发明名称 |
ENVIRONMENTAL CONTROL SYSTEM SUPPLY PRECOOLER BYPASS |
摘要 |
<p>A precooler (7) for cooling compressor bleed air (38) for an environmental control system (6) includes a heat exchanger (56) in fluid communication with a source of cooling air (57) and operable for cooling the bleed air (38). A variable bypass valve (74) between a bleed air source (116) and environmental control system (6) is operable for bypassing at least a portion of the compressor bleed air (38) around the heat exchanger (56). The cooling air may be a portion of fan air (33) modulated by a variable fan air valve (76). The bleed air source may be selectable between the low pressure bleed air source (116) and a high pressure bleed air source (118). One method includes flowing the compressor bleed air (38) from a single low pressure source only and increasing thrust sufficiently to meet a minimum level of pressure of the bleed air (38) during one engine out aircraft operating condition during approach or loitering.</p> |
申请公布号 |
CA2768929(C) |
申请公布日期 |
2015.09.08 |
申请号 |
CA20122768929 |
申请日期 |
2012.02.23 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
SENNOUN, MOHAMMED EL HACIN;DINSMORE, NICHOLAS ROWE;MILLER, BRANDON WAYNE |
分类号 |
F02C9/18;B64D13/08 |
主分类号 |
F02C9/18 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|