Title:
AUXILIARY FUEL SUPPLY DEVICE OF CARBURETTOR
Document Type and Number:
Japanese Patent JPH01121557
Kind Code:
A
Abstract:
PURPOSE:To make proper increase of fuel easily in a wide rate-of-flow range with an aux. fuel supply device of a carburettor by opening and closing a fuel control valve and an air control valve according to the duty ratio. CONSTITUTION:Aux. fuel passage 5 is furnished with a fuel pump 6, pressure adjuster 7 on its discharge side, solenoid driven fuel control valve 8, and a jet 9 in the sequence as named. Downstream the jet 9 an air passage 10 is connected with this aux. fuel passage 5 and on the way equipped with a solenoid driven air control valve 11 and a jet 12. An electronic control circuit 13 receives input of parameters for the engine operating condition and emits appropriate drive signals. The fuel control valve 8 and air control valve 11 are opened and closed by drive signals consisting of pulse wave in specified duty ratio sent individually from the electronic control circuit 13.
Inventors:
SHINDO TAKAO
ISHIKAWA NORIKAZU
ASADA TETSUO
ISHIKAWA NORIKAZU
ASADA TETSUO
Application Number:
JP27792387A
Publication Date:
May 15, 1989
Filing Date:
November 02, 1987
Export Citation:
Assignee:
NIPPON CARBURETER
International Classes:
F02M1/10; F02M7/12; F02M7/24; (IPC1-7): F02M1/10; F02M7/12; F02M7/24
Attorney, Agent or Firm:
Nozawa Mutsumi
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