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:
Jun. 06, 2000
Filed:
Dec. 23, 1997
Ronald E Crabtree, Sun Lakes, AZ (US);
Peter C Collins, Redondo Beach, CA (US);
Stanley C Pollitt, Rancho Palos Verdes, CA (US);
Roger R Sanger, Fountain Valley, CA (US);
Michel A Jonqueres, Torrance, CA (US);
Thomas J Kazan, Irvine, CA (US);
AlliedSignal Inc., Morristown, NJ (US);
Abstract
An environmental control system includes a single heat exchanger, a single water separator and two air cycle machines on separate spools. Cooling turbines of the air cycle machines are cascaded. Air flows through both air cycle machines during normal operation of the environmental control system. If one of the air cycle machines fails, air can be bypassed around the failed air cycle machine. Cascading allows water separation to be performed by a mid-pressure water separator located between the air cycle machines.