Pumps – Expansible chamber type – Moving cylinder
Patent
1995-06-19
1997-04-01
Thorpe, Timothy
Pumps
Expansible chamber type
Moving cylinder
92118, F04B 1902
Patent
active
056160143
ABSTRACT:
A power grease pump having a rotary disk fixed on a base plate and rotating by a power device, and a rotary axis eccentrically mounted thereon. The pump unit includes a cylinder body with both ends being sealed and a piston assembly accommodated therein. One end of the cylinder body is pivotally mounted on a hollow column fixed on the base plate, near to the other end a plurality of longitudinal slotted holes are provided to penetrate the cylinder wall, and another longitudinally long slotted hole in which the rotary axis on the rotary disk passes and is connected with the piston assembly. A grease discharge hole located near the bottom dead center of the inner piston in corresponding piston assembly is provided on the cylinder body to penetrate the cylinder wall. A set of grease paths are provided in the piston assembly, cylinder body and hollow column, and are interconnected with one another. Thus, by rotating the rotary disk the pump assembly can be made to swing around the hollow column and sweep the grease of a grease barrel into the cylinder body while the piston assembly can be moved back and forth to squeeze out the grease in the cylinder body through the grease paths by high pressure.
REFERENCES:
patent: 1069015 (1913-07-01), Jabusch
patent: 1755318 (1930-04-01), Dinesen
patent: 2910875 (1959-11-01), Kuhnhausen
patent: 3246604 (1966-04-01), Brailsford
patent: 4285642 (1981-08-01), Komhyr
Korytnyk Peter G.
Thorpe Timothy
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