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121. 发明专利

JPH0299758A FUEL FEEDING DEVICE 失效
公开(公告)号：JPH0299758A
公开(公告)日：1990-04-11
申请号：JP25182288
申请日：1988-10-07
申请人： HITACHI LTD
发明人： NOGI TOSHIJI , OYAMA TAKASHIGE , KUROIWA HIROSHI , KASHIWATANI MINEO
IPC分类号： F02M61/18 , F02M51/08 , F02M69/04
摘要： PURPOSE:To obtain the uniform mixed gas and improve the responsiveness of fuel by forming branched holes on the downstream side of an injection mist forming means and setting the spread angle of the injection mist larger than the spread angle of a branched hole partitioning wall. CONSTITUTION:An adapter 2 for dividing the fuel injection mists into two injection mist streams is fitted at the top edge of a pistol type electromagnetic type fuel injection valve 1. Two branching holes 3 are formed through a partitioning wall 2a at the center of the adapter 2. If the angle theta2 of the conical body of a needle valve 4 and the angle theta1 of the partitioning wall 2a in the branched passage are set so that the relation theta1

122. 发明专利

JPH0299745A CONTROLLER AND ANOMALY DIAGNOSING DEVICE FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH0299745A
公开(公告)日：1990-04-11
申请号：JP25182588
申请日：1988-10-07
申请人： HITACHI LTD
发明人： OYAMA TAKASHIGE , KUROIWA HIROSHI
IPC分类号： F02D41/04 , F02D41/14 , F02D41/22 , F02D45/00
摘要： PURPOSE:To form the proper mixed gas at a low temperature by determining the parameters of a compensating means on the basis of the output information of the first detecting means for accelerating speed, etc. and the second detecting means for air-fuel ratio so that the difference from a set aimed value reduces. CONSTITUTION:An aimed value setting means 6 receives the stepping-ON quantity of an accelerator pedal and sets an aimed torque and air-fuel ratio, and calculates the aimed values x1 and x2 and outputs them. Though the deterioration of the responsiveness accompanied with the delay of supply is prevented by adding the compensating means 4 and 5, the compensation fuel is applied with the influences of the distillation characteristic, temperature of cylinder, etc., and the torque of an engine 1, the value such as accelerating speed related to the torque, and the air-fuel ratio are detected by the first and second detecting means 7 and 8, and the parameters of the compensating means 4 and 5, i.e., the parameters such as the vaporization performance of the fuel and the temperature of the cylinder which are related to the optimization of the mixed gas in the cylinder are determined by a parameter setting means 9 on the basis of these detected values. Therefore, even during the low temperature operation or warming operation in which temperature changes each time, the optimization of the mixed gas in the cylinder can be secured.

123. 发明专利

JPH01247740A DETECTING DEVICE FOR LOCAL AIR-FUEL RATIO 失效
公开(公告)号：JPH01247740A
公开(公告)日：1989-10-03
申请号：JP7213488
申请日：1988-03-28
申请人： HITACHI LTD
发明人： KUROIWA HIROSHI , OYAMA TAKASHIGE
IPC分类号： G01M15/04 , F02D41/00 , F02D41/14 , F02D45/00 , G01M15/00
摘要： PURPOSE:To make it possible to accurately detect a local air-fuel ratio in proximity to an ignition plug in a combustion chamber by detecting applied discharge voltage to the ignition plug and jump spark light of the ignition plug, and by calculating the air-fuel ratio from these detected results. CONSTITUTION:A combustion light detecting end 1 integrated with an ignition plug is provided in an engine 2, and spark light and combustion light are converted to electric signals by introducing the lights from this detecting end 1 into a photoelectric converter 4 through an optical fiber cable 3. This converted electric signal is input into a control unit 5 accompanied with an output signal from a discharge voltage detector 7 which detects discharge voltage at the ignition plug. Fuel injection timing of an injector 8 is controlled by calculating local air-fuel ratio in proximity to the ignition plug based on both signals. This detecting end 1 is constructed by inserting a light guide 9 made from fused quartz fiber and the like, so as to penetrate a center axis of a center electrode 10 and a high tension terminal 11 of the ignition plug.

124. 发明专利

JPS63302163A LEAN BURN CONTROL DEVICE 失效
公开(公告)号：JPS63302163A
公开(公告)日：1988-12-09
申请号：JP13807187
申请日：1987-06-03
申请人： HITACHI LTD
发明人： KUROIWA HIROSHI , OYAMA TAKASHIGE , NOGI TOSHIJI
IPC分类号： F02D41/14 , F02D41/00 , F02D43/00 , F02P5/15
摘要： PURPOSE:To enable pertinent control at all times regardless of a secular change and the like by so controlling the air-fuel ratio and ignition timing of an engine respectively as to be within an allowable stable combustion range determined depending upon the misfire condition of the engine and NOx concentration. CONSTITUTION:Each detected signal from a detector 7 for detecting the misfire condition of an engine 6 and another detector 8 for detecting the concentration of NOx exhausted from the engine 6 is inputted respectively to a digital operation device 9. Also, the air-fuel ratio signal A/F of a mixture fed to the engine 6 and an ignition timing signal Advx is inputted respectively to the digital operation device 9. And in this device 9, an ordinary operation mode 10 or a correction operation mode 11 is selected on the basis of each inputted signal, and either mode is executed. A control signal is thereby outputted to an ignition timing control means 12 and a fuel quantity or air quantity control means 13, and the air-fuel ratio of a mixture and ignition timing are controlled.

125. 发明专利

JPS63724B2 失效
公开(公告)号：JPS63724B2
公开(公告)日：1988-01-08
申请号：JP19029986
申请日：1986-08-13
申请人： HITACHI LTD
发明人： NISHIMURA YUTAKA , KUROIWA HIROSHI , KIRISAWA TADASHI , OOYAMA TAKASHIGE
IPC分类号： G01F1/68 , G01F1/684

126. 发明专利

JPS6236522B2 失效
公开(公告)号：JPS6236522B2
公开(公告)日：1987-08-07
申请号：JP9732480
申请日：1980-07-15
申请人： HITACHI LTD
发明人： NISHIMURA YUTAKA , KIRISAWA TSUKI , KUROIWA HIROSHI , OOSUGA MINORU , OOYAMA TAKASHIGE , MORI YASUNORI
IPC分类号： G01F1/68 , F02D41/18 , F02M69/48 , G01F1/684 , G01F1/698 , G01F5/00 , G01F15/04 , G01P5/12

127. 发明专利

JPS6230295B2 失效
公开(公告)号：JPS6230295B2
公开(公告)日：1987-07-01
申请号：JP21236183
申请日：1983-11-14
申请人： HITACHI LTD
发明人： KUROIWA HIROSHI , OOYAMA TAKASHIGE , SAKAMOTO SHINICHI
IPC分类号： F02D35/00 , F02D41/14

128. 发明专利

JPS6229636B2 失效
公开(公告)号：JPS6229636B2
公开(公告)日：1987-06-26
申请号：JP12581182
申请日：1982-07-21
申请人： HITACHI LTD
发明人： OOYAMA TAKASHIGE , NISHIMURA YUTAKA , KUROIWA HIROSHI , FUJEDA MAMORU , YAMAUCHI TERUO
IPC分类号： F02D41/36 , F02M69/00 , F02M69/46

129. 发明专利

JPS6154416A Flame light detecting device 失效
标题翻译：火焰灯检测装置
公开(公告)号：JPS6154416A
公开(公告)日：1986-03-18
申请号：JP17732384
申请日：1984-08-24
申请人： Hitachi Ltd
发明人： KUROIWA HIROSHI , OOYAMA TAKASHIGE
IPC分类号： G01J1/02 , G01J5/08
CPC分类号： G01J5/0014 , G01J5/0018 , G01J5/0044 , G01J5/04 , G01J5/048 , G01J5/08 , G01J5/0821
摘要： PURPOSE:To improve heat resistance and airtightness with compact constitution by forming a photoconductor of a quartz optical fiber and a many-component optical fiber covered with a metallic pipe, and projecting the input terminal of the quartz optical fiber from a casing to a combustion chamber side. CONSTITUTION:A detector which detects the combustion flame light in the combustion chamber is equipped with a flame light guide-in part 3 having a screw casing 1 and at least one photoconductor 2 which is arranged in the screw casing 1 and transmits the incident frame light, a casing optical fiber 4 which is connected to the photoconductor 2 and arranged outside the screw casing 1, and a flame light detection part 6 having a photoelectric conversion part 5 which is connected to the casing optical fiber 4 and converts the incident transmitted flame light photoelectrically. The photoconductor 2 is formed of the quartz optical fiber 2a which has outer periphery covered with a metallic pipe 8 and the core 2c and clad 3d made of quartz and the many-component optical fiber 2b connected to the output terminal of the quartz optical fiber 2, and the input terminal of the quartz optical fiber 2a is projected from the casing 1 to the combustion chamber side.
摘要翻译：目的：通过形成石英光纤的光电导体和覆盖有金属管的多组分光纤，通过紧凑的结构提高耐热性和气密性，并将石英光纤的输入端从壳体投射到燃烧室侧。构成：检测燃烧室内的燃烧火焰光的检测器配备有具有螺钉壳体1的火焰光导向部3和布置在螺旋壳体1中的至少一个感光体2，并将入射框架光连接到感光体2并配置在螺旋壳体1的外侧的套筒光纤4和具有光电转换部5的火焰光检测部6，该光电转换部5连接到壳体光纤4，并将入射的透射火焰光光电光电导体2由外部被金属管8覆盖的石英光纤2a和由石英构成的芯体2c和包层3d以及与石英光纤2的输出端子连接的多分量光纤2b形成，石英光纤2a的输入端从壳体1突出到燃烧室侧。

130. 发明专利

JPS60249031A DEVICE FOR DETECTING KNOCKING OF IGNITION DEVICE 失效
公开(公告)号：JPS60249031A
公开(公告)日：1985-12-09
申请号：JP10460384
申请日：1984-05-25
申请人： HITACHI LTD
发明人： KUROIWA HIROSHI , OOYAMA TAKASHIGE
IPC分类号： F02P7/03 , F02P5/152 , F02P5/153 , G01L23/22 , G01M15/00 , G01N27/60 , G01N27/68
摘要： PURPOSE:To enable a quick knocking detection having higher accuracy of each cylinder by generating an ion current after impression of high voltage for ignition to an ignition plug and by separating the knocking with the voltage change accompanying ion current. CONSTITUTION:When a cylinder 1 equipped with an ignition plug 15 is in a later stage of compression stroke, a cylinder 4 equipped with an ignition plug 16 becomes in the later stage of air exhaust stroke. When a transistor TR30 is hence operated, an electric current is generated in the direction A2, discharge occurs on plugs 15, 16 and the voltage change accompanying the discharge phenomenon of the plug 15 is remarkably extracted in a voltage detector 43. Next, when an ion current in the direction B2 is flowed to the secondary side of a coil 28 with the operation of TR31 at the time of a point (b), the plug 15 is in a high electric potential and the detector 43 detects remarkably the voltage change accompanied by the discharge phenomenon of the plug 15. In case of the plug 16 similarly as well, the discharge of ignition is taken place with the operation of TR30 by the plug 16 and the operation is made in order that the vibration change of ion current due to the pressure vibration accompanied by the knocking of the cylinder is expressed at the plug 16 with the operation of TR31.

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