| 摘要 |
A sediment basin and baffle combination for internal combustion engines, which combination includes a sediment basin in the bottom of the engine oil pan for accumulating sediment and contaminants from the engine oil and a baffle positioned over the sediment basin for limiting re-entry of the accumulated sediment back into the oil reservoir from the sediment basin. In a preferred embodiment the baffle includes a baffle grid constructed from one or more layers of elongated baffle elements, each having a triangular-shaped cross-section. Each baffle element is oriented in the baffle grid with a triangle apex of each baffle element facing upwardly to promote drainage of sediment and contaminant deposits through the grid, into the sediment basin and a triangle base of each baffle element facing downwardly toward the sediment basin to retard sediment and contaminant re-entry into the oil. In one embodiment the elements of one of the grid layers are disposed in perpendicular relationship with respect to the elements of the adjacent grid layer or layers, and in another embodiment the single-layered grid is characterized by multiple, intersecting longitudinal and transverse baffle elements provided in a single plane. In still another embodiment the baffle is characterized by a baffle grate having at least one layer and preferably, two layers of parallel baffle elements, and the baffle elements of one layer are staggered or offset and parallel with respect to the elements of the adjacent layer or layers. In a most preferred embodiment the sediment basin and baffle combination includes a baffle ring that overhangs the sediment basin and, with the baffle, retards sloshing of the basin sediment back through the baffle, into the oil reservoir in the pan.
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