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    • 1. 发明专利
    • Fuel supply device
    • 燃油供应装置
    • JP2009281286A
    • 2009-12-03
    • JP2008134278
    • 2008-05-22
    • Denso CorpNippon Soken Inc株式会社デンソー株式会社日本自動車部品総合研究所
    • NARITA TAKAHIROAMANO NORIYASUKATO NAOYA
    • F02D41/04F02D41/02F02D41/06F02D41/34F02D45/00F02M25/08F02M37/00
    • Y02T10/123Y02T10/44
    • PROBLEM TO BE SOLVED: To provide a fuel supply device capable of restraining the generation of unburned components of fuel in starting of an engine, and improving the anti-knocking performance of the engine.
      SOLUTION: In the starting of the engine, bubbles are generated by a bubble generater (S102), light fuel is separated from fuel in a second tank, and gas fuel which is the light fuel is supplied (S104). When the start of the engine is completed (S108; Yes), the generation of the bubbles by the bubble generater is stopped (S110), and the liquid fuel in a first tank is supplied (S112). At this time, it is determined whether there is a possibility of the occurrence of knocking or not (S116), and heavy fuel is supplied (S118) when it is determined that there is the possibility of the occurrence of knocking.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种燃料供给装置,其能够抑制发动机起动时燃料的未燃烧成分的产生,提高发动机的防爆性能。 解决方案:在起动发动机时,由气泡发生器产生气泡(S102),轻燃料与第二罐中的燃料分离,供给作为轻燃料的气体燃料(S104)。 当发动机的启动完成(S108;是)时,通过气泡发生器产生气泡停止(S110),供给第一箱中的液体燃料(S112)。 此时,确定是否存在发生爆震的可能性,确定是否存在发生爆震的可能性(S116),并且提供重质燃料(S118)。 版权所有(C)2010,JPO&INPIT
    • 2. 发明专利
    • Fuel injection device
    • 燃油喷射装置
    • JP2009257175A
    • 2009-11-05
    • JP2008106593
    • 2008-04-16
    • Denso CorpNippon Soken Inc株式会社デンソー株式会社日本自動車部品総合研究所
    • MAEKAWA HITOSHIKIMURA YUSUKEKATO NAOYANARITA TAKAHIRO
    • F02M37/00F02D19/08F02D45/00F02M37/08F02M37/20F02M43/00F02M69/00
    • Y02T10/123
    • PROBLEM TO BE SOLVED: To provide a fuel injection device capable of optimizing the atomized state of the injected gas-liquid mixture fuel by adjusting the mixing amount of a gas to be included in a liquid fuel.
      SOLUTION: The fuel injection device 1 to supply the engine with the liquid fuel containing fine bubbles is equipped with a fuel pump 20 to feed by pressure the fuel sucked up from a fuel storage tank 10 to a fuel injection valve 30, a fine bubble mixing part 60 to make finer the gas and mix it with the liquid fuel fed by pressure by the fuel pump 20, and a gas supply part 50 to supply the gas to the fine bubble mixing part 60. In an ECU 70, the gas amount which optimizes the atomized condition in accordance with the engine operating condition is stored previously, and the ECU senses the engine operating condition and controls so that the stored gas amount corresponding to the operating condition is supplied from the gas supply means 50 into the liquid fuel.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 解决的问题:提供一种燃料喷射装置,其能够通过调节待包含在液体燃料中的气体的混合量来优化注入的气液混合物燃料的雾化状态。 解决方案:向发动机供给含有微小气泡的液体燃料的燃料喷射装置1配备有燃料泵20,以将从燃料储罐10吸入的燃料加压到燃料喷射阀30, 细气泡混合部60,使气体更细,并与燃料泵20的压力供给的液体燃料混合,以及将气体供给到微细混合部60的气体供给部50.在ECU70中, 先前存储了根据发动机工作状态优化雾化状态的气体量,ECU感应发动机运转状态并进行控制,使得与运转状态对应的储存气体量从气体供给装置50供给到液体 汽油。 版权所有(C)2010,JPO&INPIT
    • 4. 发明专利
    • FUEL VAPOR TREATMENT DEVICE FOR INTERNAL COMBUSTION ENGINE
    • JPH1113560A
    • 1999-01-19
    • JP18450297
    • 1997-06-24
    • NIPPON SOKENDENSO CORP
    • ITAKURA HIDEAKIKATO NAOYAMAEDA KAZUTO
    • F02M25/08
    • PROBLEM TO BE SOLVED: To prevent fuel vapor adsorbed to a canistor from being diffused and released to the atmosphere. SOLUTION: An air chamber F formed between a first chamber A and a second chamber B of a canistor 1 is divided into a first layer F1 on the side of the first chamber A and a second layer F2 on the side of the second chamber B. The first layer F1 communicates with the second layer F2 on the side of the second chamber B through a throttle. A passage 8 is formed for communicating the second layer F2 of the air chamber F with a fuel vapor passage 3 on an upstream side of the first chamber A. An opening/closing value 81 which is operated according to the inner pressure of the fuel tank is arranged on the way of the passage 8. When negative pressure is caused in the tank at the stopping time of an internal combustion engine, and when the passage 8 is opened by opening the valve 81, external air flows into the passage 8 with the smaller air resistance since the throttle is formed between the first layer F1 and the second layer F2. The external air is fed back to the fuel tank T without passing through the first chamber A. It is thus possible to effectively use a small amount of intake, purge fuel vapor in the second chamber B with preference and prevent release to atmosphere.
    • 6. 发明专利
    • Fuel vapor leakage inspection apparatus
    • 燃油蒸气泄漏检测装置
    • JP2007198394A
    • 2007-08-09
    • JP2007126321
    • 2007-05-11
    • Denso CorpNippon Soken Inc株式会社デンソー株式会社日本自動車部品総合研究所
    • AMANO NORIYASUKATO NAOYAITAKURA HIDEAKIKANO MASAO
    • F02M25/08
    • PROBLEM TO BE SOLVED: To provide a fuel vapor leakage inspection apparatus in which a fuel vapor is prevented from flowing into the atmosphere during a leakage inspection by stopping the leakage inspection when the adsorbing capacity of an adsorbent is lowered. SOLUTION: When the leakage inspection is performed for a fuel vapor treatment system, a discharged fuel vapor concentration calculated by an ECU 30 beforehand according to a signal detected by an air-fuel ratio sensor 22 is read out. The ECU 30 calculates the concentration of the discharged fuel vapor discharged from a canister 50 into an intake pipe 12 based on the air-fuel ratio of exhaust gases detected by the air-fuel ratio sensor 22 and a theoretical air-fuel ratio. The adsorbed amount of the fuel vapor adsorbed by the adsorbent 52 in the canister 50 is calculated based on the concentration of the discharged fuel vapor. When the calculated adsorbed amount of fuel vapor is larger than a predetermined amount, if fuel supply into a fuel tank is detected, it is determined that a large amount of fuel vapor is adsorbed to the adsorbent 52 and the adsorbing capacity of the adsorbent 52 is lowered. Then, the leakage inspection is stopped. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种燃料蒸气泄漏检查装置,其中当吸附剂的吸附能力降低时,通过停止泄漏检查,在泄漏检查期间防止燃料蒸汽流入大气。 解决方案:当对燃料蒸气处理系统进行泄漏检查时,读出由ECU30预先根据由空燃比传感器22检测到的信号计算出的排出的燃料蒸气浓度。 ECU30基于由空燃比传感器22检测出的排气的空燃比和理论空燃比,计算从罐50向进气管12排出的排出的燃料蒸气的浓度。 基于排出的燃料蒸气的浓度计算吸附剂52在罐50中吸附的燃料蒸汽的吸附量。 当所计算的燃料蒸汽吸附量大于预定量时,如果检测到燃料箱中的燃料供应,则确定吸附剂52吸附大量的燃料蒸气,吸附剂52的吸附能力为 降低。 然后,泄漏检查停止。 版权所有(C)2007,JPO&INPIT
    • 7. 发明专利
    • Evaporated fuel treatment device
    • 蒸发燃料处理装置
    • JP2007113519A
    • 2007-05-10
    • JP2005307219
    • 2005-10-21
    • Denso CorpNippon Soken Inc株式会社デンソー株式会社日本自動車部品総合研究所
    • AMANO NORIYASUKATO NAOYATAKAKURA SHINSUKEKANO MASAO
    • F02M25/08F02D41/02F02D41/04F02D45/00
    • F02D41/0045F02D41/1454F02D41/2451F02D41/2454
    • PROBLEM TO BE SOLVED: To provide an evaporated fuel treatment device reducing difference between actual air fuel ratio and target air fuel ratio caused by purge of evaporated fuel.
      SOLUTION: CPU 52 measures actual air fuel ratio λ1 from detection signal of an air fuel ratio sensor 26. If difference Δλ=/λ1-λ0/ between the target air fuel ratio λ0 and the actual air fuel ratio λ1 is larger than a predetermined range Δλ0, the CPU 52 judges that evaporated fuel quantity purged to an intake air passage 14 is deviated from a target value and that a cause thereof is that the value of reference flow rate Q100 of a purge valve 36 is not correct. The CPU 52 calculates actual reference flow rate Q100 from measured actual air fuel ratio λ1 and rewrites the value of the reference flow rate Q100 corresponding to present intake pressure P0 indicated on a characteristic map by the value of the calculated reference flow rate Q100.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 解决的问题:提供一种蒸发燃料处理装置,其减少由蒸发的燃料吹扫引起的实际空燃比和目标空燃比之间的差异。 解决方案:CPU 52根据空燃比传感器26的检测信号测量实际空燃比λ1。如果目标空燃比λ0和实际空燃比λ1之间的差Δλ= /λ1-λ0/大于 预定范围Δλ0时,CPU52判断净化到进气通道14的蒸发燃料量偏离目标值,其原因在于净化阀36的基准流量Q100的值不正确。 CPU52从测量的实际空燃比λ1计算实际参考流量Q100,并将与特征图上指示的当前进气压P0相对应的参考流量Q100的值重新计算出参考流量Q100的值。 版权所有(C)2007,JPO&INPIT