word definition question on pump/compressor
word definition question on pump/compressor
(OP)
What is the differece between a air compressor and an air pump
Is there a line where a device it to be called a pump, as in a bicycle pump or a compressor as in a air compressor?
Thanks
Is there a line where a device it to be called a pump, as in a bicycle pump or a compressor as in a air compressor?
Thanks





RE: word definition question on pump/compressor
RE: word definition question on pump/compressor
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RE: word definition question on pump/compressor
The difference to me is really whether or not the fluid the device is putting energy into is compressible or incompressible. With incompressible fluids, the device can generally either change the fluid's pressure or its velocity. With compressible fluids, it can still change pressure and velocity, but work is also done changing the fluid's density.
I have a feeling this is going to be one of those "bolt or screw" types of discussions.
RE: word definition question on pump/compressor
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RE: word definition question on pump/compressor
Much of the distinction come from a historical usage perspective. A typical bicycle pump requires the user to push and pull the handle to compress the air for the tire, hence, it's a pump, because it's like a water pump or oil pump.
A compressor is a standalone thing that has no obvious push-pull behavior, since it's all internally concealed by the housing, hence, it's a compressor.
TTFN
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RE: word definition question on pump/compressor
Positive Displacement Pumps are always called pumps where we are.
The rest are often interchanged:
Centrifugal pumps are also called compressors.
Screw pumps are also called screw compressors.
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