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Machine translation
1. (WO1981000312) CONSTANT FLOW RATE SUPPLYING DEVICE
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1981/000312    International Application No.:    PCT/JP1979/000186
Publication Date: 05.02.1981 International Filing Date: 12.07.1979
IPC:
G01F 1/28 (2006.01), G01F 1/30 (2006.01), G05D 7/03 (2006.01)
Applicants:
Inventors:
Priority Data:
JP79/00186 12.07.1979 WO
Title (EN) CONSTANT FLOW RATE SUPPLYING DEVICE
(FR) DISPOSITIF D"ALIMENTATION A DEBIT CONSTANT
Abstract: front page image
(EN)Powder or liquid falls down with gravity from a supplying machine. An impact type flowmeter has an impact plate (2) on which the powder or liquid is received. The impact type flowmeter converts the impact load applied on the impact plate (2) into a horizontal displacement. Two sets of nozzle flapper mechanisms which incorporate flaps (6, 6") symmetrically disposed at predetermined oblique angle with respect to the direction of the displacement. The back pressure applied to the nozzle flaps is imparted to a pneumatic circuit-switching valve (8) which produces its output to control the gate opening or motor speed of the supplying machine to thereby control the flow rate of the powder or liquid. Thus, this device can supply the powder or liquid at constant flow rate with a high accuracy, because of being isolated from the variation in the supplying pressure to the nozzle flapper mechanisms.
(FR)De la poudre ou un liquide tombe par gravite d"une machine d"alimentation. Un debitmetre du type a impact possede une plaque d"impact (2) qui recoit la poudre ou le liquide. Le debitmetre du type a impact convertit la charge d"impact appliquee sur la plaque d"impact (2) en un deplacement horizontal. Deux mecanismes d"ajutage a volets comprennent des volets (6, 6") disposes symetriquement en faisant un angle oblique predetermine par rapport au sens de deplacement. La pression inverse appliquee sur les volets des ajutages est impartie a une soupape de commutation a circuit pneumatique (8) qui produit sa sortie pour commander l"ouverture de la porte ou la vitesse du moteur de la machine d"alimentation, commandant ainsi le debit de poudre ou de liquide. Ainsi, ce dispositif peut assurer l"alimentation en poudre ou en liquide a debit constant avec une grande precision car il est isole et independant des variations de la pression d"alimentation aux mecanismes d"ajutages a volets.
Designated States:
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)