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| Number | Title | Issue Date |
| 8091618 | Exchange apparatus An exchange apparatus comprised of hollow perfluorinated thermoplastic tubes fusion bonded into a perfluorinated thermoplastic material to form unified terminal end blocks is disclosed. The hollow tubes are shaped by plaiting the tubes into cords and thermally annea... | 01/10/2012 |
| 8079409 | EGR cooler An exhaust gas recirculation (EGR) cooler includes a plurality of tubes and a shell enclosing the tubes. During use, cooling water is supplied to and discharged from the shell, and exhaust gas is guided from a diesel engine into the tubes to be heat exchanged with t... | 12/20/2011 |
| 8025095 | Heat exchanger Disclosed is a heat exchanger, particularly an exhaust gas heat exchanger for an internal combustion engine of a motor vehicle, comprising a housing jacket that is open at both ends, and a tube bundle which is inserted into said housing jacket and is penetrated by t... | 09/27/2011 |
| 8006749 | Seal for tubular heat exchanger Seal for tubular heat exchanger comprising groove with an inner edge; tongue of the diaphragm having front face extending in the radial direction and inner edge parallel to the axis of the channel; the face extending beyond the radial width of the groove in inward d... | 08/30/2011 |
| 8006748 | Sealing arrangement for internal tubesheet for tubular heat exchangers Sealing arrangement for an internal tubesheet for tubular heat exchangers comprising, a gasket fitted between a shoulder and a tubesheet, the gasket being made of spiral wound construction but without any metallic rings and without any locating groove in the adjoini... | 08/30/2011 |
| 7886810 | High-temperature soldered exhaust heat exchanger A heat exchange device includes a first flow path for a first fluid and a second flow path for a second fluid, and the components of the inventive heat exchanger are interconnected by a connection material. Connections that are substantially directly exposed to the ... | 02/15/2011 |
| 7854254 | Systems and methods for making seals in heat exchangers Systems and methods for improving heat exchangers by implementing self-energizing seals. In one embodiment, a U-tube heat exchanger includes a shell enclosure, a tube sheet, a closure and a set of tubes welded to the tube sheet. The tube sheet separates first and se... | 12/21/2010 |
| 7806170 | Heat exchanger In a heat exchanger having a casing in which a joint of the casing and between a core and the casing are brazed and fixed without a gap, the section of a portion in contact with the casing body is formed at a right angle at both ends of an upper edge portion of a he... | 10/05/2010 |
| 7806169 | Heat exchanger, method for manufacturing the same, and heart-lung machine In a heat exchanger including a plurality of tubes 1 through which a first fluid passes, a housing 2 in which the tubes 1 are installed, and sealing members for sealing a second fluid that flows over surfaces of the tubes 1, the housing | 10/05/2010 |
| 7748438 | Heat exchange for medical use A heat exchanger for medical use, comprising a tube bundle formed by a plurality of tubes having a straight axis for the conveyance of a primary fluid, which are embedded at their ends in disks located at the end faces of an outer jacket which is adapted to delimit,... | 07/06/2010 |
| 7394679 | Multi-resistive state element with reactive metal A treated conductive element is provided. A conductive element can be treated by depositing either a reactive metal or a very thin layer of material on the conductive element. The reactive metal (or very thin layer of material) would typically be sandwiched between ... | 07/01/2008 |
| 7377039 | Anti-corrosion protection for heat exchanger tube sheet and method of manufacture A corrosion-resistant alloy metal tube sheet used to construct a shell and tube heat exchanger (50) for cooling fluids with sea water passing through corrosion-resistant alloy tubes (25) contained in a horizontal carbon steel outer shell (1) tha... | 05/27/2008 |
| 7377307 | Vertical heat exchanger A vertical heat exchanger is described, which allows efficient elimination of the gas generated therein and efficient removal of the sludge accumulated therein. The vertical heat exchanger has at least part of one end of a vent pipe formed of an upper tube sheet par... | 05/27/2008 |
| 7367387 | Tube plate for exhaust heat exchanger A tube plate for exhaust heat exchangers, with punched openings to hold the tube ends of a tube bundle, wherein the openings are arranged grid-like with a web width b, and each of the openings has a shear surface with a height h produced by punching, and a bevel of ... | 05/06/2008 |
| 7337834 | Multi-channel heat exchanger and connection unit The invention relates to a connection unit having a multi-channel heat exchanger with high-pressure channels and low-pressure channels and a connection element with a high-pressure reservoir and a low-pressure reservoir, both with a connection for connection. The ax... | 03/04/2008 |
| 7328738 | Heat exchanger An improved heat exchanger which resists fouling of the heat exchange surface by minimizing the temperature difference between the heat exchanger surface and the fluid stream in contact with the heat exchange surface. In one embodiment, a heat exchanger comprises an... | 02/12/2008 |
| 7326811 | Method for production of (meth)acrylic acid by use of a shell-and-tube heat exchanger A shell-and-tube type heat exchanger of the smallest possible length necessary for heat exchange is disclosed which is capable of obtaining uniform distribution of flow of a shell side fluid and substantially eliminating the structural restriction imposed on the she... | 02/05/2008 |
| 7322403 | Heat exchanger with modified tube surface feature A heat exchanger includes a shell that has an inner chamber defined by an inside wall surface. A tube stack disposed within the inner chamber and includes a plurality of flat elongated tubes that define a first fluid flow path. The tubes each include a wire that is ... | 01/29/2008 |
| 7322405 | Multi-pipe heat exchanger apparatus and method of producing the same In a heat exchanger, a plurality of heat conductive pipes forming first passages are provided between an outer wall plate and an inner wall plate. Air flows through the first passages. Second passages are formed between the heat conductive pipes. An exhaust gas flow... | 01/29/2008 |
| 7322398 | Pressure tank A pressure tank includes a liner separated into a cap and a main body. A shell covers the outer surface of the liner. The shell is formed of a fiber reinforced plastic. A heat exchanger is arranged in the liner. A header is connected to the heat exchanger. The heat ... | 01/29/2008 |
| 7308932 | Exchange apparatus An exchange apparatus comprised of hollow thermoplastic tubes infusion bonded into a thermoplastic material is disclosed. In a preferred embodiment the hollow tubes are shaped by plaiting the tubes into cords and then thermally annealing the cords to set the crests ... | 12/18/2007 |
| 7297255 | Mass or energy transfer cartridge and module A mass transfer or energy transfer module is provided which includes a manifold, a cartridge and a bowl which houses the cartridge. The cartridge and bowl are connected to each other at least two flanges which fit into slots of the bowl to form a unitary constructio... | 11/20/2007 |
| 7287579 | Heat exchanger An exemplary heat exchanger includes a heat exchanger core having a core side fluid space and a cover plate and a substantially U-shaped wall fitted at one end with an inlet header and, at an opposing end, with an outlet header, which in combination with the cover p... | 10/30/2007 |
| 7278473 | Exhaust gas heat exchanger and method for the production thereof The invention relates to an exhaust gas heat exchanger for motor vehicles, comprising a cluster of exhaust pipes (10) which are soldered on the front surface thereof to pipe bottoms, and a housing jacket (3, 3b) which is welded to the pipe botto... | 10/09/2007 |
| 7267160 | Heat exchanger In order to provide a heat exchanger with casing having a multiplicity of tubes through the interiors of which a high-temperature gas for heating flows, wherein the thermal stress is smoothly accommodated and wherein a fluid to be heated or a heating fluid flows uni... | 09/11/2007 |
| 7267165 | Heat exchanger of ventilating system A heat exchanger of a ventilating system, including heat exchange plates which are laminated at a predetermined interval and divide an outdoor air path through which outdoor air passes and an indoor air path through which indoor air passes, and a plurality of emboss... | 09/11/2007 |
| 7264040 | Exhaust gas heat exchanger and bypass assembly An exhaust gas heat exchanger and bypass has an intake manifold, an outlet manifold, a duct for a heat exchanger, and a bypass duct. The heat exchanger duct and the bypass duct run in parallel between the intake manifold and the outlet manifold and are sealingly con... | 09/04/2007 |
| 7261148 | Direct expansion cooler high velocity dished head A dished head header assembly for a heat exchanger having a containment body that includes a rounded, or dished, wall portion forming an interior cavity. A flange attaches to the containment body and fastens the header assembly to the heat exchanger. A plurality of ... | 08/28/2007 |
| 7255157 | Heat exchanger for heating of fuel cell combustion air A heat exchanger for a solid-oxide fuel cell assembly. A plurality of parallel tubes conveys fuel cell stack exhaust gas from a first manifold means to a second manifold means. The tubes are highly corrugated to increase the wall area and decrease the wall thickness... | 08/14/2007 |
| 7252138 | Flow through tube plug A method and apparatus for the repair of damaged tubes, such as heat exchanger tubes, comprising inserting a flow through plug into the damaged heat exchanger tube. The flow through plug is tapered and creates a press fit when inserted within the heat exchanger tube... | 08/07/2007 |
| 7246437 | Heat exchanger for cooling exhaust gas and method of manufacturing same A heat exchanger for cooling exhaust gas, around which a liquid cooling medium flows on the outside, including a bundle of rectangular tubes provided as ducts for the exhaust gas whose ends are welded into tube bottoms. The bundle of rectangular tubes is surrounded ... | 07/24/2007 |
| 7240723 | Tube bundle heat exchanger comprising tubes with expanded sections A heat exchanger useful for high temperature applications such as EGR cooling and fuel reformer applications comprises a tube bundle made up of a plurality of tubes, each having at least one end expanded to an enlarged polygonal cross-section, and having central por... | 07/10/2007 |
| 7240724 | Monolithic tube sheet and method of manufacture A monolithic refractory ceramic tube sheet for use in all-ceramic air-to-air indirect heat exchangers, the heat exchanger used in all temperature and all pressure applications. A method for forming the monolithic tube sheet includes casting a refractory ceramic in a... | 07/10/2007 |
| 7237604 | Stacked plate heat exchanger A plate heat exchanger comprising a plurality of plates (12,13) which are stacked against each other and which are of a first and second type in order to form flow channels for a first and second medium. The plates form a heat exchanger block (2) with ... | 07/03/2007 |
| 7237600 | Support surface for heating or cooling food articles and method of making the same A heat transfer support surface for heating or cooling food articles placed adjacent the support surface by circulating a heat transfer fluid in the internal passages of the support surface is disclosed. Circulated fluid is heated or cooled by a source. Support surf... | 07/03/2007 |
| 7237601 | Heat exchanger for cooling a hot gas that contains solid particles A heat exchanger for cooling a hot gas that contains solid particles, comprising heat exchanger tubes through which the hot gas flows, with the tubes being surrounded by a casing, and with ends of the tubes being welded, via weld seams, into bores of respective tube... | 07/03/2007 |
| 7228890 | Heat exchanger with integral shell and tube plates A heat exchanger comprises a shell formed from two joined-together shell members. Each shell member includes a tube plate that is integral with each respective shell member and that defines an axial end of the shell member. The shell members are joined along respect... | 06/12/2007 |
| 7220392 | Fuel conversion reactor A fuel conversion reactor includes a shell-and-tube heat exchanger for controlling the temperature of a hot gaseous mixture produced by catalytic or non-catalytic reaction of a fuel with a gaseous fluid, and for controlling the temperature of the gaseous fluid and/o... | 05/22/2007 |
| 7213639 | Heat exchanger exhaust gas recirculation cooler A two-pass, loop flow heat exchanger includes an inlet plenum that receives a fluid to be cooled, a housing, a plurality of inlet flow passages substantially centrally positioned within the housing and having a first end fluidly coupled to the inlet plenum to receiv... | 05/08/2007 |
| 7204302 | Exhaust gas heat exchanger A tube 101 is constituted by a pair of plates 111a, 111b which are fitted with each other in such a manner as to put an inner fin 101b between the plate 111a and the plate 111b. Differences... | 04/17/2007 |
