Electro-hydraulic proportional solenoid valve

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Electro-hydraulic proportional solenoid valve

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JIANG HAOBIN / GENG GUOQING / CHEN LONG / TANG BIN / LIU HAI / GONG XIAOQING / ZHOU ZELEI / ZHAO HUI

The invention provides an electro-hydraulic proportional solenoid valve. The valve comprises a valve core, an oil outlet valve sleeve, a guide sleeve, a magnetism isolating ring, a pole shoe and a coil, wherein the magnetism isolating ring is of a non-magnetic material; the two ends of the magnetism isolating ring are connected with the guide sleeve and the pole shoe respectively to form a sleeve; the coil is arranged on the outer side of the sleeve; the oil outlet valve sleeve is provided with at least one oil outlet hole; one end of the oil outlet valve sleeve is in interference fit with the guide sleeve; the outer circumferential surface of the end part at one end of the valve core is provided with at least one oil inlet wedged groove, and the end face is provided with a straight groove which is communicated with the oil inlet wedged groove; the valve core is positioned in the sleeve; the position of the oil inlet wedged groove corresponds to the position of the oil outlet hole and is not overlapped with the oil outlet hole; a pre-tightening screw is arranged in the pole shoe; a return spring is arranged between the pre-tightening screw and the valve core. The assist characteristic of an automobile steering system can be continuously changed with vehicle speed, so the assist effect is better; the valve has the advantages of compact structure, easiness in control and low cost.

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Document information

Title :

Electro-hydraulic proportional solenoid valve

Contributors:

JIANG HAOBIN (author) / GENG GUOQING (author) / CHEN LONG (author) / TANG BIN (author) / LIU HAI (author) / GONG XIAOQING (author) / ZHOU ZELEI (author) / ZHAO HUI (author)

Publication date :

2015-04-01

Type of media :

Patent

Type of material :

Electronic Resource

Language :

English

Classification :

IPC:

B62D MOTOR VEHICLES , Motorfahrzeuge