Liquid dispensing method and apparatus

摘要

A method of dispensing a liquid, which handles a minimum amount of liquid without wasting it and to dispense and spray an exact amount of the liquid without precipitating solid particles. The method including the steps of regulating a flow rate of liquid in a flow passage by orifices 8 - 1, 8 - 2 while letting the liquid flow through flow passages 10^-1 and 10^-2 between syringes 5 - 1 and 5 - 2 by applying a pressure of 0.001 MPa to 10 MPa to liquid 6 including solid particles and filled in one syringe vessel 5 - 1 and by setting a pressure of liquid in the other syringe 5 - 2 at a lower level than the pressure of liquid in the syringe 5 - 1 and dispensing the liquid from the flow passage by an auto dispensing valve 1.