UNIFLOW SCAVENGING TWO-CYCLE ENGINE
    1.
    发明公开
    UNIFLOW SCAVENGING TWO-CYCLE ENGINE 有权
    UNIFLOW清除双循环发动机

    公开(公告)号:EP2891780A1

    公开(公告)日:2015-07-08

    申请号:EP13832951.1

    申请日:2013-08-30

    申请人: IHI Corporation

    摘要: A uniflow-scavenging-type two-cycle engine according to the present invention includes: a cylinder (110) in which a combustion chamber is formed; a piston that slides in the cylinder; a scavenging port (122) that is provided at one end of the cylinder in a stroke direction of the piston and draws in an active gas into the combustion chamber in accordance with a sliding movement of the piston; a fuel injection section (126) that is provided in the scavenging port on an outer side of the cylinder than a center of a width of the scavenging port in a penetration direction and injects a fuel gas to the active gas drawn in into the scavenging port.

    摘要翻译: 根据本发明的单流扫气式二冲程发动机包括:气缸(110),其中形成有燃烧室; 在气缸内滑动的活塞; 扫气口(122),其设置在所述气缸的沿所述活塞的行程方向的一端,并根据所述活塞的滑动移动而将活性气体吸入所述燃烧室; 燃料喷射部(126),其设置于比所述扫气口的贯通方向的宽度的中心靠所述气缸的外侧的所述扫气口,向吸入所述扫气口的所述活性气体喷射燃料气体 。

    DIESEL ENGINE CONTROLLER
    3.
    发明公开
    DIESEL ENGINE CONTROLLER 审中-公开
    柴油发动机控制器

    公开(公告)号:EP1806493A1

    公开(公告)日:2007-07-11

    申请号:EP05790498.9

    申请日:2005-10-04

    摘要: In a diesel engine control device, a normal injection mode that implements normal combustion and a premixed injection mode that implements premixed combustion are set, the normal injection mode is implemented when the actual engine operating conditions are in the normal region, and the premixed injection mode is implemented when the actual engine operating conditions are in the premixed region. When one control mode is being implemented in the corresponding engine operating region, the control mode is forcibly switched to the other control mode when the engine enters a predetermined transition state. This makes it possible to switch earlier than normal, and in particular when accelerating, the desired acceleration performance can be obtained.

    摘要翻译: 在柴油发动机控制装置中,设定实施正常燃烧的正常喷射模式和实施预混合燃烧的预混合喷射模式,当实际发动机工况处于正常区域时实施正常喷射模式,并且预混合喷射模式 当实际的发动机运行条件在预混合区域时实施。 当在相应的发动机工作区域中实现一个控制模式时,当发动机进入预定的过渡状态时,控制模式被强制切换到另一个控制模式。 这使得可以比正常更早地进行切换,并且特别是在加速时可以获得期望的加速性能。

    OPERATION METHOD OF PREMIXED COMPRESSION SELF-IGNITION ENGINE
    6.
    发明公开
    OPERATION METHOD OF PREMIXED COMPRESSION SELF-IGNITION ENGINE 审中-公开
    VERFAHREN ZUM BETRIEB EINER VORGEMISCHTEN MASCHINE MITKOMPRESSIONSSELBSTZÜNDUNG

    公开(公告)号:EP2058483A1

    公开(公告)日:2009-05-13

    申请号:EP07806364.1

    申请日:2007-08-30

    申请人: Yanmar Co., Ltd.

    摘要: Compression ignition is induced by spark ignition to realize stable ignition, thereby expanding an operation range where the compression ignition is operable, even in an operating condition in which the compression ignition is hardly performed. Improvements of cycle efficiency and thermal efficiency and restraint of air-pollution substance emission can be realized by properly adjusting compression ignition timing in a cylinder.
    A method for operating a homogeneous charge compressed ignition engine 11 in which a mixture gas is burned by compression ignition in a combustion chamber of a cylinder, fuel and air being previously mixed to produce the mixture gas, wherein the homogeneous charge compressed ignition engine 11 includes an ignition plug 37 which performs spark ignition to the mixture gas, an advance-angle limit t1 and a delay-angle limit t2 of spark ignition timing are set, the compression ignition of the mixture gas being able to be induced at the spark ignition timing, and the spark ignition is supplementarily performed to the mixture gas according to an operating condition between the advance-angle limit t1 and the delay-angle limit t2.

    摘要翻译: 通过火花点火引起压缩点火,实现稳定的点火,即使在几乎不进行压缩点火的运行状态下,也能够扩大压缩点火可操作的运转范围。 循环效率和热效率的提高和空气污染物质排放的限制可以通过适当调整气缸中的压缩点火正时来实现。 用于操作均质充气压缩点火发动机11的方法,其中混合气体通过预先混合的气缸,燃料和空气的燃烧室中的压缩点火燃烧以产生混合气体,其中均质充气压缩点火发动机11包括 对混合气体进行火花点火的火花塞37,火花点火正时的提前角限制t1和延迟角限制t2被设定,可以在火花点火正时感应混合气体的压缩点火 并且根据提前角限制t1和延迟角限制t2之间的操作条件对混合气体补充火花点火。

    Fuel supply system and fuel supply method for in-cylinder direct fuel injection engine
    7.
    发明公开
    Fuel supply system and fuel supply method for in-cylinder direct fuel injection engine 审中-公开
    Kraftstoffversorgungsanlage und -verfahrenfüreine direkteinspritzende Brennkraftmaschine

    公开(公告)号:EP1505293A1

    公开(公告)日:2005-02-09

    申请号:EP04018633.0

    申请日:2004-08-05

    申请人: Hitachi, Ltd.

    摘要: The invention relates to a fuel supply system and fuel supply method for direct injection engines (507) that realize higher output.
    In a fuel supply system for a direct injection engine (507) of the present invention, equipped with a primary fuel injector (509) that injects fuel directly into the cylinder (507b) of the direct injection engine (507) and a supercharger (534) that increases the intake air quantity of the engine (507), a secondary fuel injector (530) is installed in addition to the primary fuel injector (509). In a specified engine load area, fuel is supplied using the primary fuel injector (509) and the secondary fuel injector (530). Even though the fuel quantity injected from the primary fuel injector (509) into the cylinder (507b) is limited, the fuel supply system for direct injection engine constructed as above can increase the engine output because the fuel insufficiency can be supplied by the secondary fuel injector (530).

    摘要翻译: 本发明涉及一种实现更高输出的直喷式发动机(507)的燃料供给系统和燃料供给方法。 在本发明的用于直喷式发动机(507)的燃料供给系统中,配备有将燃料直接喷射到直接喷射发动机(507)的气缸(507b)中的主燃料喷射器(509)和 除了主燃料喷射器(509)之外还安装有增加发动机(507)的进气量的增压器(534),辅助燃料喷射器(530)。 在指定的发动机负载区域中,使用主燃料喷射器(509)和二次燃料喷射器(530)供应燃料。 即使从主燃料喷射器(509)喷射到气缸(507b)中的燃料量受到限制,因此如上所述构成的直接喷射发动机燃料供给系统可以增加发动机输出,因为燃料不足可以由二次燃料 注射器(530)。

    HIGH POWER DENSITY, DIESEL ENGINE
    8.
    发明公开
    HIGH POWER DENSITY, DIESEL ENGINE 审中-公开
    具有高特异性表现柴油机

    公开(公告)号:EP1064458A4

    公开(公告)日:2004-07-14

    申请号:EP99912541

    申请日:1999-03-17

    发明人: BAKER DOUGLAS M

    摘要: An engine (10) having an engine block (12) with a compression cylinder (22) and an expansion cylinder (24) defined therein. A compression piston (34) is located in the compression cylinder (22) and an expansion piston (36) is located in the expansion cylinder (24). Each piston is connected to a crankschaft (26, 28). A rotary prechamber tube (44), having two, constant volume, combustion chambers (48) defined therein, is positioned within a housing (14) coupled to the engine block (12). Induction and expansion ports respectively forming passageways communicating the compression cylinder (22) and the expansion cylinder (24) with the chambers (48) of the tube (44). The tube (44) itself is rotatably supported in the housing (14) and oriented with its axis (46) being generally transverse to cylinder axes. The engine (10) is operated such that the chambers (48) are successively brought into communication via the induction port with the compression cylinder (22), separated from communication with said compression cylinder (22), brought into a position to receive fuel from said fuel injector (62) and to initiate combustion, and then brought into communication via the expansion port with the expansion cylinder (24) to complete combustion.

    MODIFIED CYLINDER HEAD
    9.
    发明授权
    MODIFIED CYLINDER HEAD 失效
    MODIFIZIERTER ZYLINDERKOPF

    公开(公告)号:EP0555228B1

    公开(公告)日:1996-07-31

    申请号:EP91915404.7

    申请日:1991-08-30

    申请人: CATERPILLAR INC.

    IPC分类号: F02B15/00 F02F1/42 F01L1/26

    摘要: Multiple intake valves operatively associated in a common combustion chamber are advantageous in that the design achieves high output for an internal combustion engine. The subject modified cylinder head utilizes the advantages available in a multiple intake valve system, but further enhances the design by reducing heat rejection. In the subject modified cylinder head, three intake valves (38, 40, 42) having corresponding intake valve ports (26, 28, 30) and one exhaust valve (68) having an exhaust valve port (66) are operatively associated in a common combustion chamber. A reduction in heat rejection is achieved through a relationship between the cross-sectional areas of the intake and exhaust valve ports (26, 28, 30, 66). The intake valve ports (26, 28, 30) are constructed so that their cross-sectional area is larger than about 69 % of the combined cross-sectional area of the intake and the exhaust ports (26, 28, 30, 66).

    摘要翻译: PCT No.PCT / US91 / 06169 Sec。 371日期1991年8月30日 102(e)1991年8月30日PCT 1991年8月30日PCT。与普通燃烧室可操作地连接的多个进气阀的优点在于,该设计实现了内燃机的高输出。 主体改进的气缸盖利用多进气阀系统中的优点,但通过减少散热来进一步增强设计。 在主体改进的气缸盖中,具有相应的进气门口(26,28,30)和具有排气阀口(66)的一个排气阀(68)的三个进气门(38,40,42)可操作地关联在共同的 燃烧室。 通过进气和排气阀口(26,28,30,66)的横截面积之间的关系实现排热减少。 进气门口(26,28,30)构造成使得它们的横截面面积大于进气口和排气口(26,28,30,66)的组合横截面面积的约69%。