CN102292530A - Air inlet duct for a genset enclosure - Google Patents

Air inlet duct for a genset enclosure Download PDF

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Publication number
CN102292530A
CN102292530A CN2008801326881A CN200880132688A CN102292530A CN 102292530 A CN102292530 A CN 102292530A CN 2008801326881 A CN2008801326881 A CN 2008801326881A CN 200880132688 A CN200880132688 A CN 200880132688A CN 102292530 A CN102292530 A CN 102292530A
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CN
China
Prior art keywords
intake duct
insulation board
sound
sealing cover
slit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2008801326881A
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Chinese (zh)
Inventor
G·S·凯莉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Caterpillar NI Ltd
Original Assignee
FG Wilson Engineering Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by FG Wilson Engineering Ltd filed Critical FG Wilson Engineering Ltd
Publication of CN102292530A publication Critical patent/CN102292530A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
    • F02B63/04—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B77/00—Component parts, details or accessories, not otherwise provided for
    • F02B77/11—Thermal or acoustic insulation
    • F02B77/13—Acoustic insulation

Abstract

An air inlet duct for a genset enclosure comprising: a body having a slot and a front border; and a baffle supported in the body between the slot and the front border, wherein the body and the baffle are arranged in a sound path between a sound source and an inlet to reflect a sound transmitted along the sound path. A method for reducing sound emission in a genset enclosure comprising: providing an air inlet duct having a body with a slot and a front border; positioning a baffle in the body between the slot and the front border; arranging the body and the baffle in a sound path between a sound source and an inlet to reflect a sound transmitted along the sound path.

Description

The intake duct that is used for the generator set sealing cover
Technical field
Present invention relates in general to be used for the sealing cover of Engine-Generator group.More particularly, the present invention relates in Engine-Generator group running the decay of the sound that sends from sealing cover.
Background technique
Engine-Generator or generator set may be the combinations of motor and generator.Two parts can be installed together and form individual machine.Generator set can provide electric power in the various places such as construction site or emergency response place.Usually, generator set can provide electric power for apartment, office building, hotel and hospital.
Generator set may be the device that carries of little individual or may be installed in bigger device on slideway or the trailer that this depends on the electric weight that requirement and place and special-purpose are required.Usually, generator set can be installed in removable guard shield or the sealing cover the lid.
In sealing cover, the heat that may need enough ventilations and cooling to dissipate and produced by power generator set component is so that the generator set reliable operation.Usually, the heat from generator set can dissipate by natural convection.For example, the heat that can dissipate from the radiator that motor is installed, this radiator can cool off by the air-flow that flows through the compartment in the sealing cover.Air-flow generally can be produced by radiator fan.
Except producing heat, motor, generator and exhaust also may produce noise or sound, obviously wish to keep these sound dischargings low as much as possible.Local authority also may be provided with the sound regulations, and the sound regulations may comprise the maximum acoustic emission limit set.Thereby, may be from the sound discharging of generator set sealing cover with operation in accordance with the law in the maximum acoustic restriction.The sound that sealing cover can stop or decay and send from motor or other power generator set components.For enough coolings are provided, may must in sealing cover, be provided for the opening that ventilates in the generator set sealing cover.Thereby sound may send by opening.
In order to reduce sound discharging, can reduce number of openings or size in the cabin by opening.Yet air-flow may be reduced to the level that cooling effect wherein also may reduce, thereby causes the temperature in the sealing cover to increase.This can influence any temperature-sensitive components unfriendly, and for example alternator, fuel injection systems are unified various electronic devices such as microprocessor.A solution increases air-flow by the fan that setting has high rotation speed.Yet the increase of fan speed can cause producing more noise from engine compartment.
Can also export by reduction fan speed or reduction motor and reduce sound.Yet this behavior meeting reduces the overall efficiency of machine.Can use the sound dampening device to reduce or avoid the transmission of sound.The generator set sealing cover can be lined with the sound dampening device, and this sound dampening device can absorb or reflect sound.
It is desirable to provides enough ventilations by the generator set sealing cover under the situation from the sound minimum emissions of generator set.
The present invention concentrates on one or more aspect of improving or overcoming prior art systems at least in part.
Summary of the invention
In first aspect, the invention describes a kind of intake duct that is used for the generator set sealing cover, this intake duct comprises: the body with slit and preceding border; And between described slit and described preceding border, being bearing in insulation board in the described body, wherein said body and described insulation board are arranged in the voice path between sound source and the inlet, the sound that transmits along this voice path with reflection.
In second aspect, the invention describes a kind of method that is used for reducing the sound discharging of generator set, this method comprises: the intake duct with body is set, and this body has slit and preceding border; Between described slit and described preceding border, insulation board is positioned in the described body; And described body and described insulation board be arranged in the voice path between sound source and the inlet sound that transmits along this voice path with reflection.
When reading the following description of various mode of executions with accompanying drawing, will know other features and advantages of the present invention.
Description of drawings
Read in conjunction with the drawings and will understand above-mentioned and other feature and advantage of the present invention more completely from the description of following various mode of executions, in the accompanying drawings:
Fig. 1 is the preceding isometric view according to intake duct of the present invention;
Fig. 2 is the back isometric view according to intake duct of the present invention;
Fig. 3 is the top isometric view that comprises according to the generator set sealing cover after the part assembling of intake duct of the present invention; And
Fig. 4 be according on the inlet that is installed in the generator set sealing cover of the present invention, along the sectional drawing of the intake duct of the line A1-A2 of Fig. 1.
Embodiment
Present invention relates in general to a kind of intake duct that is used for the generator set sealing cover.This intake duct can allow to ventilate or air flows by sealing cover, and feasible sound minimum emissions from power generator set component.
Fig. 1 illustrates intake duct 10, and this intake duct can comprise body 12, insulation board 14 and slit 16.
Body 12 can have base component 18, side member 20 and end member 22.Base component 18 can have any suitable shape, and can have any suitable dimensions corresponding with the inlet of generator set sealing cover.In one embodiment, base component 18 can form rectangle.
Side member 20 can form trapezoidal for example right-angled trapezium, and can be connected to the edge of base component 18 by one of parallel edge.In one embodiment, the longitudinal edge of the longitudinal edge of base component 18 and side member 20 can link to each other.Side member 20 can be vertical with respect to base component 18.Side member 20 can have edge 24, and this edge 24 can be relative with the edge that is connected to base component 18 and parallel.
Edge 24 can have complementary elements 26.Complementary elements 26 could be attached to the corresponding complementary elements in the generator set sealing cover.In one embodiment, complementary elements 26 can be public projection, and this public affairs projection is attached to the corresponding female cavity in the generator set sealing cover.In another embodiment, complementary elements 26 can be female cavity, and this mother's cavity is attached to the corresponding public projection in the generator set sealing cover.
End member 22 can be connected to base component 18 by the edge.End member 22 can be connected to side member 20 by opposed edges, described opposed edges the two can be adjacent to the edge that is connected to base portion 18.End member 22 can be connected to the declining edge of side member 20.End member 22 can have free edge 28 and can tilt with respect to base component 18.In one embodiment, end member 22 can tilt along the direction away from base component 18.End member 22 can form rectangle.
Relative end member 22 and body 12 can have end boundaries 30.End boundaries 30 can be formed by the end edge of base component 18 and side member 20.Adjacent end boundaries 30 can be preceding border 31.Preceding border 31 can be formed by the edge 24 of side member 20 and the free edge 28 of end member 22.In one embodiment, preceding border 31 can be formed by the complementary elements 26 of side member 20 and the free edge 28 of end member 22.
Body 12 can also have passage 32.Passage 32 can be formed by the surface of base component 18, side member 20 and end member 22.The degree of depth of passage 32 can equal the width of side member 20.In one embodiment, the degree of depth of passage 32 can be uniform along base component 18, and can be the length between the surface of edge 24 and base component 18.The degree of depth of passage 32 can reduce along end member 22 between base component 18 and the edge that free edge 28 links to each other, and can be the length between the surface of edge 24 and end member 22.
Insulation board 14 can be positioned in the passage 32.In one embodiment, insulation board 14 can medially be positioned in the passage 32, makes the longitudinal axis of base component 18 and insulation board 14 to align.Insulation board 14 can be equidistant with side member 20.Insulation board 14 can be bearing in the passage 32 by the carriage 34 that stretches out from the surface of base component 18, side member 20 or end member 22.In one embodiment, insulation board 14 can be by 34 supportings of two carriages.In another embodiment, carriage 34 stretches out from base component 18.Carriage 34 can be mounted on the surface or insulation board 14 of passage 32 by mechanical coupling or chemical bond.Carriage 34 can be mounted to two opposite ends of insulation board 14.
Insulation board 14 can form rectangle.In one embodiment, insulation board 14 can have hollow structure.Insulation board 14 can have and the corresponding length of the length of base component 18.In one embodiment, the length of insulation board 14 can be less than the length of base component 18.At one end, insulation board 14 can not extend beyond border 30.In the opposite end, insulation board 14 can not extend beyond the joining portion between body member 18 and the end member 22.
Body 12 and insulation board 14 can be formed by suitable material.In one embodiment, body 12 and insulation board 14 can by steel for example stainless steel form.
With reference to Fig. 2, base component 18 can carry slit 16.This slit 16 can be limited by the internal edge 36 of base component 18.In one embodiment, slit 16 can medially be positioned on the base component 18, makes the longitudinal axis of base component 18 and slit 16 to align.Slit 16 can be equidistant with side member 20.Passage 32 can be by the spatial communication outside slit 16 and the base component 18.At the two ends of slit 16, the opposite edges of base component 18 can form gap 38.Carriage 34 can be installed in 38 places, gap in passage 32.
Insulation board 14 can be positioned between slit 16 and the preceding border 31, and the longitudinal axis of wherein preceding border 31, slit 16 and insulation board 14 parallels.
In another embodiment, insulation board 14 can be with respect to slit 16 skews.Insulation board 14 can be located such that the longitudinal axis of insulation board 14 can be positioned at any side of the longitudinal axis of slit 16.In this arrangement, insulation board 14 or slit 16 can medially be located with respect to base component 18.
Insulation board 14 can be mounted to carriage 34, and can extend on slit 16.The size of slit 16 and position can be determined by the size and the position of insulation board 14.In one embodiment, the size of insulation board 14 can be bigger than the size of slit 16.The sidepiece of insulation board 14 can be overlapping with the internal edge 36 of the base component 18 that limits slit 16.
In one embodiment, a separating part can extend to the surface of base component 18 from a side of insulation board 14.In another embodiment, can between edge 36, place blade or band across slit 16.In another mode of execution, can in slit 16, lay matrix or grid.
In one embodiment, insulation board 14 can form a series of insulation boards.These insulation boards can tilt with respect to slit 16.These insulation boards can be located such that longitudinal axis can be parallel with the longitudinal axis of slit 16.These insulation boards can be located such that longitudinal axis can be perpendicular to the longitudinal axis of slit 16.These insulation boards can be installed on the slit 16 or be installed between the internal edge 36.
With reference to Fig. 3, generator set sealing cover 40 can comprise the embodiment of intake duct 10.Sealing cover 40 can be defined by wall 42.Wall 42 can be made by any suitable material, and can have and hold the required shape of generator set.
Wall 42 can have at least two openings and cross sealing cover 40 to allow air communication.First opening can be that inlet 44, the second openings can be outlets 46.Inlet 44 and outlet 46 can allow the inside and the sealing cover 40 atmosphere outside spatial communication of sealing cover 40.Described opening can allow air turnover sealing cover 40.Described opening can be formed on any wall 42, perhaps can be formed on any appropriate location on the wall 42 of sealing cover 40.Described opening can comprise the matrix or the grid in hole, passes through greater than the object of the size in hole preventing.
In one embodiment, inlet 44 and outlet 46 can be formed in a plurality of adjacent walls 42, and for example, inlet 44 can be formed in the bight of sealing cover, and this bight can be the joining portion of three walls 42.The inlet 44 that is formed on the wall 42 can limit single plane.The inlet that is formed on a plurality of adjacent walls 42 can limit a plurality of planes, and each plane is corresponding to a wall 42.
Air flue 48 can be formed on the inside of sealing cover 40 and can be sealed by wall 42.The ambient air of sealing cover 40 outsides can be along air flue 48 by 44 inside of flowing through sealing cover 40 that enter the mouth, and flow out by outlet 46.
Intake duct 10 can be positioned in the sealing cover 40 in air flue 48.This intake duct 10 can be positioned on the inlet 44.In one embodiment, preceding border 31 can form around the periphery of inlet 33, and the insulation board 14 in the passage 32 can be between the inlet 44 of slit 16 and sealing cover 40.
Intake duct 10 can be mounted to wall 42 removedly or rigidly at inlet 44 places.
In the generator set sealing cover 40 that assembles, by complementary elements 26 being attached to the complementary elements of generator set, preceding border 31 can be against the wall 42 of generator set 40.In one embodiment, preceding border 31 can form sealed attachment with wall 42.
In the generator set sealing cover 40 that assembles, border 30 can be against such wall 42, that is, this wall 42 is perpendicular with the wall 42 against the free edge 28 of the edge 24 of each side member 20 and end member 22.Border 30 can form with described wall 42 and be tightly connected.
In the generator set sealing cover 40 that assembles, passage 32 can be communicated with air flue 48.
Sealing cover 40 can be divided into several portions or section to receive the parts of generator set or generator set.Described section or part can be arranged in air flue 48, make the air that flows through air flue 48 flow through on the generator set that is arranged in described section or part.Generator set can comprise motor, generator and radiator, and radiator is used for the heat transmission to the air that flows through air flue 48.Generator set can comprise fan, and wherein the rotation of fan can be passed through air inlet 44 suction, and can force air to flow out by exporting 46, drives air circulation thus and flows through air flue 48.
In one embodiment, the section that can receive the motor/generator parts of sealing cover 40 or part 50 can be adjacent to inlet 44 or 44 the planes of entering the mouth.In another embodiment, the section of motor/generator or part 50 can be orthogonal to inlet 44 or 44 the plane of entering the mouth.Enter the mouth therein in 44 mode of executions that are formed on a plurality of adjacent walls 14, the section of motor/generator or part 50 can be orthogonal at least one plane of inlet 44.
Sound in the sealing cover 40 or noise source can be the parts of generator set, for example motor and/or generator.The sound that is produced by motor and/or generator can transmit and be passed to the zone of sealing cover 40 outsides from motor and/or master section 50 towards inlet 44 along voice path.This voice path can be to the route of the sound of 44 and so on the destination of for example entering the mouth, for example direct route from the source of for example motor and/or generator and so on.Can also reflect from the sound in this source and to leave wall 42 and advance towards inlet 44.
Intake duct 10 can be positioned at the inlet 44 and motor/generator 50 between voice path in.Insulation board 14 in the intake duct 10 can be arranged in voice path.Body 12 and insulation board 14 can reflect the sound of propagating along voice path.Body 12 and insulation board 14 can prevent from directly to be passed to inlet 44 from the sound in source.In one embodiment, body 12 and insulation board 14 can be with the sound reflection of advancing along voice path in passage 32 or sealing covers 40.
With reference to Fig. 4, intake duct 10 can also have the lip 52 that can partly limit slit 16-location along this internal edge of internal edge 36-of base component 18.In one embodiment, lip 52 can be mounted to vertical internal edge 36.Each lip 52 can extend along whole vertical internal edge 36.Lip 52 can be installed by mechanical coupling or by chemical bond.
Be in operation, radiator fan can make air circulation pass through air flue 48.The ambient air of sealing cover 40 outsides can flow through inlet 44.The air that flows through intake duct 10 can be by solid arrow 54 expressions.44 ambient airs that enter can flow in the passage 32 of this intake duct 10 by entering the mouth.Air can flow around insulation board 14, and can pass through slit 16 flow pass 32.The air that flows out slit 16 can enter air flue 48.Air can flow through air flue 48 and flow on radiator, and radiator can transfer heat to flow air.Heated air can flow out sealing cover 40 by outlet 46 from radiator.
Produce or can transmit towards inlet 44 from motor and/or generator by the sound of wall 42 reflections.Base component 18 can reflect the part sound that transmits to inlet 44 by air flue 48.Sound can be by in slit 16 transmission and the inlet passage 32.Fig. 4 illustrates sound in the inlet passage 32 by the arrow with dotted line 56.Insulation board 14 can be positioned in the passage 32 between the inlet 44 of slit 16 and sealing cover 10.Insulation board 14 can reflect the sound by slit 16 reflections.The sound that is transmitted the edge that surpasses insulation board 14 can be by side member 20 reflections.Can be by intake duct 10 restrictions by motor and/or generator in the discharging of the sound of its run duration generation.
Lip 52 can be caught water droplet or other pollutants that the air by inlet passage 32 carries.Captive water droplet can slide along lip 52, and can drop on the end member 22.The end member 22 that tilts can so that water discharge from intake duct 10.
Each surface of intake duct 10 can be lined with sound-absorbing foam, reflects from the surface reflection of intake duct 10 and by inlet aperture plate 44 to prevent noise.These surfaces can be sidewall 20, base component 18, insulation board 14 and end member 22.
Those skilled in the art will recognize that above-mentioned mode of execution can be revised or make up to obtain intake duct 10 of the present invention.
Industrial usability
The invention describes and be used to control from the sound of sound source to the transmission sound in the zone of generator set sealing cover 40 outsides and be used to control pollutant and enter intake duct 10 in the sealing cover 40.
Can be with from the sound reflection in source inlet 44 according to intake duct 10 of the present invention away from sealing cover 40.This intake duct 10 can reflect the sound of advancing to the transmission voice path of inlet 44 along from sound source, and can allow by through the air flows of air flue 48 sealing cover 40 being ventilated and radiator being cooled off.
Intake duct 10 according to the present invention can be suitable for the generator set sealing cover.
Can know the industrial usability of intake duct described herein 10 from the explanation of front.
Thereby, the present invention includes referenced subject matter content in the claims by all modifications and equivalence that applicable law allowed.And, described invention contain said elements its any combination in might modification, unless this paper has explanation in addition.
Although drawings attached mark after the technical characteristics of mentioning in the claims, but the effect that comprises these reference characters only is in order to increase the intelligibility of claim, thereby, whether exist these reference characters to the scope of above-mentioned technical characteristics or any claim element without any influence.
Those of skill in the art will recognize, can implement described invention with other concrete forms under the situation that does not break away from described invention or its inner characteristic.Therefore, above-mentioned mode of execution all should be considered to schematically in all respects, rather than limits scope of invention described herein.Therefore scope of the present invention is defined by the following claims, rather than is limited by foregoing description, falls into the implication of claim and the institute in the scope and changes so all be intended to and comprise in the claims.

Claims (13)

1. intake duct (10) that is used for generator set sealing cover (40), this intake duct comprises:
Body (12), this body have slit (16) and preceding border (31); And
Insulation board (14), this insulation board is bearing in this body (12) between described slit (16) and described preceding border (31), wherein, this body (12) and insulation board (14) are arranged in the voice path between sound source and the inlet (44), the sound that transmits along this voice path with reflection.
2. intake duct according to claim 1 (10) is characterized in that, described intake duct (10) is stacked on the described inlet (44).
3. according to claim 1 or 2 described intake ducts (10), it is characterized in that the longitudinal axis of the longitudinal axis of described insulation board (14) and described slit (16) aligns.
4. according to claim 1,2 or 3 described intake ducts (10), it is characterized in that described body (12) comprises complementary elements (26), this complementary elements is used to be attached to the corresponding complementary elements on the wall (42) of described generator set sealing cover.
5. intake duct according to claim 4 (10) is characterized in that, described complementary elements (26) is attached to described corresponding complementary elements removedly.
6. according to each described intake duct (10) in the aforementioned claim, it is characterized in that described body (12) comprises the end member (22) of inclination.
7. according to each described intake duct (10) in the aforementioned claim, it is characterized in that described body comprises at least one lip that is attached to internal edge (36).
8. according to each described intake duct (10) in the aforementioned claim, it is characterized in that described insulation board (14) is supported removedly.
9. according to each described intake duct (10) in the aforementioned claim, it is characterized in that described insulation board (14) and described slit (16) medially are positioned on the described body (12).
10. generator set sealing cover, this generator set sealing cover comprises according to each described intake duct (10) in the aforementioned claim.
11. a method that is used for reducing the sound discharging of generator set sealing cover, this method comprises:
Intake duct (10) is set, and this intake duct has body (12), and this body has slit (16) and preceding border (31);
Between described slit (16) and described preceding border (31), in described body (12), lay insulation board (14); And
Described body (12) and described insulation board (14) are arranged in the voice path between sound source and the inlet (44) sound that transmits along this voice path with reflection.
12. method according to claim 11, this method also comprise described intake duct (10) is stacked in step on the described inlet (44).
13. according to claim 11 or 12 described methods, it is characterized in that, make the longitudinal axis alignment of the longitudinal axis and the described slit (16) of described insulation board (14).
CN2008801326881A 2008-11-27 2008-11-27 Air inlet duct for a genset enclosure Pending CN102292530A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2008/066304 WO2010060482A1 (en) 2008-11-27 2008-11-27 Air inlet duct for a genset enclosure

Publications (1)

Publication Number Publication Date
CN102292530A true CN102292530A (en) 2011-12-21

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CN2008801326881A Pending CN102292530A (en) 2008-11-27 2008-11-27 Air inlet duct for a genset enclosure

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WO (1) WO2010060482A1 (en)

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JP5637361B2 (en) * 2010-06-16 2014-12-10 アイシン精機株式会社 Outdoor power generator
US8881694B2 (en) * 2011-12-12 2014-11-11 Cummins Power Generation Ip, Inc. Generator set assembly with baffle
US8872361B2 (en) 2012-01-25 2014-10-28 Briggs & Stratton Corporation Standby generators including compressed fiberglass components
US9641043B1 (en) 2015-03-27 2017-05-02 Timothy David Leedy Portable sound attenuating device and related methods
US10309302B2 (en) 2016-03-09 2019-06-04 Kohler Co. Noise suppression system
CN107246318B (en) * 2017-06-27 2023-08-18 雅柯斯电力科技（中国）有限公司 Noise reduction cover of generator set
US11705779B2 (en) 2020-06-03 2023-07-18 Briggs & Stratton, Llc Inverter generator
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Application publication date: 20111221