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The ac system may be low on Freon. Check the pressure with a gauge. If the pressure is ok then check the ac relay, as they can be intermittent.

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Q: Why would the AC compressor turn on and off repeatedly on a 99 Olds Aurora resulting in no cooling little on pass side System is pressurized but when compressor turns off pressure rises to 65?
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If the AC compressor clutch does not kick in and the relay and fuse are ok what could be the problem?

The clutch receives it's signal to engage from a pressure switch in the system. If there is insufficient refrigerant in the system the pressure switch will not close resulting in no power at the compressor clutch to make it engage.


How the compressor working?

Refrigerant enters the compressor inlet as a low pressure vapor. The compressor increases the pressure, and discharges it as a high pressure vapor.


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it increase the pressure of pressurized gus


Why doesnt pressure exert on gasses?

You have a misconception... Pressure can be definitely exerted on gas. You might have heard of air compressor? Pneumatic cylinder? these elements exert pressure on air(Gas). Free air from atmosphere is sucked inside then pressurized & used for many applications. Please go through working principles of these elements.


What would be the problem if the air conditioning compressor clutch switches on and off repeatedly on my 1999 Chevy Prizm?

It's almost certainly low refrigerant. When the compressor turns on the low pressure side is evacuated, resulting in refrigerant pressure that is low enough to turn off the low pressure switch. As soon as the refrigerant leaks back through from the high side to the low side, the pressure goes up enough to trip the low pressure switch back on, allowing the compressor to run briefly. Just add some refrigerant and you will solve the problem. Most auto parts retail stores will sell you a kit that lets you add a little refrigerant. Add a can to your AC and see how it runs. Use a gauge to add enough for the system to operate at it's optimal level.


When recharging your 95 Buick century from emptyhow do you get the compressor to cycle because you can't find the low pressure switch to jump to make work?

First off let me say that I cannot advise doing this in the first place. That said: With a pressurized canister of refrigerant connected to the low side service port, you won't need to jump the pressure switch unless the switch is broken. Pressure in the canister will be high enough to close the pressure switch and allow the compressor clutch to engage.


Why is spacecraft pressurized?

Pressurized only if pressure is needed, especially when it has humans or lives in it. Else the body will burst or ooze out blood.


What is jet engine engine pressure ratio?

The pressure ratio in jet engines is the ratio of pressure between the entrance of the compressor and the exit of the compressor.


What is the concept of a multi spool drive in a gas turbine engine?

The area available for flow along the length of the Compressors are chosen so that it decreases along the length of the compressor, due to increase in density as air gets compressed across the stages. The cross sectional area distribution across the length of the compressor is chosen for design conditions. At lower rotational speeds of the compressor, the density increase is limited as the pressure rise is very less and flow accelerates in a converging duct resulting in higher velocities in the exit. This problem is severe resulting in high machine vibration and possible component failure for a compressor designed to produce pressure ratio of over 8:1 in a single shaft. Starting the compressor (and hence the engine) becomes a problem then. To overcome this, two shaft arrangement is used so that high pressure compressor rotates at higher speeds, thereby splitting the pressure rise between the spools to alleviate this issue. High pressure compressor and Low pressure compressor are aerodynamically coupled instead of mechanical coupling. Hence HPC drives the LPC by demanding mass flow or spilling it in to bypass. Posted by Kishore C on 16th May 2013


What is the difference between an air conditioning compressor and an air conditioning condenser?

The compressor is a pump. Its job is to raise the pressure of the refrigerant and push it around the system. The condensor's job is to cool the pressurized refrigerant so it can condense into a liquid. It usually looks like a bunch of tubing with attached aluminum fins, like the radiator on your car.


How do you calculate pressure ratio of compressor?

Inlet pressure/discharge pressure


What is pressure in crankcase of reciprocating compressor?

...It will be what ever your suction pressure is.