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    • 88. 发明申请
    • METHOD AND APPARATUS FOR VENTING EXHAUST GAS FROM AN ENGINE
    • 用于从发动机排放排气的方法和装置
    • WO2005103457A3
    • 2006-11-23
    • PCT/US2005007565
    • 2005-03-08
    • MTD PRODUCTS INCASSAD ABDUL S
    • ASSAD ABDUL S
    • F01N1/02F01N1/08F01N1/14F01N1/24F01N3/02F01N3/28F01N13/00F01N13/14F01N13/18F02B35/00
    • F01N13/1877F01N1/02F01N1/081F01N1/083F01N3/2853F01N3/2885F01N13/002F01N13/14F01N13/1888F01N2210/04F01N2230/04F01N2270/02F01N2470/20F01N2530/26F01N2590/06
    • A muffler (10) for coupling to an exhaust port of an internal combustion engine. The muffler (10) includes a housing (12) having an exhaust inlet (20) configured to receive exhaust gas from the engine, at least one internal expansion chamber (30) and an outlet opening (48). The muffler (10) further includes a diffuser cover (22) attached to the housing (12) over the exhaust opening (48) of the housing (12) forming an exhaust outlet of the muffler. The diffuser cover (22) forms a trap chamber (50), a restricted throat (60) and an ejector portion (52). The ejector portion (52) is configured to draw in ambient air through an air inlet (54) to cool the exhaust gas as it passes through the exhaust outlet (48). The restricted throat (60) is positioned downstream from said trap chamber (50) and has a smaller cross-sectional area than the trap chamber (50) so as to increase the velocity of the exhaust gas as the exhaust gas passes through the restricted throat (60) and into the ejector portion (52) so as to aid in drawing in ambient air.
    • 一种用于联接到内燃机的排气口的消音器(10)。 消声器(10)包括具有排气入口(20)的壳体(12),该排气入口构造成从发动机,至少一个内部膨胀室(30)和出口开口(48)接收废气。 消音器(10)还包括扩散器盖(22),其在壳体(12)的排气开口(48)的上方附接到壳体(12),形成消音器的排气出口。 扩散器盖(22)形成捕集室(50),受限喉部(60)和喷射器部分(52)。 喷射器部分(52)构造成通过空气入口(54)吸入环境空气中,以便在排气通过排气出口(48)时冷却排气。 限制喉部(60)位于所述捕集室(50)的下游并且具有比捕获室(50)更小的横截面面积,以便随着废气通过限制喉部而增加废气的速度 (60)并进入喷射器部分(52)中,以帮助在环境空气中拉伸。