Single screw compressor

[US Iceman]

I know few about single screw.Maybe twin screw is better.
But, how about going to work for Vilter company???

Why does it matter which screw compressor is better? Or, for that matter is there a better compressor?

And, what does this have to do with the manufacturer and why you might want to work for them?

One month you ask about markets and product quality and then the next month you ask about working for a manufacturer?????

Asking which compressor is better is like asking a man if a woman is pretty. Some say yes, others may not (but not in front of the woman)

[SteinarN]

The subject of variable Vi is very interesting. As i have said before, i have not any experience with large and/or industrial systems. On dual screw compressors with variable Vi, i clearly see the need for fully independent movement of the capasity slide and the varable Vi slide in order to maintain the best isentropic efficiency at all pressure and load ratios. I have however got the impression that variable Vi is not fully acomplished when the compressor is running in part load. Can someone explain if this is the case and why?