|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||060/767; 137/015.1; 244/053B; 060/204; 060/768|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 4 인용 특허 : 82|
A supersonic inlet employs relaxed isentropic compression to improve net propulsive force by shaping the compression surface of the inlet. Relaxed isentropic compression shaping of the inlet compression surface functions to reduce cowl lip surface angles, thereby improving inlet drag characteristics and interference drag characteristics. Supersonic inlets in accordance with the invention also demonstrate reductions in peak sonic boom overpressure while maintaining performance.
1. A method of making a supersonic inlet of a jet powered airplane, said airplane designed for flight at a specific and pre-determined Mach number, comprising: providing an inlet comprising a compression ramp and cowl;said cowl having an upstream lip;said compression ramp having an upstream straight compression ramp having an apex, connected downstream with a concave surface relative to the flow, said concave surface connected downstream with a straight surface;providing said apex with an angle and positioning said cowl lip such that at said Mach number,...