초록

A control actuator for a turbocharger comprises a diaphragm-displaced actuator rod projecting outwardly from an actuator housing through a spring-biased retainer which sealably permits axial and angular rod movement for variably positioning a turbocharger wastegate valve.

대표청구항 ▼

A turbocharger control actuator comprising a housing; a pressure responsive diaphragm dividing said housing into a pair of chambers; an actuator rod having one end coupled to said diaphragm for movement therewith and extending therefrom out of said housing through an opening formed in said housing;

A turbocharger control actuator comprising a housing; a pressure responsive diaphragm dividing said housing into a pair of chambers; an actuator rod having one end coupled to said diaphragm for movement therewith and extending therefrom out of said housing through an opening formed in said housing; sealing means pivotally received through said opening and including an annular retainer with a sealing seat in pivotally sealing bearing engagement with said housing adjacent said opening for accommodating angular movement of said rod, and a cylindrical portion concentrically received about said rod, and including bushing means concentrically secured within said cylindrical portion and slidably received about said rod for allowing sliding sealed axial movement of said rod; and spring means compressively retained between said diaphragm and said sealing means for predeterminably biasing said diaphragm and for urging said sealing means into pivotally sealing relation with said housing.