Patents by Inventor Nozomu Hachiya

Nozomu Hachiya 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: 11118546
    Abstract: An intake passage includes: a main intake passage provided with a throttle valve and extending from one side toward the other side along a cylinder bank; and a bypass passage provided with an EGR valve and connected to a part of the main intake passage located toward the other side with respect to the throttle valve. The bypass passage extends from a branch of the main intake passage toward the one side and then turns back and extends toward the other side. The EGR valve is located in a part of the bypass passage extending toward the other side and overlapping with a part extending from the branch to the one side.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: September 14, 2021
    Assignee: Mazda Motor Corporation
    Inventors: Ken Yoshida, Masahiko Tanisho, Nozomu Hachiya, Kouichi Shimizu, Manabu Sugimoto
  • Publication number: 20200355147
    Abstract: An intake passage includes: a main intake passage provided with a throttle valve and extending from one side toward the other side along a cylinder bank; and a bypass passage provided with an EGR valve and connected to a part of the main intake passage located toward the other side with respect to the throttle valve. The bypass passage extends from a branch of the main intake passage toward the one side and then turns back and extends toward the other side. The EGR valve is located in a part of the bypass passage extending toward the other side and overlapping with a part extending from the branch to the one side.
    Type: Application
    Filed: August 25, 2017
    Publication date: November 12, 2020
    Inventors: Ken Yoshida, Masahiko Tanisho, Nozomu Hachiya, Kouichi Shimizu, Manabu Sugimoto
  • Publication number: 20200347806
    Abstract: Disclosed is an engine which comprises: an engine body comprising a cylinder head and a cylinder block; an inlet duct attached to the engine body; and a fuel system component disposed between the engine body and the inlet duct, wherein the inlet duct is disposed on a vehicle forward side of the engine body when mounted to a vehicle, and wherein the inlet duct has: a fuel system component-corresponding portion located in a zone overlapping the fuel system component when viewed from the vehicle forward side, and a region located adjacent to the fuel system component-corresponding portion and having a lower rigidity than the fuel system component-corresponding portion.
    Type: Application
    Filed: December 25, 2018
    Publication date: November 5, 2020
    Inventors: Masahiko TANISHO, Nozomu HACHIYA, Ken YOSHIDA, Masayuki FURUTANI, Masahiro NISHIOKA, Jun NISHIKAWA
  • Publication number: 20200063641
    Abstract: An intake device for a multi-cylinder engine includes an intake manifold, an intercooler, and a heat insulation member. The intake manifold has an intercooler housing that is a cylindrical body formed from a resin material and internally accommodates the intercooler; and an intake air distributor that is a cylindrical body formed of a metal material and has one opening connected to one opening of the intercooler housing, the intake air distributor distributing an intake air. The heat insulation member is interposed between another opening of the intake air distributor and the cylinder head in the multi-cylinder engine.
    Type: Application
    Filed: October 25, 2017
    Publication date: February 27, 2020
    Inventors: Fusatoshi Tanaka, Takao Kadoishi, Nozomu Hachiya
  • Patent number: 9528427
    Abstract: An intake system for an engine is provided. The system includes a chamber room formed in an intermediate section of an intake passage, an intercooler disposed inside the chamber room, an intake air inlet chamber formed in a part of the chamber room upstream of the intercooler, an introducing portion for introducing intake air into the intake air inlet chamber, and a baffle plate dividing the intake air inlet chamber into an upstream space communicating with the introducing portion and a downstream space communicating to the introducing portion via the upstream space. When the engine is in a low engine load operation, the intake air mainly flows through the upstream space to an intercooler side via the baffle plate, and when the engine is in a high engine load operation, the intake air flows through the upstream and downstream spaces to the intercooler side via the baffle plate.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: December 27, 2016
    Assignee: Mazda Motor Corporation
    Inventors: Tatsuro Nakasugi, Fusatoshi Tanaka, Takao Kadoishi, Nozomu Hachiya
  • Publication number: 20150184581
    Abstract: An intake system for an engine is provided. The system includes a chamber room formed in an intermediate section of an intake passage, an intercooler disposed inside the chamber room, an intake air inlet chamber formed in a part of the chamber room upstream of the intercooler, an introducing portion for introducing intake air into the intake air inlet chamber, and a baffle plate dividing the intake air inlet chamber into an upstream space communicating with the introducing portion and a downstream space communicating to the introducing portion via the upstream space. When the engine is in a low engine load operation, the intake air mainly flows through the upstream space to an intercooler side via the baffle plate, and when the engine is in a high engine load operation, the intake air flows through the upstream and downstream spaces to the intercooler side via the baffle plate.
    Type: Application
    Filed: December 5, 2014
    Publication date: July 2, 2015
    Inventors: Tatsuro Nakasugi, Fusatoshi Tanaka, Takao Kadoishi, Nozomu Hachiya
  • Patent number: 8671919
    Abstract: An intake device of an engine comprises an intake manifold of a four-cylinder inline engine and a water-cooling type of intercooler. The intake manifold includes a downstream branch pipe portion connecting to cylinders, a chamber portion connecting to the downstream branch pipe portion, and an upstream intake pipe portion connecting to the chamber portion. A rectangular opening portion having a vertically-long shape is formed at the upstream intake pipe portion. The intercooler includes an intercooler body portion having a pair of faces which has the widest face-area and faces to each other in an engine width direction. The intercooler body portion is installed in the chamber portion, by being inserted through the rectangular opening portion, so as to divide an inside of the chamber portion into two parts in the engine width direction thereby.
    Type: Grant
    Filed: January 9, 2013
    Date of Patent: March 18, 2014
    Assignee: Mazda Motor Corporation
    Inventors: Tatsuro Nakasugi, Fusatoshi Tanaka, Takao Kadoishi, Nozomu Hachiya