Patent ID: 7255096
Filing Date: 2007-08-14
Classification: F02M,F28D,F28F

Abstract:
1. A method of manufacturing a gas heat exchanger comprising the steps of: providing a coolant conduit; providing a gas cooling conduit; providing a gas by-pass conduit; disposing at least a portion of said gas cooling conduit between at least a portion of said coolant conduit and at least a portion of said gas bypass conduit such that said gas cooling conduit is configured to provide a thermal barrier between said coolant conduit and said gas by-pass conduit; and further comprising the steps of disposing said gas by-pass conduit substantially within said gas cooling conduit, such that said gas by-pass conduit and said gas cooling conduit are substantially concentric; disposing at least one first spacer between said gas by-pass conduit and said gas cooling conduit such that said first spacer maintains said gas by-pass conduit and said gas cooling conduit in a substantially concentric position; disposing said gas cooling conduit substantially within said coolant conduit, such that said gas cooling conduit and said coolant conduit are substantially concentric; disposing at least one second spacer between said gas cooling conduit and said coolant conduit such that said second spacer maintains said gas cooling conduit and said coolant conduit in a substantially concentric position; and affixing said coolant conduit, said gas cooling conduit and said gas bypass conduit together at at least one end.