Patent ID: 6351934
Filing Date: 2002-03-05
Classification: F02C

Abstract:
A method of cooling a surface of a wave rotor comprising:providing the wave rotor having a rotatable rotor with a plurality of fluid passageways for the passage of a working fluid therethrough, the wave rotor having a plurality of outlet ports through an outlet endplate for allowing the discharge of fluid from the wave rotor and a plurality of inlet ports for allowing the entry of fluid to the wave rotor, the outlet ports including a to-turbine port and a to-purge-and-burner port and the plurality of inlet ports including a from-burner port and a purge-inlet port; rotating the rotor so as to sequentially pass the plurality of fluid passageways by the plurality of wave rotor ports; and closing the to-purge-and-burner port prior to arrival at the outlet endplate of a hot-to-cold interface between a hot working fluid entering the wave rotor through the from-burner port and a lower temperature working fluid existing within the wave rotor prior to entry of the fluid through the from-burner port; and opening the purge-inlet port to admit a purge fluid into the wave rotor while the to-purge-and-burner port is closed.