Patent ID: 7621473

Claim:
A ring jet, comprising: (a) a cylindrical member having an inner face and an outer face, and a first end and a second end, thereby defining a hollow interior wherein said cylindrical member has a cowl lip configuration at said second end; and (b) a fluid acceleration region at said second end of said cylindrical member, comprising: (i) a nozzle plug at said second end of said cylindrical member, comprising a means for securing said nozzle plug to said cylindrical member, a partially-cylindrical portion connected to said means for securing said nozzle plug to said cylindrical member, said partially-cylindrical portion having an upstream end proximate to said means for securing said nozzle plug and a downstream end closer to said second end, and a ramped portion connected with said downstream end of said partially-cylindrical portion, said ramped portion having a proximal end and a distal end; and (ii) a fluid compression orifice defined by said ramped portion of said nozzle plug and said cowl lip of said cylindrical member, wherein said compression orifice is in a ‘C’ shape when viewed into said ring jet at said second end.