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US 6,640,583 B2Granted
Heat exchanger with intertwined inner and outer coils
AssigneeAmerican Standard International Inc.
InventorStephen S. Hancock
Life of this patent
Estimating the term…
Abstract
A double-row heat exchanger coil includes intertwined inner and outer loops. The loops are situated to allow one continuous coil to be wound in an uninterrupted coiling operation, and later cut at several locations to create several individual circuits that are readily connected to each other in a parallel flow relationship.
Claims19
A refrigerant system comprising:
- a refrigerant compressor;
- a flow restriction;
- an indoor heat exchanger;
- an outdoor heat exchanger that includes a vapor manifold and a liquid manifold that place said outdoor heat exchanger in series flow relationship with said refrigerant compressor, said flow restriction and said indoor heat exchanger;
- a circuit-A borne by said outdoor heat exchanger and extending from a vapor loop-A to a liquid loop-A with said vapor loop-A being coupled to said vapor manifold and said liquid loop-A being coupled to said liquid manifold, said circuit-A being distributed to create a greater plurality of inner A-loops and a lesser plurality of outer A-loops and repeatedly transiting between said plurality of outer A-loops to said plurality of inner A-loops, as said circuit-A runs from said vapor loop-A to said liquid loop-A;
- and
- a circuit-B borne by said outdoor heat exchanger and extending from a vapor loop-B to a liquid loop-B with said vapor loop-B being coupled to said vapor manifold and said liquid loop-B being coupled to said liquid manifold to place said circuit-B in parallel flow relationship with said circuit-A, said circuit-B being distributed to create a greater plurality of inner B-loops and a lesser plurality of outer B-loops with said liquid loop-A being closer to said vapor loop-B than said vapor loop-A, said circuit-B repeatedly transiting between said plurality of outer B-loops to said plurality of inner B-loops, as said circuit-B runs from said vapor loop-B to said liquid loop-B.
4 more elements
A refrigeration system comprising:
- a compressor;
- an indoor heat exchanger;
- a flow restrictor;
- and
- an outdoor heat exchanger;
- the compressor, the indoor heat exchanger, the flow restrictor and the outdoor heat exchanger being arranged in series flow relationship;
- wherein the outdoor heat exchanger includes:
- a circuit-A extending in a coiled configuration from a vapor loop-A to a liquid loop-A and being distributed to create a greater plurality of inner A-loops and a lesser plurality of outer A-loops, wherein said circuit-A repeatedly transits between said plurality of outer A-loops and said plurality of inner A-loops, as said circuit-A runs from said vapor loop-A to said liquid loop-A.
5 more elements
A refrigeration system comprising:
- a compressor, an indoor heat exchanger, a flow restrictor, and an outdoor heat exchanger arranged in series flow relationship;
- the outdoor heat exchanger including a first vertically aligned row of spine fin tubing, a second vertically aligned row of spine fin tubing and circuiting to repeatedly transit a fluid between the first and second rows wherein circuiting is arranged in a pattern and the pattern has a fluid flow sequence of three spiral loops in the first vertical row, one spiral loop in the second vertical row, two spiral loops in the first vertical row, and one spiral loop in the second vertical row.
Dependencies are inferred from the claim text.