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1. 发明公开

EP1162361A2 Carburetor with diaphragm type fuel pump 有权
标题翻译： Vergaser mit Membranbrennstoffpumpe
公开(公告)号：EP1162361A2
公开(公告)日：2001-12-12
申请号：EP01113749.4
申请日：2001-06-05
申请人： WALBRO CORPORATION
发明人： Pattullo, George M. , Schmidt, Thomas L.
IPC分类号： F02M17/04
CPC分类号： F02M17/04 , Y10S261/68
摘要： For a four-stroke engine, a carburetor with a fuel pump diaphragm which defines a fuel pump chamber on one side and a pressure pulse chamber on its other side in communication with the engine to receive pressure pulses which actuate the fuel pump diaphragm to draw fuel into the carburetor and to discharge fuel under pressure to a downstream fuel metering assembly. An air passage communicates an air supply with the pressure pulse chamber to provide an air flow within the pressure pulse chamber which sweeps away, dries out or aerates and removes any liquid fuel within the pressure pulse chamber to avoid puddling of liquid fuel therein. In one form, a throttle valve carried by the carburetor body for movement between idle and wide open positions also actuates a valve which controls the flow of fluid through the air passage as a function of the position of the throttle valve.
摘要翻译：对于四冲程发动机，具有燃料泵隔膜的化油器，其在一侧限定燃料泵室，并且在另一侧限定与发动机连通的压力脉冲室，以接收致动燃料泵隔膜以抽吸燃料的压力脉冲进入化油器并在压力下将燃料排放到下游燃料计量组件。空气通道将空气供应与压力脉冲室连通，以在压力脉冲室内提供空气流，该空气流扫过，干燥或通气并且去除压力脉冲室内的任何液体燃料，以避免液体燃料在其中的搅动。在一种形式中，由化油器主体承载的用于在空转位置和大开位置之间移动的节气门阀还致动阀，该阀门根据节流阀的位置来驱动通过空气通道的流体流动。

2. 发明授权

EP1162361B1 Carburetor with diaphragm type fuel pump 有权
标题翻译：化油器用膜片燃油泵
公开(公告)号：EP1162361B1
公开(公告)日：2004-08-25
申请号：EP01113749.4
申请日：2001-06-05
申请人： WALBRO CORPORATION
发明人： Pattullo, George M. , Schmidt, Thomas L.
IPC分类号： F02M17/04 , F02M37/04
CPC分类号： F02M17/04 , Y10S261/68

3. 发明公开

EP1162361A3 Carburetor with diaphragm type fuel pump 有权
标题翻译：化油器用膜片燃油泵
公开(公告)号：EP1162361A3
公开(公告)日：2003-07-09
申请号：EP01113749.4
申请日：2001-06-05
申请人： WALBRO CORPORATION
发明人： Pattullo, George M. , Schmidt, Thomas L.
IPC分类号： F02M17/04 , F02M37/04
CPC分类号： F02M17/04 , Y10S261/68
摘要： For a four-stroke engine, a carburetor with a fuel pump diaphragm which defines a fuel pump chamber on one side and a pressure pulse chamber on its other side in communication with the engine to receive pressure pulses which actuate the fuel pump diaphragm to draw fuel into the carburetor and to discharge fuel under pressure to a downstream fuel metering assembly. An air passage communicates an air supply with the pressure pulse chamber to provide an air flow within the pressure pulse chamber which sweeps away, dries out or aerates and removes any liquid fuel within the pressure pulse chamber to avoid puddling of liquid fuel therein. In one form, a throttle valve carried by the carburetor body for movement between idle and wide open positions also actuates a valve which controls the flow of fluid through the air passage as a function of the position of the throttle valve.

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