Patents by Inventor Yuuta FURUKAWA

Yuuta FURUKAWA 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).

  • Publication number: 20230128121
    Abstract: A cable support device (14) for supporting an intermediate part of a power supply cable (13) is provided with a cable stand (16) attached to an upper revolving structure (3), an arm member (19) that is rotatably attached to the cable stand (16) to grip the power supply cable (13) on the tip end side and, and a locking mechanism (25) that is removably disposed in the cable stand (16) and in the arm member (19) to prohibit rotation of the arm member (19) relative to the cable stand (16). Thereby, the rotation of the arm member (19) relative to the cable stand (16) is prohibited by the locking mechanism (25), making it possible to prevent the power feeding cable (13) retained in the arm member (19) from contacting a cab (6).
    Type: Application
    Filed: March 16, 2021
    Publication date: April 27, 2023
    Inventors: Yuuta FURUKAWA, Hiroyuki ANDOU, Seiichi KIHARA, Kiwamu TAKAHASHI
  • Patent number: 11512625
    Abstract: A precombustion chamber engine comprises: a cylinder head defining a main combustion chamber together with a cylinder liner and a piston top surface; a precombustion chamber cap mounted on the cylinder head by inserting a distal end portion of the precombustion chamber cap into an insertion hole formed in the cylinder head; a precombustion chamber holder disposed inside the cylinder head; and a precombustion chamber cap holding member fixed to the precombustion chamber holder and configured to suspend and support the precombustion chamber cap. The precombustion chamber cap includes a reduced diameter portion with a diameter decreasing from a proximal end portion of the precombustion chamber cap to an intermediate portion that has a smaller diameter than the proximal end portion.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: November 29, 2022
    Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
    Inventor: Yuuta Furukawa
  • Publication number: 20220162981
    Abstract: A precombustion chamber engine comprises: a cylinder head defining a main combustion chamber together with a cylinder liner and a piston top surface; a precombustion chamber cap mounted on the cylinder head by inserting a distal end portion of the precombustion chamber cap into an insertion hole formed in the cylinder head; a precombustion chamber holder disposed inside the cylinder head; and a precombustion chamber cap holding member fixed to the precombustion chamber holder and configured to suspend and support the precombustion chamber cap. The precombustion chamber cap includes a reduced diameter portion with a diameter decreasing from a proximal end portion of the precombustion chamber cap to an intermediate portion that has a smaller diameter than the proximal end portion.
    Type: Application
    Filed: August 29, 2019
    Publication date: May 26, 2022
    Applicant: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
    Inventor: Yuuta FURUKAWA
  • Publication number: 20220065324
    Abstract: A fluid pressure shock absorber includes a piston connected to an end of a piston rod and slidably moving inside a cylinder tube and dividing the cylinder tube into a piston-side chamber and a rod-side chamber, a rod internal space formed inside the piston rod, a first communication passage communicating the rod-side chamber with the rod internal space, a second communication passage formed in the piston and communicating the piston-side chamber with the rod internal space, and a restrictor provided in the second communication passage to apply a resistance to a flow of a working fluid passing through the second communication passage.
    Type: Application
    Filed: December 5, 2019
    Publication date: March 3, 2022
    Applicant: KYB Corporation
    Inventors: Hiroshi FUNATO, Tomoo KUBOTA, Masaya OMOTE, Yuuta FURUKAWA
  • Patent number: 10837373
    Abstract: A precombustion chamber gas engine including a precombustion chamber communicating with a main combustion chamber includes: a precombustion-chamber-fuel supply line through which a precombustion chamber fuel flows; a precombustion-chamber-fuel supply valve connected to the precombustion-chamber-fuel supply line and controlling supply of the precombustion chamber fuel to the precombustion chamber, the precombustion-chamber-fuel supply valve being configured to open when a precombustion chamber fuel line pressure, which is a pressure of the precombustion-chamber-fuel supply line, is larger than a precombustion chamber pressure, which is a pressure of the precombustion chamber; a precombustion-chamber-fuel-line-pressure adjustment valve disposed on the precombustion-chamber-fuel supply line and capable of adjusting the precombustion chamber fuel line pressure; an exhaust-precombustion-chamber-pressure acquisition unit capable of obtaining an exhaust precombustion chamber pressure which is a pressure related to t
    Type: Grant
    Filed: January 24, 2018
    Date of Patent: November 17, 2020
    Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
    Inventors: Daisuke Takemoto, Akihiro Yuuki, Yuuta Furukawa, Kazuo Ogura, Hiroyuki Endo
  • Publication number: 20190390613
    Abstract: A precombustion chamber gas engine including a precombustion chamber communicating with a main combustion chamber includes: a precombustion-chamber-fuel supply line through which a precombustion chamber fuel flows; a precombustion-chamber-fuel supply valve connected to the precombustion-chamber-fuel supply line and controlling supply of the precombustion chamber fuel to the precombustion chamber, the precombustion-chamber-fuel supply valve being configured to open when a precombustion chamber fuel line pressure, which is a pressure of the precombustion-chamber-fuel supply line, is larger than a precombustion chamber pressure, which is a pressure of the precombustion chamber; a precombustion-chamber-fuel-line-pressure adjustment valve disposed on the precombustion-chamber-fuel supply line and capable of adjusting the precombustion chamber fuel line pressure; an exhaust-precombustion-chamber-pressure acquisition unit capable of obtaining an exhaust precombustion chamber pressure which is a pressure related to t
    Type: Application
    Filed: January 24, 2018
    Publication date: December 26, 2019
    Applicant: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
    Inventors: Daisuke TAKEMOTO, Akihiro YUUKI, Yuuta FURUKAWA, Kazuo OGURA, Hiroyuki ENDO