Patents by Inventor Fumiyuki Tsurumi

Fumiyuki Tsurumi 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).

  • Apparatus for and method of purifying exhaust gas
    Patent number: 8161737
    Abstract: An exhaust gas pressure P, exhaust gas temperatures TU and TD on upstream and downstream of a DPF, a rotation speed Ne, a load Q, and an intake flow rate F as various operating conditions are read, and an amount of PM generated for short time ?t is obtained to be added to a PM deposited amount m, and thus, to obtain an initial deposited amount. Exhaust gas properties and a space velocity SV are obtained based on various operating conditions, and the PM deposited amount m after a lapse of the short time ?t is estimated from a PM deposited amount estimation equation “m=m·exp(?B·?t)” having been derived considering the exhaust gas properties and the space velocity SV. When the PM deposited amount m is equal to or more than a predetermined value, a forced regeneration processing in the DPF is executed, and thereafter, the PM deposited amount m is reset to 0.
    Type: Grant
    Filed: April 29, 2010
    Date of Patent: April 24, 2012
    Assignees: UD Trucks Corporation, Waseda University, Tokyo Roki Co., Ltd.
    Inventors: Isamu Kanaya, Takayuki Adachi, Nobuhiko Masaki, Kiminobu Hirata, Jin Kusaka, Keishi Takada, Takeshi Mende, Fumiyuki Tsurumi
  • APPARATUS FOR AND METHOD OF PURIFYING EXHAUST GAS
    Publication number: 20100269490
    Abstract: An exhaust gas pressure P, exhaust gas temperatures TU and TD on upstream and downstream of a DPF, a rotation speed Ne, a load Q, and an intake flow rate F as various operating conditions are read, and an amount of PM generated for short time ?t is obtained to be added to a PM deposited amount m, and thus, to obtain an initial deposited amount. Exhaust gas properties and a space velocity SV are obtained based on various operating conditions, and the PM deposited amount m after a lapse of the short time ?t is estimated from a PM deposited amount estimation equation “m=m·exp(?B·?t)” having been derived considering the exhaust gas properties and the space velocity SV. When the PM deposited amount m is equal to or more than a predetermined value, a forced regeneration processing in the DPF is executed, and thereafter, the PM deposited amount m is reset to 0.
    Type: Application
    Filed: April 29, 2010
    Publication date: October 28, 2010
    Inventors: Isamu KANAYA, Takayuki Adachi, Nobuhiko Masaki, Kiminobu Hirata, Jin Kusaka, Keishi Takada, Takeshi Mende, Fumiyuki Tsurumi