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41. 发明专利

JPS58128464A FUEL INJECTION CONTROL DEVICE OF INTERNAL-COMBUSTION ENGINE 失效
公开(公告)号：JPS58128464A
公开(公告)日：1983-08-01
申请号：JP1018982
申请日：1982-01-27
申请人： NIPPON SOKEN
发明人： SEKIGUCHI KIYONORI , KAWAI HISASHI , ITOU TOSHIHIKO , TANAKA TAKESHI , YOSHINAGA TOORU , ABE MASAYUKI
IPC分类号： F02M51/00 , F02M51/06 , F02M63/00
摘要： PURPOSE:To make it possible to arbitrarily control the injection amount, timing and pattern of fuel in response to an operating condition by providing a fuel relief valve, actuating an injection nozzle with a needle valve, and controlling a solenoid driving the needle valve. CONSTITUTION:When a cylinder reaches an injection starting point, an output from a control circuit 31 is sent to a solenoid 30, there a current flow to generate a magnetic field, and a needle valve 21 is lifted to open between the valve 21 and an oil feed 19. Hereby, fuel in an injection hydraulic chamber 18 is, through the hole 19, injected from an injection hole 20. When the conduction to the solenoid 30 is completed, the needle valve 21 returns the lower part to close the hole 19, allowing the injection to be completed. A current valve flowing through the solenoid 30 can be arbitrarily changed by the control circuit 31, and hereby the strength of a magnetic field gnerated by the solenoid 30 can be arbitrarily changed, so that the amount of lifting of the needle 21 can also be arbitrarily changed. Accordingly, the amount of injection per unit time can be arbitrarily changed.

42. 发明专利

JPS58128428A FUEL INJECTION CONTROLLER FOR ENGINE 失效
公开(公告)号：JPS58128428A
公开(公告)日：1983-08-01
申请号：JP1085482
申请日：1982-01-28
申请人： NIPPON SOKEN
发明人： ABE MASAYUKI , ITOU TOSHIHIKO , TANAKA TAKESHI , YOSHINAGA TOORU , SEKIGUCHI KIYONORI , KAWAI HISASHI
IPC分类号： F02D41/40 , F02D1/02 , F02D41/38
摘要： PURPOSE:To enable the use of a compact injection pump which does not require a governor and a timer, by providing an electric relief valve in an injection passage between the fuel injection pump and an injection valve to electrically control the time and quantity of injection and its stoppage optionally. CONSTITUTION:An electric relief valve 4 is provided between high pressure injection pipes 31, 35 for connecting an injection valve 36 with a fuel injection pump 2, which functions to suck fuel out of a fuel tank 1, adjust the quantity of the fuel and then supply it under pressure. The relief valve 4 comprises an inlet port 32, an outlet port 34, a relief port 6 and a valve element 41 extending across between the ports 32, 34. The upper and lower slender portions of the valve element 41 slide in cylinders 42, 43. The energization of coils 51, 52 around the cylinders 42, 43 is regulated by a control circuit 7 to govern the fuel supply to the injection valve 36. The control circuit 7 generates a control signal on the basis of the outputs of an engine rotational frequency sensor 8 and an accelerator opening degree sensor 9.

43. 发明专利

JPS5877132A ELECTRONIC CONTROLLER OF INTAKE THROTTLE VALVE IN DIESEL ENGINE 失效
公开(公告)号：JPS5877132A
公开(公告)日：1983-05-10
申请号：JP17575581
申请日：1981-11-04
申请人： NIPPON SOKEN
发明人： ABE MASAYUKI , KAWAI HISASHI , ITOU TOSHIHIKO , TANAKA TAKESHI
IPC分类号： F02B3/06 , F02D9/02
摘要： PURPOSE:To reduce vibration and noise, in a Diesel engine equipped with intake throttle valves, by providing a load detecting means and vibration detecting means of the engine then adjusting an opening of the throttle valve in accordance with a level of engine vibration. CONSTITUTION:Main and sub-intake throttle valves 12a, 12b are provided in an intake pipe 5. At idling time of an engine 1, the main intake throttle valve 12a is fully closed, and a signal of a limit switch 25 is input to a control circuit 26. In this way, an actuator 19 is driven on the basis of output from a vibration sensor 10 to adjust an opening of the sub-intake throttle valve 12b. In this way, vibration and noise of the engine can be reduced, and discharge of unburned combustion gas can be suppressed.

44. 发明专利

JPS5872642A INTAKE THROTTLE CONTROLLER OF INTERNAL-COMBUSTION ENGINE 失效
公开(公告)号：JPS5872642A
公开(公告)日：1983-04-30
申请号：JP17130281
申请日：1981-10-28
申请人： NIPPON SOKEN
发明人： ABE MASAYUKI , ITOU TOSHIHIKO , TANAKA TAKESHI
IPC分类号： F02D9/02 , F02D21/08 , F02D37/00 , F02M25/07
摘要： PURPOSE:To improve startability of an engine and reduce its vibration and noise at low loaded time of the engine, while suppressing the generation of unburned gas smoke, by performing a great amount of exhaust gas recirculation (EGR) in addition to an intake throttle. CONSTITUTION:If cranking of an engine is started, air flows from an exhaust pipe 6 in an exhaust gas recirculation (EGR) gas introducing pipe 23 in an initial cycle, and is introduced to an intake pipe 5. While air, introduced and fed into a cylinder, is used for combustion, and exhaust gas flows out into the exhaust pipe 6. If the engine increases its speed to, for instance, at least 400rpm, an actuator 22 is operated by an unbruned component detecting means 25 to open a subthrottle valve 10b and supply fresh air. Then a main throttle valve 10a and an EGR control valve 10c, provided in the EGR passage 23, are operated interlocking in such a manner that the EGR control valve 10c is fully opened when the main throttle valve 10a is fully closed.

45. 发明专利

JPS5870044A AIR FUEL RATIO CONTROLLER OF INTERNAL-COMBUSTION ENGINE 失效
公开(公告)号：JPS5870044A
公开(公告)日：1983-04-26
申请号：JP16853781
申请日：1981-10-23
申请人： NIPPON SOKEN
发明人： ABE MASAYUKI , ITOU TOSHIHIKO , KAWAI HISASHI , SAKAKIBARA YASUYUKI
IPC分类号： F02M23/04
摘要： PURPOSE:To improve the stability of an engine by setting the maximum operating current and the minimum operating current of an electric air quantity controlling valve in accordance with the load of the engine, in the titled air-fuel ratio controller for controlling the air-fuel ratio on the basis of the output signal of an O2 senser. CONSTITUTION:An air-fuel controlling air inlet port 21 is provided in a suction pipe 2, and is connected to an electric air quantity controlling valve 72 through an air inlet path 71. An exhaust manifold 41 is provided with an O2 senser 5, and the up and down movement of a valve part 722 is carried out by an output signal from the O2 senser 5 in a cyclic manner. In a control circuit 6, the maximum operating current and the minimum operating current of the electric air quantity control valve 72 is determined in accordance with the opening degree signal, and the control valve 72 does not open at an opening degree more than that in response to the maximum operating current and the minimum operating current. By this arrangement, introduction of air in an excessive quantity is prevented, and hence too much lean air-fuel ratio can be prevented.

46. 发明专利

JPS5847152A INTAKE HEATER FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPS5847152A
公开(公告)日：1983-03-18
申请号：JP14519081
申请日：1981-09-14
申请人： NIPPON SOKEN , NIPPON DENSO CO
发明人： ITOU TOSHIHIKO , ABE MASAYUKI , NIWA JIYUN
IPC分类号： F02M31/135
摘要： PURPOSE:To increase a heating area and heighten the efficiency of fuel atomization, by piling up a plurality of ceramic heating plates having numerous through holes, so that a distance is set between the plates and by mounting the plate pile in a mixture passage. CONSTITUTION:Flanges 1b, 2a provided on the bottom of a carburetor 1 and the top of an intake pipe 2 are coupled to each other by bolts 6 so that an insulator 5 or the like is inter-osed between the flanges. The insulator 5 is made of electrically-insulating synthetic resin and has a passage hole 5a having nearly the same axis and diameter as a mixture passage 1a. A plurality of same heating plates 7a-7c made of PTC ceramic with a positive resistance- temperature characteristic and a prescribed Curie point are piled up with interposed spacers 9a, 9b made of thin steel sheets, in the passage hole 5a, thereby constructing an intake heater. The heating plates 7a-7c have numerous through holes 71 coaxial with one another.

47. 发明专利

JPS5832961A SUCTION HEATING DEVICE FOR INTERNAL-COMBUSTION ENGINE 失效
公开(公告)号：JPS5832961A
公开(公告)日：1983-02-26
申请号：JP13246681
申请日：1981-08-24
申请人： NIPPON SOKEN
发明人： ABE MASAYUKI , ITOU TOSHIHIKO
IPC分类号： F02M31/135
摘要： PURPOSE:To stabilize the setting state of a heater of a ceramic honeycomb structure set in a suction passage of a suction heating device. CONSTITUTION:An insulator 5 is made of electrically and thermally insulating heat-resisting material, and provided with a squareplane spot-faced part 6 with concaves 61a-61c in three sides. A ceramic heater 7 is of a low square pillar- shaped honeycomb structure with a penetrated hole 72, and its square periphery is fitting to the square part of the spot-faced part 6. This heater 7 is fitted into the spot-faced part 6 to be contained and supported in the insulator 5. Then, when leaf springs 10a-10c are respectively inserted into concaves 61a-61c, the heater 7 can be fast fixed.

48. 发明专利

JPS5823244A SUCTION AIR THROTTLE CONTROLLER OF DIESEL ENGINE 失效
公开(公告)号：JPS5823244A
公开(公告)日：1983-02-10
申请号：JP12336981
申请日：1981-08-05
申请人： NIPPON SOKEN
发明人： ITOU TOSHIHIKO , ABE MASAYUKI
IPC分类号： B60K25/04 , B60W10/04 , B60W10/06 , B60W10/18 , F02B3/06 , F02D9/02
摘要： PURPOSE:To eliminate the application of a vacuum pump by introducing a pressure at the lower side of a suction air throttle valve into a brake booster. CONSTITUTION:Both flow lines extending from a negative pressure take-out port 9 which opens to a suction pipe 1 at the lower side from a suction air throttle valve 2 and from a vacuum pump 10 via check valves 11 and 12, respectively, meet before running into a brake booster 13. When an engine is turned ON, a computer 5 commands a linear solenoid 3 to open the suction air throttle valve 2 by 2/10 from its fully closed condition. At idling after the start of the engine, suction air is throttled with the throttle valve opened by 2/10, thereby providing the aid for reduction in noise and vibration. Once an accelerating pedal is stepped on for driving, an acceleration switch is turned ON so that the computer 5 commands the linear solenoid 3 to fully open the suction air throttle valve 2. Hence, the vacuum pump may be excluded.

49. 发明专利

JPS57163156A IGNITION DEVICE FOR INTERNAL-COMBUSTION ENGINE 失效
公开(公告)号：JPS57163156A
公开(公告)日：1982-10-07
申请号：JP4916081
申请日：1981-03-31
申请人： NIPPON SOKEN
发明人： KAWAI HISASHI , SADA HIROSHI , ITOU TOSHIHIKO , YOSHINAGA TOORU
IPC分类号： F02P3/045 , F02P3/04 , F02P3/055 , F02P5/155 , F02P9/00 , F02P15/10
摘要： PURPOSE:To reduce the abrasion of an ignition plug by a method wherein a power transistor, intermitting the primary current thereof by the signal of an ignition signal generator is connected with the control circuit of an upper dead point signal generator detecting the position by synchronizing with a crank shaft and the ignition after the upper dead point is interrupted. CONSTITUTION:When the contact 3 of a breaker is closed by closing a switch 2, a current is flowed from a transistor 5 to the primary side of an ignition coil 10 through a power transistor 8 while a high voltage is generated at the secondary side of the coil 10 when the contact 3 is opened, and thereby effecting the ignition. On the other hand, the signal of a disc 3a rotating synchronously with the contact 3 is sensed by a senser 3b and a signal with respect to the position of the upper dead point is outputted. Accordingly, a monostable multivibrator 122 is brought to a low level, a transistor 124 is put ON and the connecting point of a resistor 126 and a capacitor 125 is brought to a high level, therefore, a voltage is generated at the output 12b of a control circuit 12 and a current is flowed to the transistor 8 gradually. The voltage of the transistor 8 is changed in the wave form thereof by the current from the transistor 5 and the control circuit 12 whereby the voltage of the secondary side of the ignition coil 10 is interrupted at the upper dead point.

50. 发明专利

JPS5791377A IGNITION METHOD OF INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPS5791377A
公开(公告)日：1982-06-07
申请号：JP16618080
申请日：1980-11-26
申请人： NIPPON SOKEN
发明人： ITOU TOSHIHIKO , KAWAI HISASHI , YOSHINAGA TOORU , MORINO SEIJI , MORI KOUICHI
IPC分类号： F02P9/00 , F02P3/045
摘要： PURPOSE:To prevent consumption of a plug electrode in the ignition method where high voltage is generated in a secondary coil by disconnection of electric conduction in a primary coil, by electrically conducting the primary coil again in the vicinity of the top dead center and interrupting a firing spark. CONSTITUTION:A transistor 5 is turned on by closing of a breaker contact 3 to allow an electric current to flow in the primary side of an ignition coil 10, and turned off by the next opening of the contact, if the primary current is cut off, high voltage is generated at this moment in the secondary side to cause a spark. On the other hand, a position signal of the top dead center (TDC) detected by a sensor 3b of a disc 3a passes through an AND gate 123 together with a pulse, generated in the first monostable multivibrator 122 after the opening of the contact 3, to turn on a power transistor 8, then the high voltage is dissipated at a steep gradient. Simultaneously a transistor 133 is turned on the allow an electric current to flow in the primary coil and charge a capacitor 135, then the current is gradually decreased not to cause high voltage in the secondary side.

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