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US 10,378,359 B2Granted
Heat exchanger with precision manufactured flow passages
AssigneeUnited Technologies Corporation
InventorsJohn W. Golan, Frederick M. Schwarz
Life of this patent
Estimating the term…
Abstract
A heat exchanger has a first plurality of passages extending in a first direction and to receive a first fluid and a second plurality of passages extending in a second direction, and to receive a second fluid, and the first plurality of passages being formed across a cross-sectional face of the heat exchanger, and there being distinct combined flow cross-sectional areas of the first plurality of passages in different locations across the cross-sectional face of the heat exchanger. A gas turbine engine and a method of forming a heat exchanger are also disclosed.
Claims20
A heat exchanger comprising:
- a first plurality of passages extending in a first direction, with there being a first upstream end spaced from a first downstream end in the first direction and to receive a first fluid and a second plurality of passages extending in a second direction with there being a second upstream end spaced from a second downstream end in the second direction, and to receive a second fluid, and said first plurality of passages being formed across a cross-sectional face of the heat exchanger, and there being distinct combined flow cross-sectional areas of said first plurality of passages in different locations across said cross-sectional face of said heat exchanger;
- and
- said first plurality of passages having a lesser combined flow cross-sectional area at locations adjacent said second upstream end than said first plurality of passages combined flow cross-sectional area adjacent said second downstream end and said second plurality of passages having a lesser combined flow cross-sectional area adjacent said first upstream end than said second plurality of passages combined flow cross-sectional area adjacent said first downstream end.
A gas turbine engine comprising:
- a compressor and a turbine section;
- and
- a heat exchanger to cool air being delivered to said turbine section for cooling components in said turbine section, the heat exchanger including a first plurality of passages extending in a first direction, with there being a first upstream end spaced from a first downstream end in the first direction and to receive a first fluid and a second plurality of passages extending in a second direction with there being a second upstream end spaced from a second downstream end in the second direction, and to receive a second fluid, and said first plurality of passages being formed across a cross-sectional face of the heat exchanger, and there being distinct combined flow cross-sectional areas of said first plurality of passages in different locations across said cross-sectional face of said heat exchanger;
- and
- said first plurality of passage having a lesser combined flow cross-sectional area at locations adjacent said second upstream end than said first plurality of passages combined flow cross-sectional area adjacent said second downstream end and said second plurality of passages having a lesser combined flow cross-sectional area adjacent said first upstream end than said second plurality of passages combined flow cross-sectional area adjacent said first downstream end.
2 more elements
A method of forming a heat exchanger comprising:
- forming a first plurality of passages extending in a first direction, with there being a first upstream end spaced from a first downstream end in the first direction and to receive a first fluid and forming a second plurality of passages extending in a second direction with there being a second upstream end spaced from a second downstream end in the second direction, and to receive a second fluid, and said first plurality of passages being formed across a cross-sectional face of the heat exchanger, and there being distinct combined flow cross-sectional areas of said first cooling passages in different locations across said cross-sectional face of said heat exchanger, and
- said first plurality of passages having a lesser combined flow cross-sectional area at locations adjacent said second upstream end than said first plurality of passages combined flow cross-sectional area adjacent said second downstream end and said second plurality of passages having a lesser combined flow cross-sectional area adjacent said first upstream end than said second plurality of passages combined flow cross-sectional area adjacent said first downstream end.
Dependencies are inferred from the claim text.