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    • 10. 发明授权
    • Air filter with composite end cap
    • 带复合端盖的空气过滤器
    • US08016922B2
    • 2011-09-13
    • US12897539
    • 2010-10-04
    • Brian T. Ehrenberg
    • Brian T. Ehrenberg
    • B01D46/00
    • B01D46/521B01D46/2414B01D2279/60Y10S55/05Y10T29/49
    • The air filter element may include an inner metal liner, an outer metal liner, a filter media, an annular end cap, and a composite end cap The annular end cap is formed over the metal liners such that the metal liners are secured and at least a portion of the filter media is sealed. The composite end cap has a foamed urethane portion and a rigid urethane portion. The foamed urethane portion, which has a central aperture and stand-off apertures, is molded about the central aperture and the stand-off apertures such that the metal liners are secured, at least a portion of the filter media is sealed, and urethane flashing occurs proximate one or more of the central aperture and an outer liner periphery. The rigid urethane portion is molded over the foamed urethane portion such that the stand-off apertures are filled, blocked, and/or sealed.
    • 空气过滤器元件可以包括内金属衬套,外金属衬套,过滤介质,环形端盖和复合端盖。环形端盖形成在金属衬套之上,使得金属衬垫固定并且至少 过滤介质的一部分被密封。 复合端盖具有泡沫聚氨酯部分和刚性聚氨酯部分。 具有中心孔和支座孔的发泡氨基甲酸酯部分围绕中心孔和支座孔模制成金属衬垫被固定,至少一部分过滤介质被密封,聚氨酯闪烁 发生在中心孔和外衬里周边的一个或多个附近。 刚性聚氨酯部分被模制在发泡的聚氨酯部分上,使得支座孔被填充,封闭和/或密封。