Patent ID: 8496812

Claim:
An oil sump, comprising: a filter housing including a filter housing top shell, a filter housing bottom shell, a filter medium, a filter inlet, and a filter outlet; wherein the filter outlet is provided on the filter housing top shell, and the filter housing bottom shell has a shell floor area which is not permeable to fluid and the filter inlet is provided on the filter housing bottom shell, with the filter inlet being provided at a side region of the filter bottom shell; an oil sump housing including a sump floor area having an oil drain opening closable by an oil drain screw, and a periphery configured to attach the oil sump to a unit, wherein the unit comprises is at least one of an engine block and a transmission; wherein the filter housing bottom shell floor area is adjacent to and overlies a portion of the sump floor area, with substantially no space therebetween, thereby permitting no fluid flow between the inside sump floor and the outside of the bottom shell sump floor; and a carrier unit on which the filter housing is fastened, wherein the carrier unit includes a frame extending around the periphery of the oil sump housing, and wherein the frame is configured to form a seal between the oil sump housing and the unit.