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公开(公告)号：US07895986B2
公开(公告)日：2011-03-01
申请号：US12190463
申请日：2008-08-12
IPC分类号： F02B23/02
CPC分类号： F02M61/1806 , F02M45/086
摘要： A fuel injection nozzle for a diesel engine. The fuel injection nozzle may include a plurality of injection hole groups, each having two injection holes respectively. A distance between the two injection holes, an angle between longitudinal axes of the two injection holes and an angle between horizontal axes of said two injection holes of each injection hole group are each set such that fuel sprays injected from said two injection holes will form a single fuel spray cloud after the fuel sprays collide with a side wall of a combustion chamber formed in a top surface of a piston of the engine, and such that the distance between collision points of the fuel sprays will be in a predetermined range in which a penetration force of said fuel spray cloud along a longitudinal direction of said combustion chamber received after collision with said wall of said combustion chamber is at or near a predetermined maximum value.
摘要翻译： 一种用于柴油发动机的燃油喷嘴。 燃料喷射喷嘴可以包括分别具有两个喷射孔的多个喷射孔组。 两个喷射孔之间的距离，两个喷射孔的纵轴之间的角度和每个喷射孔组的所述两个喷射孔的水平轴线之间的角度分别被设定为使得从所述两个喷射孔注入的燃料喷射将形成 燃料喷雾与形成在发动机的活塞的顶面中的燃烧室的侧壁碰撞的单燃料喷雾云，并且燃料喷射的碰撞点之间的距离将处于预定范围内，其中 所述燃料喷雾云沿与所述燃烧室的所述壁碰撞之后接收的所述燃烧室的纵向方向的穿透力处于或接近预定的最大值。
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公开(公告)号：US20090045269A1
公开(公告)日：2009-02-19
申请号：US12190463
申请日：2008-08-12
IPC分类号： F02M51/00
CPC分类号： F02M61/1806 , F02M45/086
摘要： A fuel injection nozzle for a diesel engine. The fuel injection nozzle may include a plurality of injection hole groups, each having two injection holes respectively. A distance between the two injection holes, an angle between longitudinal axes of the two injection holes and an angle between horizontal axes of said two injection holes of each injection hole group are each set such that fuel sprays injected from said two injection holes will form a single fuel spray cloud after the fuel sprays collide with a side wall of a combustion chamber formed in a top surface of a piston of the engine, and such that the distance between collision points of the fuel sprays will be in a predetermined range in which a penetration force of said fuel spray cloud along a longitudinal direction of said combustion chamber received after collision with said wall of said combustion chamber is at or near a predetermined maximum value.
摘要翻译： 一种用于柴油发动机的燃油喷嘴。 燃料喷射喷嘴可以包括分别具有两个喷射孔的多个喷射孔组。 两个喷射孔之间的距离，两个喷射孔的纵轴之间的角度和每个喷射孔组的所述两个喷射孔的水平轴线之间的角度分别被设定为使得从所述两个喷射孔注入的燃料喷射将形成 燃料喷雾与形成在发动机的活塞的顶面中的燃烧室的侧壁碰撞的单燃料喷雾云，并且燃料喷射的碰撞点之间的距离将处于预定范围内，其中 所述燃料喷雾云沿与所述燃烧室的所述壁碰撞之后接收的所述燃烧室的纵向方向的穿透力处于或接近预定的最大值。
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公开(公告)号：US07426922B2
公开(公告)日：2008-09-23
申请号：US11802417
申请日：2007-05-22
IPC分类号： F02M25/07
CPC分类号： F02D41/005 , F02B29/0406 , F02D41/403 , F02M26/05 , F02M26/06 , F02M26/15 , F02M26/23 , F02M26/38 , Y02T10/44 , Y02T10/47
摘要： An engine exhaust gas purifier includes: an injection controller allowing a fuel injection valve to inject fuel near the top dead center on each compression stroke; an EGR amount controller for controlling the amount of exhaust gas recirculated into a combustion chamber; an excess air ratio controller for controlling the excess air ratio so that the local equivalence ratio in a late combustion stage is lower than the equivalence ratio at which soot is produced; and an intake air temperature controller for controlling the temperature of intake air after being mixed with exhaust gas. The intake air temperature controller controls the temperature of intake air within a temperature range lower than an upper temperature limit below which a predetermined ignition delay time can be secured and higher than a lower temperature limit above which the production of HC and CO can be avoided.
摘要翻译： 发动机废气净化器包括：喷射控制器，允许燃料喷射阀在每个压缩行程上喷射靠近上止点的燃料; 用于控制再循环到燃烧室中的废气量的EGR量控制器; 用于控制过量空气比的过量空气比控制器，使得后期燃烧阶段的局部当量比低于产生烟灰的当量比; 以及用于控制与废气混合后的进气温度的进气温度控制器。 进气温度控制器控制在比可以确保预定点火延迟时间的上限温度以下的温度范围内的进气温度，并且高于可以避免HC和CO的产生的较低温度限制。
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公开(公告)号：US20080022972A1
公开(公告)日：2008-01-31
申请号：US11802417
申请日：2007-05-22
IPC分类号： F02M25/07
CPC分类号： F02D41/005 , F02B29/0406 , F02D41/403 , F02M26/05 , F02M26/06 , F02M26/15 , F02M26/23 , F02M26/38 , Y02T10/44 , Y02T10/47
摘要： An engine exhaust gas purifier includes: an injection controller allowing a fuel injection valve to inject fuel near the top dead center on each compression stroke; an EGR amount controller for controlling the amount of exhaust gas recirculated into a combustion chamber; an excess air ratio controller for controlling the excess air ratio so that the local equivalence ratio in a late combustion stage is lower than the equivalence ratio at which soot is produced; and an intake air temperature controller for controlling the temperature of intake air after being mixed with exhaust gas. The intake air temperature controller controls the temperature of intake air within a temperature range lower than an upper temperature limit below which a predetermined ignition delay time can be secured and higher than a lower temperature limit above which the production of HC and CO can be avoided.
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公开(公告)号：US08464686B2
公开(公告)日：2013-06-18
申请号：US12619530
申请日：2009-11-16
申请人： Sangkyu Kim , Daisuke Shimo , Motoshi Kataoka
发明人： Sangkyu Kim , Daisuke Shimo , Motoshi Kataoka
CPC分类号： F02B23/0672 , F02B23/0651 , F02B23/0669 , Y02T10/125
摘要： A wall shape of a cavity consists of an inward protruding portion located at the periphery of an opening, a center portion projecting toward a fuel injector, and a peripheral portion connecting the inward protruding portion and the center portion. The fuel injector and the cavity are configured so that fuel injected from fuel injector directs to the proximity of the border between the inward protruding portion and the peripheral portion. The peripheral portion consists of a first portion located farthermost from the fuel injector, a second portion located between the inward protruding portion and the first portion, and a third portion located between the first portion and the center portion. The radii of arcs of the peripheral portion decrease from the second portion to the first portion and increase from the first portion to the third portion.
摘要翻译： 空腔的壁形由位于开口周边的向内突出部分，朝向燃料喷射器突出的中心部分和连接向内突出部分和中心部分的周边部分组成。 燃料喷射器和空腔被构造成使得从燃料喷射器喷射的燃料引导到内向突出部分和周边部分之间的边界附近。 周边部分由位于燃料喷射器最远处的第一部分，位于内部突出部分和第一部分之间的第二部分和位于第一部分和中心部分之间的第三部分组成。 周边部分的弧的半径从第二部分减小到第一部分，并且从第一部分增加到第三部分。
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公开(公告)号：US20100250103A1
公开(公告)日：2010-09-30
申请号：US12732107
申请日：2010-03-25
申请人： Daisuke Shimo , Motoshi Kataoka , Yoshihisa Nakamoto , Tatsuya Tanaka , Kota Maekawa , Hideya Horii , Takashi Hatano
发明人： Daisuke Shimo , Motoshi Kataoka , Yoshihisa Nakamoto , Tatsuya Tanaka , Kota Maekawa , Hideya Horii , Takashi Hatano
CPC分类号： F02D41/0065 , F02D41/0007 , F02D41/123 , F02D2041/001 , F02M26/05 , F02M26/06 , F02M26/23 , Y02T10/47
摘要： An exemplary method of controlling an internal combustion engine system is described herein. The internal combustion engine system includes an internal combustion engine, a valve driving mechanism which reciprocally drives an intake valve and an exhaust valve for a combustion chamber of the internal combustion engine, a turbocharger including a turbine and a compressor, and a first EGR passage which communicates an exhaust passage downstream of the emission control device and an intake passage upstream of the compressor. The exemplary method includes shutting off supplying fuel to the combustion chamber under a predetermined condition, and decreasing a lift of the intake or exhaust valve for the combustion chamber during the shutting off supplying fuel to the combustion chamber compared to in a case of supplying fuel to said combustion chamber.
摘要翻译： 本文描述了一种控制内燃机系统的示例性方法。 内燃机系统包括内燃机，往复驱动内燃机的燃烧室的进气门和排气门的阀驱动机构，包括涡轮机和压缩机的涡轮增压器和第一EGR通路， 在排放控制装置下游的排气通路和压缩机上游的进气通路连通。 示例性方法包括在预定条件下关闭向燃烧室供应燃料，以及在向燃烧室供应燃料期间减少用于燃烧室的进气门或排气门的升程，与将燃料供应到燃料的情况相比 所述燃烧室。
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公开(公告)号：US20130073186A1
公开(公告)日：2013-03-21
申请号：US13696776
申请日：2011-05-09
申请人： Shinichi Morinaga , Daisuke Shimo , Keiji Maruyama , Hiroshi Minamoto , Naotoshi Shirahashi , Daisuke Fukuda
发明人： Shinichi Morinaga , Daisuke Shimo , Keiji Maruyama , Hiroshi Minamoto , Naotoshi Shirahashi , Daisuke Fukuda
IPC分类号： F02D41/26
CPC分类号： F02D41/403 , F02B1/12 , F02B2275/14 , F02D13/0207 , F02D13/0246 , F02D13/0273 , F02D41/04 , F02D41/3035 , F02D41/402 , F02M26/01 , F02M26/05 , F02M26/06 , F02M26/23 , Y02T10/123 , Y02T10/18 , Y02T10/44
摘要： A geometric compression ratio in an engine main body 1 is set to 15 or less. Injection control means (ECU 40) performs a main injection of injecting fuel near a compression top dead center, and a preceding injection prior to the main injection at a specific region of predetermined load within an operating region on a relatively low-speed side. The injection control means performs, as the preceding injection, a pilot injection of performing injection at a timing such that at least part of a fuel spray reaches outside a cavity 31 on a top face of a piston, and a pre-injection of injecting fuel at a predetermined timing after the pilot injection, to suppress thereby ignition of the fuel injected by the pilot injection and shorten an ignition delay of the fuel injected by the main injection.
摘要翻译： 发动机主体1的几何压缩比被设定为15以下。 喷射控制装置（ECU40）在相对低速侧的操作区域内的预定负荷的特定区域的主喷射之前，在压缩上止点附近执行喷射燃料的主喷射，以及主喷射之前的喷射燃料。 喷射控制装置作为先前的喷射执行在至少部分燃料喷雾到达活塞顶面上的空腔31的外部的时刻执行喷射的先导喷射，以及喷射燃料的预喷射 在先导喷射之后的预定定时，抑制由先导喷射喷射的燃料的点火，并且缩短由主喷射喷射的燃料的点火延迟。
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公开(公告)号：US09234478B2
公开(公告)日：2016-01-12
申请号：US13696776
申请日：2011-05-09
申请人： Shinichi Morinaga , Daisuke Shimo , Keiji Maruyama , Hiroshi Minamoto , Naotoshi Shirahashi , Daisuke Fukuda
发明人： Shinichi Morinaga , Daisuke Shimo , Keiji Maruyama , Hiroshi Minamoto , Naotoshi Shirahashi , Daisuke Fukuda
CPC分类号： F02D41/403 , F02B1/12 , F02B2275/14 , F02D13/0207 , F02D13/0246 , F02D13/0273 , F02D41/04 , F02D41/3035 , F02D41/402 , F02M26/01 , F02M26/05 , F02M26/06 , F02M26/23 , Y02T10/123 , Y02T10/18 , Y02T10/44
摘要： A geometric compression ratio in an engine main body 1 is set to 15 or less. Injection control means (ECU 40) performs a main injection of injecting fuel near a compression top dead center, and a preceding injection prior to the main injection at a specific region of predetermined load within an operating region on a relatively low-speed side. The injection control means performs, as the preceding injection, a pilot injection of performing injection at a timing such that at least part of a fuel spray reaches outside a cavity 31 on a top face of a piston, and a pre-injection of injecting fuel at a predetermined timing after the pilot injection, to suppress thereby ignition of the fuel injected by the pilot injection and shorten an ignition delay of the fuel injected by the main injection.
摘要翻译： 发动机主体1的几何压缩比被设定为15以下。 喷射控制装置（ECU40）在相对低速侧的操作区域内的预定负荷的特定区域的主喷射之前，在压缩上止点附近执行喷射燃料的主喷射，以及主喷射之前的喷射燃料。 喷射控制装置作为先前的喷射执行在至少部分燃料喷雾到达活塞顶面上的空腔31的外部的时刻执行喷射的先导喷射，以及喷射燃料的预喷射 在先导喷射之后的预定定时，抑制由先导喷射喷射的燃料的点火，并且缩短由主喷射喷射的燃料的点火延迟。
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公开(公告)号：US20110315128A1
公开(公告)日：2011-12-29
申请号：US13160827
申请日：2011-06-15
申请人： Takeshi Yokoo , Daisuke Shimo , Yoshie Kakuda , Kim Sangkyu , Kyotaro Nishimoto
发明人： Takeshi Yokoo , Daisuke Shimo , Yoshie Kakuda , Kim Sangkyu , Kyotaro Nishimoto
CPC分类号： F02D13/0273 , F01L2001/0537 , F01L2800/10 , F01L2820/01 , F01L2820/02 , F02B3/06 , F02B29/0406 , F02B2275/14 , F02D13/0246 , F02D13/0253 , F02D41/006 , F02D2041/001 , F02M26/01 , F02M26/08 , F02M26/10 , F02M26/28 , F02M31/13 , Y02T10/18
摘要： A diesel engine body is provided with a geometric compression ratio ε within a range of 12:1 to 15:1. The engine body has an intake valve for opening and closing an intake passage of a cylinder, an exhaust valve for opening and closing an exhaust passage of the cylinder, and an exhaust gas re-circulation passage communicating with the intake and exhaust passages and for partially re-circulating exhaust to the intake passage. During low engine load and rotation speed conditions, the exhaust valve is opened during an intake stroke, and the intake passage is choked. The exhaust valve is closed before the intake valve in the later stage of the intake stroke. An opening area SE of the exhaust valve is set so that a ratio of SE to an opening area SI of the intake valve meets a relation of: 0.01×(15−ε)+0.02≦SE/SI≦0.17
摘要翻译： 柴油发动机主体具有几何压缩比＆egr; 在12：1至15：1的范围内。 发动机本体具有用于打开和关闭气缸的进气通道的进气阀，用于打开和关闭气缸的排气通道的排气阀以及与进气和排气通道连通的排气再循环通道， 将排气再循环到进气通道。 在低发动机负荷和转速条件下，排气门在进气行程中打开，进气通道堵塞。 排气阀在进气冲程的后期阶段在进气阀之前关闭。 排气门的开口面积SE被设定为使得SE与进气门的开口面积SI的比率满足关系：0.01×（15-＆egr）+ 0.02＆nlE; SE / SI＆nlE; 0.17
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公开(公告)号：US08682568B2
公开(公告)日：2014-03-25
申请号：US13170861
申请日：2011-06-28
申请人： Daisuke Shimo , Kim Sangkyu , Kyotaro Nishimoto , Shinichi Morinaga , Keiji Maruyama , Hiroshi Minamoto , Masayuki Tetsuno , Masahiro Nagoshi
发明人： Daisuke Shimo , Kim Sangkyu , Kyotaro Nishimoto , Shinichi Morinaga , Keiji Maruyama , Hiroshi Minamoto , Masayuki Tetsuno , Masahiro Nagoshi
IPC分类号： F02B3/12
CPC分类号： F02D41/3035 , F02D41/402 , F02D41/403 , F02P5/153 , F02P19/02 , Y02T10/44 , Y02T10/46
摘要： A diesel engine is provided, which includes an engine body to be supplied with fuel containing diesel fuel as its main component, a geometric compression ratio being set to 15:1 or below, a fuel injection valve arranged in the engine body so as to be oriented toward a cylinder of the engine body and for directly injecting the fuel into the cylinder, and a control module for controlling a mode of injecting the fuel into the cylinder through the fuel injection valve. The control module performs a main injection where the fuel is injected to cause a main combustion mainly including a diffusion combustion and performs a plurality of pre-stage injections where the fuel is injected prior to the main injection to cause a pre-stage combustion prior to the main combustion. The control module controls the injection mode of the injections to adjust a heat release rate.
摘要翻译： 提供了一种柴油发动机，其包括：发动机主体，其供给包含柴油燃料作为其主要部件的燃料，几何压缩比被设定为15:1或更低，配置在发动机主体中的燃料喷射阀， 定向到发动机体的气缸并且用于将燃料直接喷射到气缸中;以及控制模块，用于控制通过燃料喷射阀将燃料喷射到气缸中的模式。 控制模块执行主喷射，其中喷射燃料以引起主要包括扩散燃烧的主燃料，并且执行多次预喷射，其中在主喷射之前喷射燃料以在燃料喷射之前进行预燃烧， 主要燃烧。 控制模块控制喷射模式以调节放热速率。
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