Abstract: An example assembly includes: a main housing (108) having an internal chamber (110) therein; an electric motor (102) disposed in the internal chamber of the main housing and comprising a motor rotor (114); a cooling inner ring (700) disposed in the internal chamber of the main housing about the electric motor, wherein the cooling inner ring comprises one or more motor cooling fluid channels configured to receive cooling fluid from an external source of cooling fluid and allow cooling fluid to flow about the electric motor to cool the electric motor; a hydraulic pump (104) positioned in the main housing, at least partially within the motor rotor of the electric motor; and an enclosure (173) coupled to the main housing and comprising (i) an inverter board (202) disposed therein, and (ii) one or more inverter cooling fluid channels configured to allow cooling fluid from the external source to cool the inverter board.

Abstract: An example assembly includes: a main housing (108) having an internal chamber (110) therein; an electric motor (102) disposed in the internal chamber of the main housing and comprising a motor rotor (114); a cooling inner ring (700) disposed in the internal chamber of the main housing about the electric motor, wherein the cooling inner ring comprises one or more motor cooling fluid channels configured to receive cooling fluid from an external source of cooling fluid and allow cooling fluid to flow about the electric motor to cool the electric motor; a hydraulic pump (104) positioned in the main housing, at least partially within the motor rotor of the electric motor; and an enclosure (173) coupled to the main housing and comprising (i) an inverter board (202) disposed therein, and (ii) one or more inverter cooling fluid channels configured to allow cooling fluid from the external source to cool the inverter board.

Abstract: Provided is a cooling system wherein a first two-phase refrigerant can be circulated by a pump through an evaporator, to a first condenser, to a refrigerant-to-refrigerant heat exchanger and back to the pump. By providing the refrigerant-to-refrigerant heat exchanger in series with the condenser, a first environment can be cooled without having to operate a vapor compression circuit when an ambient temperature outside the first environment is a predetermined amount below an ambient temperature in the first environment.

Abstract: Provided is a cooling system wherein a first two-phase refrigerant can be circulated by a pump through an evaporator, to a first condenser, to a refrigerant-to-refrigerant heat exchanger and back to the pump. By providing the refrigerant-to-refrigerant heat exchanger in series with the condenser, a first environment can be cooled without having to operate a vapor compression circuit when an ambient temperature outside the first environment is a predetermined amount below an ambient temperature in the first environment.