Abstract: A method for leakage control and localization of leakages in a plate heat exchanger includes supplying a solution containing a fluorescent colorant to one of either a primary passageway or a secondary passageway of the heat exchanger, supplying a clear liquid to the opposite passageway, recycling the clear liquid, and detecting the presence of the fluorescent colorant in the clear liquid.

Abstract: In a cooling package for use in an agricultural combine, a subassembly comprises a radiator and a charge air cooler, with a metal-to-metal seal between the radiator and the charge air cooler, thereby eliminating gaps and preventing air from bypassing cooling cores. A cooling package includes a frame having a flange, a subassembly of a radiator and a charge air cooler being sealingly mounted into the frame and against the flange. A method of manufacturing a cooling package comprises providing a frame having an inner flange, providing a radiator, providing a charge air cooler, connecting the radiator to the charge air cooler to form a subassembly, and mounting the subassembly into the frame to seal against the flange.

Abstract: A rethermalization system for food trays having a hot food side and a cold food side, the system includes a first thermal system having a heating source, a refrigeration coil and a blower; a second thermal system having first and second refrigeration coils and a blower; and a control system operable in one mode to activate the refrigeration coil of the first thermal system and the first refrigeration coil of the second thermal system, and operable in a second mode to activate the heating source of the first thermal system and the first and second refrigeration coils of the second thermal system.

Abstract: An automotive HVAC unit includes a housing defining a first outlet adapted to connect to HVAC ductwork to provide conditioned air to a first temperature zone, a second outlet adapted to connect to HVAC ductwork to provide conditioned air to a second temperature zone, a third outlet adapted to connect to HVAC ductwork to provide conditioned air to a third temperature zone, and a fourth rear outlet adapted to connect to HVAC ductwork to provide conditioned air to a fourth temperature zone within the vehicle. The HVAC unit further includes an evaporator adapted to cool air passing therethrough, a heater core adapted to heat air passing therethrough, a blower adapted to force air through the evaporator and the heater core, and a modular insert mounted within the housing and being adapted to control the flow of conditioned air to the first, second, third and fourth outlets.

Abstract: A heating/cooling control system that can effectively control the temperature of the air discharged at the rear interior of the motor vehicle. The heating/cooling control system includes a front control and a rear control. The front control is capable of operating within a predetermined temperature range. The temperature range of the rear control is determined by the set point of the front control.

Abstract: An oil cooler for a vehicle with an automatic transmission that includes a core contained between two end pipes. A first one of the end pipes includes an oil inlet, for directing oil from the transmission, and an oil outlet, directing oil back to the transmission, and a dividing plate having a flow control orifice. An oil filter is positioned around the flow control orifice to filter the oil flowing through the orifice, thereby removing contaminants from the oil, while the oil flowing through the core is cooled.

Abstract: In a brine temperature control apparatus, the temperature of brine in a tank disposed in a brine fluid circulating passage is controlled using a three-way proportional valve. The three-way proportional valve does not open and close in an abrupt ON/OFF fashion, but rather the degree of opening thereof for supplying chilled brine to the tank is gradually adjusted in proportion to a detection signal indicative of the brine temperature in the tank. Thus, a water hammer problem is avoided, and the coolant circulating circuit including such a three-way proportional valve can be used effectively even with large capacity chiller units.

Abstract: A CPU cooler based on a flow field of impinging jet array includes a cooling base having an array of recesses on a top surface. The cooling base is disposed on a CPU. An orifice plate of a size substantially similar to the cooling base has an array of orifices with each orifice corresponding to a recess of the array of recesses. The orifice plate is spaced above the cooling base by a separation distance. A fan is secured to the CPU, with the cooling base and orifice plate being secured between the fan and the CPU. The fan when activated provides a coolant flow that produces vortical flow structures with enhanced turbulence on each recess by impinging air jets onto the recesses through the orifices corresponding to the recesses, thereby dissipating heat generated fly the running CPU.

Abstract: The air heating capability of an indoor heat exchanger is limited to set the temperature of the indoor heat exchanger to a first predetermined temperature Tel or lower during heating. Thereby, fogging is prevented through re-evaporation of the condensed water in the indoor heat exchanger during heating within an air-conditioning apparatus with a hot water heater core using hot water as the heat source and the heating circuit.