(19)
(11) EP 0 153 271 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
11.11.1987 Bulletin 1987/46

(43) Date of publication A2:
28.08.1985 Bulletin 1985/35

(21) Application number: 85730011

(22) Date of filing: 28.01.1985
(84) Designated Contracting States:
DE FR GB IT NL

(30) Priority: 30.01.1984 JP 1465984
16.02.1984 JP 2770184

(71) Applicant: MITSUBISHI JUKOGYO KABUSHIKI KAISHA
 ()

(72) Inventors:
  • Yamaguchi, Shogo c/o Nagoya Machinery Works
     ()
  • Tachi, Eiji c/o Nagoya Machinery Works
     ()
  • Yoshikawa, Enichi c/o Nagoya Machinery Works
     ()

   


(54) Method and apparatus for mixing liquid


(57) The present invention relates to a method and apparatus for mixing two kinds of liquid in a predetermined ratio and more particularly to a method and apparatus for mixing liquid by using a constant volume pump. A first liquid and a second liquid are stored in tanks and maintained to a predetermined pressure, respectively. The first and second liquids are supplied to a suction side or an inlet of the constant volume pump and the second liquid supplied to the pump is measured by a measuring means to adjust it to a predetermined amount so that the first and second liquids are mixed in the predetermined ratio.
The method is suitable for mixture of beverages and for this purpose includes a method of evacuating the tank for the first liquid to eliminate oxygen contained in the first liquid. Further, the method includes a method of supplying absorption gas to the first tank with pressure in order to simultaneously perform the evacuation of oxygen from the first liquid and the absorption of gas.






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