Patents by Inventor Gaiken O

Gaiken O 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).

  • Bulkhead heat exchanger including heat transfer surfaces having improved heat transfer performance
    Patent number: 11913732
    Abstract: A bulkhead heat exchanger includes a first bulkhead, a second bulkhead, and a plurality of flow path walls which divide a space formed between the first bulkhead and the second bulkhead into a plurality of first flow paths, wherein the first bulkhead and the second bulkhead separate the plurality of first flow paths from a plurality of second flow paths through which a second fluid different from a first fluid flowing through the plurality of first flow paths flows, the plurality of flow path walls have the plurality of wall surfaces, and the plurality of wall surfaces conform to sine curves different from each other, respectively.
    Type: Grant
    Filed: January 24, 2019
    Date of Patent: February 27, 2024
    Assignee: FUJITSU GENERAL LIMITED
    Inventors: Gaiken O, Toshihiko Takahashi, Akira Koizumi
  • BULKHEAD HEAT EXCHANGER
    Publication number: 20220260325
    Abstract: A bulkhead heat exchanger includes a first bulkhead, a second bulkhead, and a plurality of flow path walls which divide a space formed between the first bulkhead and the second bulkhead into a plurality of first flow paths. The first bulkhead and the second bulkhead separate the plurality of first flow paths from a plurality of second flow paths through which a second fluid different from a first fluid flowing through the plurality of first flow paths flows. When a plurality of wall surfaces along a plurality of sine curves are formed and a phase overlapping an inflection point of one flow path wall of adjacent flow path walls is ?0 (=0°), the flow path wall is a sinusoidal flow path wall having a phase range of ?0 (=0°)<?1<?2<90°<?3<?4<180°<?5<?6<270°<?7<?8<?0 (=360°) as one period.
    Type: Application
    Filed: June 26, 2020
    Publication date: August 18, 2022
    Applicant: FUJITSU GENERAL LIMITED
    Inventors: Gaiken O, Akira KOIZUMI, Toshihiko TAKAHASHI
  • BULKHEAD HEAT EXCHANGER
    Publication number: 20210003351
    Abstract: A bulkhead heat exchanger includes a first bulkhead, a second bulkhead, and a plurality of flow path walls which divide a space formed between the first bulkhead and the second bulkhead into a plurality of first flow paths, wherein the first bulkhead and the second bulkhead separate the plurality of first flow paths from a plurality of second flow paths through which a second fluid different from a first fluid flowing through the plurality of first flow paths flows, the plurality of flow path walls have the plurality of wall surfaces, and the plurality of wall surfaces conform to sine curves different from each other, respectively.
    Type: Application
    Filed: January 24, 2019
    Publication date: January 7, 2021
    Applicant: FUJITSU GENERAL LIMITED
    Inventors: Gaiken O, Toshihiko TAKAHASHI, Akira KOIZUMI