A heat exchanger for an aircraft engine that allows improvement in heat exchange ratio is provided. The heat exchanger (1) includes a plurality of heat dissipating fins (20, 30). The plurality of heat dissipating fins (20, 30) are arranged on at least one of a surface (2) and a surface (3). Each of the heat dissipating fins (20, 30) has a plate-like shape and has an inlet-side upper edge disposed on the side where a swirl flow (AF1) flows in and an outlet-side upper edge disposed on the side opposite the inlet-side upper edge and on the side where the swirl flow (AF1) flows out, and the inlet-side upper edge intersects the axis of rotation of a fan and extends along the direction in which the swirl flow (AF1) flows at the inlet-side upper edge.

A heat pipe system for conducting thermal energy. The heat pipe system includes a sealed tube having along its length a reservoir region, an evaporator region, and a condenser region, the tube having a first end and a second end and an inside wall. The system also includes a wick disposed adjacent the inside wall of the tube, the wick including a first portion at the first end of the tube and a second portion adjacent the first portion, wherein the first portion of the wick is thicker than the second portion of the wick, and wherein the second portion of the wick does not extend to the second end of the tube. The system also includes a working fluid contained within the tube.

A heat pipe system for conducting thermal energy. The heat pipe system includes a sealed tube having along its length a reservoir region, an evaporator region, and a condenser region, the tube having a first end and a second end and an inside wall. The system also includes a wick disposed adjacent the inside wall of the tube, the wick including a first portion at the first end of the tube and a second portion adjacent the first portion, wherein the first portion of the wick is thicker than the second portion of the wick, and wherein the second portion of the wick does not extend to the second end of the tube. The system also includes a working fluid contained within the tube.

A heat sink structure and a manufacturing method thereof. The heat sink includes a main body having multiple main body connection sections and multiple radiating fins each having a connection section. The main body has a first end and a second end. The first and second ends define a longitudinal direction. The multiple radiating fins are placed in a mold. A mechanical processing measure is used to high-speed impact the main body so as to thrust the main body into the mold. Accordingly, the connection sections of the radiating fins placed in the mold are high-speed thrust into the main body connection sections and moved in the longitudinal direction to the second end of the main body to tightly integrally connect with the main body.

A heating apparatus comprising a heating chamber in which a heater is configured to heat a heating liquid, a heat exchanger configured to receive the heating liquid from the heating chamber and to transfer heat energy from the heating liquid to a separate heating fluid and a pressure regulator configured to control a pressure inside the heating chamber, wherein the regulator is coupled at a first side to a pressure in the heating chamber and at a second side to atmospheric pressure outside the apparatus. A method of heating is also described.

A heating apparatus comprising a heating chamber in which a heater is configured to heat a heating liquid, a heat exchanger configured to receive the heating liquid from the heating chamber and to transfer heat energy from the heating liquid to a separate heating fluid and a pressure regulator configured to control a pressure inside the heating chamber, wherein the regulator is coupled at a first side to a pressure in the heating chamber and at a second side to atmospheric pressure outside the apparatus. A method of heating is also described.

A submersible heat-exchanging apparatus for installation into storage tanks used for containing industrial oils. The apparatus comprises a cylindrical heat-exchange component with one end sealingly engaging a terminal plug and the other end sealingly engaging and communicating with a coupling manifold having opposed inflow and outflow ports. A flow-directing elongate insert is provided with one end configured to engage the coupling manifold interposed the inflow and outflow ports, and the other end provided with an aperture and configured for abutting the terminal plug. The flow-directing elongate insert slidingly contacts and cooperates with the inner walls of the heat-conductive conduit thereby partitioning the heat-conductive conduit into two opposed fluid transmission channels wherein one channel communicates with the inlet port and the other channel communicates with the outlet port. The coupling manifold sealingly engages an aperture provided in the storage tank whereby the heat-exchange component extends into the tank.

A submersible heat-exchanging apparatus for installation into storage tanks used for containing industrial oils. The apparatus comprises a cylindrical heat-exchange component with one end sealingly engaging a terminal plug and the other end sealingly engaging and communicating with a coupling manifold having opposed inflow and outflow ports. A flow-directing elongate insert is provided with one end configured to engage the coupling manifold interposed the inflow and outflow ports, and the other end provided with an aperture and configured for abutting the terminal plug. The flow-directing elongate insert slidingly contacts and cooperates with the inner walls of the heat-conductive conduit thereby partitioning the heat-conductive conduit into two opposed fluid transmission channels wherein one channel communicates with the inlet port and the other channel communicates with the outlet port. The coupling manifold sealingly engages an aperture provided in the storage tank whereby the heat-exchange component extends into the tank.

The compact tube and plate condenser with cooling fins is similar to a conventional compact tube and plate condenser, but with the addition of thermally conductive cooling fins for enhancing heat transfer with the external environment. The compact tube and plate condenser with cooling fins includes a serpentine tube mounted on a thermally conductive plate. The serpentine tube has opposed inlet and outlet ports for respectively receiving and outputting a refrigerant fluid. The compact tube and plate condenser is folded in a substantially spiral configuration. Additionally, a plurality of thermally conductive cooling fins are mounted on the thermally conductive plate. The serpentine tube, which is preferably formed from a thermally conductive material, the thermally conductive plate, and the additional thermally conductive cooling fins each effect heat exchange between the refrigerant fluid and the external environment.

A heat exchange system for a turbomachine includes a heat exchanger that has a support wall extending along a longitudinal direction L and a plurality of fins each extending along a radial direction from a radially external surface of the support wall. The heat exchanger further includes a first profiled wall arranged upstream from the fins and configured to guide and slow down the flow of air entering the heat exchanger through the fins. A second profiled wall is arranged downstream from the fins and configured to accelerate the flow of air leaving the heat exchanger. Each first and second profiled wall is attached to the support wall via support elements extending radially from the radially external surface.