Perfected piston pump in particular a radial-piston pump for int

Details Perfected piston pump in particular a radial-piston pump for int Perfected piston pump in particular a radial-piston pump for int

1997-12-19

1999-11-09

Nguyen, Hoang

Expansible chamber devices

Abutment connection between working member and power...

92154, 417273, 417470, F16J 110

Patent

active

059792973

ABSTRACT:
The pump has a number of cylinders arranged with their respective axes at a predetermined angular distance about a drive shaft; and a number of piss, each sliding inside a respective cylinder. The inner radial end of each piston is fitted with a pad engaging a respective flat portion of a cam rotating on an eccentric portion of the drive shaft; and, to ensure against seizure, each pad has a cavity inside which is fitted a shoe having at least one layer of self-lubricating material engaging the respective flat portion of the cam.

REFERENCES:
patent: 4222714 (1980-09-01), Dantlgraber
patent: 4512175 (1985-04-01), Kaku et al.
patent: 4673337 (1987-06-01), Miller
patent: 5375982 (1994-12-01), Joosse et al.
patent: 5382140 (1995-01-01), Eisenbacher et al.
patent: 5571243 (1996-11-01), Arnold et al.

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