Research/Patents/US 5085037
US 5085037

MINIMIZING THE EFFECTS OF ICING IN THE INTAKES OF AEROSPACE PROPULSORS

Assignee

ROLLS-ROYCE PLC

Filed

Feb 17, 1989

Granted

Feb 4, 1992

Location

WARWICK EN GB

Abstract

An air intake suitable for an aerospace propulsor comprises a duct in which are provided two pirmary heat exchangers arranged in parallel relationship and a secondary heat exchanger downstream of the primary heat exchangers. The primary and secondary heat exchangers are arranged to place a cryogenic fluid in heat exchange relationship with the air flow through the duct. Icing of the primary heat exchangers is controlled by interrupting the flow of cryogenic fluid to each of the primary heat exchanger in turn. Thus while one heat exchanger is subject to ice accretion hereon, the temperature of the other increases sufficiently for de-icing thereof to occur.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

May 23, 1989

Rescinded

Aug 2, 1991

Duration

2 years, 2 months

Inventor

  • 1JOHN L. SCOTT-SCOTT

Technology Domains

Click a domain to browse all patents in this category.

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