Perforated louvers to reduce noise leakage from the generator set enclosure.

Abstract

To provide a perforated louver that reduces noise leakage from the enclosure for the generator set. [Solution] The genset comprises a generator, an enclosure, and a number of louvers. The enclosure defines a space that is at least partially enclosed, and the generator is located in that space. The louvers extend inward from the enclosure into the enclosed space. Each louver has a short leg and a long leg, the long leg being connected to the short leg at an angle to the short leg.

Description

Technical Field

[0001] Cross-Reference to Related Applications This application claims the benefit of and priority to U.S. Patent Application No. 19 / 061,757, filed on February 24, 2025, the entire contents of which are incorporated herein by reference.

[0002] The present disclosure generally relates to an enclosure for housing an electrical machine.

Background Art

[0003] Generator sets (also known as "gen-sets") may be used to generate physical power output for a variety of applications. A gen-set typically includes an engine and a generator coupled to the engine. The engine is structured to mechanically drive the generator, and the generator can produce electricity. The engine and the generator may be housed in an enclosure that allows the gen-set to operate outdoors.

Summary of the Invention

Means for Solving the Problems

[0004] In some embodiments, a gen-set includes a generator, an enclosure, and a plurality of louvers. The enclosure defines an at least partially enclosed space, and the generator is disposed in the space. The louvers extend inwardly from the enclosure into the enclosed space. Each of the louvers includes a short leg and a long leg, and the short leg extends from the long leg at an angle relative to the long leg.

[0005] In some embodiments, each louver further comprises fasteners for detachably connecting the short legs to the long legs. In some implementations, the position of the fasteners is adjustable so that the angle between the short and long legs can vary within a range of approximately 60° to 120°. Furthermore, the fasteners can be removed so that the short and long legs are disconnected from each other to adjust the genset value.

[0006] In some embodiments, the louver further comprises one or more acoustic linings configured to absorb noise generated by the genset. In some implementations, each of the linings may have a thickness ranging from approximately 10 to 100 millimeters.

[0007] In some embodiments, the short and long legs of the louver are structured such that the ratio between the length of the short leg and the length of the long leg varies within a range of approximately 0.3:1 to 0.8:1.

[0008] In some embodiments, the short and long legs of the louver are formed integrally. In some implementations, the integrated louver is a single component and does not require fasteners.

[0009] In some embodiments, the first end of the longitudinal leg is connected to the inner surface of the enclosure, and the first end of the transverse leg extends from the second end of the longitudinal leg.

[0010] In some embodiments, the enclosure for the genset comprises a housing that defines at least partially enclosed space, a plurality of openings formed on at least one side of the housing, and a plurality of louvers connected to at least one side of the housing. Each of the plurality of louvers comprises a first leg and a second leg, the second leg being connected to the first leg at an angle to the first leg.

[0011] In some embodiments, the louvers are mounted on the sides of the enclosure and extend upward at an angle from the enclosure into the enclosed space, defining multiple openings. In some implementations, the louvers are equipped with acoustic lining to absorb noise.

[0012] In some embodiments, the short and long legs of the louver are structured such that the ratio between the length of the first leg and the length of the second leg varies within a range of 1:2 to 3:4.

[0013] In some embodiments, the airflow system for the Genset comprises an enclosure, a blower, and a plurality of louvers arranged in a louver assembly and connected to the enclosure. The blower is configured to drive air into the enclosure. The plurality of louvers are assembled such that each louver is structured to form a first path and a second path. The first path is the path through which the air driven by the blower is directed toward the enclosure. The second path is the path through which sound is directed from inside the enclosure toward outside the enclosure in multiple directions along the louver assembly. Each of the first and second paths is structured to restrict direct movement in and out of the enclosure.

[0014] In some embodiments, one side of one leg of the louver is configured to reflect sound, and the other side of the leg contains sound-absorbing material, and different legs of the louver have two sides, each containing sound-absorbing material.

[0015] In some embodiments, the louvers are arranged such that the first louvers above the second louvers overlap the second louvers to prevent direct airflow into and out of the enclosure.

[0016] In some embodiments, each side of a plurality of louvers facing a second path is provided with sound-absorbing material.

[0017] All combinations of the aforementioned concepts and any additional concepts discussed in more detail below (provided such concepts do not contradict each other) are assumed to constitute part of the subject matter disclosed herein. Specifically, all combinations of claimed subject matter appearing at the end of this disclosure are assumed to be part of the subject matter disclosed herein.

[0018] The aforementioned or other features of this disclosure will become fully apparent from the following description and the attached claims when understood in conjunction with the attached drawings. Understanding that these drawings depict only some of the embodiments of this disclosure and therefore should not be considered limitations on the scope of this disclosure, this disclosure is described with additional clarity and detail through the use of the attached drawings. [Brief explanation of the drawing]

[0019] [Figure 1] This is a block diagram of a Genset according to an embodiment. [Figure 2] Figure 1 is a perspective view of the Genset louver assembly. [Figure 3] Figure 1 is a side perspective view of the Genset louver assembly. [Figure 4] Figure 1 is a perspective view of the genset's louvers. [Figure 5] This is a block diagram of the airflow system of the Genset according to an embodiment. [Modes for carrying out the invention]

[0020] The accompanying drawings are referenced throughout the following detailed description. In the drawings, similar reference numerals typically identify similar components unless the context indicates otherwise. The exercises described in the detailed description, drawings, and claims are not intended to be limiting. Other exercises may be used and other modifications may be made without departing from the spirit or scope of the subject matter presented herein. It will be readily apparent that aspects of this disclosure may be arranged, substituted, combined, and designed in a wide variety of different configurations, as broadly described herein and shown in the drawings, all of which are expressly assumed to constitute part of this disclosure.

[0021] The embodiments described herein generally relate to methods and devices for suppressing acoustic noise generated as a result of ventilation entering and exiting an enclosure (e.g., a Genset enclosure). Specifically, the embodiments described herein generally relate to a louver assembly comprising a plurality of louvers connected to a ventilation opening in an enclosure. One or more louvers of the louver assembly can redirect noise in the air many times toward at least one acoustic lining positioned along the louver. The acoustic lining can absorb and reduce the noise redirected by the louvers. Each louver of the louver assembly defines a flow path that can be adjusted to optimize airflow and noise reduction within the enclosure. For example, an enclosure may be useful to withstand changing and / or harsh environmental conditions, including temperature, humidity, and rainfall, and the louver assembly enables more effective airflow and / or noise control, including under such conditions.

[0022] In some embodiments, the one or more louvers include a long leg and a short leg. The louver may include a fastener configured to releasably connect the short leg to the long leg. The louver enables effective use of an acoustic lining, which absorbs acoustic energy before the acoustic energy can leak out of the enclosure. The louver allows acoustic energy to undergo multiple reflections so that the acoustic energy can be effectively absorbed by the acoustic lining.

[0023] An enclosure for a genset typically includes an opening to facilitate the exchange of ventilation between the interior of the enclosure and the environment surrounding the enclosure, thereby cooling internal components during operation. However, the opening also provides a path through which sound from the engine and other components can exit the enclosure. For this reason, enclosures for gensets often include noise suppression devices (e.g., parallel baffle silencers, attenuators, etc.) capable of reducing noise by passing cooling air through a series of parallel baffles, at cooling air intakes and exhaust paths. The louver according to the present disclosure enables less bulky and less restrictive noise suppression (e.g., for airflow along a flow path through the enclosure), such as to provide noise reduction on its own and / or to reduce or eliminate the need for a separate noise suppression device.

[0024] Figure 1 is a schematic block diagram of a genset 100 according to an embodiment. The genset 100 includes an enclosure 110, a louver assembly 120 (e.g., a plurality of louvers 200), and a generator shown as an electric machine 130. The genset 100 may include an engine 140 coupled to the electric machine 130. The enclosure 110 defines an at least partially enclosed space. The enclosure 110 may be a housing for components of the genset 100 such as the electric machine 130. In some embodiments, different numbers of louver assemblies may be included.

[0025] The engine 140 may be a diesel engine, gasoline engine, natural gas engine, dual-fuel engine, biodiesel engine, E85 engine, flex-fuel engine, gas turbine, hybrid engine, electric motor, hydrogen engine, or other types of internal combustion engines or drive units. In various embodiments, the engine 140 may be a high-horsepower (HHP) engine capable of providing output in the range of 500 hp to 4,500 hp or more. The electromachine 130 may be a generator or AC generator, etc. In one embodiment, the engine 140 is connected to the electromachine 130 by a drive shaft (not shown), etc. During operation, the engine 140 drives the electromachine 130 to generate electricity (e.g., power). Embodiments of the present disclosure are also applicable to various types of prime movers (mechanical, electric, hydraulic, and / or fuel cell types) at various power intensities (low, medium, and high horsepower).

[0026] The enclosure 110 includes end walls (e.g., container walls, side walls, etc.) that at least partially define an internal volume for housing the louver assembly 120, the electromechanism 130, the engine 140, and other genset components. For example, the end walls may comprise an enclosure floor 112, an enclosure roof 114, and a pair of container side walls 116 oriented substantially perpendicular to the enclosure floor 112 and the enclosure roof 114. The enclosure floor 112 and the enclosure roof 114 are connected at their side edges to the edges of the container side walls 116. One or more doors may be provided on one or more of the container end walls so that the operator of the genset 100 (e.g., maintenance or repair personnel) can enter the internal volume defined by the enclosure 110 and approach the genset 100. The enclosure 110 may comprise an enclosure floor 112, an enclosure roof 114, and a pair of enclosure end walls connected to the corresponding edges of a pair of container side walls 116, positioned at the end of the enclosure 110 to seal the enclosure 110 from the surrounding environment. One or more ventilation openings, indicated as ventilation openings 118a-118e, may be provided in any number of container side walls 116 of the enclosure 110 to allow the flow of both air and sound in and out of the enclosure 110. In some embodiments, louver assemblies 120 may be positioned at the ventilation openings 118a-118e of the enclosure 110. In some embodiments, louver assemblies 120 may be positioned anywhere along the end walls of the enclosure 110. The end walls of the enclosure 110 may be formed from any suitable material, such as corrugated weathering steel. Furthermore, the enclosure 110 may have the dimensions of a standard ISO container (for example, about 6.1 meters, about 12.2 meters, about 14.6 meters, or about 16.2 meters in length, and about 2.59 meters, about 2.9 meters, or about 3.2 meters in height). In some embodiments, the enclosure 110 may include a non-ISO container, such as an ISO container of any non-standard size.The enclosure 110 may be formed from flat sheet metal, stamped sheet metal, or non-metallic material (e.g., wood, plastic, reinforced polymer, cement, concrete, glass fiber, carbon fiber, etc.).

[0027] In some embodiments, the enclosure 110 may be located on the ground. In some embodiments, the enclosure 110 may be mounted on a fuel tank (not shown) located on the ground, or on a skid (not shown) located on the ground. In some embodiments, the enclosure 110 may be located on a roof or other suitable location above the ground.

[0028] The enclosure 110 is configured to allow air to flow into and / or through the enclosure 110. For example, such airflow can cool the Genset 100 and / or provide intake air for the engine 140 of the Genset 100. One or more ventilation openings defined in the enclosure 110 can fluidly connect the internal volume of the enclosure 110 with the environment surrounding the enclosure 110.

[0029] As shown in Figure 2, the louver assembly 120 comprises a plurality of louvers 200. In some embodiments, the louver assembly 120 can comprise any number of louvers 200. In some embodiments, the louver assembly 120 comprises a frame 280 configured to connect the louver assembly 120 to the enclosure 110. In some embodiments, each louver 200 is directly attached to the inner surface of at least one side of the enclosure 110. In this method, the louver assembly 120 can be an inlet and / or outlet that fluidly connects the internal volume of the enclosure 110 to the environment surrounding the enclosure. The louvers 200 of the louver assembly 120 are positioned such that, when connected to the enclosure 110, each louver 200 is positioned between a first opening (e.g., reference numeral 118a in Figure 1) and a second opening (e.g., reference numeral 118b in Figure 1). In other words, each louver 200 is attached to at least one side of the enclosure between corresponding first openings among a plurality of openings. In this method, the louver assembly 120 creates a plurality of ventilation openings 118a to 118e when connected to the enclosure 110. For example, the louver assembly 120 shown in Figure 2 includes six louvers 200. Each louver 200 has a first ventilation opening 118a above it and a second ventilation opening 118b below it. This configuration allows air to flow between the enclosure 110 and the environment surrounding the enclosure 110, both above and below each louver 200.

[0030] Each louver 200 may comprise a first (e.g., short) leg 210 and a second (e.g., long) leg 220. The louver 200 may comprise fasteners 240, shown as bolts, for connecting the first leg 210 to the second leg 220. That is, each louver 200 may comprise fasteners such that the first leg 210 and the second leg 220 are detachably connected. In some embodiments, the second leg 220 comprises a first end and a second end, and the first leg 210 comprises a first end and a second end. In some embodiments, the first leg 210 extends from the second leg 220 such that the first end of the first leg 210 extends from the second end of the second leg 220 toward the second end of the first leg 210.

[0031] In some embodiments, the second leg 220 is connected to the inner surface of at least one side of the enclosure 110, with the first leg 210 connected to the second leg 220. That is, the first end of the second leg 220 is connected to the inner surface of the enclosure 110, and the first end of the first leg 210 extends from the second end of the longitudinal leg 220.

[0032] In some embodiments, the first leg 210 and the second leg 220 may be made from a metal such as carbon steel or aluminum. In some embodiments, the first leg 210 and the second leg 220 may be made from any rigid material or combination of materials.

[0033] In various embodiments, the first leg portion 210 may be lined with a lining 230. The lining 230 may be perforated, such as having a series of holes, to increase the surface area in contact with noise and to break down and dissipate the sound waves of the noise. The lining 230 may be an acoustic lining, such as being structured to absorb and reduce noise (e.g., sound, acoustic energy, etc.) generated by the Genset 100. In other words, the first leg portion 210 includes a perforated lining 230 to absorb acoustic energy. Noise may be generated by internal components of the Genset 100, such as an electromechanism 130 or an engine 140. Alternatively or in combination, noise may be generated as a result of airflow passing through the enclosure 110.

[0034] In some embodiments, the second leg 220 is mechanically connected to the first leg 210 via a fastener 240. In this configuration, the second leg 220 may be selectively removed from the first leg 210 to achieve at least one of the following: a target temperature of the Genset 100 by improving the loss coefficient, a target value for the airflow entering the enclosure 110 by improving the loss coefficient, and / or any other operating value desired by the operator of the Genset 100. For example, in the removal of the first leg 210 from the second leg 220, the air entering the enclosure 110 has a more direct path into the enclosure 110 because there is no first leg 210 causing redirection. As a result of the more direct path, the incoming air can have a higher velocity, experience less friction, and consequently result in an improved loss coefficient and a larger value for the airflow entering the enclosure 110.

[0035] Figure 3 is a side view of a louver assembly 120 according to an embodiment. As shown in Figure 3, each louver 200 is connected to a frame 280 such that the louvers 200 extend from the enclosure 110 into the internal volume of the enclosure 110 at an extension angle 270 determined between (1) a horizontal reference plane 272 substantially parallel to the enclosure floor 112 and the enclosure roof 114 and (2) the underside of the louvers 200. In some embodiments, the louvers 200 are connected to the frame 280 such that the extension angle 270 is substantially upward (i.e., vertical) with respect to the horizontal reference plane 272.

[0036] As shown in Figure 3, the fastener 240 connects the first leg 210 to the second leg 220 such that the second leg 220 is connected to the first leg 210 at a louver angle 260. The fastener 240 connects the first leg 210 to the second leg 220 such that the louver angle 260 is selectively adjustable between a range of values ​​to achieve at least one of the following: a target pressure drop value for the air pressure entering the enclosure 110, a target temperature for the Genset 100, or a target output noise level for the Genset 100. For example, the fastener may be movable to allow adjustment of the louver angle 260 between the first leg 210 and the second leg 220 to achieve a target pressure drop value along the louver 200. In this method, the position of the fastener 240 at least partially determines the louver angle 260 created by the position of the second leg 220 relative to the first leg 210.

[0037] In some embodiments, the first leg 210 can be detachably connected to a second leg 220 to allow adjustment of the noise level of the Genset 100 to a target output noise level of the Genset 100 and adjustment of the temperature of the Genset 100 to a target temperature of the Genset 100.

[0038] In some embodiments, the louver angle 260 is adjustable between 60° and 120°, within a range of values ​​including 60° and 120°. That is, the first leg 210 and the second leg 220 are connected such that the louver angle 260 is greater than or equal to 60° and less than or equal to 120°. For example, if it is determined that the pressure drop of air entering the enclosure is too large, the operator of the Genset 100 can reposition (i.e., loosen) the fastener 240 to increase the pressure of air entering the enclosure 110 by reducing the redirection of air entering the enclosure. As the louver angle 260 increases, the restriction of flow decreases, which means that the louver 200 is positioned at a relatively large angle (e.g., 120°), allowing more airflow and absorbing / reducing less noise compared to a louver 200 positioned at a relatively small angle (e.g., 60°). In some embodiments, the louver angle 260 is 90° when the fastener 240 is fully tightened.

[0039] In some embodiments, the louver angles 260 of each louver 200 of the louver assembly 120 are the same. In these embodiments, assuming a constant amount of air enters the enclosure 110, the amount of airflow received by each louver 200 and the pressure drop caused by the amount of noise absorbed and / or reduced are substantially constant.

[0040] In some embodiments, the louver angle 260 of one louver 200 differs from that of the other louver 200. In this approach, the first louver 200 has a louver angle 260 of 90°, and the second louver 200 has a louver angle 260 of 100°. Advantageously, this variation in angle allows for selective modification of the performance of each louver 200 to achieve desired effects such as a target volume of airflow, a target pressure drop, a target temperature of the genset 100, and a target output noise level. For example, assuming a constant airflow enters the enclosure 110, the air received by the first louver 200 will be more restricted than the air received by the second louver 200 due to the difference in louver angle 260. In this example, the pressure drop for the air received by the first louver 200 will be greater than the pressure drop for the air received by the second louver 200. Furthermore, the noise emanating from the enclosure 110 is absorbed more effectively by the first louver 200 than by the second louver 200, due to the louver angle 260 of the first louver 200, which results in more reflection toward the backed surface of the louver assembly 120.

[0041] The first leg 210 has a length L1 212 and a width W1 214. The second leg 220 has a length L2 222 and a width W2 224. In some embodiments, the ratio of L1 212 to L2 222 of the first leg 210 and the second leg 220 is any value between 0.3:1 and 0.8:1. That is, the ratio of L1 212 of the first leg 210 to L2 222 of the second leg 220 is greater than or equal to 0.3:1 and less than or equal to 0.8:1. In some embodiments, the ratio of L1 212 to L2 222 is any value such that L2 222 is greater than L1 212. In this method, L1 212 is substantially less than L2 222, which means that the second leg 220 is substantially longer than the first leg 210.

[0042] As shown in Figure 3, the position of each louver 200 of the louver assembly 120 may be structured based on one or more vertical lengths. A first vertical length H1 250 is the vertical length between the highest point of the first leg 210 of the first louver 200. A second vertical length H2 252 is the vertical length between the highest point of the first louver 200 and the highest point of the second louver 200, which is positioned below the first louver 200. A third vertical length H3 254 is the vertical length between the highest point of the first louver 200 and the lowest point of the first louver 200. In some embodiments, H1 250 is greater than H2 252 and less than H3 254. In this method, direct (i.e., unregulated) flow in and out of the enclosure 110 is regulated, meaning that air or sound flowing across the louver assembly 120 comes into contact with each louver 200 and is at least partially redirected and / or absorbed. This redirection and absorption is further explained in relation to Figure 5.

[0043] Figure 4 is a perspective view of the louver 200 according to an embodiment. As shown in Figure 4, the first leg 210 comprises a lower surface 218 and an upper surface 216. The lower surface 218 of the first leg 210 is connected to a lining 230 described with reference to Figure 2. The second leg 220 comprises a lower surface 228 and an upper surface 226. As shown, the first leg 210 and the second leg 220 are fitted with an acoustic lining 410. The acoustic lining 410 is specifically designed to absorb and reduce noise redirected by each louver 200 of the louver assembly 120. In other words, the lower surface 228 of the second leg 220 is fitted with the acoustic lining 410 to absorb acoustic energy.

[0044] In some embodiments, the louvers 200 are provided with acoustic lining 410 in the first leg 210 and / or second leg 220 so that each louver 200 absorbs acoustic energy.

[0045] In some embodiments, the acoustic lining 410 is an acoustic damping material such as polyurethane foam or melamine foam, with a thickness between 10 mm and 100 mm. In some embodiments, the acoustic lining 410 can have any other thickness. In some embodiments, the acoustic lining 410 has a substantially constant thickness and provides substantially similar absorption quality throughout its volume. In some embodiments, the acoustic lining 410 has a varying thickness throughout its volume. In various embodiments, the acoustic lining 410 may be or may include fibrous materials (e.g., rock wool, glass wool, mineral cotton, etc.) or non-fibrous materials (e.g., polyurethane foam, melamine foam, etc.).

[0046] In some embodiments, the acoustic lining 410 is mechanically connected to the louvers 200 (e.g., bonded with an adhesive product, connected using magnets, etc.). In some embodiments, the acoustic lining 410 completely backs the louvers 200. In some embodiments, the acoustic lining 410 partially backs the louvers 200.

[0047] In some embodiments, each of the first leg 210 and the second leg 220 is a metal panel (e.g., aluminum, carbon steel, etc.). In this method, the louvers 200 reflect acoustic energy (i.e., noise) and air. Therefore, without the lining 230 and acoustic lining 410, the louvers 200 will reflect air and noise without substantially absorbing noise. Advantageously, the reflection of sound and air contributes to the regulation of airflow and the absorption of acoustic energy.

[0048] As shown in Figure 4, the upper surface 226 of the second leg 220 is not lined. In some embodiments, the upper surface 226 of the second leg 220 is exposed to the environment surrounding the enclosure 110. Advantageously, exposure of the upper surface 226 of the second leg 220 to the environment surrounding the enclosure 110 prevents water ingress and facilitates the reflection of both air and acoustic energy by the louvers 200. That is, the upper surface 226 of the second leg 220 reflects sound, the lower surface 228 of the second leg 220 includes an acoustic lining 410 for sound absorption, and the first leg 210 has two sides, each having sound-absorbing material (i.e., lining 230 on the lower surface 218 and acoustic lining 410 on the upper surface 216). This reflection of air and acoustic energy by each louver 200 contributes to the regulation of airflow and also contributes to the absorption of acoustic energy by reflecting acoustic energy toward other louvers 200 equipped with acoustic lining 410. This flow is further illustrated with reference to Figure 5.

[0049] In some embodiments, the first leg 210 and the second leg 220 may be in opposite positions such that the first leg 210 is connected to the enclosure 110 and extends at a substantially upward angle, while the second leg 220 is detachably connected to the first leg 210 at a certain angle. In this method, the lower surface 218 of the first leg 210 is provided with an acoustic lining 410, with the upper surface 216 of the first leg 210 exposed to the environment surrounding the enclosure, and the lower surface 228 of the second leg 220 is provided with a lining 230, with the upper surface 226 of the second leg 220 provided with an acoustic lining 410.

[0050] In some embodiments, as shown in Figure 4, the first leg 210 and the second leg 220 are formed integrally. In this method, the louver 200 is a single component instead of two components that are detachably connected (e.g., the first leg 210 and the second leg 220), and therefore does not have fasteners 240. That is, the louver 200 is a single component including the first leg 210 and the second leg 220, with the end of the first leg 210 extending from the end of the second leg 220.

[0051] Referring here to Figure 5, an airflow system 500 for the Genset 100 is shown. The airflow system 500 includes an enclosure 110, an electromechanism 130, an engine 140, a louver assembly 120, a blower 510, and a heat source 520. The blower 510 is an air-driven device configured to drive air from the environment surrounding the enclosure 110 into the enclosure in order to cool the electromechanism 130, the engine 140, and / or at least one of the other components housed in the enclosure 110. In some embodiments, the blower 510 may be a plurality of blowers positioned at different locations within the enclosure 110. In some embodiments, the blower 510 may be coupled to the engine 140 in proportion to the speed of the engine 140. In some embodiments, the blower 510 is driven separately from the engine 140 (e.g., via an electric blower motor).

[0052] The heat source 520 is a component that contributes to an increase in the temperature of any component housed in the enclosure 110. The heat source 520 may be, or include, any component of the engine 140, electromechanism 130, and / or enclosure 110 that experience an increase in temperature during operation. In some embodiments, the heat source 520 includes a plurality of components that contribute to an increase in the temperature of any number of components housed in the enclosure 110.

[0053] As shown in Figure 5, the louver assembly 120 defines multiple flow paths. Each flow path is defined by the louver angle 260 and the extension angle 270, in combination with the relationship between H1 250, H2 252, and H3 254, as described with reference to Figure 3. In some embodiments, the first path is the path through which air flows to the enclosure 110 along the first louver 200 and the second louver 200. As the air crosses the louver assembly 120 and enters the enclosure 110, it comes into contact with the upper surface 226 of the second leg 220 of the second louver 200 and is reflected (e.g., redirected) toward the lower surface 228 of the second leg 220 of the first louver 200, which includes the acoustic lining 410. The lower surface 228 of the second leg 220 of the first louver 200 reflects the air away substantially from the lower surface 228 of the second leg 220 of the first louver 200. In some embodiments, the reflection from the lower surface 228 of the second leg 220 of the first louver 200 directs the air toward the upper surface 226 of the second leg 220 of the second louver 200. In some embodiments, the reflection from the lower surface 228 of the second leg 220 of the first louver 200 directs the air toward the lower surface 218 of the first leg 210 of the first louver 200. As the air continues to flow toward the enclosure 110, it can be reflected several times in multiple directions between the first louver 200 and the second louver 200 before completely passing through the louver assembly 120 and finally entering the enclosure 110.

[0054] In some embodiments, the second path is the path through which acoustic energy flows out of the enclosure 110 along the first louvers 200 and the second louvers 200. As shown with reference to Figure 3, the first leg 210 of the first louvers 200 extends downward to the highest point of the second louvers 200. This relationship regulates the flow of sound as it exits the enclosure 110. As the noise flows outward, it first contacts the first leg 210 of the first louvers 200 and is reflected substantially downward toward the upper surface 216 of the first leg 210 of the first louvers 200, which includes the acoustic lining 410. The acoustic energy is then reflected toward the lower surface 218 of the first leg 210 of the first louvers 200, which includes the lining 230. As acoustic energy continues to flow out of the enclosure 110, it can be reflected several times in multiple directions between the first louver 200 and the second louver 200 before completely passing through the louver assembly 120 and finally leaving the enclosure 110. Reflections along the second path bring the noise energy into contact several times with the acoustic lining 410 of the second leg 220 and first leg 210 of the second louver 200, as well as the lining 230 of the first leg 210 of the first louver 200, thereby promoting the absorption of acoustic energy and thus promoting noise reduction. In other words, each side of the multiple louvers facing the second path is equipped with sound-absorbing material.

[0055] The various numerical values ​​in this specification are provided for reference purposes only. Unless otherwise indicated, all numbers representing quantities, parameters, and conditions of any kind used herein and in the claims are understood in all cases to be modified by the term “approximately.” Conversely, unless otherwise indicated, the parameters of numbers stated in the following specification and the appended claims are approximations. Any parameter of a number should be interpreted at least by taking into account the number of significant digits reported and applying the usual rounding techniques. The term “approximately,” when used before a numerical expression such as quantities and / or magnitudes that include a range, refers to an approximation that may vary by 10%, 5%, or 1% by + or -.

[0056] As will be understood by those skilled in the art, for any and all purposes, specifically in terms of providing a written description, all scopes disclosed herein also encompass any and all possible partial scopes and combinations thereof. Any listed scope can be readily recognized as sufficiently describing and enabling the same scope to be broken down into at least equal halves, thirds, quarters, fifths, tenths, and so on. As a non-limiting example, each scope considered herein can be readily broken down into partial scopes as previously considered. Finally, as will be understood by those skilled in the art, a scope includes each individual value within that scope.

[0057] The term “example” as used herein to describe various embodiments is intended to indicate that such embodiments are possible examples, descriptions, and / or illustrations of possible embodiments (such term is not intended to imply that such embodiments are necessarily special or best examples).

[0058] As used herein, the terms “substantial” and similar terms are intended to have a broad meaning, in accordance with the generally accepted use by those skilled in the art to which the subject matter of this disclosure relates. It should be understood by those skilled in the art considering this disclosure that these terms are intended to allow the description of specific features described and claimed to fall within the exact number provided, without limiting the scope of those features. Accordingly, these terms should be interpreted as indicating that a substantive or insignificant modification or substitution of the subject matter described and claimed (e.g., within ±5 percent of a given angle or other value) is deemed to fall within the scope of the invention as proposed in the appended claims.

[0059] Terms such as “connection” and “joining” as used herein mean joining two members directly or indirectly to one another. Such joining may be immovable (e.g., permanent) or movable (e.g., removable or detachable). Such joining may be achieved by forming two members and any additional intermediate members as a single, integrated structure, or by attaching two members, or two members and any additional intermediate members, to each other.

[0060] It is important to note that the structures and arrangements of the various example embodiments are for illustrative purposes only. Although only a few embodiments are described in detail in this disclosure, a person skilled in the art who studies this disclosure will readily understand that many modifications are possible (e.g., variations in the size, dimensions, structure, shape, and proportions of various elements, parameter values, mounting arrangements, material use, color, orientation, etc.) without significantly departing from the novel teachings and merits of the subject matter described herein. Other substitutions, modifications, changes, and omissions may be made in the design, operating conditions, and arrangements of the various example embodiments without departing from the scope of the embodiments described herein.

[0061] This specification includes many specific details of implementation, which should not be construed as limitations within the scope of any embodiment or claim, but rather as descriptions of features specific to the specific implementation of a particular embodiment. Certain features described herein in the context of another implementation may be implemented in combination in a single implementation. Conversely, various features described in a single context may be implemented separately in multiple implementations or in any suitable partial combination. Furthermore, features may be described as acting in a particular combination, and even as initially claimed, but one or more features from a claimed combination may, in some cases, be cut from the combination, and the claimed combination may be directed towards a partial combination or a variation of a partial combination. [Explanation of Symbols]

[0062] 100 Gen Set 110 Enclosure 112 Enclosure floor 114 Enclosure roof 116 Container side wall 118a, 118b, 118c, 118d, 118e Ventilation openings 120 Louver Assembly 130 Electrical machinery 140 engine 200 louvers 280 frames 210 First leg, short leg 212 Length of the first leg L1 214 Width of the first leg W1 216 Top 218 Bottom surface 220 Second leg, long leg 222 Length of the second leg L2 224 Width of the second leg W2 226 Top surface 228 Bottom surface 230 Lining 240 fasteners 250 First vertical length H1 252 Second vertical length H2 254 Third vertical length H3 260 louver angle 270 extension angle 272 Horizontal reference plane 280 frames 410 Acoustic Lining 500 Airflow System 510 Blower 520 Heat source

Claims

1. A generator and An enclosure that defines a space that is at least partially enclosed, wherein the generator is located in the space, A plurality of louvers extending from the enclosure to the space, wherein each of the plurality of louvers is Short legs, and, Longitudinal leg The short leg portion extends from the long leg portion at a certain angle to the long leg portion, Multiple louvers and Genset equipped with [unclear].

2. The Genset according to claim 1, further comprising a fastener configured to detachably connect the short leg portion to the long leg portion.

3. The Genset according to claim 1, further comprising a fastener that connects the longitudinal leg of a given louver among the plurality of louvers to the short leg of the given louver, and that allows the angle to be adjusted to a target angle in order to achieve a target pressure reduction value along the given louver.

4. The Genset according to claim 1, wherein the short leg portion extends from the long leg portion such that the angle is 60 degrees or more and 120 degrees or less.

5. The Genset according to claim 1, wherein the short leg portion is provided with a perforated acoustic lining to absorb acoustic energy.

6. The Genset according to claim 1, wherein the longitudinal leg portion has a lower side, and the lower side of the longitudinal leg portion is provided with an acoustic lining to absorb acoustic energy.

7. The Genset according to claim 1, wherein the longitudinal leg portion and the transverse leg portion are provided with an acoustic lining having a thickness of 10 mm or more and 100 mm or less.

8. The Genset according to claim 1, wherein the short leg portion and the long leg portion are sized such that the ratio of the length of the short leg portion to the length of the long leg portion is 0.3:1 or more and 0.8:1 or less.

9. The Genset according to claim 1, wherein the short legs are detachably connected to the long legs to enable adjustment of the noise level associated with the Genset to a target noise level, or adjustment of the temperature associated with the Genset to a target temperature.

10. The Genset according to claim 1, wherein the first end of the longitudinal leg is connected to the inner surface of the enclosure, and the first end of the short leg extends from the second end of the longitudinal leg.

11. The Genset according to claim 1, wherein the short leg portion and the long leg portion are formed integrally.

12. An enclosure for a Genset, A casing that defines a space that is at least partially enclosed, A plurality of openings formed on at least one side of the housing, A plurality of louvers connected to at least one side of the housing, wherein each of the plurality of louvers is The first leg, and, A second leg connected to the first leg at a certain angle. Equipped with multiple louvers and An enclosure equipped with [a specific feature / feature].

13. The enclosure according to claim 12, wherein each of the plurality of louvers is attached to the at least one side of the housing between the corresponding first openings of the plurality of openings.

14. The enclosure according to claim 12, wherein each of the plurality of louvers is provided with an acoustic lining on at least one of the first leg or the second leg to absorb acoustic energy.

15. The enclosure according to claim 12, wherein the louvers extend from the enclosure into the space at an upward angle with respect to at least one side of the enclosure.

16. The enclosure according to claim 12, wherein the ratio of the length of the first leg to the length of the second leg is 1:2 or more and 3:4 or less.

17. An airflow system for Genset, Enclosure and, A blower configured to drive air to the enclosure, A plurality of louvers connected to the enclosure, wherein each of the plurality of louvers is arranged on the louver assembly such that it is structured to form a first path for the air driven by the blower to be directed into the enclosure, and a second path for sound to be directed from inside the enclosure outwards in multiple directions along the louver assembly, and each of the first and second paths further includes defining paths that restrict direct movement in and out of the enclosure. An airflow system equipped with [the following features].

18. Each louver is equipped with a long leg and a short leg. One side of the longitudinal leg is configured to reflect sound, and the other side of the longitudinal leg contains a sound-absorbing material. The airflow system according to claim 17, wherein the short leg portion includes two sides, each having a sound-absorbing material.

19. The plurality of louvers comprises a first louver and a second louver located below the first louver, and each of the first louver and the second louver comprises a short leg portion and a long leg portion longer than the short leg portion. The airflow system according to claim 17, wherein a first vertical length between the highest point of the short leg portion of the first louver and the lowest point of the short leg portion of the first louver is greater than a second vertical length between the highest point of the short leg portion of the first louver and the highest point of the short leg portion of the second louver.

20. The airflow system according to claim 17, wherein each side of the plurality of louvers facing the second path is provided with sound-absorbing material.

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