Adjustable cross-section, convergent/divergent jet nozzle

• Main Author: GERARD ERNEST ANDRE JOURDAIN, FRANCOIS MARIE PAUL MARLIN ET JEAN MICHEL PAYEN
• Format: Patent
• Language: English; French
• Published: 05.02.1988
• Edition: 4
• Subjects: BLASTING; COMBUSTION ENGINES; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; INDEXING SCHEME FOR ASPECTS RELATING TONON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES ORJET-PROPULSION PLANTS; INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUSSUBCLASSES OF CLASSES F01-F04; JET-PROPULSION PLANTS; LIGHTING; MECHANICAL ENGINEERING; WEAPONS

Nozzle formed from a ring of inner flaps 1 and a ring of outer flaps 2. The inner flaps are formed from a convergent upstream flap 11 and a divergent downstream flap 12. The outer flaps 15 are formed from a single casing. The upstream convergent flaps 11 and downstream divergent flaps 12 are connected to each of the flaps 15 of the neighbouring outer ring 2 by two short connecting rods 24, 30. The upstream flap 11 or the downstream flap 12 carry control means 20. The controlled flaps of the inner ring are offset by one width with respect to the flaps of the outer ring. TUYERE FORMEE D'UNE COURONNE DE VOLETS INTERIEURS 1 ET D'UNE COURONNE DE VOLETS EXTERIEURS 2. LES VOLETS INTERIEURS SONT FORMES D'UN VOLET AMONT CONVERGENT 11 ET D'UN VOLET AVAL DIVERGENT 12. LES VOLETS EXTERIEURS 15 SONT FORMES D'UN CAISSON UNIQUE.LES VOLETS CONVERGENTS AMONT 11 ET DIVERGENTS AVAL 12 SONT RELIES A CHACUN DES VOLETS 15 DE LA COURONNE EXTERIEURE 2 VOISINS PAR DEUX BIELLETTES 24, 30. LE VOLET AMONT 11 OU LE VOLET AVAL 12 PORTENT DES MOYENS DE COMMANDE 20. LES VOLETS COMMANDES DE LA COURONNE INTERIEURE SONT DECALES D'UNE LARGEUR PAR RAPPORT AUX VOLETS DE LA COURONNE EXTERIEURE.