Mixture regulating device in carburettor

Abstract

Abstract PURPOSE:To permit stable idling revolution by a method wherein two pieces of cams, fixed to the output shaft of a motor or the same of a reduction gear therefor are provided to control the opening degrees of the choke valve and the throttle valve of the carburettor. CONSTITUTION:First rotary cam means C1, engaging with followers 61, 62 and pivoting a choke lever 6, and the second rotary cam means C2, engaging with the follower 12a and pivoting a cooperating lever 12, are arranged coaxially. The first rotary cam means C1 is consisting of a preceding cam plate 16 and a following cam plate 17 while the second rotary cam means C2 is consisting of one piece of the cam plate 18. Three pieces cam plates 16-18 are secured to the rotor shaft 21 of a stepping motor M. The motor M is connected with an electronic type control circuit 22, impressing a normally rotating pulse or a reversely rotating pulse to the motor M in accordance with input signals 121-123. A deviation from the set value of the revolving number of the engine is read out of a memory directly to control the revolving number of the idling.

Inventors

• 👤 Toshio Nomura
• 👤 俊夫 野村
• 👤 Yasuhiro Imai
• 👤 今井　靖博
• 👤 Tomio Aoi
• 👤 青井　富男
• 👤 Tetsuo Nakajima
• 👤 哲夫 中島
• 👤 Hiroshi Irino
• 👤 入野　博史

Bibliographic Details