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. 07, 2014
Filed:
Jun. 17, 2010
Masafumi Hamasaki, Tokyo, JP;
Masanori Takahashi, Tokyo, JP;
Shinichi Isobe, Tokyo, JP;
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Abstract
When groovesA andB of an armatureand a rotorare formed by laser beam machining, a metal oxide layeris formed on wall surfaces defining the groovesA andB. The metal oxide layeris brought into sliding contact with a first contact surface Ato a fourth contact surface Ain a process in which an electromagnetic clutch is used, so that a part of the metal oxide layeris ground and peeled off, whereby particles made of a metal oxide are produced. The particles enter the contact surface between the armatureand the rotor, which increases the frictional force therebetween to thereby prevent slippage. As a result, the torque transmission capability of the electromagnetic clutch M is enhanced, and the increase in the torque of a scroll compressor is achieved.