A cooling lubrication system comprises a dry sump, an oil tank, and a pump system that operates an oil circuit in which an oil pump delivers oil from the dry sump into the oil tank, and the pump system comprises a vane cell pump and a gerotor pump on a shaft.

A system. The system includes a power source, a control module of a machine, and a fluid component. The fluid component is configured to establish an electrical connection between the power source and the control module during performance of a fluid operation on the machine when the machine is powered down.

A fuel and oil system includes a fuel pump, an oil pump, and a fixed electrical drive. A first electric motor controller of the fuel and oil system supplies a variable electrical drive, and a second electric motor controller supplies a variable electrical drive. The fuel pump is selectively connected to and driven by the first electric motor controller or the second electric motor controller. The oil pump is selectively connected to and driven by the second electric motor controller or the fixed electrical drive.

An electric oil pump system integrated with a heat exchanger capable of reducing installation space and cost may include: an the electric oil pump including a motor and a pumping part operated by power of the motor to suck and send oil under pressurizing to an oil-used part; and a heat exchanger to exchange heat between the pressurized oil sent by the electric oil pump and coolant cooled at a radiator while the coolant and the pressurized oil pass through the heat exchanger. In particular, the heat exchanger is directly coupled to the electric oil pump and the oil-used part, respectively, and integrated with each other.

An electric oil pump includes a motor part having a shaft; a pump part that is driven by the motor part via the shaft and discharges oil; and a control part configured to control an operation of the motor part. The motor part includes a rotor, a stator, and a motor housing in which the rotor and the stator are accommodated. The pump part includes a pump rotor attached to the shaft and a pump housing having a housing part in which the pump rotor is accommodated. The control part includes an electronic component and a board having a surface on which the electronic component is mounted. The board is disposed outside the stator in a radial direction and within a range of the motor part in the axial direction, and the surface of the board is disposed to face the stator and extends in the axial direction.

A lubricant system for providing a lubricant to a machine includes one or more sensors configured to measure a physical property of the lubricant system, and a controller in communication with the one or more sensors. The controller is configured to receive measurements of the physical property from the one or more sensors, determine an operating state of at least a portion of the lubricant system based at least in part on the measurements of the physical property, and determine a presence of water in the lubricant based at least in part on the measurements of the physical property.

A cooling system includes: (a) a first pump to be driven with vehicle running; (b) a lubricating passage for supplying the lubricant from the first pump, to a lubrication-required part; (c) a second pump to be driven by a drive source other than a drive source of the first pump; (d) a cooling passage for supplying the lubricant from the second pump, to a rotary electric machine via a heat exchanger provided in the cooling passage; (e) a connecting passage connecting between the lubricating passage and the cooling passage, and (f) a lubricant distribution portion configured to change a connecting-passage flowing amount of the lubricant that flows through the connecting passage, depending on a temperature of the lubricant, such that a ratio of the connecting-passage flowing amount to a lubricating-passage flowing amount of the lubricant that flows through the lubricating passage is increased with increase of the lubricant temperature.

A solenoid valve device with a pressure-responsive slide mechanism, including: a body including at least three channels for flow of a liquid; a slide that can be moved in the body by a pressurised fluid, between a position with fluid communication between a first and a second channel among the three flow channels, and a position with fluid communication between the second channel and the third channel; a selector for selecting an activation threshold for movement of the slide, among at least one first and at least one second pressure threshold; and a regulator for regulating at least the activation thresholds of the slide.

The present disclosure relates to an engine system (1) for a vehicle (100), comprising, an internal combustion engine (10), a lubrication system (20) arranged to lubricate the internal combustion engine (10) and a first lubrication pump (21) arranged to supply lubricant to the lubrication system (20). The first lubrication pump (21) is configured to be powered by an auxiliary power source (40), wherein the lubrication system (20) is further arranged to supply lubricant to at least one auxiliary component (30, 31) of the engine system (1) which requires to be lubricated when in use, and wherein the lubrication system (20) comprises at least one valve (23, 25) for selectively shutting off lubricant supply to the at least one auxiliary component (30, 31). The present disclosure also relates to a vehicle (100), to a method for controlling lubricant supply to an auxiliary component (30, 31) and to a control unit (70).

A method (500) and apparatus (50, 60) for lubrication of a gearbox (30) of an aircraft engine comprise provision (502) of oil to the gearbox (30) through a primary oil system (50) driven by a core (11) of the engine (10) in normal conditions; detection (504) of windmilling conditions and/or failure of the primary oil system (50); and in response to the detected condition or failure, activation (506) of an electric pump (61) of an auxiliary oil system (60), to provide oil to the gearbox (30).