Some Effects of Engine-Fuel Variables On Exhaust-Gas Hydrocarbon Content Research Laboratories Division, CMC

Format:

Conference/Event

Author/Creator:

Rounds, F. G., author.

Conference Name:

SAE Golden Anniversary Annual Meeting

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1955

Summary:

PROPER maintenance and engine design can do much to reduce exhaust-gas hydrocarbons, the authors say. This conclusion is based on mass spectrometer analyses of engine exhaust from 163 passenger cars, most of them customer-owned, and 8 public-transit coaches, operated at idle, part throttle, and simulated deceleration.Mixture ratio proved the most important engine-fuel variable affecting hydrocarbon losses at idle; thus the V-8 engine, idling best on a leaner mixture, has lowest hydrocarbon losses.Manifold vacuum had the most effect during simulated deceleration. Since this depends on engine speed, automatic transmissions and the new lower rear-axle ratios are helpful.None of the engine-fuel variables tested had any effect at part throttle. Type of fuel and engine type (gasoline, diesel, or LPC) showed no significant influence on hydrocarbon content throughout the tests.Discussion of this paper begins on pages 618

Notes:

Vendor supplied data

Publisher Number:

550280

Access Restriction:

Restricted for use by site license