SCROLL COMPRESSOR

Japanese Patent JP3314562

B2

PURPOSE: To provide a scroll compressor ensuring reliability even in the heavy operation such as high efficiency and high speed and high load operation or the like, simplifying the structure, and reducing the cost.
CONSTITUTION: An eccentric shaft 17 extended with eccentricity from the end part of a main shaft 16 parallel to the axis is formed in such a manner as to form a part of a substantially annular surface by a circular-arc surface with a radius (r1) of curvature and a circular-arc surface with a radius (r2) of curvature larger than the radius (r1) of curvature which have the same center of curvature, and two side surfaces. An eccentric bush 18 rotatably supported in the inside of a boss 11 of a swirl scroll blade part 7 through a revolving bearing 12 has a fitting hole 19 fitted and connected to the eccentric shaft 17 in the substantially central part. The shape of the fitting hole 19 is decided in such a manne that the bush can be swung taking the center of curvature of a circular-arc surface positioned in the second quadrant in a definition coordinate as the center of rotation to the eccentric shaft 17, whereby the turning radius can be varied.

Sadao Kawahara
Takao Fujita
Tatsuhisa Taguchi
Teruyuki Akazawa
Masahiko Makino
Nobuaki Ogawa

JP29675094A

August 12, 2002

November 30, 1994

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Matsushita Electric Industrial Co., Ltd

F04C18/02; F04C28/28; F04C27/00; F04C29/00; F04C29/02; (IPC1-7): F04C18/02; F04C29/02

JP6280759A
JP586801A
JP56129791A

Fumio Iwahashi (2 others)

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