Intake manifold

Abstract

The utility model discloses an intake manifold which comprises a main air inlet channel, an air inlet and an air outlet are formed in the two ends of the main air inlet channel respectively, a connecting assembly used for being connected with a flame arrester is arranged at the position of the air inlet, and a matching assembly used for being matched with an anti-explosion cylinder cover is arranged at the position of the air inlet. Installation of the device and anti-explosion devices (a flame arrester and an anti-explosion cylinder cover) can be effectively achieved through the connecting assembly and the matching assembly, and therefore the device can be better applied to an anti-explosion diesel engine.

Description

Technical Field

[0001] The utility model relates to the technical field of explosion-proof diesel engines, in particular to an intake manifold. Background Art

[0002] A diesel engine is a thermal energy machine that converts chemical energy into mechanical energy by burning diesel. The intake manifold is one of the key components of a diesel engine. It is installed on the intake side end face of the cylinder head to distribute the gas from the intake pipe to the intake ports of each cylinder. In order to add an explosion-proof function to the diesel engine, it is necessary to add parts such as flame arresters and explosion-proof cylinder heads. Since the flame arresters and explosion-proof cylinder heads need to be installed at the intake and outlet ends of the intake manifold, the existing intake manifold lacks a structure for installing the flame arresters and explosion-proof cylinder heads. As a result, the existing intake manifold cannot be installed with the flame arresters and explosion-proof cylinder heads, and thus the existing intake manifolds on the market cannot be suitable for explosion-proof diesel engines. Utility Model Content

[0003] (I) Purpose of the utility model

[0004] In order to solve the technical problems existing in the background technology, the utility model proposes an intake manifold, which can effectively realize the installation of the device with the flame arrester and the explosion-proof cylinder head through connecting components and matching components, so that the device can be better applied to explosion-proof diesel engines.

[0005] (II) Technical solution

[0006] The utility model provides an intake manifold, comprising a main intake duct, wherein an air inlet and an air outlet are respectively arranged at two ends of the main intake duct, a connecting component for connecting a flame arrester is arranged at the air inlet, and a matching component for matching the explosion-proof cylinder cover is arranged at the air outlet.

[0007] Preferably, the connecting assembly comprises a manifold flange, an air inlet end of the manifold flange is vertically arranged with respect to the air inlet and eccentrically arranged with respect to the air inlet, and is connected with the air inlet pipe through an eccentric unit and communicated with each other.

[0008] Preferably, the eccentric unit includes an elbow and an eccentric transition pipe, one end of the elbow is connected to the air outlet end of the manifold flange, the other end of the elbow is connected to the eccentric transition pipe, and the end of the eccentric transition pipe away from the elbow is connected to the air inlet.

[0009] Preferably, the inner diameter of the eccentric transition pipe increases along the elbow outlet end toward the main air inlet duct inlet end assembly.

[0010] Preferably, the matching component includes an air intake panel, which is connected to one end of the main air intake duct provided with an air outlet and is interconnected with the air outlet, and the air intake panel is provided with a plurality of air outlet openings.

[0011] Preferably, a threaded blind hole for matching with the explosion-proof cylinder cover is provided at one end of the air intake panel away from the main air intake passage.

[0012] Compared with the prior art, the above technical solution of the utility model has the following beneficial technical effects:

[0013] In the utility model, when the device needs to be used, the main air intake duct can be connected to the flame arrester through the connecting component, and the device can be connected to the explosion-proof cylinder head through the matching component. The installation of the device and the explosion-proof devices (flame arrester and explosion-proof cylinder head) can be effectively realized through the connecting component and the matching component, so that the device can be better applied to explosion-proof diesel engines. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a structural schematic diagram of an intake manifold.

[0015] Figure 2 It is a structural schematic diagram of an air intake panel 5 in an intake manifold proposed by the utility model.

[0016] Figure numerals: 1. main air inlet duct; 2. manifold flange; 3. elbow; 4. eccentric transition pipe; 5. air inlet panel. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0018] In the description of the utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0019] In the description of the utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, welding, riveting, bonding, etc., or a detachable connection, threaded connection, key connection, pin connection, etc., or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0020] like Figure 1-2 As shown, an intake manifold proposed by the utility model includes a main intake duct 1, and an air inlet and an air outlet are respectively provided at both ends of the main intake duct 1. A connecting component for connecting a flame arrester is provided at the air inlet, and a matching component for matching the explosion-proof cylinder cover is provided at the air outlet.

[0021] In the utility model, when the device needs to be used, the main intake duct 1 can be connected to the flame arrester through a connecting component, and the device can be connected to the explosion-proof cylinder head through a matching component. The installation of the device and the explosion-proof devices (flame arrester and explosion-proof cylinder head) can be effectively realized through the connecting component and the matching component, so that the device can be better applied to explosion-proof diesel engines.

[0022] In an optional embodiment, the connecting assembly includes a manifold flange 2, the air inlet end of the manifold flange 2 is vertically arranged with the air inlet and eccentrically arranged with the air inlet, and is connected to the air inlet pipe through an eccentric unit and communicated with each other. The air inlet end of the manifold flange 2 is vertically arranged with the air inlet, which can further adapt to the installation between the device and the flame arrester, and the eccentric arrangement of the air inlet end of the manifold flange 2 with the air inlet can make the device and the flame arrester more adaptable to the national standard for production when they are installed and applied to explosion-proof diesel engines. The manifold flange 2 can be effectively installed and connected with the flame arrester, and the main intake duct 1 can be stably installed with the flame arrester through the manifold flange 2 and the eccentric unit.

[0023] In an optional embodiment, the eccentric unit includes an elbow 3 and an eccentric transition pipe, one end of the elbow 3 is connected to the air outlet end of the manifold flange 2, the other end of the elbow 3 is connected to the eccentric transition pipe 4, and the end of the eccentric transition pipe 4 away from the elbow 3 is connected to the air inlet. The elbow 3 can be used to achieve verticality between the manifold flange 2 and the air inlet, so as to further adapt to the installation between the device and the flame arrester. The elbow 3 can effectively change the direction between the air outlet end and the air inlet of the manifold flange 2, and the eccentric transition pipe 4 can correct the gas direction, so that the main air inlet 1 is smoother when taking in air.

[0024] In an optional embodiment, the inner diameter of the eccentric transition pipe 4 increases along the outlet end of the elbow 3 toward the inlet end assembly of the main inlet duct 1. The increase in the inner diameter assembly of the eccentric transition pipe 4 can effectively reduce the resistance of the gas when it enters the main inlet duct 1 from the eccentric transition pipe 4, and because the cross-sectional area of ​​the gas becomes larger when it enters the main inlet duct 1 from the eccentric transition pipe 4, the gas can be discharged more evenly from the matching assembly, and the inlet port of the main inlet duct is arranged on its inlet end.

[0025] In an optional embodiment, the matching component includes an air intake panel 5, which is connected to one end of the main air intake duct 1 provided with an air outlet and is interconnected with the air outlet. The air intake panel 5 is provided with multiple air outlet openings, which is connected to the main air intake duct 1 through the air intake panel 5, and the connection of the explosion-proof cylinder cover is completed through the air intake panel 5, thereby realizing the installation of the main air intake duct 1 and the explosion-proof cylinder cover, and the multiple air outlet openings can exhaust air to realize the connection between the main air intake duct 1 and the explosion-proof cylinder cover, so that the installation of the device and the explosion-proof cylinder cover can be effectively coordinated.

[0026] In an optional embodiment, the air intake panel 5 is provided with a threaded blind hole for matching with the explosion-proof cylinder cover at one end away from the main air intake duct 1. The threaded blind hole can more conveniently connect the air intake panel 5 to the explosion-proof cylinder cover.

[0027] In an optional embodiment, the effective width of the explosion-proof joint surface of the manifold flange 2 is not less than 25 mm, the effective width from the inner edge of the explosion-proof joint surface of the manifold flange 2 to the edge of the bolt hole is not less than 9 mm, the surface roughness Ra of the explosion-proof joint surface of the manifold flange 2 is not less than 6.3 mm, and the flatness is not greater than 0.15 mm;

[0028] The effective width of the flameproof joint surface between the air intake panel 5 and the main air intake duct 1 is not less than 13mm, and the effective width from the inner edge of the flameproof joint surface to the edge of the bolt hole is not less than 9mm; the surface roughness Ra of the flameproof joint surface is not less than 6.3m, and the flatness is not greater than 0.15mm;

[0029] The air inlet of the main air inlet duct 1 is eccentrically arranged and located below the transverse center axis of the main air inlet duct 1 .

[0030] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation on the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the claims attached to the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the attached claims, or the equivalent forms of such scope and boundaries.

Claims

1. An intake manifold, characterized in that: It comprises a main air intake duct (1), wherein two ends of the main air intake duct (1) are respectively provided with an air intake port and an air outlet, the air intake port is provided with a connecting component for connecting a flame arrester, and the air outlet is provided with a matching component for matching an explosion-proof cylinder cover.

2. An intake manifold according to claim 1, characterized in that: The connection assembly comprises a manifold flange (2), the air inlet end of the manifold flange (2) being arranged perpendicularly to the air inlet and eccentrically to the air inlet, and being connected to the air inlet pipe through an eccentric unit and communicating with each other.

3. An intake manifold according to claim 2, characterized in that: The eccentric unit comprises an elbow (3) and an eccentric transition pipe (4), one end of the elbow (3) is connected to the air outlet end of the manifold flange (2), the other end of the elbow (3) is connected to the eccentric transition pipe (4), and the end of the eccentric transition pipe (4) away from the elbow (3) is connected to the air inlet.

4. An intake manifold according to claim 3, characterized in that: The inner diameter of the eccentric transition pipe (4) increases along the outlet end of the elbow (3) toward the inlet end component of the main inlet duct (1).

5. An intake manifold according to claim 1, characterized in that: The matching component comprises an air intake panel (5), the air intake panel (5) being connected to one end of the main air intake duct (1) provided with an air outlet and being interconnected with the air outlet, and the air intake panel (5) being provided with a plurality of air outlet openings.

6. An intake manifold according to claim 5, characterized in that: One end of the air intake panel (5) away from the main air intake passage (1) is provided with a threaded blind hole for matching with the explosion-proof cylinder cover.

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