Patents by Inventor Yoshiyuki Sandou

Yoshiyuki Sandou 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: 20230228208
    Abstract: An exhaust gas purification device including: a first case communicating with an exhaust manifold of an engine and internally including a first exhaust gas purification body for removing a carbon compound; and a second case communicating with an exhaust outlet of the first case and internally including second exhaust gas purification bodies for removing a nitrogen compound. The first case and the second case are arranged above the engine and in an L-shape to respectively extend along two side surfaces of the engine, the two side surfaces being adjacent to each other.
    Type: Application
    Filed: March 23, 2023
    Publication date: July 20, 2023
    Applicant: Yanmar Power Technology Co., Ltd.
    Inventors: Yoshiyuki Sandou, Hiroaki Naganawa, Kazuma Sugimoto
  • Patent number: 11643960
    Abstract: An exhaust gas purification device including: a first case communicating with an exhaust manifold of an engine and internally including a first exhaust gas purification body for removing a carbon compound; and a second case communicating with an exhaust outlet of the first case and internally including second exhaust gas purification bodies for removing a nitrogen compound. The first case and the second case are arranged above the engine and in an L-shape to respectively extend along two side surfaces of the engine, the two side surfaces being adjacent to each other.
    Type: Grant
    Filed: July 14, 2021
    Date of Patent: May 9, 2023
    Assignee: Yanmar Power Technology Co., Ltd.
    Inventors: Yoshiyuki Sandou, Hiroaki Naganawa, Kazuma Sugimoto
  • Publication number: 20210340897
    Abstract: An exhaust gas purification device including: a first case communicating with an exhaust manifold of an engine and internally including a first exhaust gas purification body for removing a carbon compound; and a second case communicating with an exhaust outlet of the first case and internally including second exhaust gas purification bodies for removing a nitrogen compound. The first case and the second case are arranged above the engine and in an L-shape to respectively extend along two side surfaces of the engine, the two side surfaces being adjacent to each other.
    Type: Application
    Filed: July 14, 2021
    Publication date: November 4, 2021
    Applicant: Yanmar Power Technology Co., Ltd.
    Inventors: Yoshiyuki Sandou, Hiroaki Naganawa, Kazuma Sugimoto
  • Patent number: 11092056
    Abstract: An exhaust gas purification device including: a first case communicating with an exhaust manifold of an engine and internally including a first exhaust gas purification body for removing a carbon compound; and a second case communicating with an exhaust outlet of the first case and internally including second exhaust gas purification bodies for removing a nitrogen compound. The first case and the second case are arranged above the engine and in an L-shape to respectively extend along two side surfaces of the engine, the two side surfaces being adjacent to each other.
    Type: Grant
    Filed: June 15, 2020
    Date of Patent: August 17, 2021
    Assignee: YANMAR POWER TECHNOLOGY CO., LTD.
    Inventors: Yoshiyuki Sandou, Hiroaki Naganawa, Kazuma Sugimoto
  • Publication number: 20200309009
    Abstract: An exhaust gas purification device including: a first case communicating with an exhaust manifold of an engine and internally including a first exhaust gas purification body for removing a carbon compound; and a second case communicating with an exhaust outlet of the first case and internally including second exhaust gas purification bodies for removing a nitrogen compound. The first case and the second case are arranged above the engine and in an L-shape to respectively extend along two side surfaces of the engine, the two side surfaces being adjacent to each other.
    Type: Application
    Filed: June 15, 2020
    Publication date: October 1, 2020
    Inventors: Yoshiyuki SANDOU, Hiroaki NAGANAWA, Kazuma SUGIMOTO
  • Patent number: 10690034
    Abstract: An exhaust gas purification device including: a first case communicating with an exhaust manifold of an engine and internally including a first exhaust gas purification body for removing a carbon compound; and a second case communicating with an exhaust outlet of the first case and internally including second exhaust gas purification bodies for removing a nitrogen compound. The first case and the second case are arranged above the engine and in an L-shape to respectively extend along two side surfaces of the engine, the two side surfaces being adjacent to each other.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: June 23, 2020
    Assignee: YANMAR CO., LTD.
    Inventors: Yoshiyuki Sandou, Hiroaki Naganawa, Kazuma Sugimoto
  • Patent number: 10436093
    Abstract: In an engine device having a urea mixing pipe which injects urea water into exhaust gas of an engine, and an SCR case which removes nitrogen oxides in the exhaust gas of the engine, and structured such that an inlet side of the SCR case is connected to an outlet side of the urea mixing pipe, an exhaust gas outlet side of the SCR case is connected to an exhaust gas inlet side of the urea mixing pipe where a urea water injection means is arranged, and an exhaust gas inlet side of the urea mixing pipe is supported to the exhaust gas outlet side of the SCR case.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: October 8, 2019
    Assignee: YANMAR CO., LTD.
    Inventors: Yu Matsui, Yoshiyuki Sandou
  • Publication number: 20190226380
    Abstract: An exhaust gas purification device (27) including: a first case (28) communicating with an exhaust manifold (6) of an engine (1) and internally including a first exhaust gas purification body (30) for removing a carbon compound; and a second case (29) communicating with an exhaust outlet of the first case (28) and internally including second exhaust gas purification bodies (31 to 33) for removing a nitrogen compound. The first case (28) and the second case (29) are arranged above the engine (1) and in an L-shape to respectively extend along two side surfaces of the engine (1), the two side surfaces being adjacent to each other.
    Type: Application
    Filed: February 15, 2017
    Publication date: July 25, 2019
    Applicant: Yanmar Co., Ltd.
    Inventors: Yoshiyuki SANDOU, Hiroaki NAGANAWA, Kazuma SUGIMOTO
  • Patent number: 10352216
    Abstract: An engine device is provided with a first case which removes particulate matters in exhaust gas of an engine, and a second case which removes nitrogen oxides in the exhaust gas of the engine. The second case is connected to the first case via a urea mixing pipe. An exhaust gas inlet surface of the first case is joined to an exhaust gas outlet surface of the engine, and a support base firmly fixed to the engine is provided. The support base is partly brought into surface contact with the exhaust gas outlet surface of the engine.
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: July 16, 2019
    Assignee: YANMAR CO., LTD.
    Inventors: Yoshiyuki Sandou, Tomoyuki Kimura
  • Patent number: 10294842
    Abstract: In an engine device having a urea mixing pipe which injects urea water into exhaust gas of an engine, and an SCR case which removes nitrogen oxides in the exhaust gas of the engine, and structured such that an inlet side of the SCR case is connected to an outlet side of the urea mixing pipe, the urea mixing pipe is formed by an outer pipe and an inner pipe having a double pipe structure, the SCR case is formed by an inner case body and an outer case body having a double case structure, an exhaust gas outlet side end portion of the outer pipe is connected to an exhaust gas inlet of the inner case body, and an exhaust gas outlet side end portion of the inner pipe is provided in a protruding manner in an inner portion of the SCR case.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: May 21, 2019
    Assignee: YANMAR CO., LTD.
    Inventor: Yoshiyuki Sandou
  • Patent number: 10184375
    Abstract: The engine device has a first case which removes particulate matters in exhaust gas of the engine, and a second case which removes nitrogen oxides in the exhaust gas of the engine. The second case is connected to the first case via a urea mixing pipe. The engine device is provided with a plurality of support leg bodies which are connected their one end sides to the engine, and a support base which is connected to a plurality of support leg bodies. The first case and the second case are arranged in the support base.
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: January 22, 2019
    Assignee: Yanmar Co., Ltd.
    Inventors: Tomoyuki Kimura, Yoshiyuki Sandou
  • Patent number: 9995198
    Abstract: An engine device for a work vehicle, in which an exhaust purification unit can be placed on an engine in the neighborhood of the final process in the assembly work of the engine, thereby improving the assembly workability of the engine. The engine device includes a first case that removes particulate matter in the exhaust gas of the engine and a second case that removes nitrogen oxides in the exhaust gas of the engine and connects the first case to the second case via a urea mixing pipe. The first case and the second case are integrally adhered by means of clamping bodies, and, thereby forming an exhaust purification unit, and the exhaust purification unit is configured to be supported by the engine via the clamping bodies, and in a detachable manner.
    Type: Grant
    Filed: October 22, 2014
    Date of Patent: June 12, 2018
    Assignee: Yanmar Co., Ltd.
    Inventor: Yoshiyuki Sandou
  • Patent number: 9810133
    Abstract: A engine device for a work vehicle, in which an engine, a first case, and a second case can be constituted in the same vibration structure, and exhaust gas path structure between the engine and the second case can be constituted in such a manner as to reduce costs. The engine device for a work vehicle according to the present invention of the instant application includes the first case for removing particulate matter in exhaust gas of the engine and the second case for removing nitrogen oxides in the exhaust gas of the engine, and configured to connect the first case to the second case via a urea mixing pipe. The engine, the first case, and the second case are integrally adhered, and the engine, the first case, and the second case are configured to be integrally vibrated in a swingable manner.
    Type: Grant
    Filed: October 22, 2014
    Date of Patent: November 7, 2017
    Assignee: Yanmar Co., Ltd.
    Inventor: Yoshiyuki Sandou
  • Patent number: 9752478
    Abstract: An engine device of a working vehicle is structured such that a first case and a second case can be firmly fixed with a high rigidity by making good use of a frame of an engine room. In the engine device of the working vehicle having the first case which removes particulate matter in exhaust gas of the engine and the second case which removes nitrogen oxide in the exhaust gas of the engine, the first case is provided in the engine room which is inward provided with the engine, via a first case support body, and the second case is provided in the engine room via second case support bodies.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: September 5, 2017
    Assignee: Yanmar Co., Ltd.
    Inventors: Yoshiyuki Sandou, Tomoyuki Kimura
  • Publication number: 20170204766
    Abstract: In an engine device having a urea mixing pipe which injects urea water into exhaust gas of an engine, and an SCR case which removes nitrogen oxides in the exhaust gas of the engine, and structured such that an inlet side of the SCR case is connected to an outlet side of the urea mixing pipe, an exhaust gas outlet side of the SCR case is connected to an exhaust gas inlet side of the urea mixing pipe where a urea water injection means is arranged, and an exhaust gas inlet side of the urea mixing pipe is supported to the exhaust gas outlet side of the SCR case.
    Type: Application
    Filed: March 31, 2017
    Publication date: July 20, 2017
    Inventors: Yu MATSUI, Yoshiyuki SANDOU
  • Publication number: 20170204765
    Abstract: In an engine device having a urea mixing pipe which injects urea water into exhaust gas of an engine, and an SCR case which removes nitrogen oxides in the exhaust gas of the engine, and structured such that an inlet side of the SCR case is connected to an outlet side of the urea mixing pipe, the urea mixing pipe is formed by an outer pipe and an inner pipe having a double pipe structure, the SCR case is formed by an inner case body and an outer case body having a double case structure, an exhaust gas outlet side end portion of the outer pipe is connected to an exhaust gas inlet of the inner case body, and an exhaust gas outlet side end portion of the inner pipe is provided in a protruding manner in an inner portion of the SCR case.
    Type: Application
    Filed: March 31, 2017
    Publication date: July 20, 2017
    Inventor: Yoshiyuki SANDOU
  • Patent number: 9631532
    Abstract: Provided is an engine device of a working vehicle structured such that a first case and a second case can be firmly fixed with a high rigidly by sharing supporting loads of the first case and the second case by an engine room and a working portion. In the engine device of the working vehicle having the first case which removes particulate matter in exhaust gas of an engine, and the second case which removes nitrogen oxide in the exhaust gas of the engine, the first case is provided in an outer side of the engine room which is inward provided with the engine via a first case support body, and the second case is provided in the working portion which is adjacent to the engine room via a second case support body.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: April 25, 2017
    Assignee: Yanmar Co., Ltd.
    Inventors: Yoshiyuki Sandou, Tomoyuki Kimura
  • Patent number: 9556770
    Abstract: An engine device is provided with an urea mixing pipe which injects urea water into exhaust gas of an engine, and an exhaust gas purification case which removes nitrogen oxide in the exhaust gas of the engine, and is structured such that an exhaust gas inlet pipe of the exhaust gas purification case is connected to an outlet of the urea mixing pipe via a flange body. Exhaust gas outlet side end portions of an outer pipe and an inner pipe of the urea mixing pipe having a double-pipe structure are connected to exhaust gas inlet side end portions of an outer pipe and an inner pipe of the exhaust gas inlet pipe having a double-pipe structure. Fitting small-diameter portions are formed in an end portion of the inner pipe of the urea mixing pipe, and the fitting small-diameter portions are inward insert to an inner portion of the inner pipe of the exhaust gas inlet pipe.
    Type: Grant
    Filed: March 26, 2014
    Date of Patent: January 31, 2017
    Assignee: YANMAR CO., LTD.
    Inventor: Yoshiyuki Sandou
  • Publication number: 20170009627
    Abstract: An engine device is provided with a first case which removes particulate matters in exhaust gas of an engine, and a second case which removes nitrogen oxides in the exhaust gas of the engine. The second case is connected to the first case via a urea mixing pipe. An exhaust gas inlet surface of the first case is joined to an exhaust gas outlet surface of the engine, and a support base firmly fixed to the engine is provided. The support base is partly brought into surface contact with the exhaust gas outlet surface of the engine.
    Type: Application
    Filed: September 20, 2016
    Publication date: January 12, 2017
    Inventors: Yoshiyuki SANDOU, Tomoyuki KIMURA
  • Publication number: 20170009628
    Abstract: The engine device has a first case which removes particulate matters in exhaust gas of the engine, and a second case which removes nitrogen oxides in the exhaust gas of the engine. The second case is connected to the first case via a urea mixing pipe. The engine device is provided with a plurality of support leg bodies which are connected their one end sides to the engine, and a support base which is connected to a plurality of support leg bodies. The first case and the second case are arranged in the support base.
    Type: Application
    Filed: September 20, 2016
    Publication date: January 12, 2017
    Inventors: Tomoyuki KIMURA, Yoshiyuki SANDOU