Patent ID: 6691410
Filing Date: 2004-02-17
Classification: F28D,G01B,Y10T

Abstract:
A method of inspecting a geometry and dimensional accuracy of a circular recuperator core, said circular recuperator core defining an axis â€œAâ€ , a first end and a second end spaced apart a preestablished length, a preestablished inner diameter centered about said axis â€œAâ€ , a preestablished outside diameter centered about said axis â€œAâ€ , and said circular recuperator core having a donor inlet duct positioned at said first end and centered about said axis â€œAâ€  and a donor outlet duct positioned at said second end and centered about said axis â€œAâ€ ; said method of inspecting said geometry and dimensional accuracy of said circular recuperator core comprising the steps of:positioning said second end of said circular recuperator core on a base member; positioning a first gage within said inner diameter; monitoring said preestablished length for dimensional accuracy using a go, no-go configuration of said first gage; positioning an anvil member within said inner diameter of said circular recuperator core; centering said anvil member within said inner diameter and aligning an axis â€œSAâ€  of said anvil member to coincide with said axis â€œAâ€  of said circular recuperator core; monitoring said position and a concentricity of said donor inlet duct using a go, no-go configuration of a second gage; positioning said anvil member within a pair of â€œVâ€  blocks; monitoring said position and a concentricity of said donor outlet duct using a go, no-go configuration of a third gage; and monitoring said preestablished outside diameter for dimensional accuracy using a go, no-go configuration of a fourth gage.