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:
Mar. 26, 2002
Filed:
Dec. 17, 1999
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Abstract
The present invention provides a scroll-type compressor that can supply sufficient lubricating oil without the occurrence of seizure of bearing for an orbiting scroll. In this scroll-type compressor, an annular boss extends downward from the orbiting scroll, and an eccentric pin of a rotating shaft fits into the boss via a bearing and an eccentric bush A gap is provided between the eccentric pin and the eccentric bush and an oil supply path is provided between the eccentric bush and the bearing The lubricating oil flows out of an oil supply hole formed in a rotating shaft and the eccentric pin being supplied to the bearing etc. via the oil supply path In order to sufficiently supply the lubricating oil to the oil supply path a portion extending in an arcuate shape from the upper end face of the eccentric bush forms a protrusion extending upward from the other flat portion The protrusion may be formed in an annular shape along the inner peripheral surface of the eccentric bush or a flat plate member may be provided to close the gap from the downside without providing the protrusion