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61. 发明专利

JPH06280711A FUEL INJECTION VALVE 失效
公开(公告)号：JPH06280711A
公开(公告)日：1994-10-04
申请号：JP8931793
申请日：1993-03-24
申请人： NIPPON SOKEN , TOYOTA MOTOR CORP
发明人： TSUZUKI SACHIHIRO , ITO TOSHIHIKO , SAKAKIBARA YASUYUKI , WATANABE KAZUHIDE , KATO TAKEHIKO , TOMOTA AKITOSHI
IPC分类号： F02M47/00 , F02M47/06 , F02M51/06 , F02M63/00 , H01L41/09 , H02N2/02
摘要： PURPOSE:To improve a fuel injection characteristic by preventing generation of secondary injection by a simple structure. CONSTITUTION:A device has an electrostrictive actuator 1 extended/contracted by electrification, piston member 2 advanced/reversed integrally with this actuator, pressure change chamber 31 sealed with operating fluid to be boosted at the time of advancing the piston member 2, back pressure chamber 61 communicating with the pressure change chamber 31 to have a diameter smaller than this pressure change chamber and a needle valve 5 with the base end appearing in the back pressure chamber 61 to advance in accordance with a pressure rise of the back pressure chamber 61 and to close a fuel injection valve 81. In the piston member 2, by protruding a lower surface center part at its advance time, a throttle flow path 21 is formed in series to a communication flow path 62 of connecting the pressure change chamber 31 and the back pressure chamber 61. Since circulating resistance is increased, transmitting a pressure pulsation from the back pressure chamber 61 to the pressure change chamber 31 is suppressed, and since the pressure pulsation is prevented from being amplified by the piston member 2, retracting the needle valve 5 is restricted.

62. 发明专利

JP2011231699A Internal combustion engine with supercharger 审中-公开
标题翻译：内燃机与超级加油机
公开(公告)号：JP2011231699A
公开(公告)日：2011-11-17
申请号：JP2010103348
申请日：2010-04-28
申请人： Nippon Soken Inc , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社日本自動車部品総合研究所
发明人： KATO TAKEHIKO , MIYASHITA SHIGEKI
IPC分类号： F02D13/02 , F02B37/00 , F02B37/02 , F02D23/00
CPC分类号： Y02T10/144
摘要： PROBLEM TO BE SOLVED: To effectively perform scavenging of residual gas in a cylinder while preventing fresh air from blowing by for an internal combustion engine with a supercharger.SOLUTION: The internal combustion engine with the supercharger includes a first exhaust valve EX1 for opening/closing a first exhaust passage 34 that leads to a turbine 24b, and a second exhaust valve EX2 for opening/closing a second exhaust passage 36 that does not lead to the turbine 24b. The timing to close the second exhaust valve EX2 is set to be later than the timing to close the first exhaust valve EX1. A valve overlap period in which the valve open period of the second exhaust valve EX2 overlaps each valve open period of a first intake valve IN1 and a second intake valve IN2 is set. The timing to open the second intake valve IN2 provided at position closer to the second exhaust valve EX2 than the first intake valve IN1 is set to be later than the timing to open the first intake valve IN1.
摘要翻译：要解决的问题：为了有效地执行气缸中的残余气体的清除，同时防止用增压器对内燃机进行新鲜空气吹送。解决方案：具有增压器的内燃机包括用于打开/关闭通向涡轮24b的第一排气通道34的第一排气阀EX1和用于打开/关闭第二排气通道36的第二排气阀EX2，不会导致涡轮机24b。关闭第二排气门EX2的时间被设定为比关闭第一排气阀EX1的时间晚。设定第二排气门EX2的阀打开期间与第一进气阀IN1和第二进气阀IN2的各阀打开期间重叠的阀重叠期间。设置在比第一进气阀IN1更靠近第二排气阀EX2的位置处设置的第二进气阀IN2的定时被设定为比打开第一进气门IN1的时间晚。版权所有（C）2012，JPO＆INPIT

63. 发明专利

JPH11297454A IGNITION PLUG, AND SPARK IGNITION DEVICE 失效
公开(公告)号：JPH11297454A
公开(公告)日：1999-10-29
申请号：JP9899298
申请日：1998-04-10
申请人： NIPPON SOKEN
发明人： YORITA HIROSHI , KOHAMA TOKIO , YOSHINAGA TORU , TAKEYAMA MASAKI , IKEDA MASATOSHI , KATO TAKEHIKO
IPC分类号： F02P15/08 , H01T13/20 , H01T13/46
摘要： PROBLEM TO BE SOLVED: To improve the ignitability of fuel-mixed gas. SOLUTION: For this spark plug 1 the support for an insulator 3 and installation of a spark plug 1 onto an engine E are performed by a metal casing 2, and that a center electrode 4 and the metal casing 2 are insulated from each other by the insulator 3. Grounding electrodes 5a, 5b are provided at 180 deg. facing opposite positions to each other on both sides of the center electrode 4, and they comprise metals having heat resistance, corrosion resistance, and conductivity. For the two grounding electrodes 5a, 5b, the outer surface of one grounding electrode 5a forms a metal exposed part. An outer surface of the other grounding electrode 5b is coated with a semiconductor layer 6. The semiconductor layer 6 composes an electron emitting part for emitting free electrons as a voltage is applied to the spark plug 1. In this case, a power source 10 for ignition alternately changes voltage polarity to positive and negative by alternately repeating discharge on the grounding electrode 5a side and discharge on the grounding electrode 5b side.

64. 发明专利

JPH11173243A FUEL INJECTION VALVE OF INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH11173243A
公开(公告)日：1999-06-29
申请号：JP33583997
申请日：1997-12-05
申请人： NIPPON SOKEN
发明人： KATO TAKEHIKO , MATSUOKA HIROSHIGE , SEKIGUCHI KIYONORI
IPC分类号： F02M47/00 , F02M51/06 , F02M61/10
摘要： PROBLEM TO BE SOLVED: To satisfactorily control the timing of a needle starting to rise and injection starting, or the injection rate rising time with regard to a fuel injection valve used for an internal combustion engine. SOLUTION: A delicate control of lifting becomes incapable because although cylinder internal pressure is actuating on a sack 16 when a valve is closed but, when a needle 10 rises by any amount, high pressure fuel in an oil bank 15 flows into the sack 16 and suddenly pushes up the needle 10 by the increase of up load. Accordingly, the bottom 66 of a rod 60 on the lower part of a sliding shaft 62 receiving fuel supply pressure on its upper surface is provided by opposing it to the top face 18 of the needle 10. Because the sliding shaft 62 is limited of its downward movement range by the engagement of a step 64 with a stopper surface 65, a gap equivalent from several percent to ten or more percent of the full lifting amount of the needle 10 is formed between the bottom 66 and the top face 18. The needle 10 becomes controllable as the rising speed slows down because the downward load acting upon the sliding shaft 62 offsets the increased up load.

65. 发明专利

JPH10288113A FUEL INJECTION VALVE 失效
公开(公告)号：JPH10288113A
公开(公告)日：1998-10-27
申请号：JP11188497
申请日：1997-04-14
申请人： NIPPON SOKEN
发明人： MATSUOKA HIROSHIGE , KATO TAKEHIKO
IPC分类号： F02M47/00 , F02M47/02
摘要： PROBLEM TO BE SOLVED: To inject the fuel in a short injection period with good responsiveness without setting the fuel pressure high in a fuel injection valve. SOLUTION: A fuel injection valve is provided with an accumulator chamber 201a for holding temporarily the fuel sent forcedly, while the communication and interruption between a fuel flow passage 101a through which the fuel is sent out, and a nozzle hole 102 are switched from one to the other by a valve needle 14. The accumulator chamber 201a is provided with an actuator 27, which expands/contracts the volume of the accumulator chamber 201a, and the actuator 27 is set so that the volume of the accumulator camber 201a contracts when the valve is opened. When the volume of the accumulator chamber 201a contracts following the opening of the valve, a pressure wave reaches from the accumulator chamber 201a to the fuel flow passage 101a instantaneously, and a flow of the fuel is formed quickly in the fuel flow passage 101a, so that the pressurized fuel is injected with good responsiveness, without setting the fuel pressure high. Thus, owing to the injection of pressurized fuel, the fuel injection period can be shortened.

66. 发明专利

JPH09236063A FUEL INJECTION CONTROL VALVE 失效
公开(公告)号：JPH09236063A
公开(公告)日：1997-09-09
申请号：JP4315396
申请日：1996-02-29
申请人： NIPPON SOKEN
发明人： MATSUOKA HIROSHIGE , KATO TAKEHIKO
IPC分类号： F02M51/06
摘要： PROBLEM TO BE SOLVED: To provide a fuel injection control valve by which fuel oil is prevented from being penetrated into a pump chamber when a valve is opened, by certain ly closing the ejection opening of a distance piece by the upper end formed in a curved surface of a nozzle needle when an ejection opening is opened. SOLUTION: When an electrostrictive actuator 2 is shrunk when fuel injection is started, a pump chamber 28 is enlarged so as to generate negative pressure. Hereupon, a nozzle needle 3 is lifted so that fuel is ejected from a jet opening 26. While the ejection opening is closed, the upper end spherical surface 33 of the nozzle needle 3 is automatically aligned toward the ejection opening 27 of a distance piece 1, and tightly stuck to the ejection opening 27 so as to close the ejection opening 27. Therefore, the ejection opening 27 is easily sealed so that fuel oil is certainly prevented from being penetrated into the pump chamber 28 while the jet opening 26 is opened.

67. 发明专利

JPH09236061A FUEL INJECTION VALVE 失效
公开(公告)号：JPH09236061A
公开(公告)日：1997-09-09
申请号：JP4098396
申请日：1996-02-28
申请人： NIPPON SOKEN
发明人： KATO TAKEHIKO
IPC分类号： F02M47/00 , F02M51/06 , F02M61/16 , F02M61/20
摘要： PROBLEM TO BE SOLVED: To provide an electrostrictive fuel injection valve which can lower a lift rate without the necessity of compensation corresponding to a collision vibration for a needle lift amount, can reduce the displacement amount of an actuator, and can reduce power consumption. SOLUTION: In a fuel injection valve which ejects and stops fuel by driving a piston 2 by an electrostrictive actuator 29 so that pressure in a back pressure chamber 11 is changed and a needle 19 is vertically moved, a floating plate 13 which has a hole 14 in its center, has an appropriate clearance in a center shaft direction, and is brought in contact with a nozzle casing seal surface 16, is arranged to be opposed to a needle top surface 18. A first spring 8 is passed through the hole of the floating plate 13 so as to energize the needle top surface 18, and at the same time, a second spring 10 is inserted in the periphery of the first spring 8 so that the end surface of the floating plate 13 is energized in the same direction as the first spring 8, thereby, the floating plate 13 is made to serve as a damper when the needle 19 is collided with the floating plate 13.

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