New Four Valves Per Cylinder Basic Engine for Passenger Car

871177

11/08/1987

Event
4th International Pacific Conference on Automotive Engineering
Authors Abstract
Content
Through the experience in developing several 4-valve sporty engines, we have had an idea that 4-valve technology regarded as one of sporty engines may be applied to a standard engine of a passenger car. Making use of the superior characteristics of 4-valve technology, combustion chamber design and valve train system were completely refined for a standard engine. Higher torque in low to middle speed range and good fuel economy, important features in practical use, were pursued as the prior target of development. As a passenger car engine, comfortable sound in passenger compartment is an important feature as well as high performance and good fuel economy. With these concepts, we have developed the 3S-FE, 2-liter, 4-valve engine which has achieved 5.1& torque, 18.6% horse power and 9.7% Fuel consumption (highway mode) gains compared with the original 2S-E, 2-liter, 2-valve engine. A newly developed bending and torsional damper pulley to reduce the engine vibration, realized the quietness and comfort in passenger compartment.
This paper describes the concept of 4-valve technology in a standard engine and the details of the newly developed 3S-FE enigne with these concepts.
Meta TagsDetails
Pages
7
Citation
Sato, M., Konishi, M., Kamimura, S., Watanabe, H. et al., "New Four Valves Per Cylinder Basic Engine for Passenger Car," SAE Technical Paper 871177, 1987, .
Additional Details
Publisher
Published
Nov 8, 1987
Product Code
871177
Content Type
Technical Paper
Language
English