AN IMPROVED MOTORCYCLE ENGINE.
Application 580/CAL/2001 published 2005-10-28, filed 2001-10-09
The structure of this invention is that, a motorcycle engine that inspects loads based on the variations in the rotation of the crank. The engine moves the time and angle for ignition at the low-loading running forwards, and sets the air mixture concentration at the low-loading running to be higher than that at the frequent-operation running. Because the air mixture concentration at the low-loading running to be higher than that at the frequent-operation running, the operation at the low-speed and low-loading is steady, such that the measures of inspecting loads based on the variations in the rotation of the crank may be adopted, thereby reducing the engine cost and the fuel consumption at the frequent-operation period. (FIG.)3
Applicant
Yamaha Hatsudoki Kabushiki Kaisha.,
2500 Shingai, Iwata-Shi, Shizuoka-Ken, Japan.
Inventor
1. Isaka Yoshiharu 2. Honda Masahiro 3. Hirano Hiromi 4. Uchida Yoshiaki Filed U/S 5(2) before The Patents
International Info
Classification: F 02 P 5/15, F 20 B 1/00, B 26 K 11/00
Priority Information
P2000-333161 Japan. 2000-10-31