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A method for vertical recovery of the base stage of a launch vehicle using a swimming engine

A technology for launch vehicles and recovery methods, which is applied to machines/engines, rocket engine devices, mechanical equipment, etc., can solve problems such as difficulty, complex design, and inability to guarantee reliability, achieve wide application, avoid deep throttling, and achieve convenient effects

Active Publication Date: 2022-04-15
NO 63921 UNIT OF PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under the current technical conditions, deep throttling and multiple start-up modification of high-thrust rocket engines have the disadvantages of complex design, great difficulty, and unguaranteed reliability. Adaptive adaptation to meet power requirements in reusable launch vehicles

Method used

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  • A method for vertical recovery of the base stage of a launch vehicle using a swimming engine
  • A method for vertical recovery of the base stage of a launch vehicle using a swimming engine
  • A method for vertical recovery of the base stage of a launch vehicle using a swimming engine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] The basic stage of the launch vehicle is equipped with a main engine 1 and four swimming engines 2, in which liquid oxygen is used as the oxidant, and kerosene is used as the combustion agent; the main engine 1 is equipped with a main engine nozzle 11, and the thrust at sea level is 300 tons. Oxygen-enriched supplementary combustion cycle is adopted; each traveling engine 2 is equipped with a traveling engine nozzle 21, and the sea level thrust of each traveling engine 2 is 10 tons, and the diameter of the basic stage of the launch vehicle can be 3.35 meters. The structural mass (including the engine) is 20 tons; the layout of the main engine nozzle 11 and the swimming engine nozzle 21 is as follows: image 3 structure shown.

Embodiment 2

[0049] The basic stage of the launch vehicle is equipped with a main engine 1 and four swimming engines 2, in which liquid oxygen is used as the oxidant, and liquid hydrogen is used as the combustion agent; the main engine 1 is equipped with a main engine nozzle 11, and the thrust at sea level is 300 tons , using a supplementary combustion cycle; each traveling engine 2 is equipped with a traveling engine nozzle 21, the sea level thrust of each traveling engine 2 is 15 tons, the diameter of the basic stage of the launch vehicle can be 5 meters, and the structural quality of the basic stage is (including the engine) is 30 tons; the layout of the main engine nozzle 11 and the swimming engine nozzle 21 is as follows: image 3 structure shown.

Embodiment 3

[0051] The basic stage of the launch vehicle is equipped with a main engine 1 and six swimming engines 2, in which liquid oxygen is used as the oxidant, and kerosene is used as the combustion agent; the main engine 1 is equipped with a main engine nozzle 11, and the thrust at sea level is 300 tons. Oxygen-enriched supplementary combustion cycle is adopted; each traveling engine 2 is equipped with a traveling engine nozzle 21, the sea level thrust of each traveling engine 2 is 8 tons, the diameter of the base stage of the launch vehicle is 3.8 meters, and the structural quality of the base stage is (including the engine) is 25 tons; the layout of the main engine nozzle 11 and the swimming engine nozzle 21 is as follows: Figure 4 structure shown.

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Abstract

The invention discloses a method for vertically recovering the basic stage of a carrier rocket by using a swimming engine. The vertical recovery method comprises: providing the basic stage of the carrier rocket, and the basic stage of the carrier rocket is powered by a combined engine; Provide the main flight power, and the attitude control power is provided by the swimming engine; after the basic stage of the launch vehicle is separated, the main engine is shut down and enters and descends after flying to the highest point, and the swimming engine provides deceleration power; the basic stage of the launch vehicle enters In the dense atmosphere region, the swimming engine shuts down; when the base stage of the launch vehicle descends to a low altitude, the swimming engine starts to provide landing deceleration power. The above-mentioned vertical recovery method can vertically recover the basic stage of the launch vehicle, so as to realize the reuse of the basic stage of the launch vehicle, thereby improving utilization efficiency.

Description

technical field [0001] The invention belongs to the technical field of vehicles, and in particular relates to a method for vertically recovering the base stage of a carrier rocket using a swimming engine. Background technique [0002] The reuse of launch vehicles is an effective way to achieve low-cost access to space. Through sub-level controllable recovery, inspection and maintenance, and reuse to reduce launch costs and greatly improve the economy of launch vehicles, it has become an advanced direction for the development of launch vehicle technology. Therefore, the reuse of launch vehicles is the first choice for newly developed launch vehicles to carry out normal space launches. [0003] The vertical recovery technology of the basic stage of international mainstream launch vehicles adopts the parallel connection scheme of multiple identical engines. One engine is located in the center of the rocket body, and the other engines are arranged symmetrically around the center...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02K9/42F02K9/44F02K9/80F02K9/97
CPCF02K9/42F02K9/44F02K9/80F02K9/97
Inventor 周城宏程洪玮刘阳雍子豪谷建光刘鹰朱雄峰王一杉韩秋龙谭云涛
Owner NO 63921 UNIT OF PLA
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