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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

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

3. 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

4. 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

5. 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

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

JP2005054586A Fuel supply device for liquefied petroleum gas internal combustion engine 审中-公开
标题翻译：用于液化石油气内燃机的燃油供应装置
公开(公告)号：JP2005054586A
公开(公告)日：2005-03-03
申请号：JP2003205604
申请日：2003-08-04
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 , SAIKI TOSHISHIGE
IPC分类号： F02M21/02 , F02D19/02 , F02D41/04 , F02D45/00
CPC分类号： Y02T10/32
摘要： PROBLEM TO BE SOLVED: To provide a fuel supply device for effectively controlling an air-fuel ratio even when ethane and pentane are contained by measuring fuel pressure and fuel temperature and calculating the component ratio and fuel density of fuel in accordance therewith to find an injection timing for an injection valve.
SOLUTION: A vapor pressure curve stored in an ECU 50 is used for estimating the ratio of propane to butane assumed as an ethane content in accordance with fuel pressure and fuel temperature detected by a fuel pressure sensor 40 and a fuel temperature sensor 41, respectively. In accordance with the estimated value, the fuel density is also calculated to calculate the injection timing for the injection valve 27 to be controlled. The ECU 50 calculates an air excess rate from a signal from an air-fuel ratio sensor. When it is lean, the injection timing is corrected with the component ratio of ethane increased by a fixed quantity from zero and this is repeated to converge the air-fuel ratio into a theoretical air-fuel ratio.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种即使当通过测量燃料压力和燃料温度来包含乙烷和戊烷也能有效地控制空燃比并且计算燃料的组分比和燃料密度的燃料供应装置，根据找到注射阀的注射时间。解决方案：存储在ECU50中的蒸气压曲线用于根据由燃料压力传感器40和燃料温度传感器41检测到的燃料压力和燃料温度来估计假定为乙烷含量的丙烷与丁烷的比例，分别。根据估计值，还计算燃料密度以计算要控制的喷射阀27的喷射正时。 ECU50根据来自空燃比传感器的信号计算空气过剩率。当它是稀的时，喷射定时被校正，其中乙烷的组分比从零增加固定量，并且这被重复以将空燃比收敛成理论空燃比。版权所有（C）2005，JPO＆NCIPI

8. 发明专利

JP2006257968A Fuel injection control device for internal combustion engine 审中-公开
标题翻译：用于内燃机的燃油喷射控制装置
公开(公告)号：JP2006257968A
公开(公告)日：2006-09-28
申请号：JP2005076487
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： ASANUMA DAISAKU , SAIKI TOSHISHIGE
IPC分类号： F02D41/20 , F02D41/34
CPC分类号： Y02T10/44
摘要： PROBLEM TO BE SOLVED: To highly accurately inject a minute amount of fuel corresponding to a required injection time shorter than a peak current application time, as requested.
SOLUTION: A fuel injection control device 2 has an injector 6 for high-pressure fuel and an electronic control unit (ECU) 20. A final injection time is calculated based on the required injection time depending on engine operational status, and an invalid injection time for correcting the required injection time. The ECU 20 makes the injector 6 open by energization according to the final injection time and makes the injector 6 inject fuel to the engine 1, the ECU applies a predetermined peak current to quickly open the injector 6 in the start of the energization, and then controls the injector 6 by applying a holding current smaller than the peak current to hold the valve open state. When the requested injection time is shorter than the peak current application time, the ECU 20 corrects the invalid injection time depending on difference in required injection time.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：根据要求高精度地喷射对应于比峰值电流施加时间短的要求喷射时间的微量燃料。解决方案：燃料喷射控制装置2具有用于高压燃料的喷射器6和电子控制单元（ECU）20。根据发动机运行状态，根据所需的喷射时间计算最终喷射时间，无效的注射时间用于校正所需的注射时间。 ECU20通过根据最终喷射时间的通电使喷射器6打开，并且使喷射器6向发动机1喷射燃料，ECU在通电开始时施加预定的峰值电流以快速打开喷射器6，然后通过施加小于峰值电流的保持电流来控制注射器6以保持阀打开状态。当请求的喷射时间比峰值电流施加时间短时，ECU20根据所需喷射时间的差异校正无效喷射时间。版权所有（C）2006，JPO＆NCIPI

9. 发明专利

JP2006077584A Liquefied gas fuel supply device 有权
标题翻译：液化气燃料供应装置
公开(公告)号：JP2006077584A
公开(公告)日：2006-03-23
申请号：JP2004259522
申请日：2004-09-07
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： TSUTSUI DAISUKE , KOMODA TAKAO , SAIKI TOSHISHIGE
IPC分类号： F02M21/02 , F02B43/00 , F02D45/00
CPC分类号： Y02T10/32
摘要： PROBLEM TO BE SOLVED: To provide a liquefied gas fuel supply device capable of detecting entry of air into a fuel tank.
SOLUTION: In a fuel supply device 10, by using a phenomenon that fuel composition in the fuel tank 11 and fuel composition in a branch pipe 15 are different if air enters the fuel tank 11 when an engine is cold (S2:YES, S3:YES), an ECU 18 judges that air enters the fuel tank 11 when fuel pressure in the fuel tank 11 is higher by a predetermined value than fuel pressure in the branch pipe 15 (S4:YES). After it is determined that air enters the fuel tank 11, the ECU 18 lights a warning lamp 35 (S6).
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供能够检测空气进入燃料箱的液化气燃料供给装置。解决方案：在燃料供给装置10中，通过使用燃料箱11中的燃料成分和分支管15中的燃料成分在发动机冷时空气进入燃料箱11的情况不同的现象（S2：是，S3：是），当燃料箱11中的燃料压力比分支管15中的燃料压力高预定值时，ECU 18判断空气进入燃料箱11（S4：是）。在确定空气进入燃料箱11之后，ECU 18点亮警告灯35（S6）。版权所有（C）2006，JPO＆NCIPI

10. 发明专利

JP2006307735A Fuel supply device of internal combustion engine 有权
标题翻译：内燃机燃油供应装置
公开(公告)号：JP2006307735A
公开(公告)日：2006-11-09
申请号：JP2005130923
申请日：2005-04-28
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： ASANUMA DAISAKU , SAIKI TOSHISHIGE
IPC分类号： F02M37/08 , F02B43/00 , F02D21/08 , F02D41/02 , F02D41/06 , F02D45/00 , F02M21/02 , F02M25/07
CPC分类号： Y02T10/123 , Y02T10/32
摘要： PROBLEM TO BE SOLVED: To surely open a fuel cut-off valve after maintenance despite the pressure difference between the front and rear pressures thereof.
SOLUTION: A fuel supply device 2 supplies fuel in a fuel tank 3 to a delivery pipe 7 and respective injectors 6 of an engine 1 through a fuel supply passage 5 by a fuel pump 4, and cuts off fuel in the fuel supply passage 5 by closing respective fuel cut-off valves 11, 12 provided to the fuel supply passage 5 when stopping the engine 1. When an electronic control unit (ECU) 20 determines that pressure differences between the front and rear pressures of respective fuel cut-off valves 11, 12 are a predetermined value or higher and when an ignition switch 17 is operated to a second position 17b to start the engine 1, the ECU 20 controls respective fuel cut-off valves 11, 12 to be opened and the fuel pump 4 and a starter 18 to be started after the open.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：即使在前后压力之间存在压力差，维护后仍可确保打开燃油截止阀。解决方案：燃料供应装置2通过燃料泵4通过燃料供给通道5将燃料箱3中的燃料供给到输送管7和发动机1的各个喷射器6，并且将燃料供给通过关闭在停止发动机1时设置到燃料供给通道5的各个燃料截止阀11,12的通道5.当电子控制单元（ECU）20确定各个燃料切断阀11的前后压力之间的压力差时，关闭阀11,12为规定值以上，当将点火开关17动作到第二位置17b以起动发动机1时，ECU20控制各燃料截止阀11,12打开，燃料泵 4和启动器18在开启之后启动。版权所有（C）2007，JPO＆INPIT

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