Method for controlling the supply of oil to an internal combustion engine, comprising a procedure for detecting a potentially dangerous condition for the correct operation of an internal combustion engine (1). Said condition is the clogging of an oil filter (3) upstream of the engine (1) or the excessive presence of fuel in the lubricant oil. The detection procedure comprises the steps of: changing the flow rate of oil that transits through the filter (3) and that is processed by a pump (2) for lubricating the engine (1); detecting the time that passes between changing the oil flow rate and a detection of a pre-established variation in a parameter connected at least with the pressure downstream of said filter (3), said variation being determined by said change of the flow rate, said filter (3) being placed upstream of the engine (1); comparing said time with pre-established values.

There is provided a bearing lubrication application control system which comprises a digital controller device operably coupled to a lubrication meter and a computer readable medium reader. As such, during lubrication application, the digital controller device is configured for reading bearing data from bearing computer readable media associated with each bearing and also recording an applied lubrication volume for each of the bearings. As such, for a subsequent lubrication application, the digital controller device is configured for calculating a dynamic lubrication schedule for each of the bearings wherein the schedule comprises at least an appropriate lubrication volume to be applied calculated at least according to the stored apply lubrication volume for each of the plurality of bearings.

Provided is a leak-proof lubrication system for a power device, comprising an oil supply pump inlet pipe, an oil supply pump, an oil supply pressure gauge, an oil supply pump outlet pipe, an oil supply filter, a lubricating oil, an oil storage tank, an oil return pipe, an storage tank pressure gauge, a vacuum pump intake pipe, a vacuum pump inlet air filter, a vacuum pump and a vacuum pump exhaust pipe. The system employs a negative pressure operation method in which the pressure of the lubrication system is controlled to be lower than the outside ambient pressure, which allows a small amount of air to flow from the outside to the inside of the lubrication system along with the lubricant to return to the storage tank, preventing leakage of the lubricant from connection joints. It is suitable to be used for gas turbines or other high-speed power machines.

A device for cooling and lubricating a tool during a chip removal machining process, which includes: a first subsystem for cryogenic cooling that includes: a first entry configured to introduce CO.sub.2 in liquid state in a first conduit of the device; a first exit configured to supply CO.sub.2 in liquid state from a second conduit of the device; a third conduit located between the first and second conduit; and means for preventing the formation of dry ice in the first, second and third conduits; and a second subsystem for lubrication that includes means for supplying micro-particles of a cutting oil in liquid state; wherein the first subsystem and second subsystem are independent from each other, and wherein the first subsystem and second subsystem are configured to act either simultaneously or either one alone. Method of operation of the device.

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.

A hydraulic system, for example a seal oil system, includes a hydraulic feeding pump having a motor, a hydraulic motor having a generator, a cooler and a storage tank for receiving hydraulic fluid. The hydraulic feeding pump is configured to draw hydraulic fluid from the reservoir and to direct the fluid to one or more consumers (for example mechanical seals). The hydraulic motor installed downstream of the consumer drives an electric generator. The generator can be coupled to a VFD which controls the speed of the hydraulic motor. The electric power, generated by the generator, is fed back into the power grid.

A bearing lubricator for lubricating a plurality of device bearings in a device includes a solitary monitored bearing and at least one unmonitored bearing. The bearing lubricator includes a reservoir configured to contain lubricant, a plurality of conduits connecting the reservoir to the plurality of bearing, and a mechanism connected to the reservoir for advancing the lubricant from the reservoir to the plurality of device bearings when actuated. The bearing lubricator further includes a solitary sensor for sensing a variable of the monitored bearing and a controller. The controller stores a triggering value of the variable of the monitored bearing. The mechanism advances a substantially identical quantity of the lubricant from the reservoir to each of the plurality of bearings when a signal indicative of the variable is advanced to the controller and when that signal indicates the triggering value of the variable has been met.

An oil delivery system includes a first oil delivery circuit having a first oil distribution line delivering oil to at least one first circuit component part, a first oil pump, and a first switch valve, and a second oil delivery circuit having a second oil distribution line delivering oil to at least one second circuit component part, a second oil pump, and a second switch valve. The first switch valve controls a flow of oil through the first oil delivery circuit based on a difference between a first oil pressure of the first oil delivery circuit and a second oil pressure of the second oil delivery circuit. The second switch valve controls a flow of oil through the second oil delivery circuit based on a difference between the second oil pressure of the second oil delivery circuit and the first oil pressure of the first oil delivery circuit.

A lubrication system configured to supply a lubricant to at least one lubrication point includes a lubricant pump configured to pump the lubricant to the at least one lubrication point, a lubricant distributor configured to distribute the lubricant at the at least one lubrication point, a controller configured to control at least the lubricant pump and/or the lubricant distributor, a lubrication system monitor configured to monitor a monitoring variable of the lubrication system, and a signal transmission device configured to wirelessly transmit a signal indicative of the monitoring variable provided by the lubrication system monitor to the control device and/or to a device functionally associated with the lubrication system and/or to receive data from the control device or from the device functionally associated with the lubrication system.

An automatic lubrication system for automatic and demand-driven charging of a bearing with a lubricant includes an automatic lubrication device configured to automatically charge the bearing with the lubricant, a detecting device configured to detect at least one operating parameter of the bearing, and a data-transmission device that is configured to transmit data from the detecting device to the lubrication device. The automatic lubrication device is configured to charge the bearing with the lubricant based on the operating parameters detected by the detecting device.