| 摘要 |
<p>A filter unit comprising a housing element (111) having a first (116) and a second inlet (114) for fluid and a first (118a) and a second outlet (113) for fluid, means (112, 119) in said housing defining a first path of flow for fluid between the first inlet and the first outlet of the housing, means (126, 122, 125) in said housing defining a second path of flow for fluid between the second inlet and the second outlet of the housing, and a filter member in said housing capable of filtration to remove particles of dimensions greater than 5 micrometres, said second path of flow including a path through said filter and a by-pass (130) about said filter having a resistance to flow of fluid no greater than that of said filter whereby in normal use a proportion only of fluid passing through the second flow path passes through said filter, provides fine filtration for an internal combustion engine and is attachable to a conventional engine filter mount.</p> |
