Silent generator

Abstract

The utility model discloses a mute generator, including the casing, the inside of casing is provided with engine and muffler, the air inlet of muffler is connected with the exhaust end of engine, the exhaust port of muffler is connected with the exhaust tail pipe of penetrating casing, the exhaust tail pipe is provided with the bellows section, and the muffler is connected with the fixed engine.

Description

Technical Field

[0001] This utility model relates to a silent generator. Background Technology

[0002] A silent generator is a power generation device that uses a casing to enclose the generator's components (such as the engine, muffler, air filter, etc.) to reduce the noise generated by the generator during operation from spreading to the surrounding environment.

[0003] Chinese patent document CN222526406U discloses a generator, including a housing, an internal sound-absorbing air guide shroud, an internal silencer, an exhaust port at the bottom of the sound-absorbing air guide shroud, and a ventilation opening on the housing opposite to the exhaust port. The generator is characterized in that: an exhaust pipe is provided on the side of the silencer facing the exhaust port, a tail gas duct is connected to the exhaust pipe, and the housing has at least one mounting hole facing a different direction than the exhaust port for the tail gas duct to pass through.

[0004] In practical applications, the aforementioned existing technology involves the muffler being fixed to the housing via a sound-absorbing shroud. To reduce the transmission of engine vibration to the muffler, a flexible duct is used to connect the muffler and the engine. This results in a significant gap between the muffler and the engine, increasing the overall size of the generator. When installation space is limited, this can cause installation difficulties and affect the generator's practicality. Utility Model Content

[0005] The purpose of this invention is to provide a silent generator to solve the problem of excessively large generator size in the prior art.

[0006] To achieve the above objectives, the basic solution of this utility model provides a silent generator, including a housing, an engine and a muffler are arranged inside the housing, the air inlet of the muffler is connected to the exhaust end of the engine, the exhaust outlet of the muffler is connected to an exhaust tailpipe that penetrates the housing, the exhaust tailpipe is provided with a corrugated pipe section, and the muffler is fixedly connected to the engine.

[0007] The beneficial effects of this basic solution are as follows: By incorporating a corrugated pipe section into the exhaust tailpipe and connecting it to the engine in conjunction with the muffler, the muffler is supported by the engine. This eliminates the need for flexible pipe fittings when connecting the muffler's intake to the engine's exhaust end, reducing the distance between the muffler and the engine and thus decreasing the overall size of the silent generator. Furthermore, vibrations generated by the muffler due to engine vibration are absorbed by the corrugated pipe section as they travel along the exhaust tailpipe, preventing the vibrations from being transmitted to the housing and thus reducing the amplitude of housing vibration. Compared to existing technologies, this solution effectively reduces the size of the silent generator while preventing increased housing vibration.

[0008] Preferably, the exhaust tailpipe is located below the muffler. This arrangement makes full use of the space below the muffler to accommodate the exhaust tailpipe, which helps to further reduce the size of the generator.

[0009] Preferably, the corrugated pipe section extends along the width of the housing. This arrangement makes full use of the space below the muffler to arrange the exhaust tailpipe, which helps to further reduce the size of the generator.

[0010] Preferably, the exhaust tailpipe is provided with an exhaust deflection section for redirecting the gas flowing through the corrugated pipe section and discharging it along the length of the casing to the outside of the casing. This arrangement aligns the generator's exhaust direction with that of most existing generators, facilitating generator installation and adaptation, and improving the generator's practicality.

[0011] Preferably, the exhaust tailpipe has a necked section at its outlet end that reduces the cross-sectional area of ​​the outlet end. This design reduces the cross-sectional area of ​​the exhaust tailpipe, thus blocking noise within the exhaust tailpipe and improving the generator's quietness.

[0012] Preferably, the necking includes an annular component connected inside the exhaust tailpipe. This arrangement utilizes the annular component to reduce the cross-sectional area of ​​the pipe, facilitating processing and reducing production costs.

[0013] This utility model has the following beneficial effects: This solution can reduce the size of the silent generator and avoid increasing the vibration amplitude of the casing; it can also reduce exhaust noise and further improve the quietness of the generator. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of an embodiment of a silent generator according to the present invention; Figure 2 for Figure 1The front view; Figure 3 for Figure 2 Top view; Figure 4 for Figure 2 AA section view in the image. Detailed Implementation

[0015] The following detailed description illustrates the specific implementation method: To facilitate understanding of the solution, the upper part of the shell in the attached drawings of this utility model has been removed.

[0016] The reference numerals in the accompanying drawings include: housing 1, engine 2, muffler 3, exhaust tailpipe 4, bellows section 41, exhaust steering section 42, and annular component 5.

[0017] The basic implementation examples are as follows: Figures 1 to 4 As shown: A silent generator includes a housing 1. An engine 2 and a muffler 3 are housed inside the housing 1. The air inlet of the muffler 3 is connected to the exhaust end of the engine 2, and the exhaust outlet of the muffler 3 is connected to an exhaust tailpipe 4 that penetrates the housing 1. This allows the exhaust gas from the engine 2 to be silenced by the muffler 3 before being discharged to the outside of the housing 1 through the exhaust tailpipe 4. The engine 2 is connected to the housing 1 via a vibration damping bracket, thereby reducing the transmission of vibration from the engine 2 to the housing 1.

[0018] In this embodiment, the muffler 3 is connected and fixed to the engine 2, so that the air inlet of the muffler 3 can be connected to the exhaust end of the engine 2 without the need for an intermediate pipe, thus reducing the distance between the muffler 3 and the engine 2; at the same time, the muffler 3 is directly supported and fixed through the engine 2, without the need for an additional support structure to support the muffler 3, which helps to simplify the structure.

[0019] In this embodiment, the exhaust tailpipe 4 is provided with a corrugated section 41, which reduces the transmission of vibration along the exhaust tailpipe 4 to the housing 1, thereby avoiding the problem of increased vibration amplitude of the housing 1. The exhaust tailpipe 4 is located below the muffler 3, thus making full use of the space below the muffler 3 to further reduce the size of the generator. Preferably, the corrugated section 41 extends along the width direction of the housing 1. The exhaust tailpipe 4 is provided with an exhaust deflection section 42 for deflecting the gas flowing through the corrugated section 41 and discharging it along the length direction of the housing 1 to the outside of the housing 1.

[0020] In this embodiment, the exhaust tailpipe 4 has a neck that reduces the cross-sectional area of ​​the exhaust end cavity, thereby reducing generator exhaust noise and improving noise reduction performance. The neck includes an annular member 5 connected inside the exhaust tailpipe 4. By connecting the annular member 5 inside the exhaust tailpipe 4, the annular member 5 occupies part of the space in the exhaust end cavity, allowing gas to exit only from the middle of the annular member 5, thus achieving the effect of reducing the cross-sectional area of ​​the exhaust end cavity.

[0021] This solution can reduce the size of the silent generator, avoid increasing the vibration amplitude of the casing 1, and reduce exhaust noise, further improving the generator's quietness.

[0022] The above description is merely an embodiment of this utility model, and common knowledge such as specific structures and characteristics of the solution is not described in detail here. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model, and these should also be considered within the protection scope of this utility model. These modifications and improvements will not affect the effectiveness of the implementation of this utility model or the practicality of the patent.

Claims

1. A silent generator, comprising a housing, wherein an engine and a muffler are disposed inside the housing, the air inlet of the muffler is connected to the exhaust end of the engine, and the exhaust outlet of the muffler is connected to an exhaust tailpipe penetrating the housing, characterized in that: The exhaust tailpipe is provided with a corrugated pipe section, and the muffler is fixedly connected to the engine.

2. A silent generator according to claim 1, characterized in that: The exhaust tailpipe is located below the muffler.

3. A silent generator according to claim 2, characterized in that: The corrugated pipe section extends along the width direction of the shell.

4. A silent generator according to claim 3, characterized in that: The exhaust tailpipe is provided with an exhaust deflection section for turning the gas flowing through the corrugated pipe section and discharging it to the outside of the shell along the length of the shell.

5. A silent generator according to any one of claims 1 to 4, characterized in that: The exhaust tailpipe has a neck at the outlet end that reduces the cross-sectional area of ​​the outlet end.

6. A silent generator according to claim 5, characterized in that: The neck includes an annular component connected inside the exhaust tailpipe.

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