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公开(公告)号：US20220228508A1
公开(公告)日：2022-07-21
申请号：US17456028
申请日：2021-11-22
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Masahiko ASANO
Abstract: An exhaust passage including a protrusion which is less likely to receive heat from a gas and hence has high heat-resistance reliability is provided. An exhaust passage includes an exhaust pipe, and a protrusion continuously formed over a range of a part of an inner surface of the exhaust pipe in a circumferential direction thereof, the protrusion being inclined toward a direction in which the exhaust pipe extends, and being configured in such a manner that a cross-sectional area of the exhaust pipe becomes smaller toward a downstream side thereof, in which the exhaust passage further includes a convex part on an inner surface of the protrusion.
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Patent Agency Ranking
公开(公告)号：US20210245221A1
公开(公告)日：2021-08-12
申请号：US17140201
申请日：2021-01-04
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Masahiko ASANO , Yoshihiko UKAI
Abstract: A method for manufacturing a pipe includes: press-forming a plate member into a U shape; and press-forming the plate member formed into the U shape into an O shape. The pipe includes a pipe body and a tapered part tilted radially inward and protruding from one end of the pipe body. Before the plate member is press-formed into the U shape, a boundary between a portion of the plate member corresponding to the pipe body and a portion of the plate member corresponding to the tapered part is pressed from a surface of the plate member corresponding to an inner peripheral surface of the pipe to bend the portion of the plate member corresponding to the tapered part toward the surface of the plate member corresponding to the inner peripheral surface of the pipe.
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公开(公告)号：US20170037807A1
公开(公告)日：2017-02-09
申请号：US15151918
申请日：2016-05-11
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Takatoshi AKASE , Masahiko ASANO
CPC classification number: F01P7/16 , F02D35/023 , F02D35/025 , F02D41/0007 , F02D41/005 , F02D41/0077 , F02D41/34 , F02D2200/021 , F02P5/04 , F02P5/152 , Y02T10/144 , Y02T10/44 , Y02T10/46 , Y02T10/47
Abstract: A controller for an internal combustion engine includes a combustion pressure sensor and a temperature calculator. The combustion pressure sensor has a pressure receiver, a semiconductor device, and a detection circuit. The pressure receiver is arranged in a combustion chamber. The internal pressure applied to the pressure receiver is transmitted to the semiconductor device, and the resistance value of the semiconductor device is changed in accordance with own temperature and own deformation caused by the internal pressure. The detection circuit outputs power in accordance with the pressure applied to the pressure receiver and the temperature of the semiconductor device. The temperature calculator calculates a temperature of the combustion chamber based on an output of the detection circuit at the time when a combustion pressure is not acting on the pressure receiver.
Abstract translation: 用于内燃机的控制器包括燃烧压力传感器和温度计算器。 燃烧压力传感器具有压力接收器，半导体器件和检测电路。 压力容器设置在燃烧室中。 施加到压力接收器的内部压力被传递到半导体器件，并且半导体器件的电阻值根据自身温度和由内部压力引起的自身变形而改变。 检测电路根据施加到压力接收器的压力和半导体器件的温度输出功率。 温度计算器基于在不对作用在压力接收器上的燃烧压力作用时的检测电路的输出来计算燃烧室的温度。
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公开(公告)号：US20200325846A1
公开(公告)日：2020-10-15
申请号：US16837069
申请日：2020-04-01
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Masahiko ASANO , Noboru TAKAGI , Naoto HISAMINATO , Minoru OKIMURA , Shinya WAKABAYASHI
Abstract: A cylinder head includes an exhaust port through which exhaust gas discharged out of a combustion chamber of an internal combustion engine passes. The cylinder head includes a first fin and a second fin projecting from an inner wall of the exhaust port and extending in a flow direction of the exhaust gas. The cylinder head includes a first projection projecting from the inner wall of the exhaust port and extending in a direction intersecting the first fin. The cylinder head also includes a second projection projecting from the inner wall of the exhaust port and extending in a direction intersecting the second fin.
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公开(公告)号：US20180313250A1
公开(公告)日：2018-11-01
申请号：US15949318
申请日：2018-04-10
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Masao NAKAYAMA , Masahiko ASANO
CPC classification number: F02F1/40 , F01P3/16 , F02F1/14 , F02F2001/104
Abstract: The cooling structure for internal combustion engine includes: a cylinder head including a fixing part for fuel injection valve of a cylinder-direct-injection type; a cylinder block; and a water jacket spacer. A surface on a cylinder block side of the cylinder head is recessed so as to be sectioned into a recessed coolant passage communicating with a block-side water jacket formed in the cylinder block. The recessed coolant passage surrounds periphery of the fixing part for the fuel injection valve. An edge on a cylinder head side of the water jacket spacer that is disposed in the block-side water jacket is provided with projection projecting toward the recessed coolant passage so as to direct at least part of the coolant flowing inside the block-side water jacket toward the recessed coolant passage.
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公开(公告)号：US20180274477A1
公开(公告)日：2018-09-27
申请号：US15921895
申请日：2018-03-15
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Masao NAKAYAMA , Masahiko ASANO
CPC classification number: F02F1/40 , F01P3/02 , F01P2003/024 , F02F1/242 , F02F1/4285
Abstract: A cylinder head in an internal combustion engine includes a cylinder head main body in which a plurality of combustion chambers is arranged and a pipe member that extends along a direction in which the combustion chambers are arranged, through which a refrigerant flows, and which is embedded in the cylinder head main body. The pipe member is provided with a curved portion that is curved and the curved portion is provided with a throttle region in which a sectional area is partially reduced.
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