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    • 62. 发明授权
    • Direct injection diesel engines
    • 直喷柴油发动机
    • US08770168B2
    • 2014-07-08
    • US13575792
    • 2011-01-26
    • Richard CornwellFabrizio Conicella
    • Richard CornwellFabrizio Conicella
    • F02F3/26
    • F02B23/0672F02B3/06F02B23/0669F02B23/0693F02B2275/14Y02T10/123Y02T10/125
    • A piston for a four valve direct injection diesel engine defines a combustion chamber comprising a recess (10) in the piston crown, which is rotationally symmetrical about the axis of the piston in axial cross-section and is defined by a base and a side wall. A generally conical projection (5) is upstanding from the base. The recess (10) includes a lower toroidal portion (8) and an upper portion (10), whose diameter progressively increases towards the piston crown. The upper and lower portions of the recess are separated by an annular, arcuate lip (12) extending into the recess. The included angle of the conical projection (5) is between 104° and 108°, the maximum depth of the recess (10) is between 13% and 22% of the diameter of the piston, the conical projection (5) merges with the base of the recess along a circular line whose diameter is between 38% and 44% of the diameter of the piston, the diameter of the lip (12) is between 54% and 59% of the diameter of the piston, the line of minimum diameter of the lip (12) is situated at a distance between 5% and 10% of the diameter of the piston from the plane of the piston crown and the diameter of the upper portion (10) of the recess increases from 54% to 59% of the diameter of the piston at the line of minimum diameter of the lip to between 72% and 76% of the diameter of the piston at the line where the side wall of the recess intersects the plane of the piston crown.
    • 用于四阀直接喷射柴油发动机的活塞限定了燃烧室,其包括在活塞冠部中的凹部(10),其在轴向横截面中围绕活塞的轴线旋转对称并且由基部和侧壁 。 大致圆锥形的凸起(5)从基座直立。 凹部(10)包括下环形部分(8)和上部(10),其直径朝向活塞顶部逐渐增加。 凹槽的上部和下部由延伸到凹部中的环形弧形唇缘(12)分开。 锥形突起(5)的夹角在104°至108°之间,凹部(10)的最大深度在活塞直径的13%至22%之间,锥形突起(5)与 沿着直径为活塞直径的38%至44%的圆形直径的凹槽的底部,唇缘(12)的直径在活塞直径的54%至59%之间,最小线 唇部(12)的直径位于距离活塞顶面平面的活塞直径的5%至10%之间,并且凹部的上部(10)的直径从54%增加到59 在唇部的最小直径线处的活塞的直径的百分比在活塞的侧壁与活塞冠的平面相交的线处的活塞的直径的72%和76%之间。
    • 65. 发明授权
    • Carburettors
    • 化油器
    • US08011641B2
    • 2011-09-06
    • US12374551
    • 2007-07-20
    • James Copeland
    • James Copeland
    • F02M13/04
    • F02M13/046F02B25/22F02B2075/025F02D9/1045F02D2009/0279F02M23/03Y02T10/146Y10S261/01
    • A carburettor includes a flow duct (4) including rich (8) and lean (10) passages in parallel, through which, in use, air flows and which are separated by a substantially planar partition (6). At least one fuel jet (12, 14, 16) communicates with the rich passage (8). The partition (6) includes a circular aperture (20). A butterfly valve (24) is mounted on a pivotal shaft (22) to be pivotable between a closed position, in which the flow duct (4) is substantially closed, and an open position, in which the flow duct is substantially open. The pivotal shaft (22) extends perpendicular to the plane of the partition (6). The pivotal shaft (22) carries a circular obturator disc (26), whose diameter is substantially equal to that of the aperture (20) and which is received in the aperture (20) and substantially closes the aperture (20) at all positions of the butterfly valve (24).
    • 化油器包括平行包括富(8)和稀(10)通道的流动管道(4),在使用中空气流过该流道,并由基本平坦的隔板(6)分隔。 至少一个燃料喷嘴(12,14,16)与富通道(8)连通。 分隔件(6)包括圆形孔(20)。 蝶阀(24)安装在枢转轴(22)上,以在流动管道(4)基本上封闭的关闭位置和流动管道基本上打开的打开位置之间枢转。 枢转轴(22)垂直于分隔件(6)的平面延伸。 所述枢转轴(22)承载圆形的闭塞圆盘(26),其直径基本上等于所述孔(20)的直径,并且其被接收在所述孔(20)中并在所述孔(20)的所有位置处基本上封闭所述孔 蝶阀(24)。
    • 70. 发明申请
    • Carburettor
    • 化油器
    • US20090020895A1
    • 2009-01-22
    • US11791631
    • 2005-11-25
    • Stephen Glover
    • Stephen Glover
    • F02M19/08
    • F02D9/1045F02B25/22F02M19/081Y10S261/01
    • A carburettor for a two stroke engine includes a flow duct comprising rich and lean flow passages separated by a partition, at least one fuel jet communicating with the rich passage, the partition including an aperture towards which the fuel jet is directed, and a substantially planar butterfly valve being received in the aperture so as to be pivotable between a first position, in which the flow duct is substantially closed and the aperture is substantially open, and a second position, in which the flow duct is substantially open and the aperture is substantially closed, the flow duct further comprising a venturi section located substantially upstream of the aperture, and wherein the venturi section extends only partially around a perimeter of the flow duct.
    • 用于二冲程发动机的化油器包括流动管道,其包括由分隔件分隔的富气和贫流动通道,与富通道连通的至少一个燃料喷射器,所述分隔件包括燃料喷射器所引导的孔,并且基本上平面 蝶阀被容纳在孔中,以便可在第一位置和第二位置之间枢转,该第一位置在流体管道基本上封闭的第一位置和开口基本上敞开的第一位置和第二位置,其中流动管道基本上是开口的, 关闭,流动管道还包括大致位于孔的上游的文丘里管部分,并且其中文氏管部分仅部分地围绕流动管道的周边延伸。