J300, J3000, all "X"-models of junction units and
ACXX Autopilot Computers, the output voltage that controls the
motor speed is proportional to the heading error from the
autopilot.
This will give slow and smooth rudder movements when
steering on a straight course in calm weather, but will also
ensure fast rudder response for bigger course changes or course
deviations caused by rough sea conditions.
autopilot's junction unit/computer. When connected to autopilots
using the J300, J3000, all "X"-models of junction units and
ACXX Autopilot Computers, the output voltage that controls the
motor speed is proportional to the heading error from the
autopilot.
This will give slow and smooth rudder movements when
steering on a straight course in calm weather, but will also
ensure fast rudder response for bigger course changes or course
deviations caused by rough sea conditions.
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