An electromagnetic control valve for a lubricating system of a diesel engine

By adjusting the structure and outlet size of the electromagnetic control valve, the problems of low adjustment accuracy and slow speed in the existing technology have been solved, realizing a wide range of adjustment and high-precision control of lubricating oil quantity, and meeting the different operating conditions of diesel engines.

CN115614126BActive Publication Date: 2026-05-05ANHUI HUANMING FINE CONTROL
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Patent Information

Application Number
CN202211392792.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-11-08
Publication Date
2026-05-05
Estimated Expiration
2042-11-08

AI Technical Summary

Technical Problem

The electromagnetic control valves used in existing diesel engines to regulate the amount of lubricating oil entering and exiting the engine have low adjustment accuracy and slow speed, which cannot meet the needs of different operating conditions.

Method used

By adjusting the structure and inlet/outlet dimensions of the solenoid control valve, and designing the fit between the valve sleeve and valve core, an oil drain port is set at the front end of the valve sleeve, and two annular grooves are set around it to form the first and second oil outlets. The size of the oil outlet is adjusted to increase the flow rate of lubricating oil, and it automatically opens by oil pressure when the power is off.

Benefits of technology

It achieves extensive adjustment and high-precision control of lubricating oil quantity, is highly responsive, and can still open automatically when the solenoid valve is de-energized, meeting the lubrication needs of the engine under different operating conditions.

✦ Generated by Eureka AI based on patent content.
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Abstract

This invention discloses an electromagnetic control valve for a diesel engine lubrication system, relating to the field of electromagnetic valves. The invention features a simple structure. By adjusting the fit between the components of the electromagnetic control valve, an oil drain port is provided at the front end of the valve sleeve, and two annular grooves are provided on the circumference, forming a first oil outlet and a second oil outlet at the second annular groove. Simultaneously, the dimensions of the two oil outlets are adjusted so that the amount of lubricating oil discharged from the oil pump regulating chamber through the second oil outlet is greater than the amount of lubricating oil flowing into the oil pump regulating chamber from the oil inlet through the first oil outlet. Compared to existing electromagnetic hydraulic control valves, this invention offers a wider range of hydraulic oil quantity adjustment, higher precision, and more sensitive response. Even when the electromagnetic valve fails due to power loss, it can still automatically open under oil pressure to adjust the oil pump output.
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