| 摘要 |
An oil filter assembly (10) including an oil filter housing (12) defining an oil filter chamber (64) adapted to receive an oil filter element (16), The o il filter housing (12) also definig a port (24), and a valve assembly (22) received within the port (24) for draining oil from the housing (12) when th e filter element (16) is removed from the housing (12). The valve assembly (22 ) includes a spring (34), a valve (32) and a casing (30) disposed about the spring (34), and a valve (32). The casing may include a substantially annula r lip (52) retaining the valve (32) in engagement with the casing (30). The casing (30) defines a casing chamber (60) and the lip (52) retaining a colla r (42) of the valve (32) within the casing chamber (60). The lip also may defi ne a hole for receiving a stem (40) for contacting the filter element (60).</SD OAB>
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