Method and apparatus for preforming exhaust gas emission tests w

Details Method and apparatus for preforming exhaust gas emission tests w Method and apparatus for preforming exhaust gas emission tests w

1976-01-21

1976-12-28

Myracle, Jerry W.

Measuring and testing

Test stand

For engine

734215R, G01M 1500

Patent

active

039994252

ABSTRACT:
For determining the emission contents of the exhaust gases of a vehicle internal combustion engine the idling engine is disengaged from the vehicle's driving transmission and is, during a fixed period of time, subjected to a series of load variations by momentarily increased charges of fuel to the engine. A certain fraction of the exhaust gas quantity generated during the mentioned period of time is drained or directed to a gas sampling unit, and this gas fraction is analyzed.

REFERENCES:
patent: 2583177 (1952-01-01), Hoekstra
patent: 3406562 (1968-10-01), Perna, Jr. et al.
patent: 3603155 (1971-09-01), Morris et al.
patent: 3610047 (1971-10-01), List et al.
patent: 3712126 (1973-01-01), Campbell
patent: 3713332 (1973-01-01), Herrbrich
patent: 3846076 (1974-11-01), Henault
patent: 3864964 (1975-02-01), Voelz

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