Patents by Inventor Hidesaku Ebesu
Hidesaku Ebesu 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: 11047350Abstract: A bottom surface of a surge tank has such a shape that, in a vehicle-mounted state, the bottom surface is positioned below a lower surface at an upstream end of each of a plurality of independent passages and comes closer to the lower surface at the upstream end of each of the plurality of independent passages in a vertical direction farther away from a connected portion between the surge tank and a third passage in a cylinder array direction.Type: GrantFiled: February 20, 2018Date of Patent: June 29, 2021Assignee: Mazda Motor CorporationInventors: Toshihiko Hirata, Hidesaku Ebesu, Ryotaro Nishida
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Patent number: 10982590Abstract: The present disclosure provides sufficient support rigidity of a supercharger and an intercooler, while reducing an increase in the overall height of an engine. The supercharger extends along a cylinder bank at a side of a surge tank, and is fixed to an intake manifold. The intercooler is located below the supercharger. A case of the intercooler is connected to a discharge port of the supercharger and an intake air introduction pipe of the intake manifold.Type: GrantFiled: August 25, 2017Date of Patent: April 20, 2021Assignee: Mazda Motor CorporationInventors: Ken Yoshida, Ryotaro Nishida, Hidesaku Ebesu, Shuhei Tsujita, Hisayuki Yamane, Masafumi Nakano, Taketoshi Yamauchi
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Patent number: 10920657Abstract: An air intake passage (30) has a third passage (37) that connects an intercooler (36) and a bottom portion of a surge tank (38) such that the intercooler (36) is positioned below the surge tank (38). A pair of wall portions (71, 72) configured to catch moisture is formed in a section from an upstream end portion of the third passage (37) to a connected portion between said third passage (37) and the surge tank (38).Type: GrantFiled: February 20, 2018Date of Patent: February 16, 2021Assignee: MAZDA MOTOR CORPORATIONInventors: Toshihiko Hirata, Hidesaku Ebesu, Ryotaro Nishida
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Patent number: 10900411Abstract: The present disclosure aims to improve circulation of intake air and distribution of bypass intake air to cylinders, while reducing an increase in the overall height of an engine. A supercharger extends along a cylinder bank at a side of a surge tank extending along the cylinder bank. A bypass pipe branching off from an upstream intake pipe configured to introduce the intake air into the supercharger extends along the cylinder bank above the supercharger. A downstream side intake pipe configured to guide the intake air from the supercharger to the surge tank extends downward from the supercharger. The downstream intake pipe is, in a U-shape as viewed along the cylinder bank, connected to the surge tank.Type: GrantFiled: August 25, 2017Date of Patent: January 26, 2021Assignee: Mazda Motor CorporationInventors: Ken Yoshida, Ryotaro Nishida, Hidesaku Ebesu, Mitsunori Wasada, Mitsutaka Yamaya, Hisayuki Yamane, Yoshihiro Hamazume, Shuhei Tsujita, Hirofumi Shinohara, Eiji Takano, Tatsuya Koga, Tsukasa Hoshino, Masafumi Nakano, Kouichi Shimizu, Jiro Kato, Taketoshi Yamauchi
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Publication number: 20200370518Abstract: A bottom surface of a surge tank has such a shape that, in a vehicle-mounted state, the bottom surface is positioned below a lower surface at an upstream end of each of a plurality of independent passages and comes closer to the lower surface at the upstream end of each of the plurality of independent passages in a vertical direction farther away from a connected portion between the surge tank and a third passage in a cylinder array direction.Type: ApplicationFiled: February 20, 2018Publication date: November 26, 2020Inventors: Toshihiko Hirata, Hidesaku Ebesu, Ryotaro Nishida
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Publication number: 20200370467Abstract: The present disclosure aims to improve circulation of intake air and distribution of bypass intake air to cylinders, while reducing an increase in the overall height of an engine. A supercharger extends along a cylinder bank at a side of a surge tank extending along the cylinder bank. A bypass pipe branching off from an upstream intake pipe configured to introduce the intake air into the supercharger extends along the cylinder bank above the supercharger. A downstream side intake pipe configured to guide the intake air from the supercharger to the surge tank extends downward from the supercharger. The downstream intake pipe is, in a U-shape as viewed along the cylinder bank, connected to the surge tank.Type: ApplicationFiled: August 25, 2017Publication date: November 26, 2020Inventors: Ken Yoshida, Ryotaro Nishida, Hidesaku Ebesu, Mitsunori Wasada, Mitsutaka Yamaya, Hisayuki Yamane, Yoshihiro Hamazume, Shuhei Tsujita, Hirofumi Shinohara, Eiji Takano, Tatsuya Koga, Tsukasa Hoshino, Masafumi Nakano, Kouichi Shimizu, Jiro Kato, Taketoshi Yamauchi
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Patent number: 10788001Abstract: The present disclosure aims to stabilize, in an engine with a supercharger, a detection result of an intake air temperature sensor interposed between the supercharger and an intercooler. A gas outlet of a supercharger and a gas inlet of an intercooler are connected together via a second passage. The second passage includes, in its middle position, a narrow region with a smaller cross-sectional area than the part of the second passage extending from an upstream end of the second passage to the middle position. The narrow region is provided with the intake air temperature sensor configured to detect the gas temperature in the narrow region.Type: GrantFiled: May 22, 2018Date of Patent: September 29, 2020Assignee: Mazda Motor CorporationInventors: Jiro Kato, Mitsunori Wasada, Hidesaku Ebesu, Toshihiko Hirata, Tatsuya Koga, Shuhei Tsujita
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Patent number: 10774793Abstract: Substances in external EGR gas are smoothly guided to a combustion chamber. An intake passage includes: a main intake passage including intake ports and communicating with a combustion chamber and having a supercharger interposed in the main intake passage; and a bypass passage branching off from the main intake passage upstream of the supercharger, and connected downstream of the supercharger; a flow rage adjustment valve changing a cross-sectional flow area of the bypass passage. The bypass passage is provided above the main intake passage, and includes an upper passage to which an EGR passage is connected.Type: GrantFiled: August 14, 2018Date of Patent: September 15, 2020Assignee: MAZDA MOTOR CORPORATIONInventors: Hidesaku Ebesu, Kouichi Shimizu, Ryotaro Nishida
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Publication number: 20200182134Abstract: The present disclosure provides sufficient support rigidity of a supercharger and an intercooler, while reducing an increase in the overall height of an engine. The supercharger extends along a cylinder bank at a side of a surge tank, and is fixed to an intake manifold. The intercooler is located below the supercharger. A case of the intercooler is connected to a discharge port of the supercharger and an intake air introduction pipe of the intake manifold.Type: ApplicationFiled: August 25, 2017Publication date: June 11, 2020Inventors: Ken Yoshida, Ryotaro Nishida, Hidesaku Ebesu, Shuhei Tsujita, Hisayuki Yamane, Masafumi Nakano, Taketoshi Yamauchi
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Publication number: 20200049110Abstract: Intake ports include a second port configured such that a flow rate of flowing gas is adjusted via a swirl control valve. When a surge tank is viewed in a cylinder axis direction, first and second branched passages are connected with a space being interposed therebetween in a cylinder array direction, and are connected to the surge tank on extension lines, each of which extends from an upstream end portion of an independent passage connected to the second port to an opposite side of each cylinder.Type: ApplicationFiled: February 20, 2018Publication date: February 13, 2020Inventors: Jiro Kato, Mitsunori Wasada, Masayoshi Higashio, Kensuke Ashikaga, Kazuhiro Nakamura, Yuji Kojima, Hidesaku Ebesu, Tatsuya Koga, Toshihiko Hirata
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Publication number: 20200040854Abstract: An air intake passage (30) has a third passage (37) that connects an intercooler (36) and a bottom portion of a surge tank (38) such that the intercooler (36) is positioned below the surge tank (38). A pair of wall portions (71, 72) configured to catch moisture is formed in a section from an upstream end portion of the third passage (37) to a connected portion between said third passage (37) and the surge tank (38).Type: ApplicationFiled: February 20, 2018Publication date: February 6, 2020Applicant: MAZDA MOTOR CORPORATIONInventors: Toshihiko HIRATA, Hidesaku EBESU, Ryotaro NISHIDA
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Patent number: 10323614Abstract: A supercharged engine is provided, which includes an engine body having cylinders, an intake passage disposed outside the engine body and connected to the cylinders via intake ports, a supercharger provided in the intake passage and spaced apart from an intake-side side surface of the engine body, the intake-side side surface being connected to the intake passage, and a fuel pump disposed on the intake-side side surface. A portion of the intake passage constitutes an intervening part located between the supercharger and the engine body. The intervening part overlaps with the fuel pump in one of vertical and lateral directions of the engine body.Type: GrantFiled: June 8, 2017Date of Patent: June 18, 2019Assignee: Mazda Motor CorporationInventors: Hidesaku Ebesu, Ryotaro Nishida
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Publication number: 20190063376Abstract: Substances in external EGR gas are smoothly guided to a combustion chamber. An intake passage includes: a main intake passage including intake ports and communicating with a combustion chamber and having a supercharger interposed in the main intake passage; and a bypass passage branching off from the main intake passage upstream of the supercharger, and connected downstream of the supercharger; a flow rage adjustment valve changing a cross-sectional flow area of the bypass passage. The bypass passage is provided above the main intake passage, and includes an upper passage to which an EGR passage is connected.Type: ApplicationFiled: August 14, 2018Publication date: February 28, 2019Applicant: MAZDA MOTOR CORPORATIONInventors: Hidesaku EBESU, Kouichi SHIMIZU, Ryotaro NISHIDA
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Publication number: 20180340496Abstract: The present disclosure aims to stabilize, in an engine with a supercharger, a detection result of an intake air temperature sensor interposed between the supercharger and an intercooler. A gas outlet of a supercharger and a gas inlet of an intercooler are connected together via a second passage. The second passage includes, in its middle position, a narrow region with a smaller cross-sectional area than the part of the second passage extending from an upstream end of the second passage to the middle position. The narrow region is provided with the intake air temperature sensor configured to detect the gas temperature in the narrow region.Type: ApplicationFiled: May 22, 2018Publication date: November 29, 2018Inventors: Jiro Kato, Mitsunori Wasada, Hidesaku Ebesu, Toshihiko Hirata, Tatsuya Koga, Shuhei Tsujita
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Publication number: 20180038274Abstract: An accessory mounting structure for an engine includes an engine body, and a transmission disposed on an end of the engine body in the cylinder array direction and to which output of the engine is transmitted via a crankshaft of the engine body. When the output side of the crankshaft with respect to the transmission in the cylinder array direction is defined as a rear side, and the side of the crankshaft opposite to the rear side is defined as a front side, a fuel pump configured to feed fuel to an injector, and a starter configured to rotate the crankshaft at an engine start time are disposed on a rear end portion of an intake manifold mounting surface of the engine body. When the engine is viewed from the cylinder array direction, the starter projects outwardly with respect to the fuel pump in the engine width direction.Type: ApplicationFiled: April 21, 2016Publication date: February 8, 2018Applicant: MAZDA MOTOR CORPORATIONInventors: Hidesaku EBESU, Ryotaro NISHIDA
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Publication number: 20170363051Abstract: A supercharged engine is provided, which includes an engine body having cylinders, an intake passage disposed outside the engine body and connected to the cylinders via intake ports, a supercharger provided in the intake passage and spaced apart from an intake-side side surface of the engine body, the intake-side side surface being connected to the intake passage, and a fuel pump disposed on the intake-side side surface. A portion of the intake passage constitutes an intervening part located between the supercharger and the engine body. The intervening part overlaps with the fuel pump in one of vertical and lateral directions of the engine body.Type: ApplicationFiled: June 8, 2017Publication date: December 21, 2017Inventors: Hidesaku Ebesu, Ryotaro Nishida
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Patent number: 7997250Abstract: Disclosed is an upper structure of an engine having three or more cylinders arranged in a row. A first one of a pair of adjacent cylinders among at least three of the cylinders serially arranged in a cylinder row direction is provided with a second spark plug at a position on an opposite side of a second one of the pair of adjacent cylinders, and the second one of the pair of adjacent cylinders is provided with a second spark plug at a position on an opposite side of the first one of the pair of adjacent cylinders. The present invention can provide enhanced flexibility in design of a head cover of the engine.Type: GrantFiled: November 6, 2008Date of Patent: August 16, 2011Assignee: Mazda Motor CorporationInventors: Yasushi Nakahara, Hidesaku Ebesu, Tsuyoshi Yamamoto, Keiichi Tateishi
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Publication number: 20090114174Abstract: Disclosed is an upper structure of an engine having three or more cylinders arranged in a row. A first one of a pair of adjacent cylinders among at least three of the cylinders serially arranged in a cylinder row direction is provided with a second spark plug at a position on an opposite side of a second one of the pair of adjacent cylinders, and the second one of the pair of adjacent cylinders is provided with a second spark plug at a position on an opposite side of the first one of the pair of adjacent cylinders. The present invention can provide enhanced flexibility in design of a head cover of the engine.Type: ApplicationFiled: November 6, 2008Publication date: May 7, 2009Applicant: MAZDA MOTOR CORPORATIONInventors: Yasushi NAKAHARA, Hidesaku EBESU, Tsuyoshi YAMAMOTO, Keiichi TATEISHI
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Patent number: 6470840Abstract: A cylinder head includes a carrier member 50 integrally formed with a vertical wall portion 53 for supporting a camshaft 15, 16, a tappet guide 54 for containing a tappet 24 and a tappet-lubricating oil receiving portion 51 slanted around the tappet guide 54. An operation-oil supply passage 203, 209, 210 extends in the longitudinal direction of the carrier member 50 inside the tappet guide 54.Type: GrantFiled: March 13, 2001Date of Patent: October 29, 2002Assignee: Mazda Motor CorporationInventors: Hidesaku Ebesu, Hiroyuki Oda, Kouji Asanoumi, Hiroaki Deguchi, Setsuo Harada, Hirokazu Matsuura
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Publication number: 20010035142Abstract: A cylinder head includes a carrier member 50 integrally formed with a vertical wall portion 53 for supporting a camshaft 15, 16, a tappet guide 54 for containing a tappet 24 and a tappet-lubricating oil receiving portion 51 slanted around the tappet guide 54. An operation-oil supply passage 203, 209, 210 extends in the longitudinal direction of the carrier member 50 inside the tappet guide 54.Type: ApplicationFiled: March 13, 2001Publication date: November 1, 2001Inventors: Hidesaku Ebesu, Hiroyuki Oda, Kouji Asanoumi, Hiroaki Deguchi, Setsuo Harada, Hirokazu Matsuura