Oil circuit structure for quickly adjusting camshaft phaser

Abstract

The invention discloses an oil circuit structure for quickly adjusting a camshaft phaser. The oil circuit structure comprises a front cover plate, a rear cover plate, a stator and a rotor, wherein thestator is arranged between the front cover plate and the rear cover plate, and the rotor is arranged inside the stator. A stator locking pin hole is arranged in the stator, a locking pin seat is arranged in the stator locking pin hole, a locking pin sleeves the end portion of the locking pin seat, a locking pin spring is arranged between the locking pin and the locking pin seat, the rotor is provided with a rotor locking pin hole, and the locking pin is matched with the rotor locking pin hole. In the oil circuit structure for quickly adjusting the camshaft phaser, when the phaser is in a lagging state, engine oil already passes through a locking pin oil circuit to open the locking pin; and when adjustment to the advance state is required, the rotor rotates directly relative to the statorin the direction of a lagging cavity, so that the locking pin opening time is saved, and the phaser adjustment speed is greatly improved. The oil circuit structure is reasonable in design and suitablefor popularization and use.

Description

technical field [0001] The invention relates to the field of an oil passage structure of an automobile camshaft phaser, in particular to an oil passage structure for quick adjustment of a camshaft phaser. Background technique [0002] The engine variable valve timing system is one of the most important subsystems in contemporary automotive systems. It can adjust the ratio of air and gasoline in real time according to the working conditions of the engine, so as to make gasoline burn more fully, improve the energy conversion rate, and further increase the torque and power of the engine, so as to achieve the purpose of energy saving and emission reduction. The phaser is the actuator of the variable valve timing system. Its main function is to adjust the phase angle of the camshaft, and then adjust the opening and closing of the intake and exhaust valves. [0003] The traditional camshaft phaser adjusts the phase angle. When adjusting from the lagging state to the advancing sta...

AI Technical Summary

Problems solved by technology

[0003] The traditional camshaft phaser adjusts the phase angle. When adjusting from the lagging state to the advancing state, since the lock pin is originally in the locked state, it is necessary to open the lock pin through oil pressure before the rotor can rotate relative to the stator. process greatly increases the adjustment time of the phaser

Images