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1. 发明申请

US20190242323A1 FUEL INJECTION CONTROL DEVICE 审中-公开
公开(公告)号：US20190242323A1
公开(公告)日：2019-08-08
申请号：US16388960
申请日：2019-04-19
申请人： DENSO CORPORATION
发明人： Kazuhiro NISHIGAKI
IPC分类号： F02D41/20 , F02M51/06 , F02M61/04
CPC分类号： F02D41/20 , F02M51/00 , F02M51/06 , F02M51/0603 , F02M51/061 , F02M61/04
摘要： A fuel injection control device is for a fuel injection system including a fuel injection valve for injecting a fuel in an internal combustion engine. The fuel injection system is configured to perform multiple-stage injection for injecting fuel multiple times in one combustion cycle. The fuel injection control device includes an information acquisition unit to acquire a parameter, which indicates an influence of a pre-stage injection on a post-stage injection, in the pre-stage injection and the post-stage injection subsequent to the pre-stage injection in the multi-stage injection. The fuel injection control device further includes a correction unit to correct a mode of the post-stage injection based on the parameter.

2. 发明申请

US20190203687A1 VALVE BODY OPERATION ESTIMATION DEVICE 审中-公开
公开(公告)号：US20190203687A1
公开(公告)日：2019-07-04
申请号：US16293734
申请日：2019-03-06
申请人： DENSO CORPORATION
发明人： Keisuke YANOTO
IPC分类号： F02M65/00 , F02M51/06 , F02D41/40 , B05B12/00 , B05B12/02
CPC分类号： F02M65/005 , B05B12/004 , B05B12/02 , F02D41/20 , F02D41/34 , F02D41/40 , F02D41/401 , F02D2200/0618 , F02M51/00 , F02M51/06 , F02M51/061 , F02M61/10 , F02M65/00
摘要： An ECU as a valve body operation estimation device includes a sampling unit that obtains at least one of voltage and current of the electromagnetic coil as sample values at intervals of a predetermined time in a sampling period set based on a predetermined reference timing, a variation calculation unit that calculates a degree of variation of the sample values obtained in the sampling period, a variation waveform which represents a change of the degree of variation caused by shifting the reference timing including a point at which the degree of variation reduces and then rises as the reference timing is delayed, the point referred to as a rising start point, and a timing estimation unit that estimates an operation timing of a valve body based on the reference timing at the rising start point.

3. 发明申请

US20180258894A1 FUEL INJECTION VALVE 审中-公开
公开(公告)号：US20180258894A1
公开(公告)日：2018-09-13
申请号：US15758093
申请日：2016-08-02
申请人： HITACHI AUTOMOTIVE SYSTEMS, LTD.
发明人： Akihiro YAMAZAKI , Takahiro SAITO , Nobuaki KOBAYASHI , Akiyasu MIYAMOTO
IPC分类号： F02M51/06
CPC分类号： F02M51/0682 , F02M51/06 , F02M51/0614 , F02M51/0632 , F02M51/0678
摘要： The present invention includes a valve seat and a valve body that cooperatively open/close a fuel passage, a movable element having the valve body provided at one end part thereof and a movable iron core 27a provided at the other end part thereof, a fixed iron core 25 which faces the movable iron core 27a and which attracts the movable iron core 27a by applying a magnetic attraction force thereto, and a cylindrical member that includes thereinside the fixed iron core 25 and the movable iron core 27a. The fixed iron core 25 includes a reduced-diameter part 25m on an outer circumferential surface at the side facing the movable iron core 27a, and the movable iron core 27a includes a reduced-diameter part 27am on an outer circumferential surface at the side facing the fixed iron core 25.

4. 发明申请

US20180195480A1 FUEL INJECTION VALVE 审中-公开
公开(公告)号：US20180195480A1
公开(公告)日：2018-07-12
申请号：US15742066
申请日：2016-05-25
申请人： DENSO CORPORATION
发明人： Yuusuke TODA , Shuichi MATSUMOTO , Yoshinori YAMASHITA
IPC分类号： F02M61/18 , F02M51/06 , F02M69/00
CPC分类号： F02M61/188 , F02M51/06 , F02M51/0603 , F02M61/04 , F02M61/18 , F02M61/1873 , F02M69/00
摘要： A fuel injection valve includes a valve housing having an injection hole and a valve seat surface tapering toward a downstream side, a valve component that is accommodated in the valve housing and is coaxially separated from or seated on the valve seat surface, and an elastic component biasing the valve component toward the valve seat surface. The valve component includes an inner convex surface curved in a partial spherical shape with a predetermined curvature radius, and an outer convex surface that is provided continuously to the outer peripheral side of the inner convex surface and curved in a partial spherical shape having a smaller curvature radius than the inner convex surface. A boundary portion between the inner convex surface and the outer convex surface protrudes toward the valve seat surface so as to be able to be separated from or seated on the valve seat surface.

5. 发明授权

US09995240B2 Method for regulating a common-rail injector 有权
公开(公告)号：US09995240B2
公开(公告)日：2018-06-12
申请号：US15123525
申请日：2015-02-19
申请人： Robert Bosch GmbH
发明人： Ralph Kober , Holger Rapp , Fabian Fischer , Marco Beier , Stefan Stein
IPC分类号： F02D41/40 , F02M57/00 , F02M51/06 , F02M63/00 , F02M47/02 , F02D41/38 , F02D41/20
CPC分类号： F02D41/40 , F02D41/20 , F02D41/38 , F02D2041/2055 , F02D2041/2062 , F02D2200/0602 , F02D2200/0612 , F02D2200/0618 , F02D2200/063 , F02M47/027 , F02M51/06 , F02M57/005 , F02M63/0017 , F02M63/0033 , F02M63/0071 , F02M2200/247 , F02M2547/003 , Y02T10/44
摘要： A method for regulating a common rail injector, the method including acquiring a signal of a sensor, which signal is proportional to a pressure in a valve space of the common rail injector; evaluating a change in the signal over time in order to detect at least one operating event of the common rail injector; and modifying at least one operating variable of the common rail injector as a function of the at least one operating event, the at least one operating variable being selected from an opening duration, a closing duration, an opening point in time, and a closing point in time of a switching valve of the common rail injector, and from an opening duration, an opening point in time, and a closing point in time of a needle valve of the common rail injector.

6. 发明申请

US20180142656A1 FUEL INJECTION DEVICE 审中-公开
公开(公告)号：US20180142656A1
公开(公告)日：2018-05-24
申请号：US15580032
申请日：2016-05-12
申请人： DENSO CORPORATION
发明人： Shinobu OIKAWA , Eiji MIMURA
IPC分类号： F02M61/18 , F02M51/06 , F02M61/10
CPC分类号： F02M61/18 , F02M51/06 , F02M51/0614 , F02M51/0625 , F02M51/0682 , F02M61/10 , F02M61/12 , F02M61/16 , F16K31/06 , H01F7/121 , H01F7/1607
摘要： An inside projection is formed in one piece with a second tubular member and projects in a tubular form toward a third tubular member, and an outside projection is formed in one piece with the third tubular member and projects in a tubular form toward the second tubular member, while an inner wall of the outside projection is engaged with an outer wall of the inside projection. Another inside projection is formed in one piece with the second tubular member and projects in a tubular form toward a first tubular member, and another outside projection is formed in one piece with the first tubular member and projects in a tubular form toward the second tubular member, while an inner wall of the outside projection is engaged with an outer wall of the inside projection.

7. 发明申请

US20180100478A1 VALVE DEVICE AND DEVICE FOR MANUFACTURING VALVE DEVICE 审中-公开
公开(公告)号：US20180100478A1
公开(公告)日：2018-04-12
申请号：US15567699
申请日：2016-04-08
申请人： DENSO CORPORATION
发明人： Kouichi MOCHIZUKI , Eiji ITOH
IPC分类号： F02M61/18 , F02M61/16 , F02M61/20 , F02M55/00
CPC分类号： F02M61/188 , F02M21/0278 , F02M51/06 , F02M51/0671 , F02M55/008 , F02M61/16 , F02M61/161 , F02M61/165 , F02M61/168 , F02M61/20 , F02M2200/50 , F02M2200/505
摘要： A valve device includes a valve housing having a hole and a seat provided on a periphery of the hole, a tubular member, a valve member opening the hole when moving away from the seat and closing the hole when being in contact with the seat, an urging member urging the valve member in a valve closing direction or a valve opening direction, an intermediate member being immovably relative to the tubular member, an adjusting member having a communication passage and configured to adjust an urging force of the urging member via the intermediate member according to a position relative to the tubular member when fixed to the tubular member, and a swelling member provided between the intermediate member and the tubular member and configured to be in contact with the intermediate member and the tubular member by swelling when touched with a fluid flowing through the hole.

8. 发明申请

US20180066620A1 FUEL INJECTION VALVE 审中-公开
公开(公告)号：US20180066620A1
公开(公告)日：2018-03-08
申请号：US15554045
申请日：2016-02-05
申请人： HITACHI AUTOMOTIVE SYSTEMS, LTD.
发明人： Masaki NAGAOKA , Nobuaki KOBAYASHI , Ryuta KINOSHITA
IPC分类号： F02M61/18 , F02M61/16 , F02M63/00 , F02M51/06
CPC分类号： F02M61/1806 , F02M51/06 , F02M51/061 , F02M61/162 , F02M61/18 , F02M61/1853 , F02M63/0031
摘要： Disclosed is a fuel injection valve comprising: a fuel injection orifice provided in a downstream side of a valve seat which a valve body moves toward and away from; a swirl chamber having a swirl passage formed around the entry opening of the fuel injection orifice; and a transverse passage whose end is opened in an inner circumferential wall of the swirl chamber in order to provide a fuel into the swirl chamber, wherein a center of the entry opening is shifted from a first position where the velocity component in the swirl direction of the fuel can be maximized to a second position where the velocity component in the swirl direction is reduced, and where a velocity component in a center axis direction of the fuel injection orifice is enhanced. Thereby, it is possible to easily adjust a fuel injection amount and a spray angle.

9. 发明申请

US20180045156A1 FUEL INJECTION VALVE 审中-公开
公开(公告)号：US20180045156A1
公开(公告)日：2018-02-15
申请号：US15551459
申请日：2016-02-05
申请人： HITACHI AUTOMOTIVE SYSTEMS, LTD.
发明人： Takahiro SAITO , Nobuaki KOBAYASHI , Eiji TAMURA
IPC分类号： F02M61/18 , F02M51/06
CPC分类号： F02M61/1806 , F02M51/06 , F02M51/061 , F02M51/0682 , F02M61/1853
摘要： A fuel injection valve includes a valve seat 15b and a valve body 27c that cooperate with each other to open and close a fuel passage, a movable element 27 that has the valve body 27c provided at one end thereof and has a fuel passage formed therein, a valve seat member 15 having the valve seat 15b formed thereon, an upstream-side communication hole 27boa that is located upstream of the flow of fuel and connects the inside and outside of the movable element 27, and a downstream-side communication hole 27bob that is located downstream of the flow of fuel and connects the inside and outside of the movable element, in which a guide section for the valve body 27c, where the valve seat member 15 and the valve body 27c are in sliding contact with each other, is provided downstream of the downstream-side communication hole 27bob and in which a fuel passage 17h for connecting in the center axis direction the upstream side and downstream side of the guide section is provided at the same angular position in the circumferential direction of the movable element 27 as the downstream-side communication hole 27bob. With this arrangement, even if a foreign thing is accidently mixed into the fuel passage during the production process, the foreign thing can be removed with a shorter running-in operation time.

10. 发明授权

US09863333B2 Dual fuel injector and engine using same 有权
公开(公告)号：US09863333B2
公开(公告)日：2018-01-09
申请号：US14604041
申请日：2015-01-23
申请人： Caterpillar Inc.
发明人： Hoisan Kim , Mark F. Sommars , Xiangdong Ding
IPC分类号： F02D19/06 , F02D19/10 , F02M43/04 , F02M45/08 , F02M47/02 , F02M63/02 , F02M51/06
CPC分类号： F02D19/0615 , F02D19/0684 , F02D19/0694 , F02D19/10 , F02M43/04 , F02M45/086 , F02M47/027 , F02M51/06 , F02M51/0625 , F02M63/029 , F02M2200/44 , F02M2200/46 , Y02T10/36
摘要： A dual fuel injector may be used to inject both gas and liquid fuel into a cylinder of a compression ignition engine. An injector body defines a first set of nozzle outlets, a second set of nozzle outlets, a first fuel inlet and a second fuel inlet. A dual solenoid actuator includes a first armature, a first coil, a second armature and a second coil that share a common centerline. The dual solenoid actuator has a non-injection configuration at which the first armature is at an un-energized position and the second armature is at an un-energized position. The dual solenoid actuator has a first fuel injection configuration at which the first fuel inlet is fluidly connected to the first set of nozzle outlets, the first armature is at an energized position and the second armature is at the un-energized position.

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