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    • 47. 发明申请
    • ENGINE EXHAUST SYSTEM
    • 发动机排气系统
    • WO1996017158A1
    • 1996-06-06
    • PCT/GB1995002810
    • 1995-12-01
    • FORD MOTOR COMPANY LIMITEDFORD WERKE A.G.FORD FRANCE S.A.FORD MOTOR COMPANYMA, Thomas, Tsoi, Hei
    • FORD MOTOR COMPANY LIMITEDFORD WERKE A.G.FORD FRANCE S.A.FORD MOTOR COMPANY
    • F01N07/08
    • F02B37/18F01N13/08F01N13/10F01N13/14F02B37/02F02M26/14Y02T10/144
    • A multicylinder engine exhaust manifold system comprises a first manifold (24) having branches (22) leading from individual exhaust ports (20) of the engine to a downpipe (26), and a second manifold (34) for interconnecting the exhaust ports (20) and also having branches (32) leading to the individual exhaust ports (20) of the engine. The cross-sectional area of each branch (32) of the second manifold (34) facing the exhaust flow from the associated exhaust valve is no less than 25 % of the total port area and the branches of both manifolds (24, 34) terminate within the ports (20) in close proximity to the exhaust valves (18). In this way, a large proportion of the exhaust flow discharged from the exhaust valve of one cylinder is captured by the associated branch (32) of the second manifold (34) and distributed by the second manifold (34) to the exhaust ports (20) of adjacent cylinders where the exhaust valves (18) are closed and leave the exhaust ports (20) of the adjacent cylinders through the associated branches (22) of the first manifold (24), scouring the closed ends of the exhaust ports (20) in the process.
    • 多缸发动机排气歧管系统包括具有从发动机的各个排气口(20)引导到下水管(26)的分支(22)的第一歧管(24)和用于互连排气口(20)的第二歧管(34) )并且还具有通向发动机的各排气口(20)的分支(32)。 第二歧管(34)的与相关联的排气阀相对的排气流的每个分支(32)的横截面积不小于总端口面积的25%,并且两个歧管(24,34)的分支终止 在靠近排气门(18)的端口(20)内。 以这种方式,从一个气缸的排气阀排出的废气流的大部分被第二歧管34的相关联的分支(32)捕获,并由第二歧管(34)分配到排气口(20) ),其中排气门(18)关闭并且通过第一歧管(24)的相关联的分支(22)离开相邻气缸的排气口(20),冲洗排气口(20)的封闭端 ) 正在进行中。
    • 49. 发明申请
    • INTAKE MANIFOLD SYSTEM
    • 入口管理系统
    • WO1995022687A1
    • 1995-08-24
    • PCT/GB1995000055
    • 1995-01-12
    • FORD MOTOR COMPANY LIMITEDFORD WERKE A.G.FORD FRANCE S.A.FORD MOTOR COMPANYMA, Thomas, Tsoi-Hei
    • FORD MOTOR COMPANY LIMITEDFORD WERKE A.G.FORD FRANCE S.A.FORD MOTOR COMPANY
    • F02B17/00
    • F02M35/10045F02B1/04F02B17/00F02B29/00F02B2075/027F02B2075/1816F02M26/20F02M26/44F02M35/10216F02M35/10222F02M35/10255F02M35/10262F02M35/1085Y02T10/146
    • An intake manifold system (10) is described for a multi-cylinder four stroke spark-ignition internal combustion engine (12). Each cylinder has at least one intake port (20), each intake port (20) being connected at one end to the combustion chamber by at least one intake valve (14) and at the other end to a first intake duct (22) that is connected to a first plenum (24) common to the first intake ducts (22) of other engine cylinders. Each intake port (20) is also supplied by a second intake duct (32) the through-flow cross section of which is 25% to 45% of the maximum effective through-flow cross section of the open intake valve. The geometry of the intake port (20) and of the discharge end of the second intake duct (32) is such that the gas that enters from one side of the intake port (20), is constrained by solid boundary walls to perform a single U-turn by flowing around the intake valve stem (14) while adhering to the walls of the intake port (20) and enters the first intake duct (22) via the other side of the intake port (20), the gas thereby scavenging the closed end of the intake port (20) and displacing substantially all the gases previously present therein into the first intake duct (22).
    • 对于多气缸四冲程火花点火内燃机(12),描述了进气歧管系统(10)。 每个气缸具有至少一个进气口(20),每个进气口(20)在一端通过至少一个进气门(14)连接到燃烧室,另一端连接到第一进气管(22),该第一进气管 连接到与其它发动机气缸的第一进气管道(22)共用的第一增压室(24)。 每个进气口(20)还由第二进气管道(32)提供,其第二进气管道(32)的通流截面为打开的进气门的最大有效通流截面的25%至45%。 进气口(20)和第二进气管道(32)的排放端的几何形状使得从进气口(20)的一侧进入的气体被固体边界壁约束以执行单个 通过在进气口(20)的壁处流过吸入阀杆(14)并通过进气口(20)的另一侧进入第一进气管道(22)的U形转弯,从而清除气体 所述进气口(20)的封闭端部基本上将先前存在的所有气体移位到所述第一进气管道(22)中。