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公开(公告)号：US06533254B1
公开(公告)日：2003-03-18
申请号：US09971839
申请日：2001-10-05
IPC分类号： F02M116
CPC分类号： F02M17/04 , F02M1/16 , Y10S261/08 , Y10T137/7882 , Y10T137/7883
摘要： A carburetor for a small internal combustion engine has a manual priming fuel pump with a resilient valve for allowing fuel flow in a first direction and for preventing fuel flow in a second direction. The resilient valve is reinforced with longitudinally extending ribs to prevent recirculation of fuel through an outlet orifice of the valve in a running engine. The outlet orifice is defined by a distal end of a tubular portion of the valve press fitted and projecting into an outlet passage that communicates with a pump chamber defined by a resilient domed cap. The ribs project laterally outward from the tubular portion within the outlet passage. Integral with an opposite end of the resilient valve is a head which flexes outward to open an inlet passage which then communicates with the pump chamber.
摘要翻译： 用于小型内燃机的化油器具有手动起动燃料泵，其具有用于允许燃料沿第一方向流动并用于防止燃料在第二方向上流动的弹性阀。 弹性阀通过纵向延伸的肋来加强，以防止燃料通过运行的发动机中的阀的出口孔再循环。 出口孔由阀压合器的管状部分的远端限定，并且突出到与由弹性圆顶帽限定的泵室连通的出口通道中。 肋条从出口通道内的管状部分横向向外突出。 与弹性阀的相对端成一体是向外弯曲以打开入口通道的头部，该入口通道然后与泵室连通。
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公开(公告)号：US06454246B1
公开(公告)日：2002-09-24
申请号：US09715999
申请日：2000-11-17
申请人： Timothy K. Grifka , Terry O. Hendrick , Kevin L. Israelson , Eric L. King , Albert L. Sayers , John C. Woody
发明人： Timothy K. Grifka , Terry O. Hendrick , Kevin L. Israelson , Eric L. King , Albert L. Sayers , John C. Woody
IPC分类号： F02M512
CPC分类号： F02M19/06 , Y10S261/39
摘要： A carburetor has an upper body and a lower separate nozzle post member that extends into the fuel chamber of a lower fuel bowl. The nozzle post member has a main nozzle mixing passage leading from a main fuel jet inlet to a nozzle. An annular air passage and an annular idle fuel passage surround the mixing passage. The nozzle post member also has integrally formed brackets to pivotally mount the fuel float.
摘要翻译： 化油器具有延伸到下燃料碗的燃料室中的上部主体和下部独立的喷嘴柱部件。 喷嘴柱构件具有从主燃料喷射入口引导到喷嘴的主喷嘴混合通道。 环形空气通道和围绕混合通道的环形惰性燃料通道。 喷嘴柱构件还具有一体形成的支架以枢转地安装燃料浮子。
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公开(公告)号：US06615792B1
公开(公告)日：2003-09-09
申请号：US10139428
申请日：2002-05-06
申请人： Timothy K. Grifka , Terry O. Hendrick , Kevin L. Israelson , Eric L. King , Albert L. Sayers , John C. Woody
发明人： Timothy K. Grifka , Terry O. Hendrick , Kevin L. Israelson , Eric L. King , Albert L. Sayers , John C. Woody
IPC分类号： F02B7700
CPC分类号： F02M3/02 , F02M3/042 , Y10S123/11
摘要： A fuel shut-off system for a carburetor substantially reduces or prevents the delivery of fuel to an engine when the engine is turned off and as it coasts to a stop. The fuel shut-off system preferably reduces or eliminates the pressure differential across a nozzle through which fuel is delivered from a fuel chamber through a fuel-and-air mixing passage of the carburetor and into the engine. In this manner, the flow of fuel through the nozzle is reduced and preferably eliminated immediately upon engine turn-off to prevent the after-fire and associated problems within a residually hot exhaust system. The system incorporates an actuator, preferably a solenoid valve, having a first position which obstructs a vacuum bypass passage communicating between the fuel chamber and the fuel-and-air mixing passage, and a second position which enables communication between the vacuum bypass passage and a fuel chamber passage which otherwise communicates with a near atmospheric pressure source.
摘要翻译： 用于化油器的燃料切断系统在发动机关闭时并且随着停止而大幅度地减少或防止向发动机输送燃料。 燃料切断系统优选地减少或消除喷嘴之间的压力差，通过该喷嘴，燃料从燃料室通过化油器的燃料和空气混合通道输送到发动机中。 以这种方式，通过喷嘴的燃料流动被减少并且优选地在发动机关闭时立即消除，以防止在热余热系统内的火灾和相关问题。 该系统包括致动器，优选电磁阀，其具有第一位置，该第一位置阻碍在燃料室和燃料和空气混合通道之间连通的真空旁路通道;以及第二位置，其能够使真空旁路通道和 燃料室通道，否则与近乎大气压力源连通。
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