公开(公告)号：CA2250060A1

公开(公告)日：1997-10-16

申请号：CA2250060

申请日：1997-04-07

Applicant: UNITED TECHNOLOGIES CORP

Inventor： ZAGER MICHAEL ,  CHRISTIANS DOUGLAS L ,  DREW DIANE G ,  HARRIS MARK L ,  KLINE ERIN G

IPC: B64D13/08 ,  B64D13/06 ,  F24F3/06 ,  F24F13/08

Abstract: An integrated environmental control system (10) is disclosed for providing conditioned supply air to loads such as a passenger cabin (56) of an aircraft. The system comprises at least two shafts (70, 78), each shaft having a fan (72, 80), compressor (74, 82), and turbine (76, 84) mechanically secured to the shaft (70, 78); common heat transfer components including primary (86) and secondary (88) heat exchangers, a reheater (90), and a condenser (92) with a water collector (130); fluid transfer lines that deliver the supply air separately through the compressors and turbines of each shaft (70, 78) and deliver the supply air in common through the common heat transfer components (86, 88, 90) to the load; and shutoff valves (96, 98) secured in fluid communication with each turbine (76, 84). Upon interruption in the the flow of cooled supply air out of a particular turbine (76, 84) secured to any of the shafts (70, 78), a shutoff valve (96, 98) shuts off transfer of the supply air to that particular turbine (76, 84) on that interrupted shaft (76, 78) and the remaining shafts and their respective fans (72, 80), compressors (74, 82), turbines (76, 84), and the common heat transfer components (86, 88, 90) continue to receive, condition and deliver the supply air to the load in a redundant operating mode.

公开(公告)号：CA2208361A1

公开(公告)日：1996-07-04

申请号：CA2208361

申请日：1995-12-20

Applicant: UNITED TECHNOLOGIES CORP

Inventor： CHRISTIANS DOUGLAS L ,  DREW DIANE G

IPC: B08B3/02 ,  B64D13/06 ,  G05D23/19 ,  B64D13/08

Abstract: A dual-pack, aircraft environmental control system (100) has each pack (104, 108) dedicated to providing a temperature-controlled air supply to a corresponding compartment (144, 148), either the crew (144) or passenger (148), of the aircraft. Each refrigeration pack (104, 108) is fed hot, compressed bleed air (176, 200) from an associated turbine engine (128, 132) on the aircraft. During normal operation, the pack associated (104, 108) with a particular compartment (144, 148) on the aircraft provides the air supply with independent temperature control to that compartment. However, during failure of one of the refrigeration packs (104, 108) and the resulting operation of the other pack, environmental control system (100) is able to provide independent temperature control of the air supplied to each compartment (144, 148).