Dana Canada Corporation

Long Manufacturing Ltd.

Allan K So

Benjamin A Kenney

Mark Stephen Kozdras

Michael Bardeleben

Bruce L Evans

Michael A Martin

Alan K Wu

James Cotton

Bryan Sperandei

Thomas F Lemczyk

David G Rowntree

Nicholas F Avery

Doug Vanderwees

John G Burgers

Lee M Kinder

Hervé Palanchon

Ihab Edward Gerges

Peter Zurawel

Farbod Vakilimoghaddam

Meinrad K A Machler

Andrew Buckrell

Noman Rahim

Cindy W Storr

Alan Ka-Ming Wu

Dan Constantin Stefanoiu

James R Seager

B Timothy Miller

Christina Spirou

Eric W Powell

Darryl S Watson

James Scott Cotton

Mark S Kozdras

Alan S Brown

A cold plate heat exchanger for battery thermal management has first and second plates defining a plurality of fluid flow passages, with inlet and outlet ports proximate to a first end thereof. Each fluid flow passage has first and second ends communicating with respective inlet and outlet ports. One or more portions of each fluid flow passage are immediately adjacent to and in close proximity to a portion of another fluid flow passage or channel, such that heat energy will be transferred by conduction through the first and second plates between the fluid flow passages or channels, thereby providing enhanced heat transfer. The fluid flow passages or channels may be separated by a distance which is less than a width of one of the fluid flow passages or channels, and may be separated by a single rib which partially defines each of the fluid flow passages or channels.

Heat exchanger with parallel flow features to enhance heat conduction

A heat exchanger panel has a heat transfer surface with first and second heat transfer zones of different cooling capacities. Each zone has a subgroup of fluid flow passages having a flow capacity, each extending between a fluid inlet passage and a fluid outlet passage. Where one of the zones is adapted for cooling the tabs of a battery cell, the heat exchanger panel comprises at least one first header located at an end of the panel, including a fluid inlet header and/or a fluid outlet header, a second header at the opposite end of the panel, and a plurality of flow passages extending between the headers. At least one header has a height which is greater than the height of the flow passages, and is substantially the same as a spacing between tabs of adjacent batteries when separated by one of said heat exchanger panels.

Heat exchanger with regional flow distribution for uniform cooling of battery cells

A heat exchanger has at least one plate pair comprising first and second plates with a fluid flow passage defined between the first plate and second plates. The inlet opening and the outlet opening in each plate pair are proximate to a first end and an elongate flow barrier separates the fluid flow passage into inlet and outlet portions, wherein a gap through and the flow barrier is provided proximate to the second end of each plate pair. A flow obstruction is located in the gap of each plate pair, the flow obstruction having first and second arcuate sides and being spaced from the terminal end of the flow barrier. The flow obstruction is substantially crescent-shaped, such that a middle portion of the flow obstruction is wider than the opposed ends.

Heat exchanger with flow obstructions to reduce fluid dead zones

A heat exchanger for a battery has fluid-carrying panels and defines a multi-sided enclosure for enclosing at least two sides of the battery. The heat exchanger has first and second fluid-carrying panels defining first and second flow channels, where the first and second fluid-carrying panels are arranged at an angle to another. The heat exchanger may also include a third fluid-carrying panel defining a third flow channel, and being arranged at an angle to the second fluid-carrying panel. The heat exchanger has first and second plates sealingly joined together along their peripheries and defining a fluid flow passageway between their central fluid flow areas. The second plate may be compliant, its central fluid flow area being deformable away from the central fluid flow area of the first plate in response to a pressure of a fluid inside the fluid flow passageway.

Multi-sided heat exchangers with compliant heat transfer surfaces

A heat exchanger, turbulizer or heat transfer surface, and a method of making same wherein the turbulizer is a corrugated member having parallel, spaced-apart ridges and planar fins extending therebetween. The planar fins have spaced-apart apertures with opposed peripheral edge portions including transversely extending flanges.

Heat transfer surfaces with flanged apertures

A device for recovering heat from a hot gas stream comprises a gas diverter valve and a gas/liquid heat exchanger. The diverter valve comprises a valve body; a valve element movable between a bypass position and a heat exchange position; and a gas inlet and a gas outlet formed in the valve body. The heat exchanger comprises a heat exchanger core comprised of a stack of core plates arranged parallel to the exhaust gas flow path, and the heat exchanger is located outside the exhaust gas flow path and may be spaced therefrom so as to avoid unwanted heat transfer with the valve in bypass mode. The heat exchanger may include a bottom-most gas flow path adjacent to the bottom plate, and may include a mounting plate which is mechanically secured to the valve body, with a thermally insulating gasket provided between the mounting plate and the valve body.

Exhaust gas heat recovery device

A heat exchanger has a pair of heat exchange conduits having adjacent primary heat exchange surfaces thermally coupled together for the transfer of heat energy between the conduits. A third fluid conduit has a primary heat transfer surface thermally coupled to the primary heat transfer surfaces of the pair of fluid conduits, so that heat can be transferred between any one of the fluid conduits and each of the other fluid conduits.

Multifluid heat exchanger

A heat exchanger apparatus is provided wherein a multifluid or at least three-fluid heat exchanger is mounted externally to but in combination with a two-fluid heat exchanger. The multifluid heat exchanger includes three fluid passages or conduits wherein heat energy can be transferred efficiently between at least one of the fluid conduits and each of the other fluid conduits. The multifluid heat exchanger and two fluid heat exchanger are arranged so that the two heat exchangers share a common fluid, the multifluid heat exchanger, therefore, allowing heat transfer to or from the common fluid to the two other fluids in the multifluid heat exchanger thereby improving the overall heat transfer amongst the fluids.

Linked heat exchangers having three fluids

A heat exchanger has at least three tubular conduits spaced apart for the flow of air between and around the conduits. The conduits communicate with inlet and outlet manifolds for the flow of a first liquid through the conduits. An intermediate conduit is located between at least two, but not all, of the spaced-apart tubular conduits, and the intermediate conduit has inlet and outlet openings for the flow of a second liquid through the intermediate conduit.

Multifluid two-dimensional heat exchanger

A heat exchanger in which a heat exchanger core is disposed within a casing which includes a side wall formed by bending a plate into the form of a sleeve in which edges of the plate are in adjacent, confronting relationship with an inwardly projecting, transversely extending deformation, the deformation being disposed between a pair of press members with one of the press members being transversely inserted within the sleeve. The press members are moved together to remove the deformation with resultant pivoting of the edges into abutting contact or overlapping relationship. The heat exchanger core is formed of a plurality of stacked plate pairs each having a plate in inverted orientation. Outwardly projecting ribs of anticlastic form are so formed in each plate that the ribs on each plate of each plate pair are interengagingly intersect with the ribs on the adjacent plate of the adjacent plate pair accurately to align the plate pairs in the heat exchanger core.

Heat exchanger, method of forming a sleeve which may be used in the heat exchanger, and a sleeve formed by the method

A heat exchanger is disclosed of the type having stacked plate pairs or tubes defining flow passages, with turbulizer located inside such flow passages. The turbulizers are of the expanded metal type having rows of convolutions. The convolutions are interrupted periodically to form non-convoluted pressure recovery zones located between or downstream of the convolutions. Also, the rows of convolutions can be grouped and spaced apart to provide longitudinal neutral zones between groups of adjacent rows of convolutions. The pressure recovery zones and longitudinal neutral channels reduce pressure drop in the heat exchanger without appreciably reducing heat transfer.

Heat exchanger turbulizers with interrupted convolutions

Self-enclosing heat exchangers are made from stacked plates having raised peripheral flanges on one side of the plates and continuous peripheral ridges on the other side of the plates, so that when the plates are put together, fully enclosed alternating flow channels are provided between the plates. The plates have raised bosses defining flow ports that line-up in the stacked plates to form manifolds for the flow of heat exchange fluids through alternate plates. Rib and groove barriers are formed in the plates inside the peripheral flanges and ridges. The barriers prevent short circuit flow on one side of the plates and promote flow to remote areas on the other side of the plates, to improve the overall efficiency of the heat exchangers.

Self-enclosing heat exchangers

A heat exchanger is disclosed for automotive lubricants and coolants wherein the heat exchanger has a calibrated bypass orifice located therein to maintain the flow therethrough at all times, particularly during cold flow operation, or high pressure transient conditions such as at engine start-up. The heat exchanger has a housing defining a fluid inlet chamber and a fluid outlet chamber. A separator is located between the inlet and outlet chambers and heat exchange passages are located between and communicate with the inlet and outlet chambers. The separator has a calibrated bypass orifice therethrough for the continuous flow of fluid between the inlet and outlet chambers bypassing the heat exchange passages.

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Mississauga, Canada

Allan K So