Variable displacement diaphragm pump

Details Variable displacement diaphragm pump Variable displacement diaphragm pump

F - Mech Eng,Light,Heat,Weapons

04

B

103/32

F04B 49/00 (2006.01) F04B 43/02 (2006.01)

Patent

CA 1334494

A power source (14) rotates an eccentric (20) engaged within the center of a relatively large drive roller (22) to rotate the drive roller while simultaneously orbiting the center of the drive roller about a circular path so as to cyclically advance and retract from piston assemblies (24) located within pump assemblies (16a-16d). Rotation of the eccentric (20) causes each piston assembly (24) to cyclically advance against and retract from a flexible diaphragm (26) to cause fluid entering the pump assembly to be forced out under pressure Each diaphragm (26) is "backed" by a spring-loaded support (27) that resiliently pushes against the side of the diaphragm opposite the piston assembly.

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