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US 8,328,532 B2Granted
Compressor muffler
AssigneeCarrier Corporation
InventorVishnu M. Sishtla
Life of this patent
Estimating the term…
Abstract
A compressor has first and second enmeshed rotors rotating about first and second axes to pump refrigerant to a discharge plenum. The compressor includes a muffler system comprising a sound absorbing first element and a sound absorbing second element. The second element at least partially surrounds the first element and defines a generally annular flow path portion between the first element and the second element At least one of the first and second elements comprises an expanded bead material.
Claims20
A compressor comprising:
- a first rotor having a first rotational axis;
- a second rotor having a second rotational axis and enmeshed with the first rotor;
- a discharge plenum;
- and
- a muffler system comprising:
- a sound-absorbing first element;
- and
- a sound-absorbing second element at least partially surrounding the first element and defining a generally annular flow path portion between the first element and second element,
- wherein at least one of the first and second elements comprises an expanded bead material.
6 more elements
A compressor muffler element comprising:
- a stack of a plurality of rings of an expanded bead material stacked against each other.
Dependencies are inferred from the claim text.