EXHAUST GAS TREATMENT DEVICE
    2.
    发明公开
    EXHAUST GAS TREATMENT DEVICE 审中-公开
    Abgasreinigungsvorrichtung

    公开(公告)号:EP2505818A1

    公开(公告)日:2012-10-03

    申请号:EP10833293.3

    申请日:2010-11-25

    摘要: An object is to improve a NO x reduction effect by allowing an increase in the amount of exhaust gas circulated to an intake pipe and also achieve energy conservation and a CO 2 reduction by reducing a power consumption amount when NO x in exhaust gas of a diesel engine equipped with a turbocharger is removed by using an EGR system. An EGR conduit 32 that returns a part of exhaust gas e to an intake collecting pipe 13 is provided in an exhaust pipe 16 of a marine diesel engine 10A. An EGR valve 34, an EGR scrubber 36, and an EGR blower 38 are provided in the EGR conduit 32. A transmission shaft 26 of a turbocharger 20 is provided with an electric generator 40, and electric power generated by the electric generator 40 is sent to a drive motor 39 of the EGR blower 38 via a conductive wire 42 to drive the drive motor 39. An SCR catalytic converter 28 is provided in an exhaust pipe 28 on the downstream side of a turbine 22 to remove NO x in the exhaust gas e.

    摘要翻译: 本发明的目的是通过允许增加循环到进气管的废气量来提高NO x还原效果,并且通过在柴油的废气中的NO x减少功率消耗量来实现节能和CO 2还原 配备有涡轮增压器的发动机通过使用EGR系统被去除。 在船用柴油发动机10A的排气管16中设置有将废气e的一部分返回到进气收集管13的EGR导管32。 EGR EGR阀34,EGR洗涤器36和EGR鼓风机38设置在EGR导管32中。涡轮增压器20的传动轴26设置有发电机40,发电机40产生的电力被发送 通过导线42驱动驱动电动机39.将EGR催化剂转换器28设置在涡轮22的下游侧的排气管28中,以除去废气中的NO x 即

    FUEL GAS INJECTION VALVE, DUAL-FUEL GAS ENGINE, AND FUEL GAS INJECTION METHOD
    4.
    发明公开
    FUEL GAS INJECTION VALVE, DUAL-FUEL GAS ENGINE, AND FUEL GAS INJECTION METHOD 审中-公开
    VIELSTOFFGASMOTOR UND GASEINSPRITZVERFAHREN

    公开(公告)号:EP2857668A1

    公开(公告)日:2015-04-08

    申请号:EP13847809.4

    申请日:2013-08-15

    IPC分类号: F02M21/02 F02M61/18

    摘要: A fuel gas injection valve according to the present invention includes: a holder (22) including a first injection hole (61) through which fuel gas is injected to produce premixed fuel, and a second injection hole (62) through which fuel gas is injected to produce diffusion fuel; a first needle valve (23) that slidably reciprocates in the holder (22) along an axial direction to open and close the first injection hole (61) and the second injection hole (62); and a second needle valve (25) having a sealing face (94) on the top thereof and a through-hole (91) provided along the axial direction at the central portion in a radial direction of the second needle valve (25), the sealing face being brought into contact with a needle valve seat (93) provided in the holder (22), the first needle valve (23) being slidably inserted into the through-hole, and the second needle valve (25) reciprocating in the holder (22) along the axial direction to prevent fuel gas from circulating to the first injection hole (61) and the second injection hole (62) when the sealing face (94) is in contact with the needle valve seat (93), and to allow the fuel gas to circulate to the first injection hole (61) or the second injection hole (62) when the sealing face (94) is separated from the needle valve seat (93).

    摘要翻译: 根据本发明的燃料气体注入阀包括:保持器(22),其包括第一注入孔(61),通过该第一注入孔注入燃料气体以产生预混燃料;以及第二注入孔(62),通过该第二注入孔注入燃料气体 产生扩散燃料; 第一针阀(23),其沿着轴向在所述保持器(22)中滑动往复运动,以打开和关闭所述第一喷射孔(61)和所述第二喷射孔(62); 以及在其顶部具有密封面(94)的第二针阀(25)和沿着轴向在第二针阀(25)的径向方向上的中心部分设置的通孔(91), 密封面与设置在保持器(22)中的针阀座(93)接触,第一针阀(23)可滑动地插入通孔中,第二针阀(25)在保持器 (22),以防止当密封面(94)与针阀座(93)接触时燃料气体循环到第一喷射孔(61)和第二喷射孔(62),并且 当密封面(94)与针阀座(93)分离时,允许燃料气体循环到第一喷射孔(61)或第二喷射孔(62)。

    DUAL-FUEL DIESEL ENGINE
    5.
    发明公开
    DUAL-FUEL DIESEL ENGINE 审中-公开
    BI-FUEL-DIESELMOTOR

    公开(公告)号:EP2837802A1

    公开(公告)日:2015-02-18

    申请号:EP13775868.6

    申请日:2013-02-07

    摘要: An object is to, in a low-load operating range of a dual-fuel diesel engine or a dual-fuel diesel engine unit including a plurality of the dual-fuel diesel engines, reduce the amount of injection of oil fuel so as to make it possible to make exhaust gas less harmful and to reduce fuel cost. On a cylinder head 14, a plurality of dual-fuel injectors 24a, 24b are disposed, each of which having a gas fuel injector 26 that injects a gas fuel being a main fuel and a pilot fuel injector 28 that injects an oil fuel "o". In a low-load operating range where it is not necessary for the dual-fuel injectors 24a, 24b to inject fuel at the same time for ignition, fuel is injected alternately from the dual-fuel injectors 24a, 24b and combusted in every single combustion cycle. As a result, it is possible to halve the amount of injection of oil fuel in the low-load operating range.

    摘要翻译: 目的是在双燃料柴油发动机或包括多个双燃料柴油发动机的双燃料柴油发动机单元的低负载运行范围内,减少油燃料的喷射量,从而使 可能使排气的危害较小并降低燃料成本。 在气缸盖14上设置有多个双燃料喷射器24a,24b,每个喷射器24a,24b分别具有喷射作为主要燃料的气体燃料的气体燃料喷射器26和喷射油燃料的引燃燃料喷射器28 ”。 在双重燃料喷射器24a,24b同时喷射燃料用于点火的低负荷运行范围中,燃料从双燃料喷射器24a,24b交替地喷射并在每一次燃烧中燃烧 周期。 结果,可以在低负载运行范围内将油燃料的喷射量减半。

    2-CYCLE GAS ENGINE
    6.
    发明公开
    2-CYCLE GAS ENGINE 审中-公开
    2-CYCLE燃气发动机

    公开(公告)号:EP2837790A1

    公开(公告)日:2015-02-18

    申请号:EP13775611.0

    申请日:2013-01-31

    IPC分类号: F02B23/02 F02B23/08 F02M61/14

    摘要: An object is to provide a two-cycle gas engine in which generation of NOx (nitrogen oxide) is suppressed by promoting premix of fuel gas with air. A two-cycle gas engine includes a cylinder 2, a cylinder head 3, a piston 4 that defines a combustion chamber "c" with a surrounding wall 2a of the cylinder 2 and the cylinder head 3, a fuel gas injector 8 configured to inject fuel gas 8a, 8b into the combustion chamber "c", an ignition unit 10 configured to ignite the fuel gas inside the combustion chamber, a scavenging port 6 configured to supply air into the combustion chamber "c" upon the piston 4 being positioned in vicinity of a bottom dead center, a fuel gas injection timing control unit 12 configured to cause the fuel gas injector 8 to inject the fuel gas 8b upon the piston 4 being positioned at 10° to 100° before top dead center in an ascending stroke and to cause the fuel gas injector 8 to inject the fuel gas 8a upon the piston 4 being positioned in vicinity of the top dead center, and an ignition timing control unit 12 configured to ignite the fuel gas inside the combustion chamber "c" by the ignition unit 10 upon the piston 4 being positioned in the vicinity of the top dead center.

    摘要翻译: 一个目的是提供一种二冲程燃气发动机,其中通过促进燃料气体与空气的预混合来抑制NOx(氮氧化物)的产生。 二冲程燃气发动机包括气缸2,气缸盖3,与气缸2的周壁2a和气缸盖3一起限定燃烧室“c”的活塞4,配置成喷射燃料气体的燃料气体喷射器8 燃料气体8a,8b进入燃烧室“c”,配置成点燃燃烧室内的燃料气体的点火单元10,配置成当活塞4位于燃烧室c内时将空气供应到燃烧室“c”的扫气口6 燃料气体喷射正时控制部12,其在活塞4位于上止点的上死点前10°〜100°的位置时,使燃料气体喷射阀8喷射燃料气体8b; 在活塞4位于上止点附近时使燃料气体喷射阀8喷射燃料气体8a,点火正时控制部12通过点火使点火燃烧室c内的燃料气体点火 单位10在手枪 4位于上死点附近。

    DUAL-FUEL DIESEL ENGINE AND METHOD FOR OPERATING SAME
    8.
    发明公开
    DUAL-FUEL DIESEL ENGINE AND METHOD FOR OPERATING SAME 审中-公开
    双燃料柴油发动机及其操作方法

    公开(公告)号:EP2837803A1

    公开(公告)日:2015-02-18

    申请号:EP13776253.0

    申请日:2013-02-07

    摘要: An object is to, during operation in the single combustion mode where only an oil fuel is injected, prevent blockage of nozzle holes of gas fuel injectors so as to smoothly shift from the single combustion mode to a dual combustion mode. When shifting to the single combustion mode, an electromagnetic opening-and-closing valve V 1 is closed so as to block a gas fuel. Then, an electromagnetic opening-and-closing valve V 3 is opened so as to discharge the gas fuel remaining in a gas fuel supply path 50 to the outside of the system. Then, an electromagnetic opening-and-closing valve V 2 is opened so as to introduce a replacement gas from a replacement gas reservoir tank 44 to the gas fuel supply path 50, thereby replacing the contents inside the gas fuel supply path 50 with the replacement gas. After completing the replacement, the electromagnetic opening-and-closing valves V 2 and V 3 are closed. Next, the electromagnetic opening-and-closing valve V 2 is opened and the replacement gas is injected from the gas fuel injectors 26 to a combustion chamber "c".

    摘要翻译: 本发明的目的在于,在仅喷射油燃料的单一燃烧模式运转时,防止气体燃料喷射阀的喷嘴孔堵塞,从单一燃烧模式向双燃烧模式平稳移动。 当转换到单燃烧模式时,关闭电磁开闭阀V1以阻塞气体燃料。 然后,打开电磁开闭阀V3,将残留在气体燃料供给路径50中的气体燃料排出到系统外部。 接着,打开电磁开闭阀V2,将置换气体从置换气体贮存罐44导入气体燃料供给路径50,由置换气体置换气体燃料供给路径50内的内容物 。 完成更换后,电磁开闭阀V2和V3关闭。 接着,打开电磁开闭阀V2,将替换气体从气体燃料喷射器26喷射到燃烧室“c”。

    2-CYCLE GAS ENGINE
    9.
    发明公开
    2-CYCLE GAS ENGINE 审中-公开
    ZWEITAKT-GASMOTOR

    公开(公告)号:EP2837789A1

    公开(公告)日:2015-02-18

    申请号:EP13776190.4

    申请日:2013-02-07

    摘要: An object is to provide a two-cycle gas engine which makes it possible to suppress generation of black exhaust, PM, or NOx during a gas operation mode. The two-cycle gas engine includes a piston 4 that defines a main combustion chamber c1 with a surrounding wall 2a of a cylinder 2 and a cylinder head 3, a fuel gas injector 8 configured to inject fuel gas 8a, 8b into the main combustion chamber c1, a scavenging port 6 that supplies air into the main combustion chamber c1 upon the piston 4 being positioned in vicinity of a bottom dead center, a precombustion chamber cap 9 that defines a precombustion chamber inside thereof, the precombustion chamber communicating with the main combustion chamber c1 through nozzle holes 9b, a fuel injection timing control unit 12 configured to inject the fuel gas 8b into the main combustion chamber c1 upon the piston being positioned at 10° to 100° before top dead center in an ascending stroke and to inject the fuel gas 8a into the main combustion chamber upon the piston being positioned in the vicinity of the top dead center, and an ignition timing control unit 12 configured to ignite a mixed air of the fuel gas and the air inside the precombustion chamber upon the piston being positioned in the vicinity of the top dead center.

    摘要翻译: 本发明的目的是提供一种双周期燃气发动机,其可以在气体运行模式期间抑制黑色废气,PM或NOx的产生。 双循环燃气发动机包括活塞4,该活塞4限定具有气缸2的周围壁2a和气缸盖3的主燃烧室c1,配置为将燃料气体8a,8b喷射到主燃烧室中的燃料气体喷射器8 c1是在活塞4位于下止点附近时供给空气到主燃烧室c1的清扫口6,在其内部限定预燃室的预燃室盖9,与燃烧室连通的预燃室 腔室c1通过喷嘴孔9b,燃料喷射正时控制单元12,被配置为当活塞在上行程中在上死点之前位于10°至100°时将燃料气体8b喷射到主燃烧室c1中, 燃料气体8a在活塞位于上止点附近时进入主燃烧室,以及点火正时控制单元12,其被配置为点燃t 在活塞位于上止点附近时,燃料气体和预燃室内的空气。

    EXHAUST GAS PURIFICATION METHOD AND EXHAUST GAS PURIFICATION SYSTEM FOR RECIPROCATING INTERNAL COMBUSTION ENGINE
    10.
    发明公开
    EXHAUST GAS PURIFICATION METHOD AND EXHAUST GAS PURIFICATION SYSTEM FOR RECIPROCATING INTERNAL COMBUSTION ENGINE 审中-公开
    ABGASREINIGUNGSVERFAHREN UND ABGASREINIGUNGSSYSTEMFÜREINEN HUBKOLBEN-VERBRENNUNGSMOTOR

    公开(公告)号:EP2514935A1

    公开(公告)日:2012-10-24

    申请号:EP10837340.8

    申请日:2010-10-05

    摘要: In a reciprocating internal combustion engine having a turbocharger, the removal of NO X from exhaust gas with use of a SCR system is made possible without causing deterioration of transient characteristics of the reciprocating internal combustion engine. In a reciprocating marine diesel engine (10) having a turbocharger (30) arranged in an exhaust pipe (38, 44, 48), an aqueous urea solution supply unit (42) is provided in the exhaust pipe (38) upstream of a turbine (34), so that an aqueous urea solution (b) is supplied from an aqueous urea solution tank (40). The aqueous urea solution (b) is evaporated with potential heat of the exhaust gas and hydrolyzed into ammonia gas. The ammonia gas is uniformly stirred and mixed with the exhaust gas in a highly turbulent field of the turbine (34). The exhaust gas is then sent to a SCR catalyst converter (46) provided in the exhaust pipe (44) downstream of the turbocharger (30), where NO X in the exhaust gas is reduced by the ammonia gas into nitrogen and water vapor. Since the aqueous urea solution (b) is supplied to the exhaust pipe (38) upstream of the turbine (34), ammonia gas can be generated without the need of any additional heating equipment such as an auxiliary burner.

    摘要翻译: 在具有涡轮增压器的往复式内燃机中,通过使用SCR系统从废气中除去NO X成为可能,而不会导致往复式内燃机的瞬态特性的劣化。 在具有布置在排气管(38,44,48)中的涡轮增压器(30)的往复式船用柴油发动机(10)中,在涡轮机上游的排气管(38)中设置有尿素水溶液供应单元(42) (34),从尿素水溶液罐(40)供给尿素水溶液(b)。 尿素水溶液(b)用排气的潜热蒸发并水解成氨气。 在涡轮机(34)的高度湍流场中将氨气均匀地搅拌并与废气混合。 然后将废气送到设置在涡轮增压器(30)下游的排气管(44)中的SCR催化剂转换器(46),其中废气中的NO X被氨气还原成氮气和水蒸气。 由于将尿素水溶液(b)供给到涡轮机(34)上游的排气管(38),所以可以产生氨气,而不需要任何附加的加热设备,例如辅助燃烧器。