Patents by Inventor Ryutaro KOMURA

Ryutaro KOMURA 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).

  • Engine exhaust manifold
    Patent number: 11306687
    Abstract: An engine exhaust manifold including exhaust inlet parts at four locations corresponding to a plurality of exhaust ports, one exhaust outlet part, and an exhaust confluence part to collect exhaust gas from each of the exhaust inlet parts and send to the exhaust outlet part. An EGR passage part to send EGR gas toward an intake passage is formed.
    Type: Grant
    Filed: November 12, 2020
    Date of Patent: April 19, 2022
    Assignee: KUBOTA CORPORATION
    Inventors: Kentaro Nagai, Ryutaro Komura, Takashi Yamaguchi, Kumiko Sakaguchi, Takahiro Yamazaki
  • ENGINE EXHAUST MANIFOLD
    Publication number: 20210199074
    Abstract: An engine exhaust manifold including exhaust inlet parts at four locations corresponding to a plurality of exhaust ports, one exhaust outlet part, and an exhaust confluence part to collect exhaust gas from each of the exhaust inlet parts and send to the exhaust outlet part. An EGR passage part to send EGR gas toward an intake passage is formed.
    Type: Application
    Filed: November 12, 2020
    Publication date: July 1, 2021
    Inventors: Kentaro NAGAI, Ryutaro KOMURA, Takashi YAMAGUCHI, Kumiko SAKAGUCHI, Takahiro YAMAZAKI
  • Exhaust treatment apparatus for engine
    Patent number: 9765671
    Abstract: An engine exhaust treatment apparatus, which suppresses thermal damage to an electrothermal ignition apparatus, includes: an exhaust passage; an oxidation catalyst disposed in the exhaust passage; a combustible gas generator; a combustible gas supplying passage; a heat dissipation port opened upstream in the exhaust passage from the oxidation catalyst and in a downstream part of the combustible gas supplying passage, the exhaust passage and the combustible gas supplying passage communicating with each other through the heat dissipation port; and an electrothermal ignition apparatus disposed in the combustible gas supplying passage. Heat of flaming combustion of the combustible gas ignited by the electrothermal ignition apparatus is supplied to the exhaust passage, to raise the temperature of exhaust in the exhaust passage. A heat dissipation plate is attached to an outer projecting portion of the electrothermal ignition apparatus.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: September 19, 2017
    Assignee: KUBOTA Corporation
    Inventors: Hideyuki Koyama, Tomoya Akitomo, Yuichi Tamaki, Ryutaro Komura
  • EXHAUST TREATMENT APPARATUS FOR ENGINE
    Publication number: 20140290226
    Abstract: An engine exhaust treatment apparatus, which suppresses thermal damage to an electrothermal ignition apparatus, includes: an exhaust passage; an oxidation catalyst disposed in the exhaust passage; a combustible gas generator; a combustible gas supplying passage; a heat dissipation port opened upstream in the exhaust passage from the oxidation catalyst and in a downstream part of the combustible gas supplying passage, the exhaust passage and the combustible gas supplying passage communicating with each other through the heat dissipation port; and an electrothermal ignition apparatus disposed in the combustible gas supplying passage. Heat of flaming combustion of the combustible gas ignited by the electrothermal ignition apparatus is supplied to the exhaust passage, to raise the temperature of exhaust in the exhaust passage. A heat dissipation plate is attached to an outer projecting portion of the electrothermal ignition apparatus.
    Type: Application
    Filed: March 4, 2014
    Publication date: October 2, 2014
    Applicant: KUBOTA Corporation
    Inventors: Hideyuki KOYAMA, Tomoya AKITOMO, Yuichi TAMAKI, Ryutaro KOMURA