US Patent 7484627 EIP pack for separating oil from water

An oil-water separation pack includes an upper body having cross-sectional shape narrowing from a bottom to a top. The upper body includes an oil rising region provided in an inside central portion thereof, and an oil-discharging opening provided in a top portion thereof. A lower body disposed beneath the upper body includes a plurality of oblique flow-in ports, which allow an oil-water mixture to flow obliquely into an inside portion thereof and flows of the oil-water mixture to collide with each other and stagnate in the inside portion of the lower body, thereby enabling the oil to float and be separated from water. A coupling unit integrally couples a bottom portion of the upper body with a top portion of the lower body, thereby forming a continuous space extending from the lower body to the upper body. The continuous space allows oil to float therethrough.