| 摘要 |
An electronic oil filter apparatus comprising an oil filter (20) and a bypass valve (22). Pressure build up within the filter (20) caused by clogging of the filter results in opening the bypass valve (22) allowing dirty oil to flow around the filter. When the valve is actuated in response to excess pressure build up, a low voltage switching device allows current to flow to a signal means (74) thereby indicating a need to change the filter.
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