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    • 11. 发明专利
    • FLUID INJECTION NOZZLE
    • JPH1193807A
    • 1999-04-06
    • JP25823197
    • 1997-09-24
    • DENSO CORP
    • SAWADA YUKIOMORI YUKIOTANI TAISHIN
    • F02M61/18B05B1/30
    • PROBLEM TO BE SOLVED: To provide a fluid injection nozzle which promotes atomization of fluid vapor. SOLUTION: A substantially disc-like fuel chamber 35 is determined by a tip surface 25a of a needle valve 25, an inner wall surface 31 of a valve body 30, and a surface 33 of an orifice plate 32 opposed to the needle valve 25. Projections 33a are projected from the surface 33, on an outer peripheral side of an orifice 34. Fuel is flowed into the fuel chamber 35, from a gap between an abutting portion 25c and a valve seat 31a, and struck against the projections 33a formed on the surface 33. The fuel is flowed between the projections 33a while being bent, so that turbulance is generated in the fuel flow. When the fuel containing turbulance is injected from the orifice 34, atomization is promoted in respect to the injected fuel vapor, by the energy of turbulance. Since the fuel vapor is thus easily mixed with air within a wide range for increasing combustion efficiency of fuel, it is possible to reduce poisonous matters discharged into exhaust gas and suppress fuel consumption.
    • 12. 发明专利
    • LIQUID JET NOZZLE
    • JPH1043640A
    • 1998-02-17
    • JP20346996
    • 1996-08-01
    • DENSO CORP
    • TANI TAISHINMOCHIZUKI KOICHIMORI YUKIO
    • B05B1/02
    • PROBLEM TO BE SOLVED: To provide a liquid jet nozzle accelerating the atomization of fluid spray. SOLUTION: An almost disc-shaped fuel chamber 35 is formed by the leading end surface 25a of a needle valve 25, the inner swall surface 31 of a valve body 30 and the opposed surface 33 with the needle valve 35 of an orifice plate 32. Fine unevenness 33a is formed to the opposed surface 33 and the fuel flowing in the fuel chamber 35 from the opening part of a contact part 25c and a valve seat 31a impinges against the fine unevenness 33a formed to the opposed surface 33 to generate disturbance in the flow of the fuel. When the fuel including the disturbance is jetted from an orifice 34, the fine atomization of fuel spray is accelerated by the energy of disturbance. By this constitution, fuel spray is easily mixed with air over a wide range and the combustion efficiency of fuel is increased and, therefore, a harmful substance discharged into exhaust gas and fuel consumption can be reduced.
    • 13. 发明专利
    • FUEL FEEDING DEVICE
    • JPH09112384A
    • 1997-04-28
    • JP26416995
    • 1995-10-12
    • DENSO CORP
    • SAWADA YUKIOMORI YUKIOUSAMI TAKESHIAKUTAGAWA MASAKI
    • F02M47/02F02M55/02
    • PROBLEM TO BE SOLVED: To provide a fuel feeding device to improve assembling ability of a fuel rail and facilitate assembly of the device to an engine. SOLUTION: A fuel feeding device 1 comprises a fuel rail 10; and a fuel injection valve 20. The fuel rail 10 molded by using a resin is formed in such a manner that upper and lower members 11 and 12 are assembled together and a fuel injection valve 20 incorporated in a fuel passage 13 is nipped between upper and lower members 11 and 12. In this case, a seat member 18 formed of rubber is located between the press part 11b of an upper member 11 and the end part on the terminal side of the fuel injection valve 20. An O-ring 37 formed of rubber is located between an annular stepped part in a protrusion part 12b, formed as a result of the through-hole 12c of the lower member 12 being contracted in a stepped manner, and the end on the injection nozzle side of a fuel injection valve 20. This constitution relieves a load on a fuel injection valve 20 generated when the fuel rail 10 is assembled by the seat member 18 and the O-ring 37.
    • 14. 发明专利
    • FUEL SUPPLY DEVICE
    • JPH0996262A
    • 1997-04-08
    • JP11903696
    • 1996-05-14
    • DENSO CORP
    • SAWADA YUKIOMORI YUKIOMINAGAWA KAZUJIUSAMI TAKESHI
    • F02M37/00F02D41/30F02M37/08F02M37/20
    • PROBLEM TO BE SOLVED: To improve fuel injection accuracy and form a fuel pump in small size, by providing the first/second pressure means pressurizing fuel supplied to a fuel rail, and controlling the second pressure means based on an operating condition of an internal combustion engine detected by a detection means. SOLUTION: Fuel in a fuel tank sucked by a fuel pump is pressure-governed by a pressure regulator to be forcedly fed to an active regulator 20. Here pressure governed pressure fuel, after a force feed to a delivery pipe, is injected into a cylinder of an engine from an injector by controlling of a circuit part 24. In the active regulator 20, a piezoelectric element 27 is protruded/deformed by applying voltage, so as to adjust capacity of a pressure adjusting chamber 26a, fuel is prevented from reversely flowing in the pump, by a check valve 22. By an ECU, a frequency, amplitude, etc., of applied voltage to the piezoelectric element 27, based on each sensor signal informing of an engine operating condition, are controlled.
    • 15. 发明专利
    • Road surface gradient estimation device, device and system for controlling vehicle
    • 道路表面坡度估计装置,车辆控制装置及系统
    • JP2012101791A
    • 2012-05-31
    • JP2011290245
    • 2011-12-29
    • Advics Co LtdDenso Corp株式会社アドヴィックス株式会社デンソー
    • NAKAI YASUHIROKUMABE HAJIMEFUKUDA SHOTARONIWA MASARUTAKEDA MASAYOSHIMORI YUKIO
    • B60W40/072B60T8/172B60W40/076
    • PROBLEM TO BE SOLVED: To solve such a problem that it is difficult to accurately estimate a gradient of a road surface which a vehicle runs based on a detection value ACCg of an acceleration sensor which senses acceleration based on a differential value ACCw of running speed (real vehicle speed V) of the vehicle, and a force being applied to itself.SOLUTION: A first estimated value ACCrg is computed as a difference of the differential value ACCw and the detection value ACCg, and a second estimated value ACCrgp is computed by applying predetermined correction to this. A gradient estimation value ACCrgf is computed by giving filter processing to the second estimated value ACCrgp with a low-pass filter B48. The gradient change estimated value Δ is computed based on the difference of the first estimated value ACCrg with a delay estimated value ACCrgL to which the filter processing is given with a low-pass filter B50. A cutoff frequency fc of the low-pass filter B48 is variably set according to the gradient change estimated value Δ.
    • 要解决的问题为了解决难以根据加速度感测器的检测值ACCg来准确地估计车辆行驶的路面的坡度的问题,该加速度传感器基于感测加速度的差异值ACCw, 车辆的行驶速度(实际车速V),以及施加在车身上的力。 解决方案:计算第一估计值ACCrg作为差分值ACCw和检测值ACCg的差,并且通过对其进行预定的校正来计算第二估计值ACCrgp。 通过利用低通滤波器B48对第二估计值ACCrgp给出滤波处理来计算梯度估计值ACCrgf。 基于第一估计值ACCrg与用低通滤波器B50给出滤波处理的延迟估计值ACCrgL的差来计算梯度变化估计值Δ。 低通滤波器B48的截止频率fc根据梯度变化估计值Δ可变地设定。 版权所有(C)2012,JPO&INPIT
    • 18. 发明专利
    • Fuel pump
    • 燃油泵
    • JP2003042029A
    • 2003-02-13
    • JP2001232391
    • 2001-07-31
    • Denso Corp株式会社デンソー
    • TANAKA SADAHIROITO MOTOYAMORI YUKIO
    • F02M37/10F04D5/00
    • PROBLEM TO BE SOLVED: To provide a fuel pump capable of securing the strength resistant to higher fuel pressure while solving problems on the larger size and cost increase of the fuel pump.
      SOLUTION: A pump portion 32 for sucking and discharging fuel and a motor portion 33 for driving the pump portion 32 are provided in a housing 31 and an impeller 36 is housed between an outer casing 34 for the pump portion 32 and an inner casing 35 arranged inside thereof. The outer casing 34 for the pump portion 32 and the impeller 36 are formed of a resin and the inner casing 35 is formed of a stainless steel having a Young's modulus ten times larger than the resin. Thus, even when the inner casing 35 is thinner than conventional one formed of a resin, the strength resistant to higher fuel pressure is secured. Furthermore, a discharge groove 55 is formed in the inner face of the inner casing 35 by pressing for discharging fuel to a discharge port formed through the inner casing 35.
      COPYRIGHT: (C)2003,JPO
    • 要解决的问题:提供一种能够确保抵抗较高燃料压力的强度的燃料泵,同时解决燃料泵的较大尺寸和成本增加的问题。 解决方案:用于吸入和排出燃料的泵部分32和用于驱动泵部分32的马达部分33设置在壳体31中,并且叶轮36容纳在用于泵部32的外壳34和布置成 在里面。 用于泵部32和叶轮36的外壳34由树脂形成,内壳35由杨氏模量比树脂大十倍的不锈钢形成。 因此,即使当内壳体35比由树脂形成的内壳薄的情况下,也能够确保抵抗较高的燃料压力的强度。 此外,在内壳35的内表面通过按压将燃料排出到通过内壳35形成的排出口而形成排出槽55。