Embodiments of a cold start lubricant distribution system include a lubricant distribution circuit, which fluidly interconnects first and second actively-lubricated work vehicle assemblies onboard a work vehicle. A flow divider section is included in the lubricant distribution circuit and through which lubricant flow is apportioned between the first and second actively-lubricated work vehicle assemblies. A lubricant supply pump is further located in the lubricant distribution circuit upstream of the flow divider section. The cold start lubricant distribution system further includes a lubricant flow modification assembly operably in a cold start mode. When operating in the cold start mode, the lubricant flow modification assembly reduces a volume of lubricant flow supplied to the first actively-lubricated work vehicle assembly through the flow divider section relative to a volume of lubricant flow supplied to the second actively-lubricated work vehicle assembly through the flow divider section.

In a method for monitoring a geared motor, and a system, the geared motor has a gearbox at least partially filled with oil. A measure of the oil level, e.g., a measure of the filling-level height of the oil, is captured, and a measure of vibration is captured at at least one point of the gearbox. A first variable is formed by combining the measure of the oil level and the measure of vibration, and it is monitored whether the value of the first variable exceeds a permissible extent of deviation from a setpoint value or exceeds a threshold value.

A vehicle sensor system includes a fluid sensor configured to be disposed onboard a vehicle system and at least partially extend into a gearbox of a traction motor of the vehicle system. The fluid sensor is configured to output data representative of an amount of a lubricating fluid in the gearbox. The system also includes a positioning system configured to output data representative of movement or an absence of movement of the vehicle system, and one or more processors configured to determine the amount of the lubricating fluid in the gearbox based on the data that is output by the fluid sensor responsive to the data output by the positioning system indicating that the vehicle system has not moved or has moved by less than a designated distance for at least a designated, non-instantaneous period of time.

The invention relates to an adapter plate for connecting a motor and a housing of a gear, having a passage opening for receiving a shaft coupling at least partially, a groove arranged in a first front side of the adapter plate (1, 101) and extending circumferentially around the passage opening, and at least one channel which is in communication with the groove.

The present invention discloses an intelligent lubricant spraying system for a high-speed gear transmission, which comprises an oil tank, an oil pump, a driving gear, a driven gear, and a spray nozzle. One end of the oil pump is communicated with the oil tank through the first oil inlet pipe. The driving gear is rotatably supported above the oil tank. The driven gear is meshed with the driving gear and is rotatably supported above the oil tank. The spray nozzle is communicated with the other end of the oil tank through the second oil inlet pipe. The spray nozzle is supported between the driving gear and the driven gear and is used for spraying a lubricant in the oil tank into a meshing part of the driving gear and the driven gear.

A method for operating an electrically actuable feed pump in a hydraulic circuit, which draws in fluid from a fluid sump with a normal supplying of fluid. The fluid circulated in the hydraulic circuit can be returned back, and air is sucked in at least partially with an undersupply of fluid. The electric motor is integrated in a control circuit, which is provided with a control unit, which actuates the electric motor based on an actual rotational speed and a setpoint rotational speed with an actuation rotational speed. The evaluation unit compares the actual rotational speed to a reference rotational speed and in particular always with an identical current consumption. The evaluation unit then determines based on the comparison whether a fluid undersupply is present.

A system is provided in one example embodiment and may include a first reservoir for a lubricant; a second reservoir for the lubricant, wherein the first reservoir and the second reservoir are interconnected; a first pumping element to pump the lubricant from the first reservoir at a first flow rate; a second pumping element to pump the lubricant at a second flow rate, wherein the first flow rate and the second flow rate are different; and a gearbox coupled to the first pumping element and the second pumping element. The first reservoir may have a larger volume than the second reservoir and the first flow rate may be higher than the second flow rate.

A system for monitoring lubrication of a drive train, including a lubricant pressure sensor to detect a pressure of the lubricant in the drive train and to provide a lubricant pressure signal; lubricant volume sensor to detect a volume of the lubricant in the drive train and to provide a lubricant volume signal; non-contact temperature sensor to detect a temperature of the drive train and to provide a non-contact temperature signal; and logic management system in communication with the lubricant pressure sensor, the lubricant volume sensor, and the non-contact temperature sensor; the logic management system configured to receive and process the lubricant pressure signal, the lubricant volume signal, and the non-contact temperature signal; wherein when the lubricant pressure signal reaches a predetermined minimum pressure level and the lubricant volume signal reaches a predetermined minimum volume level, the logic management system displays non-contact temperature measurement data to a display device.

Detecting the occurrence of loss of effective lubrication in high-speed machinery components is provided. The imminent catastrophic failure may be predicted when torque or power transfer is lost. An estimate of when failure will likely occur throughout the operation of the machinery may be determined as well as the damage state after the liquid lubrication supply has ended or becomes inadequate to lubricate the machinery components effectively. By monitoring the concentration of gas species and the rate of change in concentration of the gas in the gearbox or machinery enclosure after the supply of the primary lubricant ends, determinations may be made about the time to failure and the damage state. The determinations may be based on thermomechanical and chemical processes, on measurement of a baseline system, or by setting a threshold of expected change in gas concentration. These determinations may be transmitted for further decision making and response.

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.