PUSHROD FOR INTERNAL COMBUSTION ENGINES AND A METHOD OF MAKING SUCH A PUSHROD

摘要

1505938 Making pushrods APLICACIONES DE METALES SINTERIZADOS SA 12 July 1976 [29 Aug 1975] 28925/76 Heading B3A A valve pushrod 1 for internal combustion engines is produced by pressing metal powder, preferably steel or iron alloy, to the required shape and sintering it, and affixing a treated abrasion resistant steel member 23 to the lower face of the pushrod heel portion for frictional engagement with the corresponding engine valve control drive cam 2. The pushrod body 21 may be hollow or solid. Steel member 23 is affixed by welding, by screws, by interlocking mechanical joints or by adhesive bonding. The diameter of steel member 23 may be the same as or less than that of the pushrod heel portion.