Ignition advance device for internal-combustion engine

Abstract

Abstract PURPOSE:To secure the amount of revolution of an advance lever by permitting a throttle valve to be opened only by the revolution of a throttle lever even after the advance lever completes the revolution corresponding to the total advance width. CONSTITUTION:After an advance lever 41 completes the revolution corresponding to the total advance width within the restricted revolution range of a throttle lever 26, a throttle valve 36 can be opened only by the revolution of the throttle lever 26. In other words, the distance relation between each fulcrum of the throttle lever 26 and the advance lever 41 and an engagement piece 42 or an engagement cam 48 is determined so that the angle theta of revolution of the advance lever 41 in an equal time becomes larger than the angle theta1 of revolution of the throttle lever 26. Thus, the amount of revolution of the advance lever can be secured.

Inventors

• 👤 Toshiyuki Yamazaki
• 👤 俊之 山崎

Bibliographic Details