March 2007 Controllable Pitch Propellers - · PDF filePropeller shaft Oil pipes ... March 2007...
Transcript of March 2007 Controllable Pitch Propellers - · PDF filePropeller shaft Oil pipes ... March 2007...
March 2007 Controllable Pitch Propellers
Integrated cylinder
External cylinder
Overview of a CPP installation
March 2007 Controllable Pitch Propellers
Oil Distribution BoxCylinder
Pitch repetitor
Half housing
Stern tube side
Propeller shaft Oil pipes
Push Pull rod
Gearbox side – Pitch actuation
March 2007 Controllable Pitch Propellers
Hull tube
Chock fastassembly
Stern tubePlain bearingsSealsBlades
Propeller shaft
Propeller hub
Yoke
Push Pull rod
Propeller side – Blade rotation
March 2007 Controllable Pitch Propellers
Hydraulic circuit
The oil can be sucked directely from the gearbox housing. A twin stage pump is used.
The first stage is for the gearbox pressure and lubrication.
The second stage is for the blades actuation.
An other solution is to use oil coming froman independant hydraulic unit.
Can be fitted with two electric pump in case of classification request.
March 2007 Controllable Pitch Propellers
• The complete system is supplied including:Stern tube
White metal bearingsFwd and Aft seals
Stern tube - Seals
• The hollow bored propeller shaftwill be fitted with a push pull rod connecting the Servo unit with the mechanism in the hub
March 2007 Controllable Pitch Propellers
Electronic remote control
Engine LoadEngine Rpm
Clutch
Shaft Rpm
Pitch
DPSor
Others
ElectronicCentral
Unit
SlaveControlPanel
Wing 2 ControlPanel
Master ControlPanel
Wing 1 ControlPanel
ECR ControlPanel
March 2007 Controllable Pitch Propellers
Electronic remote control
-The pitch can be adjusted with constant rpm of the engine. Used with power take off applications.
-In combinator mode, pitch and engine rpme are linked.
Wheelhouse panelswith DP Interface
(Dynamic Positioning)
Electronic Central Unit withEmergency Telegraph
March 2007 Controllable Pitch Propellers
Applications
Passenger boats Fishing boats
Tankers – General Cargos
March 2007 Controllable Pitch Propellers
Applications
Dredgers Tugs – Fifi boats
River boats
March 2007 Controllable Pitch Propellers