Rotary expansible chamber devices – Multistage – Sliding abutment
Reexamination Certificate
2007-05-29
2007-05-29
Trieu, Theresa (Department: 3748)
Rotary expansible chamber devices
Multistage
Sliding abutment
C418S060000, C418S094000, C184S006160
Reexamination Certificate
active
10770129
ABSTRACT:
A so-called internal intermediate pressure multistage compression type rotary compressor makes it possible to prevent the pressure inside a roller from inconveniently increasing and also to permit smooth and reliable supply of oil into a cylinder of a second rotary compressing element by a relatively simple construction. A lubrication groove for providing communication between an oil bore and a low-pressure chamber in the cylinder is formed in a surface of an intermediate partitioner that is adjacent to the cylinder of the second rotary compressing element. Furthermore, a through bore for providing communication between a hermetically sealed vessel and the inside of the roller is formed in the intermediate partitioner.
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Communication—European Search Report dated Jul. 9, 2004.
Aoki Hiromasa
Futakawame Midori
Matsumoto Kenzo
Sato Kazuya
Tomiuka Akifumi
Sanyo Electric Co,. Ltd.
Trieu Theresa
Westerman, Hattori, Daniels & Adrian , LLP.
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