A Comparative Study of Variable Camshaft Phasing and Port Throttling for Performance and Emissions Cosworth Engineering

Format:

Conference/Event

Author/Creator:

Duckworth, R. F., author.

Conference Name:

International Congress & Exposition (1996-02-26 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1996

Summary:

An experimental study has been performed to analyse and compare the effects on performance and emissions of two forms of Internal Exhaust Gas Recirculation (IEGR) systems. Variable valve event phasing, specifically increasing intake and exhaust event overlap, through control of the intake camshaft, has been used as an IEGR control mechanism and for increased full load performance. Port throttling in combination with long valve event overlap periods has been used to increase peak torque and power and when allied to a single upstream throttle, IEGR control has been demonstrated. Barrel throttles have been used for the port throttled variant and this type of port throttle is responsible for some of the benefits found

Notes:

Vendor supplied data

Publisher Number:

960580

Access Restriction:

Restricted for use by site license