Modine Manufacturing Company

Jörg Soldner

Harald Schatz

Werner Zobel

Wolfgang Knecht

Roland Strähle

Frank Vetter

Michael Ehlers

Michael Daniel

Bjorn Volquardsen

Omur Acar

Mark G Voss

Roland Str&auml;hle

Andreas F Stolz

Sven Thumm

Ingo Heitel

Andreas Willman

Jens Nies

Gregg D Olson

Peter C Kottal

Brian Merklein

Frank M Grippe

Jochen Orso

Roy J Ingold

Peter Ambros

Mark Reichler

Ralf Beck

Daniela Fischer

Dieter Merz

Mark Kazikowski

Kevin G Clabots

Joachim Wollmershäuser

Joel T Casterton

Kevin M Eppers

Werner Nitsche

Herbert Marschner

Thomas Braüning

Thomas Hofmann

Walter Gühring

Rainer Kaissling

Jörg-Olaf Wille

Heitel Ingo

Wemer Zobel

Katja Müller

Stefan Muller-Luft

A heat exchanger includes a bundle of tubes, which can be inserted into a tubular housing. Exhaust gas can flow through the tubes. A coolant duct can be arranged between the tubes. The bundle of tubes can have at least one grid-like securing structure which supports the bundle in the housing. The behavior of the heat exchanger with respect to vibrations is affected by outwardly curved metallic springs attached to the bundle of tubes which may be deformed in the opposite direction to the insertion direction of the bundle into the housing. The spring force is directed against the housing in order to dampen vibrations. The heat exchanger can also include an elastic device for permitting a change in length caused by temperature changes.

Heat exchanger

A heat exchanger includes a plurality of tubes, a collection tank having an inlet port and an internal chamber in fluid communication with the plurality of tubes, a header coupled to the collection tank and having a plurality of apertures each dimensioned to receive a corresponding tube, a gasket separating the header from the collection tank and sealing a gap between the header and the collection tank, and a reinforcement retaining the gasket in position between the header and the collection tank. The reinforcement includes a first web extending across the internal chamber and a second web spaced apart from the first web and extending across the internal chamber. The heat exchanger also includes a baffle coupled to and extending between the first web and the second web. The baffle extends across at least a portion of the internal chamber between the inlet port and the plurality of tubes.

Heat exchanger with a baffle reinforcement member

A heat exchanger with a plurality of stacked flat tubes and a collecting tank having a wall extending around the entire periphery of, and connected to, the end of the stacked flat tubes. A first medium may be distributed through the collecting tank and flat tubes. Internal inserts are in the flat tubes, with the inserts being bonded between the broad sides of the tubes and, in the region of connection of the tubes to the collecting tank, being configured to compensate for length changes in the stacking direction caused by temperature changes, as by recesses in connectors such as wave flanks or by corrugated wave flanks. The flat tubes with inserts such as described may be separately provided for use in manufacture of heat exchangers.

Heat exchanger with flat tubes

The invention relates to a heat exchanger having a bundle of tubes, which can be inserted into a tubular housing. Exhaust gas can flow through the tubes. A coolant duct can be arranged between the tubes. The bundle of tubes can have at least one grid-like securing structure which supports the bundle in the housing. The behavior of the heat exchanger with respect to vibrations is improved by virtue of the fact that the grid-like metallic securing structure includes integral hook-shaped protrusions which are deformed in the opposite direction to the insertion direction of the bundle into the housing. The spring force is directed against the housing in order to dampen vibrations. The heat exchanger can also include an elastic device for permitting a change in length caused by temperature changes.

The invention relates to an exhaust gas heat exchanger in an exhaust gas recirculation arrangement. The heat exchanger includes a plate stack which is surrounded by a housing. The plate stack can include two plates which are connected at their longitudinal edges to form a flat tube which contains a turbulator through which exhaust gas flows. The heat exchanger can also include a coolant duct which is equipped with flow directing elements arranged between two flat tubes. In order to make the exhaust gas heat exchanger more resistant to changing temperature stresses, the invention provides that the flow directing elements can be formed from a corrugated plate in which ducts with inlets and outlets are formed. At least some of the ducts in the inlet area of the coolant have a nonlinear profile so that changes in length are permitted between the plate stack and the housing.

Exhaust gas heat exchanger and method of operating the same

A cooling system includes a radial fan rotatable by an axis to deliver radial air flow to the cooling system, a plurality of heat exchangers spaced radially from the fan and arranged around the fan in a box-like configuration to receive the radial air flow therefrom, with the heat exchangers bounding an interior space of the cooling system. One of the heat exchangers is provided in the form of a charge air cooler that includes a first flow path for a charge air flow in heat exchange relation with a second flow path for an engine coolant flow of the vehicle. The cooling system further includes a surface associated with the charge air cooler to substantially block the radial air flow from exiting the interior space through the charge air cooler.

Box-like cooling system

An economically manufactured heat exchanger is provided and includes a plurality of elongated, straight, flat tubes (), each formed of two identical halves () joined to each other in mirror image fashion and each having opposed open ends and all arranged in a stack (). At least one spacer wall () is disposed within each tube and extends generally from end to end thereof to define at least two side-by-side first fluid flow paths within a tube. An elongated housing () contains the stack and includes spaced headers () with each header including a tube slot for the adjacent end of each tube () in the stack (). Spacers () in the stack separate adjacent tubes in the stack from one another and the spacers include ribs defining a serpentine flow path for a second fluid. An opening () is located in the housing () near each end thereof and is in fluid communication with the second fluid flow path ().

A vehicle radiator including inlet and outlet headers, a soldered core having a plurality of coolant flat tubes joining the inlet header and the outlet header with cooling fins on opposite sides of the coolant flat tubes, and a multifunction flat tube on at least one side of the core. The multifunction flat tube has a greater section modulus than the coolant flat tubes, and is soldered to adjacent cooling fins and the inlet and outlet headers whereby the multifunction flat tube carries coolant from the inlet header to the outlet header. The multifunction flat tubes each also have an inner flow resistance which is substantially smaller than the inner flow resistance of individual coolant flat tubes whereby more coolant flows through each multifunction flat tube than flows through an individual coolant flat tube per unit time.

Radiator with side flat tubes

A compact cooling system includes a mounting panel adapted to receive a plurality of at least three cooling units, a cooling fan, and a fan drive mechanism. The mounting panel supports the fan and drive mechanism in a manner allowing rotation of the fan about the axis of rotation. A front side of the mounting panel is adapted for receiving and supporting the cooling units in a pattern defining a cantilevered, tubular polygonal solid disposed about the fan. The mounting panel includes a convex central region extending into the tubular polygonal solid and receiving the drive mechanism in operative connection to the fan. By virtue of this arrangement, a very compact cooling system is provided. The tubular polygonal shape of the cooling units, when mounted on the mounting panel, forms an air duct for directing a flow of cooling air induced by the fan through the cooling units. Positioning the drive mechanism inside the convex central region of the mounting panel significantly reduces the length of the cooling system along the axis of rotation.

Compact cooling system

A flat tube block heat exchanger with a plurality of flat tubes with deformed ends. The deformed ends have broad sides that have been deformed to expose the inner surface of the flat tubes. The exposed inner surfaces of the flat tubes are bonded to the exposed inner surface of an adjacent flat tube. The bonded inner surfaces of the adjacent flat tubes form a fluid barrier with tanks located at opposite ends of the flat tubes.

Flat tube block heat exchanger

A transmission drives a radial fan about a fan axis in a vehicle cooling unit including a plurality of heat exchangers arranged to surround the radial fan to receive a radial air flow therefrom. A driving pulley, a driven pulley, and a idler pulley of the heat exchangers.

Transmission for driving a radial fan of a vehicle cooling unit

A compact cooling system for a vehicle includes an assembly of heat exchangers ( ), ( ), ( ) and ( ) connected to each other to provide a box-like configuration. Each heat exchanger ( ), ( ), ( ), ( ) includes a core with headers ( ), ( ) at each end in fluid communication with spaced, flattened tubes ( ) with fins (24) extending between the tubes in each of the cores. One of the cores ( ) is generally horizontal and located at the upper side of the box-like configuration. A radial discharge fan ( ) is located within the box-like configuration and receives cooling air and directs the same radially outwardly through the cores to cool fluid passing through the tubes ( ) of the cores. An equalization tank ( ), ( ) is mounted on the box-like configuration in overlying, spaced relation to a substantial portion of the surface of the heat exchanger ( ) so as to be in the path of cooling air merging from the heat exchanger ( ) to divert the same.

Equalization vessel for vehicular compact cooling systems

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Ehningen, Germany

Jörg Soldner