A method of forming a cast heat exchanger plate includes forming at least one hot core plate defining internal features of a one piece heat exchanger plate and at least one first set of interlocking features. At least one cold core plate is formed defining external features of the heat exchanger plate and at least one second set of interlocking features. A core assembly is assembled wherein each hot core plate is directly interlocked to the at least one cold core plate. A wax pattern is formed with the core assembly. An external shell is formed over the wax pattern. The wax pattern is removed to form a space between the core assembly and the external shell. The space is filled with a molten material and cures the molten material. The external shell is removed. The core assembly is removed. A core assembly for a cast heat exchanger is also disclosed.

Aspects of the disclosure relate to providing an EGR cooler including a barrier layer applied to EGR cooler components while allowing sufficient heat transfer between exhaust gases and the cooling medium. A barrier layer may be applied onto particular surfaces of the EGR cooler components to prevent deposition of hydrocarbons or soot on the EGR cooler components. In some arrangements, the barrier layer may comprise a refractory solid oxide. In other arrangements, an EGR cooler may comprise a catalytic barrier layer. The catalytic barrier layer may include a refractory solid oxide and a platinum group metal or mixed metal oxide to prevent accumulation of varnish material deposited onto EGR cooler components.

In a method for producing a thermal component (1, 1′) a pipe (2, 2′,2″) having a fluid channel (3, 3′, 3″) with an inner profile (4, 4′) is provided, and a swirler (6, 6′) having an outer profile (5, 5′) corresponding to the inner profile (4, 4′) is inserted into the fluid channel (3, 3′, 3″). A thermal component (1, 1′) manufactured in this manner includes a pipe (2, 2′, 2″) having a fluid channel (3, 3′, 3″), and a swirler. The fluid channel (3, 3′, 3″) of the pipe (2, 2′, 2″) includes an inner profile (4, 4′) corresponding to an outer profile (5, 5′) of the swirler (6, 6′), and the swirler is disposed in the fluid channel (3, 3′, 3″).

A heat exchanger includes flat tubes spaced apart from each other and located in parallel, a header that connects end portions of the flat tubes, and a fin joined between the flat tubes adjacent to each other. The fin is provided with a break line that breaks the fin when bending is performed. A cut is provided at both ends of the break line on the fin including a first end and a second end, and extends parallel to the airflow direction from the first end to the second end.

A heat exchanger and an air conditioning unit with multiple refrigeration systems. The heat exchanger includes a first header, a second header, a third header, a fourth header, a heat exchange tube including a first heat exchange tube and a second heat exchange tube alternately arranged in a length direction of the header, and fins. The first heat exchange tube or the second heat exchange tube or both has a bent section and includes a first section, a middle section, and a second section, and the heat exchanger includes a first part including the first section, a middle part, and a second part. The middle part of the heat exchanger includes the middle section and the fins, and air flowing through the heat exchanger passes through the middle part and then the first part, or passes through the first part and then the middle part.

The present invention relates to a heat exchanger for gases, in particular for the exhaust gases of an engine, which includes a plurality of gas circulation conduits and a casing for the exchange of heat between said gases and a coolant fluid that surrounds the gas circulation conduits housed inside the casing, wherein baffles are used to configure the passage of the coolant fluid between said gas circulation conduits, having at least one inlet baffle that directs the flow of coolant to the part and thus improving the operating conditions of the exchanger and making same more efficient.

A heat exchanger having a chamber assembly defining a hollow space within, the chamber assembly having an input and a discharge means of a heat exchange medium. Disposed within the chamber assembly is a medium directing assembly. The medium directing assembly defined by a plurality of panel members arranged in a longitudinally extended manner positioned at an acute angle relative to the chamber assembly longitudinal axial characteristics, having an angled lateral edges whereby a first and a second longitudinal ends are provided with wider lateral width, while the medial section of the medium directing assembly is substantially narrower. The medium directed assembly providing a plurality of serially interconnected chambers within the chamber assembly to maximize chamber assembly and heat exchange medium interface, a structured flow path arrangement for the heat exchange medium, as well as means to energize the flow of the heat exchange medium for the desired results.

A web for a rotary heat exchanger is configured for transfer of thermal energy and/or moisture to and/or from a fluid. The web includes first profiled sections and second profiled sections configured to protrude in opposite directions, each a fluid passage. The first and second profiled sections form a plurality of fluid flow channels, each fluid flow channel having a main fluid flow axis and being configured to allow fluid flow at least partially along the main fluid flow axis. Each fluid flow channel is formed by alternating at least one first profiled section and at least one second profiled section along the main fluid flow axis and by aligning the fluid passages of the alternatingly arranged first profiled section(s) and second profiled section(s). Each fluid flow channel has at least one lateral opening allowing fluid flow to at least partially travel between adjacent fluid flow channels.

A heat exchanger element for use in a heat exchanger includes an outer wall formed into a tubular shape including a first portion and a second portion. The first portion is arranged parallel to and is spaced apart from the second portion. A plurality of fin structures extends between the first portion and the second portion of the outer wall. Each of the fin structures defines a flow channel configured to provide fluid communication between an outer surface of the first portion of the outer wall and an outer surface of the second portion of the outer wall. An interior of the outer wall is configured to receive a first fluid while an exterior of the outer wall and each of the flow channels defined by the fin structures are configured to receive a second fluid in heat exchange relationship with the first fluid.

A heat exchanger includes a first fluid carrying conduit extending along a first conduit axis and configured to convey a first fluid at a first temperature, and a second fluid carrying conduit extending along a second conduit axis and configured to convey a second fluid at a cooler, second temperature. The heat exchanger also includes at least one fin having a first opening for coupling to the first fluid carrying conduit and a second opening for coupling to the second fluid carrying conduit. The at least one fin extends along a fin axis that subtends an acute angle or obtuse angle with at least one of the first conduit axis or the second conduit axis.