Engine oil system with oil pressure regulator, in order to the oil pressure for a cam phases one disc to the increase

摘要

A lubricating system for an internal combustion engine has a pressure regulator, in order to optimize by a motor oil flow rate and thus to increase an engine efficiency. The lubrication system comprises a motor-driven oil pump, which is connected in such a way that they are pressurized oil through a main oil supply to a main bearing by means of gear, a cam by means of gear and a hydraulically operated apparatus, such as, for example, a cam phases plate and the switching valve tappet, supplies. A pressure regulator, the between the main oil supply and the passages is connected, selectively a limited to the through passages oil flow rate, in order to the hydraulically actuated device of the oil pressure is supplied to increase. The increased oil pressure to the cam phases plate permits that the motor, a smaller oil pump can be used and, as a result, the engine efficiency is increased, while for an actuation of the cam phases dish over the entire engine speed range is ensured. The increased oil pressure to the switching stems permits that the motor, a valve stroke reduce or cylinder over the entire engine speed range can be disconnected.