Patent ID: 6679204
Filing Date: 2004-01-20
Classification: F01L

Abstract:
A valve driving apparatus of an internal combustion engine, comprising:a valve element functioning as an intake valve or an exhaust valve of the internal combustion engine; an electromagnetic actuator for driving the valve element; an actuator body having a plurality of electromagnetic actuators mounted thereto; and wiring provided in a groove which is formed in the actuator body for supplying electric power to each of the electromagnetic actuators, wherein the actuator body has a flow path for allowing a cooling medium to flow therethrough, and the wiring is provided near the flow path of the actuator body, the wiring is a bus bar having a plurality of bar-like conductive members and a synthetic resin body filling at least a clearance between walls of the groove and the wiring adjacent bar-like conductive members, the plurality of bar-like conductive members of the bus bar extends in a direction in which the electromagnetic actuators are arranged, and each bar-like conductive member has one end connected to a corresponding electromagnetic actuator and the other end connected to a central connector, a thickness of the body of the bus bar is reduced as the number of bar-like conductive members is reduced, and a clearance between the actuator body and the wiring mounted thereto is filled with a synthetic resin.