Patents by Inventor Makoto Ozaki
Makoto Ozaki 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).
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Patent number: 11965431Abstract: A turbine is provided with: a turbine wheel configured to rotate about an axis O1; a turbine housing accommodating the turbine wheel and defining an annular nozzle passage on the outer peripheral side of the turbine wheel; and a plurality of low solidity nozzle vanes 6 arranged in the nozzle passage at an interval in the circumferential direction. Circumferentially adjacent low solidity nozzle vanes 6 are disposed at different radial positions in a connection position of each of the low solidity nozzle vanes 6 with a hub-side wall surface of the hub-side wall surface and a shroud-side wall surface which define the nozzle passage.Type: GrantFiled: January 7, 2020Date of Patent: April 23, 2024Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTDInventors: Nao Taniguchi, Toyotaka Yoshida, Makoto Ozaki, Nobuhito Oka
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Publication number: 20240051338Abstract: For a cap tread layer of a pneumatic tire, a rubber composition is used, which contains from 60 to 90 parts by mass of silica per 100 parts by mass of a diene rubber containing from 15 to 30 mass % of a natural rubber, from 40 to 70 mass % of a terminal-modified styrene-butadiene rubber having a vinyl content of from 35 to 45 mass %, and from 15 to 30 mass % of a modified butadiene rubber obtained by modifying an active terminal of a conjugated diene polymer with at least a hydrocarbyloxysilane compound, the total of these being 100 mass %. A hardness Hu of the undertread Layer and a hardness Hc of the cap tread layer satisfy the relationship of Hu>Hc. The hardness Hc is 63 or greater and 67 or less. A difference ?H between the hardness Hu and the hardness Hc is 10 or more.Type: ApplicationFiled: December 24, 2021Publication date: February 15, 2024Inventors: Ayaki KAZARIYA, Makoto OZAKI, Hideaki SAWA
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Patent number: 11808174Abstract: A turbine includes: a rotatable impeller with a hub provided with a plurality of rotor blades; and a tubular member in which a diffuser located downstream of the impeller is formed. On an inner surface of the tubular member, a plurality of projections projecting radially inward of the tubular member are formed at positions closer to an inlet end of the tubular member than an outlet end of the tubular member. The plurality of projections are arranged in a circumferential direction of the inner surface so as to leave a space between adjacent projections.Type: GrantFiled: April 23, 2020Date of Patent: November 7, 2023Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.Inventors: Toyotaka Yoshida, Makoto Ozaki
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Patent number: 11680539Abstract: An internal combustion engine with a turbocharger according to an embodiment includes a cylinder block internally including a plurality of cylinders, a cylinder head disposed on top of the cylinder block, and internally including a plurality of exhaust flow passages through which exhaust air discharged from each of the plurality of cylinders flows, and the turbocharger including a rotational shaft, a turbine wheel, and a compressor wheel, the turbine wheel being disposed at one end of the rotational shaft, the compressor wheel being disposed at the other end of the rotational shaft. At least the turbine wheel of the turbocharger is arranged inside the cylinder head.Type: GrantFiled: January 29, 2018Date of Patent: June 20, 2023Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.Inventors: Takao Yokoyama, Makoto Ozaki
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Patent number: 11619134Abstract: A mixed-flow turbine wheel includes: a plurality of rotor blades disposed on a circumferential surface of the hub at intervals in a circumferential direction and configured such that each of the plurality of rotor blades has a leading edge which includes, in a meridional view, an oblique edge portion where a distance between the leading edge and an axis of the rotational shaft decreases from a tip side toward a hub side, and a sensor detection surface having a flat shape and being applied with a marking which is detectable by an optical sensor device.Type: GrantFiled: August 22, 2016Date of Patent: April 4, 2023Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.Inventors: Koji Wakashima, Makoto Ozaki, Kimio Hatano, Bumpei Hashimoto, Hiroshi Saito, Takuya Rikimaru
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Publication number: 20230099007Abstract: A turbine includes: a rotatable impeller with a hub provided with a plurality of rotor blades; and a tubular member in which a diffuser located downstream of the impeller is formed. On an inner surface of the tubular member, a plurality of projections projecting radially inward of the tubular member are formed at positions closer to an inlet end of the tubular member than an outlet end of the tubular member. The plurality of projections are arranged in a circumferential direction of the inner surface so as to leave a space between adjacent projections.Type: ApplicationFiled: April 23, 2020Publication date: March 30, 2023Applicant: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.Inventors: Toyotaka YOSHIDA, Makoto OZAKI
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Patent number: 11603859Abstract: Provided are a variable geometry turbine and a supercharger including the same that can change flow rate characteristics of a turbine in accordance with engine output with simple structure and can adjust the flow angle of a fluid flowing into a turbine impeller to any angle in the circumferential direction of the turbine impeller. The variable geometry turbine (10) includes a turbine impeller (12) configured to rotate about an axis line, a turbine housing (30) configured to accommodate the turbine impeller (12) and form a throat passage (32) and a scroll flow channel (34) on the outer circumferential side of the turbine impeller (12), the scroll flow channel (34) communicating with the throat passage (32), and a width changing mechanism in which a width change portion (52) that changes a passage width of the throat passage (32) along the circumferential direction of the turbine impeller (12) is movable in the width direction of the passage width.Type: GrantFiled: April 19, 2019Date of Patent: March 14, 2023Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.Inventors: Toyotaka Yoshida, Makoto Ozaki
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Patent number: 11585265Abstract: A surge suppression device for suppressing surge in an exhaust turbine-type turbocharger includes: a high-pressure tank configured to accumulate high-pressure gas with a higher pressure than atmospheric pressure; a high-pressure gas injection line connecting the high-pressure tank and an upstream intake passage on an upstream side of a compressor of the turbocharger; an on-off valve configured to open and close the high-pressure gas injection line; and a control device configured to control the on-off valve on the basis of a relationship between a pressure ratio of the compressor of the turbocharger and an intake flow rate.Type: GrantFiled: March 14, 2019Date of Patent: February 21, 2023Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.Inventors: Yutaka Fujita, Nobuhito Oka, Makoto Ozaki
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Publication number: 20230027258Abstract: A turbine is provided with: a turbine wheel configured to rotate about an axis O1; a turbine housing accommodating the turbine wheel and defining an annular nozzle passage on the outer peripheral side of the turbine wheel; and a plurality of low solidity nozzle vanes 6 arranged in the nozzle passage at an interval in the circumferential direction. Circumferentially adjacent low solidity nozzle vanes 6 are disposed at different radial positions in a connection position of each of the low solidity nozzle vanes 6 with a hub-side wall surface of the hub-side wall surface and a shroud-side wall surface which define the nozzle passage.Type: ApplicationFiled: January 7, 2020Publication date: January 26, 2023Applicant: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.Inventors: Nao TANIGUCHI, Toyotaka YOSHIDA, Makoto OZAKI, Nobuhito OKA
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Patent number: 11428108Abstract: A turbine housing includes: a scroll section configured to internally define a spiral space; a cylindrical exhaust gas introduction section having an exhaust gas introduction port and configured to internally define a connection passage connecting the exhaust gas introduction port and the spiral space; a sheet metal inner scroll member disposed in the spiral space to form a first heat-shielding space between the inner scroll member and an inner surface of the scroll section and configured to internally define a spiral flow passage through which exhaust gas entering through the exhaust gas introduction port flows; and a sheet metal inlet member separate from the inner scroll member, disposed in the connection passage to form a second heat-shielding space between the inlet member and an inner surface of the exhaust gas introduction section, and configured to internally define a connection flow passage connecting the exhaust gas introduction port and the spiral flow passage.Type: GrantFiled: February 25, 2019Date of Patent: August 30, 2022Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.Inventors: Tsuyoshi Kitamura, Makoto Ozaki
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Publication number: 20220266632Abstract: Provided is a pneumatic tire. A belt cover layer made of an organic fiber cord spirally wound along the tire circumferential direction is provided on the outer circumferential side of a belt layer in a tread portion, and a polyethylene terephthalate fiber cord of which the elastic modulus under a load of 2.0 cN/dtex at 100° C. is in the range of 3.5 cN/(tex·%) to 5.5 cN/(tex·%) is used as the organic fiber cord. The coating rubber covering the organic fiber cord contains one or more of natural rubber, styrene-butadiene rubber, or butadiene rubber as a rubber component. The coating rubber is formed of a rubber composition in which the content of natural rubber in the rubber component is 50 mass % or more, and 5.0 parts by mass to 9.0 parts by mass of zinc oxide is blended per 100 parts by mass of the rubber component.Type: ApplicationFiled: July 31, 2020Publication date: August 25, 2022Inventors: Makoto OZAKI, Shinya HARIKAE, Hiroki SUGIURA, Miyuki NAKAJIMA
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Patent number: 11384683Abstract: A turbocharger according to an embodiment is a turbocharger including a turbine housing for housing a turbine wheel rotary driven by an exhaust gas, a bearing housing for housing a rotational shaft on which the turbine wheel is mounted, the bearing housing being adjacent to the turbine housing, and a wastegate portion including a bypass passage and a valve body, the bypass passage allowing the exhaust gas to bypass the turbine wheel, the valve body being able to adjust a flow rate of the exhaust gas flowing through the bypass passage. In the turbine housing, a scroll passage for supplying the exhaust gas to the turbine wheel is formed by casting, at least on a radially outer side of the turbine wheel. A fastening portion for fastening the turbine housing and the bearing housing is disposed on a radially outer side of the scroll passage.Type: GrantFiled: March 5, 2018Date of Patent: July 12, 2022Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.Inventors: Tsuyoshi Kitamura, Takao Yokoyama, Kunihiro Tomikawa, Makoto Ozaki
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Publication number: 20220196030Abstract: Provided are a variable geometry turbine and a supercharger including the same that can change flow rate characteristics of a turbine in accordance with engine output with simple structure and can adjust the flow angle of a fluid flowing into a turbine impeller to any angle in the circumferential direction of the turbine impeller. The variable geometry turbine (10) includes a turbine impeller (12) configured to rotate about an axis line, a turbine housing (30) configured to accommodate the turbine impeller (12) and form a throat passage (32) and a scroll flow channel (34) on the outer circumferential side of the turbine impeller (12), the scroll flow channel(34) communicating with the throat passage (32), and a width changing mechanism in which a width change portion (52) that changes a passage width of the throat passage (32) along the circumferential direction of the turbine impeller (12) is movable in the width direction of the passage width.Type: ApplicationFiled: April 19, 2019Publication date: June 23, 2022Applicant: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.Inventors: Toyotaka YOSHIDA, Makoto OZAKI
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Publication number: 20220136464Abstract: A surge suppression device for suppressing surge in an exhaust turbine-type turbocharger includes: a high-pressure tank configured to accumulate high-pressure gas with a higher pressure than atmospheric pressure; a high-pressure gas injection line connecting the high-pressure tank and an upstream intake passage on an upstream side of a compressor of the turbocharger; an on-off valve configured to open and close the high-pressure gas injection line; and a control device configured to control the on-off valve on the basis of a relationship between a pressure ratio of the compressor of the turbocharger and an intake flow rate.Type: ApplicationFiled: March 14, 2019Publication date: May 5, 2022Applicant: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.Inventors: Yutaka FUJITA, Nobuhito OKA, Makoto OZAKI
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Patent number: 11300140Abstract: A compressor wheel includes a compressor wheel body, and a thermal insulating coating layer disposed so as to cover at least a part of a back surface of the compressor wheel body.Type: GrantFiled: December 25, 2017Date of Patent: April 12, 2022Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.Inventors: Keigo Sakamoto, Shigeyoshi Sakuma, Eigo Katou, Masahiro Nakamura, Takashi Arai, Yusuke Furuta, Makoto Ozaki
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Publication number: 20220025774Abstract: A turbine housing includes: a scroll section configured to internally define a spiral space; a cylindrical exhaust gas introduction section having an exhaust gas introduction port and configured to internally define a connection passage connecting the exhaust gas introduction port and the spiral space; a sheet metal inner scroll member disposed in the spiral space to form a first heat-shielding space between the inner scroll member and an inner surface of the scroll section and configured to internally define a spiral flow passage through which exhaust gas entering through the exhaust gas introduction port flows; and a sheet metal inlet member separate from the inner scroll member, disposed in the connection passage to form a second heat-shielding space between the inlet member and an inner surface of the exhaust gas introduction section, and configured to internally define a connection flow passage connecting the exhaust gas introduction port and the spiral flow passage.Type: ApplicationFiled: February 25, 2019Publication date: January 27, 2022Applicant: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.Inventors: Tsuyoshi KITAMURA, Makoto OZAKI
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Publication number: 20210363915Abstract: A turbocharger according to an embodiment is a turbocharger including a turbine housing for housing a turbine wheel rotary driven by an exhaust gas, a bearing housing for housing a rotational shaft on which the turbine wheel is mounted, the bearing housing being adjacent to the turbine housing, and a wastegate portion including a bypass passage and a valve body, the bypass passage allowing the exhaust gas to bypass the turbine wheel, the valve body being able to adjust a flow rate of the exhaust gas flowing through the bypass passage. In the turbine housing, a scroll passage for supplying the exhaust gas to the turbine wheel is formed by casting, at least on a radially outer side of the turbine wheel. A fastening portion for fastening the turbine housing and the bearing housing is disposed on a radially outer side of the scroll passage.Type: ApplicationFiled: March 5, 2018Publication date: November 25, 2021Applicant: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.Inventors: Tsuyoshi KITAMURA, Takao YOKOYAMA, Kunihiro TOMIKAWA, Makoto OZAKI
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Patent number: 10994758Abstract: A transportation management system for a tank container allowed to be placed on a container freight car, the tank container including a vessel capable of accommodating liquefied natural gas and a frame body which supports the vessel, the transportation management system includes a vessel management device and a transportation management device to communicate with the vessel management device. The vessel management device includes a vessel information detection unit to detect vessel information of the vessel included in the tank container, and a vessel management device-side communication unit to transmit the vessel information detected by the vessel information detection unit to the transportation management device.Type: GrantFiled: August 31, 2017Date of Patent: May 4, 2021Assignee: JAPAN PETROLEUM EXPLORATION CO., LTD.Inventors: Momoyo Yuki, Akihisa Takahashi, Masao Toyosaki, Takehito Tsuji, Makoto Ozaki
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Publication number: 20210062751Abstract: An internal combustion engine with a turbocharger according to an embodiment includes a cylinder block internally including a plurality of cylinders, a cylinder head disposed on top of the cylinder block, and internally including a plurality of exhaust flow passages through which exhaust air discharged from each of the plurality of cylinders flows, and the turbocharger including a rotational shaft, a turbine wheel, and a compressor wheel, the turbine wheel being disposed at one end of the rotational shaft, the compressor wheel being disposed at the other end of the rotational shaft. At least the turbine wheel of the turbocharger is arranged inside the cylinder head.Type: ApplicationFiled: January 29, 2018Publication date: March 4, 2021Applicant: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.Inventors: Takao YOKOYAMA, Makoto OZAKI
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Publication number: 20200378260Abstract: A mixed-flow turbine wheel includes: a plurality of rotor blades disposed on a circumferential surface of the hub at intervals in a circumferential direction and configured such that each of the plurality of rotor blades has a leading edge which includes, in a meridional view, an oblique edge portion where a distance between the leading edge and an axis of the rotational shaft decreases from a tip side toward a hub side, and a sensor detection surface having a flat shape and being applied with a marking which is detectable by an optical sensor device.Type: ApplicationFiled: August 22, 2016Publication date: December 3, 2020Applicant: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.Inventors: Koji WAKASHIMA, Makoto OZAKI, Kimio HATANO, Bumpei HASHIMOTO, Hiroshi SAITO, Takuya RIKIMARU