Borgwarner Inc.

American Axle & Manufacturing, Inc.

Yogesh Mehta

Wei Ping Li

Jeffrey J Ronning

Thomas James Oetjens

Ravi S Desai

Arun Narayanan

Susan M Stroope

Lars Y Hessman

Sue Stroope

A transfer case includes a primary shaft, a secondary shaft radially offset from the primary shaft, and a torque transfer mechanism. The primary shaft includes a central channel and an inclined fluid channel. The torque transfer mechanism is configured to selectively transfer torque from the primary shaft to the secondary shaft, and includes a primary sprocket coupled to the primary shaft for transferring torque to the secondary shaft. The inclined fluid channel is associated with the primary sprocket, and includes an outlet that axially overlaps the primary sprocket.

Transfer case with primary shaft having inclined fluid channels

A rotor lamination for an electric motor includes a body and a plurality of tangs. The body defines a shaft aperture, which defines a rotor axis, a plurality of flux directing aperture (FDA) sets, and a plurality of mass reduction apertures that are formed through the body. The FDA sets are spaced circumferentially about the body and each includes one or more apertures that are configured to receive a permanent magnet therein and/or form a flux barrier. The mass reduction apertures are disposed radially between the shaft aperture and the plurality of flux directing aperture sets. Each of the tangs is coupled to the body and extends radially inward into the shaft aperture. Each of the tangs has a pair of side walls that are disposed about a first centerline that intersects the rotor axis and an associated one of the mass reduction apertures that is disposed radially outwardly therefrom.

Rotor lamination and related rotor and electric motor incorporating same

An electric motor can include a stator positioning device. First and second housing bodies can define a motor cavity. The stator can be disposed about the rotor within the motor cavity. The stator positioning device can include a plurality of contact members, and a plurality of cover members. The contact members can cooperate to form an annular contact ring that is coaxial with an output axis and has a first side and a second side. The first side can be in contact with a first end of the stator core. The cover members can cooperate to form an annular cover ring that is coaxial with the axis and coupled to the second side of the contact ring. The cover ring can include a flange that extends radially outward of the contact ring and is axially between the first and second housing bodies to inhibit axial movement of the cover ring.

Motor and stator crush resistance device

A method for reducing NVH in a vehicle having the steps of providing at least one repeating event, replicating at least one component, and delaying at least one equivalent part. The repeating event is a complete cycle, such that the repeating event ends when the cycle begins to repeat itself. The component is replicated at least one time so that at least one equivalent part is formed. The equivalent part is delayed with respect to the component by angularly positioning the equivalent part with respect to the component in a predetermined way, such that at least one harmonic in the NVH-spectra is reduced during the component's repeating event and the equivalent part's repeating event in operation.

Growing community of inventors

Rochester Hills, MI, United States of America

Yogesh Mehta