Filter with safety element for filtering engine oil
AssigneeFilterwerk Mann & Hummel GmbH
InventorsHerbert Jainek, Roland Wiederhold
Life of this patent
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Abstract
A filter for filtering the lubricating oil in an internal combustion engine. The filter comprises a housing (10) having an unfiltered oil inlet and a filtered oil outlet. A filter element (16) is disposed in the housing (10). A cover (13) is provided with a safety element (20) which effectively prevents the housing (10) from being closed by the cover (13) if the filter element (16) is missing. The safety element is a tipping member affixed to the housing or the cover and which tips under the force of gravity into a blocking position when the filter element is missing.
Claims3
A filter for filtering lubricating oil in an internal combustion engine, said filter comprising a housing having an inlet for unfiltered oil and an outlet for filtered oil, a filter element arranged in said housing, a cover for closing said housing and surrounding said filter element, and a safety element which prevents the cover from closing the housing if the filter element is missing, said safety element comprising a tipping member affixed to the housing or cover which tips under the force of gravity into a blocking position when the filter element is missing and prevents the cover from being put on the housing.
Dependencies are inferred from the claim text.