| 摘要 |
PURPOSE:To economize energy by adapting a car to be in touch with a road surface only by two wheels during running. CONSTITUTION:When a car starts running and obtains a speed capable to run only by two wheels front and rear, side wheel 3 and 4 are raised and separated from a road surface. This construction allows to reduce the friction to touch the road and economize fuel greatly. When the car running reduces its speed, side wheels 3 and 4 are brought in touch with the road before the car is unbalanced. |
