| 摘要 |
The filter (10) for engine coolant consists of a housing (12) and filter element (14), comprising a cylindrical container (28) surrounded by and supporting a tubular pleated filter medium or sleeve. The container has an upper plate with rim flange and a lower plate with rim flange and a tubular wall within which are spaced disk partitions forming chambers. The chambers are respectively filled with predetermined dosages of corrosion inhibitor for coolant, in particulate form. Part of the coolant flows through a number of inlet orifices for filtering by the filter sleeve. As the coolant becomes corrosive the disk partition disintegrates, releasing inhibitor. Other partitions continue the process.
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