Patents by Inventor Kazuki Maetani

Kazuki Maetani 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).

  • Patent number: 9790848
    Abstract: A marine engine includes a first turbocharger, a first intercooler, a second turbocharger, a second intercooler, an oil filter, and a top cover. The first turbocharger and the second turbocharger supply air by using an exhaust gas. The first intercooler and the second intercooler cool gases having passed through the turbochargers, respectively. The top cover is a cover arranged in an upper region of the marine engine. These devices are arranged so as not to overlap one another when seen in the thickness direction of the top cover.
    Type: Grant
    Filed: January 24, 2013
    Date of Patent: October 17, 2017
    Assignee: YANMAR CO., LTD.
    Inventors: Mitsuhiro Hibino, Kazuki Maetani
  • Patent number: 9777619
    Abstract: A ship engine includes a first turbocharger, a first intercooler, a second turbocharger, and a second intercooler. The first turbocharger is arranged at one end of the ship engine with respect to a crank axis direction. The first intercooler and the second turbocharger are arranged in an end portion of the ship engine with respect to a device width direction. The first intercooler and the second turbocharger are arranged side by side in the crank axis direction. The second intercooler is arranged at the other end (at the side opposite to the side where the first turbocharger is arranged) of the ship engine with respect to the crank axis direction.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: October 3, 2017
    Assignees: Yanmar Co., Ltd., FEV GMBH
    Inventors: Mitsuhiro Hibino, Kazuki Maetani, Frank Haubner, Jeroen Slotman, Moritz Baehr
  • Publication number: 20150083083
    Abstract: A marine engine includes an exhaust manifold, a valve cover, a top cover, and a fuel supply pipe. The exhaust manifold collects exhaust gases discharged from a plurality of cylinders. The valve cover is a cover that covers all of a plurality of valves for air intake or air discharge to or from the cylinders. The top cover is a cover that covers the valve cover. The fuel supply pipe is arranged in a space between the valve cover and the top cover, and allows a fuel to flow therethrough. The top cover is provided with a partition that is arranged so as to separate the side where the exhaust gas flows immediately after being discharged from the exhaust manifold from the side where the fuel supply pipe is arranged.
    Type: Application
    Filed: January 24, 2013
    Publication date: March 26, 2015
    Inventors: Kazuki Maetani, Mitsuhiro Hibino
  • Publication number: 20150053185
    Abstract: A marine engine includes a first turbocharger, a first intercooler, a second turbocharger, a second intercooler, an oil filter, and a top cover. The first turbocharger and the second turbocharger supply air by using an exhaust gas. The first intercooler and the second intercooler cool gases having passed through the turbochargers, respectively. The top cover is a cover arranged in an upper region of the marine engine. These devices are arranged so as not to overlap one another when seen in the thickness direction of the top cover.
    Type: Application
    Filed: January 24, 2013
    Publication date: February 26, 2015
    Inventors: Mitsuhiro Hibino, Kazuki Maetani
  • Publication number: 20140369863
    Abstract: A ship engine includes a first turbocharger, a first intercooler, a second turbocharger, and a second intercooler. The first turbocharger is arranged at one end of the ship engine with respect to a crank axis direction. The first intercooler and the second turbocharger are arranged in an end portion of the ship engine with respect to a device width direction. The first intercooler and the second turbocharger are arranged side by side in the crank axis direction. The second intercooler is arranged at the other end (at the side opposite to the side where the first turbocharger is arranged) of the ship engine with respect to the crank axis direction.
    Type: Application
    Filed: January 11, 2013
    Publication date: December 18, 2014
    Inventors: Mitsuhiro Hibino, Kazuki Maetani, Frank Haubner, Jeroen Slotman, Moritz Baehr
  • Patent number: 8857176
    Abstract: An engine provided with a variable parallel supercharging system (9) comprising a first supercharger (10) which is driven by exhaust gas which flows in a first exhaust gas route (41) and which pressurizes intake air which flows in a first intake air route (3) and also comprising a second supercharger (20) which is driven by exhaust gas which flows in a second exhaust gas route (42) and which pressurizes intake air which flows in a second intake air route (4), a supercharging pressure sensor (63) for detecting the pressure of the pressurized intake air, a first supercharger rotation sensor (61) for detecting the rotational speed of the first supercharger (10), a second supercharger rotation sensor (62) for detecting the rotational speed of the second supercharger (20), a first variable actuator (14) for adjusting the capacity of the first supercharger (10), a second variable actuator (24) for adjusting the capacity of the second supercharger (20), and a control device for controlling each of the variable actua
    Type: Grant
    Filed: September 17, 2009
    Date of Patent: October 14, 2014
    Assignee: Yanmar Co., Ltd.
    Inventors: Takeshi Takahashi, Hidenori Nomura, Kazuki Maetani, Terumitsu Takahata, Takao Kawabe, Kazuhiro Takenaka
  • Patent number: 8544269
    Abstract: An engine (100) provided with a variable series supercharging system (7) composed of a high-pressure supercharger (10) and a low-pressure supercharger (20), a supercharging pressure sensor (63) for detecting the pressure of intake air pressurized by the variable series supercharging system (7), a high-pressure supercharger rotation sensor (61) for detecting the rotational speed of the high-pressure supercharger (10), a variable actuator (14) for adjusting the capacity of the high-pressure supercharger (10), and a control device (60) capable of controlling the variable actuator (14). The control device (60) controls the variable actuator (14) based on detection signals from the supercharging pressure sensor (63) and the high-pressure supercharger rotation sensor (61).
    Type: Grant
    Filed: September 17, 2009
    Date of Patent: October 1, 2013
    Assignee: Yanmar Co., Ltd.
    Inventors: Takeshi Takahashi, Hidenori Nomura, Kazuki Maetani, Terumitsu Takahata, Takao Kawabe, Kazuhiro Takenaka
  • Publication number: 20110192161
    Abstract: An engine (100) provided with a variable series supercharging system (7) composed of a high-pressure supercharger (10) and a low-pressure supercharger (20), a supercharging pressure sensor (63) for detecting the pressure of intake air pressurized by the variable series supercharging system (7), a high-pressure supercharger rotation sensor (61) for detecting the rotational speed of the high-pressure supercharger (10), a variable actuator (14) for adjusting the capacity of the high-pressure supercharger (10), and a control device (60) capable of controlling the variable actuator (14). The control device (60) controls the variable actuator (14) based on detection signals from the supercharging pressure sensor (63) and the high-pressure supercharger rotation sensor (61).
    Type: Application
    Filed: September 17, 2009
    Publication date: August 11, 2011
    Applicant: Yanmar Co., Ltd.
    Inventors: Takeshi Takahaski, Hidenori Nomura, Kazuki Maetani, Terumitsu Takahata, Takao Kawabe, Kazuhiro Takenaka
  • Publication number: 20110192160
    Abstract: An engine provided with a variable parallel supercharging system (9) comprising a first supercharger (10) which is driven by exhaust gas which flows in a first exhaust gas route (41) and which pressurizes intake air which flows in a first intake air route (3) and also comprising a second supercharger (20) which is driven by exhaust gas which flows in a second exhaust gas route (42) and which pressurizes intake air which flows in a second intake air route (4), a supercharging pressure sensor (63) for detecting the pressure of the pressurized intake air, a first supercharger rotation sensor (61) for detecting the rotational speed of the first supercharger (10), a second supercharger rotation sensor (62) for detecting the rotational speed of the second supercharger (20), a first variable actuator (14) for adjusting the capacity of the first supercharger (10), a second variable actuator (24) for adjusting the capacity of the second supercharger (20), and a control device for controlling each of the variable actua
    Type: Application
    Filed: September 17, 2009
    Publication date: August 11, 2011
    Applicant: Yanmar Co., Ltd.
    Inventors: Takeshi Takahashi, Hidenori Nomura, Kazuki Maetani, Terumitsu Takahata, Takao Kawabe, Kazuhiro Takenaka
  • Patent number: D710388
    Type: Grant
    Filed: January 17, 2014
    Date of Patent: August 5, 2014
    Assignee: Yanmar Co., Ltd.
    Inventors: Kiyoyuki Okuyama, Nobuaki Hiromatsu, Kazuki Maetani