ELEPHANT-FOOT TYPE SETSCREW KNOCKDOWN FOR INTERNAL COMBUSTION ENGINE

摘要

PURPOSE: To improve resistance against sliding friction and resistance against sliding wear of an elephant's foot or swivel pad adjusting screw assembly which makes contact with an actuating member interface in an internal combustion engine. CONSTITUTION: An assembly 10 includes a metal screw element 12, configured to move along an arcuate path in a correspondingly configured socket 20 in a ceramic pad element 14. A retainer element 16 loosely links the pad element 14 to the screw element 12 and makes relative motion due to the linking. This ceramic pad element 14 includes a planar contact face for contacting a corresponding planar contact surface on an internal combustion engine actuating member, such as a valve, a valve crosshead or a unit fuel injector.