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    • 2. 发明专利
    • Intake control device of internal combustion engine
    • 内燃机控制装置
    • JP2014122562A
    • 2014-07-03
    • JP2012277973
    • 2012-12-20
    • Denso Corp株式会社デンソーNippon Soken Inc株式会社日本自動車部品総合研究所
    • HORIBE MUNEHISAMOTOO KOHEIITO MASAHARU
    • F02D21/08F02D9/02F02D45/00F02M25/07
    • F02D21/08F02M26/21F02M26/40F02M26/44
    • PROBLEM TO BE SOLVED: To suppress degradation of stratification in a cylinder, in an intake control device of an internal combustion engine where a first gas is sucked into the cylinder in the first half of an intake stroke and sucking a second gas different from the first gas in the second half, from the same intake port.SOLUTION: A switch valve 37 is disposed at an upstream side of an intake port 61 of an engine for switching a passage communicated to the intake port 61 between a passage 27 where an EGR lean gas having lean EGR concentration flows, and a passage 25 where an EGR rich gas of thick EGR concentration flows. An ECU controls the switch valve 37 so that the EGR lean gas is sucked in the first half of an intake stroke, and the EGR rich gas is sucked in the second half. Here the switch valve 37 is switched to close the passage 25 during the intake stroke, and the switching timing 73 is changed according to at least one of an engine rotational speed and a target EGR rate. Concretely, a switching timing 73 is advanced according to the increase of the engine rotational speed, and the switching timing 73 is retarded according to the increase of the target EGR rate.
    • 要解决的问题:为了抑制气缸中的分层的劣化,在内燃机的进气控制装置中,在进气冲程的前半部分将第一气体吸入气缸并吸入与第一气体不同的第二气体 下一半的气体来自相同的进气口。解决方案:开关阀37设置在发动机的进气口61的上游侧,用于切换在通道27之间连通的进气口61的通道,EGR通道 具有稀薄EGR浓度的气体流动,以及流过厚EGR浓度的EGR浓气体的通路25。 ECU控制切换阀37,使得在进气冲程的前半部吸入EGR贫气,在后半部吸入EGR浓气。 这里,切换阀37在进气冲程期间切换为关闭通道25,并且切换定时73根据发动机转速和目标EGR率中的至少一个而改变。 具体地,根据发动机转速的增加,切换时刻73进行提前,并且根据目标EGR率的增加而延迟切换定时73。
    • 3. 发明专利
    • Gas supply apparatus for internal combustion engine
    • 内燃机用燃气供应装置
    • JP2013032708A
    • 2013-02-14
    • JP2011167989
    • 2011-08-01
    • Denso Corp株式会社デンソー
    • KINUGAWA MASUMIMOTOO KOHEIHORIBE MUNEHISA
    • F02M33/00F02D21/06F02D21/08F02D41/04F02D43/00F02D45/00F02M25/07
    • F02M23/00F02D21/02F02D21/06Y02T10/146
    • PROBLEM TO BE SOLVED: To provide a gas supply apparatus for an internal combustion engine capable of favorably controlling the generation of both NOand smoke.SOLUTION: Vapor with an oxygen concentration higher than an oxygen concentration of new air generated by a nitrogen enriching device 18 is oxygen-enriched gas. Vapor with an oxygen concentration lower than an oxygen concentration of new air generated by the nitrogen enriching device 18 is nitrogen-enriched gas. Here in a combustion chamber 48, the oxygen-enriched gas and the nitrogen-enriched gas are supplied to a combustion chamber 48 in a way that the oxygen concentration of the gas positioned in an area near the opposite side of an effusion hole across a fuel spray among areas around the fuel spray injected from the effusion hole of a fuel injecting valve becomes higher than the oxygen concentration of the gas positioned in an area other than the area near the opposite side of the effusion hole among the areas around the fuel spray.
    • 要解决的问题:提供一种能够有利地控制产生NO X 和烟雾的内燃机的气体供应装置。 解决方案:氧浓度高于由氮富集装置18产生的新空气的氧浓度的蒸气是富氧气体。 氧浓度低于由氮富集装置18产生的新空气的氧浓度的蒸气是富氮气体。 这里,在燃烧室48中,将富氧气体和富氮气体供给到燃烧室48,使得位于燃料喷射孔的相反侧附近的区域中的气体的氧浓度 从燃料喷射阀的喷出孔喷射的燃料喷雾周围的区域之间的喷射变得高于位于燃料喷雾周围的区域中与喷射孔的相对侧附近的区域以外的区域的气体的氧浓度。 版权所有(C)2013,JPO&INPIT
    • 4. 发明专利
    • Combustion system for internal combustion engine
    • 内燃机燃烧系统
    • JP2012241656A
    • 2012-12-10
    • JP2011114389
    • 2011-05-23
    • Denso Corp株式会社デンソー
    • HORIBE MUNEHISASASAKI SATORUNISHIJIMA YOSHIAKIYOKOTA TAKAMASA
    • F02M25/022F02B23/02F02B47/02F02D19/12
    • F02M25/03F02B3/06F02B23/0651F02B23/0669F02B47/02F02B2275/14F02M25/0225F02M25/0227Y02T10/121Y02T10/123Y02T10/125
    • PROBLEM TO BE SOLVED: To improve fuel consumption by promoting the reduction of heat loss in an internal combustion engine in which a fuel and a non-combustion fluid (e.g., water) are injected into a combustion chamber of the internal combustion engine.SOLUTION: A combustion system for an internal combustion engine has a fuel injection valve 20 injecting a fuel directly into a combustion chamber 10a of the internal combustion engine and a water injection valve 30 (non-combustion fluid injection valve) injecting water (non-combustion fluid) into the combustion chamber 10a. The water is injected to collide with a fuel spray that is injected from the fuel injection valve 20. Therefore, a completely penetrating force of the fuel spray is decreased and the fuel spray hardly reaches a cylinder wall surface 10b. Thus, combustion can be performed at a position away from the cylinder wall surface 10b, and thereby, the amount of the combustion heat transferred to the cylinder wall surface 10b is reduced to decrease the heat loss of the combustion.
    • 要解决的问题:通过促进将燃料和非燃烧流体(例如水)注入内燃机的燃烧室中的内燃机中的热损失的降低来提高燃料消耗 。 解决方案:用于内燃机的燃烧系统具有将燃料直接喷射到内燃机的燃烧室10a中的燃料喷射阀20和注入水的喷水阀30(非燃烧流体喷射阀) 非燃烧流体)进入燃烧室10a。 喷射水与从燃料喷射阀20喷射的燃料喷雾相撞。因此,燃料喷雾的完全穿透力降低,燃料喷雾几乎不到达气缸壁面10b。 因此,可以在远离气缸壁面10b的位置进行燃烧,从而减少传递到气缸壁面10b的燃烧热量,减少燃烧的热损失。 版权所有(C)2013,JPO&INPIT