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61. 发明专利

JPH045945B2 失效
公开(公告)号：JPH045945B2
公开(公告)日：1992-02-04
申请号：JP5847381
申请日：1981-04-20
申请人： HITACHI LTD
发明人： OOYAMA NOBUSHIGE , NISHIMURA YUTAKA , YAMAUCHI TERUO , KUROIWA HIROSHI , OOSUGA MINORU , KIRISAWA TADASHI
IPC分类号： G01F1/68 , G01F1/692 , G01F15/04 , G01P5/12

62. 发明专利

JPH0291437A FUEL INJECTION SUPPLY DEVICE OF ENGINE 失效
公开(公告)号：JPH0291437A
公开(公告)日：1990-03-30
申请号：JP24125588
申请日：1988-09-27
申请人： NISSAN MOTOR , HITACHI LTD
发明人： IWANO HIROSHI , KUROIWA HIROSHI
IPC分类号： F02D41/06 , F02D41/34
摘要： PURPOSE:To obtain stable starting performance by setting the quantity of reference starting injection fuel allocated to the injector of a throttle valve part to a higher value when the temperature is lower. CONSTITUTION:Injectors 20 and 31 are located at an intake port part 6 and a throttle valve part 2, respectively. A means 34 calculates the reference starting injection quantity TST as the necessary quantity of fuel and a means 35 sets the rate KDISST of the reference starting injection quantity allocated to the injector 31 of the throttle valve part to be higher when the temperature is lower. According to this allocation rate KDISST quantities Tit and Tip of fuel injected from a pair of the injectors 31 and 20 are calculated by a calculating means 36 and 37, respectively and outputted by the means 38 and 29 to related injectors 31 and 20. So when fuel of almost necessary quantity is ejected from the injector 31 of the throttle valve part is ejected with the engine at a low temperature, injected fuel is made finer with the air of air stream flowing around the throttle valve 2 and atomized in an intake manifold 3 to form premixture quickly.

63. 发明专利

JPH0119065B2 失效
公开(公告)号：JPH0119065B2
公开(公告)日：1989-04-10
申请号：JP7819581
申请日：1981-05-22
申请人： HITACHI LTD
发明人： KASHIWATANI MINEO , YAMADA KINSAKU , TANABE YOSHUKI , OOYAMA TAKASHIGE , KUROIWA HIROSHI , TSURUTA NAOTO
IPC分类号： F02D41/34 , F02D3/00 , F02M51/02 , F02M69/00

64. 发明专利

JPS6454318A COMBUSTION LIGHT SENSOR 失效
公开(公告)号：JPS6454318A
公开(公告)日：1989-03-01
申请号：JP21010587
申请日：1987-08-26
申请人： HITACHI LTD
发明人： KUROIWA HIROSHI , OYAMA TAKASHIGE
IPC分类号： G01M15/04 , F02D45/00 , F02P17/00 , F02P17/12 , G01J1/02 , G01M15/00
摘要： PURPOSE:To obtain a stable combustion light signal as well as in premixed combustion even in diffused combustion in an insufficient combustion state by cutting combustion light in the radiation wavelength band of soot in the entire wavelength range of combustion light optically and electrically. CONSTITUTION:The combustion light guide out from a combustion light detection end 3 installed opened in the combustion chamber 2 of an engine 1 is guided to a photoelectric converter 6 in a control unit 5 through an optical fiber cable 4 and converted into an electric signal. Here, the combustion light detected by the detection end 3 is guided to the cable 4 through a connector 15 and guided to the photodetecting element 19 of the converter 6 through a connector 17 and an optical filter 18. This filter 18 in use cuts light in a 700-900nm wavelength band or the element 19 is use has spectral sensitivity characteristics in a 400-700 or >=900nm wavelength band; and a 700-900nm wavelength band is removed to eliminate the influence of radiant light from soot which causes an abnormal signal.

65. 发明专利

JPS63263268A KNOCK CONTROLLER 失效
公开(公告)号：JPS63263268A
公开(公告)日：1988-10-31
申请号：JP9612387
申请日：1987-04-21
申请人： HITACHI LTD
发明人： NOGI TOSHIJI , KUROIWA HIROSHI , OYAMA TAKASHIGE
IPC分类号： F02P5/152 , F02P5/15 , F02P5/153
摘要： PURPOSE:To operate an engine under trace knock condition at all times by providing a detector for detecting temperature variation in a combustion chamber upon occurrence of knocking and a means for correcting ignition timing in the combustion chamber corresponding to the intensity of knocking. CONSTITUTION:A detector 2 for detecting temperature variation in a combustion chamber 1 upon occurrence of knocking is arranged in the combustion chamber 1 of engine. A signal detected through the detector 2 is inputted through a light transmission element 3 to a band pass filter 4. Output terminals of a photoreceptor 5 are connected with input terminals of a shaper circuit 6. An ignition timing correcting means 7 for correcting ignition timing in the combustion chamber based on an output signal from the shaper circuit 6 is provided. Consequently, the engine operates under trace knock condition at all times thus providing a high efficient output.

66. 发明专利

JPS638296B2 失效
公开(公告)号：JPS638296B2
公开(公告)日：1988-02-22
申请号：JP1134980
申请日：1980-01-31
申请人： HITACHI LTD
发明人： NISHIMURA YUTAKA , OOYAMA TAKASHIGE , KUROIWA HIROSHI , OOSUGA MINORU
IPC分类号： F02D41/18 , F02D33/00 , F02D35/00 , F02D41/04 , F02D45/00 , F02P5/06 , F02P5/15

67. 发明专利

JPS62284223A COMBUSTION SENSOR 失效
公开(公告)号：JPS62284223A
公开(公告)日：1987-12-10
申请号：JP12575786
申请日：1986-06-02
申请人： HITACHI LTD
发明人： KUROIWA HIROSHI , OOYAMA TAKASHIGE
IPC分类号： G01J1/42
摘要： PURPOSE:To obtain a combustion light signal which is not affected by dirt at any time by entering external reference light into a combustion flame light detection window part and detecting the quantity of the reflected light of the reference light which varies with the amount of dirt sticking on the surface of the window part. CONSTITUTION:When there is no matter sticking, light If is introduced from combustion light if. When there is sticking matter, the transmissivity to the combustion light if decreases and such light that light I'f

68. 发明专利

JPS6248055B2 失效
公开(公告)号：JPS6248055B2
公开(公告)日：1987-10-12
申请号：JP2044880
申请日：1980-02-22
申请人： HITACHI LTD
发明人： KUROIWA HIROSHI , OOYAMA TAKASHIGE , OOSUGA MINORU , NISHIMURA YUTAKA
IPC分类号： F02D41/34 , F02D41/22 , F02D45/00 , F02M69/00

69. 发明专利

JPS6233528B2 失效
公开(公告)号：JPS6233528B2
公开(公告)日：1987-07-21
申请号：JP9472579
申请日：1979-07-24
申请人： HITACHI LTD
发明人： NISHIMURA YUTAKA , KUROIWA HIROSHI , KIRISAWA TADASHI , OOYAMA TAKASHIGE
IPC分类号： G01F1/68 , G01F1/684 , G01F1/69 , G01F1/698 , G01F5/00

70. 发明专利

JPS62159014A OPTICAL PULSE CURRENT METER 失效
公开(公告)号：JPS62159014A
公开(公告)日：1987-07-15
申请号：JP62286
申请日：1986-01-08
申请人： HITACHI LTD
发明人： KUROIWA HIROSHI , OOYAMA TAKASHIGE
IPC分类号： G01P5/10 , G01F1/708 , G01P5/18
摘要： PURPOSE:To dissolve a difficult point for a practical use such as a disconnection of a wire, a fact that an electric noise is apt to be superposed, etc., by raising optically a local temperature of a fluid, and detecting its movement to a downstream in the pipe by an optical temperature detecting device. CONSTITUTION:A heating device 2 and a detecting device 3 are provided on an upstream of a pipe 1 and a downstream, respectively, and they are connected to a control device 4. In this state, a light beam of a light source 5 which is controlled by the device 4 is condensed to a heating part A, and heats a liquid of this part. Also, an optical energy of a detecting part B goes into a photodetector 10 through a condensing device 8 and a fiber 9. Accordingly, when the fluid which has been heated by the heating part A passes through the detecting part B, an output signal of the photodetector 10 is varied. The device 4 is constituted of a clock counter, etc., and when counting is started at the time point when the light source 5 has been lighted, and counting is stopped at the time point when a signal of the photodetector 10 has been varied, the time when the fluid which has been heated by the heating part A reaches the detecting part B can be measured. Therefore, since a distance 1 between the point A and the point B is known, a flow velocity of the fluid is derived by an operation of the device 4 is derived.

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