Optimization of Multi-Valve Four Cycle Engine Design-The Benefit of Five-Valve Technology Yamaha Motor Company, Limited

Format:

Book

Conference/Event

Author/Creator:

Aoi, Kazuo, author.

Conference Name:

SAE International Congress & Exposition (1986-02-24 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 1986

Summary:

THE MULTI-VALVE FOUR STROKE CYCLE engine design trend is Coward increased engine power and higher fuel efficiency. While a four-valve system is the most common direction, problems occur when the valve area is widened by increasing the cylinder bore for a higher engine output. The layout of four larger valves causes the combustion chamber shape to flatten and the combustion time period to increase.In pursuit of the optimum multi-valve engine we have studied four, five, six and seven-valve per cylinder design. Performance targets and design constraints led us toward the successful five-valve engine technology. This technology develops high engine torque and efficient combustion over a wide range of engine speeds

Notes:

Vendor supplied data

Publisher Number:

860032

Access Restriction:

Restricted for use by site license