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US 6,883,601 B2Granted
Air conditioner with internal heat exchanger and heat exchanger tube therefor
AssigneeEaton Fluid Power GmbH
InventorsHolger Ullrich, Bert Leisenheimer
Life of this patent
Estimating the term…
Abstract
An air-conditioning system for a motor vehicle contains a heat exchanger with a heat-exchanger tube that features a profiled central channel and outer channels grouped around the central channel. This heat-exchanger tube is suitable for the construction of counterflow heat exchangers. For this purpose, the heat-exchanger tube is to be cut to corresponding lengths and provided with corresponding end pieces. Such heat exchangers have proven to be light, pressure resistant, and effective.
Claims6
A heat-exchanger comprising:
- a heat-exchanger tube that includes a central channel having an inner wall from which a plurality of projections extend into the central channel and a plurality of outer channels that are arranged concentric to the central channel and that are separated from each other by partitions,
- wherein the heat-exchanger tube includes two ends that are each connected to a connecting piece having a collection chamber that combines all outer channels into one channel,
- wherein the connecting pieces include a means for uniformly distributing a fluid stream between the outer channels or for uniformly combining a fluid stream arriving from the outer channels;
- and
- wherein the means for uniformly distributing or combining the fluid stream is a twisting chamber.
2 more elements
A heat-exchanger comprising:
- a heat-exchanger tube that includes a central channel having an inner wall from which a plurality of projections extend into the central channel and a plurality of outer channels that are arranged concentric to the central channel and that are separated from each other by partitions,
- wherein the heat-exchanger tube includes two ends that are each connected to a connecting piece having a collection chamber that combines all outer channels into one channel,
- wherein the connecting pieces include a means for uniformly distributing a fluid stream between the outer channels or for uniformly combining a fluid stream arriving from the outer channels;
- wherein the means for uniformly distributing or combining the fluid stream is a twisting chamber;
- and
- wherein the twisting chamber exhibits a substantially cylindrical cross section.
3 more elements
A heat-exchanger comprising:
- a heat-exchanger tube that includes a central channel having an inner wall from which a plurality of projections extend into the central channel and a plurality of outer channels that are arranged concentric to the central channel and that are separated from each other by partitions,
- wherein the heat-exchanger tube includes two ends that are each connected to a connecting piece having a collection chamber that combines all outer channels into one channel,
- wherein the connecting pieces include a means for uniformly distributing a fluid stream between the outer channels or for uniformly combining a fluid stream arriving from the outer channels;
- wherein the means for uniformly distributing or combining the fluid stream is a twisting chamber;
- wherein the twisting chamber exhibits a substantially cylindrical cross section;
- and
- wherein the twisting chamber includes a connection having a longitudinal axis that does not intersect a longitudinal axis of the connecting piece.
4 more elements
Dependencies are inferred from the claim text.