Title: Nozzles for gas turbine engines

Abstract: A variable area convergent/divergent iris nozzle for a gas turbine engine has a plurality of interdigitated master and slave petals. Each master petal has a pair of axially spaced rollers which run on guide tracks mounted on the engine jet pipe. A pivotable link connects the upstream end of each master petal to a unison ring which is axially movable to translate the petals thereby varying the area of the nozzle.

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Inventors: Nightingale, Douglas John (Bristol, EN)

Application Number: 676411
Filing Date: 1976-04-13
Publication_date: 1977-09-20
Assignee: Rolls-Royce (1971) Limited (EN)
Primary Class(es): 239/265.39
Other Classes:
US Patent Ref:

2870600	Jan, 1959	Brown	239/265.
3004385	Oct, 1961	Spear, Jr. et al.	239/265.
3386248	Jun, 1968	Pike et al.	239/265.
3599875	Aug, 1971	Wynosky et al.	239/265.
3778009	Dec, 1973	Jones	244/42.
3814325	Jun, 1974	McCardl, Jr. et al.	239/265.

Other Refs:
Primary Examiner: Blunk, Evon C.
Assistant Examiner: Kashnikow, Andres
Attorney: Stevens, Davis, Miller & Mosher