Patents by Inventor Manabu Tateno

Manabu Tateno 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: 10309293
    Abstract: A thermal insulation film is formed on a bottom surface of a cylinder head facing a top surface of a piston. The thermal insulation film in a region (a circumferential region) of a bottom surface of the cylinder head configuring a squish area in a circumferential edge of a cavity region is formed to be thinner than the thermal insulation film in a region (a cavity region) of the bottom surface of the cylinder head facing a cavity. The thermal insulation film in the circumferential region is polished, and surface roughness thereof is equal to or lower than 3 ?m. The thermal insulation film in the cavity region is not polished, and surface roughness thereof is 3 to 8 ?m on average.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: June 4, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Manabu Tateno
  • Patent number: 10280808
    Abstract: A Rankine cycle system includes a boiler configured to apply waste heat to refrigerant circulating in an internal-combustion engine to vaporize the refrigerant; a gas-liquid separator configured to separate gas-liquid two-phase refrigerant, sent from the boiler, into gas phase fluid and liquid phase fluid; a superheater configured to superheat the gas phase fluid, sent from the gas-liquid separator, through heat exchange with exhaust gas of the internal-combustion engine; an expander configured to expand the gas phase fluid, passing through the superheater, to recover thermal energy, and a condenser configured to condense the gas phase fluid, passing through the expander, to return the gas phase fluid to liquid phase fluid. The gas-liquid separator is connected to the internal combustion engine via a refrigerant pipe. The internal combustion engine is fixed onto an engine mount of a vehicle. The gas-liquid separator is fixed to the internal combustion engine via a bracket.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: May 7, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Manabu Tateno
  • Patent number: 10253656
    Abstract: A Rankine cycle system includes a boiler configured to apply waste heat to refrigerant circulating in an internal-combustion engine to vaporize the refrigerant; a gas-liquid separator configured to separate gas-liquid two-phase refrigerant, sent from the boiler, into gas phase fluid and liquid phase fluid; a superheater configured to superheat the gas phase fluid, sent from the gas-liquid separator, through heat exchange with exhaust gas of the internal-combustion engine; an expander configured to expand the gas phase fluid, passing through the superheater, to recover thermal energy, and a condenser configured to condense the gas phase fluid, passing through the expander, to return the gas phase fluid to liquid phase fluid. The gas-liquid separator is fixed to a cylinder head of the internal-combustion engine. It is preferable that the gas-liquid separator is configured to include a bracket, and is fixed to the cylinder head via the bracket.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: April 9, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Manabu Tateno
  • Patent number: 10173372
    Abstract: A second heat-shielding film 20 produced by anodizing treatment of both surfaces of pure Al foil with an Al purity equal to or larger than 99.0% is disposed on a surface of a first heat-shielding film 12 that is formed by anodizing treatment of a surface of a combustion chamber configuring component 10 formed from an Al alloy (Al purity of less than 99.0%) as a based material. A heat resistant adhesive is poured from between these heat-shielding films, and the heat resistant adhesive is heated and cured (an intermediate layer 22). Since the second heat-shielding film has low surface roughness Ra of an average of approximately 1.0 ?m even in an unpolished state, polishing or the like for the film with an objective of smoothing after bonding of the second heat-shielding film can be omitted. Further, the heat-shielding film structure with a smoothed surface can be provided.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: January 8, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Manabu Tateno
  • Publication number: 20180313233
    Abstract: A waste heat recovery system includes an evaporator that evaporates a coolant in a liquid phase by using waste heat from an internal combustion engine, a turbine that rotates by receiving the coolant in a gas phase having passed through the evaporator, a condenser that condenses the coolant in the gas phase having passed through the turbine into the coolant in the liquid phase, and a pump that supplies the coolant in the liquid phase fed from the condenser to the evaporator. The waste heat recovery system further includes a coupling mechanism that constantly couples a rotating shaft of the turbine to a crankshaft of the internal combustion engine, and the crankshaft is directly coupled to a vehicle transmission.
    Type: Application
    Filed: March 27, 2018
    Publication date: November 1, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Manabu Tateno
  • Publication number: 20180305836
    Abstract: A second heat-shielding film 20 produced by anodizing treatment of both surfaces of pure Al foil with an Al purity equal to or larger than 99.0% is disposed on a surface of a first heat-shielding film 12 that is formed by anodizing treatment of a surface of a combustion chamber configuring component 10 formed from an Al alloy (Al purity of less than 99.0%) as a based material. A heat resistant adhesive is poured from between these heat-shielding films, and the heat resistant adhesive is heated and cured (an intermediate layer 22). Since the second heat-shielding film has low surface roughness Ra of an average of approximately 1.0 ?m even in an unpolished state, polishing or the like for the film with an objective of smoothing after bonding of the second heat-shielding film can be omitted. Further, the heat-shielding film structure with a smoothed surface can be provided.
    Type: Application
    Filed: June 29, 2018
    Publication date: October 25, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Manabu Tateno
  • Publication number: 20180266360
    Abstract: A waste heat recovery apparatus includes an evaporator, an expander, a condenser, a liquid-phase refrigerant supply device, and a control device. The control device is configured to control the liquid-phase refrigerant supply device so as to bring the supply of the liquid-phase refrigerant by the liquid-phase refrigerant supply device into a stopped state at least until an amount of the liquid-phase refrigerant stored in the evaporator becomes equal to or lower than a predetermined low refrigerant amount, during operation of the internal combustion engine.
    Type: Application
    Filed: March 15, 2018
    Publication date: September 20, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Manabu TATENO
  • Patent number: 9957916
    Abstract: The present invention relates to an internal combustion engine. An object of the invention is to allow an effect produced by an anodic oxide film to be exerted while suppressing a decrease in the combustion rate. A piston 10 includes a cavity portion 20 and a tapered portion 26 that is formed so as to surround the cavity portion 20 on an outer side thereof. The diameter of the tapered portion 26 decreases progressively in the downward direction from the top face side of the piston. A squish portion 28 is formed on an outer side of the tapered portion 26. An anodic oxide film 30 is formed on a surface (tapered face) of the tapered portion 26 and a surface (squish face) of the squish portion 28. The anodic oxide film 30 is not formed on the surface (cavity face) of the cavity portion 20.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: May 1, 2018
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Manabu Tateno, Akio Kawaguchi, Hideyuki Nishida, Hideo Yamashita, Hiroki Iguma, Akira Yamashita, Kazuyasu Iwata
  • Publication number: 20170284281
    Abstract: A thermal insulation film is formed on a bottom surface of a cylinder head facing a top surface of a piston. The thermal insulation film in a region (a circumferential region) of a bottom surface of the cylinder head configuring a squish area in a circumferential edge of a cavity region is formed to be thinner than the thermal insulation film in a region (a cavity region) of the bottom surface of the cylinder head facing a cavity. The thermal insulation film in the circumferential region is polished, and surface roughness thereof is equal to or lower than 3 ?m. The thermal insulation film in the cavity region is not polished, and surface roughness thereof is 3 to 8 ?m on average.
    Type: Application
    Filed: August 11, 2015
    Publication date: October 5, 2017
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Manabu TATENO
  • Publication number: 20170175588
    Abstract: A Rankine cycle system includes a boiler configured to apply waste heat to refrigerant circulating in an internal-combustion engine to vaporize the refrigerant; a gas-liquid separator configured to separate gas-liquid two-phase refrigerant, sent from the boiler, into gas phase fluid and liquid phase fluid; a superheater configured to superheat the gas phase fluid, sent from the gas-liquid separator, through heat exchange with exhaust gas of the internal-combustion engine; an expander configured to expand the gas phase fluid, passing through the superheater, to recover thermal energy, and a condenser configured to condense the gas phase fluid, passing through the expander, to return the gas phase fluid to liquid phase fluid. The gas-liquid separator is connected to the internal combustion engine via a refrigerant pipe. The internal combustion engine is fixed onto an engine mount of a vehicle. The gas-liquid separator is fixed to the internal combustion engine via a bracket.
    Type: Application
    Filed: October 28, 2016
    Publication date: June 22, 2017
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Manabu TATENO
  • Publication number: 20170175587
    Abstract: A Rankine cycle system includes a boiler configured to apply waste heat to refrigerant circulating in an internal-combustion engine to vaporize the refrigerant; a gas-liquid separator configured to separate gas-liquid two-phase refrigerant, sent from the boiler, into gas phase fluid and liquid phase fluid; a superheater configured to superheat the gas phase fluid, sent from the gas-liquid separator, through heat exchange with exhaust gas of the internal-combustion engine; an expander configured to expand the gas phase fluid, passing through the superheater, to recover thermal energy, and a condenser configured to condense the gas phase fluid, passing through the expander, to return the gas phase fluid to liquid phase fluid. The gas-liquid separator is fixed to a cylinder head of the internal-combustion engine. It is preferable that the gas-liquid separator is configured to include a bracket, and is fixed to the cylinder head via the bracket.
    Type: Application
    Filed: October 27, 2016
    Publication date: June 22, 2017
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Manabu TATENO
  • Publication number: 20160305037
    Abstract: A second heat-shielding film 20 produced by anodizing treatment of both surfaces of pure Al foil with an Al purity equal to or larger than 99.0% is disposed on a surface of a first heat-shielding film 12 that is formed by anodizing treatment of a surface of a combustion chamber configuring component 10 formed from an Al alloy (Al purity of less than 99.0%) as a based material. A heat resistant adhesive is poured from between these heat-shielding films, and the heat resistant adhesive is heated and cured (an intermediate layer 22). Since the second heat-shielding film has low surface roughness Ra of an average of approximately 1.0 ?m even in an unpolished state, polishing or the like for the film with an objective of smoothing after bonding of the second heat-shielding film can be omitted. Further, the heat-shielding film structure with a smoothed surface can be provided.
    Type: Application
    Filed: April 8, 2016
    Publication date: October 20, 2016
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Manabu TATENO
  • Publication number: 20160273484
    Abstract: The present invention relates to an internal combustion engine. An object of the invention is to allow an effect produced by are anodic oxide film to be exerted while suppressing a decrease in the combustion rate. A piston 10 includes a cavity portion 20 and a tapered portion 26 that is formed so as to surround the cavity portion 20 on an outer side thereof. The diameter of the tapered portion 26 decreases progressively in the downward direction from the top face side of the piston. A squish portion 28 is formed on an outer side of the tapered portion 26. An anodic oxide film 30 is formed on a surface (tapered face) of the tapered portion 26 and a surface (squish face) of the squish portion 28. The anodic oxide film 30 is not formed on the surface (cavity face) of the cavity portion 20.
    Type: Application
    Filed: September 12, 2014
    Publication date: September 22, 2016
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Manabu TATENO, Akio KAWAGUCHI, Hideyuki NISHIDA, Hideo YAMASHITA, Hiroki IGUMA, Akira YAMASHITA, Kazuyasu IWATA
  • Patent number: 9309816
    Abstract: The present variable compression ratio V-type internal combustion engine is a variable compression ratio V-type internal combustion engine which joins cylinder blocks of two cylinder groups and makes the joined cylinder block move relatively to a crankcase, wherein at each relative movement position of the joined cylinder block, the intake valve closing timings of the cylinders are controlled so that the actual compression ratios of the two cylinder groups become equal and thus the temperature difference and pressure difference in the cylinders at top dead center between the two cylinder groups are reduced.
    Type: Grant
    Filed: December 16, 2009
    Date of Patent: April 12, 2016
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Eiichi Kamiyama, Manabu Tateno, Naoto Hisaminato
  • Patent number: 9222435
    Abstract: A stirling engine 10A includes: cylinders 22 and 32; pistons 21 and 31, gas lubrication being performed between the corresponding cylinders 22 and 32 and the pistons 21 and 31; a crankcase 62 that is provided with a crankshaft 61 converting a reciprocating movement of the pistons 21 and 31 into a rotational movement; and a cooler 45 that cools a working fluid performing expansion work, wherein a start timing is adjusted based on an internal humidity of the crankcase 62.
    Type: Grant
    Filed: November 2, 2011
    Date of Patent: December 29, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Satoshi Komori, Masaaki Katayama, Manabu Tateno
  • Publication number: 20150354083
    Abstract: A method for forming a heat insulating film includes: a step of subjecting an aluminum alloy constituting a surface of a base material to an anodic oxidation treatment to form an anodic oxidation coating film having pores formed in the surface thereat a step of coating on the surface of the anodic oxidation coating film a sealing material that includes a silicon-based polymer solution and particles of a heat insulating material that are dispersed in the silicon-based polymer solution and are particles having an average particle diameter that is larger than an average pore diameter of the pores; and a step of drying and baking the sealing material to form a sealing coating film.
    Type: Application
    Filed: June 8, 2015
    Publication date: December 10, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroki IGUMA, Akio KAWAGUCHI, Manabu TATENO, Hideo YAMASHITA, Yoshifumi WAKISAKA
  • Patent number: 9086021
    Abstract: An intake apparatus of an engine includes: a first intake passage supplying fresh air to a cylinder; a second intake passage arranged near the first intake passage, and supplying fresh air to the cylinder; a first intake valve opening and closing the first intake passage at an aperture of the first intake passage; a second intake valve opening and closing the second intake passage at an aperture of the second intake passage. An opening timing of the first intake valve of the intake apparatus advances relative to a top dead center, and a valve lift amount of the first intake valve differs from that of the second intake valve, and there is a period while the valve lift amount of the first intake valve is larger than that of the second intake valve, in an intake stroke.
    Type: Grant
    Filed: October 19, 2010
    Date of Patent: July 21, 2015
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takeshi Okumura, Manabu Tateno, Naoto Hisaminato
  • Patent number: 9086032
    Abstract: A Stirling engine includes a base member that connects a housing portion with a heater that heats a working fluid using exhaust heat of a main engine, and a support member that supports the Stirling engine at the base member is provided.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: July 21, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Manabu Tateno, Masaaki Katayama, Satosi Komori
  • Patent number: 9032919
    Abstract: A spark ignition type internal combustion engine includes a plurality of cylinders and can stop combustion in part of these cylinders. Further, the spark ignition type internal combustion engine comprises a variable compression ratio mechanism (A) which can change an mechanical compression ratio, and a variable valve timing mechanism (B) which can control a closing timing of an intake valve. When idling part of the cylinders or increasing idled cylinders, the closing timing of an intake valve (7) moves in a direction which approaches an intake bottom dead center side, and the mechanical compression ratio of the operating cylinders falls. By idling part of the plurality of cylinders in this way, it is possible to realize a high heat efficiency even in a region where the engine load is low.
    Type: Grant
    Filed: December 4, 2009
    Date of Patent: May 19, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Naoto Hisaminato, Eiichi Kamiyama, Manabu Tateno
  • Patent number: 9027521
    Abstract: An intake apparatus of an engine includes: a first intake passage supplying fresh air to a cylinder; a second intake passage arranged near the first intake passage, and supplying fresh air to the cylinder; a first intake valve opening and closing the first intake passage at an aperture of the first intake passage; a second intake valve opening and closing the second intake passage at an aperture of the second intake passage. An opening timing of the first intake valve of the intake apparatus advances relative to a top dead center, and a valve lift amount of the first intake valve differs from that of the second intake valve, and there is a period while the valve lift amount of the first intake valve is larger than that of the second intake valve, in an intake stroke.
    Type: Grant
    Filed: October 19, 2010
    Date of Patent: May 12, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Takeshi Okumura, Manabu Tateno, Naoto Hisaminato