| 摘要 |
Base for an internal combustion engine filter cartridge, intended to receive s a filter cartridge (3) provided with apertures for the entry of the oil to be filtered and for the exit of the filtered oil, in a respective upwardly facing matching engagement seat (2) provided with oil feed and discharge. channels to be connected to the matching channels of said cartridge, with said seat there being peripherally associated a salient enveloping element (33) with which it forms an oil spill protection compartment, from the bottom of which there extends a recovery conduit (6) connected to a collection site and intercepted by a check valve (66), the closed or open state of which depends on whether the cartridge and seat are mutually engaged or disengaged respectively.
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