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:
Oct. 05, 1993
Filed:
Apr. 24, 1992
Mikio Matsuda, Okazaki, JP;
Kazuhide Uchida, Nishio, JP;
Mitsuo Inagaki, Okazaki, JP;
Yasuhiro Oki, Toyota, JP;
Nippon Soken, Inc., Nishio, JP;
Abstract
In a scroll compressor, the moving scroll member is engaged with the stationary scroll member while centrally offset from each other so that they define an actuation chamber between them. When driven by the crank of the compressor shaft and blocked against rotation by the rotation restricting plate, the moving scroll member revolves to compress the fluid in the actuation chamber, and because of the relationship between the compression reaction force and the driving force, a moment is produced to incline the moving scroll member, so that the moving scroll member rises at a portion of the thrust bearing plate, the contact pressure between the scroll members is increased, and a larger driving force is required. Accordingly, the attraction force of the magnet and magnetic body is utilized to press the moving scroll member against the thrust bearing plate. This force can be generated due to the attracting force or repulsing force between magnets, or by the force of a spring. Therefore, according to the present invention, the tooth width of both scroll members can be made larger.