Industrial Technologies and Services, LLC

Ingersoll-rand Industrial U.s., Inc.

Gardner Denver, Inc.

Taylor Stratman

Luke Gray

Brent Ransdell

Daniel Peana

Bernard Conley

A compressor design includes a male rotor () having one or more helical lobes () and a female rotor () having one or more helical grooves (). The male rotor is mounted on a first shaft and the female rotor is mounted on a second shaft. The male rotor is positioned in a first section of a chamber and the female rotor is positioned in a second section of the chamber. Fluid enters the chamber at an inlet, and when the rotors are driven, the lobes of the male rotor fit into the grooves of the female rotor, causing compression and movement of the fluid towards an outlet or discharge end where the compressed fluid is discharged. The configuration of the lobe and groove helix, the lobe and groove profile, and the outer diameter of the rotors can be varied in different combinations to form different rotors.

Complex screw rotors with a central circular cross section connecting right-hand and left-hand sections of the rotors

A fluid compressor system has a scavenge loss limiter that increases the efficiency of the fluid compressor system by reducing the compressed working fluid recirculated into the airend through a scavenge flow. The scavenge loss limiter includes a scavenge hole positioned at a discharge end face of a rotor cavity of the compressor housing. As a rotor of the compressor system rotates, the rotor may intermittently restrict the free-flowing scavenge flow returning from a lubricant separation tank. The rotor may be a male rotor having a plurality of male lobes. As the discharge end clearance between the rotor and the discharge end face is tightly controlled and monitored, a better control of the scavenge flow returning to the rotor cavity is achieved.

Scavenge loss limiter for a rotary compressor

Complex screw rotors having multiple helical profiles joined by a centeral portion with a pocket

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Quincy, IL, United States of America

Taylor Stratman