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公开(公告)号：US20140238326A1
公开(公告)日：2014-08-28
申请号：US14184346
申请日：2014-02-19
Applicant: Mazda Motor Corporation
Inventor： Takashi Kashiwabara , Akihiro Noda
CPC classification number: F01L1/047 , F01L13/0036 , F01L2001/0473 , F01L2013/0052 , F01L2820/031
Abstract: A valve operating device for an engine is provided. The device includes at least two cam elements per one shaft. End face cams are formed in opposing end faces of two adjacent cam elements, and the end face cams respectively have protruding portions being formed offset in phase so that the protruding portions overlap in the axial directions when the two cam elements are close to each other. A control member is provided, the control member is projected to an actuated position at which the control member is projected to engage with the end face cams so as to separate the adjacent cam elements from each other when the cam elements are close to each other, and the control member is retreated to a non-actuated position at which the control member is retreated from the actuated position.
Abstract translation: 提供一种用于发动机的阀操作装置。 该装置包括每个轴至少两个凸轮元件。 端面凸轮形成在两个相邻的凸轮元件的相对的端面中，并且端面凸轮分别具有相位偏移地形成的突出部分，使得当两个凸轮元件彼此靠近时，突出部分在轴向方向上重叠。 设置有控制构件，控制构件突出到致动位置，在该致动位置，当凸轮元件彼此接近时，控制构件突出以与端面凸轮接合，以便将相邻的凸轮元件彼此分离， 并且控制构件被退回到非致动位置，在该非致动位置控制构件从致动位置退回。
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公开(公告)号：US12101917B2
公开(公告)日：2024-09-24
申请号：US17970498
申请日：2022-10-20
Applicant: Mazda Motor Corporation , Rohm Co., Ltd.
Inventor： Takayuki Sato , Akihiro Noda , Masashi Hayashiguchi
CPC classification number: H05K7/20927 , B60L50/51 , H02M7/003 , H02M7/537 , B60L2210/40 , B60L2220/50
Abstract: In a vehicle drive unit, a motor and an inverter are disposed adjacent in an axial direction of the motor. A smoothing capacitor and each power module are connected by a busbar. Each power module has a flat shape having a wide width, and has a first cooling surface facing the motor. The first cooling surface of each power module is placed on a placement surface orthogonal to the axial direction. The plate-shaped busbar has a second cooling surface facing the motor. The busbar is connected to the smoothing capacitor and each power module, and is formed with a wide width so as to extend along a direction in which each power module is disposed side by side. The second cooling surface is placed on the placement surface. A cooling portion facing the first and second cooling surfaces is provided closer to the motor than the placement surface.
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公开(公告)号：US20230137055A1
公开(公告)日：2023-05-04
申请号：US17971385
申请日：2022-10-21
Applicant: Mazda Motor Corporation , Rohm Co., Ltd.
Inventor： Takayuki Sato , Akihiro Noda , Hiroaki Kashihara , Hideki Yamada , Hideki Hosoya , Masashi Hayashiguchi
Abstract: An inverter is disposed adjacent to a motor. The inverter includes a plurality of power modules, a smoothing capacitor, and busbars connecting the power modules and the smoothing capacitor. The plurality of power modules are disposed to be arranged along the periphery of the smoothing capacitor. The smoothing capacitor is disposed at a central portion of the inverter and also disposed in the inner portion of the inverter such that the smoothing capacitor and each of the power modules are arranged on the same plane.
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公开(公告)号：US11008929B2
公开(公告)日：2021-05-18
申请号：US16479451
申请日：2018-02-21
Applicant: Mazda Motor Corporation
Inventor： Takayoshi Fujita , Takafumi Nishio , Kouichi Miyamoto , Tatsuya Takahata , Yasushi Nakahara , Akihiro Noda
Abstract: Provided is an engine cooling apparatus capable of preventing deterioration in reliability of a cylinder head of an engine during cold engine operation. The engine cooling apparatus comprises an engine cooling water path, a heater core cooling path, and a radiator cooling water path, and further comprises a switching valve for switching among these cooling water paths. The switching valve is operable, when the temperature of an area around an exhaust valve is raised to a value greater than, e.g., 150° C., even in a situation where the temperature of cooling water for cooling the engine is equal to or less than, e.g., 50° C., to switch from the in-engine cooling water path to the heater core cooling water path.
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公开(公告)号：US09441510B2
公开(公告)日：2016-09-13
申请号：US14655700
申请日：2014-05-02
Applicant: MAZDA MOTOR CORPORATION
Inventor： Akihiro Noda , Shigeki Komatsu , Yukio Misaki
CPC classification number: F01L13/0036 , F01L1/047 , F01L1/08 , F01L1/185 , F01L13/0042 , F01L2001/0535 , F01L2013/0052 , F01L2013/0078 , F01L2105/00
Abstract: A valve system includes: a cam shaft including a shaft section and a plurality of cam element sections; and a plurality of operation members that moves the cam element sections in an axial direction. The plurality of operation members include a common operation member that is provided in common between end face cams opposed to each other of the cam element sections of two cylinders disposed adjacent to each other and continuous in ignition order and that engages with the respective end face cams when both the cam element sections are close to each other, and individual operation members that are individually provided for end face cams opposed to each other of the cam element sections of two cylinders disposed adjacent to each other and discontinuous in ignition order and end face cams located at opposite ends of a cylinder row and that engage with the respective end face cams.
Abstract translation: 一种阀系统，包括：凸轮轴，包括轴部和多个凸轮元件部; 以及沿轴向移动凸轮元件部分的多个操作构件。 多个操作构件包括公共操作构件，其共同设置在彼此相邻并且以点火顺序连续的两个气缸的彼此相对的端面凸轮之间并且与相应的端面凸轮接合 当两个凸轮元件部分彼此靠近时，并且分别设置用于端面凸轮的各个操作构件，其彼此相邻并且彼此相邻并且以点火顺序不连续的两个气缸的凸轮元件部分相对并且端面凸轮 位于气缸列的相对端并且与相应的端面凸轮接合。
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Patent Agency Ranking
公开(公告)号：US09038584B2
公开(公告)日：2015-05-26
申请号：US14184366
申请日：2014-02-19
Applicant: Mazda Motor Corporation
Inventor： Takashi Kashiwabara , Akihiro Noda
CPC classification number: F01L13/0036 , F01L1/047 , F01L2001/0473 , F01L2013/0052 , F01L2820/031
Abstract: A valve operating device for an engine is provided. The device includes a cam element formed with an end face cam in one end thereof, and a control member driven by an actuator to project to an actuated position at which the control member is projected to engage with the end face cam so as to move the cam element in one of the axial directions, and retreat to a non-actuated position at which the control member is retreated from the actuated position. The cam element has a slope inclining in a circumferential direction of the cam element and for, when the control member is at the actuated position, sliding in contact with a contact part provided at the control member so as to forcibly move the control member back to the non-actuated position after the movement of the cam element via the end face cam is finished.
Abstract translation: 提供一种用于发动机的阀操作装置。 该装置包括在其一端形成有端面凸轮的凸轮元件和由致动器驱动以突出到致动位置的控制构件，在该致动位置处，控制构件突出以与端面凸轮接合，以便移动 凸轮元件在一个轴向方向上，并且退回到非致动位置，在该非致动位置控制构件从致动位置退回。 凸轮元件具有在凸轮元件的圆周方向上倾斜的倾斜度，并且当控制构件处于致动位置时，与设置在控制构件上的接触部分接触地滑动以便将控制构件强制地移动到 通过端面凸轮移动凸轮元件后的非致动位置结束。
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公开(公告)号：US20230140022A1
公开(公告)日：2023-05-04
申请号：US17970498
申请日：2022-10-20
Applicant: Mazda Motor Corporation , Rohm Co., Ltd.
Inventor： Takayuki Sato , Akihiro Noda , Masashi Hayashiguchi
Abstract: In a vehicle drive unit, a motor and an inverter are disposed adjacent in an axial direction of the motor. A smoothing capacitor and each power module are connected by a busbar. Each power module has a flat shape having a wide width, and has a first cooling surface facing the motor. The first cooling surface of each power module is placed on a placement surface orthogonal to the axial direction. The plate-shaped busbar has a second cooling surface facing the motor. The busbar is connected to the smoothing capacitor and each power module, and is formed with a wide width so as to extend along a direction in which each power module is disposed side by side. The second cooling surface is placed on the placement surface. A cooling portion facing the first and second cooling surfaces is provided closer to the motor than the placement surface.
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公开(公告)号：US12272996B2
公开(公告)日：2025-04-08
申请号：US17971392
申请日：2022-10-21
Applicant: Mazda Motor Corporation , Rohm Co., Ltd.
Inventor： Takayuki Sato , Akihiro Noda , Masashi Hayashiguchi
Abstract: An inverter is disposed adjacent to one end of a motor in a rotational axis direction. The inverter includes a plurality of power modules each including a switching element, a smoothing capacitor, busbars that connect the power modules to the smoothing capacitor, and a thin case that accommodates these components. The switching element is constituted by a silicon carbide metal oxide semiconductor field effect transistor (SiC MOSFET). The smoothing capacitor and each of the power modules are disposed in an inner portion of the thin case and arranged on the same plane orthogonal to the rotational axis direction.
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公开(公告)号：US20230132540A1
公开(公告)日：2023-05-04
申请号：US17971392
申请日：2022-10-21
Applicant: Mazda Motor Corporation , Rohm Co., Ltd.
Inventor： Takayuki Sato , Akihiro Noda , Masashi Hayashiguchi
Abstract: An inverter is disposed adjacent to one end of a motor in a rotational axis direction. The inverter includes a plurality of power modules each including a switching element, a smoothing capacitor, busbars that connect the power modules to the smoothing capacitor, and a thin case that accommodates these components. The switching element is constituted by a silicon carbide metal oxide semiconductor field effect transistor (SiC MOSFET). The smoothing capacitor and each of the power modules are disposed in an inner portion of the thin case and arranged on the same plane orthogonal to the rotational axis direction.
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公开(公告)号：US09309786B2
公开(公告)日：2016-04-12
申请号：US14184346
申请日：2014-02-19
Applicant: Mazda Motor Corporation
Inventor： Takashi Kashiwabara , Akihiro Noda
CPC classification number: F01L1/047 , F01L13/0036 , F01L2001/0473 , F01L2013/0052 , F01L2820/031
Abstract: A valve operating device for an engine is provided. The device includes at least two cam elements per one shaft. End face cams are formed in opposing end faces of two adjacent cam elements, and the end face cams respectively have protruding portions being formed offset in phase so that the protruding portions overlap in the axial directions when the two cam elements are close to each other. A control member is provided, the control member is projected to an actuated position at which the control member is projected to engage with the end face cams so as to separate the adjacent cam elements from each other when the cam elements are close to each other, and the control member is retreated to a non-actuated position at which the control member is retreated from the actuated position.
Abstract translation: 提供一种用于发动机的阀操作装置。 该装置包括每个轴至少两个凸轮元件。 端面凸轮形成在两个相邻的凸轮元件的相对的端面中，并且端面凸轮分别具有相位偏移地形成的突出部分，使得当两个凸轮元件彼此靠近时，突出部分在轴向方向上重叠。 设置有控制构件，控制构件突出到致动位置，在该致动位置，当凸轮元件彼此接近时，控制构件突出以与端面凸轮接合，以便将相邻的凸轮元件彼此分离， 并且控制构件被退回到非致动位置，在该非致动位置控制构件从致动位置退回。
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