323results about "Spacing means" patented technology

A heat exchanger A1 includes a partition 19 partitioning the space 35 surrounded by a coiled tube 60 at an axially intermediate portion of a housing 2 into a first and a second regions 35a and 35b and partitioning the coiled tube 60 into a first and a second heat exchanging portions HT1 and HT2. The combustion gas supplied to the first region 35a flows to a combustion gas path 36 by passing through a clearance 61 of the first heat exchanging portion HT1 and then passes through a clearance 61 of the second heat exchanging portion HT2. With this structure, the amount of heat recovery is increased, and the heat exchange efficiency is enhanced while simplifying the overall structure of the heat exchanger A1 and reducing the size of the heat exchanger.

A vapor chamber structure includes a casing, a working fluid, a wick layer, a plurality of structure strengthening bodies, and a plurality of backflow accelerating bodies. The casing has an airtight vacuum chamber. The working fluid is filled into the airtight vacuum chamber. The wick layer is formed on a surface of the airtight vacuum chamber. The structure strengthening bodies are respectively arranged in the airtight vacuum chamber for supporting the casing. The backflow accelerating bodies are respectively arranged in the airtight vacuum chamber for increasing the backflow velocity of the working fluid. Therefore, the present invention can maintain the completeness of the vapor chamber structure and increase the backflow velocity of the working fluid due to the match of the structure strengthening bodies and backflow accelerating bodies. Because the backflow velocity of the working fluid is increased, the heat-transmitting efficiency is increased.

An economically manufactured heat exchanger is provided and includes a plurality of elongated, straight, flat tubes (16), each formed of two identical halves (78,80) joined to each other in mirror image fashion and each having opposed open ends and all arranged in a stack (18). At least one spacer wall (36) 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 (10) contains the stack and includes spaced headers (20,22) with each header including a tube slot for the adjacent end of each tube (16) in the stack (18). Spacers (26) 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 (30) is located in the housing (10) near each end thereof and is in fluid communication with the second fluid flow path (28).

Air conditioning units, methods of manufacturing, inventories, and buildings wherein certain heat exchanger modules are combined to make air conditioning units. In some embodiments, different combinations of different size modules are used to produce air conditioning units having different capacities wherein some identical modules are used in different size units. Various heat exchanger assemblies include spacers between modules, bends formed after modules are assembled into heat exchanger assemblies, attachment rails at the ends of the modules, inactive multi-tubes at the top and bottom of the modules, copper tubing between aluminum modules to facilitate field replacement of individual modules, name plates that attach between modules, attachment clips or spacers that snap attach to the modules, or a combination thereof, as examples.

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 in level 111c are formed on the second plate 111b, which fits inside, which differences in level each protrude inwardly by a distance equal to the thickness of the first plate 111a, whereby the outer wall surface of the tube 101 is made substantially level thereover. A gap which is formed between the outer wall surface of the tube 101 and a core plate, when the tube is passed through the core plate, can be as small as possible whereby the brazing properties can be improved.

A thermal energy storage material (TESM) system (and associated methods) that reproducibly stores and recovers latent heat comprising i) at least one first metal containing material including at least one first metal compound that includes a nitrate ion, a nitrite ion, or both; ii) at least one second metal containing material including at least one second metal compound; and iii) optionally including water, wherein the water concentration if any is present is less than about 10 wt. %; wherein the TESM has a liquidus temperature, T_L, from about 100° C. to about 250° C.; and wherein the TESM exhibits a heat storage density from 300° C. to 80° C. of at least about 1 MJ/l; so that upon being used in a system that generates heat, at least a portion of the heat is captured and stored by the TESM and subsequently released for use, and the system is generally resistant to corrosion at temperatures of about 300° C.

A heat exchanger for a battery has fluid-carrying panels and defines a multi-sided enclosure for enclosing at least two sides of the battery. The heat exchanger has first and second fluid-carrying panels defining first and second flow channels, where the first and second fluid-carrying panels are arranged at an angle to another. The heat exchanger may also include a third fluid-carrying panel defining a third flow channel, and being arranged at an angle to the second fluid-carrying panel. The heat exchanger has first and second plates sealingly joined together along their peripheries and defining a fluid flow passageway between their central fluid flow areas. The second plate may be compliant, its central fluid flow area being deformable away from the central fluid flow area of the first plate in response to a pressure of a fluid inside the fluid flow passageway.

End rings are coupled with upper and lower ends of a cylindrical body tube. A plurality of first heat exchanger tubes are fitted and held in holes provided in a pair of first tube plates. A plurality of second heat exchanger tubes are fitted and held in holes provided in a pair of second tube plates. The inside of each first heat exchanger tubes forms a first-fluid passage for carrying a reformed gas. The space defined between an outer wall of each first heat exchanger tube and an inner wall of the corresponding second heat exchanger tube forms a second-fluid passage for carrying a coolant. The space defined among an inner wall of the body tube and outer walls of the second heat exchanger tubes form a third-fluid passage for carrying compressed air.

A method for an internal combustion engine includes the steps of collecting exhaust gas in a volume (502) and flowing exhaust gas out of the volume in a first and a second portions (504). The first portion forms a tailpipe gas stream (506), and the second portion forms an EGR gas stream (508). The tailpipe gas stream goes through a turbine (510), and is heated in a heat exchanger (512). The heat exchanger transfers thermal energy out of the EGR gas stream (516) to heat the tailpipe gas stream. The EGR gas stream is recirculated into an intake of the internal combustion engine (518).

In an air/refrigerant heat exchanger, particularly for a motor vehicle air conditioning system, including a plurality of flat tubes arranged in closely spaced relationship so that a narrow flow passage for air is formed therebetween, the flat tubes include passages through which refrigerant is conducted in the longitudinal direction of the flat tubes and are provided on their outer surfaces with longitudinal parallel recesses and projections such that the flat tubes are wave-shaped the recesses and projections flattening out toward the narrow ends of the flat tubes and provide for narrow flat rectangular end sections.

A regenerator core for use in a gas turbine regenerator has integral manifold openings formed in the tube plates used to make up the core and has special reinforcing elements which provide high pressure containment in critical portions of the plate-and-fin heat exchanger construction. The reinforcing elements include a series of hoops of U-shaped cross section which are used to bridge the juncture lines of the heat exchanger manifolds. An outer channel region of the hoops is provided with a reinforcing strip of gusset material. The hoops with their reinforcing strips provide structural reinforcement in the region between the manifolds and the conventional side bar reinforcing members in the central core section.

A heat exchanger unit has tubes each having a body section and at least one of an inner pipe section and an outer pipe section extending from the body section and defining an opening at an end. Each of the inner pipe section and the outer pipe section has a first portion and a second portion adjacent to the first portion. The tubes are stacked such that the body sections are spaced from each other. Further, the inner pipe section is received in the outer pipe section such that the first portion of the inner pipe section overlaps the first portion of the outer pipe section, and the second portions of the inner and outer pipe sections are located on opposite sides of the overlapped first portions. The first and second portions of the inner pipe section have an outer diameter smaller than an inner diameter of the first and second portions of the outer pipe section.

The invention relates to a plate heat exchanger (1) having a package of heat transfer plates (2), which are provided with through inlet ports (10) forming an inlet channel (12) through the package, and between the heat transfer plates arranged sealing means, which together with the heat transfer plates in every other plate interspace delimit a first flow passage (14) for one fluid and in each of the remaining plate interspaces delimit a second flow passage (13) for a second fluid, wherein the inlet channel (12) communicates with each first flow passage (14) by way of a first inlet passage (15), and is sealed from communication with each second flow passage by the sealing means.

In a vapor chamber and a manufacturing method thereof, the vapor chamber includes a lower metal case, an upper metal case, a plurality of support posts and a working fluid; the upper metal case is tightly engaged with the lower metal case, and a chamber is formed between the upper metal case and the lower metal case; the support posts are accommodated in the chamber and disposed between the upper metal case and the lower metal case, each of the support posts includes a hollow metal member and a capillary structure disposed inside the hollow metal member, and one end of the hollow metal member is soldered and fastened on the upper metal case; and the working fluid is filled in the chamber. Accordingly, advantages of simplifying manufacturing process, shortening manufacturing time and ensuring the quality of the vapor chamber to be stable can be achieved.

An oil cooler is contained in a radiator tank. It includes a connecting pipe having an enlarged diameter portion, a heat exchange part including elements and a communicating passage fluidically communicating the elements, and a pipe connector. The pipe connector has a first retaining portion seated on one side of a wall portion of the radiator tank to contain and fix at least a part of the enlarged diameter portion of the connecting pipe by caulking, and a second retaining portion inserted through a through-hole of the wall portion and an one end portion of the communicating passage to fix the heat exchanger part and the wall portion at the other side of the wall portion by caulking.

A method for an internal combustion engine includes the steps of collecting exhaust gas in a volume (902) and flowing exhaust gas out of the volume in a first and a second portions (904). The first portion forms a tailpipe gas stream (906), and the second portion forms an EGR gas stream (908). The tailpipe gas stream goes through a turbine (910). The EGR gas stream is catalyzed by an oxidizer coating in a heat exchanger, and thermal energy is transferred from the EGR gas stream to the tailpipe stream in the heat exchanger (916).

A lamination type heat exchanging element for use in heat exchange type ventilators and other air conditioning devices eliminates drift in the air passages while maintaining its structural strength, thereby providing high heat exchange efficiency. The heat exchanging element also prevents airflow leakage due to peeling between heat exchanger plates and other components. To achieve this, rectification portions are provided which eliminate drift in the air passages due to different ventilation resistances of the flow channels caused by their different flow channel lengths generated by flow channel division portions, thereby forming a predetermined flow velocity distribution in the counterflow regions.

A method of making a core of, or a micro-channel heat exchanger includes making constructs from wire and sheet material. The constructs are then stacked together according to the desired orientation of the channels for the core. The stacked constructs are then bonded together to form the core.