WO2012140590A2 - Boîtier pour dispositifs du type ensembles de production de courant électrique, moteurs à combustion interne, compresseurs d'air et similaire à isolation acoustique élevée - Google Patents

Boîtier pour dispositifs du type ensembles de production de courant électrique, moteurs à combustion interne, compresseurs d'air et similaire à isolation acoustique élevée Download PDF

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Publication number
WO2012140590A2
WO2012140590A2 PCT/IB2012/051790 IB2012051790W WO2012140590A2 WO 2012140590 A2 WO2012140590 A2 WO 2012140590A2 IB 2012051790 W IB2012051790 W IB 2012051790W WO 2012140590 A2 WO2012140590 A2 WO 2012140590A2
Authority
WO
WIPO (PCT)
Prior art keywords
enclosure
devices according
type
elastic means
devices
Prior art date
Application number
PCT/IB2012/051790
Other languages
English (en)
Other versions
WO2012140590A3 (fr
Inventor
Angelo D'anzi
Original Assignee
Avanthia S.R.L.
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 Avanthia S.R.L. filed Critical Avanthia S.R.L.
Priority to EP12720611.8A priority Critical patent/EP2697793A2/fr
Publication of WO2012140590A2 publication Critical patent/WO2012140590A2/fr
Publication of WO2012140590A3 publication Critical patent/WO2012140590A3/fr

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/8218—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only soundproof enclosures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/0027—Pulsation and noise damping means
    • F04B39/0033—Pulsation and noise damping means with encapsulations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/0027—Pulsation and noise damping means
    • F04B39/0044—Pulsation and noise damping means with vibration damping supports
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/001—Noise damping
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/001—Noise damping
    • F04B53/002—Noise damping by encapsulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/001—Noise damping
    • F04B53/003—Noise damping by damping supports

Definitions

  • the present invention relates to an enclosure for devices of the type of electric power generating sets, current generators, internal combustion engines, air compressors and the like with high acoustic insulation.
  • the acoustic insulation of devices such as electric power generating sets, current generators, internal combustion engines, air compressors and the like is provided by placing them in an enclosure which is lined internally with panels, plates (flat, studded, pyramid-like), layers of various kinds or the like, made of substantially sound-absorbing material.
  • the sound-absorbing material that is generally used is polymeric material, composite material and the like.
  • This solution sometimes entails the disadvantage of ensuring an acoustic insulation that is insufficient to meet some specific requirements and therefore is not suitable to be used in applications requiring limited outward sound dispersion.
  • expanded polymers following exposure to atmospheric agents, tend to break down, becoming fragile and pulverizing, especially in the presence of mechanical vibrations.
  • the aim of the present invention is to solve the problems described above, by providing an enclosure for devices of the type of electric power generating sets, current generators, internal combustion engines, air compressors and the like which ensure high acoustic insulation.
  • an object of the invention is to provide an enclosure for devices of the type of electric power generating sets, current generators, internal combustion engines, air compressors and the like with high acoustic insulation that has a limited tendency to degrade over time.
  • Another object of the present invention is to provide an enclosure for devices of the type of electric power generating sets, current generators, internal combustion engines, air compressors and the like with high acoustic insulation that is at low cost, relatively simple to provide in practice and safe in application.
  • the present enclosure for devices of the type of electric power generating sets, current generators, internal combustion engines, air compressors and the like with high acoustic insulation, comprising walls which delimit an internal compartment, said compartment being intended to contain at least one mechanical device and the like, characterized in that at least one of said walls is composed of at least two laminas, said first and second laminas defining a closed interspace, a predefined quantity of individual small elements having a preferably granular, chip-like, fibrous, powder-like shape, adapted to attenuate the transmission of sound waves through said enclosure, being arranged inside said interspace.
  • Figure 1 is a sectional view of the enclosure according to the invention, taken along its vertical plane.
  • the reference numeral 1 generally designates an enclosure for devices of the type of electric power generating sets, current generators, internal combustion engines, air compressors and the like with high acoustic insulation, which comprises walls 2, which delimit an internal compartment 3 which is designed to contain at least one mechanical device 4 and the like.
  • At least one of these walls 2 is composed of at least two laminas, a first one 5 and a second one 6.
  • Said first lamina 5 and said second lamina 6 define a closed interspace 7.
  • a predefined quantity, suitable to fill it completely or partially, of individual small elements 8 is provided that allow to attenuate the transmission of sound waves through said enclosure 1.
  • These individual elements 8 can have a different shape depending on the different insulation that one wishes to obtain; in particular, they can have a granular, chip-like, fibrous or powder-like shape.
  • the laminas 5 and 6 that constitute the walls 2 of the enclosure 1 can be more than two, forming a plurality of interspaces 7, interposed between them, in which said individual elements 8 are to be arranged.
  • At least one elastic means 9 is interposed between at least one inner portion of the enclosure 1 and at least one corresponding part of the device 4 and is designed to stably support said device 4.
  • the elastic means 9 is meant to prevent the transmission to the enclosure 1 of the vibrations generated by the device 4 during its operation, said vibrations causing a further increase in the generated noise.
  • the elastic means 9 is installed directly on the walls 2 that constitute the enclosure 1 or, as an alternative, if the walls are supported by a frame, it is installed on the frame itself, preventing the vibrations from being transmitted also to the walls that cover it.
  • the device 4 is suspended elastically, inside the enclosure 1 , by way of the elastic means 9, which prevent the transmission of the vibrations thereto.
  • the individual elements 8, arranged inside the interspace 7, are made of a material selected preferably among sand of any type and particle size, gravel of any type and size, grit of any type and size, sawdust and wood chips and the like of any size, polymeric granules of any type and size and combinations thereof.
  • the interspace 7 can be filled conveniently with sand or, as an alternative, with sand combined with other substances, so that it absorbs partly or completely the sound waves produced by said device 4.
  • the elastic means 9 is constituted by at least one axially acting spring 10, selected preferably between gas-filled dampers and metal springs.
  • the elastic means 9 is constituted by a tensioned portion of a material of the type of an elastomer selected preferably among rubber, polymers and the like.
  • the elastic means 9 is constituted by at least one spring, in parallel to which a damper is provided of a type selected preferably among pneumatic, electrically actuated and hydraulic, the assembly of the spring and of the damper constituting a shock absorber for the oscillations produced by the device 4.
  • the enclosure 1 is made of a material selected preferably among metal, wood, polymers and the like.
  • the possibility is not excluded to cover internally at least one of the laminas 5 and 6 of the enclosure 1 with at least one layer of sound- absorbing material, the inner faces of which can be preferably corrugated or studded, in order to increase the absorption and attenuation of the sound waves produced by the device 4 during its operation and hinder their transfer to the outside of the enclosure 1.
  • the elastic means 9 are four, three being arranged, with respect to said device 4, for example at the three directions defined respectively by the three Cartesian axes, and one being arranged in a fourth different direction, which is substantially oblique with respect to the directions of the three Cartesian axes, in order to balance the vibrations generated by the device 4.
  • the device 4 when it starts operating, begins to emit sound waves and generates vibrations.
  • the generated sound waves once the first lamina 5 of the enclosure 1 has been passed, enter the interspace 7, where they are absorbed and attenuated thanks to the presence of the individual small elements 8 arranged internally with a random distribution.
  • the vibrations produced by the device 4 are damped thanks to the action of the elastic means 9 arranged inside the enclosure 1 , which, by balancing the stresses produced by the device 4, prevent them from affecting the enclosure 7, generating additional noise.
  • any presence of the sound-absorbing material on the laminas 5 and 6 can further increase the damping of the sound waves.
  • the enclosure 1 for devices of the type of electric power generating sets, current generators, internal combustion engines, air compressors and the like fully achieves the intended aim, since it ensures high acoustic insulation.
  • the presence of the interspace 7 and of the material contained therein in fact ensure that the sound waves are not transmitted directly from the inside of the enclosure 1 toward the outside.
  • the presence of the at least one elastic means 9 prevents the transmission of the vibrations to the enclosure 1 , which by vibrating would increase the perceived noise caused by the operation of the device 4.
  • a further advantage of the enclosure 1 according to the invention is that it has a reduced sensitivity to environmental and climate variations.
  • the material contained in the interspace 7, such as for example sand, following exposure to atmospheric agents, does not alter its physical characteristics, breaking down or losing its capacity to absorb sound waves, even in the presence of vibrations and therefore of mechanical stresses.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Architecture (AREA)
  • Multimedia (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Compressor (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

La présente invention concerne un boîtier pour dispositifs du type ensembles de production de courant électrique, génératrices de courant, moteurs à combustion interne, compresseurs d'air et similaire à isolation acoustique élevée, comprenant des parois (2) délimitant un compartiment intérieur (3) destiné à contenir au moins un dispositif mécanique (4) et similaire. Au moins une des parois (2) est composée d'au moins deux feuilles (5, 6), une première feuille (5) et une seconde feuille (6). La première feuille (5) et la seconde feuille (6) définissent un intervalle fermé (7). A l'intérieur de l'intervalle (7) est fournie une quantité prédéfinie, adaptée à la remplir entièrement ou partiellement de petits éléments individuels (8), permettant d'atténuer la transmission d'ondes acoustiques à travers le boîtier (1). Les éléments individuels (8) peuvent présenter une forme différente en fonction de l'isolation différente que l'on souhaite obtenir ; en particulier, ils peuvent présenter une forme granulée, de type copeaux, fibreuse ou poudreuse.
PCT/IB2012/051790 2011-04-14 2012-04-12 Boîtier pour dispositifs du type ensembles de production de courant électrique, moteurs à combustion interne, compresseurs d'air et similaire à isolation acoustique élevée WO2012140590A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12720611.8A EP2697793A2 (fr) 2011-04-14 2012-04-12 Boîtier pour dispositifs du type ensembles de production de courant électrique, moteurs à combustion interne, compresseurs d'air et similaire à isolation acoustique élevée

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000196A ITBO20110196A1 (it) 2011-04-14 2011-04-14 L'involucro di dispositivi del tipo di gruppi elettrogeni, motori endotermici compressori d'aria e simili ad elevato isolamento acustico
ITBO2011A000196 2011-04-14

Publications (2)

Publication Number Publication Date
WO2012140590A2 true WO2012140590A2 (fr) 2012-10-18
WO2012140590A3 WO2012140590A3 (fr) 2013-06-20

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2012/051790 WO2012140590A2 (fr) 2011-04-14 2012-04-12 Boîtier pour dispositifs du type ensembles de production de courant électrique, moteurs à combustion interne, compresseurs d'air et similaire à isolation acoustique élevée

Country Status (3)

Country Link
EP (1) EP2697793A2 (fr)
IT (1) ITBO20110196A1 (fr)
WO (1) WO2012140590A2 (fr)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160052021A1 (en) * 2013-04-04 2016-02-25 Infrafone Ab Vibration damper for reducing vibrations of a low frequency sound generator
CN107869461A (zh) * 2016-09-28 2018-04-03 比亚迪股份有限公司 电机油泵总成、转向系统和车辆
CN107869443A (zh) * 2016-09-28 2018-04-03 比亚迪股份有限公司 电机油泵总成、转向系统和车辆
CN107869438A (zh) * 2016-09-28 2018-04-03 比亚迪股份有限公司 电机油泵总成、转向系统和车辆
CN107869430A (zh) * 2016-09-28 2018-04-03 比亚迪股份有限公司 电机油泵总成、转向系统和车辆
CN107869442A (zh) * 2016-09-28 2018-04-03 比亚迪股份有限公司 电机油泵总成、转向系统和车辆
CN107869444A (zh) * 2016-09-28 2018-04-03 比亚迪股份有限公司 电机油泵总成、转向系统和车辆
CN107869445A (zh) * 2016-09-28 2018-04-03 比亚迪股份有限公司 电机油泵总成、转向系统和车辆
CN107869437A (zh) * 2016-09-28 2018-04-03 比亚迪股份有限公司 电机油泵总成、转向系统和车辆
CN107869432A (zh) * 2016-09-28 2018-04-03 比亚迪股份有限公司 电机油泵总成、转向系统和车辆
CN108005895A (zh) * 2016-12-01 2018-05-08 佛山市顺德区美的饮水机制造有限公司 增压泵、净水机及热水器
CN108245781A (zh) * 2018-01-24 2018-07-06 天津市赛盟医疗科技有限公司 一种带有振动功能的治疗探头
CN108488063A (zh) * 2018-03-13 2018-09-04 安徽乐昌气动流体设备科技有限公司 一种气动隔膜泵的减震装置
EP3677777A4 (fr) * 2017-08-28 2020-08-19 Panasonic Intellectual Property Management Co., Ltd. Structure support élastique
US11035386B2 (en) 2016-09-28 2021-06-15 Byd Company Limited Motor oil pump assembly, steering system, and vehicle
WO2022000903A1 (fr) * 2020-07-03 2022-01-06 苏州众创阳光新能源科技有限公司 Pompe à vide dotée d'un bon effet de réduction du bruit

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Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160052021A1 (en) * 2013-04-04 2016-02-25 Infrafone Ab Vibration damper for reducing vibrations of a low frequency sound generator
US9718099B2 (en) * 2013-04-04 2017-08-01 Infrafone Ab Vibration damper for reducing vibrations of a low frequency sound generator
CN107869438B (zh) * 2016-09-28 2019-06-25 比亚迪股份有限公司 电机油泵总成、转向系统和车辆
CN107869442A (zh) * 2016-09-28 2018-04-03 比亚迪股份有限公司 电机油泵总成、转向系统和车辆
US11035386B2 (en) 2016-09-28 2021-06-15 Byd Company Limited Motor oil pump assembly, steering system, and vehicle
CN107869430A (zh) * 2016-09-28 2018-04-03 比亚迪股份有限公司 电机油泵总成、转向系统和车辆
CN107869437B (zh) * 2016-09-28 2019-06-21 比亚迪股份有限公司 电机油泵总成、转向系统和车辆
CN107869444A (zh) * 2016-09-28 2018-04-03 比亚迪股份有限公司 电机油泵总成、转向系统和车辆
CN107869445A (zh) * 2016-09-28 2018-04-03 比亚迪股份有限公司 电机油泵总成、转向系统和车辆
CN107869430B (zh) * 2016-09-28 2019-06-21 比亚迪股份有限公司 电机油泵总成、转向系统和车辆
CN107869432A (zh) * 2016-09-28 2018-04-03 比亚迪股份有限公司 电机油泵总成、转向系统和车辆
CN107869443B (zh) * 2016-09-28 2019-07-26 比亚迪股份有限公司 电机油泵总成、转向系统和车辆
CN107869444B (zh) * 2016-09-28 2019-07-26 比亚迪股份有限公司 电机油泵总成、转向系统和车辆
CN107869461B (zh) * 2016-09-28 2019-06-25 比亚迪股份有限公司 电机油泵总成、转向系统和车辆
CN107869438A (zh) * 2016-09-28 2018-04-03 比亚迪股份有限公司 电机油泵总成、转向系统和车辆
CN107869443A (zh) * 2016-09-28 2018-04-03 比亚迪股份有限公司 电机油泵总成、转向系统和车辆
CN107869437A (zh) * 2016-09-28 2018-04-03 比亚迪股份有限公司 电机油泵总成、转向系统和车辆
CN107869442B (zh) * 2016-09-28 2019-06-25 比亚迪股份有限公司 电机油泵总成、转向系统和车辆
CN107869461A (zh) * 2016-09-28 2018-04-03 比亚迪股份有限公司 电机油泵总成、转向系统和车辆
CN107869445B (zh) * 2016-09-28 2019-06-25 比亚迪股份有限公司 电机油泵总成、转向系统和车辆
CN107869432B (zh) * 2016-09-28 2019-06-25 比亚迪股份有限公司 电机油泵总成、转向系统和车辆
CN108005895A (zh) * 2016-12-01 2018-05-08 佛山市顺德区美的饮水机制造有限公司 增压泵、净水机及热水器
EP3677777A4 (fr) * 2017-08-28 2020-08-19 Panasonic Intellectual Property Management Co., Ltd. Structure support élastique
CN108245781A (zh) * 2018-01-24 2018-07-06 天津市赛盟医疗科技有限公司 一种带有振动功能的治疗探头
CN108488063A (zh) * 2018-03-13 2018-09-04 安徽乐昌气动流体设备科技有限公司 一种气动隔膜泵的减震装置
CN108488063B (zh) * 2018-03-13 2019-04-16 安徽乐昌气动流体设备科技有限公司 一种气动隔膜泵的减震装置
WO2022000903A1 (fr) * 2020-07-03 2022-01-06 苏州众创阳光新能源科技有限公司 Pompe à vide dotée d'un bon effet de réduction du bruit

Also Published As

Publication number Publication date
WO2012140590A3 (fr) 2013-06-20
EP2697793A2 (fr) 2014-02-19
ITBO20110196A1 (it) 2012-10-15

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