The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 09, 2000
Filed:
Dec. 09, 1997
Applicant:
Inventors:
James E Strang, Fountain Valley, CA (US);
Kim E Linnett, Palos Verdes Estates, CA (US);
Dan Matulich, Rolling Hills Estates, CA (US);
Assignee:
AlliedSignal Inc., Morristown, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B / ;
U.S. Cl.
CPC ...
62 87 ; 62172 ; 62402 ;
Abstract
An environmental control system includes an air cycle machine, an electrical machine coupled to the air cycle machine, and a controller for the electrical machine. The controller can cause electrical energy to be extracted from the electrical machine whenever cooling capacity and/or airflow rate of the air cycle machine are greater than necessary. The electrical machine can also be operated as a motor to increase the airflow rate and cooling capacity of the air cycle machine.