Patent ID: 6139436
Filing Date: 2000-10-31
Classification: F01C,F02M

Abstract:
A coupling for a fuel injection pump comprising a drive shaft (1), an eccentric disk (3) which drives an axially reciprocating and simultaneously rotating pump-and-distributor member, an Oldham coupling (2) that connects the drive shaft to the pump-and-distributor member via the eccentric disk (3), said Oldham coupling has a first pair of claws (7) on the drive shaft (1) on a drive side of the pump and a second pair of claws (8) on the eccentric disk (3) on the driven side of the pump opposite to said first pair of claws, a cross disk (4) formed by radial arms is disposed between said first and second pairs of claws for guiding the opposed pairs of claws (7, 8) in positively adapted claw receptacles, the cross disk (4) comprises four radially oriented arms (5), abutting one another centrally at right angles, with said claw receptacles located between the arms for the first and second pairs of claws (7, 8), said first and second pairs of the claws (7, 8) are supported by roller bearings within cages of the cross disk (4), and the roller bearings (6) are supported in the arms (5), rotatable about a radial axis thereof with a portion of the roller bearings protruding past side surfaces of the cross disk (4).