Hamilton Sundstrand Corporation

Milan Lucic

Debabrata Pal

Craig M Beers

Darryl A Colson

John M Beck

Robert Telakowski

Paul E Hamel

Joseph Kenneth Coldwate

A ram air fan assembly includes an outer housing. An inner housing is located within the outer housing. A motor is attached to the inner housing. An inlet tube extends between the outer housing and the motor. The inlet tube includes a straight first portion and a curved second portion. At least one of the two portions includes a perforated portion.

Inlet tube design

A motor is provided including a stator core having a plurality of stator fins projecting outwardly from the stator core. A plurality of stator cooling channels is defined between adjacent stator fins. A flow mixer ring is axially aligned with the stator core and separated therefrom by an axial gap. The flow mixer ring includes a plurality of ring fins projecting inwardly from an interior surface and a plurality of ring cooling channels defined between the plurality of ring fins. The plurality of ring fins extends from a first surface over at least a portion of an axial length of the flow mixer ring.

Stator cooling channel tolerant to localized blockage

Growing community of inventors

East Windsor, CT, United States of America

Milan Lucic