This invention relates to a heat exchanger which is produced by connecting two walls together at a plurality of points by compression molding and sealing the edges thereof.

A heat exchanger, in particular an exhaust gas heat exchanger for a motor vehicle, has tubes through which a first fluid can flow and around which a second fluid can flow, and a headpiece. The headpiece includes a dual-walls structure in at least a part thereof and a distribution chamber that communicates with the tubes.

A heat sink (100) includes a cooling block (105) having a plurality of fins (110) extending through the block to provide a series of coolant channels (112) extending between the fins, the channels having in the interior of the block a venturi narrowing. Beneficially, the channels have coolant entry regions in at least two different regions (115, 120) of the block to direct a plurality of coolant flows into the interior of the block from different directions.Also described is a method of cooling ...

A heat sink is constructed including at least one heat sink fin. Each fin includes an opening sized to fit a thermal device when the fins are heated to a temperature above that of the thermal device. When the fins cool to the temperature of the thermal device they shrink in size and form a tight compression fit around the thermal device.

Disclosed is a heat exchanger, in particular for use in a motor vehicle, in addition to a circuit including a heat exchanger.

The present invention relates to a heat shield for pipes and tubes that is flexible, has an interior insulating layer, and has an exterior reflective layer. A shield may include a flap extending from the shield body for covering a portion of the component not already covered by the shield body. The interior layer faces the exhaust pipe, is made of woven silica, and may include a conductive coating. The exterior layer is an aluminum finish. The heat shield may be secured with stainless steel clam...

An aspect of the present invention provides a heat sink has a side with a pattern that extends at least partially through a thickness of the heat sink. The heat sink also has a thickness no greater than 9 mm. In another embodiment, a heat sink has a side with a pattern that extends at least partially through a thickness of the heat sink. The heat sink also has a ratio of area:thickness, as seen from a plan view, of at least 500:1 when the area and thickness are expressed in units of mm.sup.2 and...

A compact heat exchanger and/or fluid mixing means comprises a bonded stack of plates, the stack comprising at least one group of plates, the group comprising one or more perforated plates (10) sandwiched between a pair of primary separator plates (40, 62, 64), characterised in that each perforated plate (10) has perforations (14) arranged in rows across the plate in a first direction, with a land (16) between each adjacent pair of perforations (14) in a row and with ribs (18) between adjacent r...

A heat pump apparatus that having a refrigerating cycle including a compressor, a gas cooler, a pressure reducing device and an evaporator and is designed so that water can be heated by the gas cooler. A refrigerant such as CO.sub.2 or the like working in a supercritical area is filled and used at a high-pressure side in the refrigerating cycle and a radiator is equipped between the exit of the gas cooler and the pressure reducing device. The refrigerant temperature at the exit of the radiator i...

This specification discloses a heat sink for coolers. The heat sink contains a heat conductive element, a heat dissipating shell covering over the heat conductive element, and a plurality of heat dissipating fins installed on the heat dissipating shell. The heat conductive element is comprised of a heat conductive plate and a heat conductive block installed at the center thereof. The area of the lower surface of the heat conductive block is greater than that of the upper surface thereof. When th...