Definition, pumps/compressors, was ?A/C questions ...
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Definition, pumps/compressors, was ?A/C questions ...



That's not picky, it is very informative. A pump is a pump and a compressor is 
a compressor. Now I have a question, what is a fradient?

Paul

In a message dated 8/31/2004 8:41:08 PM Eastern Daylight Time, 
dardal@xxxxxxxxxxxxxxx writes:

>No argument on the useful info here.  I don't want to be too picky, but in 
>mech.
>engineering terminology, a compressor is a device that "motivates" flow of a
>compressible fluid (gas), whereas a pump operates an incompressible fluid. 
>When R134 or R12 enters the AC compressor (not pump), its a compressible gas,
>and when it exits, its still a gas, just a bunch hotter and compressed ... gas.
> The water pump is a "pump" because liquid water comes in, and liquid water
>comes out, at the same density.  Same with the power steering pump.  Even
>though the pressure can go up by 500 or more psi, the density does not change,
>or the increase is minute.  Compressors usually require a lot more power than
>pumps, because the working fluid "shrinks" as it gets compressed, and also
>create more heat.  The incmompressible fluid in a pump behaves itself better,
>and as a result, pumps can achieve very large pressure fradients with not too
>much power, and generating not as much heat.
>
>D^2
>
>Quoting Kenyon Wills <imperialist1960@xxxxxxxxx>:
>
>> You are a brave man, or one desperately seeking air conditioning.  I have
>> avoided the AutoTemp II unit on my car, so can't answer all of those
>> questions, but regarding the AC pump:
>
>
>
>-----------------  http://www.imperialclub.com  -----------------
>This message was sent to you by the Imperial Mailing List. Please 
>reply to mailing-list@xxxxxxxxxxxxxxxx and your response will be 
>shared with everyone. Private messages (and attachments) for the
>Administrators should be sent to webmaster@xxxxxxxxxxxxxxxx
>To UN-SUBSCRIBE, go to http://imperialclub.com/unsubscribe.htm
>
>


-----------------  http://www.imperialclub.com  -----------------
This message was sent to you by the Imperial Mailing List. Please 
reply to mailing-list@xxxxxxxxxxxxxxxx and your response will be 
shared with everyone. Private messages (and attachments) for the
Administrators should be sent to webmaster@xxxxxxxxxxxxxxxx
To UN-SUBSCRIBE, go to http://imperialclub.com/unsubscribe.htm



Home Back to the Home of the Forward Look Network


Copyright © The Forward Look Network. All rights reserved.

Opinions expressed in posts reflect the views of their respective authors.
This site contains affiliate links for which we may be compensated.