High Speed Knock in S.I. Engines Petroleum Products Laboratories, div., Snam Progetti (Italy), S. Sirtori, Alfa Romeo (Italy)

Format:

Conference/Event

Author/Creator:

Arrigoni, V., author.

Conference Name:

International Automobile Engineering and Manufacturing Meeting (1974-10-21 : Toronto, Canada)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1974

Summary:

The importance of minimizing fuel consumption has necessitated the study of knock which drastically limits the attainment of high combustion efficiency in current s.i. engines. In the present work, four aspects of this phenomenon have been examined:It was found that the most severe knocking conditions were those met with by small displacement engines at a sufficiently high constant speed (4000-5000 rpm) and wide-open throttle.In these conditions, high knock intensities, much greater than the trace level, are needed to cause engine damage. Motor Octane Number is the most important parameter in controlling high-speed knock at all engine speeds, this was determined using the CFR engine under fuel stress conditions very similar to those present in commercial engines

Notes:

Vendor supplied data

Publisher Number:

741056

Access Restriction:

Restricted for use by site license