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Otkrytoe Aktsionernoe Obschestvo Nauchno-proizvodstvennoe Obiedinenie

Nikolai Kondratievich Dudkin

Gennady Grigorievich Derkach

Boris Ivanovich Katorgin

Vladimir Konstantinovich Chvanov

Viktor Nikonorovich Semenov

Jury Vasilievich Movchan

Alexandr Alexandrovich Vasin

Vladimir Jurievich Bogushev

Alexandr Nikolaevich Vycherov

Jury Alexandrovich Pestov

Nikolai Fedorovich Molev

Leonid Alexeevich Tumanov

Nikolai Mikhailovich Grigorkin

Anatoly Ivanovich Grigoriev

Anatoly Lukich Loginov

Galina Andreevna Babaeva

Stanislav Dmitrievich Kamensky

Oleg Andreevich Masljukov

Vladimir Vladimirovich Fedorov

Valery Petrovich Mordashov

Vladimir Veniaminovich Sagalovich

Larisa Mikhailovna Panaskina

Evgeny Ivanovich Baranov

Raisa Vasilievna Chernikova

Galina Vasilievna Shashelova

Ljudmila Alexandrovna Anosova

Jury Alexandrovich Bedov

Oleg Ivanovich Studenikin

A gas generator is produced of separate units, including a mixing head, a casing and an outlet branch pipe, which are interjoined by welding. The mixing head is welded to the outlet branch pipe through a spacer and a structural spherical casing. The spacer and the outlet branch pipe are made of two inter-brazed envelopes, the inner envelopes of the spacer and the branch pipe are welded at their end faces by electron-beam welding, and the outer structural envelopes are welded by electron-arc welding using a split ring. The spacer is joined to the mixing head by automatic gas-shielded welding. The spherical casing of the gas generator is welded to the outlet branch pipe and the mixing head after the spacer is welded to the mixing head and the outlet branch pipe.

Method for producing a gas generator of welded-brazed construction

A combustion chamber for a liquid-propellant rocket engine includes an injector head jointed to a combustion chamber casing having an exhaust head on a nozzle output. The casing is made of a steel jacket and a bronze-steel internal fire wall, which are joined with each other and contain shells connected in series. The exhaust head with shells of the casing, jointed to the exhaust head, are brazed using a solder on the basis of nickel, chromium and manganese. Parts of the injector head and other members of the combustion chamber casing are brazed using a copper-silver solder. Shells of the fire wall are connected by an electron-beam welding, directing an electron beam into axial gaps left while brazing between shells of the jacket. The shells of the jacket are then sequentially connected by an automatic gas-shielded arc welding through corresponding ring spacers.

Method for producing a welded-brazed combustion chamber

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Khimki, Russia

Nikolai Kondratievich Dudkin