An embedded composite metal wire end-burning charge

A composite metal and metal wire technology, which is applied in jet propulsion devices, rocket engine devices, machines/engines, etc., can solve the problems of low production efficiency, unfavorable production organization, and single wire specifications, so as to improve production efficiency and reliability , the effect of meeting flexible needs

Active Publication Date: 2020-07-14
北京灵动飞天动力科技有限公司
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AI Technical Summary

Problems solved by technology

Wire-embedded end-burning charges greatly improve the design flexibility of end-burning charges, but the wire specifications in a single end-burning charge column are single. To achieve different burning rates, multiple propellants can only be cast in series. , achieved by the difference in the basic burning rate of the propellant, the low production efficiency is not conducive to the production organization

Method used

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  • An embedded composite metal wire end-burning charge
  • An embedded composite metal wire end-burning charge
  • An embedded composite metal wire end-burning charge

Examples

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Embodiment Construction

[0018] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0019] Traditional three-thrust end-fired powder embedded with metal wire such as figure 2 As shown, it is composed of a covering sleeve 1, a take-off grain 21, an endurance grain 22, an acceleration grain 23, a take-off silver wire 31 and an acceleration silver wire 33. Among them, the take-off grain 21, the endurance grain 22, and the acceleration grain 23 have the same diameter and the same propellant formula, all of which are three-component hydroxybutylene propellants with a basic burning rate of 25mm / s (6.86MPa). The left end of the take-off grain 21 The surface is bonded to the right end surface of the endurance grain column 22, the left end surface of the endurance grain column 22 and the right end surface of the acceleration grain column 23, and all contact surfaces between the three and the covering sleeve 1 are bonded and fixed. The take-off p...

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Abstract

The invention discloses an embedded combined metal wire end-burning propellant. The embedded combined metal wire end-burning propellant comprises a cladding sleeve, a propellant grain, take-off metalwires, fixed connection wires and speed-up metal wires; the cladding sleeve is glued to the outside of the propellant grain; the take-off metal wires, the fixed connection wires and the speed-up metalwires are connected in sequence to form combined metal wires; and the combined metal wires are uniformly distributed in the propellant grain circumferentially with the axis of the propellant grain asthe center, and the end-burning propellant is formed. By means of the embedded combined metal wire end-burning propellant, the purpose that the different burning speeds are achieved at different speed-up multiples of the same type of propellant can be achieved.

Description

technical field [0001] The invention relates to the technical field of solid rocket motors, in particular to an embedded composite metal wire end-burning charge. Background technique [0002] End-burning charge is a charge form of solid rocket motor, which has the advantages of thick flesh, long working time, and high filling coefficient. Achieve high thrust. The wire-embedded end-fired charge solves this problem, which includes a coating sleeve 1 , a charge column 2 and a wire 3 . Among them, the covering sleeve 1 is bonded to the grain column 2, and the metal wire 3 runs through the grain column 2 in the axial direction, and the number of wires varies according to the design requirements, such as figure 1 (a), figure 1 As shown in (b), take six wires as an example for illustration, the six metal wires are evenly distributed in the circumferential direction, and the diameter of the distribution circle is the diameter of the grain column 2 When the propellant burns, the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02K9/12
CPCF02K9/12
Inventor 王君祺吴刚熊飞
Owner 北京灵动飞天动力科技有限公司
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