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1. 发明专利

DE2822337A1 未知
公开(公告)号：DE2822337A1
公开(公告)日：1978-11-30
申请号：DE2822337
申请日：1978-05-22
申请人： NIPPON SOKEN , TOYOTA MOTOR CO LTD
发明人： KOHAMA TOKIO , OBAYASHI HIDEKI , OZAKI TADASHI , NOHIRA HIDETAKA
IPC分类号： F02M25/07 , F02D21/08
摘要： An exhaust gas recirculation system for an internal combustion engine comprising an exhaust gas recirculation passage for recirculating exhaust gases from an exhaust pipe into an intake pipe downstream of a throttle valve, a control valve responsive to a pressure signal for opening or closing said recirculation passage, a pressure chamber defined within the recirculation passage, a negative pressure control valve to which is transmitted a negative throttle pressure generated at a throttle port at a position upstream of the throttle valve when the latter is completely closed and which controls said negative throttle pressure in response to the load on the engine, and a modulator wherein the pressure from the pressure chamber acts on one surface of a diaphragm while the negative output pressure from the negative pressure control valve acts on the other surface of the diaphragm so that the modulator may control the pressure signal in response to the difference between said two pressures acting on the diaphragm, whereby the amount of exhaust gases recirculated may be made proportional to the load on the engine regardless of the variation in rotational speed of the engine.

2. 发明专利

DE2803242A1 未知
公开(公告)号：DE2803242A1
公开(公告)日：1978-07-27
申请号：DE2803242
申请日：1978-01-25
申请人： NIPPON SOKEN , TOYOTA MOTOR CO LTD
发明人： KOHAMA TOKIO , OBAYASHI HIDEKI , OZAKI TADASHI , NOHIRA HIDETAKA
IPC分类号： F02M25/07 , F02D21/08 , F02M25/06

3. 发明专利

JPS60219448A FUEL INJECTOR 失效
公开(公告)号：JPS60219448A
公开(公告)日：1985-11-02
申请号：JP7579784
申请日：1984-04-17
申请人： NIPPON SOKEN , TOYOTA MOTOR CO LTD
发明人： ITOU TOSHIHIKO , SAKAKIBARA YASUYUKI , ABE MASAYUKI , TAKEUCHI YASUHIRO , NOHIRA HIDETAKA
IPC分类号： F02M47/00 , F02B1/04 , F02B3/06 , F02M47/02 , F02M51/06 , F02M59/10 , F02M59/42
摘要： PURPOSE:To improve the starting performance of Diesel engine by providing an auxiliary pump for feeding high pressure fuel. CONSTITUTION:Upon turning ON of a key switch, a low pressure feed pump 4 and an air pump 6 will start function. The fuel fed from said pump 4 will go to the pump chamber 207 of a high pressure feed pump 2 and to a reservoir 802. A control valve 7 is changed over through a timer to feed high pressure air from an air pump 6 into the diaphragm chamber 512. A plunger 502 is pushed down through this air pressure to pressurize the fuel in the pump chamber 508. When performing cranking through a starter, it can be started immediately.

4. 发明专利

JPS53118624A AIR FUEL RATIO CONTROLLER FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPS53118624A
公开(公告)日：1978-10-17
申请号：JP3285777
申请日：1977-03-24
申请人： NIPPON SOKEN , TOYOTA MOTOR CO LTD
发明人： KOHAMA TOKIO , OOHAYASHI HIDEKI , OZAKI MAKOTO , NOHIRA HIDETAKA
IPC分类号： F02D21/10 , F02M23/04 , F02M23/08
摘要： PURPOSE:To control air fuel ratio highly accurate over wide range, and to correct and control air fuel ratio in response to loads.

5. 发明专利

JPS5344726A EXHAUST GAS RECIRCULATING APPARATUS FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPS5344726A
公开(公告)日：1978-04-21
申请号：JP11873676
申请日：1976-10-01
申请人： NIPPON SOKEN , TOYOTA MOTOR CO LTD
发明人： KOHAMA TOKIO , OOHAYASHI HIDEKI , OZAKI MAKOTO , NOHIRA HIDETAKA
IPC分类号： F02M25/07 , F02D21/08 , F02M25/06
摘要： PURPOSE:To control the EGR rate of the total recirculation amount nearly constant by keeping the EGR rate of the outside EGR low in light loading and high in high loading, and to reduce NOx effectively.

6. 发明专利

JPS535315A SECONDARY AIR SUPPLY SYSTEM FOR EXHAUST EMISSION CONTROL FOR INTERNALLCOMBUSTION ENGINE 失效
公开(公告)号：JPS535315A
公开(公告)日：1978-01-18
申请号：JP7917676
申请日：1976-07-03
申请人： NIPPON SOKEN , TOYOTA MOTOR CO LTD
发明人： KOHAMA TOKIO , OOBAYASHI HIDEKI , OZAKI MAKOTO , NOHIRA HIDETAKA
IPC分类号： F01N3/34 , F01N3/10
摘要： PURPOSE:To accomplish the proper exhaust emission control by proportioning the amount of secondary air for the control to the amount of suction air fed to a cylinder.

7. 发明专利

JPS52118121A SECONDARY AIR FEEDING APPARATUS FOR PURIFYING EXHAUST GAS OF INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPS52118121A
公开(公告)日：1977-10-04
申请号：JP3402176
申请日：1976-03-26
申请人： NIPPON SOKEN , TOYOTA MOTOR CO LTD
发明人： KOHAMA TOKIO , OOBAYASHI HIDEKI , OZAKI MAKOTO , NOHIRA HIDETAKA
IPC分类号： F01N3/22 , F01N3/10
摘要： PURPOSE:A comparator for comparing the signals relating to the suction air amount and the secondary air feeding amount is arranged, and the control valve arranged on the secondary air feeding passage is operated, and the feeding of the optimum amount of the secondary air is always operated, and the uncombusted component in the exhaust gas is certainly reduced.

8. 发明专利

JPS5681235A AIRRFUEL RATIO CONTROLLER FOR INTERNAL COMBUSTION ENGINE WITH SUPERCHARGER 失效
公开(公告)号：JPS5681235A
公开(公告)日：1981-07-03
申请号：JP15763779
申请日：1979-12-04
申请人： NIPPON SOKEN , TOYOTA MOTOR CO LTD
发明人： IWAMOTO KENJI , KUROYANAGI MAKOTO , KAWAI HISASHI , YOSHIMURA KUNIMASA , NOHIRA HIDETAKA , UGAJIN MITSUYUKI , OOKI HISASHI
IPC分类号： F02D41/34 , F02B1/04 , F02D23/00 , F02D41/00 , F02D41/02 , F02D41/04 , F02D41/14 , F02D45/00
摘要： PURPOSE:To accurately prevent thermal breakdown of a supercharger and parts in an exhaust system by appropriately controlling air-fuel ratio by detecting exhaust gas temperature which flows into a turbine casing of the supercharger. CONSTITUTION:An internal combustion engine with a supercharger which is constituted by coaxially combining a compressor impeller 3 and a turbine impeller 10 is equipped with a computer 17 which determines fuel rate that counterbalances with expected air-fuel ratio corresponding to valve of suction air rate determined by an air-flow meter 2. An injector 7 injects fuel in accordance with signals from the computer 17. In this case, an exhaust gas temperature detector 15 and an air-fuel ratio sensor 16 are provided in an exhaust system. Then, the fuel injection ratio is determined by the computer 17 so that the air-fuel ratio, when exhaust gas temperature is less than the expected value, becomes close to theoretical air-fuel ratio, and also, when it is over the expected value, the fuel injection rate is determined so that the air-fuel ratio becomes rich.

9. 发明专利

JPS557976A ELECTRONIC CONTROL SYSTEM OF CARBURETOR IN INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPS557976A
公开(公告)日：1980-01-21
申请号：JP8136378
申请日：1978-07-04
申请人： NIPPON SOKEN , TOYOTA MOTOR CO LTD
发明人： KOHAMA TOKIO , MATSUI TAKESHI , NISHIMATSU AKIRA , OBATA KIYOSHI , KAWAI HISASHI , INA TOSHIKAZU , NOHIRA HIDETAKA
IPC分类号： F02M7/28 , F02D41/02 , F02D41/24 , F02M7/24
摘要： PURPOSE:To obtain an electronic control system which is optimally controllable of air-to-fuel ratio of mixed air regulable by a carburetor in proportion to working condition of an internal combustion engine. CONSTITUTION:A main air passage 23 in a carburetor 20 is conducted through an air jet 22a to the upstream of a Venturi 13, an auxiliary air passage 23 is conducted through a servomotor 30 to the upstream of the Venturi 13. Air amount which streams through an auxiliary air passage 23 is regulated in proportion to changes of gaseous matter pressure given in a servo chamber 34 of a servomotor 30, optimal gaseous matter pressure given to said servo chamber 34 is regulated by controlling each solenoid SOL a, b of an electromagnetic valves 70a, 70b by output of an electronic control circuit 1000 which makes operations of the desired data from relations of each output of a rotational velocity detector 40, a negative pressure detector 50 and gaseous matter pressure given to the servo chamber 34. And, gaseous matter pressure given to the servo chamber 34 is detected as electric signal.

10. 发明专利

JPS53146030A DEVICE FOR RECYCLING EXHAUST GAS OF INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPS53146030A
公开(公告)日：1978-12-19
申请号：JP6139377
申请日：1977-05-26
申请人： NIPPON SOKEN , TOYOTA MOTOR CO LTD
发明人： KOHAMA TOKIO , OOHAYASHI HIDEKI , OZAKI MAKOTO , NOHIRA HIDETAKA
IPC分类号： F02M25/07
摘要： PURPOSE:To make it possible to vary the external EGR ratio depending on the load.

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