The invention relates to a plate (105) forming part of a heat exchanger and intended to delimit at least one channel (111) for circulation of a fluid. The plate (105) extends principally along an axis of longitudinal extent (A1). The plate (105) comprises at least one bottom (106), at least one first lateral raised edge (19a) which is inscribed within a first plane (P1) intersecting the axis of longitudinal extent (A1), and at least two openings (110) which are configured such that the fluid enters and exits the channel (111), respectively. The bottom (106) is provided with a rib (113) which extends longitudinally from the first lateral raised edge (109a). The rib (113) is positioned between the two openings (110). The rib (113) is of a sinuous configuration.

A heat-exchanging plate (20), and plate heat exchanger (100) using same. The heat-exchanging plate (20) comprises concave locations (22) and/or convex locations (23). In at least one partial region of the heat-exchanging plate (20), a transitional curved surface between at least two adjacent concave location (22) and/or convex location (23) is configured to be controllable.

A heating, ventilation, and/or air conditioning (HVAC) system includes a reversible valve having an outlet configured to direct refrigerant to a reheat heat exchanger of the HVAC system. The reversible valve is further configured to be in a first configuration to direct the refrigerant through a refrigerant circuit in a first flow direction in a heating mode of the HVAC system and to be in a second configuration to direct the refrigerant through the refrigerant circuit in a second flow direction in a cooling mode of the HVAC system.

A coolant supply device includes a coolant tank having first and second coolant reservoirs arranged in parallel with a predetermined space therebetween and a communicating part arranged between the first and second coolant reservoirs to allow them to communicate with each other, and formed to have a U-shaped overall shape. The coolant supply device further includes pumps pumping up coolant from the second coolant reservoir and supplying the coolant to predetermined destinations. The coolant supplied by the pumps is returned to the first coolant reservoir and flows into the second coolant reservoir through the communicating part. The first coolant reservoir has a first agitating nozzle body disposed therein for discharging coolant to assist a flow of coolant flowing toward the communicating part, and the second coolant reservoir has a second agitating nozzle body disposed therein for discharging coolant to assist a flow of coolant flowing therein from the communicating part.

A heat exchanger includes a core defining a first passageway configured for a first fluid to flow through and a second passageway configured for a second fluid to flow through. The core includes a plurality of unit cells coupled together. Each unit cell of the plurality of unit cells includes a sidewall at least partly defining a first passageway portion, a second passageway portion, a plurality of first openings for the first fluid to flow through, and a plurality of second openings for the second fluid to flow through. Each unit cell of the plurality of unit cells is configured to enable the first fluid to combine and divide in the first passageway portion. Each unit cell is further configured to enable the second fluid to combine and divide in the second passageway portion.

A heat exchanger having a housing, which defines a first volume (V1), and having at least one conduit, which defines a second volume (V2), wherein the housing has an inlet and an outlet and at least one first opening and at least one second opening located opposite the first opening relative to the housing, wherein the at least one conduit extends through the first volume (V1) and connects the at least one first opening of the housing and the at least one second opening of the housing, and is connected at the two ends of the conduit to the housing in a fluid-tight manner. In order to provide a heat exchanger which has an improved possibility for compensating for the differential thermal expansion of the housing and the conduits, the at least one conduit does not extend in a linear manner inside the first volume (V1), and the at least one conduit is monolithically connected in the region of the first opening of the conduit and/or the second opening of the conduit to the housing.

The molten metal heat-exchanger for heating water comprises a recipient containing a metal with a low melting point in its interior, with a tube immersed in the metal and in the interior of the recipient through which the water to be heated circulates. To heat the water a heat source is applied to the recipient heating the metal therein until it changes to a liquid state. If the temperature of the metal in the liquid state is lower than the boiling temperature of water, the exchanger produces hot water, whereas if the temperature of the liquid metal is higher than the boiling temperature of water, the exchanger can produce hot water or steam. The metal to be used in the molten metal heat-exchanger is a metal or metal alloy with a melting temperature of close to 100 C., with gallium, which has a melting temperature of 30 C. and a boiling temperature of 2204 C., being ideal for the application, although currently existing and future metal alloys may be used in the molten metal heat-exchanger.

A system for bypass control within a transmission oil cooler of U-flow design in a motor vehicle includes a thermostat configured to selectively bypass transmission fluid directly from an inlet tank to an outlet tank of the transmission oil cooler in response to a temperature difference within the tanks relative a predefined threshold. The thermostat includes a thermal-sensitive element, such as a bimetal strip, that has one end bendable at a predetermined rate in a predetermined direction in response to a temperature difference between the inlet and outlet tanks of the transmission oil cooler.

A heat exchanger includes a peripheral wall having a polygonal tube shape and partition walls that divide an inside of the peripheral wall into first cells and second cells, the first cells and the second cells extending in an axial direction of the peripheral wall. Ends of each of the first cells in the axial direction are sealed and adjacent ones of the first cells are in communication with one another so that the first cells constitute a first passage having a U-shaped cross section perpendicular to the axial direction. The first passage includes an inflow port and an outflow port that are open in the same surface of the peripheral wall. Each of the second cells constitutes a second passage including an inflow port and an outflow port provided respectively at ends of each of the second cells in the axial direction.

The invention relates to a device, comprising at least one flow chamber (20) having an inlet opening and an outlet opening, said flow chamber being provided for the flow of a medium therethrough. The flow chamber (20) is arranged in a single-piece block element (2) and is at least partly delimited by a diathermal wall in order to effect absorption or release of thermal energy through the wall by means of the medium. The at least one flow chamber (20) is formed in the block element (2) from a plurality of first channels (22) spaced apart from each other, which extend straight and parallel to each other, and a plurality of second channels (23) spaced apart from each other, which extend straight and parallel to each other, the first and the second channels (22, 23) each having two ends and being closed at least at one (27) of the two ends. The second channels (23) are arranged at an angle to the first channels (22), the first channels and the second channels thus crossing. Support pillars (21) having a parallelogram-shaped cross-section are present within each flow chamber (20) between the crossing points of two adjacent first channels (22) and two adjacent second channels (23). A turbulent flow of the medium can be produced very effectively in the device according to the invention.