Self-lubricating die cylinder

Details Self-lubricating die cylinder Self-lubricating die cylinder

1985-04-15

1987-09-08

Reger, Duane A.

Spring devices

Fluid

Expansible-contractible chamber device

92142, 92152, 184 18, F16F 900

Patent

active

046919023

ABSTRACT:
A self-lubricating die cylinder assembly is provided containing a cylinder, piston, expansion reservoir and working chamber. A lubricating oil recirculation means is provided to transport oil between the working chamber and the expansion reservoir during each of the piston strokes. A flow restrictor is provided to create a pressure differential between the two chambers during movement of the piston thus creating a jet mixture of compressible working fluid and lubricating oil spraying onto the walls of the cylinder.

REFERENCES:
patent: 918392 (1909-04-01), Talcott
patent: 1263928 (1918-04-01), Ridgway
patent: 1845933 (1932-02-01), Penberthy
patent: 1960070 (1934-05-01), Sellers
patent: 2527657 (1950-10-01), Rowletge et al.
patent: 2781632 (1957-02-01), Meijer
patent: 2815254 (1957-12-01), Soman et al.
patent: 2836349 (1958-05-01), Scheldorf
patent: 4044859 (1977-08-01), Wallis
patent: 4423859 (1984-01-01), Muller

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