Novel hydrogen oxygen rocket engine system

Abstract

The invention discloses a novel hydrogen oxygen rocket engine system. The novel hydrogen oxygen rocket engine system comprises a hydrogen turbine pump, an oxygen turbine pump, an oxygen supplementingcombustor, an oxygen supplementing valve, an oxygen main valve, an oxygen turbine gas exhaust valve, a hydrogen main valve, a thrust chamber and a hydrogen turbine gas exhaust valve. The hydrogen turbine pump and the thrust chamber are connected through the hydrogen main valve and a pipeline, and the hydrogen turbine pump and the head of the thrust chamber are connected through the hydrogen turbine gas exhaust valve and a pipeline. The oxygen turbine pump and the head of the thrust chamber are connected through the oxygen main valve and a pipeline, and the oxygen turbine pump and one side of the oxygen supplementing combustor are connected through the oxygen supplementing valve and a pipeline. One end of the oxygen supplementing combustor and the oxygen turbine pump are connected through apipeline, and the other end of the oxygen supplementing combustor and the head of the thrust chamber are connected through the oxygen turbine gas exhaust valve and a pipeline. By the adoption of thenovel hydrogen oxygen rocket engine system, the engine system scheme is simplified, the overall performance of an engine can be conveniently improved, the complexity of the sealing design of the oxygen turbine pump is effectively reduced, the working reliability is improved, and the helium consumption is reduced.

Description

technical field [0001] The invention belongs to the technical field of rocket engines, in particular to a novel hydrogen-oxygen rocket engine system. Background technique [0002] The achievements of aerospace technology have brought great benefits to mankind. Disposable launch vehicles are still the most important means of transportation for humans to enter space, but the high launch costs hinder the rapid development of human space activities, reducing launch costs and reducing access to space. The expense has always been a human expectation. The reusable space-to-ground shuttle vehicle is an effective means to reduce the cost of space transportation, and it is an inevitable trend of future space development. [0003] Utilize the existing mature launch vehicle technology to develop a reusable first-stage vertical take-off and vertical landing partially reusable space-to-earth round-trip transportation system, adopting the configuration of "reusable first stage + upper sta...

AI Technical Summary

Problems solved by technology

At present, it is difficult to take into account all the above aspects in the liquid rocket engine circulation system that is mainly used. It is difficult to achieve large-scale variable thrust in the gas generator cycle and afterburning cycle scheme. At the same time, the thrust-to-weight ratio of the engine is insufficient, and there is room for further improvement in reliability.

The expansion cycle scheme is difficult to achieve higher combustion chamber pressure and engine thrust

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