Patents by Inventor Kyuuhei Ishibane

Kyuuhei Ishibane 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).

  • Heat source apparatus and method of starting the apparatus
    Patent number: 8191377
    Abstract: After a chiller unit is started, an opening command of 10 pulses is output to an electronic expansion valve, and after a predetermined period of time (at the time of starting with unload) elapses, an opening command of 100 to 150 pulses is output to open the electronic expansion valve up to a predetermined opening degree. Thereafter, a discharge side refrigerant super-heat TdSH is monitored and a closing command of 1 pulse/sec is output to the electronic expansion valve to drive the same in a closing direction in a short time until TdSH becomes 20 K. After TdSH has reached 20 K, a closing command of 1 pulse/3 sec is output to the electronic expansion valve, until TdSH becomes 25 K, to drive the electronic expansion valve 3 at a smaller speed in the closing direction than that speed in the closing direction until TdSH becomes 20 K.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: June 5, 2012
    Assignee: Hitachi Appliances, Inc.
    Inventors: Masayuki Aiyama, Shouji Kikuchi, Kyuuhei Ishibane, Yoshikazu Ishiki, Mitsue Okamoto
  • HEAT SOURCE APPARATUS AND METHOD OF STARTING THE APPARATUS
    Publication number: 20100089084
    Abstract: After a chiller unit is started, an opening command of 10 pulses is output to an electronic expansion valve, and after a predetermined period of time (at the time of starting with unload) elapses, an opening command of 100 to 150 pulses is output to open the electronic expansion valve up to a predetermined opening degree. Thereafter, a discharge side refrigerant super-heat TdSH is monitored and a closing command of 1 pulse/sec is output to the electronic expansion valve to drive the same in a closing direction in a short time until TdSH becomes 20 K. After TdSH has reached 20 K, a closing command of 1 pulse/3 sec is output to the electronic expansion valve, until TdSH becomes 25 K, to drive the electronic expansion valve 3 at a smaller speed in the closing direction than that speed in the closing direction until TdSH becomes 20 K.
    Type: Application
    Filed: December 18, 2009
    Publication date: April 15, 2010
    Inventors: Masayuki AIYAMA, Shouji Kikuchi, Kyuuhei Ishibane, Yoshikazu Ishiki, Mitsue Okamoto
  • Heat source apparatus and method of starting the apparatus
    Publication number: 20070062207
    Abstract: After a chiller unit is started, an opening command of 10 pulses is output to an electronic expansion valve, and after a predetermined period of time (at the time of starting with unload) elapses, an opening command of 100 to 150 pulses is output to open the electronic expansion valve up to a predetermined opening degree. Thereafter, a discharge side refrigerant super-heat TdSH is monitored and a closing command of 1 pulse/sec is output to the electronic expansion valve to drive the same in a closing direction in a short time until TdSH becomes 20 K. After TdSH has reached 20 K, a closing command of 1 pulse/3 sec is output to the electronic expansion valve, until TdSH becomes 25 K, to drive the electronic expansion valve 3 at a smaller speed in the closing direction than that speed in the closing direction until TdSH becomes 20 K.
    Type: Application
    Filed: June 7, 2006
    Publication date: March 22, 2007
    Inventors: Masayuki Aiyama, Shouji Kikuchi, Kyuuhei Ishibane, Yoshikazu Ishiki, Mitsue Okamoto