Axial (axis) and Radius (radial) explained as it pertains to scroll compressors.
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So sometimes you're gon na hear the words axial and radial it's good to know what those words mean. We talked about it with scroll compressors quite a bit. This is a cylinder, it's just the inside of a capacitor, so I'm going to use it as a demonstration, but from the center to the edge. That would be the radius.

You learned that in middle school right, that's the radius, and so this is the radial forces. The side-to-side forces on this particular cylinder and then the axial forces are along the axis, so the axis is actually what it turns on that's the center, and so that would be the up-and-down forces in a compressor so radial of the side to side forces. Axial R up and down - and so if you imagine my my hands - are the the scroll plates and a compressor, the top plate is fixed and then the bottom part oscillates a little bit. So it kind of does this and so the forces that force them together.

Side to side those would be the radial forces and the forces that force them together top to bottom. Those would be the axial forces now. Copelan talks about compliance and the ability to comply means the ability to adjust, and so, if you had some liquid refrigerant that got into the compressor, you could actually have some compliance, some movement on the side to side and the up and down or a contaminant or Something and we'll see this when we have you know very high pressure conditions. The compressor can actually go into bypass where the top plate actually moves up a little bit in it, so it can axial axially comply it can it can pop up in the case of a digital, scroll Copeland? Does that on purpose, so it uses an external solenoid when that external solenoid energizes it causes axial compliance, so it causes it to separate and that unloads the compressor it keeps it from pumping.

And then, when you de energize this Illinois, then it goes back into its normal, normal mode and functions properly so generally speaking, they're forcing them together, radially, side-to-side and they're, forcing them together actually which is top to bottom again, radius, side to side axis up and down Hope that helps.

3 thoughts on “What does axial & radial compliance mean”
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