Center valve bush with cam shaft lubricating structure

Abstract

The invention discloses a center valve bush with a cam shaft lubricating structure. The center valve bush comprises a center valve bush body. A cam shaft joint is arranged on the end part of the center valve bush, a cam shaft executor is arranged in the center valve body, a center valve lubricating oil inlet and a center valve lubricating outlet are formed in the end part of the center valve body,the center valve lubricating oil inlet is formed in the periphery of the end part of the center valve bush body, the center valve lubricating oil outlet is formed in the end part of the center valvebush body, and the center valve lubricating oil inlet communicates to the center valve lubricating oil outlet. By forming a cam lubricating oil hole independently in the tail end of a conventional center valve bush body, the lubricating demand of the hollow cam shaft can be met, so that the service life of a machine is further prolonged and the using effect of the machine is further improved. Thecenter valve bush is reasonable in design and suitable for being popularized and applied.

Description

technical field [0001] The invention relates to the technical field of an automobile camshaft central valve sleeve, in particular to a central valve sleeve with a camshaft lubricating structure. Background technique [0002] The engine variable valve timing technology is one of the new technologies for energy saving and emission reduction of modern automobiles. It can increase the intake air charge, increase the charge coefficient, and make the combustion more complete, so that the torque and power of the engine can be further improved. The central oil control valve (referred to as the central valve) is the control element of the variable valve timing system, which is responsible for adjusting the direction and rotation angle of the actuator oil circuit. [0003] When the traditional mid-mounted central valve adjusts the phaser, in the process of oil circuit switching, the excess oil will flow out through the oil discharge port at the central end to lubricate the camshaft (n...

AI Technical Summary

Problems solved by technology

[0003] When the traditional mid-mounted central valve adjusts the phaser, in the process of oil circuit switching, the excess oil will flow out through the oil discharge port at the central end to lubricate the camshaft (non-hollow camshaft), because the oil discharge port flows out The low oil pressure of the engine cannot meet the lubrication requirements of the hollow camshaft

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