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Middle-mounted valve for continuous variable valve timing system

A technology of valve timing and central valves, which is applied in the direction of valve devices, non-mechanically actuated valves, engine components, etc., can solve the problems of long length and complex structure, and achieve simple structure, reliable performance, and satisfy the internal oil circuit The effect of changing demand

Active Publication Date: 2016-07-20
JAPHL POWERTRAIN SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the center valve in the prior art, there are three oil discharge holes P, A and B on the surface of the valve sleeve (bolt) of the center valve, the structure is relatively complicated, and the length is relatively long

Method used

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  • Middle-mounted valve for continuous variable valve timing system
  • Middle-mounted valve for continuous variable valve timing system
  • Middle-mounted valve for continuous variable valve timing system

Examples

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Embodiment Construction

[0023] Below with reference to the accompanying drawings, through the description of the embodiments, the specific embodiments of the present invention, such as the shape, structure, mutual position and connection relationship between the various parts, the role and working principle of the various parts, etc., will be further described. Detailed instructions:

[0024] as attached figure 1 — attached Figure 5 As shown, the present invention is a central valve for a continuously variable valve timing system. The central valve for a continuously variable valve timing system includes a valve sleeve 1 with a hollow structure, and an oil inlet is provided at one end of the valve sleeve 1 3. The other end of the valve sleeve 1 is provided with an oil return port 4, the oil inlet 3 is connected with the high-pressure oil passage of the engine, and the oil return port 4 is connected with the fuel tank. The valve sleeve 1 is provided with a valve sleeve oil hole A6 and a valve sleeve...

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Abstract

The invention provides a middle-mounted valve for a continuous variable valve timing system applied to the technical field of continuous variable valve timing systems. An oil inlet (3) is formed in one end of a valve pocket (1) of the middle-mounted valve, an oil return opening (4) is formed in the other end of the valve pocket (1), valve pocket oil holes A (6) and valve pocket oil holes B (7) are formed in the valve pocket (1), a valve element (10) is inserted in the valve pocket (1), valve element oil holes A (8) and valve element oil holes B (9) are formed in the valve element (10), a valve element central hole (12) is formed in the center of the valve element (10), the valve element oil holes A (8) and the valve element oil holes B (9) respectively communicate with the valve element central hole (12), and the valve element (10) is a structure capable of moving along a valve pocket cavity (14). The middle-mounted valve for the continuous variable valve timing system is simple in structure and reliable in performance, oil lines in the middle-mounted valve can be changed conveniently and quickly, and requirements of the continuous variable valve timing system are met.

Description

technical field [0001] The invention belongs to the technical field of continuously variable valve timing systems, and more specifically relates to a central valve for a continuously variable valve timing system. Background technique [0002] The continuously variable valve timing system (VVT system) can provide the best valve timing under most operating conditions of the engine, and it better solves the problem of dynamic performance under high speed and low speed, heavy load and small load. Economical contradictions, while improving exhaust emissions to a certain extent. Therefore, VVT technology is widely used in new automobile engines. Compared with the non-central VVT system solution, the central VVT system solution can shorten the oil passage of the engine oil in the whole system, reduce the leakage of engine oil, effectively improve the response speed and control accuracy of the phase mechanism, and reduce the oil consumption . In the center valve in the prior art,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01L1/344F01L9/02
CPCF01L1/344F01L9/10
Inventor 甄子源丁万龙范礼李雪涛邵璠张国立王换斌许亮
Owner JAPHL POWERTRAIN SYST
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