초록 ▼

The present invention offers a valve driving apparatus provided in an internal combustion engine. The valve driving apparatus drives an exhaust valve by using electromagnetic force. The exhaust valve is movable between an open position and a closed position. The valve driving apparatus includes an a

The present invention offers a valve driving apparatus provided in an internal combustion engine. The valve driving apparatus drives an exhaust valve by using electromagnetic force. The exhaust valve is movable between an open position and a closed position. The valve driving apparatus includes an armature coupled with the exhaust valve, an electromagnetic coil for generating an electromagnetic force exerted on the exhaust valve, and a control means for controlling the electromagnetic force applied to the armature in the direction of the closed position of the exhaust valve when the exhaust valve is moving to the open position, in the fuel injection cut control, that is, combustion is suspended in the internal combustion engine. The present invention also offers a method for driving the exhaust valve, which comprises the steps of driving the electric current through the electromagnetic coil, biasing the armature and controlling the electromagnetic force applied to the armature.

대표청구항 ▼

[ What is claimed is:] [1.]1. A valve driving apparatus for driving an exhaust valve, using electromagnetic force, provided in an internal combustion engine, said exhaust valve being movable between an open position and a closed position, said valve driving apparatus comprising:an armature coupled w

[ What is claimed is:] [1.]1. A valve driving apparatus for driving an exhaust valve, using electromagnetic force, provided in an internal combustion engine, said exhaust valve being movable between an open position and a closed position, said valve driving apparatus comprising:an armature coupled with said exhaust valve;an electromagnetic coil for generating an electromagnetic force exerted on said armature;a valve spring for generating a force exerted on said exhaust valve; anda control means for controlling the electromagnetic force applied to said armature in the direction of the closed position of said exhaust valve when said exhaust valve is moving to the open position, in the case that combustion is suspended in the internal combustion engine.