US Patent No. 9,832,910

RAM AIR FAN AND POWER ELECTRONICS COOLING SYSTEMS


Patent No. 9,832,910
Issue Date November 28, 2017
Title Ram Air Fan And Power Electronics Cooling Systems
Inventorship Debabrata Pal, Hoffman Estates, IL (US)
Assignee HAMILTON SUNDSTRAND CORPORATION, Charlotte, NC (US)

Claim of US Patent No. 9,832,910

1. A power electronics cooling system comprising:
a ram air fan comprising an air inlet and a blade mechanically coupled to a motor; and
a first pump motor coupled to a first cooling pump, wherein the first pump motor is electronically coupled to the motor of
the ram air fan,

wherein the first cooling pump pumps a first cooling liquid through a heat exchanger, wherein the blade forces air through
the heat exchanger, wherein the first cooling liquid is pumped through the heat exchanger and to a first electronics package,
and wherein the first electronics package comprises a first motor controller.