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公开(公告)号:US6067954A
公开(公告)日:2000-05-30
申请号:US162498
申请日:1998-09-29
IPC分类号: F02B17/00 , F02B23/10 , F02B75/12 , F02D41/02 , F02D41/04 , F02D41/10 , F02D41/30 , F02D41/34 , F02D41/40 , F02M61/14 , F02M69/04
CPC分类号: F02D41/402 , F02D41/10 , F02D41/3023 , F02D41/3029 , F02M69/045 , F02B2075/125 , F02B23/101 , F02D2041/389 , Y02T10/123 , Y02T10/44
摘要: A direct injection engine including an injector disposed in an upper portion of a combustion chamber defined above a piston disposed in a cylinder of the engine with a fuel injecting direction of the injector being provided so that a fuel being injected toward a top portion of the piston, an ignition plug disposed at an upper portion of the combustion chamber, an engine operating condition detector for detecting an engine operating condition. The fuel is injected in a compression stroke from the injector when it is detected by the engine operating condition detector that the engine is in a low engine load and speed zone so as to stratify an injected air fuel mixture around the ignition plug to accomplish a stratified combustion. The engine further includes a fuel controller for controlling an fuel injection so as to inject the fuel plural times into the combustion chamber in a compression stroke when at least one of an engine load and an engine speed is relatively high in an engine operating zone for accomplishing the stratified combustion. A stable combustion is accomplished to improve the fuel consumption efficiency.
摘要翻译: 一种直喷式发动机,其包括设置在燃烧室的上部中的喷射器,所述喷射器设置在设置在发动机的气缸中的活塞的上方,燃料喷射方向被设置成使得燃料朝向活塞的顶部喷射 设置在燃烧室的上部的火花塞,用于检测发动机工作状态的发动机运转状态检测器。 当发动机工作条件检测器检测到发动机处于低发动机负载和速度区域时,燃料在压缩行程中从喷射器喷射,以便将注入的空气燃料混合物分层在火花塞周围以完成分层 燃烧。 发动机还包括燃料控制器,用于在发动机运转区域内的发动机负荷和发动机转速中的至少一个相对较高的压缩行程中将燃料喷射多次喷入到燃烧室中的燃料喷射控制装置, 分层燃烧。 实现稳定的燃烧以提高燃料消耗效率。
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公开(公告)号:US5873344A
公开(公告)日:1999-02-23
申请号:US67286
申请日:1998-04-27
IPC分类号: F02B23/08 , F02B17/00 , F02B23/10 , F02B31/00 , F02B31/08 , F02B75/12 , F02D41/02 , F02D45/00 , F02F1/24 , F02F1/42 , F02F3/26 , F02B31/06
CPC分类号: F02F3/26 , F02B17/005 , F02B23/104 , F02B31/08 , F02B31/085 , F02B2023/106 , F02B2023/108 , F02B2031/006 , F02B2075/125 , F02B2275/18 , F02B2275/48 , F02F1/4214 , F02F2001/241 , F02F2001/245 , Y02T10/12 , Y02T10/123 , Y02T10/125 , Y02T10/146
摘要: A direct injection ignition engine includes a piston with a cavity on a top surface thereof, an injector arranged at a peripheral portion of a combustion chamber to be faced to the combustion chamber for injecting a fuel directly into the combustion chamber, an ignition plug arranged to be projected to the combustion chamber for igniting the fuel introduced into the combustion chamber, an intake passage connected to the combustion chamber for introducing an intake air to the combustion chamber, intake air flow control valve arranged in the intake passage for controlling an intake air flow of an inclined vortex including a tumble component and swirl component produced in the combustion chamber, an actuator for driving the control valve, engine load detecting sensor for detecting an engine load, engine speed detecting sensor for detecting an engine speed, fuel supply controller, based on the output signals from the engine load detecting sensor and the engine speed detecting sensor, for producing control signals for the injector which include a fuel injection amount and fuel injection timing in a compression stroke for accomplishing a stratified combustion condition in which an air fuel mixture with an air fuel ratio greater than a theoretical one is concentrated around the ignition plug when an operating condition is in at least a low engine load and low engine speed condition, and, the fuel injection amount and fuel injection timing in an intake stroke for accomplishing a uniform combustion condition in which an air fuel mixture with an air fuel ratio greater than a theoretical one is uniformly and entirely dispersed in the combustion chamber when the operating condition is at least in a condition beyond said low engine load and engine speed condition with regard to the engine load and engine speed, and, producing control signals for the actuator to produce the inclined vortex of the air fuel mixture in the operating condition from the stratified combustion condition to the uniform combustion condition.
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公开(公告)号:US6152103A
公开(公告)日:2000-11-28
申请号:US191512
申请日:1998-11-13
IPC分类号: F02B23/10 , F02B31/08 , F02B75/12 , F02F1/24 , F02F1/42 , F02F3/26 , F02M61/14 , F02M61/18 , F02B3/00 , F02B19/00
CPC分类号: F02B31/085 , F02B23/104 , F02F3/26 , F02B2023/106 , F02B2023/108 , F02B2075/125 , F02B2275/48 , F02F1/4214 , F02F2001/241 , F02F2001/245 , Y02T10/123 , Y02T10/125 , Y02T10/146
摘要: A direct fuel injection ignition engine includes combustion chambers with a pent roof type ceiling. Each piston has a top surface with a configuration complementary to the combustion chamber ceiling. A fuel injector is disposed at a peripheral portion of the combustion chamber and injects fuel toward the center portion of the top surface of the piston. A cavity is formed on the top surface of the piston. The cavity has a configuration of an elongated circle with a substantially flat bottom surface. The surrounding side wall of the cavity is substantially upright in relation to the bottom surface. A cavity centerline drawn through the longitudinal axis of the cavity is perpendicular to the injection axis line and offset from the center of the piston toward the injector.
摘要翻译: 直接燃油喷射点火发动机包括具有屋顶顶板的燃烧室。 每个活塞具有与燃烧室顶部互补的构造的顶表面。 燃料喷射器设置在燃烧室的周边部分,并向燃料的顶表面的中心部分喷射燃料。 在活塞的顶表面上形成空腔。 空腔具有基本上平坦的底表面的细长圆形的构造。 空腔的周围侧壁相对于底面基本上是直立的。 通过空腔的纵向轴线绘制的空腔中心线垂直于喷射轴线,并从活塞的中心向喷射器偏移。
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公开(公告)号:US06725649B2
公开(公告)日:2004-04-27
申请号:US10235951
申请日:2002-09-06
IPC分类号: F01N300
CPC分类号: F02D41/402 , F02B2075/125 , F02D41/024 , F02D41/3023 , Y02T10/123 , Y02T10/26 , Y02T10/44
摘要: A control apparatus for a direct-injection, spark-ignition engine including a temperature-condition detector for detecting a temperature condition of the engine catalyst, and a controller for controlling a fuel-injection operation. The controller controls the fuel injector to perform divided fuel injections of at least a leading fuel injection and a trailing fuel injection during a compression stroke prior to the ignition timing based upon a detection of the temperature condition in an inactivated state of the catalyst, the trailing fuel injection being performed at such a timing that its mixture concentrates adjacent to the spark plug at the ignition timing by way of high cylinder pressure during a late-stage of the compression stroke, the leading fuel injection being performed at such a timing that its mixture distributes around a mixture layer by the trailing fuel injection at the ignition timing, and a midpoint between an initiation of the leading fuel injection and an initiation of the trailing fuel injection being positioned within a period during a latter half of a compression stroke.
摘要翻译: 一种用于直接喷射火花点火发动机的控制装置,包括用于检测发动机催化剂的温度状况的温度条件检测器和用于控制燃料喷射操作的控制器。 控制器控制燃料喷射器,以在点火正时之前的压缩行程期间基于在催化剂的失活状态下的温度条件的检测,进行至少前导燃料喷射和尾燃料喷射的分配燃料喷射,尾随 在压缩行程的后期阶段,通过高气缸压力在点火正时使其混合物在火花塞附近集中的燃料喷射进行燃料喷射,前进燃油喷射在其混合物 在点火正时通过尾燃料喷射分布在混合物层周围,并且在压缩冲程的后半段期间,在先导燃料喷射的开始和尾燃料喷射的开始位于一段时间内的中点。
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公开(公告)号:US06684848B2
公开(公告)日:2004-02-03
申请号:US10106843
申请日:2002-03-27
申请人: Fumihiko Saito , Noriyuki Ohta , Hiroyuki Yamashita , Masashi Marubara , Masatoshi Seto , Hiroyuki Yoshida , Takehiko Yasuoka , Masakazu Matsumoto
发明人: Fumihiko Saito , Noriyuki Ohta , Hiroyuki Yamashita , Masashi Marubara , Masatoshi Seto , Hiroyuki Yoshida , Takehiko Yasuoka , Masakazu Matsumoto
IPC分类号: F02B1700
CPC分类号: F02B17/005 , F02B23/104 , F02B31/085 , F02B2023/106 , F02B2075/125 , F02F2001/245 , Y02T10/123 , Y02T10/125 , Y02T10/146
摘要: A fuel spray and a tumble collide with each other from approximately opposite directions in a cavity formed in a piston head so that a combustible mixture stays around a spark plug for an extended period of time. An upper opening of the cavity is elongated to both the left and right sides of a cylinder axis. The distance between a ceiling of the combustion chamber and a bottom surface of the cavity is smaller on the right side of the cylinder axis than on the left side thereof and largest at least at a point where the cylinder axis crosses the bottom surface of the cavity, and a portion of the cavity to the left of the cylinder axis has a larger volumetric capacity than a portion of the cavity to the right of the cylinder axis, whereby a strong tumble is maintained up to a fuel injection point.
摘要翻译: 燃料喷雾和滚筒在形成于活塞头中的空腔中从大致相反的方向相互碰撞,使得可燃混合物长时间停留在火花塞周围。 空腔的上部开口沿圆柱体轴线的左侧和右侧伸长。 燃烧室的天花板和空腔的底面之间的距离在气缸轴线的右侧比在其左侧更小,并且至少在气缸轴线穿过腔体的底表面的点处最大 ,并且气缸轴线左侧的空腔的一部分具有比气缸轴线右侧的腔的一部分更大的体积容积,由此强烈的翻滚被保持到燃料喷射点。
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公开(公告)号:US06240724B1
公开(公告)日:2001-06-05
申请号:US09365722
申请日:1999-08-03
IPC分类号: F01N300
CPC分类号: F02D41/402 , F01N3/2006 , F02B2075/125 , F02D41/024 , F02D41/3023 , F02D41/401 , F02D2041/389 , F02M45/02 , Y02T10/123 , Y02T10/26 , Y02T10/44
摘要: A control device for a direct injection engine having a catalyst provided in an exhaust passage for converting exhaust gases and an injector for injecting fuel directly into a combustion chamber, includes a temperature state identifier for judging the temperature state of the catalyst, a load condition detector for sensing engine load conditions, and a fuel injection controller for controlling fuel injection from the injector. The fuel injection controller performs quick light-off control operation by causing the injector to inject fuel in one-time injection mode during a compression stroke in a specific low-load operating range of the engine when the catalyst is in its unheated state where its temperature is below its activation temperature, and switching the mode of fuel injection to intake-compression stroke split injection mode in a specific high-load operating range of the engine.
摘要翻译: 一种用于直接喷射发动机的控制装置,其具有设置在用于转换废气的排气通道中的催化剂和用于将燃料直接喷射到燃烧室中的喷射器,包括用于判断催化剂的温度状态的温度状态标识符,负载条件检测器 用于感测发动机负载条件,以及用于控制来自喷射器的燃料喷射的燃料喷射控制器。 燃料喷射控制器通过在发动机的特定低负荷运行范围内的压缩冲程期间使喷射器以一次喷射模式喷射燃料来执行快速熄灯控制操作,当催化剂处于其未加热状态时,其温度 低于其启动温度,并且在发动机的特定高负载运行范围内将燃料喷射模式切换到进气压缩冲程分流喷射模式。
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公开(公告)号:US6044642A
公开(公告)日:2000-04-04
申请号:US14975
申请日:1998-01-28
IPC分类号: F01N3/24 , F02B23/10 , F02B75/12 , F02D41/02 , F02D41/04 , F02D41/06 , F02D41/30 , F02D41/34 , F02D41/40 , F02D43/00 , F02P5/15 , F01N3/00
CPC分类号: F02P5/1506 , F02D41/024 , F02D41/3023 , F02D41/402 , F02B2075/125 , F02D2041/389 , F02D41/3029 , Y02T10/123 , Y02T10/26 , Y02T10/44 , Y02T10/46
摘要: A direct injection engine including, an ignition plug projected into a combustion chamber, an injector for injecting a fuel directly into the combustion chamber, a catalyst provided in an exhaust gas passage for cleaning an exhaust gas, a temperature senisor for detecting a coolant temperature condition of the catalyst, a control unit, for receiving signals from the sensor to determine that the catalyst is lower than an activation temperature when the engine coolant temperature is lower than a predetermined value, for calculating a fuel injection timing and fuel injection amount from the injector to form a fuel rich combustion gas mixture around the ignition plug equivalent to or richer than a combustion as mixture having a theoretical air fuel ratio and a fuel lean combustion as mixture leaner than the combustion as mixture having the theoretical air fuel ratio in an area surrounding said area of the fuel rich combustion gas mixture when it is determined that the temperature of the catalyst is lower than an activation temperature, and, for producing signals to the injector to inject the fuel at the fuel injection timing. The emission performance of the exhaust gas is improved. The warming up of the catalyst as well as the engine is facilitated.
摘要翻译: 一种直喷式发动机,其特征在于,具备投射在燃烧室内的火花塞,将燃料直接喷入燃烧室的喷射器,设置在废气净化用废气通道内的催化剂,检测冷却剂温度条件的温度传感器 的催化剂,控制单元,用于从发动机接收信号以确定当发动机冷却剂温度低于预定值时催化剂低于活化温度,用于计算来自喷射器的燃料喷射正时和燃料喷射量 以形成燃料混合物周围的燃料气体混合物,该燃烧气体混合物等于或比作为具有理论空气燃料比和燃料贫燃燃烧的混合物的燃烧更为混合物,该混合物的燃烧比燃烧混合物具有理论空燃比在周围区域 所述区域的燃料浓缩燃烧气体混合物,当确定大气的温度时, 天竺葵低于活化温度,并且用于产生喷射器的信号以在燃料喷射正时喷射燃料。 排气的排放性能提高。 促进了催化剂和发动机的升温。
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公开(公告)号:US06009849A
公开(公告)日:2000-01-04
申请号:US909404
申请日:1997-08-11
申请人: Hiroyuki Yamamoto , Hidetoshi Kudo , Noriyuki Ota , Masayuki Kuroki , Akira Kageyama , Hiroyuki Yamashita , Takehiko Yasuoka
发明人: Hiroyuki Yamamoto , Hidetoshi Kudo , Noriyuki Ota , Masayuki Kuroki , Akira Kageyama , Hiroyuki Yamashita , Takehiko Yasuoka
IPC分类号: F02B23/10 , F02B31/00 , F02B31/08 , F02B75/12 , F02F1/24 , F02F1/42 , F02F3/26 , F02B3/00 , F02B5/00
CPC分类号: F02B23/105 , F02B31/085 , F02F3/26 , F02B2023/106 , F02B2023/108 , F02B2031/006 , F02B2075/125 , F02B2275/18 , F02B2275/48 , F02F1/4214 , F02F2001/241 , F02F2001/245 , F02F2001/247 , Y02T10/123 , Y02T10/125 , Y02T10/146
摘要: A direct injection engine provided with an injector at a peripheral portion of a combustion chamber to inject at least at a latter stage of a compression stroke in at least in a low engine load and low engine speed condition, wherein a distance from the tip end of the injector to an opposite end the combustion chamber is determined greater than a traveling distance of an injected fuel for a time period from a start of a fuel injection at the latter stage of the compression stroke to the ignition timing, wherein; an ignition plug is arranged that an ignition gap is disposed within an injection area of the injector; and, wherein a distance from the tip end of the injector to the ignition gap is determined smaller than said traveling distance of the injected fuel. An ignitability and combustion stability can be improved to thereby improve a fuel consumption efficiency.
摘要翻译: 一种直喷式发动机,其在燃烧室的周边部分设置有喷射器,至少在至少在低发动机负荷和低发动机转速条件下至少在压缩行程的后期喷射,其中, 所述喷射器到相对端,所述燃烧室被确定为大于从所述压缩冲程后期的燃料喷射开始到所述点火正时期间的喷射燃料的行进距离,其中: 火花塞被设置为在喷射器的喷射区域内设置着火间隙; 并且其中从喷射器的前端到点火间隙的距离被确定为小于喷射燃料的所述行进距离。 可以提高点火性和燃烧稳定性,从而提高燃料消耗效率。
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公开(公告)号:US10974511B2
公开(公告)日:2021-04-13
申请号:US16714843
申请日:2019-12-16
申请人: Shinya Tanaka , Hiroyuki Yamashita
发明人: Shinya Tanaka , Hiroyuki Yamashita
IPC分类号: B41J2/165 , D06B11/00 , B41J2/145 , D05C13/00 , D05C11/24 , B41J3/407 , D06P5/30 , B41J11/00
摘要: A liquid discharge apparatus includes a head including a nozzle plate having a plurality of nozzles lined in a row and configured to discharge a liquid, a conveyor configured to convey the liquid application target, and a liquid receptacle configured to receive the liquid discharged from the head. The conveyor defines a conveyance passage of a liquid application target to which the head applies the liquid. The liquid receptacle has an opening through which the liquid discharged from the head passes. A longitudinal direction of the opening is along a movement direction of the liquid application target. A width of the opening is greater than a width of the liquid application target in a direction orthogonal to the movement direction.
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公开(公告)号:US10723158B2
公开(公告)日:2020-07-28
申请号:US16363319
申请日:2019-03-25
IPC分类号: B41M5/00 , B41J11/00 , C09D11/322 , C09D11/54
摘要: A line head type liquid discharge apparatus includes a treatment liquid applying device, a first discharging device, a heating device, and a second discharging device. The treatment liquid applying device applies a treatment liquid to a non-permeable base material. The first discharging device discharges a first ink containing an organic solvent onto the non-permeable base material to which the treatment liquid has been applied. The heating device heats, with an infrared ray, the non-permeable base material onto which the first ink has been discharged. The second discharging device discharges a second ink containing an organic solvent onto the non-permeable base material heated by the heating device. A content ratio of the organic solvent contained in the first ink is higher than a content ratio of the organic solvent contained in the second ink.
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