A continuously variable transmission for a vehicle includes a drive clutch, a driven clutch operably coupled to the drive clutch, and a belt extending between the drive and driven clutches. The continuously variable transmission also includes an inner cover and an outer cover removably coupled to the inner cover. At least one of the inner and outer covers includes an air inlet for providing cooling air to the drive and driven clutches and the belt.

An automatic transmission where the control portion controls the adjustment solenoid valve so that the circulation hydraulic pressure equals to a second circulation hydraulic pressure higher than the first circulation hydraulic pressure when the rotational speed difference between the output rotational speed of the fluid transmission device and the rotational speed of the driving source is more than the predetermined rotational speed.

A torque converter device and to a method for controlling a liquid circuit of a torque converter device. The torque converter device includes a housing arrangement and a hydrodynamic device arranged in the housing arrangement. The hydrodynamic device include an impeller wheel connected on the input side to a driveshaft via the housing arrangement, a turbine wheel connected to an output shaft, and a stator wheel. The wheels collectively form a circuit filled with a liquid, that can be supplied with liquid by an external supply device. The torque converter device is constructed such that it actuates at least one flow control element for controlling the flow of liquid for the torque converter device in the circuit actively and/or passively depending on a difference in speed between the impeller wheel and the turbine wheel of the hydrodynamic device.

A fluid distribution apparatus for an axle assembly, the fluid distribution apparatus including a cylindrical portion rotatably disposed about a bearing race. A conical portion is coupled with the cylindrical portion, and a retaining portion is coupled with the conical portion. A plurality of circumferentially spaced tubes are coupled with the retaining portion, wherein the tubes are at least partially disposed through a rotating component of a clutch.

A fluid distribution apparatus for an axle assembly, the fluid distribution apparatus including a cylindrical portion rotatably disposed about a bearing race. A conical portion is coupled with the cylindrical portion, and a retaining portion is coupled with the conical portion. A plurality of circumferentially spaced tubes are coupled with the retaining portion, wherein the tubes are at least partially disposed through a rotating component of a clutch.

A hydraulic control system for an automatic transmission with a torque converter includes two regulator valves controlled by a single variable force solenoid (VFS). A bypass clutch regulator valve increases the pressure to a bypass clutch apply chamber as the VFS pressure increases. A converter charge regulator valve decreases the pressure in a converter charge circuit as the VFS pressure increases. The converter charge circuit is in series with a lubrication circuit. An orifice restricts the flow through these circuits such that they can be supplied from the line pressure circuit rather than a lower priority circuit. In one embodiment, an on/off solenoid opens a flow control valve to bypass the orifice when additional flow is required. In another embodiment, an electric pump supplements the flow in these circuits when required. This later embodiment includes a switch valve such that the electric pump also supports stop/start operation.

A hydraulic control system for an automatic transmission with a torque converter includes two regulator valves controlled by a single variable force solenoid (VFS). A bypass clutch regulator valve increases the pressure to a bypass clutch apply chamber as the VFS pressure increases. A converter charge regulator valve decreases the pressure in a converter charge circuit as the VFS pressure increases. The converter charge circuit is in series with a lubrication circuit. An orifice restricts the flow through these circuits such that they can be supplied from the line pressure circuit rather than a lower priority circuit. In one embodiment, an on/off solenoid opens a flow control valve to bypass the orifice when additional flow is required. In another embodiment, an electric pump supplements the flow in these circuits when required. This later embodiment includes a switch valve such that the electric pump also supports stop/start operation.

A hydraulic system of vehicle transmission device is provided. A heat exchanger configured downstream is used to cool working oil discharged from a torque converter, and the working oil is supplied, as lubricating oil, to a lubricating system hydraulic circuit. On the other hand, excess oil flowing out of a regulator valve for regulating line pressure returns to an input side of an oil pump through a recycle oil path. A bypass oil path is disposed in a manner of branching from the recycle oil path and connecting to an input side of the heat exchanger. A control mechanism is disposed, and when hydraulic pressure at the side of the recycle oil path is higher than that at the side of the heat exchanger, the bypass oil path is opened to guide oil at the side of the recycle oil path to the input side of the heat exchanger.

A hydraulic system of vehicle transmission device is provided. A heat exchanger configured downstream is used to cool working oil discharged from a torque converter, and the working oil is supplied, as lubricating oil, to a lubricating system hydraulic circuit. On the other hand, excess oil flowing out of a regulator valve for regulating line pressure returns to an input side of an oil pump through a recycle oil path. A bypass oil path is disposed in a manner of branching from the recycle oil path and connecting to an input side of the heat exchanger. A control mechanism is disposed, and when hydraulic pressure at the side of the recycle oil path is higher than that at the side of the heat exchanger, the bypass oil path is opened to guide oil at the side of the recycle oil path to the input side of the heat exchanger.

A hydrodynamic torque converter (1) with a converter torus formed by a pump wheel (3) and a turbine wheel (4) and a guide wheel (5). The guide wheel (5) is supported rotatably by a first axial bearing (51) and a second axial bearing (52). A sealing device (11), with a sealing gap, is provided in the area of the first axial bearing (51), which impedes a through-flow of the working fluid of the torque converter (1) through the first axial bearing (51).