Why Gasoline 90% Distillation Temperature Affects Emissions with Port Fuel Injection and Premixed Charge General Motors Research Laboratories

Format:

Conference/Event

Author/Creator:

Quader, Ather A., author.

Conference Name:

International Fuels and Lubricants Meeting and Exposition (1991-10-07 : Toronto, Canada)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1991

Summary:

Statistically designed experiments were run in a single-cylinder engine to understand the reason for the decrease in exhaust mass HC emissions found in the Auto/Oil Program with decreasing 90% distillation temperature (T90) of gasoline. Besides T90, the effects of mixture preparation, equivalence ratio, and ambient temperature on emissions and fuel consumption were measured. HC emissions were higher with PFI than with premixed charge, but decreasing T90 decreased HC emissions with both premixed charge and PFI. Rich mixture and low ambient temperature increased HC emissions. Speciated exhaust HC measurements indicate that incomplete vaporization of heavy components of the gasoline (C8-C10 alkanes, C6-C9 aromatics and alkenes) was responsible for higher HC emissions

Notes:

Vendor supplied data

Publisher Number:

912430

Access Restriction:

Restricted for use by site license