Patent ID: 7237528
Filing Date: 2007-07-03
Classification: F02D

Abstract:
1. A multi-cylinder engine for driving a vehicle, comprising: a plurality of cylinders; and a multi-throttle valve device including a plurality of air-intake passages, each of which being configured to lead air to the respective cylinder, and a plurality of throttle valves, each of which being provided in a different air-intake passage, and being configured to open and close the respective air-intake passage; wherein at least one of the throttle valves is configured to be opened and closed independently of at least one of the other throttle valves, and wherein the at least one of the throttle valves is a cable-driven throttle valve which is cooperably coupled with a twist grip throttle control through a cable, and the at least one of the other throttle valves is a motor-driven throttle valve which is configured to be driven by a motor based on a control signal being given; wherein the twist grip throttle control is configured to be operable by an operator to change the at least one of the throttle valves; and wherein the motor-driven throttle valve is configured so that a throttle opening thereof is controlled to follow a throttle opening of the cable-driven throttle valve with a predetermined time delay.