Patents by Inventor Yoshihiro Sukegawa

Yoshihiro Sukegawa 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: 20210140388
    Abstract: Combustion stability can be improved while HC and PN discharged from a combustion chamber are prevented. In an ECU that controls a fuel injection device installed in a combustion chamber of an internal-combustion engine so as to be able to inject fuel in a direction intersecting with a sliding direction of a piston, a pressure value of the fuel supplied to the fuel injection device is acquired, control is performed such that the fuel injection device injects the fuel at least twice in a compression stroke, and control is performed such that fuel injection timing of at least one time in the compression stroke is advanced earlier than fuel injection timing of a time corresponding to the high pressure value of the fuel when the acquired fuel pressure value is low.
    Type: Application
    Filed: May 11, 2018
    Publication date: May 13, 2021
    Inventors: Ryo KUSAKABE, Yoshihiro SUKEGAWA, Kenichiroh OGATA, Masayuki SARUWATARI
  • Publication number: 20210131372
    Abstract: An object of the present invention is to provide a control device of an injector capable of suppressing the influence of pressure reduction boiling even if pressure in a combustion chamber is low. In a case where the temperature of fuel injected from a fuel injection valve is within a set high temperature region and the pressure of the combustion chamber is within a set low pressure region, the control device of an in-cylinder direct injection-type injector according to the present invention controls to increase a lift amount of the injector as compared to the case of a low temperature region or a high pressure region.
    Type: Application
    Filed: February 5, 2018
    Publication date: May 6, 2021
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Tomoyuki HOSAKA, Taisuke SUGII, Eiji ISHII, Kazuki YOSHIMURA, Yoshihiro SUKEGAWA, Masayuki SARUWATARI
  • Publication number: 20210102511
    Abstract: It is an object of the present invention to provide a novel internal-combustion engine piston which makes it possible to achieve both an improvement in thermal efficiency and a reduction in exhaust harmful components, and to suppress the occurrence of abnormal combustion such as knocking and pre-ignition. A cooling passage is formed in a piston, and on a top face of the piston are provided a first heat shielding layer composed of a material having a lower thermal conductivity and volumetric specific heat than those of a piston base material, and a second heat shielding layer composed of a material having a lower thermal conductivity and volumetric specific heat than those of the first heat shielding layer, wherein a first distance between the first heat shielding layer and the cooling passage is set to be less than a second distance between the second heat shielding layer and the cooling passage.
    Type: Application
    Filed: April 12, 2018
    Publication date: April 8, 2021
    Inventors: Yoshihiro SUKEGAWA, Norikazu TAKAHASHI
  • Publication number: 20210095608
    Abstract: Provided is a control device for an internal combustion engine, which can control an injection amount of water injected into each cylinder of the internal combustion engine to a minimum injection amount that allows knock to be suppressed for each cylinder. Therefore, in a control device 1 that controls water supply valves 35 (water supply devices) that supply water into each of combustion chambers of a plurality of cylinders R (cylinders R1 to R3 in the embodiment) of an internal combustion engine 100, the control device 1 includes a water supply amount calculation unit 2 that calculates a supply amount of water supplied to each of the combustion chambers of the plurality of cylinders R1 to R3 for each cylinder, and a water supply control unit 3 that controls the water supply valves 35 based on the supply amount of water calculated by the water supply amount calculation unit 2 for each cylinder.
    Type: Application
    Filed: April 22, 2019
    Publication date: April 1, 2021
    Applicant: Hitachi Automotive Systems, Ltd.
    Inventors: Yoshihiro SUKEGAWA, Atsushi SHIMADA, Masayuki SARUWATARI
  • Patent number: 10837418
    Abstract: The invention provides an internal combustion engine control device capable of performing a stable combustion at a lean combustion limit. In an internal combustion engine control device that controls an internal combustion engine provided with an ignition device igniting an air-fuel mixture formed inside a combustion chamber, an intake side air temperature of the internal combustion engine is controlled in response to a compression ratio of the combustion chamber.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: November 17, 2020
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Kazuhiro Oryoji, Masayuki Saruwatari, Yoshihiro Sukegawa
  • Patent number: 10677208
    Abstract: Provided is a fuel injector that is capable of reducing penetration. The fuel injector of the present invention includes a valve body having a valve body side seat surface, a valve seat side seat surface that abuts on the valve body side seat surface, and an injection hole that is provided downstream of a position at which the valve body side seat surface abuts on the valve seat side seat surface. The valve body has a projection that is formed from the valve body side seat surface toward the injection hole, and the projection is formed to be smaller in a direction of fuel flow between seats than a radius of an upstream opening surface of the injection hole.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: June 9, 2020
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Tomoyuki Hosaka, Eiji Ishii, Yoshihiro Sukegawa, Taisuke Sugii, Kazuki Yoshimura, Kazuhiro Oryoji, Masayuki Saruwatari
  • Publication number: 20190390591
    Abstract: Provided is a piston for an internal combustion engine, the piston enabling both an improvement in heat efficiency and a reduction in emissions, and enabling the prevention of overheating of the piston to prevent the occurrence of knocking, pre-ignition, and a drop in air filling efficiency. This piston (100a) for an internal combustion engine constitutes a portion of a combustion chamber (9) of an internal combustion engine (200) and includes a substrate (103), a first film (101) provided on a section of the top surface of the substrate (103) contacting the combustion chamber (9), and a second film (102) provided on another section of the top surface. The piston for the internal combustion engine is characterized in that: the first film (101) has a lower heat conductivity and heat capacity than the substrate (103), and the second film (102) has a lower heat conductivity than the substrate (103) and a higher heat capacity than the first film (101).
    Type: Application
    Filed: February 2, 2018
    Publication date: December 26, 2019
    Applicant: Hitachi Automotive Systems, Ltd.
    Inventors: Yoshihiro SUKEGAWA, Norikazu TAKAHASHI, Ittou SUGIMOTO
  • Patent number: 10458347
    Abstract: To provide a novel power train system capable of improving fuel efficiency, reducing harmful components of an exhaust gas, and improving an output by adjusting a composition of a gas component of the exhaust gas in accordance with an operation condition. Therefore, provided is a power train system including a gas component separation unit (2) which extracts a plurality of gas components having different specific heat ratios from an exhaust gas of a spark ignition type internal combustion engine (1), a recirculation unit which recirculates the plurality of gas components to a combustion chamber of the internal combustion engine, and a ratio adjustment unit (3) which adjusts a ratio of the plurality of gas components recirculated to the combustion chamber in response to an operation state of the internal combustion engine. A composition of a gas recirculated to the internal combustion engine can be adjusted depending on various operation conditions.
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: October 29, 2019
    Assignee: HITACHI, LTD.
    Inventors: Yoshihiro Sukegawa, Masato Kaneeda, Shigeo Hatamiya
  • Publication number: 20190211763
    Abstract: Provided is a fuel injection device and a control unit therefor which enable reliable ignition even in a case where fuel pressure is low immediately after starting an engine. In the control unit for controlling an injector injecting fuel into an internal combustion engine, a plurality of injectors is provided in the internal combustion engine, a static flow rate of a first injector is configured to be smaller than a static flow rate of a second injector. In a case where a fuel pressure of fuel supplied by a pressurizing unit is lower than a set value set lower than a fuel pressure in warming up, an injection ratio of the first injector is controlled to increase according to a difference between a fuel pressure of fuel from the pressurizing unit and a fuel pressure in warming up.
    Type: Application
    Filed: August 2, 2017
    Publication date: July 11, 2019
    Applicant: Hitachi Automotive Systems, Ltd.
    Inventors: Tomoyuki HOSAKA, Taisuke SUGII, Eiji ISHII, Yoshihiro SUKEGAWA, Masayuki SARUWATARI
  • Patent number: 10309337
    Abstract: The purpose of the present invention is to provide a control device for an internal combustion engine with which it is possible to favorably control an engine even if there could occur a difference in temperatures of fuel injected into respective cylinders. The present invention is a control device for an internal combustion engine, for controlling an internal combustion engine provided with fuel injection valves for directly injecting fuel respectively to a plurality of cylinders, wherein: the control device is provided with a fuel temperature acquiring means for acquiring respective temperatures of fuel injected to each of the cylinders; and at least one of a fuel injection valve control amount, ignition control amount, and intake and exhaust valve control amount of each of the cylinders is set in accordance with the respective temperatures of fuel acquired by the fuel temperature acquiring means.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: June 4, 2019
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Yoshihiro Sukegawa, Takashi Okamoto
  • Publication number: 20190145305
    Abstract: An object of the invention is to form a highly homogeneous air-fuel mixture which is not influenced by an engine rotation speed. Therefore, the invention provides a fuel injection control device including a cylinder, a first injector disposed at an upper portion of the cylinder in the axial direction and a center portion thereof in the radial direction, an intake valve disposed at an upper portion of the cylinder in the axial direction and an outer portion thereof in the radial direction in relation to the first fuel injection device, and a second injector supplying fuel from an upper portion of the cylinder in the axial direction and at least an outer portion in the radial direction in relation to the intake valve, in which a rotation speed of the engine is high, a fuel supply amount ratio of the first injector with respect to the second injector is controlled to be larger than that of a case where the rotation speed is low.
    Type: Application
    Filed: July 29, 2016
    Publication date: May 16, 2019
    Inventors: Yuusuke KIHARA, Yoshihiro SUKEGAWA, Kazuhiro ORYOJI, Kenichiro OGATA, Minoru OOSUGA, Masayuki SARUWATARI
  • Publication number: 20190107041
    Abstract: Stratified air-fuel mixture is stably formed around an ignition plug during a stratified charge combustion operation. For this reason, to solve the above problem, the present invention provides an internal combustion engine control device for controlling an internal combustion engine. The internal combustion engine includes: a fluid injection valve provided along an axial direction of an ignition plug; and a fuel injection valve formed separately from the fluid injection valve and provided in a direction intersecting with the axial direction of the fluid injection valve, and the internal combustion engine control device includes a control unit which controls the fluid injection valve and the fuel injection valve so as to inject fluid from the fuel injection valve after injecting fluid from the fluid injection valve in a compression stroke.
    Type: Application
    Filed: March 22, 2017
    Publication date: April 11, 2019
    Inventors: Yoshihiro SUKEGAWA, Yuusuke KIHARA
  • Patent number: 10233799
    Abstract: An engine control device sets a target value for the engine oil temperature appropriately in an engine that uses gasoline as a fuel, even when the fuel does not have a single boiling point because the gasoline is a mixed composition, or when the fuel property changes (for example, when the vaporization property changes due to deterioration). In other words, the engine control device prevents excessive heating or insufficient heating by changing the oil temperature to the high side in a condition wherein the fuel being used does not easily vaporize, and changing the oil temperature to the low side in a condition wherein the fuel being used easily vaporizes. This engine control device includes an oil temperature controller that controls the temperature of oil lubricating the interior of the engine; a fuel supply device that supplies fuel to the engine; and a detector for detecting the property of the fuel. The temperature of the oil is controlled on the basis of a signal from the detector.
    Type: Grant
    Filed: January 7, 2015
    Date of Patent: March 19, 2019
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Kenichiroh Ogata, Takashi Okamoto, Yoshinobu Arihara, Yoshihiro Sukegawa
  • Publication number: 20190048842
    Abstract: The invention provides an internal combustion engine control device capable of performing a stable combustion at a lean combustion limit. In an internal combustion engine control device that controls an internal combustion engine provided with an ignition device igniting an air-fuel mixture formed inside a combustion chamber, an intake side air temperature of the internal combustion engine is controlled in response to a compression ratio of the combustion chamber.
    Type: Application
    Filed: August 2, 2016
    Publication date: February 14, 2019
    Inventors: Kazuhiro ORYOJI, Masayuki SARUWATARI, Yoshihiro SUKEGAWA
  • Publication number: 20190040814
    Abstract: A fuel injection valve capable of forming a homogeneous air-fuel mixture in homogeneous combustion at a low engine speed and a control device thereof are provided. According to the present invention, a fluid injection valve that is configured separately from a fuel injection valve and has a function of injecting a fluid is provided and a control device of the fuel injection valve includes a control unit that performs control such that fuel is injected from the fuel injection valve and then controls the fluid injection valve such that the fluid is injected from the fluid injection valve and the fuel injected from the fuel injection valve is stirred.
    Type: Application
    Filed: November 16, 2016
    Publication date: February 7, 2019
    Inventors: Tomoyuki HOSAKA, Taisuke SUGII, Eiji ISHII, Yoshihiro SUKEGAWA, Masayuki SARUWATARI, Kazuhiro ORYOJI
  • Publication number: 20180291833
    Abstract: The purpose of the present invention is to provide a control device for an internal combustion engine with which it is possible to favorably control an engine even if there could occur a difference in temperatures of fuel injected into respective cylinders. The present invention is a control device for an internal combustion engine, for controlling an internal combustion engine provided with fuel injection valves for directly injecting fuel respectively to a plurality of cylinders, wherein: the control device is provided with a fuel temperature acquiring means for acquiring respective temperatures of fuel injected to each of the cylinders; and at least one of a fuel injection valve control amount, ignition control amount, and intake and exhaust valve control amount of each of the cylinders is set in accordance with the respective temperatures of fuel acquired by the fuel temperature acquiring means.
    Type: Application
    Filed: November 25, 2015
    Publication date: October 11, 2018
    Inventors: Yoshihiro SUKEGAWA, Takashi OKAMOTO
  • Publication number: 20180209361
    Abstract: To provide a novel power train system capable of improving fuel efficiency, reducing harmful components of an exhaust gas, and improving an output by adjusting a composition of a gas component of the exhaust gas in accordance with an operation condition. Therefore, provided is a power train system including a gas component separation unit (2) which extracts a plurality of gas components having different specific heat ratios from an exhaust gas of a spark ignition type internal combustion engine (1), a recirculation unit which recirculates the plurality of gas components to a combustion chamber of the internal combustion engine, and a ratio adjustment unit (3) which adjusts a ratio of the plurality of gas components recirculated to the combustion chamber in response to an operation state of the internal combustion engine. A composition of a gas recirculated to the internal combustion engine can be adjusted depending on various operation conditions.
    Type: Application
    Filed: July 27, 2015
    Publication date: July 26, 2018
    Applicant: Hitachi, Ltd.
    Inventors: Yoshihiro SUKEGAWA, Masato KANEEDA, Shigeo HATAMIYA
  • Publication number: 20180149127
    Abstract: Provided is a fuel injector that is capable of reducing penetration. The fuel injector of the present invention includes a valve body having a valve body side seat surface, a valve seat side seat surface that abuts on the valve body side seat surface, and an injection hole that is provided downstream of a position at which the valve body side seat surface abuts on the valve seat side seat surface. The valve body has a projection that is formed from the valve body side seat surface toward the injection hole, and the projection is formed to be smaller in a direction of fuel flow between seats than a radius of an upstream opening surface of the injection hole.
    Type: Application
    Filed: April 8, 2016
    Publication date: May 31, 2018
    Applicant: Hitachi Automotive Systems, Ltd.
    Inventors: Tomoyuki HOSAKA, Eiji ISHII, Yoshihiro SUKEGAWA, Taisuke SUGII, Kazuki YOSHIMURA, Kazuhiro ORYOJI, Masayuki SARUWATARI
  • Publication number: 20170314500
    Abstract: The purpose of the present invention is to provide an engine control device with which it is possible to minimize decreases in combustion speed even when the EGR rate has been increased.
    Type: Application
    Filed: September 16, 2015
    Publication date: November 2, 2017
    Inventors: Kenichiroh OGATA, Takashi OKAMOTO, Yoshinobu ARIHARA, Kazuhiro ORYOJI, Yoshihiro SUKEGAWA, Yuusuke KIHARA
  • Publication number: 20170306825
    Abstract: Provided is a CO2 recovery device of an internal combustion engine capable of efficiently recovering CO2 emitted from an internal combustion engine or CO2 in the air, and of efficiently synthesizing methane using CO2. A CO2 recovery device of an internal combustion engine includes a CO2 capturing material disposed at a through channel of gas including CO2 to capture CO2 in the gas, and methanation catalyst to let CO2 desorbed from the CO2 capturing material react with H2 obtained from a H2 supply source to generate methane. The CO2 recovery device has a function to raise temperature of the CO2 capturing material using heat generated from the internal combustion engine to desorb CO2.
    Type: Application
    Filed: October 7, 2015
    Publication date: October 26, 2017
    Applicant: HITACHI, LTD.
    Inventors: Masato KANEEDA, Hisayuki ORITA, Motoyuki ABE, Yoshihiro SUKEGAWA, Kazuhiro ORYOJI, Yuuki OKUDA