Multi-stage regulation ventilation control electromagnetic valve

Abstract

The utility model belongs to the technical field of ventilation control solenoid valves, and provides a multistage adjustment ventilation control solenoid valve structure which comprises a valve core shell, a first pipe joint and a second pipe joint, the valve core shell is arranged above the first pipe joint, and the second pipe joint is arranged below the first pipe joint; wherein the side face of the first pipe joint is provided with a side face ventilation opening, the bottom of the first pipe joint is provided with N ventilation openings, an inner cavity of the second pipe joint is communicated with the N ventilation openings in the bottom of the first pipe joint, and the second pipe joint is further provided with a total ventilation opening communicated with the inner cavity of the second pipe joint and the outside. M valve elements are installed at the bottom of the valve element shell and extend into the first pipe connector, and the valve elements are matched with ventilation openings in the bottom of the first pipe connector. Wherein M is less than or equal to N. The three electromagnetic assemblies are arranged to control opening and closing of the three valve elements of different specifications respectively, multi-stage adjustment of ventilation flow in the flight process of an airplane is achieved, the multi-stage ventilation flow adjusting device is used for being matched with various flight working conditions of the airplane, and the working performance of a lubricating oil system is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of ventilation control solenoid valves, and relates to a ventilation solenoid valve, specifically a multi-stage adjustable ventilation control solenoid valve. Background Technology

[0002] Ventilation control solenoid valves are used in the ventilation subsystem of aircraft lubricating oil systems, primarily to facilitate the discharge of gases from the engine bearing cavity. Single-stage adjustable ventilation control solenoid valves can switch between free ventilation and throttling ventilation modes by controlling the opening and closing of the valve core. However, aircraft ventilation conditions are diverse. When ventilation demand is low, excessive ventilation will accelerate lubricating oil consumption and reduce engine bearing cavity pressure; conversely, when ventilation demand is high, insufficient ventilation will increase the gas content in the lubricating oil, easily leading to cavitation. Utility Model Content

[0003] To adapt to the needs of various ventilation conditions in aircraft and improve the performance of the lubricating oil system, this utility model proposes a multi-stage adjustable ventilation control solenoid valve structure. This structure sets up three different specifications of ventilation channels to match the ventilation flow requirements of the aircraft under various flight conditions, realizes multi-stage adjustment of ventilation flow during aircraft flight, and improves the performance of the lubricating oil system.

[0004] The technical solution of this utility model is as follows:

[0005] A multi-stage adjustable ventilation control solenoid valve structure includes a valve core housing, a first pipe connector, and a second pipe connector. The valve core housing is located above the first pipe connector, and the second pipe connector is located below the first pipe connector. The first pipe connector has a side vent and N vents at its bottom. The internal cavity of the second pipe connector communicates with the N vents at the bottom of the first pipe connector. The second pipe connector also has a main vent connecting its internal cavity to the outside. M valve cores are installed at the bottom of the valve core housing and extend into the first pipe connector, with the valve cores engaging with the vents at the bottom of the first pipe connector. M is less than or equal to N.

[0006] Furthermore, all valve cores are equipped with pressure equalization ring grooves.

[0007] Furthermore, M is 3, and the first pipe connector has different sizes of air vents corresponding to these 3 valve cores. The 3 valve cores also have different sizes, namely the large valve core, the medium valve core, and the small valve core.

[0008] Furthermore, if N is greater than 3, the first pipe connector does not correspond to the vent size of the three valve cores being the same.

[0009] Furthermore, the three valve cores of the valve core housing are arranged in a triangular shape, and the center position of the vent at the bottom of the first pipe joint is generally symmetrical about the center of the first pipe joint.

[0010] Furthermore, the top of the valve core housing is equipped with three electromagnetic components corresponding to the three valve cores. The three electromagnetic components are located in a heat dissipation housing above the valve core housing, and the heat dissipation housing is connected to a cooling connector on the outside.

[0011] Technical effects of this utility model:

[0012] A multi-stage adjustable ventilation control solenoid valve structure is provided. By setting three sets of electromagnetic components to control the opening and closing of three different valve cores, the multi-stage adjustment of ventilation flow during aircraft flight can be achieved to match various flight conditions of the aircraft and improve the working performance of the lubrication system. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of a multi-stage adjustable ventilation control solenoid valve according to the present invention;

[0015] Figure 2 This is a schematic diagram of an electromagnetic component and valve core structure according to this utility model;

[0016] Figure 3 This is a schematic diagram of an outlet pipe connector structure according to this utility model;

[0017] Figure 4 This is a schematic diagram of a valve core structure according to this utility model;

[0018] Figure 5 This is a schematic diagram of a valve core housing structure according to this utility model;

[0019] Among them, 1—cooling connector, 2—heat dissipation housing, 3—valve core housing, 4—outlet pipe connector, 5—inlet pipe connector, 6—connector, 7—electromagnetic assembly, 8—electromagnetic assembly, 9—electromagnetic assembly, 10—large valve core, 11—medium valve core, 12—small valve core. Detailed Implementation

[0020] This section describes embodiments of the present invention, used to explain and illustrate the technical solutions of the present invention. Unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0021] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating directions or positional relationships, are based on the orientation or positional relationships in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or device referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include more than one of those features. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integrated connection; they can refer to a mechanical connection or a point connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Example 1:

[0024] A multi-stage adjustable ventilation control solenoid valve structure includes a valve core housing 3, a first pipe connector 4, and a second pipe connector 5. The valve core housing 3 is located above the first pipe connector 4, and the second pipe connector 5 is located below the first pipe connector 4. The first pipe connector 4 has a side vent and N vents at its bottom. The internal cavity of the second pipe connector 5 communicates with the N vents at the bottom of the first pipe connector 4. The second pipe connector 5 also has a main vent connecting its internal cavity to the outside. M valve cores are installed at the bottom of the valve core housing 3 and extend into the first pipe connector 4, with the valve cores engaging with the vents at the bottom of the first pipe connector 4. M is less than or equal to N.

[0025] All valve cores are equipped with pressure equalization ring grooves.

[0026] M is 3. The first pipe connector 4 corresponds to the air vents of these 3 valve cores, which have different sizes. The 3 valve cores also have different sizes. The 3 valve cores are large valve core 10, medium valve core 11 and small valve core 12.

[0027] When N is greater than 3, the air vents of the first pipe connector 4 are not the same size as the three valve cores.

[0028] The three valve cores of the valve core housing 3 are arranged in a triangular shape, and the center of the vent at the bottom of the first pipe joint 4 is generally symmetrical about the center of the first pipe joint 4.

[0029] The top of the valve core housing 3 is equipped with 3 electromagnetic components corresponding to the 3 valve cores. The 3 electromagnetic components are all located in the heat dissipation housing 2 above the valve core housing 3. The heat dissipation housing 2 is connected to the cooling connector 1.

[0030] Example 2:

[0031] This invention provides a multi-stage adjustable ventilation control solenoid valve structure to achieve multi-stage adjustment of ventilation flow during aircraft flight, which can be used to match various flight conditions of the aircraft, and improve the working performance of the lubricating oil system while meeting ventilation requirements.

[0032] A multi-stage adjustable ventilation control solenoid valve structure includes a cooling connector 1, a heat dissipation housing 2, a valve core housing 3, an outlet pipe connector 4, an inlet pipe connector 5, a connector 6, electromagnetic components 7, 8, and 9, a large valve core 10, a medium valve core 11, and a small valve core 12. The cooling connector 1 is threaded to the heat dissipation housing 2; the valve core housing 3 is screwed to the heat dissipation housing 2; electromagnetic components 6, 7, and 8 are disposed inside the heat dissipation housing 2; the outlet pipe connector 4 is screwed to the valve core housing 3; the inlet pipe connector 5 is screwed to the outlet pipe connector 4; the heat dissipation housing 2 has cooling channels connecting the cooling chambers of the three electromagnetic components 6, 7, and 8; the valve core housing 3 has lubrication channels and oil inlet channels, respectively introducing hot lubricating oil into the interior of the valve core housing 3 and the ventilation chamber of the outlet pipe connector 4.

[0033] In one possible embodiment, the outlet pipe connector 4 has three identical vent holes; the outlet pipe connector 4 has three different vent channels.

[0034] In one possible embodiment, the large valve core 10, the medium valve core 11, and the small valve core 12 are provided with oil inlet holes to introduce lubricating oil into the ventilation cavity of the outlet pipe joint; the large valve core 10, the medium valve core 11, and the small valve core 12 are provided with pressure equalizing ring grooves to improve the centering of the valve core during movement and avoid jamming.

[0035] In one possible embodiment, the valve core housing 3 has a valve core movement fitting channel; the valve core housing 3 also has an annular countersunk hole for placing electromagnetic components 7, 8, and 9.

[0036] Firstly, by setting up three sets of electromagnetic components and three different specifications of valve cores, the ventilation flow rate can be adjusted in eight levels.

[0037] A cooling joint is installed to cool the three sets of solenoid valves by introducing low-temperature lubricating oil;

[0038] A lubrication channel is opened inside the valve core housing to introduce lubricating oil into the moving mating surface between the valve core and the valve core housing, thereby reducing friction;

[0039] An oil inlet hole is made on the valve core to guide the lubricating oil flowing into the valve core to the ventilation cavity of the outlet nozzle, preventing the lubricating oil from remaining inside the valve core and affecting the opening and closing of the valve core.

[0040] Example 3:

[0041] The system is equipped with three electromagnetic components and three types of valve cores. By controlling the opening and closing of the valve cores through the on and off states of the electromagnetic components, the ventilation flow can be adjusted in eight levels to match the ventilation flow requirements under different operating conditions during aircraft flight and improve the performance of the lubricating oil system.

[0042] Two cooling joints are installed on the heat sink housing to introduce low-temperature lubricating oil into the heat sink housing to cool the three electromagnetic components, thereby improving the continuous working time and working stability of the multi-stage regulating ventilation control solenoid valve.

[0043] Lubrication holes are made on the heat sink housing and the valve core housing. Lubricating oil enters the valve core housing from the heat sink housing to provide lubrication for the moving mating surfaces of the valve core and the valve core housing, reduce friction, and prevent the valve core from getting stuck during opening and closing.

[0044] An oil inlet hole is made on the valve core. The lubricating oil entering the valve core flows into the ventilation chamber of the outlet pipe joint through the oil inlet hole, and then flows into the inlet pipe joint through three exhaust holes. This prevents the lubricating oil from depositing inside the ventilation control solenoid valve and affecting the normal operation of the valve.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should be covered within the protection scope of this utility model.

Claims

1. A multi-stage adjustable ventilation control solenoid valve structure, characterized in that, The device includes a valve core housing (3), a first pipe connector (4), and a second pipe connector (5). The valve core housing (3) is located above the first pipe connector (4), and the second pipe connector (5) is located below the first pipe connector (4). The first pipe connector (4) has a side vent on its side and N vents at its bottom. The internal cavity of the second pipe connector (5) is connected to the N vents at the bottom of the first pipe connector (4). The second pipe connector (5) also has a main vent that connects its internal cavity to the outside. M valve cores are installed at the bottom of the valve core housing (3) and extend into the interior of the first pipe connector (4). The valve cores cooperate with the vents at the bottom of the first pipe connector (4). M is less than or equal to N.

2. The structure of a multi-stage adjustable ventilation control solenoid valve according to claim 1, characterized in that, All valve cores are equipped with pressure equalization ring grooves.

3. The structure of a multi-stage adjustable ventilation control solenoid valve according to claim 1, characterized in that, M is 3. The first pipe connector (4) has different sizes of air vents corresponding to these 3 valve cores. The 3 valve cores also have different sizes. The 3 valve cores are large valve core (10), medium valve core (11) and small valve core (12).

4. The structure of a multi-stage adjustable ventilation control solenoid valve according to claim 3, characterized in that, When N is greater than 3, the vent size of the first pipe connector (4) is the same as that of the three valve cores.

5. The structure of a multi-stage adjustable ventilation control solenoid valve according to claim 4, characterized in that, The three valve cores of the valve core housing (3) are arranged in a triangular shape, and the center position of the vent at the bottom of the first pipe joint (4) is generally symmetrical about the center of the first pipe joint (4).

6. The structure of a multi-stage adjustable ventilation control solenoid valve according to claim 1, characterized in that, The valve core housing (3) has three electromagnetic components on the top corresponding to the three valve cores. The three electromagnetic components are located in the heat dissipation housing (2) above the valve core housing (3). The heat dissipation housing (2) is connected to a cooling connector (1).

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