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:
Jul. 03, 2018
Filed:
Nov. 16, 2015
Textron Innovations Inc., Providence, RI (US);
Robert Glynn Wiegers, Wichita, KS (US);
Darrel Duane Hornbaker, Wichita, KS (US);
Textron Innovations Inc., Providence, RI (US);
Abstract
An Environmental Control System (ECS) which includes a heat exchanger (HX) and an air conditioning unit (ACU) upstream of the heat exchanger. The heat exchanger receives flows of hot air bled from a plurality of aircraft engines and flows of cold ambient air drawn from the aircraft exterior for use by the heat exchanger and the air conditioning unit for heating and cooling the interior cabin of the aircraft. The environmental control system may operate in one of several modes, whether the heat exchanger and air conditioning unit are operating normally or have failed. In a normal mode, the air conditioning unit and heat exchanger operate in series. In an 'ACU only' mode, the air conditioning unit operates without the heat exchanger. In an 'HX only' mode, the heat exchanger operates without the air conditioning unit. In an “ECS off” mode, both the heat exchanger and air conditioning unit are bypassed.