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1. 发明专利

JPH09303128A BLOWBY GAS REFLUX DEVICE 失效
公开(公告)号：JPH09303128A
公开(公告)日：1997-11-25
申请号：JP12031196
申请日：1996-05-15
申请人： TOYOTA MOTOR CORP , AISAN IND
发明人： II AKIRA , INA TOKUMITSU
IPC分类号： F01M13/00
摘要： PROBLEM TO BE SOLVED: To provide a blowby gas reflux device to prevent the occurrence of a trouble due to heating of a throttle body and to prevent the fixing of a throttle valve during cold time. SOLUTION: A blowby gas reflux device comprises a passage consisting of a fresh air introduction pipe 19 to intercouple an intake passage 3 situated upper stream from a throttle valve 4 and a cylinder head cover 2; a passage consisting of a blowby gas reflux pipe 13 to intercouple the head cover 2 and the intake passage 3 situated downstream from the throttle valve 4: and a passage consisting of a second blowby gas reflux pipe 20 to intercouple the fresh air introduction passage and the intake passage 3 situated downstream from the throttle valve 4. A selector valve 11 to release the fresh air introduction passage and close the second blowby gas reflux passage when a negative pressure in the intake passage 3 situated downstream from the throttle valve 4 is high and switch the opening closing states when the negative pressure is low is arranged at a part wherein the second blowby gas reflux passage crosses the fresh air introduction passage. Even during a total load, blowby gas is prevented from a reverse flow.

2. 发明专利

JPH0193606A MULTI-STAGE DIAPHRAGM DEVICE 失效
公开(公告)号：JPH0193606A
公开(公告)日：1989-04-12
申请号：JP25073787
申请日：1987-10-06
申请人： TOYOTA MOTOR CORP , AISAN IND
发明人： NONOYAMA TAKAO , II AKIRA , NOGAMI SUSUMU , YAMAUCHI TOKIO
IPC分类号： F16J3/02 , F15B15/24
摘要： PURPOSE:To make the structure simple and compact by providing plural stages of vacuum induction ports in a cylinder, interlocking a slide rod with a diaphragm, and closing the vacuum induction ports in association with movement of the slide rod. CONSTITUTION:A cylinder 8 is formed with a plurality of vacuum induction ports 11. A slide rod 7 is provided on a central portion of a diaphragm 2. The vacuum induction ports 11 are adapted to be closed in association with movement of the slide rod 7. Accordingly, it is sufficient to provide the slide rod 7 in a vacuum chamber 3. Further, if plural stages of operational control positions are needed, it is merely necessary to increase the number of the vacuum induction ports 11. Thus, the structure can be made very simple and compact.

3. 发明专利

JPS62153539A FUEL INJECTION CONTROL OF INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPS62153539A
公开(公告)日：1987-07-08
申请号：JP29665985
申请日：1985-12-27
申请人： TOYOTA MOTOR CORP
发明人： II AKIRA , TANAKA YOSHIYUKI , HAYASHI KENJI
IPC分类号： F02D41/04 , F02D41/00
摘要： PURPOSE:To correctly control the air fuel ratio by determining the intake temperature correction coefficient of the fuel injection according to the intake air quantity, added with the intake temperature. CONSTITUTION:In a controller 20, the fundamental intake temperature correction coefficient is calculate from the fundamental injection corresponding to the intake on the basis of the intake pipe pressure detected by an intake pressure sensor 21 and the intake air temperature detected by an intake temperature sensor 22. The fundamental intake temperature correction coefficient is calculated so as to decrease as the intake temperature rises. Then, the correction value of the intake temperature correction coefficient is determined according to the fundamental injection quantity as the substitution value for the intake quantity. The correction value is calculated so as to increase as the fundamental injection increases. the intake correction coefficient is calculated through the multiplication of the fundamental intake temperature correction coefficient by the correction value, and the fuel injection is calculated by the multiplication of the fundamental injection by the intake temperature correction coefficient. The operation of a fuel injector 3 is controlled by the fuel injection.

4. 发明专利

JPS62153535A FUEL INJECTION CONTROLLER FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPS62153535A
公开(公告)日：1987-07-08
申请号：JP29583685
申请日：1985-12-26
申请人： TOYOTA MOTOR CORP
发明人： HAYASHI KENJI , II AKIRA , TANAKA YOSHIYUKI
IPC分类号： F02D41/04 , F02D41/00
摘要： PURPOSE:To improve the acceleration performance by making the air fuel ratio nearly equal to the engine demand value over the whole range of acceleration by taking into consideration of the adhering quantity of fuel due to the variation of the suction pipe pressure. CONSTITUTION:The suction pipe pressure, engine speed, the first and the second weighted average values of the suction pipe pressure which are memorized in the RAM of an electronic control circuit 44 are taken in, and the fundamental fuel injection is calculated on the basis of the suction pipe pressure and the engine speed. Then, the increase/decrease coefficient for the fuel injection is calculated by multiplying the constant A with the value which is obtained by subtracting the second weighted average value from the first weighted average value. The fuel injection is calculated by correcting the fundamental fuel injection by this coefficient, and a fuel injection valve 24 is opened for the corresponding time. Therefore, in acceleration, fuel injection is controlled so as to gradually increase from the initial period in acceleration towards the end of acceleration, and in deceleration, the fuel injection is controlled so as to gradually decrease from the initial period of deceleration towards the end of deceleration.

5. 发明专利

JPS6189959A Fuel injection controler for internal-combustion engine 失效
标题翻译：燃油喷射控制器内燃机
公开(公告)号：JPS6189959A
公开(公告)日：1986-05-08
申请号：JP21151984
申请日：1984-10-11
申请人： Toyota Motor Corp
发明人： OKANO HIROSHI , II AKIRA , KAWAI SHIRO
IPC分类号： F02D41/04 , F02D41/00 , F02D41/34
CPC分类号： F02D41/0002 , F02D41/008 , Y02T10/42
摘要： PURPOSE:To reduce a harmful exhaust gas component as well as to improve drivability, by installing a device, calculating a fuel injection quantity and a device, detecting phase in one operating cycle of each cylinder plus such a device that makes each fuel injection valve operates selectively, respectively. CONSTITUTION:Each throttle valve 3 is installed in a suction pipe 2 of each cylinder of a multicylinder internal-combustion engine 1, and each fuel injection valve 4 is set up at the downstream of these throttle valves 3. An injection quantity operational device 5 calculates a fuel injection quantity according to driving conditions of the engine 1. A phase detecting device 6 detects phase in one operating cycle of each cylinder. A selective injection device 7 selectively operates these fuel injection valves 4 so as to spray the calculated quantity of fuel at the detected phase. Thus, a harmful exhaust gas component is well reduced and improvements in drivability is promoted.
摘要翻译：目的：为了减少有害废气成分以及提高驾驶性能，通过安装设备，计算燃料喷射量和装置，检测每个气缸的一个操作循环中的相位加上使每个燃料喷射阀运行的装置分别选择性地。构成：将各节流阀3安装在多缸内燃机1的各气缸的吸入管2中，将各燃料喷射阀4设置在这些节流阀3的下游。喷射量运转装置5计算根据发动机1的驱动条件的燃料喷射量。相位检测装置6检测每个气缸的一个操作循环中的相位。选择性喷射装置7选择性地操作这些燃料喷射阀4，以便在检测到的相位喷射计算出的燃料量。因此，有效的废气成分得到很好的减少，提高了驾驶性能。

6. 发明专利

JPS6189958A Fuel injection controller for internal-combustion engine 失效
标题翻译：燃油喷射控制器用于内燃机
公开(公告)号：JPS6189958A
公开(公告)日：1986-05-08
申请号：JP21152084
申请日：1984-10-11
申请人： Toyota Motor Corp
发明人： OKANO HIROSHI , II AKIRA , KAWAI SHIRO
IPC分类号： F02D41/28 , F02D41/00 , F02D41/18 , F02D41/32 , F02D41/34 , F02D45/00
CPC分类号： F02D41/182 , F02D41/32
摘要： PURPOSE:To improve drivability as well as to check the discharge of a harmful gas component, by installing a device, which calculates a sampling time commensurate to the measured revolving speed of an engine, and also another device which calculates a fuel injection quantity according to detection data out of a pressure sensor for a suction pipe. CONSTITUTION:A memory device M stores a sampling time setting value of suction pipe pressure according to a revolving speed of an engine. A sampling time calculating device C calculates a sampling time commensurate to the measured revolving speed out of an engine speed sensor 7. A sampling device R reads detection data of a pressure sensor when the sampling time is detected by a crank angle detecting device D. A suction air quantity calculating device F calculates a fuel injection quantity according to the data. Thus, drivability is well improvable and, what is more, the discharge of a harmful gas component in exhaust gas is checkable.
摘要翻译：目的：为了提高驾驶性能以及检查有害气体成分的排放，通过安装与计算出的发动机的转速相当的取样时间的装置，以及根据本发明的计算出的燃料喷射量的另一装置，从用于吸入管的压力传感器检测数据。构成：存储装置M根据发动机的转速存储吸入管压力的取样时间设定值。采样时间计算装置C计算与发动机转速传感器7相对应的测量转速的采样时间。采样装置R读取由曲柄角检测装置D检测出采样时间时的压力传感器的检测数据。吸气量计算装置F根据该数据计算燃料喷射量。因此，驾驶性能是非常好的，而且排气中的有害气体成分的排出也是可以检查的。

7. 发明专利

JPS5928060A Air valve type carburetor 失效
标题翻译：气阀类型
公开(公告)号：JPS5928060A
公开(公告)日：1984-02-14
申请号：JP13677682
申请日：1982-08-05
申请人： Toyota Motor Corp
发明人： II AKIRA , KAWAI SHIROU , MORISHITA MICHIO
IPC分类号： F02M17/08 , F02M17/09
CPC分类号： F02M17/09
摘要： PURPOSE:To prevent the improper rotation of a fulcrum of a needle valve which has a metering needle for metering fuel by providing a guide between a return spring provided at the fulcrum and a collar of the inside of the spring. CONSTITUTION:When a throttle valve 7 is opened, negative pressure of suction manifold is acted on an air valve 8, which is then opened in the prescribed degree. A cam which is provided integrally with the valve 8 raises a needle valve 12 through a roller 17 by the opening of the valve 8. Accordingly, a lever 12 is rotated around a set screw 1 to draw out a metering needle 13 from a jet 15. Thus, metered fuel is sucked to a secondary passage 6 from a nozzle 16. In this case, since a spring guide 18 is provided in the bore of the coil spring 4, the spring 4 is not contacted directly with the collar 2, and the collar 2 is not accordingly pressed against the set screw 1, but can be freely rotated.
摘要翻译：目的：为了防止在具有用于计量燃料的计量针的针阀的支点的旋转不正确，通过在设置在支点处的复位弹簧和弹簧内部的套环之间提供引导件。构成：当节流阀7打开时，吸入歧管的负压作用在空气阀8上，然后空气阀8以规定的程度打开。与阀8一体设置的凸轮通过阀8的打开而通过辊17提升针阀12.因此，杆12围绕固定螺钉1旋转，以从射流15抽出计量针13 因此，计量燃料从喷嘴16被吸入次级通道6.在这种情况下，由于弹簧导向件18设置在螺旋弹簧4的孔中，所以弹簧4不直接与套环2接触，并且轴环2不会因此被压靠在固定螺钉1上，而是可以自由旋转。

8. 发明专利

JPH10317998A HOT WATER TYPE HEATER 失效
公开(公告)号：JPH10317998A
公开(公告)日：1998-12-02
申请号：JP13131297
申请日：1997-05-21
申请人： AISAN IND , TOYOTA MOTOR CORP
发明人： INA TOKUMITSU , MIZOGUCHI KENJI , KOSAKA NOBUAKI , II AKIRA
IPC分类号： F02M15/02 , F02D9/10 , F02M35/10
摘要： PROBLEM TO BE SOLVED: To control the flow rate of hot water in a heater corresponding to the temperature of intake air led thereinto. SOLUTION: A hot water passage 42 is laid in which hot water for heating a throttle body 1 flows. The hot water passage 42 is provided therein with a thermo-valve 18 for controlling the hoot water flow rate through temperature sensing by its temperature sensing element 23, which is arranged in an intake passage 4 in which intake air flows. When the intake air temperature is lower, the valve 18 is opened so that the hot water flowing in the hot water passage 42 heats the throttle body 1 up to prevent icing. When the intake air temperature reaches a predetermined value, on the other hand, the valve 18 is closed to stop the heating of the throttle body 1 by the hot water so that the intake air that has been heated up by the heat of the throttle body 1 cools down and its volume reduces for improved charging efficiency.

9. 发明专利

JPH05231241A FUEL INCREASING DEVICE FOR EVAPORATOR 失效
公开(公告)号：JPH05231241A
公开(公告)日：1993-09-07
申请号：JP2968592
申请日：1992-02-17
申请人： TOYOTA MOTOR CORP , AISAN IND
发明人： II AKIRA , HIROZAWA HIDENORI
IPC分类号： F02M1/08 , F02M3/12 , F02M5/16 , F02M7/06 , F02M19/06
摘要： PURPOSE:To improve startability and accelerating performance immediately after starting of an engine which is left for a long time in a fuel increasing device of an evaporator. CONSTITUTION:A float interlocking valve 9 which is opened interlockingly with descending of a float 5 is provided on a fuel passage 10 which communicates a bottom part of a float chamber 2 with auxiliary fuel tanks 11, 12. Sub-nozzles 13, 14 which are located in the vicinity of a throttle valve 8 are communicated with the auxiliary fuel tanks 11, 12. When a liquid level descends by evaporation of a low boiling point component and the float interlocking valve 9 is opened, fuel is supplied to the auxiliary fuel tanks 11, 12. At the engine starting time or for some time after starting, the fuel inside the auxiliary fuel tanks 11, 12 is flowed through the sub-nozzles 13, 14 by a negative pressure of the engine for increasingly correcting the amount of the fuel.

10. 发明专利

JPH04330356A AIR-FUEL RATIO CONTROL DEVICE FOR CARBURETOR 失效
公开(公告)号：JPH04330356A
公开(公告)日：1992-11-18
申请号：JP12300091
申请日：1991-04-26
申请人： TOYOTA MOTOR CORP , AISAN IND
发明人： NOGAMI SUSUMU , II AKIRA , ISOTANI YUKINORI , HOTTA AKIYOSHI , TSUGE TAKASHI , WATABE TSUTOMU
IPC分类号： F02D9/02 , F02M3/14 , F02M7/06 , F02M9/12 , F02M19/06
摘要： PURPOSE:To maintain an air-fuel ratio at a proper value even when a throttle valve is opened during closing a subvalve, in a carburetor having a subvalve located on the downstream side of the throttle valve. CONSTITUTION:In a carburetor wherein a subvalve 21 to change the cross section of the flow passage of an intake passage is located in an intake passage 17 on the downstream side of a throttle valve 19, an idle port 43 being a fuel feed passage opened to the downstream of the subvalve 21 during closing operation of the subvalve 21 is provided. Correction of the increase of fuel owing to an applying negative pressure is carried out.

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