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    • 5. 发明专利
    • Premixture compression hypergolic combustion engine
    • 高性能压缩高压燃烧发动机
    • JP2007187093A
    • 2007-07-26
    • JP2006006085
    • 2006-01-13
    • Toyota Industries Corp株式会社豊田自動織機
    • MOMOSE YOSHIJI
    • F02B23/06F02B1/12F02D13/02F02D41/02F02F3/00F02F3/26
    • F02D41/3035F02B23/0621F02B23/0639F02B23/0672F02D13/0265Y02B30/52Y02T10/125Y02T10/18
    • PROBLEM TO BE SOLVED: To provide a premixture compression hypergolic combustion engine for actualizing operation corresponding to a wide load range. SOLUTION: A combustion recessed part 7 has a gas residual portion 19 recessed outward beyond an opening peripheral edge 18 in the radial direction of a piston 4. Fresh air hardly flows into the gas residing portion 19, and so when internal EGR gas is mixed with the fresh air and compressed, an area where the concentration of the internal EGR gas is high and an area where it is low are formed in a combustion chamber 9. The internal EGR gas is high-temperature burnt gas and heat is insulated near the gas residual portion 19 by a heat insulating part 8. Thus, a high-temperature site is formed in the combustion chamber 9 near the gas residual portion 19 of the combustion recessed part 7 where the concentration of the internal EGR gas is high and such stratified temperature distribution is formed around the high-temperature site that a temperature is gradually lower as being farther from the gas residual portion 19. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种用于实现对应于宽负载范围的操作的预混合压缩式高压燃烧发动机。 解决方案:燃烧凹部7具有在活塞4的径向方向上向外突出于开口周缘18的气体残留部19.新鲜空气几乎不流入气体驻留部19,因此当内部EGR气体 与新鲜空气混合并被压缩,在内部EGR气体的浓度高且面积较小的区域形成在燃烧室9中。内部EGR气体是高温燃烧气体,热量绝缘 通过隔热部分8靠近气体残留部分19.因此,在内部EGR气体的浓度高的燃烧凹部7的气体残留部分19附近的燃烧室9中形成高温部位, 在高温部位周围形成温度逐渐降低的分层温度分布,与气体残留部分19相比越来越远。(C)2007,JPO&INPIT
    • 9. 发明专利
    • Combustion chamber of compression-ignition type internal-combustion engine
    • 压缩式点火式内燃机的燃烧室
    • JPS59211716A
    • 1984-11-30
    • JP8595283
    • 1983-05-18
    • Takemasa KamimotoMitsubishi Precision Co Ltd
    • KAMIMOTO TAKEMASAKUMAZAWA TOSHIHARU
    • F02B3/06F02B23/06
    • F02B23/0696F02B3/06F02B23/0603F02B23/0621F02B23/0639F02B23/0651F02B2275/14Y02T10/125
    • PURPOSE:To atomize jetted-out fuel by arranging an jetted-out fuel collision wall member in a combustion chamber and arranging the upper wall surface of said wall member on the fuel injection axis line of a fuel injection valve so as to be set oppositely to the nozzle port of the fuel injection valve. CONSTITUTION:Fuel is jetted-out towards the top surface of a piston 2 from a fuel injection valve 15 arranged on the inner wall surface of a cylinder head 3. A jetted-fuel collision member 8 is arranged over the center part of a concaved top-surface part 2b and formed integrally with the piston 2. The upper wall surface 9 of the member 8 is arranged oppositely to a nozzle port 6, and the apex of the upper wall surface 9 is positioned on the fuel injection axis line K of the fuel injection valve 5. Thus, atomization of jetted-out fuel and mixing of fuel and air can be accelerated.
    • 目的:通过将喷射出的燃料碰撞壁构件布置在燃烧室中来雾化喷出的燃料,并将所述壁构件的上壁表面布置在燃料喷射阀的燃料喷射轴线上,使其与 燃油喷射阀的喷嘴口。 构成:燃料从设置在气缸盖3的内壁面上的燃料喷射阀15向活塞2的上表面喷出。喷射燃料碰撞部件8布置在凹面顶部的中心部分 表面部分2b并与活塞2一体形成。构件8的上壁表面9与喷嘴端口6相对地布置,并且上壁表面9的顶点位于燃料喷射轴线K上 燃料喷射阀5.因此,可以加速喷出的燃料的雾化和燃料和空气的混合。
    • 10. 发明专利
    • Structure of piston head of direct ignition type diesel engine
    • 直喷式柴油发动机活塞杆结构
    • JPS5918225A
    • 1984-01-30
    • JP12574782
    • 1982-07-21
    • Isuzu Motors Ltd
    • HARA SHINJIISHIDA SHIROU
    • F02B3/06F02B23/06
    • F02B23/0639F02B3/06F02B23/0621F02B23/0624F02B23/0669F02B23/0678F02B2275/14Y02T10/125
    • PURPOSE:To atomize a fuel and to make the combustion of the fuel complete by a method wherein the inner wall surface of a cavity provided in the piston head with the center of the cavity held eccentric with respect to that of a fuel injection nozzle is kept spaced a substantially equal distance from the center of the nozzle. CONSTITUTION:A cavity 4 is provided in the piston head 5 in such a manner that a swirling current of compressed air generates in a piston head clearance 3. The center O2 of the cavity 4 is made to lie eccentric with respect to the plane center O1 of the fuel injection nozzle 2. In this case, the inner wall surface 11 of the cavity 4 is curved to extend radially and outwardly while keeping a predetermined distance expressed by the equation of O1f1=O1f2=O1f3=O1f4, from the center O1 of the nozzle 2. Further, the parts f1 and f4 of the inner wall 11 at which parts the wall 11 cannot keep the predetermined distance from the center O1 of the nozzle are curved radially and outwardly so that the distance between the center O1 and the part f1 is equal to that between the center O1 and the part f4 to thereby make the wall 11 keep the predetermined distance from the center of the nozzle 2.
    • 目的:为了雾化燃料并通过一种方法使燃料燃烧完成,其中保持设置在活塞头中的空腔的内壁表面与空腔的中心相对于燃料喷嘴的偏心保持偏心 与喷嘴的中心间隔开大致相等的距离。 构成:在活塞头5中设置有空腔4,使得在活塞头间隙3中产生压缩空气的涡流。空腔4的中心O2相对于平面中心O1偏心 在这种情况下,空腔4的内壁表面11弯曲成径向和向外延伸,同时保持由O1f1 = O1f2 = O1f3 = O1f4等式表示的预定距离,从O1f1 = O1f3 = O1f4的中心O1 喷嘴2.此外,壁11的不能保持与喷嘴的中心O1的预定距离的部分的内壁11的部分f1和f4径向向外弯曲,使得中心O1与部分之间的距离 f1等于中心O1和部分f4之间的距离,从而使壁11保持与喷嘴2的中心的预定距离。