A thermal management system includes a receiver configured to store a refrigerant fluid; a refrigeration system having a refrigerant fluid path that includes the receiver, and at least one evaporator disposed in the refrigerant fluid path. The refrigeration system is configured to receive the refrigerant fluid from the receiver through the refrigerant fluid path. The at least one evaporator is configured to receive the refrigerant fluid and to extract heat from at least one heat load having a specified thermal inertia that is in at least one of thermal conductive or convective contact with the at least one evaporator.

A refrigeration cycle apparatus includes a refrigerant circuit including a compressor, a condenser, a pressure reducing device, and an evaporator connected by a refrigerant pipe. A refrigerant including a refrigerant having flammability is used as refrigerant circulating in the refrigerant circuit. The evaporator and the pressure reducing device are accommodated in a unit. The evaporator is disposed in the unit in such a manner that a linear distance between a refrigerant inlet of the evaporator and a refrigerant outlet of the pressure reducing device is shorter than a linear distance between a refrigerant outlet of the evaporator and the refrigerant outlet of the pressure reducing device.

The invention relates to separator for separating gas bubbles and/or particles from a liquid. The separator comprises a collection chamber, a fluid inlet, a fluid outlet, and a first fluid flow path extending from the fluid inlet through the collection chamber to the fluid outlet. The separator includes at least one separating element arranged for separating gas bubbles from the liquid arranged in the first fluid flow path. The separator further includes at least one plate arranged in the collection chamber such that the plate defines a passage forming a second fluid flow path at least partially bypassing the separating element.

A flange-mounted inline valve arrangement includes a flange having an internal fluid passage, and an inline electrically-operable valve coupled to the flange. The inline valve includes a valve body and a valve member movable relative to the fluid passage in the flange for controlling flow. The valve arrangement also includes an electrical feed that connects to the electrically-operable valve through the flange for enabling an electrical connection external to the flange and other system piping. At least part of the electrical feed may be in a flow path and is fluidly sealed to prevent electrical shorts. The valve arrangement may be installed into the system as a single unit with an exterior coupling of the electrical feed on an exterior part of the flange to easily make the external electrical connection. The valve arrangement may be used in a chiller, where the inline valve is an electronic expansion valve.

A packaged, pumped liquid, evaporative-condensing recirculating ammonia refrigeration system with charges of 10 lbs or less of refrigerant per ton of refrigeration capacity. The compressor and related components are situated inside the plenum of a standard evaporative condenser unit, and the evaporator is close coupled to the evaporative condenser. Single or dual phase cyclonic separators may also be housed in the plenum of the evaporative condenser.

A thermal management system includes a receiver configured to store a refrigerant fluid; a refrigeration system having a refrigerant fluid path that includes the receiver, and at least one evaporator disposed in the refrigerant fluid path. The refrigeration system is configured to receive the refrigerant fluid from the receiver through the refrigerant fluid path. The at least one evaporator is configured to receive the refrigerant fluid and to extract heat from at least one heat load having a specified thermal inertia that is in at least one of thermal conductive or convective contact with the at least one evaporator.

An oil separator includes a separation container. The separation container has a side surface portion to which an inlet pipe is attached. The separation container has an upper surface portion to which an outlet pipe is attached. An oil reservoir is provided in a lower portion of the separation container. The separation container has a lower surface portion to which an oil return pipe is attached. The separation container has an inner wall surface provided with a liquid passage section. The liquid passage section is provided with a groove. The groove is disposed to extend in a direction of gravity toward the oil reservoir. The groove is formed to be gradually increased in depth from an upper portion of the groove toward a lower portion thereof.

A cooling device includes a first evaporation unit, a second evaporation unit, a first condensation unit, a second condensation unit, common piping, a compressor, an expansion valve, a first valve, and a second valve. The common piping combines liquid-phase refrigerant flowing from the first condensation unit and liquid-phase refrigerant flowing from the second condensation unit. The first valve adjusts the liquid-phase refrigerant amount flowing into the first evaporation unit. The second valve adjusts the liquid-phase refrigerant amount flowing into the second evaporation unit. In addition, the pressure inside the common pipe is greater than the respective pressures inside the first evaporation unit and the second evaporation unit.

Thermal management systems for cooling high-power, low-duty-cycle thermal loads by rejecting heat from the thermal loads to the ambient environment are provided. The thermal management systems include a two-phase pump loop in fluid communication with a vapor compression system loop, evaporators disposed in parallel between the two-phase pump loop and the vapor compression system loop, and a thermal energy storage loop including a cold-temperature tank and a warm-temperature tank thermally coupled to the two-phase pump loop and the vapor-compression system loop. Methods of transferring heat from one or more thermal loads to an ambient environment are also provided.

Thermal management systems for cooling high-power, low-duty-cycle thermal loads by rejecting heat from the thermal loads to the ambient environment are provided. The thermal management systems include a two-phase pump loop in fluid communication with a vapor compression system loop, evaporators disposed in parallel between the two-phase pump loop and the vapor compression system loop, and a thermal energy storage loop including a cold-temperature tank and a warm-temperature tank thermally coupled to the two-phase pump loop and the vapor-compression system loop. Methods of transferring heat from one or more thermal loads to an ambient environment are also provided.