| 摘要 |
#CMT# #/CMT# The device has two shafts (3) with respective cams (2) actuating two inlet valves (1), and two shafts (7) with respective cams (6) actuating two outlet valves (5). The shafts (3, 7) are connected by respective homo-kinematic connections (10, 12) and inter-connected by a homo-kinematic connection (14). The connections (10, 12) comprise tapered pinions (11, 13) that mesh with two adjacent ends of the shafts, respectively. A tapered roller bearing applies an axial force to the ends of the shafts for maintaining the pinions (11, 13, 15, 16) in meshing. #CMT#USE : #/CMT# Used in automobile field for distributing an internal combustion engine (claimed) and for permitting a better combustion so as to provide a gain of performance of the engine and to reduce the fuel consumption of the engine. #CMT#ADVANTAGE : #/CMT# The architecture of the device permits to machine external peripheral surfaces of the cams of the shafts in a simple and easy manner, thus permitting to maintain thrust on existing cam followers, while avoiding relative radial friction between the cams and the corresponding cam followers. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a perspective view of an internal combustion engine valve gear drive device. 1 : Inlet valves 2, 6 : Cams 3, 7 : Shafts 5 : Outlet valves 10, 12, 14 : Homo-kinematic connections 11, 13, 15, 16 : Tapered pinions. |
