Patents by Inventor Masao Masutani

Masao Masutani 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).

  • Low NOx burner
    Patent number: 4907962
    Abstract: A low NOx burner comprises a pulverized coal nozzle for injecting a flow of a mixture of pulverized coal with primary air, a secondary air nozzle arranged externally of and coaxially with the pulverized coal nozzle, a tertiary air nozzle arranged externally of the secondary air nozzle and disposed coaxially with the pulverized coal nozzle, and a swirl flow generator for injecting secondary air and tertiary air as a respective swirl flow. Between the secondary air nozzle and the tertiary air nozzle, there is provided a spacer having such a thickness as to delay the mixing of the secondary air and the tertiary air and to form a swirl flow between the secondary air and the tertiary air.
    Type: Grant
    Filed: May 26, 1987
    Date of Patent: March 13, 1990
    Assignees: Hitachi, Ltd., Babcock-Hitachi Kabushiki
    Inventors: Shigeru Azuhata, Kiyoshi Narato, Hironobu Kobayashi, Kenichi Sohma, Tooru Inada, Norio Arashi, Hiroshi Miyadera, Masao Masutani