Exhaust gas management apparatus and method

Details Exhaust gas management apparatus and method Exhaust gas management apparatus and method

1997-02-03

1998-06-16

Tran, Hien

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Waste gas purifier

422169, 422170, 422177, 422179, 422180, 422176, 60284, 60285, 60288, 60289, 60297, B01D 5334, F01N 328

Patent

active

057665591

ABSTRACT:
An exhaust gas management apparatus including: an air flow directing body forming a bypass passage including an inlet end and an outlet end and defining a low pressure region between the inlet end and the outlet end having a first diameter less than second and third diameters of the inlet and outlet ends, respectively; a hydrocarbon adsorber mounted radially exterior of the air flow directing body; an air source located downstream in an exhaust flow path of the low pressure region of the air flow body; and an air pump forcing air through the air source wherein, during activation of the pump, the bypass passage is valved shut at the low pressure region, wherein less air is required to valve shut the bypass passage than would be required at another location within the bypass passage.

REFERENCES:
patent: 3662540 (1972-05-01), Murphey
patent: 4886711 (1989-12-01), Foldvary
patent: 5315824 (1994-05-01), Takeshima
patent: 5525308 (1996-06-01), Oser
In-Line Hydrocarbon Absirber System for ULEV, M. D. Patil, W. Hertl, J. W. Williams & J. N. Nagel; SAE Technical Paper Series #960348, Feb. 26-29, 1996.

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