Patent ID: 6371062
Filing Date: 2002-04-16
Classification: F02B

Abstract:
A variable length connecting rod assembly for imparting a variable compression ratio to an internal combustion engine, the assembly comprising:a first part, a second part, and a third part assembled together to form the large end of the connecting rod assembly and provide a variable length for the connecting rod assembly; the first part comprising a semi-circular cap; one of the second and third parts being fastened tight to the first part; and guides disposed at opposite sides of the large end operatively relating the other of the second and third parts and the fastened parts to provide for relative sliding motion between the other of the second and third parts and the fastened parts over a limited adjustment range to change the length of the connecting rod assembly; fasteners disposed on opposite sides of the large end for fastening the one of the second and third parts tight to the first part; wherein the one of the second and third parts fastened tight to the first part by the fasteners comprises a semi-circular cap fastened to the semi-circular cap of the first part providing for the two fastened semi-circular caps to girdle a crank pin; and the guides comprise surfaces of the fasteners disposed in through-holes in the other of the second and third parts.