Compressors Flashcards
The oil system for the sliding vane compressor is used for, sealing, heat transfer, lubrication and _______________.
Controlling the air inlet valve.
What features, working together on a sliding vane compressor, allows it to only deliver the volume of air required by the system?
Servo valve/intake valve
Where would the oil release valve be found on a sliding vane compressor?
At the bottom of the stator housing
What function do the oil return valves serve on a sliding vane compressor?
To drain the separator housing
What is the purpose of machining an extra cut into the stator, between the discharge and intake ports, on a sliding vane compressor?
To help reduce the volume of compressed air trapped between the vanes
Sliding vane compressors are classed as __________________ machines.
Positive displacement
Dry type sliding vane compressors, in single staged, are commonly used for pressures in the ___________ range.
50 Psi
When the sliding vane compressor is working, the pressure in the oil reservoir is equal to
Delivery pressure
In a sliding vane compressor, the air is compressed by
Decreasing the distance between the rotor and the stator
If the discharge slots on a sliding vane compressor become worn, the likely result would be
Decreased pressure/no volume change
What is the main factor in a liquid ring compressor having a built in pressure ratio
Location of the discharge port
Liquid rings are able to run for long periods under adverse conditions because
There are no rubbing parts
If a liquid ring compressor were being used in vacuum service, where would you position the vacuum gauge?
Immediately before the intake
If there was an obstruction in the intake pipe on a liquid ring compressor, it would show up as
A decrease in discharge volume
What causes the air to flow into the inlet of a liquid vane compressor?
I pressure differential
