Exhaust gas simulation system with dual path temperature...

Details Exhaust gas simulation system with dual path temperature... Exhaust gas simulation system with dual path temperature...

2007-03-30

2009-08-25

McCall, Eric S (Department: 2855)

Measuring and testing

Internal combustion engine or related engine system or...

Exhaust system

Reexamination Certificate

active

07578179

ABSTRACT:
A temperature control system and method for use with an exhaust flow simulation system. A typical exhaust flow simulator is a burner-based system, in which exhaust from a combustive burner is exhausted through an exhaust line. A temperature control section divides the exhaust from the burner line into two paths: a cool path and an uncooled (hot) path. The cool path uses a heat exchanger to cool the exhaust. The cool path also has a control valve that controls the relative portions of hot and cool exhaust, which are re-mixed downstream the valve into an exhaust line. Various embodiments have different configurations for the two paths.

REFERENCES:
patent: 6112575 (2000-09-01), Cocconi
patent: 6796165 (2004-09-01), Abdul-Khalek
patent: 7021130 (2006-04-01), Schmidt
patent: 2003/0079520 (2003-05-01), Ingalls, Jr. et al.
patent: 2004/0007056 (2004-01-01), Webb et al.
patent: 2004/0139785 (2004-07-01), Abdul-Khalek
patent: 2004/0226354 (2004-11-01), Schmidt
patent: 2006/0234174 (2006-10-01), Burrahm et al.

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