AIRCRAFT PROPULSION SYSTEM WITH TURBINE ENGINE EXHAUST HEAT EXCHANGER

An aircraft propulsion system (20) is provided that includes a turbine engine (24) and an exhaust gas heat exchanger (28). The exhaust gas heat exchanger (28) includes a central conduit (52), an outer radial plenum (54), fluid conduits (46), and inter-conduit passages (48). The fluid conduits (46) a...

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Bibliographische Detailangaben
Hauptverfasser:	SMITH, Scott, DUROCHER, Eric S
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AIR INTAKES FOR JET-PROPULSION PLANTS BLASTING COMBUSTION ENGINES CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS GAS-TURBINE PLANTS HEAT EXCHANGE IN GENERAL HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS,IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING WEAPONS
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Beschreibung
Zusammenfassung:	An aircraft propulsion system (20) is provided that includes a turbine engine (24) and an exhaust gas heat exchanger (28). The exhaust gas heat exchanger (28) includes a central conduit (52), an outer radial plenum (54), fluid conduits (46), and inter-conduit passages (48). The fluid conduits (46) are disposed in a nested arrangement. Each fluid conduit (46) has inner and outer radial walls (56, 58) that extend axially between the forward and aft ends (60, 62). The inner and outer radial walls (56, 58) are radially separated to form an internal fluid passage (64). Each fluid conduit (46) is radially spaced apart from adjacent fluid conduits (46) to define an axially extending exhaust gas passages (66). The inter-conduit passages (48) include at least one inter-conduit passage (48) that provides fluid communication between the central conduit (52) and a first fluid conduit (46, FC1), and at least one inter-conduit passage (48) that provides fluid communication between first and second fluid conduits (46, FC1, FC2). A serpentine fluid flow path extends through the fluid conduits (46) and the inter-conduit passages (48).