专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

21. 发明专利

JPS57102530A METHOD OF CONTROLLING FUEL INJECTION IN INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPS57102530A
公开(公告)日：1982-06-25
申请号：JP17654380
申请日：1980-12-16
申请人： TOYOTA MOTOR CO LTD
发明人： KOMODA TAKAO
IPC分类号： F02D41/04
摘要： PURPOSE:To increase/decrease a fuel injection rate with actual variation of an engine load when variation of basic fuel injection time exceeds the specified value, by varying the load correction value and thereby varying the fuel injection time. CONSTITUTION:A cylinder block 2 is provided with a water temperature sensor 21, which detects the temperature of engine cooling water, while inside an exhaust manifold 13, an oxygen density detecting sensor 22 is fitted, and these sensors are connected to an electronic control unit 14. An airflow meter 17 is equipped with a flow meter 24, which rotates with an inhaled air flow rate. This rate of rotation is converted into voltage, and the voltage proportional to an inhaled air flow rate is transmitted to the electronic control unit 14. Branch pipes 11 are provided with fuel injection valves 15 each, which are controlled by an output signal from the control unit 14, and the fuel is injected toward inhaling ports 7, which each correspond to injection valve 15.

22. 发明专利

JP2003035181A Air/fuel ratio control device for internal combustion engine for liquefied petroleum gas 有权
标题翻译：用于液化石油气的内燃机用空燃比比控制装置
公开(公告)号：JP2003035181A
公开(公告)日：2003-02-07
申请号：JP2001221504
申请日：2001-07-23
申请人： Aisan Ind Co Ltd , Nippon Soken Inc , Toyota Motor Corp , トヨタ自動車株式会社 , 愛三工業株式会社 , 株式会社日本自動車部品総合研究所
发明人： KOMODA TAKAO , SATO TORU , YAMADA JUN
IPC分类号： F02M21/02 , F02D19/02 , F02D41/02 , F02D41/04 , F02D41/34 , F02D45/00
CPC分类号： Y02T10/32
摘要： PROBLEM TO BE SOLVED: To provide an air/fuel ratio control device for an internal combustion engine for liquefied petroleum gas, whereby a stable air/fuel ratio is obtained, without being affected by the temperature of an injector metering zone which changes due to various operation conditions.
SOLUTION: An evaporative cooling amount DTf from a delivery pipe to each injector metering zone is calculated based on a rotation speed Ne and a load referring to a map (step S106), and the temperature of the metering zone is estimated, by using the evaporative cooling amount DTf and the fuel temperature Tf of the delivery pipe (step S108). A fuel density correction coefficient KTinj is calculated, by using the above estimated value Tinj referring to the map (step S110), and a basic injection time TAU of each injector is corrected, based on the above correction coefficient KTinj (step S112). Thereby, even if the fuel density in each injector metering zone is changed with temperature, a fuel injection amount in the same injection time can be prevented from changing.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供一种用于液化石油气的内燃机的空燃比控制装置，由此获得稳定的空燃比，而不受由于各种变化而改变的喷射计量区的温度的影响操作条件。解决方案：根据转速Ne和参照地图的载荷计算从输送管到每个喷射计量区域的蒸发冷却量DTf（步骤S106），并且通过使用蒸发器来计算计量区域的温度冷却量DTf和输送管的燃料温度Tf（步骤S108）。基于上述校正系数KTinj，通过使用上述估计值Tinj参照地图计算燃料密度校正系数KTinj（步骤S110），校正每个喷射器的基本喷射时间TAU（步骤S112）。因此，即使各喷射计量区域的燃料密度随着温度而变化，也能够防止喷射时间相同的燃料喷射量发生变化。

23. 发明专利

JP2004044504A Fuel supply device for liquefied gas internal combustion engine 有权
公开(公告)号：JP2004044504A
公开(公告)日：2004-02-12
申请号：JP2002204211
申请日：2002-07-12
申请人： Aisan Ind Co Ltd , Nippon Soken Inc , Toyota Motor Corp , トヨタ自動車株式会社 , 愛三工業株式会社 , 株式会社日本自動車部品総合研究所
发明人： KOMODA TAKAO , HAYASHI KENJI , SAIKI TOSHISHIGE , SATO TORU , UCHIDA MITSUNORI
IPC分类号： F02M21/02 , F02D19/02 , F02M31/20 , F02M37/00
CPC分类号： Y02T10/123 , Y02T10/32
摘要： PROBLEM TO BE SOLVED: To provide a fuel supply device for liquified gas internal combustion engine capable of maintaining a fuel tank in a condition wherein fuel supply from the outside is possible. SOLUTION: In this fuel supply device, liquid phase fuel stored in the fuel tank 31 in a saturation state is force-fed by a fuel pump 32, the force-fed liquid phase fuel is injected and supplied to the internal combustion engine by a liquid phase fuel injector LIN, and the fuel in a delivery pipe 35 is circulated to the fuel tank 31 through a circulation passage Rd2. An oil feeding pressure, which is a pressure of the fuel pressurized and supplied from a fuel tank of an oil supply stand to the fuel tank 31 is calculated based on a saturation vapor characteristic of the fuel in the fuel tank 31 and an outside temperature. When the pressure of the fuel in the fuel tank 31 is equal to or more than the oil feeding pressure, gas phase fuel in the fuel tank 31 is supplied to the internal combustion engine by a gas phase fuel injector GIN. COPYRIGHT: (C)2004,JPO

24. 发明专利

JP2003201940A FUEL SUPPLYING DEVICE FOR INTERNAL COMBUSTION ENGINE 审中-公开
公开(公告)号：JP2003201940A
公开(公告)日：2003-07-18
申请号：JP2001401038
申请日：2001-12-28
申请人： TOYOTA MOTOR CORP , AISAN IND , NIPPON SOKEN
发明人： KOMODA TAKAO , HAYASHI KENJI , SAIKI TOSHISHIGE , SATO TORU , UCHIDA MITSUNORI
IPC分类号： F02M21/02 , F02D41/02 , F02D41/06 , F02D45/00 , F02M37/00 , F02M37/20 , F02M69/00
摘要： PROBLEM TO BE SOLVED: To provide a fuel supplying device for an internal combustion engine capable of suitably keeping a liquid phase state of fuel in a fuel injection mechanism while suppressing a load of a fuel pump. SOLUTION: In this fuel supplying device, fuel stored in a fuel tank 31 is supplied to the fuel injection mechanism 35 by pressure. An upstream side of the fuel injection mechanism 35 (24, 36) and a vapor phase portion of the fuel tank 31 are connected by a bypass route R2, and a pressure regulator 37 is provided in the bypass route R2. A downstream side of the fuel injection mechanism 35 and the vapor phase portion of the fuel tank 31 are connected by a reflux route R3, and a solenoid valve 38 is provided in the reflux route R3. An upstream side and a downstream side of the solenoid valve 38 in the reflux route R3 communicate by an alternative route R4, and a throttle mechanism 39 is provided in the alternative route R4. By opening/closing operation of the solenoid valve 38, the flow amount of fuel press-sent to the fuel injection mechanism 35 is controlled. COPYRIGHT: (C)2003,JPO

25. 发明专利

JP2003090237A FUEL SUPPLIER FOR INTERNAL COMBUSTION ENGINE 审中-公开
公开(公告)号：JP2003090237A
公开(公告)日：2003-03-28
申请号：JP2001281623
申请日：2001-09-17
申请人： TOYOTA MOTOR CORP , AISAN IND , NIPPON SOKEN
发明人： KOMODA TAKAO , SATO TORU , YAMADA JUN
IPC分类号： F02B43/00 , F02D19/02 , F02D41/04 , F02D45/00 , F02M21/02
摘要： PROBLEM TO BE SOLVED: To provide a fuel supplier for an internal combustion engine which performs more adequate fuel injection corresponding to even when changing a composition and a condition of fuel. SOLUTION: This fuel supplier for an internal combustion engine, based on a fuel temperature (tank fuel temperature TT) and a fuel pressure (tank fuel pressure TP) of liquefied petroleum gas in a fuel tank 21, estimates a fuel composition (propane ratio R) to calculate a saturated vapor pressure curve of the liquefied petroleum gas. From these saturated vapor pressure curve and tank fuel temperature TT, a saturated vapor pressure ESP of the liquefied petroleum gas in a fuel injection mechanism 26 is obtained, based on these saturated vapor pressure ESP and tank fuel pressure TP, a condition of the liquefied petroleum gas in the fuel injection mechanism 26 is estimated. When the condition of the liquefied petroleum gas in the fuel injection mechanism 26 is estimated to be not in a liquid phase, a valve opening time T0 of a fuel injection valve 20 is corrected.

26. 发明专利

JP2002303213A GAS FUEL INJECTION DEVICE 审中-公开
公开(公告)号：JP2002303213A
公开(公告)日：2002-10-18
申请号：JP2001219960
申请日：2001-07-19
申请人： TOYOTA MOTOR CORP , AISAN IND , NIPPON SOKEN
发明人： KOMODA TAKAO , ARIMA TERUYOSHI , SATO TORU , ASANUMA DAISAKU , YAMADA JUN , KANEHARA KENJI
IPC分类号： F02M21/06 , F02M21/02 , F02M37/00 , F02M53/04 , F02M61/04 , F02M61/18
摘要： PROBLEM TO BE SOLVED: To provide a gas fuel injection device capable of restricting generation of icing by vaporization heat of fuel in spite of simple constitution. SOLUTION: In an injector 1, an expansion chamber 10 for vaporizing compression fuel into gas fuel is formed in the middle of an injection passage 4 to communicate a fuel chamber 3 to which compression fuel pressurized and liquefied is introduced with an injection port 5. As a needle valve 6 is driven, the fuel chamber 3 is communicated with the injection port 5, and compression fuel introduced into the fuel chamber 3 passes the injection passage 4 to be vaporized in the expansion chamber 10 provided in the middle of it to be then injected from the injection port 5. Vaporization of fuel is thus conducted in the expansion chamber 10, whereby generation of icing at peripheral parts of the injection port 5 by cooling by vaporization heat is restricted.

27. 发明专利

JP2004076665A Fuel supply system for liquefied gas internal combustion engine 审中-公开
标题翻译：液化气内燃机燃油供应系统
公开(公告)号：JP2004076665A
公开(公告)日：2004-03-11
申请号：JP2002239180
申请日：2002-08-20
申请人： Aisan Ind Co Ltd , Nippon Soken Inc , Toyota Motor Corp , トヨタ自動車株式会社 , 愛三工業株式会社 , 株式会社日本自動車部品総合研究所
发明人： KOMODA TAKAO , SATO TORU , UCHIDA MITSUNORI
IPC分类号： F02M21/02 , F02D19/02 , F02D41/34 , F02D45/00 , F02M37/00
CPC分类号： Y02T10/123 , Y02T10/32
摘要： PROBLEM TO BE SOLVED: To provide a fuel supply system for liquefied gas internal combustion engine capable of suitably suppressing the deterioration in supplying precision of fuel according to the supply of gas phase fuel. SOLUTION: This fuel supply system for liquefied gas internal combustion engine comprises a liquid phase fuel supplying system for injecting and supplying liquid phase fuel in a fuel tank to an internal combustion engine 1 through a liquid phase fuel injector LIN, and a gas phase fuel supplying system for supplying gas phase fuel in the fuel tank through a gas phase fuel injector GIN. The inclusion of a gas other than fuel LPG in the fuel tank is monitored. When the fuel quantity required for the operation of the internal combustion engine 1 is a prescribed fuel quantity or more in the case where the inclusion of gas other than the fuel is confirmed, a minimum gas phase injection quantity of gas phase fuel by the gas phase fuel injector GIN is supplied to the internal combustion engine 1. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种能够根据气相燃料的供给适当地抑制供给燃料精度的劣化的液化气体内燃机的燃料供给系统。解决方案：该液化气内燃机的燃料供给系统包括：液相燃料供给系统，用于通过液相燃料喷射器LIN向燃料箱1内喷射并供给液相燃料至内燃机1，用于通过气相燃料喷射器GIN在燃料箱中供应气相燃料。监测在燃料箱中包含燃料LPG以外的气体。在确认了包含燃料以外的气体的情况下，内燃机1的运转所需的燃料量为规定燃料量以上时，气相燃料的最低气相喷射量燃料喷射器GIN被供给到内燃机1.版权所有（C）2004，JPO

28. 发明专利

JP2003239788A FUEL SUPPLY DEVICE OF INTERNAL COMBUSTION ENGINE 审中-公开
公开(公告)号：JP2003239788A
公开(公告)日：2003-08-27
申请号：JP2002222081
申请日：2002-07-30
申请人： TOYOTA MOTOR CORP , AISAN IND , NIPPON SOKEN
发明人： KOMODA TAKAO , SATO TORU , UCHIDA MITSUNORI
IPC分类号： F02M21/02 , F02D19/02 , F02D41/04 , F02D41/06 , F02D45/00 , F02M21/06 , F02M37/00 , F02M51/00 , F02M55/00 , F02M69/00
摘要： PROBLEM TO BE SOLVED: To provide a fuel supply device of an internal combustion engine which maintains the appropriate liquid phase state of the fuel in a fuel injection mechanism. SOLUTION: In the fuel supply device, the fuel reserved in a fuel tank 31 is force-fed to the fuel injection mechanism 34. The downstream side of the fuel injection mechanism 34 (35, INJ) and the gas phase part of the fuel tank 31 are connected by a circulation pathway R2, to which a primary pressure regulator 36 and a secondary pressure regulator 37 are attached. The upstream and downstream of the secondary pressure regulator in the circulation pathway R2 are made to communicate with each other by an auxiliary circulation pathway R3 to which a solenoid valve 38 is attached. When the internal combustion engine 1 is stopped, the solenoid valve 38 is opened, and the driving of a fuel pump 32 is continued till a prescribed period of time elapses after the stop of the internal combustion engine 1. COPYRIGHT: (C)2003,JPO

29. 发明专利

JP2004052713A Fuel supply system for internal combustion engine 审中-公开
公开(公告)号：JP2004052713A
公开(公告)日：2004-02-19
申请号：JP2002213933
申请日：2002-07-23
申请人： Aisan Ind Co Ltd , Nippon Soken Inc , Toyota Motor Corp , トヨタ自動車株式会社 , 愛三工業株式会社 , 株式会社日本自動車部品総合研究所
发明人： KOMODA TAKAO , SATO TORU , UCHIDA MITSUNORI
IPC分类号： F02M21/02 , F02M37/00 , F02M37/20
CPC分类号： Y02T10/123 , Y02T10/32
摘要： PROBLEM TO BE SOLVED: To provide a fuel supply system for an internal combustion engine capable of stably supplying fuel to the internal combustion engine while suppressing the occurrence of a vapor lock phenomenon even when one of two series-connected fuel pumps stops.
SOLUTION: This system is provided with two series-connected fuel pumps which are a first fuel pump 24 and a second fuel pump 25. The fuel (liquefied petroleum gas) sucked and force-fed from a fuel tank 21 through the fuel pumps 24, 25 is injected and supplied to the internal combustion engine 10 through a fuel injection mechanism 18. When fuel pressure in a fuel passage 26 communicating the first fuel pump 24 with the second fuel pump 25 is lower than fuel pressure in the fuel tank 21, the fuel in the fuel tank 21 is supplied to the second fuel pump 25, bypassing the first fuel pump 24.
COPYRIGHT: (C)2004,JPO

30. 发明专利

JP2004044503A Fuel system for internal combustion engine 有权
标题翻译：内燃机燃油系统
公开(公告)号：JP2004044503A
公开(公告)日：2004-02-12
申请号：JP2002204210
申请日：2002-07-12
申请人： Aisan Ind Co Ltd , Nippon Soken Inc , Toyota Motor Corp , トヨタ自動車株式会社 , 愛三工業株式会社 , 株式会社日本自動車部品総合研究所
发明人： KOMODA TAKAO , SATO TORU , UCHIDA MITSUNORI
IPC分类号： F02M21/02 , F02D19/02 , F02M21/06 , F02M37/00
CPC分类号： Y02T10/123 , Y02T10/32
摘要： PROBLEM TO BE SOLVED: To provide a fuel system for an internal combustion engine capable of suitably retaining a liquid phase state of fuel in a fuel injection mechanism while suppressing increase of the load of a fuel pump. SOLUTION: This fuel system for the internal combustion engine comprises a first back pressure introducing route Rd3 for introducing fuel circulating in a downstream side recirculation route Rd2L to the back pressure chamber 36Rp of a pressure regulator 36, a first fuel pump 32a and a second fuel pump 32b which are arranged in series, a second back pressure introducing route Rd4 for introducing fuel circulating in a fuel route Rdp between pumps to connect the fuel pumps 32a, 32b to each other to the back pressure chamber 36Rp, and a three-port valve 37 for communicating one of these back pressure introducing routes Rd3, Rd4 with a back pressure introducing route Rd5. A prescribed pressure regulation set value set by the pressure regulator 36 through the switching operation of the three-port valvae 37 is varied. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种能够在抑制燃料泵的负荷增加的同时在燃料喷射机构中适当地保持燃料的液相状态的内燃机的燃料系统。该解决方案：用于内燃机的燃料系统包括用于将在下游侧再循环路径Rd2L中循环的燃料引导到压力调节器36的背压室36Rp的第一背压引入路径Rd3，第一燃料泵32a和第二燃料泵32b，其串联设置有第二反压引入路径Rd4，用于将燃料路径Rdp中循环的燃料引入泵之间，以将燃料泵32a，32b彼此连接到背压室36Rp;以及三 - 用于将这些背压引入路径Rd3，Rd4中的一个与背压引入路径Rd5通信的端口阀37。通过三端口阀37的切换操作由压力调节器36设定的规定的压力调节设定值发生变化。版权所有（C）2004，JPO

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式