Example implementations relate to a leak mitigation system for a cooling system in a computing infrastructure. The leak mitigation system may include tank that is pre-pressurized, a valve unit fluidly coupled to the tank and a cooling loop, and controller operatively coupled to the valve unit. The cooling loop comprises one or more tubes to facilitate a flow of a coolant to cool one or more computing devices. The controller may detect a leak of the coolant from the cooling loop, and in response to detection of the leak of the coolant, the controller may operate the valve unit to establish a fluid coupling between the tank and the cooling loop to transfer at least a portion of the coolant away from the cooling loop.

This disclosure relates to a vehicle configured to prevent oil entrapment within a refrigerant system of the vehicle. This disclosure also relates to a corresponding method. An example vehicle includes a refrigerant system configured to circulate fluid including a mixture of refrigerant and oil relative to an evaporator, a controller, and an electronic expansion valve upstream of the evaporator. The electronic expansion valve is responsive to instructions from the controller, and the controller is configured to instruct the electronic expansion valve to open to prevent entrapment of oil within the evaporator or refrigerant lines.

The present disclosure provides a cooling system. The cooling system includes: a first set of fans mounted on an inward-facing side of an air inlet on an outer shell of a case; a second set of fans mounted on an inward-facing side of an air outlet on the outer shell of the case, for generating, in cooperation with the first set of fans, a high-pressure airflow from the air inlet to the air outlet; a first heat sink connected to heat generating component in the case, for absorbing heat from the heat generating component and transferring the absorbed heat to a second heat sink; and the second heat sink mounted on an inward-facing side of the second set of fans and cooled by the high-pressure airflow.

An electric device includes a case, an electric component that is provided in the case and has a main body section and a lead terminal extending from the main body section, the main body section being supported on the case, a circuit board that is provided in the case and has a connecting hole through which the lead terminal is inserted, and a guide member that has a guide hole positioned relative to the connecting hole, the lead terminal being disposed to penetrate through the guide hole.

An electrical-circuit assembly includes an electrical-device and a heat-sink. The heat-sink has a base having a first-surface and a second-surface. The first-surface is in thermal communication with the electrical-device. The heat sink also has a lid having a third-surface and a fourth-surface. The third-surface faces toward the second-surface. The heat sink also has side-walls disposed between the base and the lid extending from the second-surface to the third-surface. The base, the lid, and the side-walls define a cavity. The heat sink also has a porous-structure extending from the second-surface toward the third-surface terminating a portion of the distance between the second-surface and the third-surface thereby defining a void between the porous-structure and the third-surface. The base, the side-walls, and the porous-structure are integrally formed of a common material. The porous-structure is characterized as having a contiguous-porosity network. The heat sink also has a heat-transfer-fluid disposed within the cavity.

This disclosure relates to a vehicle configured to prevent oil entrapment within a refrigerant system of the vehicle. This disclosure also relates to a corresponding method. An example vehicle includes a refrigerant system configured to circulate fluid including a mixture of refrigerant and oil relative to an evaporator, a controller, and an electronic expansion valve upstream of the evaporator. The electronic expansion valve is responsive to instructions from the controller, and the controller is configured to instruct the electronic expansion valve to open to prevent entrapment of oil within the evaporator or refrigerant lines.

Provided herein is an inverter module to power an electric vehicle. The inverter module can include a power module or multiple power modules. The power module can include a capacitor and a heat sink coupled with the capacitor. The power module can include a ceramic plate coupled with the heat sink. The power module can include a locator having a plurality of slots and a plurality of transistors disposed within the plurality of slots. The locator and the plurality of transistors can be disposed over a first surface of the ceramic plate. The power module can include a laminated bus bar disposed over a first surface of the locator. The power module can include a gate drive printed circuit board coupled with the laminated bus bar. The power module can include a dielectric gel tray disposed over a first surface of the gate drive printed circuit board.

Provided herein is an inverter module to power an electric vehicle. The inverter module can include a power module or multiple power modules. The power module can include a capacitor and a heat sink coupled with the capacitor. The power module can include a ceramic plate coupled with the heat sink. The power module can include a locator having a plurality of slots and a plurality of transistors disposed within the plurality of slots. The locator and the plurality of transistors can be disposed over a first surface of the ceramic plate. The power module can include a laminated bus bar disposed over a first surface of the locator. The power module can include a gate drive printed circuit board coupled with the laminated bus bar. The power module can include a dielectric gel tray disposed over a first surface of the gate drive printed circuit board.

A blowing agent composition includes a blowing agent and a nucleating agent. The nucleating agent includes 1,2,2-trifluoro-1-trifluoromethylcyclobutane. The 1,2,2-trifluoro-1-trifluoromethylcyclobutane is present in the blowing agent composition in an amount from about 0.5 wt. % to about 7 wt. % of the blowing agent composition.

A water injector for an aviation cooling system includes a body having a first end, a second end, and an intermediate portion extending therebetween. A conduit extends through the body from the first end to the second end. A spray nozzle is fluidically connected to the conduit and arranged at one of the first end and the second end. A mounting plate is arranged at the other of the first end and the second end. The mounting plate is configured and disposed to secure the body to an aviation cooling component. A filter is supported at the body and is fluidically exposed to the conduit. The filter is configured and disposed to capture particulate flowing into the water injector towards the spray nozzle.