Post calibration catalytic converter canning apparatus and method
AssigneeTenneco Automotive Operating Company Inc.
InventorScott M. Martin
Life of this patent
Estimating the term…
Abstract
A method and apparatus for assembling an exhaust treatment device such as a catalytic converter employs post calibration to achieve a desired bulk gap density of a support mat surrounding a substrate in the device housing. The mat is gauged under pressure to a thickness yielding the target bulk gap density and the pressure is saved for use in comprising the device housing against the mat after soft stuffing of the mat/substrate subassembly into the housing.
Claims3
Apparatus for applying uniform radially inwardly directed pressure on a compressible support mat surrounding a substrate for an exhaust treatment device, the apparatus comprising:
- a plurality of interface pads defining a space adapted for receipt of the support mat and substrate;
- each pad associated with a pressure measuring load cell and movable radially inwardly against the support mat, wherein each interface pad is coupled to a support frame via a leaf spring.
Dependencies are inferred from the claim text.