Rotary expansible chamber devices – Working member has planetary or planetating movement – Plural working members or chambers
Patent
1980-12-15
1983-01-11
Vrablik, John J.
Rotary expansible chamber devices
Working member has planetary or planetating movement
Plural working members or chambers
13762521, F01C 110, F03C 208, F04C 210
Patent
active
043680127
ABSTRACT:
In a fluid pressure assembly having a valve disk member with substantially identical flat sides which comprises a part of a fluid valve mechanism. A valve housing, being another part of the valve mechanism, includes an integral hollow wall which provides an outer valve chamber and an inner valve chamber oppositely pressurized from fluid ports. The hollow wall axially terminates in a hollow blank surface of soft metal, being the same as that of the valve housing.
The valve disk member is treated for hardness and has a valve disk side which sealingly engages a stationary valve face of a stationary valve member and a ring disk side which sealingly rubs against the soft metal of the hollow blank surface, whereby the soft metal is wearable thereby to provide a close tolerance factor to prevent leakage.
REFERENCES:
patent: 924382 (1909-06-01), Reynolds
patent: 986284 (1911-03-01), Harkins
patent: 3288034 (1966-11-01), White, Jr. et al.
patent: 3853436 (1974-12-01), Ohrberg
patent: 3862814 (1975-01-01), Swedberg
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