An integrally formed excretory channel with variable cross-section

A variable cross-section and channel technology, which is applied to the layout/installation of power units, power units on aircraft, elbows, etc., can solve the problems of weight reduction, optimization of space, low design, and reduction of inner pipe diameter, etc., to simplify the process, The effect of small deformation and reduced number of parts
CN110864176BActive Publication Date: 2021-10-15CHINA HELICOPTER RES & DEV INST
0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA HELICOPTER RES & DEV INST
Publication Date
2021-10-15

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention belongs to the field of helicopter structure design. The present invention provides an integrally formed discharge channel with variable cross-section. The cup body 7, conduit 8, filter screen 9 and protrusion 10 of the variable-section discharge channel are integrally formed by melting metal powder by laser, which simplifies the process and reduces the number of parts. Long-term work in the marine environment does not produce corrosion defects, and the overall deformation of the parts is small.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the field of helicopter structure design, and relates to an integrally formed discharge channel with variable cross-section. Background technique

[0002] A helicopter needs to design a drainage channel on the platform to discharge the residual oil generated by the engine, hydraulic device and other systems. The excretion channel is mainly composed of a cup body 1 , a conduit 2 and a filter screen 3 . At present, the excretion channel is often designed by welding, and the above parts are welded into one assembly. Among them, the filter screen is mainly processed and formed by sheet metal, the cup body is formed by sheet metal stamping or machined, the conduit is formed by pipe material, and the welds form welds 4 or solder spots 5 such as figure 1 and figure 2 as shown, figure 1 is the front view of the existing variable-section excretory channel, figure 2 It is a top view of the existing excretory channel with variable ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More