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1065 条记录 (耗时 0.023 秒)

    RIGID LIGHTING UNIT
    72.
    发明申请
    RIGID LIGHTING UNIT 有权

    公开(公告)号：US20210254811A1

    公开(公告)日：2021-08-19

    申请号：US16972719

    申请日：2019-06-06

    申请人： SIGNIFY HOLDING B.V.

    发明人： Martinus Hermanus Wilhelmus Maria VAN DELDEN

    IPC分类号： F21V15/01 ,  F21V11/06 ,  F21V33/00 ,  G10K11/162

    摘要： A lighting unit (10) is disclosed comprising a torsion box (50) having a plurality of sidewalls (60) and a grid of internal walls (70), each of said internal walls extending between a pair of said sidewalls, said internal walls defining a plurality of compartments (80) within the lighting unit. At least one solid state lighting element (30) is located within at least some of said compartments, and a back panel (20) is arranged at a first opening (51) of the torsion box delimited by the sidewalls such that the back panel covers said compartments, wherein a second opening (53) of the torsion box delimited by said sidewalls opposing the first major opening defines a light exit window of the lighting unit. Also disclosed is a lighting kit comprising such lighting units, and wherein at least some internal walls (70) have a recessed central portion (72) having a height (H′) of at most half the height (H) of said side walls (70).

    TIRES WITH SELF GENERATION AND SOUND ABSORPTION
    73.
    发明申请
    TIRES WITH SELF GENERATION AND SOUND ABSORPTION 有权

    公开(公告)号：US20210252920A1

    公开(公告)日：2021-08-19

    申请号：US17173698

    申请日：2021-02-11

    申请人： HANKOOK TIRE & TECHNOLOGY CO., LTD

    发明人： Soon Hong SO ,  Chang Hyo HONG ,  Jung Hee CHOI

    IPC分类号： B60C23/04 ,  H02J50/00 ,  H02N1/04 ,  G10K11/162 ,  B60C19/00

    摘要： Proposed is a tire with self-generation and sound absorption and, more particularly, is a tire with self-generation and sound absorption that operates an electronic module through self-power generation and has improved sound absorption performance. The tire with self-generation and sound absorption includes: a wall structure formed on a surface of an inner liner of the tire; a sound absorber spaced apart upward from the inner liner with both ends coupled to the wall structure and blocking sound generated by surfaces of treads and a road surface; and an electronic unit disposed on the surface of the inner liner and positioned between the inner liner and the sound absorber.

    SOUND ABSORBING LIGHT FIXTURE
    74.
    发明申请
    SOUND ABSORBING LIGHT FIXTURE 有权

    公开(公告)号：US20210248988A1

    公开(公告)日：2021-08-12

    申请号：US17172751

    申请日：2021-02-10

    申请人： LUMENWERX ULC

    发明人： Michael Evan Simla ,  Timothy Ernest Gulsrud

    IPC分类号： G10K11/172 ,  G10K11/162 ,  F21S8/04

    摘要： A sound absorbing light fixture comprising at least one light emitting element comprising light emitting diodes (LEDs) extending along a first side with at least one perforated panel comprising perforations selected to create an acoustic resonance condition within a cavity of the light fixture comprising a sound absorbing core. The perforated panels are additionally configured to conceal at least a portion or an entirety of the sound absorbing core.

    SOUNDPROOF SYSTEM
    76.
    发明申请
    SOUNDPROOF SYSTEM 有权

    公开(公告)号：US20210233507A1

    公开(公告)日：2021-07-29

    申请号：US17232816

    申请日：2021-04-16

    申请人： FUJIFILM Corporation

    发明人： Yoshihiro SUGAWARA ,  Shogo YAMAZOE ,  Shinya HAKUTA ,  Akihiko OHTSU

    IPC分类号： G10K11/172 ,  G10K11/162

    摘要： Provided is a soundproof system having high sound silencing performance at a specific frequency while ensuring ventilation property. A soundproof system that silences a sound generated from a sound source which is disposed in a ventilation member having a ventilation passage, in which the sound generated from the sound source is at least one dominant sound of which a sound pressure at a specific frequency is a maximum value, at least a part of a high impedance space in which an acoustic impedance is higher than an average value of an acoustic impedance of the ventilation passage exists within a distance of ±0.25×λ of the sound source in a flow direction of the ventilation passage, the soundproof system includes a silencer that is disposed in the ventilation member and silences a sound in a frequency band including a frequency of the dominant sound, the silencer forms a low impedance space in which the acoustic impedance is lower than the average value of the acoustic impedance of the ventilation passage, and assuming that a center wavelength of the dominant sound is λ and m is a positive integer, a distance L between the high impedance space and the low impedance space satisfies (0.5×λ×m−0.2×λ)

    Sound absorber arrangement and sound-insulated room
    77.
    发明授权
    Sound absorber arrangement and sound-insulated room 有权

    公开(公告)号：US11060277B2

    公开(公告)日：2021-07-13

    申请号：US16301242

    申请日：2017-05-12

    申请人： LIAVER GMBH & CO. KG

    发明人： Christian Hoppe ,  Ronald Tschiersch

    IPC分类号： E04B1/84 ,  E04B1/82 ,  E04B9/00 ,  G10K11/162

    摘要： The present invention relates to a sound absorber arrangement comprising multiple sound absorber elements that are arranged in a room having walls and a ceiling that closes off the room at the top. Multiple adjacently situated sound absorber elements form one or more absorber strips that extend(s), at least in sections, along an upper abutting edge extending between the wall and ceiling of the room. The sound absorber elements have a width of 200-400 mm and a thickness of 40-65 mm. The sound absorber elements have a length-specific flow resistance in the range of 5-20 kPa*s/m4.
    The invention further relates to a sound-insulated room having such a sound absorber arrangement.

    Muffler With Internally Supported Tuner
    78.
    发明申请
    Muffler With Internally Supported Tuner 有权

    公开(公告)号：US20210207507A1

    公开(公告)日：2021-07-08

    申请号：US16733546

    申请日：2020-01-03

    申请人： Tenneco Automotive Operating Company Inc.

    发明人： Abdulhadi MADI ,  Isidro L. HERNANDEZ ,  Prajwal H. RAO

    IPC分类号： F01N1/02 ,  G10K11/162

    摘要： A muffler for receiving exhaust gas from a combustion engine is disclosed. The muffler includes a casing and a pipe. The casing includes a shell coupled to first and second end caps that cooperate to define an internal volume. The pipe is disposed within the internal volume and extends substantially a length of the shell. Each of the first and second end caps includes a circumferentially extending flange engaging an outer surface of the pipe to provide support for the pipe. Each circumferentially extending flange extends at an acute angle relative to a shell axis of the shell. Each circumferentially extending flange is coaxial along a pipe axis of the pipe.

    AIR OUTLET SOUND ABSORBER FOR A ROTATING ELECTRICAL MACHINE
    80.
    发明申请
    AIR OUTLET SOUND ABSORBER FOR A ROTATING ELECTRICAL MACHINE 有权

    公开(公告)号：US20210180487A1

    公开(公告)日：2021-06-17

    申请号：US16761036

    申请日：2018-11-01

    申请人： BRUSH ELECTRICAL MACHINES LIMITED

    发明人： Dennis MATHAI

    IPC分类号： F01N1/04 ,  G10K11/162 ,  G10K11/172 ,  F01N1/08 ,  F01N1/24

    摘要： A rotating electrical machine such as a generator has a rotor disposed within a rotor housing and an air flow path passing from the rotor housing to and through a silencer to an exhaust. The silencer comprises at least one air flow path disposed adjacent at least one sound absorbing column, the column comprising a first portion having a first sound absorbing material therein and a second portion having a microperforated panel (MPP) and a resonator cavity. The second portion comprises a reactive sound absorbing unit which can be specifically tuned to suppress aero-acoustic noise generated by ventilation slots in the rotor, typically peaks at 100 Hz or 120 Hz.