The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 23, 1993
Filed:
Jun. 26, 1991
Toshiyuki Nakamura, Shizuoka, JP;
Takashi Yamamoto, Shizuoka, JP;
Hiroshi Ogawa, Shizuoka, JP;
Norihide Kobayashi, Shizuoka, JP;
Fumiaki Sano, Shizuoka, JP;
Masahiko Oide, Shizuoka, JP;
Katsuyoshi Wada, Shizuoka, JP;
Minoru Ishii, Shizuoka, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A scroll type compressor comprising: a fixed scroll and an orbiting scroll which have their base plates provided with wraps thereon, the wraps being combined to form a compression chamber therebetween; a frame for fixedly supporting the fixed scroll, the frame having a bearing at a central portion; a crankshaft supported by the frame bearing to be rotatable, and having an electric motor rotor to give torque to the orbiting scroll; a subframe having a central portion provided with a bearing for supporting a lower end of the crankshaft; a center shell having a terminal member and an electric motor stator, having an inner peripheral surface formed with a stepped portion to be engaged with a stepped portion formed on an outer peripheral surface of the frame, the center shell having the frame fixed thereto by shrinkage fit at a location above or below the stepped portion of the center shell, and also having the subframe fixed to a lower end thereof; and concentric assemblage jig mounting portions formed in the frame and the subframe, respectively, to be concentric with the bearings.