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Thread: Slide Valve Operation
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30-07-2012, 02:07 PM #1
Slide Valve Operation
Hi - I'm new to this board but I want to know how the 'internals' of the compressor slide work. I understand the general overview.. in that by using the capacity slide valve the effect length of the rotor is reduced and thus less refrigerant can be compressed reducing the overall flow rate.
Where I get stuck is understanding how the Vi changes, or if at all, when a compressor begins to unload.
Refer to this picture.. of a Variable Vi MYCOM Compressor. Would the Vi not change as the slide valve moves to the right (unloads). Basically, would Vi = L not essentially become Vi = M as it begins to unload? I thought the slide stop just dictated the Vi at full load.. but i've had conflicting reports with MYCOM technical support.Untitled.jpg
Any help would be greatly appreciated as not knowing is driving me mad.