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:
Apr. 03, 2012
Filed:
Apr. 10, 2008
Seiichi Ibaraki, Nagasaki, JP;
Isao Tomita, Nagasaki, JP;
Yasuaki Jinnai, Sagamihara, JP;
Takashi Shiraishi, Sagamihara, JP;
Koichi Sugimoto, Nagasaki, JP;
Seiichi Ibaraki, Nagasaki, JP;
Isao Tomita, Nagasaki, JP;
Yasuaki Jinnai, Sagamihara, JP;
Takashi Shiraishi, Sagamihara, JP;
Koichi Sugimoto, Nagasaki, JP;
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Abstract
A centrifugal compressor having a wide operating range, being economically efficient and high reliability in terms of a stable operation is provided. A centrifugal compressor including a partition wall for dividing a flow channel in the diffuser section and the volute section into a plurality of channels in the direction of circulation of the fluid so as to define a hub-side flow channel and a shroud-side flow channel; and a flow rate adjusting valve for lowering the flow rate of the fluid flowing in the shroud-side flow channel to increase the flow rate in the hub-side flow channel when the flow rate of the fluid compressed by an impeller is low and not lowering the flow rate of the fluid flowing the shroud-side flow channel to allow the fluid to flow both in the shroud-side flow channel and the hub-side flow channel when the flow rate of the fluid compressed by the impeller is high is employed.