The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 12, 1989
Filed:
Nov. 01, 1988
Lionel F Durand, Fontaine la Mallet, FR;
Xavier R Lore, Le Havre, FR;
Societe anonyme dite Hispano-Suiza, Saint-Cloud, FR;
Abstract
A thrust reversing system acting on a cold flow air duct of a turbofan-type turbojet engine is disclosed wherein the thrust reversing doors conform to a turbojet engine housing formed as a body revolution about a central longitudinal axis. The thrust reversing doors function to selectively divert the air passing through the cold flow air duct into a reverse thrust direction and also serve to vary the cross-section of the air duct. When the thrust reversing doors are in the forward thrust position, the downstream edges of the doors may be adjusted in a radial direction to vary the cross-section of the duct. The thrust reversing door is pivotable about a pair of axes, which may extend generally transverse to the longitudinal axis of the engine. The door is pivotally attached to a pair of link arms by a primary pivot which defines the first pivot axis. The link arms are attached to a fixed portion of a turbojet engine structure by a secondary pivot which define the second pivot axis. Individual actuators are provided for moving the door about the first pivot axis and for moving the link arms about the second pivot axis.