There is provided a lubricating structure for a power transmission mechanism in which a crankshaft is coupled to a piston disposed in a cylinder bore and in which power is transmitted from the crankshaft to a camshaft. The lubricating structure includes: an idler gear that is configured to transmit power from the crankshaft to the camshaft; and an idler gear shaft that supports the idler gear via a bearing. One end portion of the idler gear shaft protrudes into the cylinder bore, and an oil passage configured to guide oil from the cylinder bore to the bearing is formed in the idler gear shaft.

A coordinate measuring machine (CMM) having a belt drive unit for an elongated axis element of the CMM, the belt drive unit comprising a belt, the ends of which are clamped on the elongated axis element, a pulley unit, comprising a drive pulley and two idler pulleys, wherein the belt entangles the drive pulley and the idle pulleys in an omega-shaped manner, and wherein the pulley unit is configured to cause a relative linear movement between the axis element and the pulley unit, wherein a damping layer is disposed adjacent to the belt.

There is provided a V-belt type continuously variable transmission of an air-cooled type mounted on a vehicle. The V-belt type continuously variable transmission includes an intake port for taking air into the V-belt type continuously variable transmission, and an exhaust port for exhausting the taken air from the V-belt type continuously variable transmission. The V-belt type continuously variable transmission further includes at least one of an electric intake fan connected to the intake port directly or via an intake duct, and an electric exhaust fan connected to the exhaust port directly or via an exhaust duct.

An exhaust device incorporated in a vehicle for travel on uneven terrains. The exhaust device includes an air blowing device and an exhaust pipe through which exhaust gas generated in a prime mover is directed out of the vehicle. The exhaust pipe includes an upstream pipe, a downstream pipe, and a joint device joining the upstream pipe to the downstream pipe in a manner permitting the upstream pipe to move relative to the downstream pipe, the air blowing device being disposed to blow cooling air toward the joint device.

A continuously variable transmission is obtained by winding, around a drive sheave and a driven sheave, a continuously variable transmission belt in which a plurality of metal elements are stacked and supported on an endless ring. In at least one of the metal elements, flange parts are formed on a head part positioned at an outer peripheral side of the endless ring and a trunk part positioned at an inner peripheral side of the endless ring. The continuously variable transmission is provided with a fluid supply device which, during movement of the continuously variable transmission belt from the driven sheave to the drive sheave, sprayed lubricating oil in a movement direction of the continuously variable transmission belt, towards the flange parts.

A hydraulic pressure supply apparatus for automatic transmission having a first and a second regulator valves 50, 52 that are installed in a first and a second oil passages 46, 48 that connect a hydraulic pump 44 for pumping and discharging hydraulic oil from a reservoir 42 and a plurality of hydraulic actuators and depressurize the hydraulic oil discharged from the pump to pressure required by the hydraulic actuators, a third and a fourth oil passages 56, 58 that convey discharged hydraulic oil to lubrication system 54 and an ejector 60 having a nozzle 60a connected to one of the third and fourth oil passages and an intake 60b connected to the reservoir 42 such that hydraulic oil merged at a diffuser 60c is conveyed to the lubrication system 54 through a fifth oil passage 62, hydraulic energy generated by the hydraulic pump can be effectively utilized in an automatic transmission having the hydraulic actuators and lubrication system.

Methods, systems, and vehicles that control the temperature of a device included in the vehicle are presented herein. The temperature of the device is controlled by ventilating the device with drivetrain air, such as transmission cooling air. In some embodiments, the device is at a greater temperature than the drivetrain air, which cools the device. In other embodiments, the device is at a lesser temperature than the drivetrain air, which heats the device. The drivetrain air is provided to the device through an exhaust duct coupled to the vehicle's transmission. The drivetrain exhaust air is preferably circulated by the transmission. The transmission may be a continuously variable transmission. The device may be an oxygen sensor that is coupled to an engine exhaust pipe. The oxygen sensor is thermally coupled to the engine exhaust and the engine exhaust pipe, which are at greater temperatures than the transmission exhaust air.

A continuously variable transmission housing is provided that includes an inner cover and an outer cover connectable to the inner cover to define an interior chamber. The interior chamber is structured and operable to enclose a continuously variable transmission primary pulley, secondary pulley and pulley belt. The housing includes a duct panel mounted to the inner cover such that when the primary pulley is disposed within the interior chamber, the duct panel is disposed between an outer face of the primary pulley and the inner cover. Moreover, an air duct is defined between the inner cover and the duct panel, wherein the air duct is fluidly connected to ambient air from an ambient environment external to the housing. The duct panel includes a center opening that structured and operable to allow the ambient air to be drawn through the air duct and into the housing interior chamber.

A continuously variable transmission includes: a primary pulley; a secondary pulley; a power transmission member; a case; and a shield member. The shield member is disposed between an inner surface of the case and a first pulley that is one of the primary pulley and the secondary pulley, at a position on an opposite side of the first pulley from a second pulley that is another one of the primary pulley and the secondary pulley. The shield member includes a plate part that is configured to cover a part of an outer circumference of the first pulley, where the power transmission member is wound, such that the plate part intersects with a minimum width extension line and a maximum width extension line.

A vehicle has an engine; a drive pulley connected to and driven by a crankshaft of the engine; a driven pulley; an output shaft connected to and driven by the driven pulley; a belt looped around the pulleys; and a cover connected to the engine. The cover and the engine define a volume therebetween. A baffle disposed in the volume separates the volume in first and second chambers. The first chamber is disposed between the baffle and the engine. The second chamber is disposed between the baffle and the cover. The pulleys are disposed in the second chamber. The baffle defines first and second apertures fluidly communicating the first chamber with the second chamber. An air inlet is fluidly connected to the first chamber. An air outlet is fluidly connected to the second chamber.