Apparatus and method for supplying lubricant to a plurality of lubrication sites. Embodiments include a pump with venting and non-venting piston return, a pump with stirrer and direct feed mechanism, a pump with CAN system and self-diagnostics, a pump with heated housing and reservoir, a pump with stepper motor and overdrive control and a pump able to be used with a plurality of different types or of lubrication systems.

Apparatus and method for supplying lubricant to a plurality of lubrication sites. Embodiments include a pump with venting and non-venting piston return, a pump with stirrer and direct feed mechanism, a pump with CAN system and self-diagnostics, a pump with heated housing and reservoir, a pump with stepper motor and overdrive control and a pump able to be used with a plurality of different types or of lubrication systems.

An oil debris monitoring sensor includes a multiple of passages within the housing, each of the multiple of passages surrounded by a set of coils to detect a particle. A method for determining a presence of a particle in a system includes a) installing a single sensor in-line with an oil flow path; b) communicating oil through a multiple of passages within the housing of the single sensor; c) detecting a particle through the single sensor; and d) isolating the particle to one of the multiple of passages within the sensor housing.

Herein provided are methods and systems for detecting blockage of an inlet of gas turbine engine. An oil temperature measurement of the engine and an ambient temperature measurement is obtained. The oil temperature measurement is compared to a threshold based on the ambient temperature measurement. Blockage of the inlet of the engine is detected when the oil temperature measurement exceeds the threshold.

Herein provided are methods and systems for detecting blockage of an inlet of gas turbine engine. An oil temperature measurement of the engine and an ambient temperature measurement is obtained. The oil temperature measurement is compared to a threshold based on the ambient temperature measurement. Blockage of the inlet of the engine is detected when the oil temperature measurement exceeds the threshold.

Provided is a life evaluating device that evaluates the life of a lubricant in a machine including a motor and a transmission mechanism that is lubricated by the lubricant and transmits power of the motor to a movable unit. The life evaluating device includes a motor-heat-value calculating unit that calculates a motor heat value on the basis of a current value of the motor, a frictional-heat-value calculating unit that calculates a frictional heat value in the transmission mechanism on the basis of rotating speed of the motor and a coefficient of friction of the transmission mechanism, a lubricant-temperature estimating unit that estimates temperature of the lubricant on the basis of the calculated frictional heat value and the calculated motor heat value, and a life estimating unit that estimates the life of the lubricant on the basis of the estimated temperature of the lubricant.

Provided is a life evaluating device that evaluates the life of a lubricant in a machine including a motor and a transmission mechanism that is lubricated by the lubricant and transmits power of the motor to a movable unit. The life evaluating device includes a motor-heat-value calculating unit that calculates a motor heat value on the basis of a current value of the motor, a frictional-heat-value calculating unit that calculates a frictional heat value in the transmission mechanism on the basis of rotating speed of the motor and a coefficient of friction of the transmission mechanism, a lubricant-temperature estimating unit that estimates temperature of the lubricant on the basis of the calculated frictional heat value and the calculated motor heat value, and a life estimating unit that estimates the life of the lubricant on the basis of the estimated temperature of the lubricant.

The present invention provides an abnormality detector for a rolling bearing including an outer race, and an inner race. The abnormality detector includes a filter configured to prevent metal pieces contained in lubricating oil flowing through the bearing space between the outer and inner races from passing through the filter, while allowing the lubricating oil to pass through the filter so as to flow to the outside space of the bearing space; an electric circuit including a pair of permanent magnets mounted, as a pair of electrodes, to the filter so as to be spaced apart from each other, and lines extending from the respective electrodes to a power source; and an output detector configured to detect a change in electrical output from the electric circuit when metal pieces adhere between the pair of permanent magnets, thereby detecting the state of metal pieces contained in the lubricating oil.

An automatic lubrication device includes a lubricant container configured to receive a lubricant, a lubricant delivery device for delivering the lubricant, a pump configured to pump the lubricant from the lubricant container to the lubricant delivery device, a drive configured to drive the pumping device, the drive being coupled to the pump via a force-transmission device, an internal control device for controlling the drive, and a control panel configured to enter control commands for the internal control device as an interface for an operator. Components of the automatic lubrication device that include potential electrical or non-electrical ignition sources each include at least one suitable type of protection, which makes the potential ignition sources ineffective, so that a potential fire- or explosion-risk emanating from the automatic lubrication device is eliminated when the automatic lubrication device is used in a fire- and/or explosion-endangered environment.

An automatic lubrication device includes a lubricant container configured to receive a lubricant, a lubricant delivery device for delivering the lubricant, a pump configured to pump the lubricant from the lubricant container to the lubricant delivery device, a drive configured to drive the pumping device, the drive being coupled to the pump via a force-transmission device, an internal control device for controlling the drive, and a control panel configured to enter control commands for the internal control device as an interface for an operator. Components of the automatic lubrication device that include potential electrical or non-electrical ignition sources each include at least one suitable type of protection, which makes the potential ignition sources ineffective, so that a potential fire- or explosion-risk emanating from the automatic lubrication device is eliminated when the automatic lubrication device is used in a fire- and/or explosion-endangered environment.