| 摘要 |
PROBLEM TO BE SOLVED: To reduce quantity of oil mixed in working fluid delivered from a rotary type fluid machine to the external so as to improve reliability of the rotary type fluid machine, and reduce influence of oil to systems for a refrigerating cycle or the like. SOLUTION: This rotary type fluid machine, disposed in a sealed container 1, is provided with a cylinder 5, a shaft 4, a roller 6 rotatably engaged with an eccentric part 4a of the shaft to make eccentric rotary movement, a vane 9 installed on a vane groove 5b in the cylinder to reciprocate along the vane groove, getting in contact with the roller 6 at a tip, and a spring 10 to press the vane 9 to the roller 6. An intake chamber 7 and a compression chamber 8 are formed as enclosed by the roller 6, an inner wall 5a of the cylinder, and the vane 9. Diametric width W of the roller 6 is more than three times of eccentric quantity e from an axis L1 of the shaft 4 to an axis L2 of the eccentric part 4a. COPYRIGHT: (C)2006,JPO&NCIPI
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