Eaton Intelligent Power Limited

Eaton Corporation

Michael John Froehlich

Matthew Gareld Swartzlander

Michael Lee Killian

Kartikeya K Mahalatkar

Matthew James Fortini

Gopal Kishanrao Kulkarni

Kevin Eric Portella

Sheetalkumar Patil

Shravani Yerrabothu

Tanille Jean Paniogue

Philip Michael Kline

Michael E Coates

David L Bonesteel

Leslie L Ecklund

Sunil Kumar Kunche

Timothy Michael Kish

Andrew Scott Meyers

Girish Sudhir Kulkarni

Rotors formed by an additive manufacturing process are presented. In one example, a rotor includes a monolithically formed rotor body and a plurality of helically arranged lobes formed from a first material, wherein each of the plurality of lobes defines an internal cavity between an outer surface and a central aperture.

Additively manufactured rotors for superchargers and expanders

Rotors formed by an additive manufacturing process are presented. In one example, a method of making a rotor is presented including defining a printing order for the application of a first material, and creating a plurality of lobes arranged helically about a central opening or a shaft by adding a first material in the printing order, wherein each of the plurality of lobes defines an outer surface.

A thermal abatement system comprises an axial inlet, radial outlet supercharger. A main case comprises at least two rotor bores, an inlet plane and an outlet plane. The inlet plane is perpendicular to the outlet plane. An inlet wall comprises an inner surface. Two rotor mounting recesses are in the inner surface, and the inlet wall is parallel to the inlet plane. An outlet is in the outlet plane. An inlet is in the inlet plane. At least two rotors are configured to move air from the inlet to the outlet. The main case comprises at least two backflow ports. An intercooler is connected to receive air expelled from the supercharger, to cool the received air, and to expel the cooled air to the at least two back flow ports.

Thermal abatement systems

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 supercharger outlet resonator comprises a housing, a first surface comprising a first opening and a housing axis bisecting the first opening, and a second surface comprising a second opening, the second surface located parallel to the first surface. A channel is perpendicular to the housing axis and connects the first opening to the second opening. The channel comprises at least one sidewall. An envelope is fluidly separated from the channel by the at least one sidewall, the envelope at least partially surrounds the channel, and the envelope extends from the first surface to the second surface. The envelope comprises a third opening and at least one second sidewall. A noise-reducing material located on the housing.

Supercharger outlet resonator

A hollow poppet valve (,) is disclosed, in which a stem portion (,) includes a flared fillet portion (,), having a wall thickness (T), and a downwardly-extending cylindrical portion (,), having a cylindrical external surface (,). In the main embodiment, the valve includes a cap member (,) defining a seat face (,), and a cylindrical internal surface (,), the internal and external surfaces (,) being closely spaced apart, defining an interface having an axial length (L), and being consumed by a weld (,). Preferably, the length (L) of the weld (,) is equal to at least 1.1 times the thickness (T). The fillet portion (,) defines an internal fillet radius (R,), greater than 0.3 times the thickness (T), and near the radius (R,) is a transition region (TR). The present invention improves fatigue strength of the poppet valve by separating the transition region (TR) from the weld (,) so that there is overlap for no more than a minor portion of the weld.

Ultra light engine valve and method of welding cap thereto

Growing community of inventors

Farmington Hills, MI, United States of America

Michael John Froehlich