Research/Patents/US 5088280
US 5088280

PREVENTION OF ICING IN THE INTAKES OF AEROSPACE PROPULSORS

Assignee

ROLLS-ROYCE PLC

Filed

Feb 17, 1989

Granted

Feb 18, 1992

Location

WARWICK EN GB

Abstract

An air intake suitable for an aerospace propulsor comprises a duct which contains, in flow series, a first heat exchanger, a water separator, and a cryogen injector and a second heat exchanger. Air entering the intake is cooled by the first heat exchanger to cause the majority of the water vapor in the air to condense into water droplet form. The water droplets are then removed by the air flow by the water separator. The cryogenic injector reduces the air flow temperatures still further so that any remaining water in the air flow is converted to small dry ice crystals which do not block the second heat exchanger.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

May 24, 1989

Rescinded

Aug 2, 1991

Duration

2 years, 2 months

Inventor

  • 1JOHN L. SCOTT-SCOTT

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Back to patent indexSource: USPTO 35 USC §181 secrecy order records