Oil cooler with a retained, blow-out proof, and extrusion resistant gasket configuration

In an oil cooler including a housing having a gasket configuration adapted to be face sealed against a mating surface associated with an oil system, the improvement wherein said gasket configuration comprises:

• a base wall extending substantially parallel to the mating surface;
• a pressure responsive, reentrant flange extending from the base wall, adapted to increasingly engage the mating surface in response to pressure increases from the oil system;
• a gasket cavity defined by the base wall and the reentrant flange;
• and
• a gasket received in the gasket cavity.

A pressure energized sealing system for face sealing an oil cooler to a mating surface associated with an oil system, said sealing system comprising:

• a base wall;
• a reentrant flange extending from the base wall;
• a gasket cavity defined by the base wall and the reentrant flange;
• a gasket received in the gasket cavity;
• and
• means for preventing pressure induced extrusion of the gasket when the system is energized by pressure from the oil system, said means comprising a terminal edge on the reentrant flange and pressure responsive cooperating surfaces between the gasket and the base wall and between the gasket and the reentrant flange, the surfaces adapted to forcibly engage the terminal edge with the mating surface in response to pressure from the oil system.

In an oil cooling system including an oil cooler housing adapted to be face sealed against a mating surface including a port connected to the high pressure side of a pressurized oil circulating system, the improvement which comprises:

• a base wall on said housing in parallel relation to said mating surface;
• an annular flange extending from said base wall and defining a radially opening annular groove, said annular groove further facing said port;
• and
• an annular gasket located in said groove between said flange and said port and having a flange facing surface that is complementary with said flange on the side thereof defining said groove,
• said annular gasket, on the side thereof opposite said flange facing surface, having a pressure responsive surface facing said port so that, when said system is operating, oil under pressure from said port will act against said pressure responsive surface to urge said gasket into said groove against said flange.