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Micro-Newton jewel-based double-air-capacity variable-thrust closed-loop cold air thruster and operation method thereof

A technology of cold air thrust and variable thrust, which is applied in the direction of aerospace vehicle propulsion system devices, etc. It can solve the problems of difficulty in maintaining stable thrust output and insufficient control of thrust precision, achieve continuous thrust output accuracy and stability, and overcome thermal expansion and cooling The effect of shrinking influence and reducing thrust noise

Active Publication Date: 2022-05-10
HANGZHOU INST FOR ADVANCED STUDY UCAS
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AI Technical Summary

Problems solved by technology

[0015] The first purpose of the present invention is to provide a microbull-level jewel-based dual-air volume variable thrust closed-loop air-conditioning thruster for the problems of insufficient thrust precision control and difficulty in maintaining stable thrust output in the prior art

Method used

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  • Micro-Newton jewel-based double-air-capacity variable-thrust closed-loop cold air thruster and operation method thereof

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Embodiment 1

[0065] Such as figure 1As shown in the present invention, there is a shallow groove on the contact surface between the shell 3 and the main body 1 of the Laval nozzle, and the outlet temperature sensor 2 is placed in the groove, Monitor the outlet temperature of the front end, and fix it on the shell 3 by means of adhesion. The main body 1 of the Laval nozzle is hollow inside, the rear end is double-arc contracted, and the front end is tapered to expand, which is a Laval nozzle structure. The valve seat sealing ring 5 is located in the groove at the front end of the soft magnetic material housing 17 and at the rear end of the sapphire nozzle seat, so as to ensure the sealing between the Laval nozzle main body 1 and the soft magnetic material housing 17 . The temperature control module 8 is wound in the coil bobbin outside the front end of the soft magnetic material shell 17, and the other side is limited by the shell 3 in the shell 3 to prevent falling off, and is used to con...

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Abstract

The invention provides a micro-Newton jewel-based double-air-capacitor variable-thrust closed-loop cold air thruster and an operation method thereof. A working medium gas inlet, a first-stage air capacitor, a connecting channel, a second-stage air capacitor and a working medium gas outlet are sequentially arranged in a soft magnetic material shell, and the working medium gas outlet is provided with a Laval nozzle main body; the Laval nozzle body is provided with a valve assembly at the narrow-throat working medium inlet, the valve assembly comprises a valve and a restoring elastic element, the restoring force of the restoring elastic element controls the working medium gas inlet to be communicated or sealed, and the restoring force of the restoring elastic element synchronously controls the valve assembly to communicate or seal the connecting channel and the Laval nozzle body; a driving electromagnetic coil is arranged on the outer wall of the soft magnetic material shell to drive the valve assembly to move in different directions, and meanwhile the sealing force of the valve is controlled through the elastic force of the recovery elastic element. According to the micro-Newton-level gemstone-based double-air-capacity variable-thrust closed-loop cold air thruster and the operation method thereof, continuous precision control and continuous stable output of thrust are achieved.

Description

technical field [0001] The invention relates to the field of propellers in precision machinery and aerospace propulsion technology, in particular to a microbull-grade jewel-based dual-gas-capacity variable-thrust closed-loop cold-air thruster and its operating method. Background technique [0002] The propeller is an important power device in aerospace technology. When working, it ejects the working substance out of the nozzle at a high speed, and provides a driving force for the propeller and its carrier through the recoil of the ejected matter. According to the working principle, the propulsion systems applied in space are divided into cold air propulsion, chemical propulsion and electric propulsion. For short-term use, when the total impulse required for satellite control is small, the effective specific impulse of the cold air propulsion system is greater than that of the electric propulsion. For microsatellites, the propulsion system is mainly used for satellite orbit ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64G1/40
CPCB64G1/40
Inventor 卢世旭周艳波龙建飞王晨郭宁徐禄祥
Owner HANGZHOU INST FOR ADVANCED STUDY UCAS
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