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    • 24. 发明授权
    • Method of estimating temperature of gas mixture for internal combustion engine
    • 内燃机气体混合物温度估算方法
    • US07537382B2
    • 2009-05-26
    • US10584940
    • 2005-02-08
    • Taku IbukiShigeki Nakayama
    • Taku IbukiShigeki Nakayama
    • G01K13/02
    • F02D35/026F02D35/025
    • In a gas mixture temperature estimation method for an internal combustion engine, before a forefront portion of a gas mixture reaches an inner wall surface of the combustion chamber, the gas mixture temperature is calculated in accordance with a predetermined equation which is based on the assumption that no head exchange occurs between the gas mixture and cylinder interior gas which exists around the gas mixture without mixing with fuel. After the gas mixture forefront portion reaches the inner wall surface of the combustion chamber, the gas mixture temperature calculated in accordance with the equation is corrected in consideration of the quantity of heat transfer between the gas mixture and the cylinder interior gas and the quantity of heat transfer between the gas mixture and the wall.
    • 在用于内燃机的气体混合物温度估计方法中,在气体混合物的前部部分到达燃烧室的内壁表面之前,根据预定的方程式计算气体混合物温度,该预定公式基于以下假设: 在气体混合物周围存在的气体混合物和气缸内部气体之间不会发生头部交换,而不与燃料混合。 在气体混合物前端部分到达燃烧室的内壁表面之后,考虑到气体混合物和气缸内部气体之间的热传递量和热量来校正根据等式计算的气体混合物温度 气体混合物和墙壁之间的转移。
    • 25. 发明授权
    • Method of estimating state quantity or temperature of gas mixture for internal combustion engine
    • 内燃机气体混合物状态或温度估算方法
    • US07401602B2
    • 2008-07-22
    • US10571938
    • 2004-09-07
    • Shigeki NakayamaTaku Ibuki
    • Shigeki NakayamaTaku Ibuki
    • F02B23/00F02D41/00
    • F02D35/026F02D2200/0606
    • The present apparatus calculates a mass ma (mass ratio ma/mf) of mixing-gas-forming cylinder interior gas, which is a portion of cylinder interior gas to be mixed with a forefront portion of injected fuel vapor having a mass of mf, on the basis of a predetermined empirical formula. Subsequently, under the assumption that heat exchange with the outside does not occur, the apparatus calculates an adiabatic gas mixture temperature Tmix of the gas mixture forefront portion on the basis of the heat quantity of the fuel vapor having a mass of mf and the heat quantity of the mixing-gas-forming cylinder interior gas having a mass of ma. Subsequently, in consideration of an amount of heat that the gas mixture forefront portion receives from peripheral cylinder interior gas mainly via a circumferential surface thereof, the apparatus estimates a final gas mixture temperature Tmixfin of the gas mixture forefront portion (i.e., the temperature of the gas mixture) in accordance with the equation Tmixfin=Tmix (1−Kex)+Ta Kex, where Ta represents cylinder interior gas temperature, and Kex represents a heat exchange coefficient (0
    • 本装置计算混合气体成形缸内部气体的质量ma(质量比ma / mf),该混合气体形成缸内部气体是将与质量为mf的喷射燃料蒸汽的前端部分混合的气缸内部气体的一部分 一个预定的经验公式的基础。 随后,在不发生与外部进行热交换的假设下,根据具有质量mf的燃料蒸气的热量和热量来计算混合气体前端部分的绝热气体混合物温度Tmix 的质量为ma的混合气体形成缸内部气体。 随后,考虑到气体混合物前端部分主要经由其圆周表面从周向气缸内部气体接收的热量,该装置估计了气体混合物前端部分的最终气体混合物温度Tmixfin(即, 气体混合物),其中Ta表示气缸内部气体温度,Kex表示热交换系数(0
    • 27. 发明授权
    • Catalyst deterioration determining apparatus for internal combustion engine, and control method for the apparatus
    • 内燃机用催化剂劣化判定装置及其装置的控制方法
    • US06349540B1
    • 2002-02-26
    • US09664389
    • 2000-09-18
    • Shigeki NakayamaHiroki MatsuokaKohei IgarashiHiroshi Suwahara
    • Shigeki NakayamaHiroki MatsuokaKohei IgarashiHiroshi Suwahara
    • F01N300
    • F01N11/007F01N2550/02Y02T10/22Y02T10/47
    • A three-way catalyst device having an oxygen absorbing/releasing capability is provided in an exhaust passage of an internal combustion engine. An upstream-side air-fuel ratio sensor that outputs an output value in accordance with the air-fuel ratio of exhaust gas is provided in the exhaust passage upstream of the three-way catalyst device. A downstream-side air-fuel ratio sensor that outputs an output value in accordance with the air-fuel ratio of exhaust gas is provided in the exhaust passage downstream of the three-way catalyst device. A comparison value is calculated by comparing the length of an output locus formed by output values of the upstream-side air-fuel ratio sensor and the length of an output locus formed by output values of the downstream-side air-fuel ratio sensor. By comparing the comparison value with a predetermined criterion, it is determined whether the three-way catalyst device has deteriorated. At least one of the downstream-side air-fuel ratio sensor output value and the predetermined criterion is corrected in accordance with the downstream-side air-fuel ratio sensor output value. Therefore, deterioration of the three-way catalyst device can be determined with high precision.
    • 具有氧吸收/释放能力的三元催化剂装置设置在内燃机的排气通道中。 在三通催化剂装置的上游的排气通道中设置有根据排气的空燃比输出输出值的上游侧空燃比传感器。 在三通催化剂装置下游的排气通道中设置有输出与废气的空燃比相对应的输出值的下游侧空燃比传感器。 通过比较由上游侧空燃比传感器的输出值形成的输出轨迹的长度与由下游侧空燃比传感器的输出值形成的输出轨迹的长度的比较来计算比较值。 通过将比较值与预定标准进行比较,确定三元催化剂装置是否劣化。 根据下游侧空燃比传感器输出值来校正下游侧空燃比传感器输出值和预定标准中的至少一个。 因此,可以高精度地确定三元催化剂装置的劣化。
    • 29. 发明授权
    • Ozone storing method and ozone storage system
    • 臭氧储存方法和臭氧储存系统
    • US5888271A
    • 1999-03-30
    • US808356
    • 1997-02-28
    • Yasuhiro TanimuraMasaki KuzumotoJunji HirotsujiShigeki Nakayama
    • Yasuhiro TanimuraMasaki KuzumotoJunji HirotsujiShigeki Nakayama
    • B01D53/04B01F5/02C01B13/10F25J3/04B01D53/047
    • B01D53/04C01B13/10B01D2256/14B01D53/0446
    • An ozone storage system which allows energy required for producing and storing ozone to be reduced and which supplies ozone as stored to an ozone consumer stably in continuation. The system includes an ozone generator (1) for generating an ozonized oxygen gas from an oxygen containing gas by using electric energy, an adsorption/desorption tower (4) including an adsorbent for adsorbing ozone from the ozonized oxygen gas and desorbing apparatus for desorbing ozone from the adsorbent, a circulation pipe (L1) for feeding back the oxygen containing gas to the ozone generator after adsorption of ozone in the tower, an ozone discharging apparatus (11) for discharging ozone desorbed from the tower, an ozone concentration controlling apparatus (14) for adjusting an amount of ozone extracted through the ozone discharging apparatus to thereby supply an ozone containing gas containing ozone substantially at a predetermined constant concentration to an ozone consumer (15), and a low-temperature processing unit (20) for separating oxygen from air to feed an oxygen gas to the ozone generator (1).
    • 一种臭氧储存系统,其允许生产和储存臭氧所需的能量被减少,并且将臭氧消耗物质稳定地供应给臭氧消费者的臭氧。 该系统包括通过使用电能从含氧气体产生臭氧化氧气的臭氧发生器(1),包括用于从臭氧化氧气吸附臭氧的吸附剂的吸附/解吸塔(4)和用于解吸臭氧的解吸装置 从吸附剂吸入塔内的臭氧吸附臭氧发生器后的含氧气体回送到臭氧发生器的循环管道(L1),用于排出从塔架脱出的臭氧的臭氧排放装置(11),臭氧浓度控制装置 14),用于调节通过臭氧排放装置提取的臭氧的量,从而将含臭氧的臭氧基本上以预定的恒定浓度供应给臭氧消费者(15);以及低温处理单元(20),用于分离氧 从空气向臭氧发生器(1)供给氧气。