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1. 发明专利

JPS5810145A DISCHARGED GAS RECIRCULATION CONTROL SYSTEM FOR DIESEL ENGINE 失效
公开(公告)号：JPS5810145A
公开(公告)日：1983-01-20
申请号：JP10691881
申请日：1981-07-10
申请人： NIPPON SOKEN , TOYOTA MOTOR CO LTD
发明人： SEKIGUCHI KIYONORI , ITOU TOSHIHIKO , TANAKA TAKESHI , KAWAI HISASHI , YAMADA MITSUMASA , KAWAGOE MICHIO , TANAKA MASAAKI
IPC分类号： F02M25/07 , F02B3/06 , F02D21/08
摘要： PURPOSE:To prevent an increasing of HC and perform a suitable EGR by a method wherein a number of revolution of engine is sensed and a volume of EGR is decreased in response to the sensed value. CONSTITUTION:Solenoid valve 6 arranged via orifice 62 in the midway part of the communication pipe between the EGR valve 1 and a specified pressure valve 2 varies a rate between an atmosphere discharging time and a negative pressure communicating time supplied from a specified pressure valve 2 and decreases a negative pressure supplied to the EGR valve 1. Controller 7 for controlling a ratio between the opening and closing times calculates a signal of the number of revolution supplied from the sensor device 8 for sensing the number of revolution of the engine and produces a rate of time of negative pressure communication of the solenoid valve 6 in response to the calculted result. Thereby, in a range of operation more than a predetermined number of revolution, a rate of EGR can be decreased as the number of revolution is increased and then an increasing of a volume of HC is prevented.

2. 发明专利

DE69102232D1 未知
公开(公告)号：DE69102232D1
公开(公告)日：1994-07-07
申请号：DE69102232
申请日：1991-08-14
申请人： TOYOTA MOTOR CO LTD
发明人： NAKAE KOICHI , FUKUYAMA TADASHI , BAIKA TOYOKAZU , SATO TAKESHI , KAWAGOE MICHIO
IPC分类号： F02B3/06 , F02B25/14 , F02B75/02 , F02F1/24 , F02F1/42 , F02B19/14

3. 发明专利

DE69102232T2 未知
公开(公告)号：DE69102232T2
公开(公告)日：1994-10-13
申请号：DE69102232
申请日：1991-08-14
申请人： TOYOTA MOTOR CO LTD
发明人： NAKAE KOICHI , FUKUYAMA TADASHI , BAIKA TOYOKAZU , SATO TAKESHI , KAWAGOE MICHIO
IPC分类号： F02B3/06 , F02B25/14 , F02B75/02 , F02F1/24 , F02F1/42 , F02B19/14

4. 发明专利

JPS58106136A REGULATING DEVICE OF FUEL INJECTION QUANTITY IN DIESEL ENGINE 失效
公开(公告)号：JPS58106136A
公开(公告)日：1983-06-24
申请号：JP20512381
申请日：1981-12-21
申请人： TOYOTA MOTOR CO LTD
发明人： KAWAGOE MICHIO , TANAKA MASAAKI
IPC分类号： F02D23/02 , F02B3/06 , F02D1/02 , F02D1/08
摘要： PURPOSE:To simultaneously further easily perform altitude compensation and supercharged pressure correction of a supercharger, by providing a negative pressure control valve, which generates negative pressure in accordance with an intake air quantity, and negative pressure controller operating an injection quantity regulating member in accordance with said negative pressure. CONSTITUTION:A driving shaft 2 of a fuel injection pump 1 is driven by a Diesel engine 3. An injection quantity regulating lever 41 is operated by a negative presure responsive controller 55, and a level of negative pressure is controlled by a solenoid opening and closing valve 61 and arithmetic device 63. The arithmetic device 63 receives output signals of an intake air quantity 64, temperature detector 65 and speed detector 67. In this way, altitude compensation and correction of supercharged pressure of a supercharger can be simultaneously further easily performed.

5. 发明专利

JPS5848764A APPARATUS OF EXHAUST GAS RECIRCULATION CONTROLLING VALVE FOR DIESEL ENGINE 失效
公开(公告)号：JPS5848764A
公开(公告)日：1983-03-22
申请号：JP14695981
申请日：1981-09-16
申请人： TOYOTA MOTOR CO LTD
发明人： FUKUYAMA TADASHI , KAWAGOE MICHIO
IPC分类号： F02M25/07 , F01N3/02 , F02B3/06 , F02D21/08
摘要： PURPOSE:To restrain the generation of smoke or the like effectively by a method wherein the amount of exhaust gas recirculation is controlled so as to be kept in constant in spite of the aging of a particulate trapper in the diesel engine. CONSTITUTION:A part of the exhaust gas from the engine 1 is taken out of the upstream side of the particulate trapper 4 and is recirculated into a suction air path 42 at the downstream side of an airflow meter 12 through an exhaust gas recirculating path 43. When a back pressure is increased by the aging due to the clogging of the particulate trapper, the amount of the exhaust gas recirculation (EGR) is increased by the increase of the back pressure even if the EGR valve 22 is keeping the same opening degree. A suction air volume is decreased by the increase of the amount of the EGR while the decreased amount is detected by the airflow meter 12. This information is inputted into a computor 11 together with the outputs of other various sensors. The result of the processing thereof is outputted to a vacuum control valve 21 from the computor 11 and the cacuum control valve 21 controls the EGR valve 22 so that the suction air volume actually measured by the airflow meter 12 coincides with an initial suction air volume.

6. 发明专利

JPH0568637B2 失效
公开(公告)号：JPH0568637B2
公开(公告)日：1993-09-29
申请号：JP19648585
申请日：1985-09-04
申请人： TOYOTA MOTOR CO LTD
发明人： KAWAGOE MICHIO , SATO TAKESHI
IPC分类号： F02M41/12 , F02B3/06 , F02M45/04

7. 发明专利

JPS59231167A EXHAUST GAS RECIRCULATING DEVICE 失效
公开(公告)号：JPS59231167A
公开(公告)日：1984-12-25
申请号：JP10575383
申请日：1983-06-15
申请人： TOYOTA MOTOR CO LTD
发明人： TSUKIMISATO MITSUO , KAWAGOE MICHIO
IPC分类号： F02M25/07 , F02D21/08 , F02M25/06
摘要： PURPOSE:To permit to effect the precise control of a circulating amount by a method wherein the circulating amount of the exhaust gas is controlled by supplying an operating vacuum to a vacuum operating valve device from a linear solenoid type valve device driven whithin a predetermined frequency range in a diesel engine. CONSTITUTION:The exhaust gas recirculation control device 9 consiting of micro computers obtains the optimum exhaust gas recirculating amount by the signals of a load sensor 8, a revolving number sensor 7 and a water temperature sensor 20, drives the linear solenoid type vacuum control valve 10 through a D/A converter 17 and a driving circuit 18 and operates a vacuum operating EGR valve to control the amount of recirculation. The signal, driving the linear solenoid type vacuum control valve 10, is the signal having a frequency within the range of 40-100Hz and a duty ratio in accordance with the amount of recirculation. Thus the amount of EGR may be controlled precisely without generating hunting or the like and whereby the generation of poisonous exhaust gas constitutent may be restrained and the drivability of the engine may be secured.

8. 发明专利

JPS57208378A NEGATIVE PRESSURE CONTROLLING VALVE 失效
公开(公告)号：JPS57208378A
公开(公告)日：1982-12-21
申请号：JP9460981
申请日：1981-06-19
申请人： NIPPON DENSO CO , TOYOTA MOTOR CO LTD
发明人： NAITOU MICHIKATSU , YANO KIYOTOSHI , ITOU KAZUO , TSUZUKI KUNIHIRO , TANAKA MASAAKI , KAWAGOE MICHIO
IPC分类号： F16K31/06 , F02B1/04 , F02M25/07 , G05D16/20
摘要： PURPOSE:To effectively control the negative pressure in a diaphragm chamber in accordance with th state of engine load by a method wherein a valve holding member equipped between the diaphragm chamber and a chamber open to the atmosphere is adjustably supported by a plurality of balance springs and a moving rod. CONSTITUTION:When engine load increases, a coil 42 is excited through a load sensor 45 and a operational processing circuit 46 in order to apply an attractive force to a gap 44. Accordingly, even under the condition that the negative pressure in the diaphragm chamber is low, the force of the spring 34 surpasses that of the spring 35, resulting in shifting the moving rod 36 downward, lowering the valve holding member 32 and communicating the diaphragm chamber 26 to the chamber open to the atmosphere 39. Consequently, when the pressures in both the chambers 26 and 39 are equal to each other, the valve holding member 32 is raised by means of the spring 35 and the diaphragm chamber 26 is made vacuum for the setting of negative pressure by means of a vacuum pump 31. In other words, the setting of negative pressure can be performed in accordance with the state of engine load.

9. 发明专利

JPS57184777A NEGATIVE PRESSURE CONTROL VALVE 失效
公开(公告)号：JPS57184777A
公开(公告)日：1982-11-13
申请号：JP6724181
申请日：1981-05-01
申请人： TOYOTA MOTOR CO LTD
发明人： KAWAGOE MICHIO , TANAKA MASAAKI
IPC分类号： F16K31/06
摘要： PURPOSE:To effect negative pressure control in a high accuracy by a constitution wherein the vacuum is controlled in accordance with an equilibrium relation between a resilient force given to a spring diaphragm of which resilient force is changed by an electromagnetic device and a force given to the diaphragm by the vacuum. CONSTITUTION:When the vacuum in a diaphragm chamber 6 is small, a valve element 17 is seated to a valve seat 19 to shut off the communication betweeen the diaphragm chamber 6 and an atmosphere releasing chamber 7 and is separated from the tip end of a tubular member 10 to open a vacuum introducing port 11 into the diaphragm chamber 6. On the other hand, when the force given to a diaphragm 5 by a pressure difference is larger than the resilient force of the compression coil spring 30, or when the vacuum in the diaphragm chamber 6 is large, the diaphragm 5 is displaced upward deflecting the compression coil spring 30, the valve element 17 is abutted against the tip end of the tubular member 10 to close the vaccum introducing port 11 and also is separated from the valve seat 19 to bleed the vacuum.

10. 发明专利

JPS6349067B2 失效
公开(公告)号：JPS6349067B2
公开(公告)日：1988-10-03
申请号：JP10316982
申请日：1982-06-15
申请人： TOYOTA MOTOR CO LTD
发明人： ANDO KEN , TANAKA MASAAKI , KAWAGOE MICHIO
IPC分类号： F02M25/07 , F02B3/06 , F02D21/08

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