Abstract: A planetary gear mechanism has a rotatable planet carrier, a device for conducting oil, and a housing-fixed oil collecting duct. The oil collecting duct surrounds an area of the planet carrier in the circumferential direction. Oil centrifuged off by the planet carrier is collected in the oil collecting duct. In the installation position of the oil collecting duct, the oil is conducted by a gravitational force in the direction of a lower collection area formed with an outlet through which oil can be discharged. A further outlet, through which oil can be conducted, is provided in front of the collection area with respect to the rotational direction of the planet carrier between an upper area of the oil collecting duct, as it appears in the installation position of the oil collecting duct, and the outlet. Also, an aircraft gas turbine with the planetary gear mechanism.

Abstract: A planetary gear mechanism has a rotatable planet carrier, a device for conducting oil, and a housing-fixed oil collecting duct. The oil collecting duct surrounds an area of the planet carrier in the circumferential direction. Oil centrifuged off by the planet carrier is collected in the oil collecting duct. In the installation position of the oil collecting duct, the oil is conducted by a gravitational force in the direction of a lower collection area formed with an outlet through which oil can be discharged. A further outlet, through which oil can be conducted, is provided in front of the collection area with respect to the rotational direction of the planet carrier between an upper area of the oil collecting duct, as it appears in the installation position of the oil collecting duct, and the outlet. Also, an aircraft gas turbine with the planetary gear mechanism.

Abstract: A device for cooling the pistons of an internal combustion engine by a lubricating oil pump which supplies oil from the lubricating oil circuit to at least on the base side of each piston through at least one supply line having an outlet opening and at least one valve. The at least one valve is a check valve which does not permit oil to be supplied until after a defined pressure is achieved in the lubricating oil circuits and a control unit regulates the lubricating oil pump so as to provide variable pressure in the lubricating oil circuit as a function of engine load.