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Wide-range variable thrust two-generator parallel pump-fed type engine frame and preparation method thereof

A technology with variable thrust and a wide range, applied in the aerospace field, can solve the problems of good opening, large axial length and large axial size of the engine, and achieve good opening performance, satisfactory positioning accuracy, and strength margin big effect

Active Publication Date: 2015-08-26
NO 11 INST OF NO 6 ACADEMY OF CHINA AEROSPACE SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the pump-pressed liquid rocket engine racks in my country are rod-type racks, which have good openness but large axial dimensions, and due to the limitation of the installation position of the thrust chamber, the axial length of the engine is too large

Method used

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  • Wide-range variable thrust two-generator parallel pump-fed type engine frame and preparation method thereof
  • Wide-range variable thrust two-generator parallel pump-fed type engine frame and preparation method thereof
  • Wide-range variable thrust two-generator parallel pump-fed type engine frame and preparation method thereof

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Embodiment Construction

[0030] see Figure 1-7 A wide-range variable-thrust double-machine parallel pump engine frame, including a body frame 1 with a door-shaped symmetrical opening, load-bearing rods 2 respectively arranged at the lower ends of the four end corners of the body frame 1; each load-bearing rod 2 The end is provided with butt lugs 7; between each load-bearing rod 2 and the body frame 1 is also provided with an oblique strut 4; the load-bearing rod 2, the body frame 1, and the oblique strut 4 together form a triangular support structure; the body frame 1 Support rods 2 are respectively arranged between the load-bearing rods 2 on the left and right sides; the upper end of the front part of the body frame 1 is symmetrically provided with a turbo pump mounting support 6 for installing the engine turbo pump; the upper end of the rear part of the body frame 1 is symmetrically provided The regulator mounting support 5 for installing the regulator and the main valve; two through holes are symm...

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Abstract

The invention relates to a wide-range variable thrust two-generator parallel pump-fed type engine frame and a preparation method thereof. The wide-range variable thrust two-generator parallel pump-fed type engine frame comprises a portal-type frame body with symmetric openings, and bearing rods respectively arranged at the lower ends of four end corners of the frame body; a butted lug is arranged at the end of each bearing rod; an inclined supporting rod is arranged between each bearing rod and the frame body; each bearing rod, the frame body and the corresponding inclined supporting rod jointly form a triangular supporting structure; supporting rods are respectively arranged between the bearing rods on the left side of the frame body and between the bearing rods on the right side of the frame body; turbine pump mounting supporting seats for mounting of engine turbine pumps are symmetrically arranged at the upper end of the front part of the frame body; adjuster mounting supporting seats for mounting of adjusters and main valves are symmetrically arranged at the upper end of the rear part of the frame body. The wide-range variable thrust two-generator parallel pump-fed type engine frame obtained according to the preparation method is light in structural weight, large in strength margin, and good in open performance.

Description

technical field [0001] The invention belongs to the field of aerospace, and relates to a large-scale variable-thrust double-engine parallel pump-type engine frame and a preparation method, in particular to the frame structure, titanium alloy material rods and frames through welding protection and prescribed welding sequence, and post-welding heat treatment to remove Frame structure design and production technology for stress prevention deformation. Background technique [0002] The active power of the cruise propulsion system of a certain type of unmanned reconnaissance aircraft in near space is liquid rocket engine. Due to the limitation of space size and structural quality, it is necessary to design a frame with good opening performance, short axial dimension and light structural weight. At present, the frame of the pump-pressed liquid rocket engine in my country is mostly a rod-type frame, which has good openness but a large axial dimension, and due to the limitation of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64G1/40B23P15/00
Inventor 冯耀辉蒲光荣周塞塞张金容
Owner NO 11 INST OF NO 6 ACADEMY OF CHINA AEROSPACE SCI & TECH
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