Mitsubishi Heavy Industries Limited

Japan Aerospace Exploration Agency

Nobuki Negoro

Hiroyuki Kobayashi

Kosuke Nishikawa

Daiki Watanabe

Masaki Adachi

Hideto Kawashima

Kyozo Mizuno

Akihide Kurosu

Tetsuya Morifuji

A cooling mechanism includes a bottom wall () in contact with a combustion chamber, an upper wall (), and a cooling passage () arranged between the bottom wall () and the upper wall (). The cooling passage () includes a first passage () extending to a first direction, a second passage () extending to the first direction, and a connection section () connected with the first passage () and the second passage (). The second passage () is arranged to have an offset to the first passage () in a second direction perpendicular to the first direction and along the bottom wall ().

Cooling mechanism of combustion chamber, rocket engine having cooling mechanism, and method of manufacturing cooling mechanism

According to this brazing method, a first base member having a non-plated surface, a metal layer for functioning as a diffusion barrier layer, a brazing foil, and a second base member having a surface are arranged in this order so that the non-plated surface of the first base member and the surface of the second base member are faced with each other. The first base member and the second base member are brazed by using the brazing foil. The cost of providing a diffusion barrier layer between the first base member and the brazing foil is thereby reduced.

Brazing method

Growing community of inventors

Ibaraki, Japan

Nobuki Negoro