Expansible chamber devices – Relatively movable working members – Interconnected with common rotatable shaft
Patent
1991-12-12
1993-05-04
Look, Edward K.
Expansible chamber devices
Relatively movable working members
Interconnected with common rotatable shaft
417273, F01B 100, F04B 104
Patent
active
052077713
ABSTRACT:
A radial plunger type pump includes a housing, an eccentric cam shaft rotatably supported by the housing, a pair of bearings for supporting the cam shaft in the housing, a radial plunger reciprocally disposed in a cylinder of the housing and reciprocating within the cylinder of the housing in accordance with the eccentric rotation of a cam portion of the eccentric cam shaft. The pump further includes a pair of counterweights disposed in spaces provided between the bearings and the cam portion of the eccentric cam shaft, the pair of counterweights including a counterweight portion for balancing the rotation of the eccentric cam shaft and washer portion for preventing the plunger from axial movement wherein the counterweight portion and and washer portion are integrally secured and wherein the counterweights are engaged with the eccentric cam shaft for preventing the relative rotation therewith.
REFERENCES:
patent: 361598 (1887-04-01), Rosenkranz
patent: 3910164 (1975-10-01), Swadner et al.
patent: 4915595 (1990-04-01), Nelson et al.
Sugisaw Masakazu
Watanabe Yoshio
Aisin Seiki Kabushiki Kaisha
Look Edward K.
Ryznic John
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