TH46212B - Set of power units for vehicles - Google Patents

Abstract

DC60 for the purpose of preventing the Generator 92 from sticking outward. In the vehicle power unit, which is equipped with cam chain 81, located on the side. one side of the engine cylinder To transmit the power of the crankshaft 36 to the crankshaft 79, the Generator 92 is driven by the crankshaft 36 and is arranged on the outside. of the cam chain relative to the axial direction of the crankshaft 36 this type of transmission is variable. Continuously 38 belt driven with a driven pulley shaft 39 which is driven by a crankshaft 36 and a driven pulley shaft 40 which is driven by a driven pulley 39 held parallel to the crankshaft. swing this This 38-belt continuously variable transmission is held on one end of the crankshaft 36 and the Generator 92 is held on the other end of the shaft. This 36 crank is a power unit for this vehicle. It is supplied with an inner transmission housing 86 attached to the crankcase 25 and covers this continuously variable transmission 38 from the inside of this transmission. The outer 87 transmission housing covers this 38 continuously variable transmission from the outside of this transmission. and the lubricant pump 71, which is positioned on the side opposite the cam chain 81 relative to the cylinder axis and on the wall of the crankcase 25 facing the inner transmission housing 86.

Claims (4)

OCR 14SR 1. The vehicle's power unit comprises: the crankshaft and camshaft of the valve operating mechanism, which are oriented along the width of the vehicle body; the camshaft chain, which is positioned on one side of the cylinder to transmit power from the crankshaft to the camshaft; the generator, which is positioned on the outside of the camshaft chain relative to the width of the vehicle body to be rotated by this crankshaft; and a continuously variable transmission (CVT) belt drive system, which consists of a driven pulley driven by and positioned parallel to the crankshaft, and a disengaged pulley, which is also positioned parallel to this crankshaft. This CVT belt drive system is positioned on one end of the crankshaft, and the generator is positioned on the other end of the crankshaft. Furthermore, this power unit is integrated into an inner transmission housing attached to the crankshaft of the internal combustion engine and encloses the CVT belt drive system from the inside of the transmission unit relative to the width of the vehicle body. The outer transmission housing encloses the continuously variable transmission (CVT) belt-type transmission. From the outside of this CVT belt-type transmission relative to the width of the vehicle body, it forms the transmission housing which encloses the CVT belt-type transmission together with the inner transmission housing. The oil pump is positioned on the side opposite the camshaft chain relative to the width of the vehicle body and on the side of the crankcase facing the inner transmission housing. 2. The power unit for the vehicle under claim 1, in which this lubricating oil pump has a means of transmitting the drive of the lubricating oil pump consisting of a sprocket whose teeth mesh with the cam chain and the drive shaft of the lubricating oil pump which is coaxially connected to the sprocket and passes through this crankcase. 3. The power unit for the vehicle pursuant to claim paragraph 2, in which this crankcase is divided into segmented crankcases with matching surfaces perpendicular to the axis of the crankshaft, a sprocket meshing its teeth with the cam chain on one end of the lubrication pump drive shaft, and a bearing for the lubrication pump drive shaft is provided on one segmented crankcase and another segmented crankcase. 4. A power unit for a vehicle under either claim 2 or 3 where the drive shaft of this lubricating oil pump is routed into the space formed between the crankcase and the inner transmission housing attached to this crankcase, and the lubricating oil pump is securely fastened to the wall of the crankcase within this space.