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公开(公告)号:US20130161843A1
公开(公告)日:2013-06-27
申请号:US13531790
申请日:2012-06-25
IPC分类号: F02M9/08
摘要: A carburettor including a primary air passage, an adjustable throttle valve situated within the primary air passage, a fuel supply nozzle communicating with the primary air passage and connected to a fuel metering valve for varying the amount of fuel discharged through the nozzle and a rotary input shaft adapted to be connected to an engine speed control member and which is connected to the throttle valve to move the throttle valve between open and closed positions. The rotary input shaft is also connected to a carriage to move the carriage, the carriage carrying at least one elongate inclined ramp which extends in the direction of movement of the carriage and which is engaged by a follower connected to the valve member. Rotation of the input shaft results in movement of the throttle valve and in movement of the carriage and thus of the elongate ramp, wherein the follower is moved transverse to the length of the ramp and the valve member of the fuel metering valve is thus also moved.
摘要翻译: 一种化油器,包括主空气通道,位于主空气通道内的可调节节流阀,与主空气通道连通并连接到燃料计量阀的燃料供应喷嘴,用于改变通过喷嘴排出的燃料量和旋转输入 轴适于连接到发动机速度控制构件,并连接到节流阀,以将节流阀在打开位置和关闭位置之间移动。 旋转输入轴还连接到滑架以移动滑架,滑架承载至少一个细长的倾斜斜面,其沿着滑架的运动方向延伸并且由连接到阀构件的随动件接合。 输入轴的旋转导致节流阀的移动和滑架以及因此的细长斜面的移动,其中从动件横向于斜坡的长度移动,并且燃料计量阀的阀构件因此也被移动 。
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公开(公告)号:US06283460B1
公开(公告)日:2001-09-04
申请号:US09202697
申请日:1999-02-16
IPC分类号: F02M2312
CPC分类号: F02M3/10 , F02M7/22 , Y10S261/01 , Y10S261/38 , Y10S261/48
摘要: An improved fuel air mixture apparatus which enhances the degree of mixing of fuel with air. The fuel-air mixture device includes a primary air passage having an inlet, an adjustable throttle and an outlet; a secondary air passage having an inlet and an outlet to the primary air passage between its adjustable throttle and its outlet; a nozzle having an orifice opening into the secondary air passage for introducing a flow of fuel therein; a needle arranged co-axially of the nozzle with its small diameter at least normally extending from the orifice into the secondary air passage, the needle being axially moveable to provide variability of the orifice and control of the fuel flow; a control device for directly linking or controlling the position of the needle to the position of the adjustable throttle in the primary air passage for adjustment of the orifice of the nozzle. The arrangement is such that the fuel flow from the nozzle is matched to the position of the adjustable throttle and the fuel flowing from the orifice towards the small diameter end of the needle mixes with air flowing through the secondary passage prior to mixing with the air flowing through the primary air passage.
摘要翻译: 改进的燃料空气混合装置,其提高燃料与空气的混合度。 燃料 - 空气混合装置包括具有入口,可调节节流阀和出口的主空气通道; 二次空气通道,其具有在其可调节节流阀和其出口之间的主空气通道的入口和出口; 喷嘴,其具有通向二次空气通道的孔口,用于在其中引入燃料流; 所述喷嘴与所述喷嘴同轴布置,其小直径至少通常从所述孔延伸到所述二次空气通道中,所述针可轴向移动以提供所述孔的可变性和所述燃料流的控制; 控制装置,用于将针的位置直接连接或控制到主空气通道中的可调节节流阀的位置,以调节喷嘴的孔口。 该布置使得来自喷嘴的燃料流量与可调节节流阀的位置匹配,并且燃料从喷嘴流向针混合物的小直径端,空气流动通过次级通道,然后与空气流动混合 通过主空气通道。
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