Patents by Inventor Yuusuke IGARASHI

Yuusuke IGARASHI 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).

  • Work vehicle
    Patent number: 9662958
    Abstract: A work vehicle includes a condenser, a fan, a variable mechanism, a fan control unit, an outside air temperature sensor, and a storage unit. The condenser cools a cooling medium used in an air conditioner. The fan cools the condenser. The variable mechanism can change a number of rotations of the fan. The fan control unit controls the variable mechanism. The storage unit stores a plurality of control maps for setting the number of rotations of the fan to respective different numbers of rotations of the fan in accordance with the outside air temperature detected by the outside air temperature sensor. The fan control unit controls the variable mechanism in accordance with one control map selected from the plurality of control maps stored in the storage unit based on an operating state of the air conditioner, to control the number of rotations of the fan.
    Type: Grant
    Filed: May 14, 2014
    Date of Patent: May 30, 2017
    Assignee: KOMATSU LTD.
    Inventors: Masahiko Hoshiya, Youichi Hayashi, Yuusuke Igarashi, Shunsuke Yoshioka
  • WORK VEHICLE
    Publication number: 20160229261
    Abstract: A work vehicle includes a condenser, a fan, a variable mechanism, a fan control unit, an outside air temperature sensor, and a storage unit. The condenser cools a cooling medium used in an air conditioner. The fan cools the condenser. The variable mechanism can change a number of rotations of the fan. The fan control unit controls the variable mechanism. The storage unit stores a plurality of control maps for setting the number of rotations of the fan to respective different numbers of rotations of the fan in accordance with the outside air temperature detected by the outside air temperature sensor. The fan control unit controls the variable mechanism in accordance with one control map selected from the plurality of control maps stored in the storage unit based on an operating state of the air conditioner, to control the number of rotations of the fan.
    Type: Application
    Filed: May 14, 2014
    Publication date: August 11, 2016
    Inventors: Masahiko HOSHIYA, Youichi HAYASHI, Yuusuke IGARASHI, Shunsuke YOSHIOKA