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Phaser oil control valve and control method thereof

An oil control valve and phaser technology, which is applied to machines/engines, valve devices, mechanical equipment, etc., can solve problems affecting the adjustment speed of the phaser, noise, leakage, etc., to reduce noise risks, avoid knocking noise, and improve The effect of adjusting the speed

Inactive Publication Date: 2016-04-13
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the currently commonly used OCV structure, when the engine is stopped, the oil inside the phaser has leaked out; when the engine starts up again, the oil pressure inside the phaser needs to be re-established, which will affect the adjustment speed of the phaser, and at the same time It also makes the rotor blades in the phaser hit the stator to generate noise

Method used

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  • Phaser oil control valve and control method thereof
  • Phaser oil control valve and control method thereof
  • Phaser oil control valve and control method thereof

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Embodiment Construction

[0028] The specific implementation manner of the present invention will be described in further detail below by describing the best embodiment with reference to the accompanying drawings.

[0029] Such as Figure 1-Figure 3 and Figure 5 As shown, this kind of phaser oil control valve includes a control valve body 4, a spool spring 5 and a spool 6 connected to the spool spring 5 are arranged inside the control valve body 4; one end of the control valve body 4 is connected to There is a solenoid head 9, which is provided with a push rod 7 connected with the valve core 6 and an electric drive 8 connected with the push rod 7; a check valve body 13 is extended from the other end of the control valve body 4, and the one-way A spring cage 3 is arranged in the valve body 13, and a check valve spring 2 is installed on the spring cage 3, and the check valve spring 2 is connected with a check valve steel ball 1; the check valve body 13 is provided with and controls The oil inlet P tha...

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Abstract

The invention discloses a phaser oil control valve and a control method thereof. The control valve comprises a control valve body. A valve element spring and a valve element connected with the valve element spring are arranged in the control valve body. One end of the control valve body is connected with an electromagnetic head, and a push rod connected with the valve element and an electric drive connected with the push rod are arranged in the electromagnetic head. The other end of the control valve body extends to form a one-way valve body. A spring holder is arranged in the one-way valve body and provided with a one-way valve spring, and the one-way valve spring is connected with a one-way valve steel ball. An oil inlet communicated with the control valve body is formed in the one-way valve body. When an engine is started, a phaser is full of oil, oil pressure in the phaser can be built fast, the adjusting speed of the phaser can be increased when the engine is started, the knocking noise between a rotor and a stator is avoided, and noise risks are reduced.

Description

technical field [0001] The invention relates to a control valve of a variable valve timing system, in particular to a phaser oil control valve and a control method thereof. Background technique [0002] The engine needs a larger valve overlap angle and intake valve closing angle at high speed and heavy load, and a smaller valve overlap angle and intake valve closing angle at low speed and small load to achieve power, economy and emission performance Optimization. Therefore, variable valve mechanism technology has been developed rapidly and is currently the most advanced engine technology. At present, the main mass-produced technology is variable valve timing technology, that is, VVT technology. The VVT ​​technology mainly drives the camshaft through the phaser, so that the camshaft turns through a certain angle to realize the variable phase. [0003] The OCV valve (Oil Control Valve) controls the direction of the oil circuit of the phaser, so that the rotor and stator in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01L1/344
CPCF01L1/3442F01L2001/3443F01L2800/01F01L2800/03F01L2810/04
Inventor 兰州
Owner CHERY AUTOMOBILE CO LTD
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