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Motor vehicle

A technology for motor vehicles and engines, applied in the direction of machines/engines, mechanical equipment, engine components, etc., to reduce noise, increase low-speed torque, and reduce fuel consumption

Inactive Publication Date: 2017-07-14
NANAN FENGZHOU GAOJIE MOTORCYCLE ENERGY SAVING PRACTICAL TECH PROD SALES CENT
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0006] The invention proposes a valve adjustment system and method, which solves the problem of the same valve spring pressure at different engine speeds in the prior art

Method used

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Embodiment Construction

[0052] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0053] A method for controlling an engine valve spring, comprising: adjusting pressure to the valve inner spring 400 based on engine speed, adjusting the pressure of the valve inner spring 400 including adjusting an electrical control coupled to a lifter 700 . The valve inner spring 400 is a spring that is sleeved in an outer spring among the two return springs of the valve 200 .

[0054] Among them, such as figure 1 As shown, the valve inner spring 400 is sleeved...

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Abstract

The invention proposes a motor vehicle, comprising: an engine, and a cylinder head installed on the engine, one end of the valve spring withstands the pressure plate of the valve spring, and the other end withstands the lifting seat, and the lifting seat is installed on the cylinder head. On the valve seat; there is a balance weight and at least one lifter inside the lifting seat. Wherein, adjusting the pressure of the inner spring of the valve includes adjusting the electric control connected with the lifter. Includes electrical control that adjusts to the lifter based on engine speed. Adjust the pressure of the valve inner spring when the engine speed is high and adjust the pressure of the valve inner spring to be small when the engine speed is low. Realize increasing the pressure of the inner spring of the valve when the engine speed is high and reducing or canceling the pressure of the inner spring of the valve when the engine speed is low.

Description

technical field [0001] The invention relates to a gasoline engine, in particular to an adjustment method capable of changing the valve spring pressure according to the engine speed. Background technique [0002] The valve spring of the engine is the only part that guarantees the valve reset. If the valve spring force is too large, it will seriously damage the wear of the parts of the valve train. If the valve spring force is too small, the valve reset will lag behind, causing the valve and the power piston to collide. [0003] The return force of the valve spring is set according to the maximum speed of the engine to ensure the high-speed operation of the engine. However, the pressure of the valve spring at the highest speed is relatively large, which will inevitably affect the torque of the engine at low speeds. [0004] In order to achieve the reset speed of the valve in some high-speed engines, the valve spring adopts a double spring design, one inner spring and one outer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01L1/46
CPCF01L1/462
Inventor 庄景阳
Owner NANAN FENGZHOU GAOJIE MOTORCYCLE ENERGY SAVING PRACTICAL TECH PROD SALES CENT
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