Integral variable valve timing system device
A valve timing and system device technology, applied in valve devices, engine components, machines/engines, etc., can solve problems such as poor control stability and accuracy, large space occupied by the overall structure, and loud rotor and stator noise, etc. Achieve fast response, save installation space, and apply to a wide range of models.
Pending Publication Date: 2018-03-06
浙江富杰德汽车系统有限公司
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Problems solved by technology
The variable valve timing system is generally composed of a phaser and an oil control valve, and the oil control valve is mainly used for precise control of the oil flow, so that the accurate control of the engine cam phase can be realized. In order to ensure the performance of the oil control valve, usually The reversing rod of the oil control valve and the inside of the valve body will be hardened and lubricated to prevent wear particles, especially metal or metal particles, from entering the electromagnetic drive, resulting in poor control stability and precision
[0003] In the prior art, the phaser and the oil control valve of the common variable valve timing system device have a separate structure, and a control oil circuit needs to be set between the oil control valve and the phaser to connect the two, not only the overall structure It takes up a lot of space, and this split structure requires time for oil pressure transmission, the response speed of the phaser is slow, and there is a lot of noise between the rotor and the stator in the existing phaser during work
Method used
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[0020] In the following, the variable valve timing system device of the present invention will be further explained in conjunction with specific embodiments to help those skilled in the art have a more complete, accurate and in-depth understanding of the inventive concept and technical scheme of the present invention.
[0021] The integrated variable valve timing system device of the present invention includes such Figure 1-2 The phaser 20 shown as well as Figure 3-4 The oil control valve 10 shown. Such as Figure 1-2 As shown, the phaser 20 includes a rotor 21 and a stator 22. A plurality of sealing convex walls 23 are evenly spaced on the inner side of the stator 22, and adjacent sealing convex walls 23 are arranged between the stator 22 and the rotor 21. An oil pressure chamber 24 is formed between the walls 23, and a plurality of oil pressure arms 25 are evenly spaced on the outer side of the rotor. The oil pressure arms 25 are located between two adjacent sealing convex wal...
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Abstract
The invention relates to an integral variable valve timing system device, and belongs to the technical field of vehicle VVT systems. In the integral variable valve timing system device, machine oil control valves are integrally arranged in an exhaust phase machine and an intake phase machine; multiple oil pressure arms are arranged on the outer sides of rotors at equal intervals; oil way holes areformed in two sides of the oil pressure arms, and are connected with opening oil way holes and return oil way holes of the machine oil control valves; mounting holes are formed in the middle parts ofthe rotors; the machine oil control valves are arranged in the mounting holes; and multiple opening oil way holes and return oil way holes are formed in the outer sides of the machine oil control valves. The device can solve the technical problems of split structure arrangement, large occupied space, low response speed and weak operation performance in the prior art. The device has the characteristics of compact structure, simple assembly and silent operation.
Description
Technical field [0001] The present invention relates to the technical field of automotive VVT systems, and more specifically, the present invention relates to an integrated variable valve timing system device. Background technique [0002] Variable valve timing system (VVT system) under specific engine conditions, by controlling the intake valve opening angle to advance and retard to adjust the intake and exhaust volume and timing and change the size of the valve overlap angle, to achieve increased intake Charge and efficiency, better organize intake vortex, adjust cylinder explosion pressure and residual exhaust gas volume, to obtain engine power, torque, emissions, fuel economy, comfort and other comprehensive performance improvements, so as to solve the traditional fixed valve phase The technical contradiction between each performance index of the engine restricts each other. The variable valve timing system is generally composed of a phaser and an oil control valve. The oi...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F01L1/344
CPCF01L1/3442
Inventor 王俊杰林钰
Owner 浙江富杰德汽车系统有限公司