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Machine translation
1. (WO1980002863) EJECTOR
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1980/002863    International Application No.:    PCT/SE1980/000168
Publication Date: 24.12.1980 International Filing Date: 12.06.1980
IPC:
F04F 5/22 (2006.01)
Applicants:
Inventors:
Priority Data:
7905309 15.06.1979 SE
Title (EN) EJECTOR
(FR) EJECTEUR
Abstract: front page image
(EN)Multi-ejector having at least one set of between two and four nozzles (7-10) arranged in series in order of size in the flow direction, the smallest nozzle (7) constituting the first nozzle. The novel feature of the present multi-ejector resides in the fact that by using the below given connections between the inlet and outlet diameters of the nozzles as well as the distances between adjacent nozzles starting from the inlet diameter (a) of the first nozzle (7) there have been obtained negative pressures amounting to between 7 and 10% of actual air pressure when using a positive pressure of between 3.7 and 6.0 kilopounds per square centimeters. Nozzle Inlet Outlet Distances to Diameter Diameter succeeding nozzles First (7) a 1.5a 0a Second (8) 2.1-2.2a 2.3-2.4a 5a Third (9) 3.6-3.7a 4.0-4.1a 2.5a Fourth (10) 4.5-4.6a 5.6-5.7a
(FR)Un ejecteur dit multiple ayant au moins un groupe de deux a quatre ajutages (7-10) disposes en serie suivant l"ordre des dimensions dans le sens d"ecoulement, le plus petit ajutage (7) constituant le premier ajutage. La caracteristique nouvelle de ce multi-ejecteur reside dans le fait qu"en utilisant les relations donnees ci-dessous entre les diametres d"entree et sortie des ajutages ainsi que les distances entre les ajutages adjacents en commencant a partir du diametre d"entree (a) du premier ajutage (7) on obtient des pressions negatives allant de 7 a 10% de la pression reelle de l"air lorsque l"on utilise une pression positive de 3,7 a 6,0 kilolivres par centimetre carre. Ajutage Diametre Diametre Distances aux d"entree de sortie ajutages successifs Premier (7) a 1,5a Oa Second (8) 2,1-2,2a 2,3-2,4a 5a Troisieme (9) 3,6-3,7a 4,0-4,1a 2,5a Quatrieme (10) 4,5-4,6a 5,6-5,7a
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)