Heat-insulating engine with swirl chamber
    1.
    发明公开
    Heat-insulating engine with swirl chamber 失效
    WärmeisolierterMotor mit Wirbelkammer。

    公开(公告)号:EP0420641A1

    公开(公告)日:1991-04-03

    申请号:EP90310594.8

    申请日:1990-09-27

    发明人: Matsuoka, Hiroshi

    IPC分类号: F02B19/08 F02B7/04

    摘要: The heat-insulating engine with swirl chamber of this invention injects a fuel at a low pressure along the inner wall surface (21) of swirl chambers (4) having a heat-insulating structure by subsidiary nozzles (2) equipped with an accumulation chamber for accumulating temporarily the fuel from a fuel pressurization pump (22,28) and having a needle valve opened and closed electrically, from the second half of an intake stroke to a compression stroke, and then injects mainly the fuel from a fuel injection pump (23) by main nozzles (3), into the swirl chambers (4) from the second half of the compression stroke to an expansion stroke. Atomization of the fuel from the subsidiary nozzles (2) may be to such an extent that the fuel merely attaches to the wall surface (21); hence, the subsidiary nozzles (2) can be of accumulation type low pressure injection type. Accordingly, the fuel pressurization pump (22,28) itself can be made compact in size and light in weight and the cost of production can be reduced. The fuel from the subsidiary nozzles (2) is injected to the wall surface (21) of the swirl chambers (4) in the contact state so as to deprive the wall surface (21) of the heat and thus to recover the heat. Main injection is effected following the subsidiary injection and a rich mixture is generated inside the swirl chambers (4) so as to restrict the generation of NOX and to improve cycle efficiency. Furthermore, it is possible to prevent a lean mixture from diffusing into cylinders (14). since the fuel of subsidiary injection is caused to stay inside the swirl chambers (4), degradation of hydrocarbon components can be reduced.

    摘要翻译: 本发明的具有涡流室的隔热发动机沿着具有隔热结构的涡旋室(4)的内壁面(21)沿低压喷射燃料,辅助喷嘴(2)配备有用于 从燃料加压泵(22,28)中临时累积燃料,并且从进气冲程的后半部到打开冲程开启和关闭针阀,然后主要从燃料喷射泵(23 )通过主喷嘴(3)从压缩行程的后半部到膨胀冲程进入涡流室(4)。 来自辅助喷嘴(2)的燃料的雾化可以是这样的程度,即燃料仅附着在壁表面(21)上; 因此,辅助喷嘴(2)可以是积聚型低压喷射型。 因此,燃料加压泵(22,28)本身可以制造得紧凑,重量轻,并且可以降低生产成本。 来自辅助喷嘴(2)的燃料在接触状态下被喷射到涡流室(4)的壁面(21),从而剥离壁面(21),从而回收热量。 主喷射在辅助喷射之后进行,并且在涡流室(4)内部产生丰富的混合物,以限制NOX的产生并提高循环效率。 此外,可以防止贫混合物扩散到气缸(14)中。 由于辅助喷射燃料停留在涡流室(4)内,所以可以降低烃成分的降解。

    Combustion control apparatus for engine
    4.
    发明公开
    Combustion control apparatus for engine 有权
    Verbrennungssteuervorrichtungfüreine Brennkraftmaschine

    公开(公告)号:EP1234960A3

    公开(公告)日:2004-05-26

    申请号:EP02004027.5

    申请日:2002-02-22

    摘要: A combustion control apparatus for an engine (1) having a variable valve timing mechanism (13a, 13b) is disclosed which is capable of varying valve timings of an exhaust valve (7) and an intake valve (6), which is adapted to establish a combustion mode to be either one of the following three modes, namely a four-cycle compression ignition combustion mode at a low and medium load area, a two-cycle spark ignition combustion mode at a high load area, and a four-cycle spark ignition combustion mode at a high speed area. Further, the apparatus establishes the valve timings of the exhaust and intake valves (7, 6) so as to form a negative overlap period in which both exhaust and intake valves (7, 6) concurrently close in the neighborhood of the exhaust top dead center (TDC), when the combustion mode is established to be the compression ignition combustion mode and establishes the valve timings of the exhaust and intake valves (7, 6) so as to carry out a gas exchange once per one revolution of the engine (1), when the combustion mode is established to be the two-cycle spark ignition combustion mode.

    摘要翻译: 公开了一种具有可变气门正时机构(13a,13b)的发动机(1)的燃烧控制装置,其能够改变排气门(7)和进气门(6)的气门正时,其适于建立 燃烧模式为以下三种模式中的任一种,即在低负荷区域的四循环压缩点火燃烧模式,高负荷区域的双循环火花点火燃烧模式和四循环火花 点火燃烧模式在高速区域。 此外,该装置建立排气和进气门(7,6)的气门正时,以便形成负重叠时段,排气和进气门(7,6)同时在排气上止点 (TDC),当燃烧模式被建立为压缩点火燃烧模式并且建立排气和进气门(6,7)的气门正时,以便每发动机(1)进行一次气体交换 ),当燃烧模式建立为双循环火花点火燃烧模式时。

    Combustion control apparatus for engine
    5.
    发明公开
    Combustion control apparatus for engine 有权
    一种用于内燃发动机的燃烧控制装置

    公开(公告)号:EP1234960A2

    公开(公告)日:2002-08-28

    申请号:EP02004027.5

    申请日:2002-02-22

    IPC分类号: F02B5/02 F02B7/04 F02D13/02

    摘要: A combustion control apparatus for an engine (1) having a variable valve timing mechanism (13a, 13b) is disclosed which is capable of varying valve timings of an exhaust valve (7) and an intake valve (6), which is adapted to establish a combustion mode to be either one of the following three modes, namely a four-cycle compression ignition combustion mode at a low and medium load area, a two-cycle spark ignition combustion mode at a high load area, and a four-cycle spark ignition combustion mode at a high speed area. Further, the apparatus establishes the valve timings of the exhaust and intake valves (7, 6) so as to form a negative overlap period in which both exhaust and intake valves (7, 6) concurrently close in the neighborhood of the exhaust top dead center (TDC), when the combustion mode is established to be the compression ignition combustion mode and establishes the valve timings of the exhaust and intake valves (7, 6) so as to carry out a gas exchange once per one revolution of the engine (1), when the combustion mode is established to be the two-cycle spark ignition combustion mode.

    Heat-insulating swirl chamber engine
    6.
    发明公开
    Heat-insulating swirl chamber engine 失效
    运动员wirrmisolierter Wirbelkammer。

    公开(公告)号:EP0420456A1

    公开(公告)日:1991-04-03

    申请号:EP90310051.9

    申请日:1990-09-13

    发明人: Matsuoka, Hiroshi

    IPC分类号: F02B19/08 F02B7/04

    摘要: In a heat-insulating swirl chamber engine of this invention, a fuel is injected subsidiarily from subsidiary nozzles (2) along the inner wall surfaces (16) of swirl chambers (4) of a heat-insulating structure from the second half of an intake stroke to the first half of a compression stroke, so that a lean mixture formed in the swirl chambers (4) does not diffuse into cylinders (14), deterioration of hydrocarbon components can be prevented and moreover, since the fuel comes into contact with the wall surfaces (16) of the swirl chamber, heat energy can be recovered from the wall surfaces (16). Next, the fuel is mainly injected from main nozzles (3) into the swirl chambers (4) from the second half of the compression stroke to the first half of an expansion stroke, so that the inside of the swirl chambers (4) becomes fuel-rich due to the lean mixture formed in advance in the swirl chambers (4) and the fuel by the main injection, combustion is effected in the fuel-rich state to restrict the generation of NOx and moreover, cycle efficiency can be improved because the main combustion period is shortened.

    摘要翻译: 在本发明的绝热涡流室发动机中,燃料从辅助喷嘴(2)沿着绝热结构的旋转室(4)的内壁表面(16)辅助地从进气口的后半部分 冲程到压缩冲程的前半部分,使得形成在涡流室(4)中的贫混合物不会扩散到气缸(14)中,可以防止烃组分的劣化,此外,由于燃料与 涡流室的壁面(16)可以从壁面(16)回收热能。 接下来,燃料主要从主喷嘴(3)从压缩行程的后半部分向膨胀冲程的前半部分喷射到涡流室(4)中,使得涡流室(4)的内部变成燃料 由于在涡流室(4)中预先形成的稀混合物和通过主喷射而形成燃料,所以在富燃状态下进行燃烧以限制NOx的产生,此外,由于可以提高循环效率 主燃烧时间缩短。

    Variable ignition type diesel-gasoline dual fuel powered combustion engine, system, and method
    7.
    发明公开
    Variable ignition type diesel-gasoline dual fuel powered combustion engine, system, and method 有权
    柴油 - 双联燃料比较器动力学变量Zündung,系统和Verfahren

    公开(公告)号:EP2604830A1

    公开(公告)日:2013-06-19

    申请号:EP12196979.4

    申请日:2012-12-13

    摘要: A variable ignition type diesel-gasoline dual fuel powered combustion engine and control method can select spark ignition or compression ignition depending on the engine operating range. The variable ignition type diesel-gasoline dual fuel powered combustion engine includes a cylinder block formed of a plurality of cylinders each being connected to an air intake manifold sucking air or a gasoline fuel-mixed air and an exhaust manifold exhausting an exhaust gas after combustions; and an ECU controlling the combustion modes. The engine operating ranges are judged by the speed and load of the engine. When the range is the high load range or the low load range, a gasoline fuel combustion is performed, and when the range is between the high load range and the low load range, a diesel-gasoline dual fuel powered step is performed.

    摘要翻译: 可变点火型柴油双燃料动力燃料发动机和控制方法可根据发动机工作范围选择火花点火或压缩点火。 可变点火式柴油 - 双燃料动力燃料发动机包括由多个气缸形成的气缸体,每个气缸均连接到吸入空气或汽油燃料混合空气的进气歧管和在燃烧之后排出废气的排气歧管; 以及控制燃烧模式的ECU。 发动机工作范围由发动机的速度和负载决定。 当该范围是高负载范围或低负载范围时,执行汽油燃料燃烧,并且当该范围在高负载范围和低负载范围之间时,执行柴油 - 汽油双燃料供电步骤。

    APPARATUS AND METHOD FOR FUEL FLOW RATE, FUEL TEMPERATURE, FUEL DROPLET SIZE, AND BURNER FIRING RATE MODULATION
    8.
    发明公开
    APPARATUS AND METHOD FOR FUEL FLOW RATE, FUEL TEMPERATURE, FUEL DROPLET SIZE, AND BURNER FIRING RATE MODULATION 审中-公开
    DEVICE AND METHOD FOR燃油流量,高温燃料,燃料液滴尺寸和燃烧器燃烧速率调制

    公开(公告)号:EP1963638A2

    公开(公告)日:2008-09-03

    申请号:EP06847995.5

    申请日:2006-12-22

    IPC分类号: F02B7/04

    摘要: 'Flash heating' fuel management and burner firing rate modulation techniques include the provision of an apparatus and method for controlling and modulating both the fuel flow rate and fuel droplet size by precise control of fuel temperature and pressure. The heat required for 'flash heating' the fuel is supplied by heaters having known energy-input to heat-output ratios such that the fuel flow rate can be calculated based on the energy required to cause 'flash heating'. Air flow rates are calculated using a measurement of the rate of heat loss to the surrounding atmosphere through the walls of the fuel heating device. 'Flash heating' fuel management and burner firing rate modulation techniques provide improved combustion system efficiency, versatility, and robustness, and are utilized as an in-line fuel flow meter for remote monitoring of the fuel flow rates and the prediction of problems in system functionality and future system failure time frames.