초록 ▼

The invention concerns a process and a device for the combined conveyance and volume measuring of liquids. The conveyance is performed by imparting an overpressure or, respectively, a negative pressure to the liquid by means of a pressurized or depressurized gas cushion. A piston movable in a cylind

The invention concerns a process and a device for the combined conveyance and volume measuring of liquids. The conveyance is performed by imparting an overpressure or, respectively, a negative pressure to the liquid by means of a pressurized or depressurized gas cushion. A piston movable in a cylinder which is connected with a receiver containing the liquid exerts either a constant overpressure upon a gas cushion above the liquid to drive the liquid through a line connected with the receiver, or it exerts a constant negative pressure upon the gas cushion to draw the liquid from the line into the receiver. The transported volumes of the liquid are determined by the volumina covered by the piston in the course of its displacements in the cylinder.

대표청구항 ▼

[ I claim:] [1.] A process for the conveyance and measuring of a liquid running in a conveyance assembly (1) from at least one receiver (5) included in said conveyance assembly (1) in the direction of at least one receptacle external to the conveyance assembly (1) and vice versa, the conveyance bein

[ I claim:] [1.] A process for the conveyance and measuring of a liquid running in a conveyance assembly (1) from at least one receiver (5) included in said conveyance assembly (1) in the direction of at least one receptacle external to the conveyance assembly (1) and vice versa, the conveyance being effected by a drive assembly (2) connected to said conveyance assembly (1) by providing a positive or negative pressure upon a gas cushion in said at least one receiver (5) above the liquid to be conveyed, wherein said conveyance assembly (1) and said drive assembly (2) are actuated by a control and signal unit (19) and said drive assembly (2) is composed of at least one cylinder (13) having a movable piston (15) and driving means (16) suitable to controllably operate the movement of said piston (15) in said cylinder (13) such that it exerts either an isobaric positive or negative pressure and wherein the volume of the liquid transported into said conveyance assembly (1) is measured in said drive assembly (2) by determining the volumina that have been covered by said piston (15) in the course of its displacements in said cylinder (13).