Rotary expansible chamber devices – Working member has planetary or planetating movement – With relatively movable partition member
Patent
1983-11-30
1986-10-21
Andrews, Melvyn J.
Rotary expansible chamber devices
Working member has planetary or planetating movement
With relatively movable partition member
418179, F04C 1500
Patent
active
046183175
ABSTRACT:
A rotary-type fluid compressor is disclosed. The compressor includes a housing having a vane groove therein which is fitted with a vane. The vane is comprised of a specific soft nitrided hardened steel material which includes 0.50 to 1.30% carbon by weight, 11.0 to 20.0% chromium by weight, with the balance being Fe. The hardened steel material can be further improved by the inclusion of one or both of 0.1 to 1.50% Mo and/or 0.07 to 0.15% by weight of V. Specific characteristics relating to the mating member over which the vane slides are also disclosed. Due to the particular material utilized for producing the vane and the characteristics of the mating member over which the vane slides, improved results are obtained with respect to wear resistance.
REFERENCES:
patent: 2176388 (1939-10-01), Bochmann
patent: 2312655 (1943-03-01), Lauck
patent: 2345975 (1944-04-01), Herman
patent: 3033180 (1962-05-01), Bentele
patent: 3245387 (1966-04-01), Froede
patent: 4225294 (1980-09-01), Kakuwa et al.
"Standard Stainless and Heat Resisting Steels", 1a Iron and Steels, Metal Progress--Mid-Jun. 1978, pp. 60-63, 70-73.
Andrews Melvyn J.
Nippon Piston Ring Co. Ltd.
Zimmerman John J.
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