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1. 发明专利

JP2004239064A Fuel supply device of internal combustion engine 有权
公开(公告)号：JP2004239064A
公开(公告)日：2004-08-26
申请号：JP2003025703
申请日：2003-02-03
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： TSUJINO MUTSUMI , SAIKI TOSHISHIGE , UCHIDA MITSUNORI
IPC分类号： F02M21/02 , F02D41/20 , F02M37/00 , F02M51/00 , F02M55/02
CPC分类号： Y02T10/123 , Y02T10/32
摘要： PROBLEM TO BE SOLVED: To restrain the deterioration in filling performance such as fuel filling time becomes long since the inside of a fuel tank becomes a high temperature and high pressure when fuel in a fuel delivery pipe 8 rises in the temperature by heat of an engine and returns in the fuel tank 11 from a circulating passage 16.
SOLUTION: A temperature and pressure of LPG in the fuel tank 11 are detected by a fuel temperature sensor 21 and a fuel pressure sensor 22, and a corresponding vapor pressure curve is specified by comparing a detecting result with a plurality of LPG vapor pressure curves different in the composition stored in an ECU 20. A fuel state in the delivery pipe 8 is detected by a fuel temperature sensor 23 and a fuel pressure sensor 24, and when determining that the fuel in the delivery pipe is not vaporized on the basis of the detecting result and the specified vapor pressure curve, the ECU 20 closes a switching valve 19, and stops the circulation of the fuel.
COPYRIGHT: (C)2004,JPO&NCIPI

2. 发明专利

JP2009191855A Fuel injection system for internal combustion engine 有权
标题翻译：内燃机燃油喷射系统
公开(公告)号：JP2009191855A
公开(公告)日：2009-08-27
申请号：JP2009135160
申请日：2009-06-04
申请人： Nippon Soken Inc , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社日本自動車部品総合研究所
发明人： YAMADA JUN , KANEHARA KENJI , KOHAMA TOKIO , HAYASHI KENJI , TSUJI NAOKI , SAIKI TOSHISHIGE , MIZOBUCHI TAKASHI , ANEZAKI YUKINOBU , YASUNAGA KIMINORI
IPC分类号： F02D19/08 , F02M21/02 , F02M21/04 , F02M69/00
CPC分类号： F02M21/0212 , F02D19/027 , F02M21/0245 , F02M21/0278 , F02M21/0281 , F02M21/0284 , F02M21/0287 , Y02T10/32
摘要： PROBLEM TO BE SOLVED: To provide a fuel injection system having a simple construction for achieving fuel injection with high control accuracy even when vapor occurs. SOLUTION: The fuel injection system comprises a liquid phase LPG supply system 31 for supplying liquefied fuel gas stored in a fuel tank 30 to a liquid spray injector 21 in a liquid phase condition, and a gas phase LPG supply system 32A for supplying the liquefied fuel gas stored in the fuel tank 30 to a gas phase fuel injection means 22B in a gas phase condition. On the midway of a gas phase LPG supply pipe 320 as part of the gas phase LPG supply system 32A, a relief valve 321 is provided where a direction from the side of the fuel tank 30 toward the side of the gas phase fuel injection means 22B is set as a forward direction. An ECU 6 selects the opening/closing of the liquid spray injector 21 and the gas phase fuel injection means 22B, and uses the gas phase fuel injection means 22B for correcting injection during the injection of the liquid injector 21 at starting. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种具有简单结构的燃料喷射系统，即使在发生蒸气时也能以高控制精度实现燃料喷射。解决方案：燃料喷射系统包括：液相LPG供应系统31，用于将储存在燃料箱30中的液化燃料气体供应到液相状态的液体喷射喷射器21;以及气相LPG供应系统32A，用于供应储存在燃料箱30中的液化燃料气体成为气相状态的气相燃料喷射装置22B。在作为气相LPG供给系统32A的一部分的气相LPG供给管320的中途设置有从燃料箱30侧朝向气相燃料喷射单元22B侧的方向的安全阀321 被设置为向前方向。 ECU6选择液体喷射喷射器21和气相燃料喷射装置22B的打开/关闭，并且在启动时使用气相燃料喷射装置22B来校正喷射器21期间的喷射。版权所有（C）2009，JPO＆INPIT

3. 发明专利

JP2004183547A Method and device for scavenging liquid phase fuel in liquefied gas fuel feeder 有权
标题翻译：用于在液化石油气给料器中切割液相燃料的方法和装置
公开(公告)号：JP2004183547A
公开(公告)日：2004-07-02
申请号：JP2002350901
申请日：2002-12-03
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： TSUJINO MUTSUMI , SAIKI TOSHISHIGE , UCHIDA MITSUNORI
IPC分类号： F02M21/02
CPC分类号： Y02T10/32
摘要： PROBLEM TO BE SOLVED: To safely carry out maintenance such as replacement of a liquid phase injector by burning and scavenging high-pressure liquid phase fuel remaining inside liquid phase piping in an engine.
SOLUTION: This liquefied gas fuel feeder comprises the liquid phase injector 9 for supplying the liquid phase fuel in a fuel tank 11 to the engine through the liquid phase piping 13 in a liquid state, and a gas phase injector 8 for supplying gas phase fuel in the fuel tank 11 to the engine through a gas phase piping 21 in a gas state. A liquid phase main valve 14 and a gas phase main valve 22 are closed during the maintenance. Then the liquid phase piping 13 and the gas phase piping 21 are communicated with each other, and the gas phase injector 8 is operated, and the engine is started. The liquid phase fuel inside the liquid phase piping 13, 17 is vaporized and injected from the gas phase injector 8, thus consuming the fuel inside the piping.
COPYRIGHT: (C)2004,JPO&NCIPI
摘要翻译：要解决的问题：通过燃烧和清除发动机内部液相管道内残留的高压液相燃料来安全地进行维护，例如更换液相喷射器。解决方案：该液化气燃料供给器包括：液相喷射器9，用于通过液相管道13将燃料箱11中的液相燃料供给到发动机;液相喷射器8，用于供应气体通过气体状态的气相管道21将燃料箱11内的相燃料送入发动机。在维护期间，液相主阀14和气相主阀22关闭。然后，液相管路13和气相管路21相互连通，气相注入器8动作，发动机起动。液相管道13,17内的液相燃料从气相注入器8蒸发并喷射，从而消耗管道内部的燃料。版权所有（C）2004，JPO＆NCIPI

4. 发明专利

JP2004036599A Liquefied gas fuel feed device 有权
公开(公告)号：JP2004036599A
公开(公告)日：2004-02-05
申请号：JP2002232114
申请日：2002-07-05
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： TSUJINO MUTSUMI , OMURA FUSAJI , SATO TORU , SAIKI TOSHISHIGE , UCHIDA MITSUNORI
IPC分类号： F02M21/02 , F02D19/02 , F02D41/22 , F02D45/00
CPC分类号： Y02T10/32 , Y02T10/40
摘要： PROBLEM TO BE SOLVED: To provide a liquefied gas fuel device capable of easily detecting a leakage even if it occurs in a pipe at the downstream side of a fuel feed pipe and a delivery pipe and leaking no more of fuel to the outside.
SOLUTION: A pressure regulator 8 is attached to a downstream end of a return pipe 19 and is arranged in a fuel tank 2. When a difference of pressure of a fuel pressure of the delivery pipe 6 and a fuel pressure of the fuel tank becomes smaller than a predetermined value or reduction of the difference of pressure per a unit time becomes a predetermined value or higher, it is judged that the fuel pipe is damaged and a tank shut-off valve 14 and a delivery shut-off valve are closed. Therefore, even if the return pipe 19 or the like is damaged by an accident, prevention of the leakage of the fuel in the fuel tank 2 can be certainly enhanced.
COPYRIGHT: (C)2004,JPO

5. 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

6. 发明专利

JP2006257967A Liquified gas fuel feed device for internal combustion engine 审中-公开
标题翻译：用于内燃机的液化气燃料送料装置
公开(公告)号：JP2006257967A
公开(公告)日：2006-09-28
申请号：JP2005076486
申请日：2005-03-17
申请人： Aisan Ind Co Ltd , Toyota Motor Corp , トヨタ自動車株式会社 , 愛三工業株式会社
发明人： TSUJINO MUTSUMI , FUKAYA NORITAKA , SAIKI TOSHISHIGE
IPC分类号： F02M37/00 , F02M21/02
CPC分类号： Y02T10/123 , Y02T10/32
摘要： PROBLEM TO BE SOLVED: To prevent generation of vapor lock or the like in a fuel pump in a sub-tank.
SOLUTION: In a fuel feed device 2, LPG in a liquid state stored in a fuel tank 3 is press-fed by a fuel pump 4 to a delivery pipe 7 and each injector 6 to be injected and fed to an engine 1, the excess returned fuel in the delivery pipe 7 is returned to the fuel tank 3 by the return passage 8. The fuel tank 3 includes a main tank 3b and the sub-tank 3c, and the fuel pump 4 is disposed to the sub tank 3c. The return passage 8 includes a main tank return passage 8a and a sub-tank return passage 8b, and a three-directional selector valve 9 is disposed to the branch part therebetween. When the returned fuel temperature is lower than the tank fuel temperature, an electronic control unit 20 controls the three-directional selector valve 9 to return the returned fuel to the sub-tank 3c by the sub-tank return passage 8b. When the returned fuel temperature is higher than the tank fuel temperature, the electronic control unit 20 controls the three-directional selector valve 9 to return the returned fuel to the main tank 3b by the main tank return passage 8a.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了防止在副罐中的燃料泵中产生蒸气锁等。解决方案：在燃料供给装置2中，存储在燃料箱3中的处于液态的液化石油气被燃料泵4压送到输送管7，并且每个喷射器6被喷射并供给到发动机1 ，输送管7中的多余的返回燃料通过返回通道8返回到燃料箱3.燃料箱3包括主油箱3b和副油箱3c，燃料泵4设置在副油箱 3C。返回通道8包括主油箱返回通道8a和副油箱返回通道8b，并且三通切换阀9设置在其间的分支部分。当返回的燃料温度低于油箱燃料温度时，电子控制单元20控制三方向选择阀9，通过副油箱返回通道8b将返回的燃料返回到副罐3c。当返回的燃料温度高于油箱燃料温度时，电子控制单元20控制三向切换阀9，通过主油箱返回通道8a将返回的燃料返回主油箱3b。版权所有（C）2006，JPO＆NCIPI

7. 发明专利

JP2006002670A Heating system for liquefied gas fuel supply device 有权
标题翻译：液化石油气供应装置加热系统
公开(公告)号：JP2006002670A
公开(公告)日：2006-01-05
申请号：JP2004179994
申请日：2004-06-17
申请人： Fujitsu Ten Ltd , Toyota Motor Corp , トヨタ自動車株式会社 , 富士通テン株式会社
发明人： HAYASHI KENJI , KOMODA TAKAO , TORII MASANORI , SAIKI TOSHISHIGE , KOSAKA MOROYOSHI , TAGUCHI TOSHIMITSU
IPC分类号： F02M21/02 , F02M31/16 , F02M31/18
CPC分类号： Y02T10/32
摘要： PROBLEM TO BE SOLVED: To provide a heating system for a liquefied gas fuel supply device capable of effectively heating a carburetor even at time of engine cold start.
SOLUTION: The liquefied gas fuel supply device 11 gasifies liquefied gas fuel in a regulator 21 and supplies the same to an internal combustion engine 15. The device 11 is provided with a circulation passage 30 circulating engine cooling water between the regulator 21 and inside of the internal combustion engine 15. The circulation passage 30 is provided with a heat insulating vessel 31 storing engine cooling water.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供即使在发动机冷起动时也能够有效地加热化油器的液化气燃料供给装置的加热系统。解决方案：液化气燃料供给装置11将调节器21中的液化气燃料气化并将其供给内燃机15.装置11设置有循环通道30，循环通道30将发动机冷却水循环在调节器21和在内燃机15的内部。循环通道30设有储存发动机冷却水的绝热容器31。版权所有（C）2006，JPO＆NCIPI

8. 发明专利

JP2003027989A Internal combustion engine fuel supply system control method and control system 审中-公开
标题翻译：内燃机燃油供应系统控制方法与控制系统
公开(公告)号：JP2003027989A
公开(公告)日：2003-01-29
申请号：JP2001213593
申请日：2001-07-13
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： MIZUTANI KOICHI , SAIKI TOSHISHIGE
IPC分类号： F02M21/02 , F02D17/00 , F02D29/02 , F02D41/02 , F02D41/04 , F02D41/06
CPC分类号： Y02T10/32
摘要： PROBLEM TO BE SOLVED: To set a fuel supply system in a preparatory state for a startup during an engine stop and suppress degradation in startup performance in an internal combustion engine using a fuel supply system for supplying fuel substantially in a gaseous state. SOLUTION: If engine speed NE=0 (YES in S180), after a wait until NE0C=- KNE (YES in S190), a flow control valve is set in a fully open state (S210). This prevents a large quantity of fuel gas from being aspirated into an intake passage during a stop. Even upon an immediate startup, the intake passage without an excessive fuel concentration prevents a mixture of an excessive fuel concentration from being sucked into a combustion chamber. Stable combustion is thus realized from the initial stage of the startup irrespective of the length of the stop period to suppress degradation in startup performance. The fully open state of the flow control valve set before the startup supplies sufficient fuel gas in the startup and develops stable combustion to suppress degradation in startup performance.
摘要翻译：要解决的问题：将发动机停止期间的起动状态的燃料供给系统设定为使用基本上为气态的燃料供给用燃料供给系统的内燃机的起动性能的劣化。解决方案：如果发动机转速NE = 0（S180为“是”），则在等待NE0C = - KNE（S190为“是”）之后，将流量控制阀置于完全打开状态（S210）。这防止在停止期间大量的燃料气体被吸入进气通道。即使在立即起动时，没有过多燃料浓度的进气通道也防止过多燃料浓度的混合物被吸入燃烧室。因此，从启动的初始阶段实现稳定的燃烧，而与停止时间的长短无关，以抑制启动性能的劣化。启动前设置的流量控制阀的完全打开状态在启动时提供足够的燃料气体，并开发出稳定的燃烧，以抑制启动性能下降。

9. 发明专利

JP2006029143A Fuel supply device for liquified gas engine 有权
标题翻译：燃气发动机燃油供应装置
公开(公告)号：JP2006029143A
公开(公告)日：2006-02-02
申请号：JP2004206247
申请日：2004-07-13
申请人： Fujitsu Ten Ltd , Toyota Motor Corp , トヨタ自動車株式会社 , 富士通テン株式会社
发明人： KOMODA TAKAO , HAYASHI KENJI , TORII MASANORI , SAIKI TOSHISHIGE , KOSAKA MOROYOSHI , TAGUCHI TOSHIMITSU
IPC分类号： F02M21/06 , F02M21/02
CPC分类号： Y02T10/32
摘要： PROBLEM TO BE SOLVED: To provide a fuel supply device for a liquified gas engine, sufficiently evaporating fuel through a carburetor even in start of an engine. SOLUTION: The fuel supply device for a liquified gas engine comprises: a regulator 33 evaporating liquified gas fuel; a circulation circuit circulating cooling water between the regulator 33 and the engine 9; and an insulating container 51 storing the cooling water. The regulator 33 confines the high temperature cooling water stored in the insulating container 51 before the start of the engine 9. After the start of the engine 9 and when a fuel injection amount integration value since the regulator 33 has confined the cooling water becomes a determination integration value or more, the cooling water is released from the confinement. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供液化气体发动机的燃料供给装置，即使在发动机起动时也通过化油器充分蒸发燃料。解决方案：液化燃气发动机的燃料供应装置包括：调节器33蒸发液化气体燃料; 在调节器33和发动机9之间循环冷却水的循环回路; 以及储存冷却水的绝热容器51。调节器33限制在发动机9启动之前储存在绝热容器51中的高温冷却水。在发动机9启动之后，当调节器33限制冷却水的燃料喷射量积分值成为确定积分值以上，冷却水从限制释放。版权所有（C）2006，JPO＆NCIPI

10. 发明专利

JP2005233105A Control device for internal combustion engine 审中-公开
标题翻译：内燃机控制装置
公开(公告)号：JP2005233105A
公开(公告)日：2005-09-02
申请号：JP2004044197
申请日：2004-02-20
申请人： Fujitsu Ten Ltd , Toyota Motor Corp , トヨタ自動車株式会社 , 富士通テン株式会社
发明人： HAYASHI KENJI , KOMODA TAKAO , TORII MASANORI , SAIKI TOSHISHIGE , KOSAKA MOROYOSHI , TAGUCHI TOSHIMITSU
IPC分类号： F02P5/152 , F02D19/08 , F02D45/00 , F02M21/02 , F02P5/153
CPC分类号： Y02T10/32 , Y02T10/46
摘要： PROBLEM TO BE SOLVED: To enable to calculate appropriate KCS delayed angle initial value in an engine using liquefied petroleum gas as fuel. SOLUTION: This control device is constructed for an engine ECU to execute a program including a step S100 for detecting fuel pressure in a fuel tank, a step S110 for detecting fuel temperature in the tank, a step S120 for calculating ratio of propane in fuel based on detected tank inside furl pressure, tank inside fuel temperature and a propane ratio map, a step for calculating the KCS delay angle initial value based on calculated ratio of propane and a KCS delayed angle initial value map, and a step for calculating the KCS delayed angle initial value by increasing delayed angle when knocking occurs and by reducing delayed angle and advancing ignition timing when knocking does not occur. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了能够在使用液化石油气作为燃料的发动机中计算适当的KCS延迟角初始值。解决方案：该控制装置构造用于发动机ECU执行包括用于检测燃料箱中的燃料压力的步骤S100的程序，用于检测油箱中的燃料温度的步骤S110，计算丙烷比例的步骤S120 基于检测到的罐内部的压力，罐内燃料温度和丙烷比率图中的燃料，基于丙烷和KCS延迟角度初始值图的计算比率计算KCS延迟角初始值的步骤，以及用于计算通过在发生爆震时增加延迟角度并且通过在不发生爆震时减小延迟角度和提前点火正时来延迟角度初始值。版权所有（C）2005，JPO＆NCIPI

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