CN-115614126-B - Electromagnetic control valve for diesel engine lubrication system

CN115614126BCN 115614126 BCN115614126 BCN 115614126BCN-115614126-B

Abstract

The invention discloses an electromagnetic control valve for a lubricating system of a diesel engine, which relates to the field of electromagnetic valves, and has the advantages that the structure is simple, the front end of a valve sleeve is provided with an oil discharge port through adjusting the matching relation among the structures of the electromagnetic control valve, two annular grooves are arranged on the periphery side, a first oil outlet and a second oil outlet are formed at the second annular groove, meanwhile, the sizes of the two oil outlets are adjusted, so that the oil quantity discharged by an oil pump adjusting cavity through the second oil outlet is larger than the oil quantity discharged by the oil inlet through the first oil outlet into the oil pump adjusting cavity.

Inventors

YIN WEI
WU ZHANGJIN
ZHU XINLONG
ZHANG XI
DING HAITAO
LI BINBIN
JI XINMING

Assignees

安徽环名精控有限公司

Dates

Publication Date: 20260505
Application Date: 20221108

Claims (6)

1. The electromagnetic control valve for the diesel engine lubrication system is characterized by comprising a valve sleeve part and a coil part, wherein the valve sleeve part comprises a valve sleeve and a valve core which is arranged in the valve sleeve and can axially slide along the valve sleeve, two flanges are formed on the outer surface of the valve core, the diameter of the flange on the side close to the coil part is smaller than that of the flange on the side far away from the coil part, the shape of the flange on the inner wall of the valve sleeve is matched with that of the flange on the outer surface of the valve core; The valve sleeve is columnar hollow, a first annular groove and a second annular groove are formed in the outer surface of the valve sleeve, an oil inlet communicated with the hollow cavity is formed in the first annular groove, a first oil outlet communicated with the oil inlet is formed in the second annular groove, an oil drain port is formed in the front end of the valve sleeve, and a second oil outlet communicated with the oil drain port is formed in the surface of one side, close to the oil drain port, of the valve sleeve; The coil part sequentially comprises a shell, a coil arranged in the shell, an inner cover arranged in the coil, a plunger arranged in the inner cover and a gasket for limiting the plunger, wherein the plunger is fixedly connected with the thimble; The radial cross section shape of the second oil outlet is U-shaped, the oil outlet amount of the second oil outlet is larger than that of the first oil outlet, and the oil amount discharged from the oil discharge port through the second oil outlet by the oil pump adjusting cavity is larger than that of the lubricating oil flowing to the oil pump adjusting cavity through the first oil outlet by the main oil duct through the electromagnetic oil inlet.
2. An electromagnetic control valve for a diesel engine lubrication system according to claim 1, wherein the inner diameter of the valve sleeve on the side closer to the coil portion is smaller than the inner diameter on the side farther from the coil portion, and the inner diameter of the valve sleeve matches the outer diameter of the valve element.
3. An electromagnetic control valve for a diesel engine lubrication system according to claim 1, wherein the valve sleeve is fixedly connected with a filter screen at both the first and second ring grooves.
4. An electromagnetic control valve for a lubrication system of a diesel engine according to claim 1, wherein a front yoke is provided between the plunger and the valve core, a rear yoke is provided at an end of the coil remote from the front yoke, and a bracket is provided at a lower portion of the coil.
5. An electromagnetic control valve for a diesel engine lubrication system according to claim 4, wherein the valve housing and the outside of the front yoke are provided with sealing rings.
6. The electromagnetic control valve for a lubrication system of a diesel engine according to claim 4, wherein the coil includes a bobbin having a cylindrical shape and an enamel wire wound around the bobbin.

Description

Electromagnetic control valve for diesel engine lubrication system Technical Field The invention relates to the field of electromagnetic valves, in particular to an electromagnetic control valve for a diesel engine lubrication system. Background With the development of society, energy conservation and emission reduction are necessary trends, so the energy conservation and emission reduction demands of the engine as a driving system are becoming strong. In the prior art, the diesel engine needs lubricating oil to lubricate the structure of the diesel engine, however, in the actual use process, the electromagnetic control valve for adjusting the oil inlet and outlet quantity of the lubricating oil has low adjusting precision and low adjusting speed, and can not meet the requirements of the oil pump of the diesel engine on the lubricating oil under different working conditions of the engine. Disclosure of Invention The invention aims to provide an electromagnetic control valve for a diesel engine lubrication system, which solves the problems in the background art through the adaptive adjustment of the electromagnetic control valve structure and the size of an oil inlet and an oil outlet. In order to achieve the above purpose, the present invention provides the following technical solutions: An electromagnetic control valve for a diesel engine lubrication system comprises a valve sleeve part and a coil part, wherein the valve sleeve part comprises a valve sleeve and a valve core which is arranged in the valve sleeve and can axially slide along the valve sleeve, two flanges are formed on the outer surface of the valve core, the diameter of the flange on the side close to the coil part is smaller than that of the flange on the side far away from the coil part, and the shape of the inner wall of the valve sleeve is matched with that of the flange on the outer side of the valve core; the valve sleeve is columnar hollow, a first annular groove and a second annular groove are formed in the outer surface of the valve sleeve, an oil inlet communicated with the hollow cavity is formed in the first annular groove, a first oil outlet communicated with the oil inlet is formed in the second annular groove, and a second oil outlet communicated with the oil drain port is formed in the surface of one side, close to the oil drain port, of the valve sleeve; The coil part sequentially comprises a shell, a coil arranged in the shell, an inner cover arranged in the coil and a plunger arranged in the inner cover from outside to inside, and the plunger is fixedly connected with the thimble. As a further scheme of the invention, the inner diameter of the valve sleeve at the side close to the coil part is smaller than the inner diameter of the valve sleeve at the side far from the coil part, and the inner diameter of the valve sleeve is matched with the outer diameter of the valve core. As a further scheme of the invention, the radial cross section shape of the second oil outlet is U-shaped. As a further scheme of the invention, the oil outlet amount of the second oil outlet is larger than the oil outlet amount of the first oil outlet. As a further scheme of the invention, the valve sleeve is fixedly connected with a filter screen at the first annular groove and the second annular groove. As a further scheme of the invention, a front yoke is arranged between the plunger and the valve core, a rear yoke is arranged at one end of the coil, which is far away from the front yoke, and a bracket is arranged at the lower part of the coil. As a further scheme of the invention, sealing rings are arranged on the outer sides of the valve sleeve and the front yoke iron. As a further scheme of the invention, the coil comprises a framework and enameled wires wound on the framework, and the framework is cylindrical. Compared with the electromagnetic hydraulic control valve in the prior art, the electromagnetic control valve has the advantages that the electromagnetic control valve is novel in structure, the front end of the valve sleeve is provided with the oil discharge port, two annular grooves are circumferentially arranged, a first oil outlet and a second oil outlet are formed at the second annular groove, meanwhile, the sizes of the two oil outlets are adjusted, so that the oil quantity discharged by the oil pump adjusting cavity through the second oil outlet is larger than the oil quantity discharged by the oil inlet through the first oil outlet into the oil pump adjusting cavity, and compared with the electromagnetic hydraulic control valve in the prior art, the electromagnetic control valve is wide in hydraulic oil quantity adjusting range, high in precision and sensitive in response, and can be spontaneously opened under the action of oil pressure to adjust the oil pump oil quantity when the electromagnetic valve is in failure due to outage. Drawings FIG. 1 is a schematic axial sectional view of an electromagnetic hydraulic control valve; FIG