Variation of Both Symmetric and Asymmetric Valve Events on a 4-Valve SI Engine and the Effects on Emissions and Fuel Economy Jaguar Cars Limited

Format:

Book

Conference/Event

Author/Creator:

Ghauri, Ahmar, author.

Conference Name:

SAE 2000 World Congress (2000-03-06 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2000

Summary:

Mechanisms exist to vary valve lift, duration and phasing either simultaneously or individually but it remains a challenge to find the optimum settings. An experimental investigation involving a statistical approach has been applied to a 4-litre, 90° vee-8, 4-valve engine in which intake valve lift, duration and phasing were chosen as variables along with exhaust valve phasing. The intake valves were operated symmetrically for the first phase of testing, but subsequently asymmetric operation was also investigated. The results indicated possible strategies that could be applied to reduce emissions

Notes:

Vendor supplied data

Publisher Number:

2000-01-1222

Access Restriction:

Restricted for use by site license