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    • 40. 发明申请
    • FUEL TANK VENTING SYSTEM
    • 燃油罐通风系统
    • US20060157117A1
    • 2006-07-20
    • US11004296
    • 2004-12-03
    • William Scott
    • William Scott
    • F16K17/00
    • F16K24/06B60K15/035B60K15/03519Y10T137/0491Y10T137/7897Y10T137/86324
    • A fuel tank venting system includes a fuel cap, a vent diaphragm and a vent disc. A valve cavity with a substantially concave bottom is formed in a bottom of the fuel cap. At least one air passage is formed through the vent disc. A substantially convex surface is formed on a top of the diaphragm projection. The vent diaphragm is retained between the substantially concave bottom and the substantially convex surface. When air is needed for fuel flow, a vacuum within the fuel tank pulls the perimeter of the vent diaphragm downward, which breaks a seal with the substantially concave bottom to allow air flow. In a second embodiment, the fuel tank venting system is contained in a wall of the fuel tank. In a third embodiment, the fuel tank venting system is contained in a fuel vent body, which is attached to the fuel tank.
    • 燃料箱排放系统包括燃料盖,通风隔膜和排气盘。 在燃料盖的底部形成具有基本上凹入的底部的阀腔。 通过排气盘形成至少一个空气通道。 在隔膜突起的顶部上形成大致凸形的表面。 通气隔膜保持在基本上凹入的底部和基本上凸起的表面之间。 当燃料流动需要空气时,燃料箱内的真空将通气隔膜的周边向下拉,这破坏了具有基本凹陷的底部的密封,以允许空气流动。 在第二实施例中,燃料箱排放系统容纳在燃料箱的壁中。 在第三实施例中,燃料箱排放系统容纳在附接到燃料箱的燃料通风口体中。