公开(公告)号：US20100043745A1

公开(公告)日：2010-02-25

申请号：US12516244

申请日：2007-10-30

申请人： Hiroshi Kuzuyama

发明人： Hiroshi Kuzuyama

IPC分类号： F02D37/02 ,  F02P5/00

CPC分类号： F02D41/3041 ,  F02D13/0265 ,  F02D35/027 ,  F02D37/02 ,  F02D41/307 ,  F02D2041/001 ,  Y02T10/128 ,  Y02T10/18

摘要： A premixed compression ignition type engine is operated while change over between spark ignition combustion and compression ignition combustion. This engine has a negative overlap period during steady operation under compression ignition combustion. In the same cylinder, a valve-closing timing of an exhaust valve during steady operation under spark ignition combustion is retarded with respect to the valve-closing timing thereof after the change over. In a case where an intake valve is first changed over after start of the change over from spark ignition combustion to compression ignition combustion, the valve-opening timing of the intake valve during a change over period from spark ignition combustion to compression ignition combustion is in an advanced state with respect to the valve-opening timing thereof during steady operation under spark ignition combustion.

摘要翻译： 在火花点火燃烧和压缩点火燃烧之间切换时，预混合压燃式发动机运转。 这种发动机在压缩点火燃烧期间的稳定运行期间具有负的重叠时间。 在相同的气缸中，在火花点火燃烧之后的稳定操作期间，排气阀的关闭正时相对于其切换后的阀关闭正时被延迟。 在从火花点火燃烧到压缩点火燃烧的转换开始之后首先切换进气阀的情况下，在从火花点火燃烧到压缩点火燃烧的转变期间的进气门的开阀正时为 在火花点火燃烧的稳定运转期间相对于其开阀定时的高级状态。

公开(公告)号：US06932062B2

公开(公告)日：2005-08-23

申请号：US10925068

申请日：2004-08-24

申请人： Hiroshi Kuzuyama ,  Kenji Kawai

发明人： Hiroshi Kuzuyama ,  Kenji Kawai

IPC分类号： F02B1/12 ,  F02D9/04 ,  F02D13/02 ,  F02D41/30 ,  F02M25/07 ,  F02B47/08

CPC分类号： F02D13/0246 ,  F02B1/12 ,  F02D9/04 ,  F02D13/0257 ,  F02D13/0261 ,  F02D41/006 ,  F02D41/3035 ,  F02M26/01 ,  Y02T10/128 ,  Y02T10/18

摘要： A compression ignition internal combustion engine according to the present invention includes: at least one combustion chamber; an intake passage and an exhaust passage connected to the combustion chamber, respectively; intake valve provided at a position along the intake passage, for opening and closing the intake passage; exhaust valve provided at a position along the exhaust passage, and is driven by a cam, for opening and closing the exhaust passage, the exhaust valve opening the exhaust passage for a period of at least a portion of an exhaust stroke, and for a period of at least a portion of an intake stroke, during compression ignition combustion mode and during spark ignition combustion mode; and an exhaust throttle provided at a position along the exhaust passage, for opening and closing the exhaust passage, the exhaust throttle recirculating exhaust gas to the combustion chamber by opening the exhaust passage at least during the intake stroke during compression ignition combustion mode, the exhaust throttle preventing the recirculation of the exhaust gas to the combustion chamber by closing the exhaust passage for a period at least when the exhaust valve is open in the intake stroke during spark ignition combustion mode.

摘要翻译： 根据本发明的压燃式内燃机包括：至少一个燃烧室; 分别与燃烧室连接的进气通道和排气通道; 进气阀，设置在沿着进气通道的位置，用于打开和关闭进气通道; 排气阀设置在沿着排气通道的位置处，并且由凸轮驱动，用于打开和关闭排气通道，排气阀将排气通道打开至少一部分排气冲程，并且一段时间 在压缩点火燃烧模式期间和在火花点火燃烧模式期间的至少一部分进气冲程; 设置在沿着排气通道的位置处的排气节气门，用于打开和关闭排气通道，通过在压缩点火燃烧模式期间至少在进气冲程期间打开排气通道将排气节流阀再循环到燃烧室，排气 通过在火花点火燃烧模式下至少当排气门在进气行程中打开时，通过关闭排气通道来防止废气再循环到燃烧室。

公开(公告)号：US20130340720A1

公开(公告)日：2013-12-26

申请号：US14004009

申请日：2012-03-07

申请人： Hiroshi Kuzuyama ,  Tsutomu Kawae ,  Masahiro Machida ,  Takehito Hamamatsu

发明人： Hiroshi Kuzuyama ,  Tsutomu Kawae ,  Masahiro Machida ,  Takehito Hamamatsu

IPC分类号： F02D41/30

CPC分类号： F02D41/30 ,  F02D35/028 ,  F02D41/3035 ,  F02D41/402 ,  F02D2041/389 ,  Y02T10/128 ,  Y02T10/44

摘要： A fuel injection device is provided with a fuel injection valve to inject fuel into a combustion chamber of an engine, and an electronic control unit to operate the fuel injection valve to inject the fuel in multiple separate injections. The electronic control unit controls a timing of a first fuel injection by the fuel injection valve to carry out the first fuel injection on the retard side with respect to a timing when a premix duration immediately after the first fuel injection is minimum, and controls a timing of a second fuel injection by the fuel injection valve in such a manner that a heat release rate waveform produced by the first fuel injection and the second fuel injection carried out thereafter has a double-peaked shape.

摘要翻译： 燃料喷射装置设置有燃料喷射阀以将燃料喷射到发动机的燃烧室中，以及电子控制单元，用于操作燃料喷射阀以在多次分开的喷射中喷射燃料。 电子控制单元通过燃料喷射阀控制第一燃料喷射的定时，相对于在第一燃料喷射之后的预混料持续时间最短的时刻进行延迟侧的第一燃料喷射，并且控制定时 通过燃料喷射阀以使得由其后进行的第一燃料喷射和第二燃料喷射产生的放热率波形具有双峰形状的方式进行第二燃料喷射。

公开(公告)号：US08522730B2

公开(公告)日：2013-09-03

申请号：US12287953

申请日：2008-10-14

申请人： Hiroshi Kuzuyama

发明人： Hiroshi Kuzuyama

IPC分类号： F02B1/12

CPC分类号： F02B1/12 ,  F02D13/00 ,  F02D41/006 ,  F02D41/3035 ,  F02D41/307 ,  F02D41/40 ,  F02D2041/001 ,  F02D2041/002 ,  Y02T10/128 ,  Y02T10/18 ,  Y02T10/42 ,  Y02T10/47

摘要： A controller sets a negative valve overlap period, during which both of an intake valve and an exhaust valve are closed, such that not all the burned gas is discharged from the combustion chamber. When switching the combustion mode from the spark ignition combustion to the HCCI combustion, the controller executes following operations a), b), and c): a): switching the intake lift amount from a first intake lift amount to a second intake lift amount, such that intake opening timing is delayed relative to an exhaust top dead center; b): switching the exhaust lift amount from a first exhaust lift amount to a second exhaust lift amount after the operation a); and c) delaying the exhaust closing timing relative to a reference exhaust closing timing, such that the internal EGR amount is generated.

公开(公告)号：US08096279B2

公开(公告)日：2012-01-17

申请号：US12516244

申请日：2007-10-30

申请人： Hiroshi Kuzuyama

发明人： Hiroshi Kuzuyama

IPC分类号： F01L1/344 ,  F02B3/12

CPC分类号： F02D41/3041 ,  F02D13/0265 ,  F02D35/027 ,  F02D37/02 ,  F02D41/307 ,  F02D2041/001 ,  Y02T10/128 ,  Y02T10/18

摘要： A premixed compression ignition type engine is operated while change over between spark ignition combustion and compression ignition combustion. This engine has a negative overlap period during steady operation under compression ignition combustion. In the same cylinder, a valve-closing timing of an exhaust valve during steady operation under spark ignition combustion is retarded with respect to the valve-closing timing thereof after the change over. In a case where an intake valve is first changed over after start of the change over from spark ignition combustion to compression ignition combustion, the valve-opening timing of the intake valve during a change over period from spark ignition combustion to compression ignition combustion is in an advanced state with respect to the valve-opening timing thereof during steady operation under spark ignition combustion.

摘要翻译： 在火花点火燃烧和压缩点火燃烧之间切换时，预混合压燃式发动机运转。 这种发动机在压缩点火燃烧期间的稳定运行期间具有负的重叠时间。 在相同的气缸中，在火花点火燃烧之后的稳定操作期间，排气阀的关闭正时相对于其切换后的阀关闭正时被延迟。 在从火花点火燃烧到压缩点火燃烧的转换开始之后首先切换进气阀的情况下，在从火花点火燃烧到压缩点火燃烧的转变期间的进气门的开阀正时为 在火花点火燃烧的稳定运转期间相对于其开阀定时的高级状态。

公开(公告)号：US07874280B2

公开(公告)日：2011-01-25

申请号：US12513113

申请日：2007-11-13

申请人： Hiroshi Kuzuyama

发明人： Hiroshi Kuzuyama

IPC分类号： F02B17/00

CPC分类号： F02D41/3035 ,  F02B1/12 ,  F02D13/0265 ,  F02D19/023 ,  F02D41/0027 ,  F02D41/006 ,  F02D41/3064 ,  F02M19/086 ,  F02M21/0284 ,  F02M21/047 ,  Y02T10/128 ,  Y02T10/32 ,  Y02T10/47

摘要： An HCCI engine provides a negative overlap period in an operation during HCCI combustion. During the negative overlap period, an intake valve and an exhaust valve are both closed when a piston is in the vicinity of the top dead center in an exhaust stroke, so that burned gas remains inside a combustion chamber. The engine is provided with a throttle, a fuel valve and an ECU. The ECU controls the throttle during a switching period in which SI combustion is switched to the HCCI combustion so that the opening degree of the throttle increases to the opening degree at the time of steady HCCI operation from the opening degree at the time of steady SI operation, and at the same time, controls the fuel valve such that the amount of fuel supplied to the intake passage becomes greater than the amount at the time of the steady SI operation.

摘要翻译： HCCI发动机在HCCI燃烧期间的操作中提供负重叠时段。 在负重叠期间，当活塞在排气冲程中处于上止点附近时，进气门和排气门都关闭，使得燃烧气体保持在燃烧室内。 发动机设有节流阀，燃油阀和ECU。 在SI燃烧切换到HCCI燃烧的切换期间ECU控制节流阀，使得节气门开度在稳定的HCCI运行时从开度稳定的SI操作开始时增加到开度 并且同时控制燃料阀，使得供给到进气通道的燃料量变得大于稳定的SI操作时的量。

公开(公告)号：US07720590B2

公开(公告)日：2010-05-18

申请号：US12288001

申请日：2008-10-14

申请人： Hiroshi Kuzuyama

发明人： Hiroshi Kuzuyama

IPC分类号： F02D45/00 ,  F02D13/02 ,  F02B11/00

CPC分类号： F02D13/00 ,  F02B1/12 ,  Y02T10/128 ,  Y02T10/18

摘要： An ECU switches a combustion mode of an HCCI engine from HCCI combustion to spark ignition combustion. The ECU executes the following operations a) and b) before switching an intake lift amount from a first intake lift amount to a second intake lift amount: a): switching an exhaust lift amount from a first exhaust lift amount to a second exhaust lift amount while ensuring an internal EGR amount, and b): delaying a closing timing of an exhaust valve so as to reduce the internal EGR amount after switching the exhaust lift amount from the first exhaust lift amount to the second exhaust lift amount.

摘要翻译： ECU将HCCI发动机的燃烧模式从HCCI燃烧切换到火花点火燃烧。 ECU在将进气提升量从第一进气提升量切换到第二进气提升量之前执行以下操作a）和b）：a）：将排气提升量从第一排气提升量切换到第二排气提升量 同时确保内部EGR量，以及b）：延迟排气门的关闭正时，以便将排气提升量从第一排气提升量切换到第二排气提升量后将内部EGR量减小。

公开(公告)号：US20090248271A1

公开(公告)日：2009-10-01

申请号：US11992505

申请日：2006-12-18

申请人： Hiroshi Kuzuyama ,  Masahiro Machida

发明人： Hiroshi Kuzuyama ,  Masahiro Machida

IPC分类号： F02D45/00 ,  F02B47/08 ,  F02B33/00

CPC分类号： F02D13/0249 ,  F02B33/40 ,  F02B37/16 ,  F02B39/10 ,  F02D13/0215 ,  F02D23/005 ,  F02D41/0007 ,  F02D41/005 ,  F02D41/006 ,  F02D41/0065 ,  F02D41/3035 ,  F02D2200/0414 ,  Y02T10/144 ,  Y02T10/18 ,  Y02T10/47

摘要： At high temperature, namely, when the temperature of intake air is higher than a predetermined normal temperature range, an ECU (25) controls a variable valve timing mechanism (24) such that the timing for closing an exhaust valve (9) is adjusted to a retard side, thereby reducing the amount of high-temperature internal EGR gas to avoid the occurrence of pre-ignition. At intermediate load and high load, the ECU (25) makes the retard amount of the timing for closing the exhaust valve (9) larger than that at low load, thereby reducing the amount of internal EGR gas. At intermediate load and in an intermediate-revolution range or a high-revolution range, the rotating speed of an electric motor (16) is increased to raise a supercharging pressure exerted by a supercharger (17). At high load and in the high-revolution range, the electric motor (16) for the supercharger (17) and an EGR control valve (22) are controlled such that the supercharging pressure rises and the amount of external EGR gas increases as the temperature of intake air detected by a temperature sensor (26) rises.

摘要翻译： 在高温时，即当进气温度高于预定的常温范围时，ECU（25）控制可变气门正时机构（24），使得关闭排气门（9）的时间被调整为 延迟侧，从而减少高温内部EGR气体的量，以避免发生预点火。 在中负荷和高负载下，ECU（25）使得关闭排气门（9）的时间的延迟量大于低负载时的延迟量，从而减少内部EGR气体的量。 在中间载荷和中转速度或高转速范围内，电动机（16）的转速增加，以提高由增压器（17）施加的增压压力。 在高负载和高转速范围内，控制增压器（17）的电动机（16）和EGR控制阀（22），使得增压压力升高，外部EGR气体的量随温度 由温度传感器（26）检测到的进气量升高。

公开(公告)号：US20080196406A1

公开(公告)日：2008-08-21

申请号：US12069666

申请日：2008-02-12

申请人： Hiroshi Kuzuyama

发明人： Hiroshi Kuzuyama

IPC分类号： F01K23/06

CPC分类号： F02B29/0418 ,  F02B1/12 ,  F02M21/0239 ,  F02M21/047 ,  F02M26/28 ,  F02M35/10255 ,  Y02T10/146 ,  Y02T10/32

摘要： An EGR passage partially refluxes exhaust gas to a combustion chamber as an EGR gas. A heat exchanger cools the EGR gas. A heating intake passage branches off from a branching portion formed in a portion of an intake passage on an upstream side of a downstream end of the EGR passage, and its downstream end communicates with a portion of the EGR passage on an upstream side of the heat exchanger. A switch valve adjusts respective amounts of intake air passing through the intake passage and through the heating intake passage. When an EGR valve is closed, an ECU switches the switch valve such that the intake air passes through one of the intake passage and the heating intake passage; when the EGR valve is open, the ECU switches the switch valve such that the intake air passes solely through the intake passage.

摘要翻译： EGR通路将废气部分地回流到作为EGR气体的燃烧室。 热交换器冷却EGR气体。 加热进气通道从形成在EGR通道下游端的上游侧的进气通道的一部分中的分支部分分支，并且其下游端在热通道的上游侧与EGR通道的一部分连通 交换机。 开关阀调节通过进气通道和通过加热进气通道的进入空气量。 当EGR阀关闭时，ECU切换开关阀，使得进气通过进气通道和加热进气通道中的一个; 当EGR阀打开时，ECU切换开关阀，使得进气仅通过进气通道。

公开(公告)号：US07066158B2

公开(公告)日：2006-06-27

申请号：US10946855

申请日：2004-09-22

申请人： Hiroshi Kuzuyama

发明人： Hiroshi Kuzuyama

IPC分类号： F02D13/02 ,  F02B37/04 ,  F02B1/12 ,  F02B11/08 ,  F02M25/07

CPC分类号： F02B47/08 ,  F02B1/12 ,  F02B33/34 ,  F02B37/16 ,  F02B39/10 ,  F02M26/01 ,  F02M26/03 ,  Y02T10/128 ,  Y02T10/144

摘要： A combustion chamber of a homogeneous charge compression ignition internal combustion engine that performs EGR communicates with an intake passage and an exhaust passage. The combustion chamber is opened and closed to the intake passage with an intake valve, and is opened and closed to the exhaust passage with an exhaust valve. The closing timing of the exhaust valve in the exhaust stroke is advanced relative to the top dead center of the piston. A supercharger of a variable supercharging pressure type is located in the intake passage. This configuration expands the operational range of the engine to a higher load region.

摘要翻译： 执行EGR的均质充气压缩点火式内燃机的燃烧室与进气通路和排气通路连通。 燃烧室通过进气阀打开和关闭到进气通道，并且通过排气阀打开和关闭到排气通道。 排气冲程中的排气门的关闭正时相对于活塞的上止点前进。 可变增压型增压器位于进气通道中。 该配置将发动机的运行范围扩大到更高的负载区域。