Liquid additive metering

Details Liquid additive metering Liquid additive metering

G - Physics

05

D

50/2.1

G05D 11/00 (2006.01) F04B 13/02 (2006.01) F04B 49/12 (2006.01)

Patent

CA 2031566

Dosing apparatus for adding a matered quantity of liquid additive to slurry or other flowable material handled by a ram-type positive displacement main pump (10) includes a positive displacement metering pump (32) whose outlet (44) connects into a material carrying portion of the main pump e.g. its inlet (22). The metering pump is driven by a rocking lever (48) connecting it to the main pump ram (14) through adjustment means comprising a lead screw (62) along an arm (50) of the lever for selectively shifting a slide block (68) linked to the metering pump piston rod (42); the slide block being secured against movement on the lever arm once adjustment has been effected by clamping means (74).

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