Patent ID: 6796276
Filing Date: 2004-09-28
Classification: F01L

Abstract:
A line control arrangement for a continuously variable valve timing system of a vehicle, comprising:a valve timing controller generating a predetermined valve timing variable control signal according to an engine speed of the vehicle; and an oil controlling driver generating a rotational force in a predetermined direction according to the valve timing variable control signal received from the valve timing controller to form a corresponding advance line and a corresponding retard line, wherein the oil controlling driver comprises a housing including a plurality of oil passage holes, a motor mounted within the housing to one side of the housing, the motor generating the rotational force in a predetermined direction according to the valve timing variable control signal supplied from the valve timing controller. a rotating member mounted within the housing and rotating by the rotational force of the motor to vary the flow of oil passing through the oil passage holes, wherein the rotating member comprises an oil supply rotating shaft receiving the rotational force of the motor, the rotating shaft being cylindrically formed, a retard body section fixedly mounted to a predetermined position of the oil supply rotating shaft such that an outer circumference of the retard body section comes into close contact with an inner surface of the housing, rotation of the rotating member during retard control being such that the retard body section forms a retard drive circuit with the housing, and an advance body section fixedly mounted to the oil supply rotating shaft at a predetermined distance from the retard body section such that an outer circumference of the advance body section comes into close contact with the inner surface of the housing, rotation of the rotating member during advance control being such that the advance body section forms an advance drive circuit with the housing, wherein said advance body section defines a retard drain oil chamber configured and dimensioned at least partially circumferencially around said advance body with a predetermined inclination, and wherein said retard body section defines an advance drain oil chamber configured and dimensioned at least partially circumferencially around said retard body section with a predetermined inclination.