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:
Jul. 12, 2022
Filed:
Mar. 09, 2018
Hitachi Industrial Equipment Systems Co., Ltd., Tokyo, JP;
Shumpei Yamazaki, Tokyo, JP;
Kosuke Sadakata, Tokyo, JP;
Hitachi Industrial Equipment Systems Co., Ltd., Tokyo, JP;
Abstract
A scroll-type fluid machine includes a fixed scroll, an orbiting scroll, a drive shaft, a cooling fan, and a cooling air duct. In a bent portion, immediately adjacent to the cooling fan, where a direction of the cooling air duct is changed from a direction perpendicular to the drive shaft to a direction of the drive shaft, a part of an outer peripheral wall which is distant from the drive shaft is planar and defines a plane which intersects a plane perpendicular to the drive shaft at an obtuse angle. With this configuration, a main stream of the cooling air is prevented from separating from an inner peripheral wall of the bent portion.