Sanyo Electric Co., Ltd.

Denji Mashimo

Kazuya Sato

Hiroshi Nishikawa

Yasuo Sakamoto

Takayuki Mizuno

Takahiro Nishikawa

Kazuyoshi Sugimoto

Takahiro Nakamura

Hiroshi Kanai

Takeo Komatsubara

Eiji Fukuda

Hiroshi Sekiya

Yoshinori Noboru

Toshihiko Mitsunaga

Takashi Inoue

Yoshio Ishiai

Makoto Aida

Ryousuke Tuihiji

Itsuo Nakazaki

A Stirling refrigerator, which prevents oil rising, makes oil seal bellows have long-life, and includes a housing, cylinder, piston, piston rod and an oil seal bellows. The oil seal bellows seals a space between the housing and the cylinder, wherein a tip end of the oil seal bellows is sealed and fixed on the piston or on the piston rod inside the cylinder, and a base end of the oil seal bellows is installed on the housing. The oil seal bellows reciprocates with a stroke, wherein the tip end of the oil seal bellows is compressed to a compression side from a position of free length then returns to the position of free length.

Stirling refrigerator

There is provided a multistage high pressure compressor in which a rotor is supported with respect to a rotating shaft of an electric motor and which can suppress a torque fluctuation of the electric motor and achieve a stable operation of the electric motor. A fly wheel is attached to a lower end of the rotating shaft of the electric motor, and the fly wheel supports the rotor of the electric motor with respect to the rotating shaft. The fly wheel is connected to the lower end of the rotating shaft of the electric motor by a bolt, and an extension of a detent key between the rotating shaft of the electric motor and the rotor of the electric motor is inserted into the fly wheel. Moreover, there is provided a multistage high pressure compressor achieving improved sealing between a cylinder and members surrounding the periphery thereof, which is capable of realizing a simplified processing of the cylinder and an easy assembly process. Seal spaces in which seal rings are compressed between the cylinder and the members surrounding thereof are provided at the outer peripheries at the both ends of the cylinder.

Multistage high pressure compressor

Scroll compressor having limited axial movement between rotating scroll

A scroll compresser has a fixed scroll member and an orbiting scroll member. An end plate of the fixed scroll member has a discharge opening for discharging a compressed gas, a valve plate having plural discharge ports connected to the discharge opening, and discharge valves independently mounted in the discharge ports.

Scroll compressor with discharge valves

Growing community of inventors

Oizumi-machi, Japan

Denji Mashimo