Eaton Corporation

Eaton Intelligent Power Limited

Timothy Michael Kish

Matthew Gareld Swartzlander

Michael John Froehlich

William Bruce Witherspoon

Kenneth Arthur Rienas

TouXia Kue

John Scott Pierce

Thomas Walsh

A method of treating, tuning, assembling, and/or overhauling a twin rotor device () includes applying a coating material () on an internal set of working surfaces () of the twin rotor device when at least partially assembled. The coating may be factory or field applied to a new or used twin rotor device. The working surfaces may be uncoated or previously coated and may be built-up as the coating material forms a coating () on at least some of the working surfaces. Manufacturing variations of a pair of rotors () and a housing () may be compensated by the coating. One or more performance characteristics of the twin rotor device may be improved by the coating, and variation between a series of twin rotor device may be reduced or substantially eliminated. The coating may reduce internal leakage and increase volumetric efficiency of the twin rotor device. The twin rotor device may be a supercharger, a screw compressor, or other twin rotor device.

Twin rotor devices with internal clearances reduced by a coating after assembly, a coating system, and methods

A coupling assembly arranged between an input shaft and a rotor shaft of a supercharger can include a first coupling, a second coupling, a central hub and a plurality of coupler pins. The first coupling can be mounted for concurrent rotation with the input shaft. The second coupling can be mounted for concurrent rotation with the rotor shaft. The central hub can be disposed intermediate the first and second couplings. The central hub defines central hub bores therein. A plurality of coupler pins can be received in the central hub bores. A first plurality of elastomeric inserts can receive first portions of the plurality of coupler pins. A second plurality of elastomeric inserts can receive second portions of the plurality of coupler pins. The first and second elastomeric inserts can provide dampening between (i) the first coupling and the central hub and (ii) the second coupling and the central hub.

Coupling for supercharger

Growing community of inventors

Kalamazoo, MI, United States of America

Timothy Michael Kish