Patents by Inventor Tomoki Kawakubo

Tomoki Kawakubo has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Centrifugal compressor and manufacturing method therefor
    Patent number: 9709062
    Abstract: A centrifugal compressor includes: a volute casing including a first casing and a second casing that are mutually coupled, the first casing including a volute chamber therein and the second casing including an impeller installation space therein; an impeller provided in the impeller installation space so as to be rotatable around a rotation axis; and a vaneless diffuser that has an inlet that communicates with an inside of the second casing and has an outlet that communicates with an inside of the first casing. The vaneless diffuser has a width having a non-axisymmetric distribution in the circumferential direction.
    Type: Grant
    Filed: March 21, 2012
    Date of Patent: July 18, 2017
    Assignee: IHI Corporation
    Inventors: Xinqian Zheng, Yun Lin, Yangjun Zhang, Chuanjie Lan, Weilin Zhuge, Tomoki Kawakubo, Hideaki Tamaki
  • CENTRIFUGAL COMPRESSOR AND MANUFACTURING METHOD THEREFOR
    Publication number: 20140255175
    Abstract: A centrifugal compressor includes: a volute casing including a first casing and a second casing that are mutually coupled, the first casing including a volute chamber therein and the second casing including an impeller installation space therein; an impeller provided in the impeller installation space so as to be rotatable around a rotation axis; and a vaneless diffuser that has an inlet that communicates with an inside of the second casing and has an outlet that communicates with an inside of the first casing. The vaneless diffuser has a width having a non-axisymmetric distribution in the circumferential direction.
    Type: Application
    Filed: March 21, 2012
    Publication date: September 11, 2014
    Applicant: IHI Corporation
    Inventors: Xinqian Zheng, Yun Lin, Yangjun Zhang, Chuanjie Lan, Weilin Zhuge, Tomoki Kawakubo, Hideaki Tamaki