TH49455B - Air conduction structure in power transmission unit - Google Patents

Abstract

DC60 (01/04/53) to provide an air conduction structure in the powertrain that allows outside air to flow reliably. Smoothly through the transmission housing The air inlet (115) is located above the drive pulley (63) in the transmission housing (61A). The air inlet (116) is located above the drive pulley (63). In the transmission housing (61A), a guide assembly (122) for air flow adjustment is provided between the air inlet (115) and the air outlet (116) of the transmission housing. Power (61A) to provide an air conduction structure in the transmission that allows outside air to flow Smoothly through the transmission housing The air inlet (115) is located above the drive pulley (63) in the transmission housing (61A). The air inlet (116) is located above the drive pulley (63). In the transmission housing (61A), a guide assembly (122) for air flow adjustment is provided between the air inlet (115) and the air outlet (116) of the transmission housing. Power (61A)

Claims (9)

Disclaimer (all) which will not appear on the advertisement page: edit 27/05/58 1. Air conduction structure in transmission unit The transmission is a belt transmission unit (60) that includes a drive pulley (63) provided at one end of the crankshaft (51) that is supported in the The internal combustion engine (20), the following pulley (67) is provided at one end of the shaft under (64) that are supported in the internal combustion engine (20) and the belt (68) that runs between the pulleys. Drive lay (63) and follow pulley (67) whose air conduction structure is composed of a blower fan which rotates like In the same piece as the drive pulley (63) and the transmission housing (61A) provided, the air inlet (115) and the air outlet (116) receive the outside air from the air inlet ( 115) By using a fan to blow air. And that is broadcast from the air intake channel (116), where the air inlet (115) is provided over the drive pulley (63) in the transmission housing (61A) the broadcast channel (116 ) Is provided above the pulley according to (67) in the transmission housing (61A). Lead assembly (122) for air flow adjustment is provided between The air inlet (115) and the air inlet (116) of the transmission housing (61A), the blower fan, which is rotated in the same way as the drive pulley (63), are provided. (122) extends over the straight line (LA) connecting the axial center (C1) of the drive pulley shaft (51R) and the axial center (C2) of the pulley shaft (64). From the top plate of the power unit housing (61A) that supports the drive pulley (63) and the follow pulley (67) inside to the adjacent contour (LA) transmission housing (61A). ) Is provided with a cover assembly (61B) on one side. Of the transmission housing The cover assembly (61B) is provided with the guide assembly (123), in contrast to the lead assembly (122) of the transmission housing (61A), the lead assembly (122), and Assembly piece, lead side, cover piece (123), protruding from the top. Of the transmission housing (61A) and the cover assembly (61B), respectively, the space for the belt (68) to pass through, provided between the guide assembly (122) and the guide assembly (122). (123, the upper part of the guide assembly (122) and the cover side guide assembly (123) are both connected to the overhang above the belt (68) and in the cross-section direction to the belt (68) and The guide assembly (122) and the guide assembly (123) are directed downwards. 2.The air conduction structure in the powertrain according to claim 1, where the internal combustion engine (20) is provided, has a crankcase (24), where the crankshaft (51) is supported by The crank housing and the transmission (60) are located on the right side of the crankcase (24) and the drive pulley (63) rotates clockwise when viewed from the right. 3.The air conduction structure in the powertrain according to claim 1 or 2, where the lead assembly (122) and the guiding side assembly (123) is positioned between the crankshaft (51) and the shaft. Follow (64), located above the (LB) line, touching the lower part of the drive pulley (63) and the follow pull pulley (67) when viewed from one side. 4.Air conduction structure in one of Claims 1 to 3, where the lead assembly (122) and the guide assembly (123) are directed downwards to the side. end 5. The air conduction structure in the power transmission unit according to claim 1, where the air inlet (115) and the air outlet (116) are extended parallel. 6. The air conduction structure in the transmission according to claim 5, where the air inlet (115) and the air outlet (116) protrude to the rear relative to the vehicle body. 7. The air conduction structure in the power transmission unit according to claim 5 or 6, where the air intake range (115) and the air intake (116) each have an oval cross-section. And the core of An oval cross-section of at least one air intake (115) and one air intake (116). The hole will be oblique. 8. The air conduction structure in the transmission unit according to claim 5, where the pilot assembly (122) is characterized at the apex of the pilot assembly (122), blocks the air outlet (116) in the direction that Crossed with the direction of the airflow flowing through the air inlet (115) and the air discharge port (116) ------------------------ -------------------------------------------- 1. Air conduction structure in transmission unit In which the transmission is a set of transmission belts that It consists of a drive pulley provided at one end of the crankshaft supported in the internal combustion engine, the pulley, as provided at one end of the shaft, as supported in the combustion engine. Burns internally and the belt that runs between the drive pulley and the pulley according to Which air conduction structure It consists of a blower fan which rotates in one piece with the drive pulley and the transmission housing. Provided with air inlet and broadcasting channels Will take in outside air from the inlet Air by using a fan to blow air And it will be broadcast from a broadcast channel where the air inlet is located above the drive pulley in the transmission housing. The discharge port is located above the track pulley in the transmission housing and the guide assembly for air flow adjustment is provided between the air inlet. And the broadcasting channel of the power transmission housing 2. The air conduction structure in the powertrain, according to claim 1, where the internal combustion engine is provided, has a crankcase where the crankshaft is It is supported by that crank housing and the transmission is located on the right side of the crankcase. And the drive pulley will rotate clockwise Watch when viewed from the side 3. Air conduction structure in the transmission unit according to claim 1, where the transmission housing has been arranged. To have a piece to cover the top side of the body of the transmission unit By a piece of cover It is provided that there is a protective assembly assembly that is in contrast to the lead assembly of the transmission housing. 4. Air conduction structure in the transmission according to claim 3, where the lead assembly and Assemble the lower cover from the top of the transmission housing and the cover assembly, respectively. 5. The air conduction structure in the transmission according to claim 4, where space for the belt to be extended. A pass has been provided between the lead assembly and the leading cover assembly. 6. The air conduction structure in the powertrain, according to claim 4 and 5, where the lead assembly and the guiding assembly side are positioned between the crankshaft and The shaft follows, so that it is above the tangent with the lower part of the drive pulley and the follow pull pulley when viewed from the side. 7. Air conduction structure in the transmission according to claim 4, where the lead assembly and Assembling the lead side of the cover has been pointed downwards towards the end. 8. The air conduction structure in the power transmission unit according to claim 1, where the air inlet and Release broadcasts held in parallel 9. The air conduction structure in the power transmission unit according to claim 8, where air inlet and outlet Release the broadcast obliquely to the rear relative to the vehicle body 1 0. The conduction structure in the transmission unit according to Clause 8 and 9, where each air inlet and discharge channel has an oval cross-section. And the main axis of the cross section The oval of the air inlet and the air outlet at least one cross section is oblique.