Design and Development of a Variable Valve Timing (VVT) Camshaft Environmental Activities Staff, General Motors Corporation

Format:

Book

Conference/Event

Author/Creator:

Schiele, Carl A., author.

Conference Name:

1974 Automotive Engineering Congress and Exposition (1974-02-25 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 1974

Summary:

The development of a variable valve timing (VVT) camshaft was initiated as a potential means of controlling exhaust emissions from a spark ignition piston engine. This approach was based on the fact that valve overlap influences internal exhaust gas recirculation which in turn affects spark ignition engine emissions and performance. The design, fabrication, bench tests and engine durability tests of a unit incorporating splines to allow the intake cams to move relative to the exhaust cams is discussed. Preliminary test data from a 350 CID (5700 cm3) engine fitted with the VVT camshaft are discussed with regard to durability and emissions

Notes:

Vendor supplied data

Publisher Number:

740102

Access Restriction:

Restricted for use by site license