US 12,404,824 B2
Reinforced bulging tank of launch vehicle and manufacturing method therefor
Lipeng Wang, Suzhou (CN); Peiying Zhu, Suzhou (CN); Chenlong Liu, Suzhou (CN); and Zhongyi Liu, Suzhou (CN)
Assigned to Guangnian Exploration (Jiangsu) Space Technology Co., Ltd, Suzhou (CN)
Filed by Light-year Explorer (Jiangsu) Space Technology Co., Ltd, Suzhou (CN)
Filed on May 9, 2023, as Appl. No. 18/314,270.
Claims priority of application No. 202211426624.0 (CN), filed on Nov. 15, 2022.
Prior Publication US 2024/0159204 A1, May 16, 2024
Int. Cl. F17C 1/02 (2006.01); C21D 7/12 (2006.01); C22F 1/04 (2006.01); C22F 1/10 (2006.01); F02K 9/60 (2006.01); F17C 1/14 (2006.01); B23K 101/00 (2006.01); B60K 15/03 (2006.01)
CPC F02K 9/605 (2013.01) [C21D 7/12 (2013.01); C22F 1/04 (2013.01); C22F 1/10 (2013.01); F17C 1/02 (2013.01); F17C 1/14 (2013.01); B23K 2101/006 (2018.08); B23P 2700/50 (2013.01); B60K 2015/03032 (2013.01); C21D 2241/01 (2013.01); F17C 2201/0109 (2013.01); F17C 2201/054 (2013.01); F17C 2203/012 (2013.01); F17C 2203/0609 (2013.01); F17C 2203/0643 (2013.01); F17C 2203/0646 (2013.01); F17C 2203/0651 (2013.01); F17C 2209/2181 (2013.01); F17C 2209/221 (2013.01); F17C 2209/228 (2013.01); F17C 2221/012 (2013.01); F17C 2223/0115 (2013.01); F17C 2260/011 (2013.01); F17C 2270/0197 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A reinforced bulging tank of a launch vehicle, comprising a barrel section body (9), barrel section thickening regions (5) arranged on both ends of the barrel section body (9), longitudinal reinforcing ribs (7) arranged on inner walls of the barrel section body (9) and the barrel section thickening regions (5), and annular frames (8) and annular plates (6) which are matched and reinforced with the longitudinal reinforcing ribs (7);
wherein a front end surface of the barrel section thickening regions (5) is provided with a front bottom (2) and a front short shell (4); the front bottom (2) is connected with the barrel section thickening regions (5) through the front short shell (4);
a rear end surface of the barrel section thickening regions (5) is provided with a rear short shell (10) and a rear bottom (12); the rear bottom (12) is connected with the barrel section thickening regions (5) through the rear short shell (10);
wherein the front short shell (4) is provided with a front end frame (3);
the rear short shell (10) is provided with a rear end frame (11);
a manhole (1) is arranged in the top middle of the front bottom (2);
wherein the longitudinal reinforcing ribs (7) are processed as “C”-sectional strips by annealed metal sheets, and two side edges are welded with inner wall surfaces of the barrel section body (9) and the barrel section thickening regions (5) respectively through low energy laser.