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1. 发明授权

US06394426B1 Engine dual fuel supply apparatus 失效
标题翻译：发动机双燃料供应装置
公开(公告)号：US06394426B1
公开(公告)日：2002-05-28
申请号：US09612076
申请日：2000-07-07
申请人： William E. Galka , Joseph M. Graham , Anthony M. Kueffner , Peter P. Kuperus , Ronald H. Roche
发明人： William E. Galka , Joseph M. Graham , Anthony M. Kueffner , Peter P. Kuperus , Ronald H. Roche
IPC分类号： F02M712
CPC分类号： F02M17/04 , F02M7/22
摘要： An engine fuel apparatus has a fuel and air mixing passage through which a rich fuel and air mixture is provided to an engine to support the operation of the engine at idle and low speed, low load engine operation, and a pressurized fuel delivery passage provides liquid fuel to a downstream fuel injector for operation of the engine at high load, high speed and wide open throttle engine operating conditions. A shut-off valve prevents the flow of fuel to the mixing passage when a throttle valve therein, which controls engine operation, is opened a predetermined amount from idle to prevent the flow of the fuel into the mixing passage at high load and/or high speed engine operation. Another shut-off valve prevents the flow of pressurized fuel to the downstream fuel injector device when the throttle valve is between idle and a predetermined position off of idle to prevent the flow of pressurized fuel to the fuel injector device under low speed, low load engine operation. Desirably, a camshaft rotated in response to rotation of the throttle valve is used to actuate both shut-off valves.
摘要翻译：发动机燃料装置具有燃料和空气混合通道，通过该燃料和空气混合通道将丰富的燃料和空气混合物提供给发动机以在怠速和低速，低负载发动机运行时支持发动机的操作，并且加压燃料输送通道提供液体燃料到下游燃料喷射器，用于在高负载，高速和大开度节气门发动机运行条件下操作发动机。当其中控制发动机操作的节流阀从怠速打开预定量时，截止阀防止燃料流向混合通道，以防止燃料在高负载和/或高压下进入混合通道高速发动机运转。当节流阀处于怠速状态和空闲状态之间的预定位置时，另一个截止阀防止加压燃料流向下游燃料喷射器装置，以防止加压燃料在低速低负载发动机下流向燃料喷射器装置操作。理想地，响应于节流阀的旋转而旋转的凸轮轴用于致动两个截止阀。

2. 发明授权

US06494180B1 Implement having speed regulation 失效
标题翻译：实行调速
公开(公告)号：US06494180B1
公开(公告)日：2002-12-17
申请号：US09654422
申请日：2000-09-01
申请人： Jörg Schlossarczyk
发明人： Jörg Schlossarczyk
IPC分类号： F02M712
CPC分类号： F02M17/04 , F01P5/02 , F02B63/02 , F02B2075/025 , F02B2075/027 , F02D31/009 , F02D2009/0216 , Y10S261/68
摘要： A manually guided implement having an internal combustion engine is provided. A fuel/air mixture is supplied to the internal combustion engine via a diaphragm carburetor. The engine is cooled by a cooling fan that is driven by the internal combustion engine and that generates an air stream. The diaphragm carburetor has a fuel-filled control chamber with a control diaphragm which on that side facing away from the control chamber delimits a compensation chamber. To limit speed, a control pressure line is provided between the compensation chamber and the air stream generated by the cooling fan.
摘要翻译：提供了一种具有内燃机的手动导向装置。燃料/空气混合物通过隔膜化油器供给内燃机。发动机由内燃机驱动的冷却风扇冷却并产生气流。隔膜式化油器具有燃料填充控制室，其具有控制膜片，该控制膜片在远离控制室的一侧限定补偿室。为了限制速度，在补偿室和由冷却风扇产生的气流之间提供控制压力线。

3. 发明授权

US06401685B1 Carburetor with a fuel shut off solenoid 失效
标题翻译：化油器与燃油关闭电磁阀
公开(公告)号：US06401685B1
公开(公告)日：2002-06-11
申请号：US09776443
申请日：2001-02-02
申请人： Donald W. Warner
发明人： Donald W. Warner
IPC分类号： F02M712
CPC分类号： F02M7/12
摘要： A fuel shut off solenoid device of a carburetor has a solenoid chamber which typically fills with fuel. When the solenoid device is energized, fuel flows from a fuel chamber into a mixing passage of the carburetor to mix with air. During the energized state, heat from the solenoid tends to vaporize the fuel within the solenoid chamber. Also when energized, the solenoid device is held in a retracted position whereby a head at a distal end of the shaft mates with or seals to a washer which in turn seals to an upward face of the encasement of the fuel shut off solenoid device. Thus the potential migration of large vapor bubbles from the solenoid chamber to the mixing passage of the carburetor is eliminated, providing a smoother idling or running engine at light loads.
摘要翻译：化油器的燃料切断螺线管装置具有通常充满燃料的螺线管室。当螺线管装置通电时，燃料从燃料室流入化油器的混合通道，与空气混合。在通电状态期间，来自螺线管的热量趋于使电磁阀室内的燃料蒸发。此外，当通电时，螺线管装置被保持在缩回位置，由此轴的远端处的头部与垫圈配合或密封，垫圈进一步密封到燃料切断螺线管装置的外壳的向上的表面。因此，消除了大气泡从电磁阀到化油器的混合通道的潜在迁移，从而在轻负载下提供更平滑的空转或运行的发动机。

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