公开(公告)号：US11668232B2

公开(公告)日：2023-06-06

申请号：US17613070

申请日：2021-04-16

申请人： BEIHANG UNIVERSITY

发明人： Chongwen Jiang ,  Siyuan Pi ,  Chenhao Xu ,  Zhihao Li ,  Zhenxun Gao ,  Chunxuan Li

IPC分类号： F02B55/08 ,  F02B53/00 ,  F02B53/10 ,  F02B53/12 ,  F02B55/02 ,  F02B55/14 ,  F02F11/00

CPC分类号： F02B55/08 ,  F02B53/00 ,  F02B53/10 ,  F02B53/12 ,  F02B55/02 ,  F02B55/14 ,  F02F11/007

摘要： An oblong-shaped rotor engine with improved high sealing performance includes an upper end cover, a lower end cover, a rotor, three combustion chambers, three isolation zones, a fuel spray ignition unit, a sealing pin row and an eccentric driving shaft, a sealing pin row, which seals the transition zone between different combustion cylinders, wherein the engine according to this invention can better avoid the effect of structural wear, effectively enhance the sealing performance between combustion chambers and abate gas leakage between cylinders, wherein the designed profile and sealing means can enlarge the design error margin for engines, abate the processing difficulty of engines, and effectively decrease the production costs of engines.

公开(公告)号：US12122534B2

公开(公告)日：2024-10-22

申请号：US17908895

申请日：2021-09-07

申请人： BEIHANG UNIVERSITY

发明人： Chongwen Jiang ,  Zhihao Li ,  Shuyao Hu ,  Chenhao Xu ,  Zhenxun Gao ,  Chunhian Lee

IPC分类号： B64F5/00

CPC分类号： B64F5/00

摘要： A direct design method for generating an osculating curved waverider based on a complex leading edge, includes obtaining a leading edgeleading edge through determining a leading edge of a waverider according to a spread length, a front-to-rear length, and a sweep angle at each position of an aircraft, and arranging leading-edge discrete points on the leading edgeleading edge; drawing a small shock cone corresponding to each leading-edge discrete point by starting from each leading-edge discrete point, taking a local shock angle as a half cone angle and taking a free streamline direction as an axis; finding envelope surfaces of all small shock cones, namely, a shock curved surface corresponding to the leading edgeleading edge; generating a waverider by using the osculating curved waverider design method.