Fluid proportioning system.

摘要

Fluid proportioning system for proportioning a fluid intermittently at various places. This fluid comes from a storage point and is added by an intermittently operating pump to a proportioner, which feeds a fixed volume of fluid to an outlet more or less independently of the pressure. For returning the reciprocating piston present in the proportioner, use is made of a further fluid which is connected to the proportioner by means of a further inlet line. A forced return movement of the piston is thereby achieved. Proportioning of fluid is realised by the proportioning fluid itself whilst return movement in the proportioner of the piston is realized by the control fluid. <IMAGE>