HPU for MOD
HPU for MOD
All info below, just needs formatting and optimising:
Richard Renfree supplied following info:
– End user: Leonardo Helicopters, but Rotec are supplying to Keyford
– Project discussions started in Nov 2019
– Has been in the making from May 2020
– For use in the military: testing the system that assist helicopter landing on military vessels
- For use with Mineral hydraulic fluid based upon AeroShell Fluid 41.
- Electric motor 3kw, 220VAC 60HZ, 1 Phase.
- Fixed delivery hydraulic pump to supply a nominal 10 L/Min at 140 Bar.
- Hydraulic reservoir – Nominal 70ltr Cast Aluminium base with a Aluminium reservoir lid fitted with the following items:-
- Electric motor & Pump set (Above) vertically mounted (Pump below reservoir lid)
- Filler breather
- Visual oil level sight gauge
- Pressure filter, with visual filter condition indicator and internal by-pass valve
- Return line filter, with visual filter condition indicator and internal by-pass valve
- Hydraulic manifold assembly with:-
- Pressure relief valves to limit the maximum pressures
- Electrical Un-load / Loading hydraulic control valve
Hydraulic reservoir – fitted with the following items continued:-
- Electrical Low oil level switch
- Frame to support power unit and accumulator fitted with castor Wheels – two fixed and two swivel castors incorporating brakes & fitted to the reservoir feet.
- Steel hand pump to achieve the highr system pressure requiremnt of 210Bar. Max working force required at 210Bar using 600mm lever is 25kg.
- Manual decompression valve
- 5 Litre accumulator precharged to 80Bar with safety block for safe isolation/discharge.
- 4 x 20 Litre containers of Aeroshell 41 hydraulic fluid***
Also fitted to the power unit would be:-
- Quick release couplings and connecting hoses to accept harpoon test frame. (2 off 5 meter hoses)
- Electrical control panel – Motor starter and 28vdc supply for harpoon test frame
- Electrical control panel to be mounted on power unit incorporating.
- DOL Starter with Thermal magnetic circuit breaker
- Lockable panel isolator
- Emergency stop – Dual chanel safety monitoring relay for the emergency stop circuit
- Panel indicator lamps for oil low level, motor overload and E stop healthy
- 28VDC supply for harpoon test rig.
- Panel mounted digital pressure display