Heat exchanger apparatus for electrical components

A heat exchanger apparatus for electrical components submerged in a dielectric liquid, comprising:

• means defining a closed main chamber for holding said dielectric liquid and a non-condensible gas above the liquid;
• means defining a closed blockage chamber for holding said non-condensible gas and segregating said gas and vapors of said liquid formed during operation of the heat exchanger, the blockage chamber being positioned within said main chamber in contact with the dielectric liquid, the side walls of said chambers being spaced from each other to form narrow condensation and segregating duct means within which the vapors of said liquid rise and condense;
• and
• orifice means in said closed blockage chamber near the top thereof, the orifice means being sized to allow entry into the blockage chamber of the non-condensible gas as the gas is swept up said duct means but to inhibit entry of the liquid should the apparatus be inverted or experience zero gravity forces.

A heat exchanger apparatus for electrical components submerged in a dielectric liquid, comprising:

• means defining a closed main chamber for holding said dielectric liquid and a non-condensible gas above the liquid;
• means defining a closed blockage chamber for holding said non-condensible gas and segregating said gas and vapors of said liquid formed during operation of the heat exchanger, the blockage chamber being positioned within said main chamber in contact with the dielectric liquid, the side walls of said chambers being spaced from each other to form narrow condensation and segregating duct means within which the vapors of said liquid rise and condense;
• orifice means in said closed blockage chamber near the top thereof, the orifice means being sized to allow entry into the blockage chamber of the non-condensible gas as the gas is swept up said duct means but to inhibit entry of the liquid should the apparatus be inverted or experience zero gravity forces;
• channel means extending from the top wall of the blockage chamber, through the chamber to the bottom thereof, for the return to the bottom of the main chamber of liquid condensing on the top of the blockage chamber;
• and
• air impingement means about the closed main chamber for directing cooling air thereagainst.