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1. 发明申请

US20060255898A1 Ignition coil apparatus for an internal combustion engine 有权
标题翻译：内燃机用点火线圈装置
公开(公告)号：US20060255898A1
公开(公告)日：2006-11-16
申请号：US11222940
申请日：2005-09-12
申请人： Nobuyuki Sawazaki , Tomokazu Umezaki
发明人： Nobuyuki Sawazaki , Tomokazu Umezaki
IPC分类号： H01F27/02
CPC分类号： H01F38/12 , H01F27/2828 , H01F41/10
摘要： An ignition coil apparatus for an internal combustion engine can suppress an increase in the manufacturing cost of a terminal of a low-tension side connector resulting from variation in a wire diameter of an one end of a primary winding, and can ensure a stable fusing state. The positive terminal side fusing portion is composed of a planar portion and a turned portion that is inversely turned back from the planar portion to cooperate therewith to clamp a winding start conductor portion. A first bent portion of a radius of curvature R is formed at a base end portion of the turned portion. A second bent portion with its tip end tilted toward a planar portion is formed at an intermediate portion of the turned portion.
摘要翻译：一种用于内燃机的点火线圈装置可以抑制由于初级绕组的一端的线径的变化导致的低压侧连接器的端子的制造成本的增加，并且可以确保稳定的熔合状态。正极侧侧熔合部由平面部和从平面部反向反转的转动部构成，以与其配合以夹紧绕线起始导体部。曲率半径R的第一弯曲部分形成在转动部分的基端部分。在转向部分的中间部分处形成有其顶端朝向平坦部分倾斜的第二弯曲部分。

2. 发明授权

US5722378A Ignition detection circuit 失效
标题翻译：点火检测电路
公开(公告)号：US5722378A
公开(公告)日：1998-03-03
申请号：US719882
申请日：1996-09-25
申请人： Nobuyuki Sawazaki , Masaaki Taruya , Mitsuru Koiwa
发明人： Nobuyuki Sawazaki , Masaaki Taruya , Mitsuru Koiwa
IPC分类号： F02P3/045 , F02P3/055 , F02P17/12
CPC分类号： F02P17/12
摘要： An ignition circuit IG converts a battery voltage into a high spark plug discharge voltage. A resistor R1 inserted into the power supply path L detects the current flowing through the ignition circuit by converting the current into a voltage, and a level shift circuit LS shifts the potential level at both terminals of the detection resistor. A level deviation detection circuit regulates the level of a deviation voltage developed across the detection resistor, which is caused when an electric current flows from the battery to the ignition circuit, and outputs the deviation voltage. A reference voltage generation portion sets a reference voltage to be compared with the deviation voltage by a comparator COM. A clamping circuit CL suppresses variations in the power supply voltage corresponding to the level deviation detection circuit and the comparator, and protects the level deviation detection circuit. Thus, the influence of a surge voltage exerted on the comparator embodied in a monolithic IC is greatly reduced. Moreover, the accuracy in detecting a load current at the time of engine ignition is enhanced.
摘要翻译：点火电路IG将电池电压转换成高火花塞放电电压。插入电源路径L的电阻R1通过将电流转换为电压来检测流过点火电路的电流，电平移位电路LS使检测电阻的两端的电位移位。电平偏差检测电路调节当电流从电池流向点火电路时引起的检测电阻器两端产生的偏差电压的电平，并输出偏差电压。参考电压产生部分通过比较器COM设置与偏差电压进行比较的参考电压。钳位电路CL抑制与电平偏差检测电路和比较器相对应的电源电压的变化，并且保护电平偏差检测电路。因此，大大降低了施加在单片IC上体现的比较器上的浪涌电压的影响。此外，提高了在发动机点火时检测负载电流的精度。

3. 发明授权

US5662091A Ignition apparatus for internal combustion engine 失效
标题翻译：内燃机点火装置
公开(公告)号：US5662091A
公开(公告)日：1997-09-02
申请号：US629147
申请日：1996-04-08
申请人： Nobuyuki Sawazaki , Mitsuru Koiwa , Shigemi Murata
发明人： Nobuyuki Sawazaki , Mitsuru Koiwa , Shigemi Murata
IPC分类号： F02P3/02 , F02P3/055 , H01F27/02 , H01F38/12
CPC分类号： F02P3/0552 , F02P3/02 , H01F27/022 , H01F38/12 , H01L2224/48091 , H01L2224/48472 , H01L2224/73265 , H01L2924/181
摘要： An ignition apparatus for an internal combustion engine has an ignition coil 4,5 disposed within an electrically insulating case 1, and a power switch 6 disposed within the case and comprising a switching unit 8, 9 for intermittently supplying a primary current to the ignition coil. A gel 12 is disposed over the switching unit and at least one electrical wire conductor 21 having one end connected to the switching unit and the other end extending outwardly of the power switch. An electrically insulating resin 14 fills the insulating case, and supports/covers the ignition coil and the power switch. The electrical wire conductor includes a flexible bent portion 21a disposed within the gel for absorbing any tension in the conductor. With this arrangement, a heat shock resistant performance of the wire conductor is improved and working reliability is also improved.
摘要翻译：一种用于内燃机的点火装置具有设置在电绝缘壳体1内的点火线圈4,5和设置在壳体内的电源开关6，包括用于向点火线圈间歇地提供初级电流的开关单元8,9 。凝胶12设置在开关单元上方，以及至少一个电线导体21，其一端连接到开关单元，另一端延伸到电源开关外部。电绝缘树脂14填充绝缘壳体，并且支撑/覆盖点火线圈和电源开关。电线导体包括设置在凝胶内的柔性弯曲部分21a，用于吸收导体中的任何张力。通过这种布置，提高了导线的耐热冲击性能，并且提高了工作可靠性。

4. 发明授权

US5365909A Ignitor for an internal combustion engine 失效
标题翻译：用于内燃机的点火器
公开(公告)号：US5365909A
公开(公告)日：1994-11-22
申请号：US76200
申请日：1993-06-14
申请人： Nobuyuki Sawazaki , Masaaki Taruya , Mitsuru Koiwa
发明人： Nobuyuki Sawazaki , Masaaki Taruya , Mitsuru Koiwa
IPC分类号： F02P3/02 , F02P7/02 , F02P3/00
CPC分类号： F02P3/02 , F02P7/026
摘要： An ignitor comprises an ignition coil unit mounted to a base and a control unit disposed on the ignition coil unit and electrically connected thereto for controlling a primary current to the ignition coil unit, which includes a base plate attached to the base and a crank angle sensor for detecting the turning angle of an engine crank shaft. The ignitor also comprises a rotary shaft rotatably supported by the base for rotation in synchronization with the rotation of an internal combustion engine which extends through the ignition coil unit and has a distributor rotor on an extended end thereof. The control unit further comprises a power switch package having a mold resin which hermetically molds therein a power transistor and an integrated controlling circuit into a sealed package. The power transistor interrupts an electric current flowing through a primary coil of the ignition coil and an integrated controlling circuit controls the power transistor.
摘要翻译：点火器包括安装到基座的点火线圈单元和设置在点火线圈单元上并与其电连接的控制单元，用于控制到点火线圈单元的初级电流，该点火线圈单元包括附接到基座的基板和曲柄角传感器用于检测发动机曲轴的转角。点火器还包括旋转轴，所述旋转轴可旋转地支撑在基座上，以与延伸穿过点火线圈单元的内燃机的旋转同步旋转，并且在其延伸端具有分配器转子。控制单元还包括具有模制树脂的功率开关封装，其将功率晶体管和集成控制电路气密地模制成密封封装。功率晶体管中断通过点火线圈的初级线圈的电流，并且集成控制电路控制功率晶体管。

5. 发明授权

US6107790A Ignition coil for internal combustion engine 失效
标题翻译：内燃机点火线圈
公开(公告)号：US6107790A
公开(公告)日：2000-08-22
申请号：US206669
申请日：1994-03-07
申请人： Nobuyuki Sawazaki , Takafumi Narishige , Shigemi Murata , Mitsuru Koiwa , Yutaka Ohashi
发明人： Nobuyuki Sawazaki , Takafumi Narishige , Shigemi Murata , Mitsuru Koiwa , Yutaka Ohashi
IPC分类号： F02P15/00 , F02P3/02 , H01F38/12 , H05F1/00
CPC分类号： H01F38/12 , F02P3/02
摘要： A plurality of ignition coils and a plurality of switching assemblies are accommodated in one case, and a wire harness which interconnects the winding, connectors, and the switching assembly is formed as a unit using a plurality of conductors by means of a resin. In addition, respective electrical connections are established by welding, and soldering is disused. Thereby, it is provided an ignition device in which troublesome wiring between a coil and a switching assembly is eliminated and the reliability of electrical connections is improved, and which is compact and lightweight.
摘要翻译：多个点火线圈和多个开关组件被容纳在一个壳体中，并且将绕组，连接器和开关组件互连的线束通过使用多个导体的树脂形成为单元。此外，通过焊接建立各自的电连接，并且废弃焊接。由此，提供了一种消除线圈和开关组件之间麻烦的布线并且提高了电连接可靠性的点火装置，并且其紧凑轻便。

6. 发明授权

US5477203A Ignition coil assembly for internal combustion engine 失效
标题翻译：内燃机点火线圈组件
公开(公告)号：US5477203A
公开(公告)日：1995-12-19
申请号：US271962
申请日：1994-07-08
申请人： Nobuyuki Sawazaki , Shigemi Murata , Mitsuru Koiwa , Yutaka Ohashi
发明人： Nobuyuki Sawazaki , Shigemi Murata , Mitsuru Koiwa , Yutaka Ohashi
IPC分类号： F02P15/00 , H01F38/12 , H01F27/02 , H01F27/30
CPC分类号： H01F38/12
摘要： An ignition coil assembly for an internal combustion engine includes a primary coil, a secondary coil, at least one bobbin, a core, a first resin member and a casing. The primary coil and said secondary coil are wound on the bobbin. The core has core elements with a gap there-between through which the primary and secondary coils are magnetically coupled to one each other. The casing accommodates the primary and secondary coils, the bobbin and the core. And the first resin member covers a part of the core elements, the part which are confronted with said secondary coil, and the first resin member is accommodated in the casing.
摘要翻译：一种用于内燃机的点火线圈组件，包括一个初级线圈，一个次级线圈，至少一个线轴，一个芯，一个第一树脂部件和一个壳体。初级线圈和次级线圈缠绕在线轴上。芯具有在其间具有间隙的芯元件，初级线圈和次级线圈通过该间隙磁耦合到彼此之间。外壳容纳一次和二次线圈，线轴和芯。并且第一树脂构件覆盖一部分芯元件，面对所述次级线圈的部分，并且第一树脂构件容纳在壳体中。

7. 发明授权

US5438971A Ignition coil device for an internal combustion engine 失效
标题翻译：内燃机点火线圈装置
公开(公告)号：US5438971A
公开(公告)日：1995-08-08
申请号：US165912
申请日：1993-12-14
申请人： Shigemi Murata , Nobuyuki Sawazaki , Mitsuru Koiwa , Yutaka Ohashi
发明人： Shigemi Murata , Nobuyuki Sawazaki , Mitsuru Koiwa , Yutaka Ohashi
IPC分类号： F02P15/00 , F02P3/02 , F02P3/055 , H01F38/12 , H01F3/00
CPC分类号： F02P3/02 , F02P3/0552 , H01F38/12
摘要： An ignition coil device for an internal combustion engine comprising: a plurality of iron cores; a plurality of ignition coils having a plurality of primary coils provided around said plurality of iron cores and a plurality of secondary coils magnetically-coupled with said plurality of primary coils through the plurality of iron cores; a case accommodating the plurality of iron cores and the plurality of ignition coils; and a plurality of control units accommodated in said case of which number is equal to the number of the plurality of ignition coils.
摘要翻译：一种用于内燃机的点火线圈装置，包括：多个铁芯; 多个点火线圈，具有设置在所述多个铁芯周围的多个初级线圈和多个次级线圈，所述次级线圈通过所述多个铁芯与所述多个初级线圈磁耦合; 容纳所述多个铁芯和所述多个点火线圈的壳体; 以及容纳在所述壳体中的多个控制单元，其数量等于所述多个点火线圈的数量。

8. 发明授权

US5199407A Current limiter in an ignition apparatus for an internal combustion engine 失效
标题翻译：内燃机点火装置的当前限制
公开(公告)号：US5199407A
公开(公告)日：1993-04-06
申请号：US769320
申请日：1991-10-01
申请人： Nobuyuki Sawazaki , Masaaki Taruya , Mitsuru Koiwa
发明人： Nobuyuki Sawazaki , Masaaki Taruya , Mitsuru Koiwa
IPC分类号： F02B1/04 , F02P3/05
CPC分类号： F02P3/051 , F02B1/04
摘要： A current limiter in an ignition apparatus for an internal combustion engine including a differential amplifier 20 is able to limit a primary winding current of an ignition coil to a prescribed limit value which is independent of a voltage as sensed by a current sensing resistor 11, thus providing a highly stable operating characteristic. The factor of current amplification of the differential amplifier can be increased without accompanying oscillations of the current limiter. The current sensing resistor senses a voltage corresponding to a current flowing from the primary winding of the ignition coil to a power transistor 4 which turns on and off the power supply to the ignition coil. A reference voltage source 12 generates a reference voltage for comparison with the voltage sensed by the current sensing resistor. A differential amplifier absorbs a part of a base current supplied from a storage battery to a base of the power transistor on the basis of a difference between the reference voltage and the voltage sensed by the current sensing resistor. A plurality of output transistors 25, 102 are coupled to form a Darlington circuit which is connected between the differential amplifier and the base of the power transistor. Another reference voltage source 12" may be provided for generating a second reference voltage, the second reference voltage source being connected between the current sensing resistor and the second input terminal of the differential amplifier for supplying thereto a total sum of the voltage sensed by the current sensing resistor and the second reference voltage.
摘要翻译：在具有差分放大器20的内燃机用点火装置中的限流器能够将点火线圈的初级绕组电流限制为与由电流检测电阻器11感测到的电压无关的规定极限值，因此提供高度稳定的工作特性。差分放大器的电流放大因子可以增加，而不伴随限流器的振荡。电流感测电阻器检测对应于从点火线圈的初级绕组流过的电流的电压到接通和断开对点火线圈的电源的功率晶体管4。参考电压源12产生用于与由电流感测电阻器感测的电压进行比较的参考电压。差分放大器基于参考电压和由电流感测电阻感测的电压之间的差异，吸收从蓄电池提供给功率晶体管的基极的一部分基极电流。多个输出晶体管25,102被耦合以形成连接在功率晶体管的差分放大器和基极之间的达林顿电路。可以提供另一参考电压源12“用于产生第二参考电压，第二参考电压源连接在差动放大器的电流检测电阻和第二输入端之间，用于向其提供由电流检测电阻和第二参考电压。

9. 发明授权

US07295093B2 Internal combustion engine ignition coil apparatus 有权
标题翻译：内燃机点火线圈装置
公开(公告)号：US07295093B2
公开(公告)日：2007-11-13
申请号：US11246068
申请日：2005-10-11
申请人： Tomokazu Umezaki , Nobuyuki Sawazaki
发明人： Tomokazu Umezaki , Nobuyuki Sawazaki
IPC分类号： H01F27/29
CPC分类号： H01T13/44 , H01F27/04 , H01F38/12
摘要： An internal combustion engine ignition coil apparatus includes: a case; a center core disposed in the case; a primary coil and a secondary coil disposed outside the center core inside the case; a high-voltage cord having: a first end portion electrically connected to the secondary coil; and a second end portion electrically connected to a spark plug; and a protective tube covering an outer peripheral surface of the high-voltage cord, a rim portion projecting away from a high-voltage terminal being formed so as to surround an insertion aperture in a bottom portion of the case, and a leading end portion of the protective tube covering and elastically engaging with the rim portion, wherein: a receiving portion having a radially-outwardly-projecting V-shaped cross-sectional shape when sectioned axially is formed on an end portion of the rim portion.
摘要翻译：内燃机点火线圈装置包括：壳体; 设置在壳体中的中心芯; 初级线圈和次级线圈，其设置在壳体内的中心芯之外; 高压线，其具有：电连接到所述次级线圈的第一端部; 和电连接到火花塞的第二端部; 以及覆盖所述高电压线的外周面的保护管，从形成为围绕所述壳体的底部的插入孔的高压端子突出的边缘部，以及所述保护管覆盖并与所述边缘部分弹性接合，其中：在所述边缘部分的端部上形成有沿轴向切割时具有径向向外突出的V形横截面形状的接收部分。

10. 发明授权

US07196606B2 Ignition coil apparatus for an internal combustion engine 有权
标题翻译：内燃机用点火线圈装置
公开(公告)号：US07196606B2
公开(公告)日：2007-03-27
申请号：US11222940
申请日：2005-09-12
申请人： Nobuyuki Sawazaki , Tomokazu Umezaki
发明人： Nobuyuki Sawazaki , Tomokazu Umezaki
IPC分类号： H01F27/02
CPC分类号： H01F38/12 , H01F27/2828 , H01F41/10
摘要： An ignition coil apparatus for an internal combustion engine can suppress an increase in the manufacturing cost of a terminal of a low-tension side connector resulting from variation in a wire diameter of an one end of a primary winding, and can ensure a stable fusing state. The positive terminal side fusing portion is composed of a planar portion and a turned portion that is inversely turned back from the planar portion to cooperate therewith to clamp a winding start conductor portion. A first bent portion of a radius of curvature R is formed at a base end portion of the turned portion. A second bent portion with its tip end tilted toward a planar portion is formed at an intermediate portion of the turned portion.
摘要翻译：一种用于内燃机的点火线圈装置可以抑制由于初级绕组的一端的线径的变化导致的低压侧连接器的端子的制造成本的增加，并且可以确保稳定的熔合状态。正极侧侧熔合部由平面部和从平面部反向反转的转动部构成，以与其配合以夹紧绕线起始导体部。曲率半径R的第一弯曲部分形成在转动部分的基端部分。在转向部分的中间部分处形成有其顶端朝向平坦部分倾斜的第二弯曲部分。

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