A transmission (1) for a motor vehicle (2) includes a transmission housing (3) with an interior space (4) and an oil sump (6). At least one rotating transmission component (5a) is arranged in the interior space (4) of the transmission housing (3). At least one compensating tank (7) is configured for collecting oil from the interior space (4). The compensating tank (7) is fluidically connected to the oil sump (6) via at least one return (8). The particular return (8) delivers a predefined flow back into the oil sump (6) as a function of a power throughput of the transmission (1).

The present invention includes a method of lubricating a gearbox, including moving a lubricant from the gearbox into a gear shroud via a flow-metering orifice in the gear shroud; and distributing the lubricant within the gearbox by operation of a gear turning within the gear shroud.

A lubrication system for a gearbox of a transmission system includes an outlet line that is configured to allow an egress of oil from the gearbox. The lubrication system also includes a scavenging pump that is fluidly coupled with the outlet line and configured to draw oil from the gearbox via the outlet line. The lubrication system further includes a pressure sensor that is disposed in the outlet line and located upstream of the scavenging pump. The pressure sensor is configured to measure a pressure of fluid entering the scavenging pump. The lubrication system further includes a controller that is communicably coupled to the pressure sensor and the scavenging pump. The controller is configured to vary a displacement of fluid from the scavenging pump based on a comparison of the pressure of fluid entering the scavenging pump as measured by the pressure sensor with at least one pre-determined threshold value.

A transmission storage oil level control system includes a first fluid reservoir and a second fluid reservoir separated from the first fluid reservoir by a barrier. A valve positioned in the barrier is controlled to open and close a fluid communication path between the second fluid reservoir and the first fluid reservoir. The valve is normally closed when a temperature of the hydraulic fluid is above a predetermined value. A sensor is positioned in at least one of the first reservoir and the second reservoir. The sensor identifies a condition of a hydraulic fluid. A control device communicates with the valve to apply a signal received from the sensor to selectively open and close the valve when the temperature of the hydraulic fluid is above the predetermined value.

A system includes a gear unit, the gear unit including at least one housing cover, a sensor unit, on which sensors are provided, being provided on the housing cover, the sensors being connected at least electrically to an evaluation unit.

A transmission has a float level sensor in a fluid sump of the transmission case. A shield having a first panel and a second panel connected to and generally perpendicular with the first panel. The first panel cooperates with a first wall of the transmission case in the sump. The second panel cooperates with a second wall and a bottom wall of the transmission case in the sump. The first and second panels are adapted to cooperate with the first wall, the second wall, and the bottom wall of the transmission case to form a generally stagnant well within the fluid sump surrounding the fluid level sensor to decrease fluid motion adjacent to the sensor. The generally stagnant well and the sump are in fluid communication with one another.

A gearbox for a rotary wing aircraft including a sump, a primary lubricant reservoir fluidically connected to the sump, one or more primary lubricant jets fluidically connected to the primary lubricant reservoir, an auxiliary lubricant reservoir fluidically connected to the sump, one or more auxiliary lubricant jets fluidically connected to the auxiliary lubricant reservoir, and at least one valve selectively fluidically connecting the sump and the primary lubricant reservoir based on a first lubricant pressure and the sump and the auxiliary lubricant reservoir based on a second lubricant pressure at the at least one valve.

An axle assembly having an axle housing and a bowl cover. The axle housing may have a center portion that may define a bowl opening and a differential carrier opening that may receive a differential. The bowl cover may be mounted to the axle housing and may cover the bowl opening.

An aircraft is described and includes an aircraft body, a gearbox housing containing a lubricant, and a remote gearbox lubricant level gauging (RGLLG) system including a light source that when activated illuminates an interior of the gearbox housing; at least one light tube for transmitting light from inside the gearbox housing to an observer end of the RGLLG system, and at least one indicator at the observer end of for indicating a level of the lubricant contained within the gearbox based on the light transmitted via the at least one light tube.

A non-pressurized accessory gearbox for an aircraft includes: a housing, one or more gears disposed within the housing, an input rotating member to receive input from a main rotor gearbox via a shaft connected to the one or more gears, and one or more output rotating members in communication with the one or more gears. The gearbox is configured to utilize splash lubrication for moving a lubrication fluid within the housing.