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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Применить Всего найдено 2. Отображено 2.
26-05-2023 дата публикации

Engine and control method thereof

Номер: CN116163847A
Автор: CHEN HONG, JIANG XIAOXIAO, WANG ZHICHAO, LI YUHUAI, DU JIAKUN, SUN FANJIA
Принадлежит:

The invention belongs to the field of internal combustion engines, and particularly relates to an engine and a control method thereof.The engine comprises an engine body assembly, a jet ignition device, a gas distribution assembly and an ammonia supply assembly, the engine body assembly comprises a main combustion chamber, and the jet ignition device is at least partially located in the main combustion chamber; the gas distribution assembly comprises an intake manifold, an exhaust manifold, an intake valve and an exhaust valve, the intake manifold is connected with the main combustion chamber through the intake valve, the exhaust manifold is connected with the main combustion chamber through the exhaust valve, and the ammonia supply assembly is connected with the intake manifold. Ammonia gas is injected into the gas inlet manifold through the ammonia supply assembly and then sucked into the main combustion chamber through the gas inlet valve to be combusted, the situation that combustion ...

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Номер записи: 1
12-05-2023 дата публикации

Membrane electrode and preparation method thereof

Номер: CN116111114A
Автор: CHEN HONG, DU JIAKUN, JIANG XIAOXIAO, LI MUWU, LI YUHUAI, SHAO FAKE, ZHAN WENFENG
Принадлежит:

The embodiment of the invention discloses a membrane electrode and a preparation method thereof. The preparation method comprises the following steps: covering the surface of a proton exchange membrane with catalyst slurry bearing different noble metal loading amounts to obtain a proton exchange membrane loaded with a catalyst layer; wherein in the proton exchange membrane loaded with the catalyst layer, the noble metal loading amount corresponding to the ridge position of the bipolar plate is greater than the noble metal loading amount corresponding to the groove position of the bipolar plate; and carrying out hot pressing on the proton exchange membrane loaded with the catalyst layer and carbon paper to prepare the membrane electrode. The noble metal in the catalyst is flexibly and efficiently utilized, so that the noble metal loading amount corresponding to the ridge position of the bipolar plate in the proton exchange membrane loaded with the catalyst layer is greater than the noble ...

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Номер записи: 2