| 摘要 |
<p>A valve assembly (10, 110, 210, 310, 410, 510, 610, 710, 810) for a fuel tank (12, 112, 212, 312, 412, 512, 612, 712, 812) for a small engine includes a housing (14, 114, 214, 314, 414, 514, 614, 714, 814). A membrane (28, 128, 228, 328, 428, 528, 628, 728, 828) is supported by the housing (14, 114, 214, 314, 414, 514, 614, 714, 814) such that the membrane (28, 128, 228, 328, 428, 528, 628, 728, 828) covers a housing opening (30, 130, 230, 330, 430, 530, 630, 730, 830). The membrane (28, 128, 228, 328, 428, 528, 628, 728, 828) allows the passage of vapor through the membrane (28, 128, 228, 328, 428, 528, 628, 728, 828) and into the housing cavity (20, 120, 220, 320, 420, 520, 620, 720, 820) and prevents the passage of liquid through the membrane (28, 128, 228, 328, 428, 528, 628, 728, 828). A pressure relief valve (34, 134, 234, 334, 434, 534, 634, 734, 834) is supported by the housing (14, 114, 214, 314, 414, 514, 614, 714, 814) to control flow of a vapor through the housing cavity (20, 120, 220, 320, 420, 520, 620, 720, 820).</p> |
