Rotary expansible chamber devices – Working member has planetary or planetating movement – With relatively movable partition member
Patent
1999-05-12
2000-11-07
Denion, Thomas
Rotary expansible chamber devices
Working member has planetary or planetating movement
With relatively movable partition member
418179, 418152, F03C 200
Patent
active
06142756&
ABSTRACT:
A vane of a compressor is made of solid phase sintering material of which a sintering density is not less than 7.2g/cm.sup.3 and a hollow rate is not more than 10%, and to which CrN phase is adhered through a PVD process. A roller of the compressor is made of hardened and tempered material having a hardness equal to cast iron FC300 (specified by JIS). The roller may be made of hardened and tempered material including at least one of Ni, Cr and Mo, and having a hardness equal to cast iron FC300. The vane and roller are combined, so that a sliding section having excellent abrasion-resistance can be constructed. As a result, a rotary compressor, which employs R134a or R22 coolant as well as HFC system or HC system coolant both of which are R22 substitutes, having extremely high reliability can be realized.
REFERENCES:
patent: 5346248 (1994-09-01), Nakashima et al.
Aiba Osamu
Esumi Mototaka
Hashimoto Takeshi
Kurimoto Mitsuru
Denion Thomas
Matsushita Electric - Industrial Co., Ltd.
Trieu Theresa
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