The Penn State Research Foundation

Lee Gorny

Qiming Zhang

Jiping Cheng

Gary H Koopmann

Baojin Chu

Xinyu Li

Dean E Capone

Sheng-Guo Lu

Bret P Neese

Cooling devices (i.e., refrigerators or heat pumps) based on polymers which exhibit a temperature change upon application or removal of an electrical field or voltage, (e.g., fluoropolymers or crosslinked fluoropolymers that exhibit electrocaloric effect).

Polymer-based electrocaloric cooling devices

A fan system includes a rotor supported for rotation about a fan axis. The rotor has a central hub and a plurality of blades each extending outwardly from the hub to a tip. The rotor blades define a rotor plane perpendicular to the fan axis. A first acoustic resonator has an opening disposed on a first side of the rotor plane and a second acoustic resonator has an opening disposed on a second side of the rotor plane. The acoustic resonators are configured to provide a dipole resonator system operable to at least partially reduce a blade pass frequency tone in an upstream and a downstream direction simultaneously.

Dipole flow driven resonators for fan noise mitigation

Growing community of inventors

State College, PA, United States of America

Lee Gorny