|Table of Contents|

Characteristics of the multi-start,integrated propulsion system based on the differential pneumatic supercharger(PDF)

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]

Issue:
2022年01期
Page:
22-29
Research Field:
研究与设计
Publishing date:

Info

Title:
Characteristics of the multi-start,integrated propulsion system based on the differential pneumatic supercharger
Author(s):
ZHAO Xiaohui; ZHANG Jinrong; SHAN Lei; SUN Haiyu; WANG Xinglu
(Xi’an Aerospace Propulsion Institute,Xi’an 710100,China)
Keywords:
differential pneumatic supercharger;  multi-starting;  integration;  propulsion system
PACS:
V434.24
DOI:
-
Abstract:
The more weight and space for the whole flight mission will be economized by use of the dynamical power system of upper stage with the characters of high performance,light weight,small size,while the weight and scale of other payloads will be increased. The turbopump-feed dynamical system integrated with the orbit and attitude control is composed of the main engine,engines for attitude control,and the integration assemblies. The system-level test results of the dynamical power system show that:firstly,it can be realized that the integrated supply of the propellant to the attitude control engines and the main engine through sharing the main tank; secondly,the main engine should be multi-started more than 20 times by use of a pneumatic supercharger to pressurize the propellant for the generator; finally, the time spending on start-up acceleration(T90)can be reduced to less than 3 s. That the high integration of the propulsion system of the upper stage can be realized and the overall performance can be improved by use of this integrated system technology.

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