Fuel oil combined electromagnetic valve

Abstract

The invention provides a fuel oil combined electromagnetic valve, and relates to the technical field of aero-engine fuel oil control. The device comprises a valve body; the plurality of electromagnetic valve cores are respectively mounted on the same valve body; the oil inlets are formed in the side wall of the valve body, the inlet sides of the multiple electromagnetic valve elements communicate with the same oil inlet, and the outlets of the multiple electromagnetic valve elements communicate with an engine. According to the combined electromagnetic valve, the multiple electromagnetic valve elements are installed on the same valve body, and the combined electromagnetic valve capable of achieving switching of multiple oil ways is formed; the combined electromagnetic valve is provided with a set of oil inlets, oil is provided for all electromagnetic valve elements in the combined electromagnetic valve through the set of oil inlets, and the oil passing through all the electromagnetic valve elements enters an engine. On the whole, a combined valve body can be formed, pipeline connection is omitted, the size and occupied space are reduced, cost is saved, and structural layout of an engine is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of aviation engine fuel control, in particular to a fuel combination solenoid valve. Background Art

[0002] The solenoid valve is a key component of aircraft engine fuel control. Its main function is to control the on-off of the engine fuel supply and realize the switching of the engine ignition and fuel supply pipeline. The traditional solenoid valve, ignition solenoid valve and fuel supply solenoid valve are two products, and the connecting pipeline is 2 in and 2 out, with many pipeline joints, which adds difficulties to the structural layout of the engine with tight structural space.

[0003] Therefore, there is an urgent need for a fuel combination solenoid valve that can save pipeline connections, reduce volume and occupied space, and facilitate engine structural layout. Summary of the invention

[0004] The purpose of the present invention is to provide a fuel combination solenoid valve, which solves the technical problem that there are too many pipe joints in the prior art, which adds difficulty to the structural layout of the engine with tight structural space. The preferred technical solutions among the many technical solutions provided by the present invention can produce many technical effects as described below.

[0005] To achieve the above object, the present invention provides the following technical solutions: The present invention provides a fuel combination solenoid valve, comprising: Valve body; Solenoid valve core, a plurality of the solenoid valve cores are respectively installed on the same valve body; An oil inlet is provided on the side wall of the valve body, the inlet sides of a plurality of the solenoid valve cores are respectively connected to the same oil inlet, and the outlets of a plurality of the solenoid valve cores are respectively connected to the engine.

[0006] Preferably, it also includes: An oil inlet main channel is provided in the valve body, an inlet end of the oil inlet main channel is communicated with the oil inlet port, and an outlet end of the oil inlet main channel is communicated with a plurality of the solenoid valves respectively.

[0007] Preferably, the solenoid valve core comprises: An ignition electromagnet, wherein the ignition electromagnet is mounted on the valve body, and the outlet end of the main oil inlet passage is connected to the inlet end of the ignition electromagnet; An oil supply electromagnet is installed on the valve body, and the outlet end of the main oil inlet channel is connected to the inlet end of the oil supply electromagnet.

[0008] Preferably, it also includes: A first oil inlet branch passage is provided in the valve body and is connected between the outlet end of the oil inlet main passage and the inlet side of the oil supply electromagnet.

[0009] Preferably, it also includes: A second oil inlet branch passage is provided in the valve body and is connected between the outlet end of the oil inlet main passage and the inlet side of the ignition electromagnet.

[0010] Preferably, it also includes: An oil supply passage oil outlet, the oil supply passage oil outlet is provided on the side wall of the valve body and is communicated with the outlet side of the oil supply electromagnet; An ignition path oil outlet is provided on the side wall of the valve body and is communicated with the outlet side of the ignition electromagnet.

[0011] Preferably, it also includes: A second oil outlet passage is provided in the valve body and communicates between the oil outlet of the oil supply passage and the outlet side of the oil supply electromagnet.

[0012] Preferably, it also includes: A first oil outlet passage is provided in the valve body and is connected between the second oil outlet passage and the outlet side of the oil supply solenoid.

[0013] Preferably, it also includes: A fourth oil outlet passage is provided in the valve body and is connected between the ignition path oil outlet and the outlet side of the ignition electromagnet.

[0014] Preferably, it also includes: A third oil outlet passage is provided in the valve body and is connected between the fourth oil outlet passage and the outlet side of the ignition electromagnet.

[0015] In the technical solution provided by the present invention, several solenoid valve cores are installed on the same valve body to form a combined solenoid valve capable of switching multiple oil circuits; wherein a group of oil inlets are provided on the combined solenoid valve, and oil is provided to all the solenoid valve cores in the combined solenoid valve through the group of oil inlets, and the oil passing through all the solenoid valve cores enters the engine respectively. Overall, the present application can form a combined valve body, save pipeline connections, reduce volume and occupied space, save costs, and facilitate engine structural layout. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a cross-sectional schematic diagram of the inlet side and the outlet side of the ignition electromagnet of the present invention; Figure 3 It is a cross-sectional schematic diagram of the main oil inlet channel and the second oil outlet channel of the present invention; Figure 4 It is a cross-sectional schematic diagram of the inlet side and the outlet side of the oil supply electromagnet of the present invention.

[0018] In the figure, 1-valve body; 2-oil inlet; 3-oil supply outlet; 4-ignition outlet; 5-ignition electromagnet; 6-oil supply electromagnet; 7-main oil inlet; 8-first oil inlet branch; 9-second oil outlet; 10-first oil outlet; 11-second oil inlet branch; 12-fourth oil outlet; 13-third oil outlet. DETAILED DESCRIPTION

[0019] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0020] refer to Figure 1-4 A specific embodiment of the present invention provides a fuel combination solenoid valve, comprising: Valve body 1; Solenoid valve core, several solenoid valve cores are respectively installed on the same valve body 1; The oil inlet 2 is provided on the side wall of the valve body 1 , the inlet sides of a plurality of electromagnetic valve cores are respectively connected to the same oil inlet 2 , and the outlets of a plurality of electromagnetic valve cores are respectively connected to the engine.

[0021] The solenoid valve is a key component of the fuel control of an aircraft engine. Its main function is to control the on-off of the engine's fuel supply and to realize the switching of the engine's ignition and fuel supply pipelines. In traditional solenoid valves, the ignition solenoid valve and the fuel supply solenoid valve are two products, and the connecting pipelines are 2 in and 2 out. There are many pipeline joints, which adds difficulties to the structural layout of the engine, which already has a tight structural space. In the present application, several solenoid valve cores are installed on the same valve body 1 to form a combined solenoid valve that can realize the switching of multiple oil circuits; wherein a group of oil inlets 2 are provided on the combined solenoid valve, and oil is provided to all the solenoid valve cores in the combined solenoid valve through a group of oil inlets 2, and the oil passing through all the solenoid valve cores enters the engine respectively. On the whole, the present application can form a combined valve body, save pipeline connections, reduce volume and occupied space, save costs, and facilitate the structural layout of the engine.

[0022] Further optimization plans also include: The main oil inlet passage 7 is provided in the valve body 1 , the inlet end of the main oil inlet passage 7 is communicated with the oil inlet port 2 , and the outlet end of the main oil inlet passage 7 is communicated with a plurality of solenoid valves respectively.

[0023] After the oil enters the oil inlet 2, it is connected to the inlets of several solenoid valves through the main oil inlet channel 7.

[0024] To further optimize the solution, the solenoid valve core includes: An ignition electromagnet 5 is mounted on the valve body 1, and the outlet of the main oil inlet passage 7 is connected to the inlet of the ignition electromagnet 5; The oil supply electromagnet 6 is installed on the valve body 1 , and the outlet end of the oil inlet main channel 7 is communicated with the inlet end of the oil supply electromagnet 6 .

[0025] The solenoid valve core may include an ignition electromagnet 5 and an oil supply electromagnet 6. After the oil inlet main channel 7 is filled with oil, when the ignition electromagnet 5 and / or the oil supply electromagnet 6 are started, the oil passes through the ignition electromagnet 5 and / or the oil supply electromagnet 6 and then enters the engine respectively.

[0026] Further optimization plans also include: A first oil inlet branch channel 8 is provided in the valve body 1 and is connected between the outlet end of the oil inlet main channel 7 and the inlet side of the oil supply electromagnet 6; The second oil inlet branch channel 11 is opened in the valve body 1 and communicates between the outlet end of the oil inlet main channel 7 and the inlet side of the ignition electromagnet 5 .

[0027] The main function of the first oil inlet branch channel 8 is to lead the oil in the main oil inlet channel 7 to the inlet side of the oil supply electromagnet 6, and control the passage or interception of the oil as the oil supply electromagnet 6 is started or shut down; the main function of the second oil inlet branch channel 11 is to lead the oil in the main oil inlet channel 7 to the inlet side of the ignition electromagnet 5, and control the passage or interception of the oil as the ignition electromagnet 5 is started or shut down.

[0028] Further optimization plans also include: The oil supply passage oil outlet 3 is provided on the side wall of the valve body 1 and is communicated with the outlet side of the oil supply electromagnet 6; The ignition oil outlet 4 is provided on the side wall of the valve body 1 and is communicated with the outlet side of the ignition electromagnet 5 .

[0029] The oil supply circuit outlet 3 corresponds to the outlet side of the oil supply electromagnet 6, and the oil passing through the oil supply electromagnet 6 is discharged through the oil supply circuit outlet 3 and enters the engine through the pipeline; the ignition circuit oil outlet 4 corresponds to the outlet side of the ignition electromagnet 5, and the oil passing through the ignition electromagnet 5 is discharged through the ignition circuit oil outlet 4 and enters the engine through the pipeline.

[0030] Further optimization plans also include: A second oil outlet passage 9 is provided in the valve body 1 and is connected between the oil outlet 3 of the oil supply passage and the outlet side of the oil supply electromagnet 6; The first oil outlet passage 10 is opened in the valve body 1 and communicates between the second oil outlet passage 9 and the outlet side of the oil supply solenoid 6 .

[0031] The main function of the second oil outlet channel 9 is to connect the oil outlet port 3 of the oil supply circuit with the outlet side of the oil supply electromagnet 6, and the main function of the first oil outlet channel 10 is to connect the second oil outlet channel 9 with the outlet side of the oil supply electromagnet 6; that is, the outlet side of the oil supply electromagnet 6 is connected to the first oil outlet channel 10, the second oil outlet channel 9, and the oil outlet port 3 of the oil supply circuit in sequence.

[0032] Further optimization plans also include: The fourth oil outlet passage 12 is provided in the valve body 1 and is connected between the ignition oil outlet 4 and the outlet side of the ignition electromagnet 5; The third oil outlet passage 13 is opened in the valve body 1 and communicated between the fourth oil outlet passage 12 and the outlet side of the ignition electromagnet 5 .

[0033] The main function of the fourth oil outlet channel 12 is to connect the ignition circuit oil outlet 4 with the outlet side of the ignition electromagnet 5, and the main function of the third oil outlet channel 13 is to connect the fourth oil outlet channel 12 with the outlet side of the ignition electromagnet 5; that is, the outlet side of the ignition electromagnet 5 is connected to the third oil outlet channel 13, the fourth oil outlet channel 12, and the ignition circuit oil outlet 4 in sequence.

[0034] All of the above-mentioned channels are arranged in the valve body 1, which saves pipeline connections, reduces the volume, and facilitates the engine structure layout; the ignition flow and the fuel supply flow can be achieved by controlling the inner diameter dimensions of all of the above-mentioned channels, reducing product specifications and saving costs.

[0035] It should be noted that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. used herein to indicate the orientation or position relationship is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0036] In the description of this article, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0037] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A fuel combination solenoid valve, characterized in that: include: Valve body (1); Solenoid valve core, a plurality of the solenoid valve cores are respectively mounted on the same valve body (1); An oil inlet (2), the oil inlet (2) being disposed on a side wall of the valve body (1), the inlet sides of a plurality of the solenoid valve cores being respectively connected to the same oil inlet (2), and the outlets of a plurality of the solenoid valve cores being respectively connected to the engine; An oil inlet main channel (7), the oil inlet main channel (7) being disposed in the valve body (1), the inlet end of the oil inlet main channel (7) being in communication with the oil inlet port (2), and the outlet end of the oil inlet main channel (7) being in communication with a plurality of the solenoid valves; The solenoid valve core comprises: an ignition electromagnet (5), the ignition electromagnet (5) being mounted on the valve body (1), the outlet end of the main oil inlet passage (7) being in communication with the inlet end of the ignition electromagnet (5); an oil supply electromagnet (6), the oil supply electromagnet (6) being mounted on the valve body (1), the outlet end of the oil inlet main channel (7) being in communication with the inlet end of the oil supply electromagnet (6); a first oil inlet branch channel (8), the first oil inlet branch channel (8) being disposed in the valve body (1) and communicating between the outlet end of the oil inlet main channel (7) and the inlet side of the oil supply electromagnet (6); a second oil inlet branch channel (11), the second oil inlet branch channel (11) being disposed in the valve body (1) and communicating between an outlet end of the oil inlet main channel (7) and an inlet side of the ignition electromagnet (5); An oil supply passage oil outlet (3), the oil supply passage oil outlet (3) being disposed on a side wall of the valve body (1) and being in communication with an outlet side of the oil supply electromagnet (6); An ignition path oil outlet (4), the ignition path oil outlet (4) being disposed on a side wall of the valve body (1) and being in communication with an outlet side of the ignition electromagnet (5); a second oil outlet passage (9), the second oil outlet passage (9) being disposed in the valve body (1) and communicating between the oil supply passage oil outlet (3) and the outlet side of the oil supply electromagnet (6); A first oil outlet passage (10), the first oil outlet passage (10) being opened in the valve body (1) and being connected between the second oil outlet passage (9) and the outlet side of the oil supply electromagnet (6).

2. The fuel combination solenoid valve according to claim 1, characterized in that: Also includes: A fourth oil outlet passage (12), the fourth oil outlet passage (12) being opened in the valve body (1) and communicating between the ignition path oil outlet (4) and the outlet side of the ignition electromagnet (5).

3. The fuel combination solenoid valve according to claim 2, characterized in that: Also includes: A third oil outlet passage (13), the third oil outlet passage (13) being opened in the valve body (1) and communicating between the fourth oil outlet passage (12) and the outlet side of the ignition electromagnet (5).

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