Plasma deposited rider rings for hot displacer

Details Plasma deposited rider rings for hot displacer Plasma deposited rider rings for hot displacer

1975-03-10

1976-09-21

King, Lloyd L.

Refrigeration

Gas compression, heat regeneration and expansion, e.g.,...

295272, 2915663, 427 34, F25B 900

Patent

active

039811557

ABSTRACT:
A hot cylinder for a cryogenic refrigerator having two plasma spray deposited rider rings of a corrosion and abrasion resistant material provided in the rider ring grooves, wherein the rider rings are machined to the desired diameter and width after deposition. The rider rings have gas flow flats machined on their outer surface.

REFERENCES:
patent: 3080643 (1963-03-01), Hanink et al.
patent: 3133341 (1964-05-01), Marien
patent: 3205668 (1965-09-01), Gifford
patent: 3364675 (1968-01-01), Dorer
patent: 3620029 (1971-11-01), Longsworth
patent: 3717004 (1973-02-01), O'Neil
patent: 3802211 (1974-04-01), Bamberg et al.
patent: 3938814 (1976-02-01), Cromwell

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