Metering pump

F - Mech Eng,Light,Heat,Weapons – 04 – B

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103/46

F04B 7/00 (2006.01) F03B 13/00 (2006.01) F04B 13/00 (2006.01) F04B 49/12 (2006.01)

Patent

CA 1260761

ABSTRACT An arrangement for the volume-controlled feed of a medium, e.g. a liquid,in an outer flow system, comprising a movable pump piston and a metering chamber in connection, or connectable, to the flow system via a valve-controlled inlet and outlet for the intake and discharge respectively of the medium in time with the working cycles of the pump piston . To make possible the change between different desired feed volumes of the medium the arrangement has a wall element delimiting the volume of the metering chamber which is movable inside the metering chamber for the adjustment of the desired metering chamber volume.

516380

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