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| Number | Title | Issue Date |
| 7332058 | Heat exchanger and process for devolatilizing polymers using same Disclosed is a process for devolatilizing a polymer including passing the polymer through a devolatizer including a plate heat exchanger wherein the plates of the plate heat exchanger are heated by a plurality of heating tubes and wherein the heating tube including ... | 02/19/2008 |
| 7323270 | Modular fuel-cell stack assembly A modular multi-stack fuel-cell assembly in which the fuel-cell stacks are situated within a containment structure and in which a gas distributor is provided in the structure and distributes received fuel and oxidant gases to the stacks and receives exhausted fuel a... | 01/29/2008 |
| 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 |
| 7250223 | Aluminum heat exchanger excellent in corrosion resistance The present invention provides a heat exchanger which is assembled by brazing an aluminum fin material to the outer surface of an aluminum tube material formed by bending a sheet material, in particular, an aluminum heat exchanger which can be suitably used as an au... | 07/31/2007 |
| 7210520 | Heat exchanger A heat exchanger according to the present invention has a plurality of tubes, header tanks and a support. Fluid flows through the plurality of tubes. The header tanks have a core plate and a tank body, and are disposed at longitudinal end portions of the plurality o... | 05/01/2007 |
| 7156159 | Multi-level microchannel heat exchangers An apparatus and method of circulating a heat-absorbing material within a heat exchanger. The apparatus comprises a manifold layer coupled to an interface layer. The manifold layer comprises an inlet manifold and an outlet manifold. The interface layer comprises a p... | 01/02/2007 |
| 7143820 | Systems for improved heat exchanger A system in which a heat exchanger includes a core, a plurality of fins extending outwardly from the core, and an element disposed within the cavity of the core. The heat exchanger also includes a first cap coupled to the first end of the core, and a second cap coup... | 12/05/2006 |
| 7096860 | Charge cooling circuit for a multi-cylinder internal combustion engine with a turbo-supercharger In a charge-air cooling circuit for a multicylinder internal-combustion engine 1 with a turbo-supercharger 2, downstream from the turbo-supercharger 2 the charge air fed to two separate charge-air coolers 6, 6′, whereby the first charge... | 08/29/2006 |
| 7070874 | Fuel cell end unit with integrated heat exchanger An end unit for a fuel cell stack is described that contains an integrated heat exchanger for superheating the fuel gas before delivery to the stack. Heat is transferred from the hot cathode outlet stream to the cool fuel inlet stream in a space adjacent the stack's... | 07/04/2006 |
| 6964296 | Heat exchanger Heat exchange inefficiencies found in round tube plate fin heat exchangers are eliminated in an aluminum heat exchanger that includes first and second headers (20), (22) and at least one flattened tube (24), (70) extending between the hea... | 11/15/2005 |
| 6929744 | Sludge treatment at a mesophilic temperature A method of treating sewage sludge comprises incubating raw sludge at a temperature in the mesophilic range to reduce the pathogen content of the sludge. ... | 08/16/2005 |
| 6920919 | Heat exchanger An improved heat exchanger includes a first tube (10) of generally circular cross section having a relatively large inside diameter and being U-shaped with opposite ends (12,14) adjacent one another. A second tube having a cross section that is relativ... | 07/26/2005 |
| 6908555 | Biosolids flow-through thermophilic treatment process A method of treating wastewater sludge includes pumping, continuously, raw sludge into a first digester and treating the raw sludge at a specific temperature of between about 51° C. to 60° C.; transferring the treated wastewater sludge to a batch tank; treating th... | 06/21/2005 |
| 6808015 | Boiling cooler for cooling heating element by heat transfer with boiling A boiling cooler has a heat exchange part in which refrigerant vapor performs heat exchange with cooling water. The refrigerant vapor is produced from liquid refrigerant that is boiled and gasified by heat transferred from a heating element. In this boiling cooler, ... | 10/26/2004 |
| 6793013 | Polygonal heat exchange chamber including a tapered portion lined with water tube panels and method of lining a tapered portion of a polygonal heat exchange chamber with such panels A vertical polygonal heat exchange chamber includes an upper opening, a lower opening, and an enclosure formed between the upper and lower openings. The enclosure includes at least one tapered portion that narrows in a direction toward one of the openings. The taper... | 09/21/2004 |
| 6761212 | Spiral copper tube and aluminum fin thermosyphon heat exchanger The present invention is directed to a thermosyphon heat exchanger. The thermosyphon system eliminates the need for costly and inefficient moving parts in the cooling system. The system also minimizes failures rendering the system inoperable by eliminating mechanica... | 07/13/2004 |
| 6748763 | Multistoreyed bath condenser The invention relates to a bath condenser with a condenser block (1) that has evaporation passages (8) for a liquid and liquefaction passages (2) for a heating medium. The condenser block (1) has at least two circulation sections (7 | 06/15/2004 |
| 6374632 | Receiver and refrigerant cycle system In a receiver for separating gas refrigerant and liquid refrigerant and for storing liquid refrigerant for a refrigerant cycle, refrigerant form a condensing portion of a condenser flows into an upper side of a tank member of the receiver from a first ref... | 04/23/2002 |
| 6360699 | Device for heating fluid Device for heating fluid, comprising: a first section for heating the fluid in which fuel and air are mixed and combusted; a second section for heating the fluid which is disposed substantially in the line of the combustion section and in which a number o... | 03/26/2002 |
| 6206091 | Process and apparatus for treating waste An apparatus and method for the treatment of waste solids that allows for the direct transfer of heat between hot waste solids and cold waste solids in a tube-in-tube heat exchanger. Cold solid waste is moved from a cold solid waste source through one tub... | 03/27/2001 |
| 6189604 | Heat exchanger for inside/outside air two-passage unit A heat exchanger in which refrigerant flows has a first core portion disposed in a first air passage for exchanging heat with inside air and a second core portion for exchanging heat with outside air. The second core portion is disposed at a downstream si... | 02/20/2001 |
| 6047768 | Process and apparatus for treating waste The present invention includes a method, an apparatus, and a system for the treatment of waste. The method includes the steps of providing a cold waste solids tank that has a cold solids batch therein. The cold solids batch is transferred, after being war... | 04/11/2000 |
| 6012514 | Tube-in tube heat exchanger A tube-in-tube heat exchanger for exchanging heat between two fluids is provided. The heat exchanger has at least one tube pair; spaced apart first and second tube sheets; first and second annular flow chambers; and first and second inner tube flow chambe... | 01/11/2000 |
| 5964280 | Multiple fluid path plate heat exchanger Space and weight constraints on heat exchangers performing heat exchange operations between three or more fluids are eliminated in a structure including a plurality of plates (10, 12) arranged in a stack (13). Collars (36, 38) about openings (30, 32) the ... | 10/12/1999 |
| 5948459 | Continuous cheese molding, chilling and cutting apparatus and method The method and apparatus for continually molding, chilling and cutting cheese of the present invention utilizes an elongate molding tube having an inlet end and an outlet end, and a pump/movement mechanism for forcing cheese curd into the inlet end of the... | 09/07/1999 |
| 5771963 | Convective countercurrent heat exchanger A convective countercurrent heat exchanger comprises a nest of pipes (36) which is arranged in a cylindrical shell (35) and is equipped with ribbed pipes (37). The pipes through which a liquid flows are connected to a collector (33, 34). The shell is prov... | 06/30/1998 |
| 5667005 | Heat exchanging unit and heat exchanging apparatus A heat exchanging unit is provided that includes a closed vessel separated into first and second compartments by a vertical partition plate thereby leaving a passage above the vertical partition plate. The first compartment has a cooling medium inlet pipe... | 09/16/1997 |
| 5586599 | Heat exchanger The invention relates to a heat exchanger of the type which is constructed from a number of heat exchanger elements (1) consisting of a tubular jacket (2) with thermal transfer tubes (3) lying within the jacket. The heat exchanger elements (1) are joined ... | 12/24/1996 |
| 5417274 | Heater for physiological solutions effective at both low and high flow rates A heater for physiological solutions that is effective at low and high flow rates includes first and second heat exchangers that have different fluid heating characteristics. The first heat exchanger is capable of heating solutions at high flow rates, whi... | 05/23/1995 |
| 5390730 | Fluid cooling system A vessel-type fluid cooling system includes an upper mixing chamber and a lower holding chamber, the chambers being separated by a transverse separating wall. One or more cooling tubes extend between the mixing chamber and the holding chamber, and cooling... | 02/21/1995 |
| 5385203 | Plate fin heat exchanger built-in type multi-stage thermosiphon According to the present invention there is provided a small-sized thermosiphon free from deterioration in its cooling efficiency caused by pressure loss of a refrigerant and in which a two-phase flow of a fluid to be cooled is sure to be distributed unif... | 01/31/1995 |
| 5271454 | Method and apparatus for removing heat generated in a spacecraft Heat is removed from a spacecraft under zero gravity and under various accelerations, by a heat exchange contact between a cooling liquid or coolant and an evaporant or medium to be evaporated. The coolant flowing in at least one liquid cooling circulatio... | 12/21/1993 |
| 5162020 | Automotive air-conditioner with variable-length damper An air-conditioner has a heater core in an air passage. A bypass passage is formed within the air passage and at a side portion of the heater core. A holding shaft is pivotally disposed at the boundary between an air-flow through the heater core and an ai... | 11/10/1992 |
| 5148858 | Heat exchanger connected to a waste water discharge conduit A water discharge conduit is disposed in a downwardly inclined direction for receiving a flow of waste water at an upper end, for example, from baths, showers and the like. A water trap is disposed below the conduit in parallel relation and has an intake ... | 09/22/1992 |
| 5121791 | Barrel type fluid heat exchanger and means and technique for making the same The barrel assembly of the heat exchanger is manufactured with abutment joints between the housing and the headers thereof, and is clamped together along the axis of the assembly by a rod extending through the respective headers, and the housing, parallel... | 06/16/1992 |
| 4989670 | Heat exchanger A heat exchanger unit comprises a plurality of heat exchangers of a construction in which a number of tubes are mounted on mounting plates, which additionally serve as manifolds, in a manner such that the tubes maintained in spaced relation while being tw... | 02/05/1991 |
| 4962810 | Heat exchanger A multipass heat exchanger comprising an arrangement of a plurality of heat exchanger modules, each module having a plurality of passes for passage of a first heat exchange fluid and a plurality of tubes across such passes for passage of a second heat exc... | 10/16/1990 |
| 4946098 | Central heating installation with a hot water circuit for domestic usage A central heating installation provided with a hot tap water circuit for domestic usage includes a heating apparatus having an enclosure the inner portion of which is provided with a burner, notably a gas burner, and on which is possibly wound or a heatin... | 08/07/1990 |
| 4915164 | Heat exchanger A heat exchanger includes a plurality of in-line segments for alternately enveloping one fluid flow with another fluid flow with the fluid flow exchange occurring at the junction of adjacent segments through a geometric surface mathematically termed a com... | 04/10/1990 |
| 4890670 | Cross-flow heat exchanger To permit high-temperature differential cross flow of an initially cool, heat absorbing medium and an initially hot, heat releasing medium, with temperature differences in the order of 1000° and higher, and to prevent localized thermal overload, the heat... | 01/02/1990 |
