Refrigeration – Muffler or sound dampener
Patent
1991-03-07
1992-06-30
Wayner, William E.
Refrigeration
Muffler or sound dampener
381 71, 417 14, F25D 1900, A61F 1106
Patent
active
051252414
ABSTRACT:
A refrigerator with a noise attenuating function includes a cabinet having storage and machine compartments, a compressor disposed in the machine compartment, a noise detector disposed in the machine compartment for detecting noise produced from driving of the compressor and converting the noise to an electrical signal, an operational unit for converting the electrical signal to an acoustic signal for an active noise control, a cancellation sound producer producing a sound of opposite phase with the noise based on the acoustic signal so that the noise is attenuated, a noise attenuation monitoring sound receiver for monitoring the noise attenuating effect of the cancellation sound producer, an adaptive control circuit changing an operational factor of the operational unit by a predetermined amount when the monitoring result of the noise attenuation monitoring sound receiver is out of a predetermined tolerance, the adaptive control circuit being adapted to continuously perform the operation of changing the operational factor until the monitoring result comes into the tolerance, and a connecting member for integrally connecting the cancellation sound producer and the noise attenuation monitoring sound receiver.
REFERENCES:
patent: 4527282 (1985-07-01), Chaplin et al.
patent: 4989252 (1991-01-01), Nakanishi et al.
patent: 5010739 (1991-04-01), Isshiki et al.
Nakanishi Keiji
Sekiguchi Yasuyuki
Kabushiki Kaisha Toshiba
Wayner William E.
LandOfFree
Refrigerating apparatus having noise attenuation does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Refrigerating apparatus having noise attenuation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Refrigerating apparatus having noise attenuation will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1855661