An apparatus for cooling a high heat-generating vehicle component includes an air compressor assembly operable in a heat-generating mode, in which the air compressor assembly has a relatively low capability to absorb heat energy from a coolant that has passed through a high heat-generating vehicle component. The coolant may be passed through a heat exchanger submerged in an oil reservoir of the air compressor assembly to facilitate the heat exchange. The air compressor assembly can also be operated in a non-heat-generating mode, in which the air compressor assembly has a relatively higher capability to absorb heat energy from the coolant that has passed through the high heat-generating vehicle component.

The present application relates to a battery storage device and an oiling method, and belongs to the technical field of battery overhauling and maintenance. The present application provides a battery storage device for storing a battery and charging the battery, and the battery has a connecting element for being connected to an electrical apparatus. The battery storage device includes: a battery placement rack; and an oiling mechanism arranged on the battery placement rack and used for oiling the connecting element. The present application further provides an oiling method. By using the battery storage device and the oiling method provided in the present application, the connecting element of the battery can be oiled and maintained, and the service life of the connecting element of the battery is prolonged.

The present invention relates to a device (100) for supplying fluid to an electric drive train for a motor vehicle, preferably for cooling and lubricating a transmission (50) and/or for supplying oil to an electric motor of the electric drive train. The device (100) comprises a main pump (10) configured as a hydraulic fixed displacement pump for delivering fluid from a fluid reservoir (40) to the electric drive train. The apparatus (100) further comprises at least one auxiliary pump (20) configured as a hydraulic fixed displacement pump. The main pump (10) and the auxiliary pump (20) are mechanically driven by the transmission (50) of the electric drive train in such a way that a fixed transmission ratio exists between a pumping rotation speed of the main pump (10) and a pumping rotation speed of the auxiliary pump (20), wherein the auxiliary pump (20) can be selectively connected by means of a controllable actuating device (30) for supplying fluid to the electric drive train.

The work equipment for the motor grader includes: a drawbar having a drawbar plate; a bearing having an outer ring and inner ring, the outer ring being fixed to a lower surface of the drawbar plate and the inner ring, disposed inside the outer ring ring; a circle having a circle plate that is fixed to a lower end of the inner ring over the peripheral direction; a blade supported by the circle; a peripheral-direction pipe extending in the peripheral direction of the outer ring along a peripheral surface of the outer ring and connected to an end portion of an outer peripheral side of the plurality of lubricant supply holes; and the lubricant inlet port connected to the peripheral-direction pipe and capable of introducing a lubricant oil from an outside.

A vehicle drive system includes a first prime mover, a transmission, a power take-off (PTO), a lubrication system for the transmission and the PTO, and a control system. The transmission is powered by the first prime mover. The transmission is configured to rotate a drive shaft of the vehicle. The PTO is connected to the transmission at a first interface. The PTO includes the first interface and a second interface. The control system is configured to control fluid flow through the lubrication system for at least one mode where the input section of the PTO is stationary and the output section rotates.

An oil temperature estimation apparatus that estimates an oil temperature of a driving system of a vehicle includes a vehicle speed sensor, a saturated oil temperature acquirer, an oil temperature deviation acquirer, an oil temperature feedback value acquirer, and an estimated oil temperature acquirer. The saturated oil temperature acquirer acquires a saturated oil temperature in a running state of the vehicle at least including a vehicle speed based on the running state. The oil temperature deviation acquirer acquires an oil temperature deviation between the saturated oil temperature and an estimated oil temperature previous value. The oil temperature feedback value acquirer acquires an oil temperature feedback value based on the oil temperature deviation and the vehicle speed. The estimated oil temperature acquirer acquires an estimated oil temperature current value based on the estimated oil temperature previous value and the oil temperature feedback value.

A lubricated rotational connection system provided with a free-wheel having a driving part and a driven part as well as at least one rotational link member arranged in a linking space, the linking space being located radially between a driving linking section and a driven linking section. A lubrication device comprises a fluid circulation device constrained to rotate with a driven pumping section of the driven part. The fluid circulation device is set in rotation with respect to a driving pumping section when the driving speed of rotation of the driving pumping section is lower than the driven speed of rotation of the driven pumping section about the axis of rotation in order to generate a forced circulation of the lubricating fluid within the linking space.

A computer for a manufacturer includes: a storage device storing amount-of-change determination values specified for respective amount-of-change indexes indicative of tendencies of temporal changes in pieces of sensor data A, B, and C, about a plurality of oil properties including a viscosity, a density, and a dielectric constant of oil; an abnormality determining section determining abnormality of the oil on the basis of the pieces of sensor data A, B, and C about the plurality of oil properties and abnormality determination values SAh, SAl, SBh, and SCh prescribed for the respective pieces of sensor data A, B, and C about the plurality of oil properties; a cause identifying section identifying, when the abnormality determining section determines the oil to be abnormal, the cause of the abnormality on the basis of the type of the oil property determined to be abnormal and the amount-of-change determination value of the oil property.

An apparatus for cooling a high heat-generating vehicle component includes an air compressor assembly operable in a heat-generating mode, in which the air compressor assembly has a relatively low capability to absorb heat energy from a coolant that has passed through a high heat-generating vehicle component. The coolant may be passed through a heat exchanger submerged in an oil reservoir of the air compressor assembly to facilitate the heat exchange. The air compressor assembly can also be operated in a non-heat-generating mode, in which the air compressor assembly has a relatively higher capability to absorb heat energy from the coolant that has passed through the high heat-generating vehicle component.

The invention relates to the field of rail transport. The present method for protecting wheelsets and a railroad bed from wear consists in applying, for the purpose of protecting coupling components under mutual friction from wear, an anti-wear coating that consists of ductile metals in the form of films on the frictional surface of said coupling components. A device for controlling the supply of a metal-plating ionisation solution emits a signal for activating or deactivating an electromagnetic valve mounted on a heated air duct connected to a reservoir that contains said metal-plating ionisation solution. The advantages of the present invention consist in more effectively protecting working surfaces from mechanical and hydrogen wear.