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Class Information
Number: 415/119
Name: Rotary kinetic fluid motors or pumps > With sound or vibratory wave absorbing or preventing means or arrangement
Description: Apparatus comprising means or a disposition of parts to eliminate, reduce or prevent the formation or transmission of sonic or oscillatory waves from the apparatus to the environment or between parts of the apparatus.

Patents under this class:

Patent Number Title Of Patent Date Issued
8702379 Quiet blower apparatus and system and method for reducing blower noise Apr. 22, 2014
8702378 Air flow passage liner Apr. 22, 2014
8702377 Gas turbine engine rotor tip clearance and shaft dynamics system and method Apr. 22, 2014
8701822 Gas-guiding pipe comprising a noise-attenuating covering with variable porosity Apr. 22, 2014
8690525 Vacuum pump Apr. 8, 2014
8690524 Low-noise ported-shroud compressor for a turbocharger Apr. 8, 2014
8684674 Anti-rotation shroud for turbine engines Apr. 1, 2014
8684671 Turbomachine casing Apr. 1, 2014
8684670 Sealing mechanism with bellows and steam turbine provided with the sealing mechanism Apr. 1, 2014
8678752 Rotary machine having non-uniform blade and vane spacing Mar. 25, 2014
8678740 Turbomachine flow path having circumferentially varying outer periphery Mar. 25, 2014
8668441 Deformable structural framework for a turbofan nacelle Mar. 11, 2014
8668432 Bearing arrangement having a double-row roller bearing, turbocharger and method for feeding a lubricant to the rows of rolling bodies of a double-row roller bearing Mar. 11, 2014
8662828 High pressure turbine of a turbomachine with improved assembly of the mobile blade radial clearance control box Mar. 4, 2014
8651800 Induction system with air flow rotation and noise absorber for turbocharger applications Feb. 18, 2014
8650853 Noise reduction assembly for aircraft turbojet Feb. 18, 2014
8647054 Axial turbo engine with low gap losses Feb. 11, 2014
8641369 System and method for damping vibrations in a wind turbine Feb. 4, 2014
8640820 High-speed jet noise reduction via fluidic injection Feb. 4, 2014
8632301 Low noise compressor rotor for geared turbofan engine Jan. 21, 2014
8632300 Energy absorbing apparatus in a gas turbine engine Jan. 21, 2014
8613605 Centrifugal pump Dec. 24, 2013
8613598 Wet compression apparatus and method Dec. 24, 2013
8613588 Fan module and vibration-damping mounting therefor Dec. 24, 2013
8602720 Compressors with casing treatments in gas turbine engines Dec. 10, 2013
8602156 Multi-splice acoustic liner Dec. 10, 2013
8601713 Silencer for drying appliance and quiet hairdryer Dec. 10, 2013
8591177 Structure of radial turbine scroll Nov. 26, 2013
8579577 Fan with sound-muffling box Nov. 12, 2013
8577504 System for suppressing vibration in turbomachine components Nov. 5, 2013
8573926 Gas turbine engine fan drive gear system damper Nov. 5, 2013
8568088 Magnetic device for damping blade vibrations in turbomachines Oct. 29, 2013
8562283 Fan array fan section in air-handling systems Oct. 22, 2013
8556574 Fan array fan section in air-handling systems Oct. 15, 2013
8556026 Industrial plant with noise attenuation hood Oct. 15, 2013
8550775 Compressor Oct. 8, 2013
8550772 Seal member, steam turbine, and method of avoiding resonance Oct. 8, 2013
8550208 High pressure muffling devices Oct. 8, 2013
8544598 Soundproofing panel for turbomachine and turbomachine comprising such a panel Oct. 1, 2013
8534991 Compressor with asymmetric stator and acoustic cutoff Sep. 17, 2013
8534990 Inlet guide vane drive system with spring preload on mechanical linkage Sep. 17, 2013
8534066 Two-stage turbocharged engine system Sep. 17, 2013
8529197 Gas turbine engine fan drive gear system damper Sep. 10, 2013
8523518 Systems, methods, and apparatus for linking machine stators Sep. 3, 2013
8523515 Noise reducer for rotor blade in wind turbine Sep. 3, 2013
8517685 Device for reducing vibration generated by rotorcraft rotor, and rotorcraft provided with such device Aug. 27, 2013
8517675 Blower fan for low profile environment Aug. 27, 2013
8517668 Low noise turbine for geared turbofan engine Aug. 27, 2013
8513839 Fan with damper Aug. 20, 2013
8510945 Method of mounting a heat exchanger in a gas turbine engine assembly Aug. 20, 2013

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