To provide a highly efficient and silent fluid machine which is reduced in wearing in a sealing member and in an opposite surface, has long-term reliability and high airtightness, and is reduced in the sliding loss of friction.
The fluid machine equipped with a helical compression mechanism is provided with an annular seal member which is installed in an annular groove formed on the end surface at the end side of a roller and one of a bearing surface of a bearing member to seal the end surface of the roller and the bearing surface of the bearing member. The seal member comprises a seal material composed of two lips to form a seal surface having a cross sectional U-shape and facing each other, and a heel to connect the two lips, and a spring installed inside the seal material. Out of the two lips, a projection is formed on the sliding surface of the lip at the opposite groove bottom side.
OKUDA MASAYUKI
YOSHIDA MASATOSHI
KOYAMA SATOSHI
FUKUDA TAKESHI
SHIMODA MORIAKI
Shunguchi Sekiguchi
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