Rotary expansible chamber devices – Heat exchange or non-working fluid lubricating or sealing – Non-working fluid passage in inner working or reacting member
Patent
1992-01-30
1992-09-29
Bertsch, Richard A.
Rotary expansible chamber devices
Heat exchange or non-working fluid lubricating or sealing
Non-working fluid passage in inner working or reacting member
418 94, 418 97, 418220, 417356, F04B 3900
Patent
active
051510219
ABSTRACT:
In a fluid compressor, a cylinder is arranged within a sealed casing. A piston having a spiral groove is placed within the cylinder. The piston is made eccentric to the cylinder such that part of the piston is put in contact with the inner peripheral surface of the cylinder. The piston and the cylinder are rotated relative to each other. A spiral blade is fitted in the spiral groove. The blade is put in contact with the inner peripheral surface of the cylinder, and forming a plurality of working chambers. The blade freely projects from and retreats in the groove. A fluid to be compressed is sucked in the working chambers. The compressed fluid is discharged from a discharge hole portion into the sealed casing. A support mechanism supports the cylinder and one of bearing members for supporting shaft portions of the piston. The support mechanism receives the lubricating oil mixed in the high-pressure compressed fluid discharged from the discharge hole portion. Accordingly, the lubricating oil dispersed from the discharge hole portion is not exhausted to the outside of the sealed casing through an exhaust pipe.
REFERENCES:
patent: 2401189 (1946-05-01), Quiroz
patent: 4802827 (1989-02-01), Fujiwara et al.
patent: 4871304 (1989-10-01), Iida et al.
patent: 4872820 (1989-10-01), Iida et al.
patent: 4875842 (1989-10-01), Iida et al.
patent: 4902205 (1990-02-01), DaCosta et al.
patent: 5062778 (1991-11-01), Hattori et al.
Fujiwara Takayoshi
Honma Hisanori
Bertsch Richard A.
Cavanaugh David L.
Kabushiki Kaisha Toshiba
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