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Leading particulars
General description
The XRVS 1000 CD7 is a silenced, two-stage, oil injected,
screw compressor, built for a nominal working pressure of
363 psi (bar 25) and maximum working pressure of 510
psi.
Engine
The compressors are driven by a 6 cilinder in-line liquid-
cooled diesel engine.
The engine's power is transmitted to the compressor
element through a heavy-duty coupling.
To meet the demands of Stage IIIB / Tier 4 Interim
Emission Legislation, the engine is equipped with an
exhaust gas recirculation system and a particulate filter.
Compressor
The compressor casing houses two screw-type rotors,
mounted on ball and roller bearings. The male rotor,
driven by the engine, drives the female rotor. The
compressor delivers pulsation-free air.
Injected oil is used for sealing, cooling and lubricating
purposes.
Compressor oil system
The oil is boosted by air pressure. The system has no oil
pump.
The oil is removed from the air, in the air/oil vessel first by
centrifugal force, secondly by the oil separator element.
The vessel is provided with an oil level indicator.
Regulation
The compressor is provided with a continuous regulating
system and a blow-down valve which is integrated in the
unloader assembly. The valve is closed during operation
by outlet pressure of the compressor element and opens by
air receiver pressure when the compressor is stopped.
Cooling system
The engine is provided with a liquid-cooler and
intercooler and the compressor is provided with an oil
cooler. (For available options see chapter Available
options.)
The cooling air is generated by a fan, driven by the engine.
The cooling system is newly developped to dissipate the
extra heat extracted from the exhaust during the cooled
exhaust gas regeneration process.
Safety devices
A thermal shut-down sensor protects the compressor
against overheating. The air receiver is provided with a
safety valve.
The engine is equipped with low oil pressure and high
coolant temperature shut-down sensors.
The electric system is equipped with a 24V main switch.
Frame and axles
The compressor/engine unit is supported by rubber buffers
in a spillage-free frame.
The standard compressor has a towbar with parking
brakes.
Optional the compressor can be equipped with a tandem
undercarriage with air brakes (EU) for high speed road
transport.
Bodywork
The bodywork has openings for the intake and outlet of
cooling air and hinged doors for maintenance and service
operations. The bodywork is internally lined with sound-
absorbing material.
Lifting eye
A lifting beam is accessible when a small door at the top
is opened.
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Control panel
The control panel is located at the back on the left hand
side of the canopy. It is equipped with a protective metal
cover for safety and protection.
The control panel has a multi-lingual display, an ON/OFF
switch, a starting, a stopping and a Load/noLoad button,
three buttons for selecting views and buttons for scrolling,
selecting/entering and a return button. When in operation,
the Main View shows all relevant compressor data at a
glance.
Data plate
The compressor is furnished with a data plate showing the
product code, the unit serial number and the working
pressure .
Exhaust system
The exhaust system includes a new exhaust aftertreatment
system that meets strict installation standards and includes
a.o. a diesel particulate filter.
Serial number
The serial number is stamped in at the front of the
compressor on the upper edge of the frame behind the
right door. It is also mentioned on the data plate and inside
the control box.
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