Sump covering filter with bypass valve

An arrangement adapted to filter a circulating fluid used in a transmission or a lubricating system of an internal combustion engine, wherein the fluid has a viscosity which varies with temperature and wherein the fluid accumulates in and is pumped from a sump pan having side walls and a bottom wall;

• the arrangement comprising:
• a partition adapted to divide the sump into an upper chamber and a lower chamber, the partition having an opening therethrough wherein liquid in the upper chamber can flow to the lower chamber through the opening;
• a filter media disposed in the opening for filtering the liquid as it flows between the upper chamber and lower chamber;
• a suction tube having a first open end adapted to be positioned in the lower chamber and a second end adapted to connect to a pump;
• a bypass valve disposed in the partition between the upper chamber of the pan and the pump to which the suction tube connects, the bypass valve opening to allow the fluid to bypass the filter when the viscosity of the fluid is elevated, and
• a peripheral flange around the partition, the peripheral flange having a plurality of spaced apart bolt holes adapted to receive bolts for clamping the partition between the sump pan and the transmission or engine.