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公开(公告)号：US10890269B2
公开(公告)日：2021-01-12
申请号：US16041986
申请日：2018-07-23
申请人： DENSO CORPORATION
摘要： In a valve apparatus, a housing includes a plurality of through holes through which a fluid flows. A first valve member opens and closes a first through hole. A second valve member opens and closes at least one second through hole. A fixed core does not move relative to the housing. A coil forms magnetic field. A first movable core moves integrally with the first valve member. When the coil forms the magnetic field, a magnetic attractive force is generated between the first movable core and the fixed core. A second movable core moves integrally with the second valve member. When the coil forms the magnetic field, a magnetic attractive force is generated between the second movable core and the fixed core. A magnetic constriction portion is provided between the fixed core and the first movable core. The second through hole is opened after the first through hole is opened.
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公开(公告)号：US10030612B2
公开(公告)日：2018-07-24
申请号：US15022230
申请日：2014-09-01
申请人： DENSO CORPORATION
发明人： Takashi Furukawa
IPC分类号： F02M21/02 , F02M35/10 , F02M35/104
摘要： A fuel injection system includes a first injection valve, a second injection valve, a communication pipe, and an ECU. The communication pipe makes a second passage of the second injection valve and a back pressure chamber of the first injection valve communicate with each other. The ECU controls an electric actuator of the second injection valve so as to switch first injection control and second injection control according to the required injection amount. In the first injection control, a second valve body is opened for a predetermined time or more so that back pressure lowers to the pressure of opening a first valve body. In the second injection control, the second valve body is opened for less than the predetermined time so that the back pressure does not lower to the pressure of opening the first valve body.
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公开(公告)号：US20140224903A1
公开(公告)日：2014-08-14
申请号：US14345800
申请日：2012-09-12
申请人： DENSO CORPORATION
发明人： Tomoki Fujino , Takashi Furukawa , Yusuke Hongo
IPC分类号： F02M51/06
CPC分类号： F02M51/0625 , F02M21/0212 , F02M21/0254 , F02M21/0266 , F02M21/0269 , F02M51/0664 , F02M51/0682 , F02M51/0685 , F02M61/08 , F02M61/166 , F02M61/1893 , F02M2200/9015 , Y02T10/32 , Y10T29/49002
摘要： A fuel injector 100 includes a nozzle member 60 having a fuel passage 60a leading to an injection port 60b; a valve main body 51 adapted to reciprocate for opening and closing the fuel passage 60a; an elastic portion 56 elastically deformable in closing the fuel passage 60a by movement of the valve main body 51 in a closing direction, the elastic member being attached to one of the nozzle member 60 and the valve main body 51 and adapted to be abutted against the other of the nozzle member 60 and the valve main body 51 to close the fuel passage 60a by moving the valve main body 51 in the closing direction; and a stopper 70 adapted to restrict movement of the valve main body 51 in the closing direction by being abutted against the valve main body 51, the stopper 70 being formed of material different from the nozzle member 60.
摘要翻译： 燃料喷射器100包括具有通向喷射口60b的燃料通道60a的喷嘴构件60; 阀主体51，其适于往复运动以打开和关闭燃料通道60a; 弹性部分56，通过阀主体51沿关闭方向的移动来关闭燃料通道60a而弹性变形，该弹性部件安装在喷嘴部件60和阀主体51中的一个上，并适于抵靠 喷嘴构件60和阀主体51中的另一个，通过使阀主体51沿关闭方向移动而关闭燃料通道60a; 以及止动件70，其通过抵靠阀主体51而限制阀主体51在关闭方向上的移动，止动件70由与喷嘴构件60不同的材料形成。
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公开(公告)号：US10344721B2
公开(公告)日：2019-07-09
申请号：US15709046
申请日：2017-09-19
申请人： DENSO CORPORATION
发明人： Tomoki Fujino , Takashi Furukawa , Yusuke Hongo
摘要： A fuel injector 100 includes a nozzle member 60 having a fuel passage 60a leading to an injection port 60b; a valve main body 51 adapted to reciprocate for opening and closing the fuel passage 60a; an elastic portion 56 elastically deformable in closing the fuel passage 60a by movement of the valve main body 51 in a closing direction, the elastic member being attached to one of the nozzle member 60 and the valve main body 51 and adapted to be abutted against the other of the nozzle member 60 and the valve main body 51 to close the fuel passage 60a by moving the valve main body 51 in the closing direction; and a stopper 70 adapted to restrict movement of the valve main body 51 in the closing direction by being abutted against the valve main body 51, the stopper 70 being formed of material different from the nozzle member 60.
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公开(公告)号：US10012558B2
公开(公告)日：2018-07-03
申请号：US15343456
申请日：2016-11-04
申请人： DENSO CORPORATION
发明人： Shoichi Takemoto , Syuichi Nakano , Nobuyuki Abe , Kenji Ito , Takashi Furukawa
CPC分类号： G01L9/008 , F23Q7/001 , F23Q2007/002 , F23Q2007/005 , G01L23/10
摘要： In a combustion pressure sensor, a sensor holder is installed in a housing. The sensor holder has an end contact surface. A load transfer member is installed in the housing. The load transfer member has a contact surface facing the end contact surface of the sensor holder. The contact surface of the load transfer member is in contact with the end contact surface of the sensor holder. One of the contact surface of the load transfer member and the end contact surface of the sensor holder has a concavely curved shape, and the other thereof has a convexly curved shape.
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公开(公告)号：US09670880B2
公开(公告)日：2017-06-06
申请号：US14717241
申请日：2015-05-20
申请人： DENSO CORPORATION
发明人： Takashi Furukawa
IPC分类号： F02M21/02 , F02D41/40 , F02M35/10 , F02D41/34 , F02D19/02 , F02D41/00 , F02D41/30 , F02B43/00
CPC分类号： F02M21/0284 , F02B43/00 , F02D19/024 , F02D41/0027 , F02D41/3094 , F02D41/345 , F02D41/402 , F02M21/0215 , F02M21/0278 , F02M35/10177 , Y02T10/32 , Y02T10/44
摘要： A gaseous fuel feed apparatus includes a first injector and a second injector which are provided in each cylinder of a gas engine. The first injector injects a gaseous fuel into an intake passage. The second injector injects the gaseous fuel in an injecting direction intersecting with an injecting direction of the gaseous fuel injected by the first injector, such that the gaseous fuel injected by the second injector collides with the gaseous fuel injected by the first injector. Thus, the gaseous fuel injected by the first injector can be forcibly pressed toward a flow of an air by utilizing an injection energy of the gaseous fuel injected by the second injector. Further, the first injector and the second injector may be placed at the same position of the intake passage, and can be placed at a position of the intake passage that is adjacent to a combustion chamber.
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公开(公告)号：US10550814B2
公开(公告)日：2020-02-04
申请号：US15641926
申请日：2017-07-05
申请人： DENSO CORPORATION
发明人： Takashi Furukawa
摘要： A characteristic determining device is provided which determines fuel injection characteristics of a plurality of fuel injectors for an internal combustion engine. The characteristic determining device includes a pressure sensor and a plurality of pipes each of which connects between the pressure sensor and one of the fuel injectors. The pressure sensor is designed to have a plurality of pressure inputs from the respective fuel injectors through the pipes and outputs a signal indicative of a level of pressure in each of the fuel injectors. The characteristic determining device analyzes the signals from the first pressure sensor to determine the fuel injection characteristics of the respective fuel injectors. These arrangements result in a simplified structure of the characteristic determining device and a decreased manufacturing cost thereof.
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公开(公告)号：US09200545B2
公开(公告)日：2015-12-01
申请号：US14459604
申请日：2014-08-14
申请人： DENSO CORPORATION
CPC分类号： F01L1/34409 , F01L1/352 , F01L2001/34479 , F01L2001/3522 , F16D57/002 , F16F9/53
摘要： A torque control device includes a seal structure sealing a clearance between a hollow object and a rotation shaft. The seal structure includes a particle seal, a liquid seal, an intermediate fluid which fills a middle chamber defined between the particle seal and the liquid seal, and a coating film having a hardness higher than that of magnetic particle. The coating film is arranged to at least at a seal perimeter part of the rotation shaft, and a seal gap is defined between the particle seal and the seal perimeter part.
摘要翻译： 扭矩控制装置包括密封中空物体与旋转轴之间的间隙的密封结构。 密封结构包括颗粒密封件，液体密封件，填充限定在颗粒密封件和液体密封件之间的中间室的中间流体以及硬度高于磁性颗粒的涂层膜。 涂膜至少设置在旋转轴的密封周边部分，并且在颗粒密封件和密封周边部分之间限定密封间隙。
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