Patent ID: 6694743
Filing Date: 2004-02-24
Classification: F01D,F02C,F02K,F05D

Abstract:
A rotary ramjet engine, said engine comprising:(a) an engine case comprising a substantially cylindrical tubular interior wall; (b) a rotor and shaft rotatably disposed with respect to said engine case, (i) said shaft oriented along a longitudinal axis, (ii) said rotor disposed for rotary motion in a plane perpendicular to said longitudinal axis, and (iii) said rotor having a rim surface portion; (c) at least one set of spaced apart strakes, (i) each of said at least one set of strakes disposed along a first helical axis with respect to said plane of rotary motion of said rotor, (ii) each of said at least one set of strakes extending outward from said rim surface portion of said rotor toward said interior wall of said engine case, less a running clearance therefrom; (d) at least one inlet centerbody for each set of strakes, (i) said at least one inlet centerbody disposed along a second helical axis, (ii) said at least one inlet centerbody comprising a leading edge structure, opposing sidewalls and a rear end wall; (e) wherein said strakes in each of said set strakes cooperate to define, rearward of said rear end wall of said at least one inlet centerbody, a combustor for trapping and mixing therewithin an inlet fluid and for providing a space therewithin for combustion of said inlet fluid to produce high energy products of combustion and to turn said rotor to produce power at said shaft.