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.
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
| # | 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 |