Apparatus for housing a rotatable component and exchanging heat and methods for manufacturing the same are disclosed. The apparatus includes a first casing and a second casing spaced apart from the first casing and defining a gap therebetween. The apparatus also includes a cooling fluid manifold coupled to a source of a cooling fluid, and a stack of plates coupled to the first and second casings and extending therebetween to fill the gap. The first and second casings and the stack of plates define at least a portion of a pressurized containment area therein. Further, the stack of plates includes a bore in which the rotatable component is received and defines process fluid flowpaths configured to direct process fluid to and/or from the rotatable component. The stack of plates is in fluid communication with the cooling fluid manifold and transfers heat from the process fluid to the cooling fluid.

A cylinder member for cooling and heating, comprising a plate-like profile body which is bent around the axis to form a cylinder shape; the two end faces of the plate-like profile body are fixed by welding; the plate-like profile body is provided with a fluid channel group formed by a plurality of through-holes which are arranged in parallel along the axial direction; the fluid channel group is formed with a fluid channel group inlet and a fluid channel group outlet, such that the member improves the cooling effect, facilitates processing, reduces the processing cost and material cost; under the condition of the same wall thickness, enhances the rigidity of the whole component by pulling corresponding profiles and using a simple bent plate mold can finish the processing.

In some embodiments, a structural heat exchanger is presented that utilizes liquid fuel as a coolant as it travels through the perimeter of a region (e.g., a chamber) of an engine. The shapes of the coolant channels of the heat exchanger may be configured to change pitch angles as it travels to the top of the region, to account for areas of the region that may demand higher cooling properties. In some embodiments, the fuel diverter that allows initial passage of the fuel through the coolant channels may be configured to drive passage of the fluid up through the coolant channels with uniform pressure, even as the volume of fluid decreases the farther the fluid travels from the initial entry point. In some embodiments, this may be implemented as a fuel diverter shaped in an annulus with a gradually decreasing radial cross-section.

The invention provides a heat exchanger for a cooling system of a motor vehicle, in particular a motorcycle. The heat exchanger includes a housing, a supply connection via which a fluid can be supplied to the heat exchanger, a return connection via which the cooled fluid can be discharged from the heat exchanger, and a heat exchange region in which the fluid interacts with a medium in order to be cooled. The fluid dispenses thermal energy to the medium. The supply connection and the return connection are arranged on a common connection side of the housing. The heat exchange region includes multiple heat exchanger tubes through which the fluid flows from the connection side to a side opposite the connection side. A singular discharge tube runs from the opposite side to the return connection. The invention further provides a cooling system and an assembly.

An irrigation system having mobile towers interconnected by spans, a plurality of fluid conduits supported on or formed through the spans and connectable to a source of water, and a drive system for actuating movement or travel of the spans or towers. The fluid conduits may include orifices or sprinkler heads for dispersing water onto a field. The drive system may include a gearbox with gears and lubricant therein. The irrigation system may also include heat exchanger conduits fluidly coupled at one or both ends with the fluid conduits and extending through one or more of the gearboxes, such that irrigation fluid flowing through the heat exchanger conduit from the fluid conduits cools the temperature of the lubricant therein, thus cooling components of the drive system. The irrigation system may also include thermostat-controlled valves for allowing water into the heat exchanger conduits once a threshold temperature is reached.

A transfer-of-mass system for increasing rotational energy output thereof includes a sealed container having a central axis and an outer wall radially spaced apart from the central axis. A liquid partially fills the container. A motor causes the container to rotate about its central axis at a speed of rotation such that the liquid is acted upon by centrifugal forces to move it to the container's outer wall. Energy is applied to the liquid to cause at least a portion of the liquid at the container's outer wall to move towards the container's central axis wherein the container rotates faster than the speed of rotation caused by the motor.

A pressurizing device for compressing a fluid includes a housing, a fluid duct, one or more pressurizing stages each comprising a pressurizing element, a device for forcing an airflow in an air channel through the housing and a liquid-cooling circuit. The liquid-cooling circuit includes a pump for circulating the liquid; liquid-fluid heat exchangers downstream of each pressurizing element; a liquid-liquid heat exchanger for recovery of energy; and a liquid-air heat exchanger located in the air channel. A fluid-air heat-exchanger is provided in the air channel in a fluid duct outlet part of the fluid duct.

Systems and methods for reducing the pressure of a first pressurized fluid, thereby reducing the temperature of the pressurized fluid, and utilization of the reduced-pressure and temperature fluid to cool a second fluid. Such an approach can enable a reduction in the size and weight of a hydraulic system, utilize waste energy in a system, and/or minimize electrical power requirements of a system, among other benefits.

A system is disclosed for cooling at least one pump used to supply fluids to subterranean formations in connection with the recovery of hydrocarbons, where the cooling system includes a cooling tower connected to the at least one pump to remove heat from the at least one pump, with a plurality of fans configured in an array and oriented vertically within the cooling tower, wherein each of the plurality of fans comprises an inner flow path having an output end directed towards the cooling tower output end, and an intake end. The cooling system may further include an exhaust pipe axially located within the cooling tower to direct heated air from the exhaust pipe towards the cooling tower output end.

A system for the recovery of waste heat energy contained in oil in an oil-cooled air compressor, characterised in that the outlet of the oil side of the oil separator (4) is connected to the inlet of the oil side of the heat exchanger (9), and the outlet of the oil side of the heat exchanger is connected to the oil flow divider (10). A method for the recovery of waste heat energy contained in oil in oil-cooled air compressors consists in diverting the receiving medium flow away from the heat exchanger (9) by means of a control device (12), or stopping the receiving medium flow when at least the temperature of the oil returning to the compressor main body (2) is lower than the setpoint or the temperature of the oil entering the heat exchanger (9) is lower than the temperature of the receiving medium.