CN211117721U - A solenoid control valve with a cracking pressure engine piston cooling nozzle - Google Patents

Abstract

The utility model discloses an electromagnetic control valve with an engine piston cooling nozzle with an opening pressure, comprising an electromagnetic coil part and a valve body connected with the electromagnetic coil part; the electromagnetic coil part comprises a casing, and a coil arranged inside the casing, The yoke is arranged on the peripheral side of the coil and is used to form the magnetic circuit and the plunger is arranged on the inner side of the yoke; the inner side of the yoke is provided with an inner cover; the valve body includes a valve sleeve, and the side wall of the valve sleeve is provided with an oil inlet The valve sleeve is provided with a thimble, a valve core and a spring in sequence from top to bottom, and the valve core includes a first valve core and a second valve core that are independent of each other; the first valve core and the second valve core can be The inner extension axis of the valve sleeve reciprocates. The utility model designs the valve core into two independent structures, namely the first valve core and the second valve core, by transforming the valve core, so that the opening or closing of the oil outlet can be adjusted according to the pressure of the oil inlet. , adjust the working state, can avoid the waste of lubricating oil.

Description

A solenoid control valve with a cracking pressure engine piston cooling nozzle

technical field

The utility model relates to the technical field of engine electromagnetic control valves, in particular to an electromagnetic control valve with an engine piston cooling nozzle with an opening pressure.

Background technique

With the development of the automobile industry and the application of technologies such as supercharging and high compression ratio, the combustion temperature of the engine is getting higher and higher, and the ambient temperature of the piston is also getting higher and higher, which is prone to deflagration problems. Smoothness is bad. Since the engine piston cooling system is widely used in automobiles, it is of great significance to reduce piston wear, prolong piston life, and ensure smooth engine operation.

At present, the structure and function of the electromagnetic control valve of the engine piston cooling nozzle on the market are relatively simple, mainly the normally open valve. There will be lubricating oil flowing out of the port; in this way, when the pressure at the oil inlet is too small, it is difficult for the lubricating oil at the oil outlet to achieve the effect of piston cooling, resulting in a certain degree of waste.

SUMMARY OF THE INVENTION

In view of the deficiencies of the prior art, the purpose of the present invention is to provide an electromagnetic control valve with an engine piston cooling nozzle with an opening pressure. By designing the valve core as a first valve core and a second valve core independent of each other, the It can adjust the opening or closing of the oil outlet according to the pressure of the oil inlet, adjust the working state, and avoid the waste of lubricating oil.

To achieve the above object, the technical scheme adopted by the present utility model is:

An electromagnetic control valve with an engine piston cooling nozzle with cracking pressure, comprising an electromagnetic coil part and a valve body connected with the electromagnetic coil part; wherein:

The electromagnetic coil part includes a casing, a coil disposed inside the casing, a yoke disposed on the periphery of the coil, a yoke for forming a magnetic circuit, and a plunger disposed inside the yoke; the inside of the yoke is provided with inner cover;

The valve body includes a valve sleeve, the valve sleeve is a cylindrical hollow type, and its side wall is provided with an oil inlet and an oil outlet; the inside of the valve sleeve is sequentially provided with a thimble, a valve core and a spring, so The valve core includes a first valve core and a second valve core that are independent of each other. The longitudinal section of the second valve core is stepped, and includes an upper valve core body located above and a lower valve core body located below. The diameter of the valve core body is smaller than the diameter of the lower valve core body; the first valve core and the second valve core can reciprocate axially in the valve sleeve.

In a further solution, an L-shaped bracket is installed on the outside of the housing; the electromagnetic control valve can be installed on the engine through the L-shaped bracket.

In a further scheme, the lower end of the casing is connected to the upper end of the valve sleeve, a first sealing ring is arranged between the lower end of the casing and the upper end of the valve sleeve; a second sealing ring is arranged on the outside of the valve sleeve; the inner cover and the casing A third sealing ring is arranged therebetween.

In a further scheme, the valve sleeve is made of cast aluminum; the cast aluminum processing method is adopted to reduce the machining allowance, ensure the accuracy, and at the same time improve the efficiency and reduce the cost.

The beneficial effects of the present utility model are as follows:

(1) The utility model designs the valve core into two independent structures, namely the first valve core and the second valve core, by transforming the valve core; thus, the opening of the oil outlet can be adjusted according to the pressure of the oil inlet. Or close, adjust the working state, can avoid the waste of lubricating oil.

(2) The electromagnetic control valve used in the engine piston cooling system of the present invention has the advantages of simple structure, high precision, simple assembly process and good reliability.

(3) The valve sleeve adopts the cast aluminum processing method to reduce the machining allowance, ensure the accuracy, improve the efficiency and reduce the cost.

(4) The utility model adds an inner cover on the inner side of the yoke, which reduces the manufacturing precision of the yoke and reduces the cost.

Description of drawings

Fig. 1 is the structural schematic diagram of the electromagnetic control valve of the present utility model in the state of not being energized;

2 is a schematic structural diagram of the electromagnetic control valve of the present invention when the oil pressure of the oil inlet reaches the opening pressure;

FIG. 3 is a schematic structural diagram of the electromagnetic control valve of the present invention in an energized state;

Reference numerals: 1-housing, 2-coil, 3-yoke, 4-plunger, 5-inner cover, 6-valve sleeve, P-oil inlet, A-oil outlet, 7-thimble, 8 -spring, 9-first valve core, 101-upper valve core body, 102-lower valve core body, 11-L bracket, 12-first sealing ring, 13-second sealing ring, 14-third sealing ring .

Detailed ways

The present utility model will be further described below in conjunction with the embodiments. Obviously, the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "top", "bottom", "inner", "outer" and the like indicate the orientation or The positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation , so it cannot be understood as a limitation of the present invention. Terms such as "installation", "connection", "connection" and "fixing" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integral connection; it may be directly connected or through an intermediate connection. The medium is indirectly connected, which can be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

As shown in Fig. 1-3, an electromagnetic control valve with an engine piston cooling nozzle with cracking pressure includes a solenoid coil part and a valve body connected with the solenoid coil part; wherein:

The electromagnetic coil part includes a casing 1, a coil 2 arranged inside the casing 1, a yoke 3 arranged on the peripheral side of the coil 2, a yoke 3 for forming a magnetic circuit, and a plunger 4 arranged inside the yoke 3; The inner side of the yoke 3 is provided with an inner cover 5; in order to facilitate the installation of the electromagnetic control valve on the engine, an L-shaped bracket 11 is installed on the outside of the housing 1, and the electromagnetic control valve can be realized through the L-shaped bracket 11. installation.

The valve body includes a valve sleeve 6, the valve sleeve 6 is a cylindrical hollow type, and its side wall is provided with an oil inlet P and an oil outlet A; the inside of the valve sleeve 6 is sequentially provided with a thimble 7, The valve core and the spring 8, the valve core includes a first valve core 9 and a second valve core independent of each other, the longitudinal section of the second valve core is stepped, including the upper valve core body 101 located above and the bottom valve core body 101. The diameter of the upper valve core body 101 is smaller than that of the lower valve core body 102 ; the first valve core 9 and the second valve core can reciprocate axially in the valve sleeve 6 .

As a more preferred embodiment, the lower end of the housing 1 is connected to the upper end of the valve sleeve 6 , a first sealing ring 12 is arranged between the lower end of the housing 1 and the upper end of the valve sleeve 6 ; a second sealing ring 12 is arranged on the outside of the valve sleeve 6 Sealing ring 13 ; a third sealing ring 14 is arranged between the inner cover 5 and the casing 1 . The valve sleeve 6 is made of cast aluminum, and the cast aluminum processing method is adopted to reduce the machining allowance, improve the efficiency and reduce the cost while ensuring the accuracy.

The working principle of the utility model is as follows: the utility model designs the valve core into two independent structures, namely the first valve core 9 and the second valve core, by transforming the valve core; wherein the longitudinal section of the second valve core is a step. It includes an upper valve core body 101 located above and a lower valve core body 102 located below, and the diameter of the upper valve core body 101 is smaller than the diameter of the lower valve core body 102 . In the non-energized state (as shown in Figure 1): under the elastic force of the spring 8, the upper spool body 101 is located at the oil inlet P, and the lower spool body 102 is located at the oil outlet A. The diameter is smaller than the diameter of the lower spool body 102. At this time, the oil inlet P is opened, the oil outlet A is closed, and the device is in a state of no oil supply; when the oil pressure of the oil inlet P rises to a certain value, the oil pressure passes through the lower valve. The top surface of the core body 102 gives a downward force to the lower valve core body 102. At this time, the lower valve core body 102 compresses the spring 8 and moves downward, so that the oil inlet P and the oil outlet A are both in an open state, and the supply starts to be supplied. oil (as shown in Figure 2). When the engine temperature is low, the electromagnetic control valve is energized, at this time, the plunger 4 moves downward, driving the first spool 9 to move downward, thereby closing the oil inlet A and stopping the oil supply (as shown in Figure 3). The oil outlet A of the electromagnetic control valve will not open when the oil pressure of the engine lubrication system is too low; when the oil pressure of the lubrication system reaches a certain pressure, the oil outlet will automatically open under the action of the oil pressure and the spring, and start supplying the piston. Oil cooling. Therefore, the working state can be adjusted according to the pressure of the oil inlet, and the waste of lubricating oil can be avoided.

Claims (6)

1. An electromagnetic control valve of an engine piston cooling nozzle with opening pressure comprises an electromagnetic coil part and a valve body connected with the electromagnetic coil part; wherein:

the electromagnetic coil part comprises a shell, a coil arranged on the inner side of the shell, a yoke arranged on the periphery side of the coil and used for forming a magnetic circuit, and a plunger arranged on the inner side of the yoke; an inner cover is arranged on the inner side of the yoke iron;

the valve body comprises a valve sleeve, the valve sleeve is of a columnar hollow type, and the side wall of the valve sleeve is provided with an oil inlet and an oil outlet; the valve sleeve is internally provided with a thimble, a valve core and a spring from top to bottom in sequence, and is characterized in that: the valve core comprises a first valve core and a second valve core which are mutually independent, the longitudinal section of the second valve core is step-shaped and comprises an upper valve core body positioned above and a lower valve core body positioned below, and the diameter of the upper valve core body is smaller than that of the lower valve core body; the first and second spools are axially reciprocable within the housing.

2. The solenoid control valve of claim 1, wherein an L-shaped bracket is mounted to an exterior of said housing.

3. The solenoid control valve of claim 1, wherein: the lower end of the shell is connected with the upper end of the valve sleeve, and a first sealing ring is arranged between the lower end of the shell and the upper end of the valve sleeve.

4. The solenoid control valve of claim 1, wherein: and a second sealing ring is arranged on the outer side of the valve sleeve.

5. The solenoid control valve of claim 1, wherein: and a third sealing ring is arranged between the inner cover and the shell.

6. The solenoid control valve of claim 1, wherein: the valve sleeve is made of cast aluminum.

Images