Matches 1 - 50 out of 259 1 2 3 4 5 6 >
Match Document Document Title
7621372 Duct and process for producing the same  
An object of the present invention is to provide a duct having a simple structure and capable of suppressing occurrences of an intake noise and a dropping-out of an adsorbent, and to a process for...
7584822 Noise level reduction of sparger assemblies  
A method results in a system configuration wherein positioning a plurality of spargers reduces noise levels caused by fluid passing through the plurality of spargers. The method includes providing...
7581619 Movable baffle columns for use with air handling units  
A sound-baffling arrangement for use in conjunction with an air-handling unit. One or more sound baffle columns are mounted for rolling or sliding movement within the interior of the air handling...
7549507 Duct wall structure  
The invention relates to an inner heat insulating and inner sound insulating structure of an HRSG duct wall in which a turbine combustion high temperature and high velocity gas whose temperature is...
7546898 Noise reduction with resonatance chamber  
An apparatus comprises a housing comprising an air inlet, an air outlet and a divider that divides the housing into first and second air passages. The housing comprises a resonance chamber for each...
7516815 Arrangement for the generation of sonic fields of a specific modal composition  
A device for simulating sound produced by certain equipment, for example a rotor-stator arrangement of a turbomachine, or for generation of opposing sound fields for active sound control, including...
7503426 Reflecting plate type silencer pipe  
A reflecting plate type silencer pipe including a reflecting plate is provided for reducing a dominant frequency noise passing through a pipeline. Sound waves propagated in the pipeline as a...
7484590 Fuel cell system with muffler  
A fuel cell system with a muffler to reduce noise generated while supplying air to a fuel cells disclosed. One embodiment of the fuel cell system includes an air feeder to supply air; an electric...
7434657 Acoustic foam sound reducer for vacuum power unit  
A power unit for an in-wall vacuum cleaning system has a first compartment which contains a motor for producing a vacuum at remote wand receptacles and a second compartment for separating and...
7334662 Equipment enclosure acoustical door with low impedance distributed air flow  
An acoustic door for an equipment enclosure, such as a rack mount cabinet, also provides a low impedance air flow uniformly delivered across the cabinet opening. A pair of metal panels, with...
7329456 Method of fabrication of an acoustical substrate into a three dimensional product  
A method of forming a box-like acoustical substrate is provided. Portions of an acoustical substrate having a decorative surface are compressed to form a flange, a first compressed region, a second...
7314113 Acoustic absorbers for use with computer cabinet fans and other cooling systems  
Systems and methods for absorbing acoustic noise generated by computer cabinet cooling fans are described herein. In one embodiment, an acoustic absorber for use with a fan carried by a computer...
7258196 Noise attenuator with laterally moving baffles  
A silencer or sound attenuator for gas flows that makes use of noise baffles is provided with a lateral movement mechanism which allows the baffles to be moved perpendicular to the direction of the...
7185736 Aerodynamic noise abatement device and method for air-cooled condensing systems  
The noise abatement device and method described herein makes known an apparatus and method for reducing the aerodynamic resistance presented by a fluid pressure reduction device in a large duct....
7161801 Commutate silencer of computer system  
A commutate silencer of a computer system is described. The commutate silencer of the computer system is installed at the back end of the computer system, and comprises a shield device, a commutate...
7111831 Sound attenuation apparatus and method  
A cooling tower sound attenuation apparatus having at least one sheet. The sheet has an upper and lower end and a first substantially straight region and a second region that is connected to the...
7093589 Apparatus for increasing induction air flow rate to a turbocharger  
A system that enables enhanced air flow to the air intake of an internal combustion engine having a turbocharger is disclosed. The air induction system includes a plenum or expansion chamber...
7086857 Use of thermal insulation for noise abatement  
In a residential furnace having a layered insulation material on the inner walls of the heat exchanger compartment, the inner aluminum foil layer has a plurality of holes formed therein in order to...
7032383 Connecting duct for fluid compression system  
A connecting duct for providing a fluid pathway between an outlet of a low pressure compressor and an inlet of a high pressure compressor is provided. The connecting duct includes a main body that...
6981386 Silencing equipment for an air-cooling assembly  
Silencing equipment is provided for an air-cooling assembly in a large off-road vehicle having wheels, traction motors for the wheels that operate in a motoring mode to propel the vehicle and a...
6971474 Air guiding element, especially an air guiding channel for a motor vehicle  
An air conduction element ( 1 ), particularly an air conduction channel for a motor vehicle, having a reverberant channel body ( 2 ) manufactured from plastic, which has at least one wall region...
6968923 Reduced noise valve stack connection  
Disclosed is a silencer system configured to allow for thermal growth thereof while attenuating noise created by expansion of high-pressure fluid flowing therethrough. The silencer system comprises...
6953104 Muffin fan hush hood  
A low noise method and apparatus with the apparatus including a hood for mounting over an exhaust outlet duct to capture a fluid stream and then redirect the fluid stream to a fluid outlet in the...
6945355 Muffler arrangement for a flow duct  
A muffler arrangement includes muffler elements arranged in rows which are oriented in each case transversely to a direction of flow. The muffler elements themselves are oriented in each case...
6938727 Integrated engine compartment component and air intake system  
A fan shroud includes a fan shroud portion having a surface including an aperture. A cooling fan is supported proximate to the aperture for permitting air flow through the fan shroud from the...
6920959 Inlet and outlet duct units for air supply fan  
Duct units for delivery of air to an air supply fan and for connecting this fan to an air heater unit are disclosed. The duct unit for delivering air in one version has a narrow first section, a...
6892851 Acoustic attenuator  
An acoustic attenuator includes an intake air duct having an intake air duct opening leading to an outside environment and a blower fan opening leading to a blower fan. Air is drawn through the...
6880813 Outlet silencer for cooling tower, evaporator cooler or condenser  
A sound attenuating apparatus for mounting on a heat exchanging apparatus such as a cooling tower, this apparatus having an attenuator housing with vertically extending sides, a top cover and a...
6851514 Outlet silencer and heat recovery structures for gas turbine  
A sound attenuating duct unit suitable for connection to an outlet of a gas turbine and an improved heat recovery apparatus for use with such a turbine are disclosed. The former unit includes a...
6839439 Method and apparatus for active noise control in an air induction system  
An air induction system for an internal combustion engine utilizes localized heat generation to produce a desired acoustic profile that attenuates noise propagated through the air induction system....
6814182 Air-diffusion panel for a motor vehicle  
Air-diffusion panel for a motor vehicle including at least one air inlet and at least one air duct in communication with the said air inlet and air-distribution means, characterised in that it...
6802690 Outlet silencer structures for turbine  
Both air duct inlet silencers and air duct outlet silencers for use with a stationary gas turbine are disclosed. The sound attenuating duct unit suitable for connecting to an outlet of a stationary...
6802386 Method of muffling the noise of successive components as well as a noise absorber for successive components  
A method of muffling the noise of successive components and a corresponding noise absorber is provided. An air cushion is placed between the two components which are spaced away from one another at...
6772858 Device for attenuating noise in a tube for transporting gas  
The device for attenuation of noise in a tube intended to transport a gas includes a branch tube having two ends which open into said tube by two connections, and at least one tube referred to as...
6719078 Ventilable silencer unit for vehicles  
A box type silencer unit includes a ventilation portion, a silencer portion adjacent to the ventilation portion, and a dividing partition located between the ventilation portion and the silencer...
6715580 Gas flow-through line with sound absorption effect  
The present invention relates to a gas flow-through line with a sound absorption effect. Thereby the wall ( 5 ) of the line ( 1 ) has through-going perforations ( 2 ) having a diameter of less than...
6705428 Exhaust gas system with helmholtz resonator  
A Helmholtz resonator ( 24, 24′, 24″, 24 a ), which is screened in an acoustically transparent manner from the flow (S) by means of an absorption noise suppressor ( 36 ) is located on the flow...
6702061 Environmentally protected microphone for an active noise control system  
An air introduction system ( 10 ) includes an active noise control system ( 22 ) having an environmentally protected microphone ( 24 ). A microphone support structure ( 26 ) defines a louvered cage...
6688424 Noise absorbing device and device for taking air into engine room of a construction machine  
An engine noise reduction device to reduce sound output from an engine compartment and supply cooling air to the engine compartment to increase cooling efficiency and prevent engine and component...
6655165 Air conditioner with power recovery device having a sound suppression device  
An air conditioner has an evaporator, a main compressor, a condenser, and an energy recovery device. The condenser receives a compressed refrigerant from the compressor and condenses the...
6640926 Elbow silencer  
An elbow silencer is disclosed comprising a casing and a baffle defining a flow channel. The elbow silencer is constructed to be modular so that two or more complementary elbow silencers are...
6622818 Sound attenuating device  
An improved sound attenuating device for use in a gas transportation duct, said device comprising a core of acoustically absorptive material substantially enclosed within an impervious film to...
6622499 Multi-purpose air cycle system  
An air cycle system for use in a vehicle having an internal combustion engine is provided. A compressor has an outflow to an intercooler with an outflow to a first bypass valve. The first bypass...
6607432 Air duct  
An air duct, in particular for a motor vehicle heating, ventilating and/or air conditioning system, which is acoustically optimized by virtue of the fact that at least one cross-sectional...
6589112 Duct silencer  
A ventilation duct and methods of ventilation are disclosed. The ventilation duct provides a plurality of inner and outer sound absorbing members. The inner and outer sound absorbing members lying...
6543575 Double-walled structure and connection arrangement  
There is provided a double-walled structure for coupling to another double-walled structure. The coupling connects one female end portion of the one structure and one male end portion of the other...
6537490 Air inlet and outlet silencer structures for turbine  
Both air duct inlet silencers and air duct outlet silencers for use with a stationary gas turbine are disclosed. The inlet silencer comprises a vertically extending duct structure having an upper...
6530452 Reactive silencer for industrial air channels and its use  
A reactive silencer intended for industrial supply air or exhaust air channels has a sound attenuator chamber ( 10 ), to which is fitted a partition wall ( 12 ) dividing the sound attenuator...
6520284 Air intake device comprising a duct section provided with openings  
A duct or conduit section ( 10 ) for installation, in particular, in an air intake system of an internal combustion engine, in which the duct section is composed of two shells ( 14 ) which are...
6499956 Resonator-integrated fan shroud and resonator-integrated fan shroud with air intake duct  
A hollow vessel ( 1 ) which is partitioned into one or a plurality of hollow chambers (S) by blow molding is used as a resonator ( 2 ), and the hollow vessel ( 1 ) is arranged to form a fan shroud...
Matches 1 - 50 out of 259 1 2 3 4 5 6 >