Heat exchanger with multi-plate structure and use thereof
First Claim
Patent Images
1. A heat exchanger comprising:
- a plurality of plates each having first and second heat transfer surfaces on reverse sides thereof, said plates being arranged in a stack with spacings between mutually facing heat transfer surfaces of adjacent plates, alternate spacings in the stack providing respectively, a first fluid path for a first fluid and a second fluid path for a second fluid, and wherein the plates are arranged in a plurality of groups, each comprising at least two plates;
a plurality of pins, wherein the pins are distinct from the plates until attachment therewith, and wherein the pins are arranged in mutually orthogonal rows and columns, and further wherein within at least one of the groups of plates;
first pins of the plurality thereof are arranged to bridge adjacent plates of the group,second pins of the plurality thereof extend from outermost heat transfer surfaces of the group, said second pins terminating in free endsat least some pins of the plurality thereof extend only from the first heat transfer surface of at least one plate in the group and are offset with respect to pins extending only from the second heat transfer surface of that plate.
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Accused Products
Abstract
A heat exchanger comprises a plurality of plates (7, 9, 11, 13) each having first (15, 19) and second (17, 21) heat transfer surfaces on reverse sides. The plates are arranged in a stack with spacings between mutually facing heat transfer surfaces of adjacent plates. Alternate spacings in the stack providing respectively, a first fluid path (51, 52) for a first fluid and a second fluid path (57, 59) for a second fluid. The plates are arranged in a plurality of groups, each comprising at least two plates. Pin means are provided in the form of a plurality of groups of pins (23). The pins of each pin group are arranged to bridge plates of a respective plate group.
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Citations
36 Claims
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1. A heat exchanger comprising:
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a plurality of plates each having first and second heat transfer surfaces on reverse sides thereof, said plates being arranged in a stack with spacings between mutually facing heat transfer surfaces of adjacent plates, alternate spacings in the stack providing respectively, a first fluid path for a first fluid and a second fluid path for a second fluid, and wherein the plates are arranged in a plurality of groups, each comprising at least two plates; a plurality of pins, wherein the pins are distinct from the plates until attachment therewith, and wherein the pins are arranged in mutually orthogonal rows and columns, and further wherein within at least one of the groups of plates; first pins of the plurality thereof are arranged to bridge adjacent plates of the group, second pins of the plurality thereof extend from outermost heat transfer surfaces of the group, said second pins terminating in free ends at least some pins of the plurality thereof extend only from the first heat transfer surface of at least one plate in the group and are offset with respect to pins extending only from the second heat transfer surface of that plate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A heat exchanger comprising:
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a plurality of plates, wherein the plates are arranged in a plurality of groups, each group comprising first and second spaced-apart plates, the groups of plates arranged in a stack; a first group of pins, a second group of pins, and a third group of pins, wherein the pins in the first, second, and third groups are distinct from the plates until attachment therewith, and further wherein; (i) the first group of pins is disposed in a space between mutually facing surfaces of the first and second plates in each group, wherein one end of at least some of the pins are attached to one of the mutually facing surfaces and a second end of at least some of the pins are attached to the other of the mutually facing surfaces; (ii) the second group of pins extends from and is attached to a non-facing surface of the first plate in each group; (iii) the third group of pins extends from and is attached to a non-facing surface of the second plate in each group; and (iv) a longitudinal axis of symmetry of at least some of the pins in the first group thereof is offset from a longitudinal axis of symmetry of at least some of the pins of the second group thereof. - View Dependent Claims (28, 29)
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30. A heat exchanger comprising:
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a plurality of plates, wherein the plates are arranged in a plurality of groups, each group comprising first and second spaced-apart plates, the groups of plates arranged in a stack; a plurality of groups of pins, wherein the pins are distinct from the plates until attachment therewith, and further wherein; (i) a first group of pins is disposed in a space between mutually facing surfaces of the first and second plates in each group, wherein one end of each pin is attached to one of the mutually facing surfaces and a second end of each pin is attached to the other of the mutually facing surfaces; (ii) a second group of pins extending from and attached to a non-facing surface of the first plate in each group; (iii) a third group of pins extending from and attached to a non-facing surface of the second plate in each group; (iv) a longitudinal axis of symmetry of at least some of the pins in the first group thereof is offset from a longitudinal axis of symmetry of at least some of the pins of the second group thereof; and (v) the second group of pins comprises pin sub-groups containing three nearest pins, wherein the longitudinal axes of symmetry of the three pins in at least some of the pin sub-groups are equidistantly spaced from one another. - View Dependent Claims (31, 32, 33)
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34. A heat exchanger comprising:
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a first plate, wherein the first plate includes a first pin-attaching region on a first side thereof, a second pin-attaching region on a second side thereof, and having no through-holes between the first side and the second side in the pin-attaching regions; a first plurality of pins each having a first end terminating on the first pin-attaching region of the first plate and a plurality of first welds, the first welds resulting from welding at least some of the first plurality of pins to the first pin-attaching region; a second plurality of pins each having a first end terminating on the second pin-attaching region of the first plate and a plurality of second welds, the second welds resulting from welding at least some of the second plurality of pins to the second pin-attaching region, wherein at least some of the pins of the first plurality thereof are axially offset from the pins of the second plurality thereof; a second plate, wherein the second plate includes a third pin-attaching region on a first side thereof, a fourth pin-attaching region on a second side thereof, and having no through-holes between the first side and the second side in the pin-attaching regions thereof; a third plurality of pins each having a first end terminating on the third pin-attaching region of the second plate and a plurality of third welds, the third welds resulting from welding at least some of the third plurality of pins to the third pin-attaching region; and a fourth plurality of pins each having a first end terminating on the fourth pin-attaching region of the second plate and a plurality of fourth welds, the fourth welds resulting from welding at least some of the fourth plurality of pins to the fourth pin-attaching region, wherein at least some of the pins of the third plurality thereof are axially offset from the pins of the fourth plurality thereof and are axially aligned with the pins of the second plurality thereof. - View Dependent Claims (35, 36)
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Specification