Throttle system for general-purpose engine
AssigneeHonda Giken Kogyo Kabushiki Kaisha
InventorsHayato Matsuda, Sei Watanabe
Life of this patent
Estimating the term…
Abstract
A throttle system for a general-purpose engine, having an actuator (motor) connected to a throttle valve to open or close it so as to regulate amount of intake air. An output transmission mechanism constituted as a link mechanism or a gear mechanism is provided between the actuator and the throttle valve to transmit an output of the actuator to the throttle value such that an output of the mechanism relative to the output of the actuator when the throttle valve is fully closed, is smaller than that when the throttle value is not fully closed. With this, the system can finely open and close the throttle valve when its opening is small and can open and close it at high speed when its opening is large, while preventing throttle valve seizing.
Claims9
A throttle system for a general-purpose engine, having an actuator connected to a throttle valve of the engine, the actuator being displaceable to open or close the throttle valve so as to regulate amount of intake air, comprising:
- an output transmission mechanism provided between the actuator and the throttle valve to transmit an output of the actuator to the throttle value such that an output of the mechanism relative to the output of the actuator when the throttle valve is closed is smaller than that when the throttle value is not closed.
Dependencies are inferred from the claim text.