专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

71. 发明专利

JPS58214660A Flow controller and fuel injection control system of internal-combustion engine 失效
标题翻译：内燃机流量控制器和燃油喷射控制系统
公开(公告)号：JPS58214660A
公开(公告)日：1983-12-13
申请号：JP9903182
申请日：1982-06-08
申请人： Nippon Soken Inc
发明人： ITOU TOSHIHIKO , SAKAKIBARA YASUYUKI , YOSHINAGA TOORU , ABE MASAYUKI , WATANABE KAZUHIDE
IPC分类号： F02M47/00 , F02B3/06 , F02D1/02 , F02M41/12 , F02M45/00 , F02M55/02 , F02M59/10 , F02M59/36
CPC分类号： F02M59/105 , F02B3/06 , F02M41/125 , F02M59/36 , F02M59/366
摘要： PURPOSE:To improve measuring accuracy of a fuel amount, by compartibly displaying both a finely adjusting function and a high speed relief function through electric and hydraulic opening and closing valves further utilizing inertia of the hydraulic opening and closing valve at high speed relief time. CONSTITUTION:If a plunger 11 is moved rightward, supply of fuel is started to a high pressure line 18, and this fuel is relieved to a drain line 71 by a flow controller 8. Then an electric opening and closing valve 81 is closed, and oil pressure in the line 18 is rapidly increased and utilized for a servo piston device 4, then fuel is injected from an injection nozzle 2. And then if the valve 81 is opened, a spool 822 of a hydraulic opening and closing valve 82 is lifted, at a stroke, and the oil pressure in the line 18 is relieved, then a servo piston 41 and a plunger piston 42 are stopped lowering while started lifting, consequently the nozzle 2 stops fuel injection.
摘要翻译：目的：为了提高燃油量的测量精度，通过电动液压开关阀和高速度释放功能，通过在高速缓解时间进一步利用液压开闭阀的惯性，可以同时显示出精确调节功能和高速度释放功能。构成：如果柱塞11向右移动，则向高压管线18开始供给燃料，通过流量控制器8将该燃料释放到排出管路71上。然后关闭电动开关阀81，线18中的油压快速增加并用于伺服活塞装置4，然后从注射喷嘴2喷射燃料。然后如果阀81打开，液压开闭阀82的阀芯822被提升在行程中，线路18中的油压被释放，然后伺服活塞41和柱塞活塞42在开始提升时停止下降，因此喷嘴2停止燃料喷射。

72. 发明专利

JPS58152986A PIEZO-ELECTRIC VALVE DEVICE 失效
公开(公告)号：JPS58152986A
公开(公告)日：1983-09-10
申请号：JP3377882
申请日：1982-03-05
申请人： NIPPON SOKEN
发明人： ITOU TOSHIHIKO , SAKAKIBARA YASUYUKI , YOSHINAGA TOORU , ABE MASAYUKI , WATANABE KAZUHIDE
IPC分类号： F16K17/04 , F02M59/36 , F02M59/46 , F02M63/00 , F16K31/02
摘要： PURPOSE:To eliminate the bad influences of a question brought out when supporting a valve with metal instead of oil as in a usual technique on the dimensional accuracy of a device at its assembling and the thermal strain of a casing by allowing a piezo-electric body to drive one end of a valve body as well as to support the other end of the valve body with hydraulic pressure while utilizing the extension force of the piezo-electric body when turning on electricity. CONSTITUTION:When a piezo-electric body 7 is turned on, the body 7 stretches in the axial direction in response to the magnitude of its applied voltage. This stretching force acts in the vertical direction, and when it comes to stretch in the upper direction, fuel oil within a hydraulic chamber formed on the top of a piston upper 5 is required to be discharged outward. But, a steel ball 92 blocks up a stop 93 at this instant, preventing the movement of the piston upper 5 in the upper direction. Accordingly, a piston lower 6 moves downward, allowing its projection 63 to force down the valve body 8. In such a situation, high pressure fuel is leaked via a groove 82 because a ring-shaped groove 24 is opened in its lower part.

73. 发明专利

JPS58152161A CONTROLLING DEVICE OF FUEL INJECTION 失效
公开(公告)号：JPS58152161A
公开(公告)日：1983-09-09
申请号：JP3377782
申请日：1982-03-05
申请人： NIPPON SOKEN
发明人： ITOU TOSHIHIKO , SAKAKIBARA YASUYUKI , YOSHINAGA TOORU , ABE MASAYUKI , WATANABE KAZUHIDE
IPC分类号： F02D41/40 , F02M45/00 , F02M51/00
摘要： PURPOSE:To enable to obtain optional injection pattern by a structure wherein a control valve to relieve oil pressure is allowed to be able to control a plurality of times during a single fuel injection. CONSTITUTION:A piezo-electric type valve unit 1 is provided in the midway of a high pressure fuel line connecting a high pressure injection pump 10 with an injection nozzle 11. When piezoids 7 are energized, the piezoids 7 elongates themselves axially in proportion to the magnitude of voltge applied to them, resulting in shifting a lower piston 6 downward and pushing down a valve body 8 by means of the projection 63 of the lower piston 6. Under the state just mentioned above, an annular groove 24 is slightly open at its lower part, resulting in leaking the high pressure fuel in the annular groove 24 through the chamber 84 and the groove 83 of the valve body 8. Because the leakage quantity varies with the valve opening lift of the vlave body 8, which also varies with the voltage applied to the piezoids 7, the applied voltage to the piezoids 7 controls the pressure of the fuel applied from the high pressure injection pump 10 to the nozzle 11.

74. 发明专利

JPS5842903A DETECTOR FOR STROKE OF INTERNAL COMBUSTION ENGINE CYLINDER 失效
公开(公告)号：JPS5842903A
公开(公告)日：1983-03-12
申请号：JP13976481
申请日：1981-09-07
申请人： NIPPON SOKEN
发明人： SAKAKIBARA YASUYUKI , ISOBE TOSHIO
IPC分类号： G01B11/00 , G01D5/26
摘要： PURPOSE:To detect strokes of internal combustion engine cylinders with high reliability through relatively simple constitution by detecting positions of the rotor for distribution of a distributor through optical fibers. CONSTITUTION:This detector is equipped with an optical fiber 1 branched into two at one terminal and bundled at the other terminal, a light source 2 opposed to one opening part 11 of the fiber 1, a photodetection part 3 opposed to the other opening part 12 of the fiber 1, and a circuit 4 for shaping a photodetection output. Then, the opening part 13 of the fiber 1 is opposed to the rotor 5 for distribution in the distributor of a four-cycle engine, detecting positions of the rotor 5.

75. 发明专利

JPS5234773A APPARATUS FOR INDICATING ACCELERATION AND DECELERATION OF SPEEDS 失效
公开(公告)号：JPS5234773A
公开(公告)日：1977-03-16
申请号：JP11106575
申请日：1975-09-12
申请人： NIPPON SOKEN
发明人： KUNO AKIRA , SAKAKIBARA YASUYUKI
IPC分类号： B60Q1/44 , B60Q1/26 , G01P15/00 , G01P15/16
摘要： PURPOSE:An apparatus for indication of accelerating and decelerating speeds by dividing time continuously with a fixed time as a unit, and calculating the deviations in running speed of the section of the ith place and the section of the (i+1) th place according to polarity and magnitude, and further indicating the results individually.

76. 发明专利

JPS5229264A DEVICE FOR ALARMING RAPID ACCELLERATION OR DECELERATION 失效
公开(公告)号：JPS5229264A
公开(公告)日：1977-03-04
申请号：JP10524875
申请日：1975-08-29
申请人： NIPPON SOKEN
发明人： KUNO AKIRA , SAKAKIBARA YASUYUKI
IPC分类号： G01P15/16 , G01P15/00
摘要： PURPOSE:Revolving speeds of wheels of a running vehicle are identified from deviation per fixed unit time and rapid acceleration or deceleration is warned to the driver, whereby the danger by rapid acceleration or deceleration is prevented before it occurs.

77. 发明专利

JP2003227392A PIEZO-ACTUATOR CONTROL DEVICE, PIEZO-ACTUATOR CONTROL METHOD AND FUEL INJECTION CONTROL SYSTEM 审中-公开
公开(公告)号：JP2003227392A
公开(公告)日：2003-08-15
申请号：JP2002025666
申请日：2002-02-01
申请人： NIPPON SOKEN , DENSO CORP
发明人： FUKAGAWA YASUHIRO , SAKAKIBARA YASUYUKI , TAKEMOTO HIDETSUGU
IPC分类号： F02M45/02 , F02D41/20 , F02D41/38 , F02D41/40 , F02M47/00 , F02M51/00 , F02M51/06 , H01L41/04 , H01L41/083 , H01L41/09
摘要： PROBLEM TO BE SOLVED: To provide a piezo-actuator control device and a piezo-actuator control method in which an energy of piezo-stack is retained at constant even in the case where the piezo-stack is switched to charging during discharging. SOLUTION: A voltage of the piezo-stack 51 is compared with a voltage memorized in a sample hold circuit 75 by a comparison circuit and when the voltage of the piezo-stack 51 arrives at the voltage memorized in the sample hold circuit 75, a control circuit 70 finishes a charge stage of the piezo-stack 51. Thereby, an energy charged in the piezo-stack 51 can be equalized to the energy charged before discharging. When the charge stage of the piezo-stack 51 is finished by the control circuit 70, the voltage of the piezo-stack 51 is controlled to approximately the same as that at the time of former injection. If an electrostatic capacity of the piezo-stack 51 is equal, an electric energy charged in the piezo-stack 51 can be also equalized. COPYRIGHT: (C)2003,JPO

78. 发明专利

JP2003134851A PIEZO-ACTUATOR DRIVE CIRCUIT 审中-公开
公开(公告)号：JP2003134851A
公开(公告)日：2003-05-09
申请号：JP2001323407
申请日：2001-10-22
申请人： NIPPON SOKEN , DENSO CORP
发明人： FUKAGAWA YASUHIRO , SAKAKIBARA YASUYUKI , NARUSE HIDEO
IPC分类号： F02M51/00 , F02M51/06 , H01L41/083 , H02N2/00
摘要： PROBLEM TO BE SOLVED: To simplify configuration of a piezo-actuator drive circuit, and to separately set the charging speed and the discharging speed of piezo-actuators. SOLUTION: The piezo-actuator drive circuit is provided with a capacitor 23 for storing the electrical energy for driving the piezo-actuators, and a coil 30 for charging/discharging connected in series with the capacitor 23. When charged or discharged, the piezo-actuators 11 to 14 are charged from or discharged to the capacitor 23 through the coil 30 for charging/discharging, coil 30 for charging/discharging is constituted of coils in two different systems having different inductances, and the inductance is changed in charging and in discharging.

79. 发明专利

JP2003116287A PIEZOACTUATOR DRIVE CIRCUIT 审中-公开
公开(公告)号：JP2003116287A
公开(公告)日：2003-04-18
申请号：JP2001309498
申请日：2001-10-05
申请人： DENSO CORP , NIPPON SOKEN
发明人： ITO TOSHIHIKO , FUKAGAWA YASUHIRO , SAKAKIBARA YASUYUKI
IPC分类号： F02M51/00 , F02D41/20 , F02M51/06 , H01L41/083 , H02N2/00
摘要： PROBLEM TO BE SOLVED: To simplify the circuitry of a piezoactuator drive circuit for supplying energy stored in a capacitive element to a piezostack mounted on a piezoactuator through an energy relay means. SOLUTION: Without providing any extra capacitive element, each piezostack P1 -P4 is precharged with energy lower than a specified level capable of bringing each piezostack P1 -P4 into a specified operating state with the total energy of all piezostacks P1 -P4 exceeding a specified value. At the time of operation, switching elements SH1 -SH4 are turned on to discharge energy held in the piezostacks P1 -P4 to an energy relay means 22. Subsequently, the switching elements SH1 -SH4 are turned off and a switching element SL1 is turned on to discharge energy held in the energy relay means 22 to the piezostack P1 being operated.

80. 发明专利

JP2002159190A PIEZOACTUATOR DRIVE CIRCUIT 失效
公开(公告)号：JP2002159190A
公开(公告)日：2002-05-31
申请号：JP2000352183
申请日：2000-11-20
申请人： NIPPON SOKEN , DENSO CORP
发明人： FUKAGAWA YASUHIRO , MORITSUGU MICHIYASU , SAKAKIBARA YASUYUKI , NARUSE HIDEO
IPC分类号： H01L41/083 , H02N2/00
摘要： PROBLEM TO BE SOLVED: To control energy supply to a piezostack with high accuracy. SOLUTION: In a multi-switching system circuit provided, in the charging path from a buffer capacitor 113 to a piezostack 2A, with a switching element 14 turning on/off repeatedly, a diode 17 connecting the output end of an inductor 13 with the positive pole of the buffer capacitor 113 is provided to bias the voltage across the buffer capacitor 113 reversely. When the piezostack voltage reaches a target level, the switching element 14 is locked in off state and a switching element 16A is turned off so that a flywheel current generated by energy stored in the inductor 13 is collected to the buffer capacitor 113 not through the piezostack 2A but through the diode 17 thus preventing the piezostack voltage from increasing after the switching element 14 is locked in off state.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式