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1. 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

2. 发明专利

JP2003254104A LIQUEFIED GAS FUEL SUPPLY DEVICE 审中-公开
公开(公告)号：JP2003254104A
公开(公告)日：2003-09-10
申请号：JP2002100617
申请日：2002-02-26
申请人： AISAN IND , TOYOTA MOTOR CORP , NIPPON SOKEN
发明人： TSUJINO MUTSUMI , OMURA FUSAJI , SATO TORU , WAKABAYASHI MASAHARU , KAWAI TOSHIHIRO , UCHIDA MITSUNORI
IPC分类号： F02M21/02 , F02D19/02 , F02M37/00
摘要： PROBLEM TO BE SOLVED: To provide a liquefied gas fuel supply device for improving the filling performance of fuel by reducing a raised internal pressure of a fuel tank. SOLUTION: The fuel tank 2 is provided with a sub-fuel tank 15 communicated therewith through a communication pipe 17, and a manual valve 18 (communication valve) is mounted for opening and closing the communication pipe 17. When the internal pressure of the fuel tank 2 is higher than the predetermined pressure the manual valve 18 is opened when the internal pressure of the fuel tank 2 is reduced lower than the filling pressure, the valve 18 is closed to charge the fuel. As the valve 18 is opened or closed again after filling, the pressure in the fuel tank 2 can be reduced, and the filling performance of the fuel can be improved with a simple structure. COPYRIGHT: (C)2003,JPO

3. 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

4. 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.

5. 发明专利

JP2003083172A Liquefied gas fuel supply device 审中-公开
标题翻译：液化气燃料供应装置
公开(公告)号：JP2003083172A
公开(公告)日：2003-03-19
申请号：JP2001276906
申请日：2001-09-12
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： WAKABAYASHI MASAHARU , SATO TORU , UCHIDA MITSUNORI
IPC分类号： F02M21/02 , F02D19/02
CPC分类号： Y02T10/32
摘要： PROBLEM TO BE SOLVED: To improve the starting performance of an internal combustion engine by accurately regulating the amount of the injection fuel in an early stage in starting the internal combustion engine using liquefied gas as the fuel.
SOLUTION: The liquefied gas fuel is stored in the fuel supply piping between an upstream-side fuel cutoff valve and a downstream-side fuel cutoff valve in a state of pressurized fluid when an engine is stopped (S140-S170). Whereby bubbles are not generated in a storage part during the stop of the engine. Accordingly a time for compressing and liquefying the bubbles is omitted with respect to the fuel in the storage part, when the fuel is pressurized by a fuel pump in starting the engine, and the injectable fuel pressure is quickly applied to the liquefied fuel. Further, as the liquefied gas fuel in a state of the pressured liquid is supplied from the storage part to a delivery pipe side in starting, the regulation of the amount by the fuel injection valve is accurately performed from the early stage in starting, whereby the starting performance of the engine is improved.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：通过使用液化气体作为燃料来启动内燃机的初期，通过精确地调节喷射燃料的量来提高内燃机的起动性能。解决方案：当发动机停止时，液化气体燃料在加压流体的状态下存储在上游侧燃料切断阀和下游侧燃料切断阀之间的燃料供给管路中（S140-S170）。在发动机停止期间，在存储部件中不产生气泡。因此，当起动发动机时燃料被燃料泵加压时，相对于储存部分中的燃料，省略了压缩和液化气泡的时间，并且可喷射的燃料压力迅速地施加到液化燃料。此外，由于在起动时将加压液体的液化气体燃料从储存部供给到输出管侧，因此从起动的早期准确地进行燃料喷射阀的量的调节，由此，发动机的起动性能得到提高。

6. 发明专利

JP2002349354A FUEL SUPPLYING EQUIPMENT FOR LIQUEFIED PETROLEUM GAS INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JP2002349354A
公开(公告)日：2002-12-04
申请号：JP2001155402
申请日：2001-05-24
申请人： AISAN IND , TOYOTA MOTOR CORP , NIPPON SOKEN
发明人： TSUJINO MUTSUMI , SATO TORU , OMURA FUSAJI , WAKABAYASHI MASAHARU , HAYASHI KENJI , SAIKI TOSHISHIGE , KAWAI TOSHIHIRO , YAMADA JUN
IPC分类号： F02M21/02 , F02M37/00
摘要： PROBLEM TO BE SOLVED: To provide a fuel supplying equipment for liquefied petroleum gas internal combustion engine, capable of maintaining the liquid phase more certainly just before supplying the liquid phase fuel in a fuel tank into an internal combustion engine. SOLUTION: A fuel tank, an injector for injecting fuel into an internal combustion engine, a piping for feeding the fuel in the fuel tank into the injector, a detecting means of the temperature in the tank for detecting the temperature in the fuel tank, a detecting means of the temperature in the piping for detecting the temperature in the piping, a detecting means of the pressure in the fuel tank for detecting the pressure in the fuel tank, a vaporization preventing means for preventing the fuel in the piping from vaporization, and a controlling means are provided, and the controlling means controls the controlling means, based on the temperature detected by the detecting means of the temperature in the tank, the pressure detected by the detecting means of the pressure in the tank, and the temperature detected by the temperature detecting means for detecting the temperature in the piping.

7. 发明专利

JP2002332917A INJECTOR FOR LPG 失效
公开(公告)号：JP2002332917A
公开(公告)日：2002-11-22
申请号：JP2001137704
申请日：2001-05-08
申请人： TOYOTA MOTOR CORP , AISAN IND , NIPPON SOKEN
发明人： KAWAI TOSHIHIRO , SATO TORU , YAMADA JUN
IPC分类号： F02M21/02
摘要： PROBLEM TO BE SOLVED: To provide an injector for LPG capable of restricting generation of icing around an injection hole of the injector for LPG. SOLUTION: (1) This injector 10 for LPG has a fuel injection passage 15 for fuel injected from an injection hole part ahead of the injection hole part 12 in the injector in a fuel injecting direction, and a movable part 17 disposed in the fuel injection passage 15. (2) The movable part 17 comprises a needle moved by fuel injected from the injection hole part 12 in the injector. The needle is spring-energized in the injection hole part direction of the injector.

8. 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.

9. 发明专利

JP2007182905A Fuel supply device of internal combustion engine 审中-公开
标题翻译：内燃机燃油供应装置
公开(公告)号：JP2007182905A
公开(公告)日：2007-07-19
申请号：JP2007103019
申请日：2007-04-10
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： WAKABAYASHI MASAHARU , KOMODA TAKAO , YASUNAGA KIMINORI , UCHIDA MITSUNORI , SATO TORU
IPC分类号： F02M21/02 , F02B43/04 , F02M21/04 , F02M31/125 , F02M69/00 , F02M69/04
CPC分类号： Y02T10/32
摘要： PROBLEM TO BE SOLVED: To provide a fuel supply device of an internal combustion engine capable of suitably making both compatible in restraint of vapor generation in a fuel injection valve and restraint of icing in an intake passage. SOLUTION: The fuel injection valve 17 for injecting and supplying liquefied petroleum gas LPG in a delivery pipe 23 into an intake port 16a of a cylinder head 16 of the internal combustion engine 10, is installed in an intake passage part 15 of an intake manifold 14. A phenol resin thermal insulation member 40 is arranged between the cylinder head 16 and the intake manifold 14. A fuel injection passage 42 having an opening part 43 is formed in an inner wall surface 16b of the intake port 16a of the cylinder head 16 by reaching the intake port 16a via the intake manifold 14, the thermal insulation member 40 and the cylinder head 16 in order from a nozzle port 17a of the fuel injection valve 17. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种内燃机的燃料供给装置，其能够适当地兼顾燃料喷射阀中的蒸气产生的限制和进气通道中的结冰。解决方案：用于将输送管23中的液化石油气注入并供给内燃机10的气缸盖16的进气口16a的燃料喷射阀17安装在内燃机10的进气通道部分15中进气歧管14.在气缸盖16和进气歧管14之间设置酚醛树脂绝热构件40.具有开口部43的燃料喷射通道42形成在气缸的进气口16a的内壁表面16b中头16通过进气歧管14，隔热构件40和气缸盖16从燃料喷射阀17的喷嘴口17a顺序到达进气口16a。版权所有（C）2007，JPO＆INPIT

10. 发明专利

JP2003328857A Fuel supply device for internal combustion engine 有权
标题翻译：用于内燃机的燃油供应装置
公开(公告)号：JP2003328857A
公开(公告)日：2003-11-19
申请号：JP2002140523
申请日：2002-05-15
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 , F02M55/02
CPC分类号： Y02T10/123 , Y02T10/32
摘要： PROBLEM TO BE SOLVED: To provide a fuel supply device for an internal combustion engine, suitably and compatibly serving vapor removal from a fuel injection mechanism and temperature rise suppression of a fuel in a tank while suppressing the enlargement of the device scale to the utmost.
SOLUTION: The fuel supply device comprises a main circulation passage Rd2 for circulating the fuel forcibly fed by the fuel tank 31 via the fuel injection mechanism 34 to the fuel tank 31 and a bypass Rd4 for circulating it from the upstream side of the fuel injection mechanism 34 to the fuel tank 31. The main circulation passage Rd2 contains a high pressure regulator 36 for keeping fuel pressure in the fuel injection mechanism 34 at a first pressure regulating set value and a communication control valve 37. On the other hand, the bypass Rd4 contains a low pressure regulator for keeping the fuel pressure in the fuel injection mechanism 34 at a second pressure regulating set value lower than the first pressure regulating set value and a bypass control valve 40. A fuel circulation mode of the fuel supply device 3 is changed over through the opening/closing operation of the control valves 37, 40.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：为了提供一种用于内燃机的燃料供应装置，适当兼容地从燃料喷射机构进行蒸气除去，并且抑制罐内的燃料的温度上升，同时抑制装置的尺寸扩大到最大的。解决方案：燃料供给装置包括主循环通道Rd2，用于将经燃料喷射机构34强制供给的燃料经由燃料喷射机构34循环到燃料箱31和用于使燃料箱31的上游侧循环的旁路Rd4 燃料喷射机构34连接到燃料箱31.主循环通道Rd2包含用于将燃料喷射机构34中的燃料压力保持在第一压力调节设定值和连通控制阀37的高压调节器36.另一方面，旁路Rd4包含用于将燃料喷射机构34中的燃料压力保持在低于第一压力调节设定值的第二压力调节设定值和旁通控制阀40的低压调节器。燃料供给装置的燃料循环模式 3通过控制阀37,40的打开/关闭操作切换。版权所有（C）2004，JPO

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