Patents Examined by Yi-Kai Wang
  • Patent number: 11028788
    Abstract: A control device for an engine, includes: an air intake controller controlling a quantity of intake air to be supplied to a catalyst provided in an exhaust passage by controlling an open degree of a throttle valve provided in an intake passage; a fuel controller controlling fuel supply to the engine, wherein the fuel controller stops the fuel supply and the air intake controller performs a first control supplying intake air to the catalyst by opening the throttle valve, for a predetermined period of time after an end of the first control, the fuel controller stops the fuel supply, and the air intake controller performs a second control decreasing the open degree of the throttle valve to an open degree smaller than that during the first control, and after the predetermined period of time passes, the fuel controller starts a third control supplying the fuel to the engine.
    Type: Grant
    Filed: March 5, 2020
    Date of Patent: June 8, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Ryohei Sugamata, Takahiro Nishigaki
  • Patent number: 11022027
    Abstract: In an internal combustion engine provided with a combustion chamber defined by an inner circumferential surface of a cylinder, an end surface of a cylinder head facing the cylinder, a crown surface of a piston, an inner surface of an intake valve, and an inner surface of an exhaust valve, for the purpose of improving the anti-knocking performance of the engine, the inner circumferential surface of the cylinder, the end surface of the cylinder head, the crown surface of the piston, the inner surface of the intake valve and the inner surface of the exhaust valve include a mirror surface region formed as a mirror surface having an arithmetic average roughness of 0.3 ?m or less, and a rough surface region formed as a rough surface having an arithmetic average roughness of 0.3 ?m or more.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: June 1, 2021
    Assignee: HONDA MOTOR CO., LTD.
    Inventor: Hisao Uozumi
  • Patent number: 11015676
    Abstract: To provide a vehicle that includes a balancer mechanism for reducing vibration of the engine and can leave a space margin for increasing the fuel tank in size and/or arranging equipment or components at the rear of the cylinder and above the crankcase. A vehicle includes: an engine mounted on a body frame. The engine comprises a crankcase with a ceiling wall, a crankshaft provided in the crankcase, and a balancer mechanism for reducing vibration of the engine by power transmitted from the crankshaft. The balancer mechanism comprises an idler gear disposed behind the crankshaft and rotated by power transmitted from the crankshaft, and a first balancer disposed behind the idler gear and rotated by power transmitted from the idler gear. The idler gear and the first balancer are disposed along the ceiling wall.
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: May 25, 2021
    Inventor: Masaki Mori
  • Patent number: 11015552
    Abstract: An evaporated fuel processing apparatus includes a canister to collect vapor generated in a fuel tank, a purge passage to purge vapor into an intake passage from the canister, a purge pump provided in the purge passage, a first trifurcated valve in the purge passage between an exhaust port of the purge pump and an outflow port of the purge passage, a second trifurcated valve provided in the purge passage between an inflow port of the purge passage and an intake port of the purge pump, a first bypass passage between the purge passage upstream of the second trifurcated valve and the first trifurcated valve, and a second bypass passage between the purge passage downstream of the first trifurcated valve and the second trifurcated valve. Passages for the vapor and others are switched by switching the first trifurcated valve and the second trifurcated valve during operation of the purge pump.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: May 25, 2021
    Assignee: AISAN KOGYO KABUSHIKI KAISHA
    Inventors: Yoshihiko Honda, Hironori Suzuki, Hiroyuki Takahashi
  • Patent number: 11015501
    Abstract: There is provided a breather chamber structure. An inner wall partitions a breather space surrounded by outer walls into a plurality of chambers including a first chamber, a second chamber, and a third chamber. An inlet allows the gas to flow into the first chamber. A first communication path communicates between the first chamber and the second chamber. A second communication path communicates between the second chamber and the third chamber. An outlet allows the gas in the third chamber to flow out of the breather space. An oil discharge port is configured to return oil separated from gas in the breather space to an oil reservoir. The third chamber has a volume equal to or greater than half of a volume of the breather space. The first chamber has a volume larger than a volume of any of the chambers except for the first and third chambers.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: May 25, 2021
    Assignee: SUZUKI MOTOR CORPORATION
    Inventors: Masatoshi Kimpara, Saki Nozue
  • Patent number: 11008988
    Abstract: An electronic control device has a compact abnormality detection circuit that does not require a complicated circuit, and is capable of suppressing a cost increase when being applied a direct injection injector drive circuit and other drive circuits. A current detection circuit includes a current detection resistor, a differential amplifier, and a current detection unit. The current detected is supplied to the abnormality/normality determination unit. A combined resistance value of a diagnostic current drive circuit and the current detection resistor is higher than an injector drive circuit. A fuel injection signal is input to a logic circuit, and a fuel cut signal is input to a different terminal of the logic circuit. The logic circuit's output terminal is connected to the injector drive circuit's gate. The output signal from a fuel injection signal output unit is supplied via a switch to the diagnostic current drive circuit's gate.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: May 18, 2021
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Yasushi Sugiyama, Atsushi Arata, Yasuo Shima, Masahiro Doi
  • Patent number: 10989273
    Abstract: The invention relates to a power unit, in particular for a hybrid vehicle, comprising a two-cylinder reciprocating piston engine comprising two pistons guided in two cylinders in tandem arrangement, and two counter-rotating crankshafts connected to the pistons by connecting rods, a generator which is rotatable in the same direction as the first crankshaft and in the opposite direction to the second crankshaft, and a balancer shaft which is rotatable in the same direction as the second crankshaft and in the opposite direction to the first crankshaft. The generator is operatively connected directly to the first crankshaft by a first traction mechanism and the balancer shaft is operatively connected directly to the second crankshaft by a second traction mechanism. The balancer shaft and/or the second crankshaft support(s) a flywheel mass element. The invention further relates to a vehicle, in particular a hybrid vehicle, having such a power unit.
    Type: Grant
    Filed: November 14, 2018
    Date of Patent: April 27, 2021
    Assignee: OBRIST TECHNOLOGIES GMBH
    Inventors: Frank Obrist, Tsuneo Konno, Oliver Obrist
  • Patent number: 10989137
    Abstract: An exhaust port liner, which may include a superalloy and may be manufactured by an additive manufacturing process, includes a monolithic structure including an outlet disposed an angle relative to an inlet, and a sidewall defining a cavity to provide enhanced thermal performance in reciprocating internal combustion engines. A cylinder head of an internal combustion engine may include a cylinder head frame, and the exhaust port liner may be disposed proximate the frame inner mounting surface, with an outer surface of the exhaust port liner conforming to an inner mounting surface of the cylinder head frame.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: April 27, 2021
    Assignee: CARTRIDGE LIMITED
    Inventors: Joachim Kloss, Andreas Steinbronn
  • Patent number: 10989099
    Abstract: A pump group for a cooling system of an engine of a vehicle, of the dual type is provided. The pump group includes an impeller mounted on a shaft commandable in rotation by an electric drive and a mechanical drive. The mechanical drive includes a rotating member commandable in rotation by mechanical movement devices in the vehicle, a rotary drum operatively connected to the shaft, a centrifugal clutch device including a central body integrally attached to the rotating member and a plurality of engagement elements movably fixed on the central body suitable to translate in a radial direction with respect to the axis (X-X) to engage the rotary drum.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: April 27, 2021
    Assignee: Industrie Saleri Italo S.p.A.
    Inventors: Alfonso Surace, Marco Pedersoli
  • Patent number: 10982617
    Abstract: A vehicle, engine controller and method for coordinating direct split injection of two or more pulses of fuel during a working cycle of a reactivated cylinder which was deactivated in a previous working cycle is described. By using split injection for the reactivated cylinder, the particulate matter and particulate number (“PM/PN”) generated by the reactivated cylinder is reduced.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: April 20, 2021
    Assignee: Tula Technology, Inc.
    Inventors: Xi Luo, Jerry F. Fuschetto, Xin Yuan, Matthew A. Younkins
  • Patent number: 10975792
    Abstract: Provided are a novel exhaust pipe temperature estimation device and a sensor heater control apparatus for an exhaust gas sensor using the same that accurately estimates an estimation exhaust pipe temperature when an internal combustion engine is stopped and restarted in response to a change of an environmental condition of the internal combustion engine and controls an operation of a sensor heater based on the estimated estimation exhaust pipe temperature.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: April 13, 2021
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventor: Kenji Takada
  • Patent number: 10975720
    Abstract: The invention relates to a balancing system of an aircraft turbomachine comprising a first annular row of first mounting ports for mounting balancing members, and a second annular row of second mounting ports for mounting balancing members which is axially offset from the first annular row, the number and angular positions of the first mounting ports being identical to the number and angular positions of the second mounting ports.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: April 13, 2021
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventors: Nadège Pauline Audrey Hugon, Thomas Giraudeau, Jean-Marc Claude Perrollaz, Baptiste René Roger Batonnet, Romain Nicolas Lagarde
  • Patent number: 10975756
    Abstract: A thermostat for an engine cooling system is arranged between an engine and a radiator. The thermostat may include: a housing having a coolant inlet through which inflow coolant flows in from the engine and a radiator side outlet; a main valve provided in the housing and coupled to one side of a wax to open and close the radiator side outlet by a change in volume of the wax; and a heating unit coupled to the other side of the wax to supply heat to the wax.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: April 13, 2021
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventor: Hyo-Jo Lee
  • Patent number: 10968791
    Abstract: A control device for an onboard engine is configured to control the oil discharge pressure of an oil pump and execute, when determining that there may be an abnormality in the control of the oil discharge pressure, a change process that increases the target discharge pressure to a value that is greater than that before it is determined that there may be an abnormality in the control. When a discharge pressure sensor value in a situation in which the discharge pressure is being controlled based on the target discharge pressure increased through execution of the change process does not become greater than or equal to a discharge pressure threshold, the control device sets an upper limit for the engine rotation speed and increases the upper limit as the discharge pressure sensor value increases.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: April 6, 2021
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Takayuki Hosogi, Hisayuki Ito, Noboru Takagi, Kazuyoshi Shimatani, Takahiko Aoyagi, Masahiro Yoshida, Yoshinobu Uchiyama, Toshiki Sato, Hirotaka Watanabe
  • Patent number: 10968859
    Abstract: Control is performed so as to occur SPCCI combustion in which, after an air-fuel mixture in a first area of a combustion chamber that includes an electrode portion of an ignition device is burned by receiving ignition energy, an air-fuel mixture formed in a second area located on an outer periphery of the first area is self-ignited. Control is also performed such that, in a high load operation region of an SPCCI combustion execution region, an air-fuel ratio in the entire combustion chamber becomes richer than a stoichiometric air-fuel ratio and that an air-fuel ratio of the air-fuel mixture in the first area becomes leaner than an air-fuel ratio of the air-fuel mixture in the second area.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: April 6, 2021
    Assignee: Mazda Motor Corporation
    Inventors: Noriyuki Ota, Ryohei Ono
  • Patent number: 10968846
    Abstract: Methods and systems are provided for reducing engine stall incidence during canister purging. A fuel vapor canister is purged at a higher purge ramp rate to an engine with one or more cylinders selectively deactivated. In response to an indication of potential or partial engine stall, the deactivated cylinders are reactivated and the canister purge ramp rate is lowered.
    Type: Grant
    Filed: February 11, 2019
    Date of Patent: April 6, 2021
    Assignee: Ford Global Technologies, LLC
    Inventor: Aed Dudar
  • Patent number: 10962086
    Abstract: A viscosity-torsional vibration damper or absorber for a crankshaft of a combustion engine includes an annular damping or absorbing arrangement which can be fastened to the crankshaft. The damping or absorbing arrangement is fastened in an outer diameter region to a holding device which, on the other hand, can be fastened to the crankshaft and can be sprung in the axial direction of the crankshaft, but is inherently rigid radially with respect to the crankshaft.
    Type: Grant
    Filed: August 6, 2018
    Date of Patent: March 30, 2021
    Assignee: Hasse & Wrede GmbH
    Inventors: Florian Knopf, Michael Steidl
  • Patent number: 10954871
    Abstract: A controller of an internal combustion engine includes a sensor, a control unit controlling the engine, and a detector obtaining detection data from the sensor and transmitting the data to the control unit. The detector includes a detection data obtainer obtaining the detection data and storing the detection data in a storage upon having an input of a trigger signal, and a detection data transmitter transmitting the detection data stored in the storage to the control unit, and the control unit includes a trigger output unit outputting the trigger signal at a certain rotation angle timing of the internal combustion engine, and a detection data receiver obtaining the detection data from the detector.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: March 23, 2021
    Assignee: DENSO CORPORATION
    Inventor: Makoto Tashiro
  • Patent number: 10954900
    Abstract: An elastic connecting support for arrangement between a combustion engine and an air filter of a handheld work apparatus is disclosed. The connecting support has a first channel for largely fuel-free air and a second channel for a fuel/air mixture. The connecting support is realized as a single piece, and has, on a first side, an engine connecting flange, at which the first and second channel end, for connection to the combustion engine. The first channel has a first peripheral wall and the second channel has a second peripheral wall. The first peripheral wall and the second peripheral wall are arranged at a distance in relation to each other in a longitudinal section of the connecting support. The channels extend from the first side to a second side of the connecting support. On the second side, the first channel and the second channel end at a common connecting flange.
    Type: Grant
    Filed: August 15, 2019
    Date of Patent: March 23, 2021
    Assignee: Andreas Stihl AG & Co. KG
    Inventor: Daniel Martin
  • Patent number: 10946359
    Abstract: A fuel reformation system includes a fuel delivery system that supports fuel, an oxidizer delivery system that supports an oxidizer, a mixer/vaporizer system in fluid communication with the fuel delivery system and the oxidizer delivery system, and a fuel processing reactor system. The mixer/vaporizer system receives the oxidizer from the oxidizer delivery system and the fuel from the fuel delivery system to mix and vaporize the oxidizer and fuel into a first effluent. The fuel processing reactor system receives the first effluent and reacts with the first effluent to generate a second effluent in the form of hot syngas for selective injection into a high speed, air-breathing propulsion system.
    Type: Grant
    Filed: January 9, 2019
    Date of Patent: March 16, 2021
    Assignee: INNOVEERING, LLC
    Inventors: Dean Modroukas, Robert Bakos