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US 12,050,032 B2Granted
Muffler with metallic meshed rings
AssigneeCarrier Corporation
InventorAnthony S. Molavi
Life of this patent
Estimating the term…
Abstract
Disclosed is a muffler for a water-cooled chiller or air-cooled of a vapor-compression or absorption refrigeration system, the muffler having: an upstream case having a fluid inlet; a downstream case connected to the upstream case at a downstream end of the upstream case, the downstream case having a fluid outlet; the upstream case having a plurality of axially adjacent outer muffler rings and a plurality of axially adjacent inner muffler rings, the outer muffler rings being axially coextensive and a radially exterior to the inner muffler rings and defining a fluid inlet passage therebetween, wherein the outer muffler rings and inner muffler rings are a metal mesh material.
Claims18
A muffler for a chiller of a vapor-compression or absorption refrigeration system, the muffler comprising:
- an upstream case having a fluid inlet;
- a downstream case connected to the upstream case at a downstream end of the upstream case, the downstream case having a fluid outlet;
- the upstream case having a plurality of axially adjacent outer muffler rings and a plurality of axially adjacent inner muffler rings, the outer muffler rings being axially coextensive and a radially exterior to the inner muffler rings and defining a fluid inlet passage therebetween, wherein the outer muffler rings and inner muffler rings are a metal mesh material,
- wherein the upstream case comprises N sets of muffler rings including the outer muffler rings and the inner muffler rings, the N sets of muffler rings being axially aligned and radially spaced to provide N−1 fluid passages therein, wherein N is greater than or equal to 3 to define at least a first intermediate set of muffler rings which are radially between the outer muffler rings and inner muffler rings, to thereby provide a center chamber and at least two flow passages axially aligned and radially spaced between the sets of muffler rings, wherein a first flow passage of the at least two flow passages is between the inner muffler rings and the first intermediate set of muffler rings and a second flow passage of the at least two flow passages is between the outer muffler rings and the first intermediate set of muffler rings.
1 more element
A system comprising:
- a chiller comprising a muffler, the muffler comprising:
- an upstream case having a fluid inlet;
- a downstream case connected to the upstream case at a downstream end of the upstream case, the downstream case having a fluid outlet;
- and
- the upstream case having a plurality of axially adjacent outer muffler rings and a plurality of axially adjacent inner muffler rings, the outer muffler rings being axially coextensive and a radially exterior to the inner muffler rings and defining a fluid inlet passage therebetween, wherein the outer muffler rings and inner muffler rings are a metal mesh material,
- wherein the upstream case comprises N sets of muffler rings including the outer muffler rings and the inner muffler rings, the N sets of muffler rings being axially aligned and radially spaced to provide N−1 fluid passages therein, wherein N is greater than or equal to 3 to define at least a first intermediate set of muffler rings which are radially between the outer muffler rings and inner muffler rings, to thereby provide a center chamber and at least two flow passages axially aligned and radially spaced between the sets of muffler rings, wherein a first flow passage of the at least two flow passages is between the inner muffler rings and the first intermediate set of muffler rings and a second flow passage of the at least two flow passages is between the outer muffler rings and the first intermediate set of muffler rings.
3 more elements
A method of operating a chiller system,
- the chiller system comprising a muffler, the muffler further comprising:
- an upstream case having a fluid inlet;
- a downstream case connected to the upstream case at a downstream end of the upstream case, the downstream case having a fluid outlet;
- the upstream case having a plurality of axially adjacent outer muffler rings and a plurality of axially adjacent inner muffler rings, the outer muffler rings being axially coextensive and a radially exterior to the inner muffler rings and defining a fluid inlet passage therebetween, and wherein the outer muffler rings and inner muffler rings are a metal mesh material,
- wherein the upstream case comprises N sets of muffler rings including the outer muffler rings and the inner muffler rings, the N sets of muffler rings being axially aligned and radially spaced to provide N−1 fluid passages therein, wherein N is greater than or equal to 3 to define at least a first intermediate set of muffler rings which are radially between the outer muffler rings and inner muffler rings, to thereby provide a center chamber and at least two flow passages axially aligned and radially spaced between the sets of muffler rings, wherein a first flow passage of the at least two flow passages is between the inner muffler rings and the first intermediate set of muffler rings and a second flow passage of the at least two flow passages is between the outer muffler rings and the first intermediate set of muffler rings,
- the method comprising:
- muffling noise so that over an octave band of 80 Hz to 130 Hz, a sound pressure level is between approximately 78 dBA-Wtg and approximately 80 dBA-Wtg.
4 more elements
Dependencies are inferred from the claim text.