Fuel supply device
    95.
    发明专利
    Fuel supply device 有权
    燃油供应装置

    公开(公告)号:JP2007303395A

    公开(公告)日:2007-11-22

    申请号:JP2006133189

    申请日:2006-05-12

    IPC分类号: F02D45/00 F02M37/00

    摘要: PROBLEM TO BE SOLVED: To provide a fuel supply device capable of detecting fuel density also immediately after start of an engine in a simpler method. SOLUTION: During cranking of the engine, fuel pressure PF is sampled (S17), and by performing high-speed Fourier transform, frequency components of the sampled fuel pressure PF are calculated and pulsation natural frequency f0 of fuel inside a fuel supply system is calculated (S21). As fuel density ρF increases, the pulsation natural frequency f0 decreases. Therefore, based on the pulsation natural frequency f0, fuel density ρF is determined (S22). At that time, fuel temperature TF is detected (S20), and by correcting the fuel density ρF determined based on the pulsation natural frequency f0 by the fuel temperature TF, fuel density ρF at reference temperature TFREF is obtained. In accordance with the fuel density ρF, a mixture ratio RMIX of the fuel is calculated (S23). COPYRIGHT: (C)2008,JPO&INPIT

    摘要翻译: 要解决的问题:提供一种能够以更简单的方法在发动机启动之后立即检测燃料密度的燃料供应装置。 解决方案:在发动机起动期间,对燃料压力PF进行采样(S17),并且通过执行高速傅里叶变换,计算采样燃料压力PF的频率分量,并且燃料供应中的燃料的脉动固有频率f0 计算系统(S21)。 当燃料密度ρF增加时,脉动固有频率f0减小。 因此,基于脉动自然频率f0,确定燃料密度ρF(S22)。 此时,检测燃料温度TF(S20),通过将燃料温度TF基于脉动固有频率f0求出的燃料密度ρF进行校正,得到基准温度TFREF的燃料密度ρF。 根据燃料密度ρF计算燃料的混合比RMIX(S23)。 版权所有(C)2008,JPO&INPIT

    Start control device of internal combustion engine
    96.
    发明专利
    Start control device of internal combustion engine 有权
    内燃机起动控制装置

    公开(公告)号:JP2007285128A

    公开(公告)日:2007-11-01

    申请号:JP2006110034

    申请日:2006-04-12

    摘要: PROBLEM TO BE SOLVED: To provide a start control device of an internal combustion engine capable of avoiding any defective start caused by vapor without unnecessarily operating a fuel pump. SOLUTION: An engine ECU stores a map specifying three zones of a high-temperature high-pressure zone (1), a low-temperature low-pressure zone (3), and an intermediate zone (2) therebetween according to the temperature and the pressure of a fuel, and the saturated vapor pressure of the fuel. When the start of an engine is requested (YES in S100), the engine ECU detects the temperature THW of an engine cooling water and the fuel pressure P (S200). If the detected values belong to the zone (2) (YES in S300), the engine ECU sets the pre-feed time T (S400), and executes a program including a step (S700) of executing the pre-feed until the fuel pressure P reaches or exceeds the desired fuel pressure threshold P (TH), and a step (S800) of starting the cranking when the fuel pressure P reaches or exceeds the fuel pressure threshold P (TH) (YES in S700). COPYRIGHT: (C)2008,JPO&INPIT

    摘要翻译: 要解决的问题:提供一种内燃机的启动控制装置,其能够避免由蒸汽引起的任何有缺陷的启动,而不必不必要地操作燃料泵。 解决方案:发动机ECU根据该发动机ECU存储指定高温高压区域(1),低温低压区域(3)和中间区域(2)的三个区域的图 燃料的温度和压力以及燃料的饱和蒸气压。 当请求发动机起动时(S100为“是”),发动机ECU检测发动机冷却水的温度THW和燃料压力P(S200)。 如果检测到的值属于区域(2)(S300中为“是”),则发动机ECU设定预供给时间T(S400),并且执行包括执行预供给的步骤(S700)的程序,直到燃料 压力P达到或超过所需的燃料压力阈值P(TH),以及当燃料压力P达到或超过燃料压力阈值P(TH)时启动起动的步骤(S800)(S700中为“是”)。 版权所有(C)2008,JPO&INPIT

    Diesel engine for dimethyl ether
    97.
    发明专利

    公开(公告)号:JP3969454B1

    公开(公告)日:2007-09-05

    申请号:JP2006176466

    申请日:2006-06-27

    发明人: 繁寿 高瀬

    IPC分类号: F02M37/08 F02M37/00 F02M37/20

    摘要: 【課題】アイドリング時ないし軽負荷時における供給ポンプ駆動モータの消費電力及び供給ポンプ駆動音の低減を図る。
    【解決手段】 ジメチルエーテル5を燃料とするディーゼルエンジン1において、燃料タンク6に設けられ該燃料タンク6内の燃料を供給管7を介してエンジン側の高圧ポンプ4に供給する供給ポンプ8と、前記高圧ポンプ4内の燃料通路部13の燃料温度から蒸気圧を算出すると共に、エンジン運転状況から前記蒸気圧に対するマージン圧力幅を設定し、高圧ポンプ4内の燃料通路部13の燃料の圧力が、前記蒸気圧に前記マージン圧力を加えた目標圧力になるように前記供給ポンプ8を制御する制御装置14とを備えている。
    【選択図】図1

    Fuel injection control device for diesel engine
    98.
    发明专利
    Fuel injection control device for diesel engine 审中-公开
    柴油发动机燃油喷射控制装置

    公开(公告)号:JP2007100623A

    公开(公告)日:2007-04-19

    申请号:JP2005293147

    申请日:2005-10-06

    发明人: NAKANE TOMOAKI

    IPC分类号: F02D41/38 F02D41/40 F02D43/00

    摘要: PROBLEM TO BE SOLVED: To provide a fuel injection device for a diesel engine capable of suitably satisfying both of reduction of emission of nitrogen oxide NOx and reduction of fuel consumption even when a simple fuel injection device is used. SOLUTION: Demand injection quantity is calculated based on operation quantity of an accelerator pedal and rotation speed of a diesel engine. The demand injection quantity is divided into a plurality of injections. Injection quantity Qn of each divided injection is established to monotonously increase with injection order. COPYRIGHT: (C)2007,JPO&INPIT

    摘要翻译: 解决的问题:即使使用简单的燃料喷射装置,也能够提供能够适当地兼顾氮氧化物NOx的排放减少和降低燃料消耗的柴油发动机的燃料喷射装置。

    解决方案:根据加速踏板的操作量和柴油发动机的转速计算需求喷射量。 需求喷射量被分成多次喷射。 每个分注的注射量Qn被建立为以注射顺序单调增加。 版权所有(C)2007,JPO&INPIT

    Fuel feed device
    100.
    发明专利
    Fuel feed device 有权
    燃油送料装置

    公开(公告)号:JP2007024012A

    公开(公告)日:2007-02-01

    申请号:JP2005211792

    申请日:2005-07-21

    摘要: PROBLEM TO BE SOLVED: To provide a fuel feed device in which a fuel jetted by a fuel injection valve can be atomized.
    SOLUTION: This fuel feed device 1 supplying a fuel to an internal combustion engine 100 by jetting a liquid fuel from the fuel injection valve 6 into a suction port 101 comprises a micro bubble generating device 4 generating micro bubbles and an ultrasonic generating device 5 generating micro bubbles according gases forming the micro bubbles generated by the micro bubble generating device 4. According to the operating state of the internal combustion engine 100, the micro bubbles generated are mixed in the liquid fuel supplied to the fuel injection valve 6, and the liquid fuel in which the micro bubbles are mixed is irradiated with ultrasonic, the micro bubbles are contracted and the temperature of the liquid fuel is raised instantaneously.
    COPYRIGHT: (C)2007,JPO&INPIT

    摘要翻译: 要解决的问题:提供一种燃料供给装置,其中由燃料喷射阀喷射的燃料可以被雾化。 解决方案:通过从燃料喷射阀6喷射液体燃料到吸入口101而向内燃机100供应燃料的燃料供给装置1包括产生微小气泡的微小气泡生成装置4和超声波产生装置 根据内燃机100的工作状态,所产生的微气泡混入供给燃料喷射阀6的液体燃料中,并且 用超声波照射微气泡混合的液体燃料,微气泡收缩,液体燃料的温度瞬间升高。 版权所有(C)2007,JPO&INPIT