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Clamping Fixture For Pressure Test Of Duct Assy In Light Combat Aircraft

Abstract: Leak test /pressure test needs to be done for every pipe Assys /Ducts prior to installation on the Aircraft. Leak test is done for specified Pressure value given by design. High pressure test to be done with proper clamping fixtures to test the pipes/Ducts at required value level. This invention also provides the general input/ frame work to design the pressure test fixture for similar type of assemblies involved in Light combat aircraft.

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Notices, Deadlines & Correspondence

Patent Information

Application #
Filing Date
31 December 2014
Publication Number
26/2017
Publication Type
INA
Invention Field
ELECTRICAL
Status
Email
Parent Application

Applicants

HINDUSTAN AERONAUTICS LIMITED
SR.MANAGER(SM&WELD), LCA TEJAS DIVISION, POST BOX NO.3791,MARATHAHALLI POST, BANGALORE - 560 037

Inventors

1. SHRI. D.V.V.SOMASEKHAR
SR.MANAGER(SM&WELD), LCA TEJAS DIVISION, POST BOX NO.3791,MARATHAHALLI POST, BANGALORE - 560 037
2. SHRI. VINAY KUMAR PANDEY
SR.MANAGER(SM&WELD), LCA TEJAS DIVISION, POST BOX NO.3791,MARATHAHALLI POST, BANGALORE - 560 037
3. SHRI. SIDDARTH JOSHI
SR.MANAGER(SM&WELD), LCA TEJAS DIVISION, POST BOX NO.3791,MARATHAHALLI POST, BANGALORE - 560 037

Specification

DESCRIPTION

TECHNICAL FIELD

The invention describes the special fixture developed to arrest the opening of jet pump to facilitate the Pressure/Leak Test on Front Duct assembly of Light Combat Aircraft.

BACKGROUND OF INVENTION

Light Combat Aircraft has Front Duct assembly which requires leak/pressure test upto 15 bar before installing on aircraft. It was very difficult to arrest the opening at two places of jet pump due to the Accessibility constraint, high pressure involved and complex shape of Front Duct Assy.

SUMMARY OF INVENTION

Opening of Jet pump at two places are blocked by two specially designed fixtures to facilitate the Pressure/Leak test.

PROCESS DETAIL DESCRIPTION

Newly developed special fixture for easy clamping and facilitate Pressure/leak test as follows:

a) Two number Mild Steel rods milled internally (conical shape) at one end to insert inside the jet pump openings.

b) The Other end of Rod is fixed to 4mm thick circular Plate for clamping purpose.

c) Jet Pump openings will be clamped with this special fixture by providing rubber gasket in between to arrest the leak and facilitate the pressure test.

DRAWINGS

Fig.l: Special Clamping Fixture Fig.2: Front Out let Duct Assy

We claim that the design of Clamping Fixture for Pressure Test of Duct Assembly in Light Combat Aircraft

Documents

Application Documents

# Name Date
1 6839-CHE-2014 ABSTRACT 31-12-2014.pdf 2014-12-31
1 6839-CHE-2014 FORM-5 31-12-2014.pdf 2014-12-31
2 6839-CHE-2014 CLAIMS 31-12-2014.pdf 2014-12-31
2 6839-CHE-2014 FORM-3 31-12-2014.pdf 2014-12-31
3 6839-CHE-2014 CORRESPONDENCE OTHERS 31-12-2014.pdf 2014-12-31
3 6839-CHE-2014 FORM-2 31-12-2014.pdf 2014-12-31
4 6839-CHE-2014 DESCRIPTION (COMPLETE) 31-12-2014.pdf 2014-12-31
4 6839-CHE-2014 FORM-1 31-12-2014.pdf 2014-12-31
5 6839-CHE-2014 DRAWINGS 31-12-2014.pdf 2014-12-31
6 6839-CHE-2014 DESCRIPTION (COMPLETE) 31-12-2014.pdf 2014-12-31
6 6839-CHE-2014 FORM-1 31-12-2014.pdf 2014-12-31
7 6839-CHE-2014 CORRESPONDENCE OTHERS 31-12-2014.pdf 2014-12-31
7 6839-CHE-2014 FORM-2 31-12-2014.pdf 2014-12-31
8 6839-CHE-2014 CLAIMS 31-12-2014.pdf 2014-12-31
8 6839-CHE-2014 FORM-3 31-12-2014.pdf 2014-12-31
9 6839-CHE-2014 ABSTRACT 31-12-2014.pdf 2014-12-31
9 6839-CHE-2014 FORM-5 31-12-2014.pdf 2014-12-31