Patent ID: 6244565
Filing Date: 2001-06-12
Classification: F02D

Abstract:
An electronic throttle control system comprising:a housing containing a motor section, a throttle section and a gear section;a motor positioned in said motor section;an air passageway in said throttle section;a throttle body shaft and throttle valve plate positioned in said throttle section, said throttle body shaft rotatably positioned in said housing and extending through said air passageway, and said throttle valve plate attached to said throttle body shaft and positioned in said air passageway;a pair of bearing members positioned in said housing and supporting said throttle body shaft during rotation, said bearing members each comprising a pair of race members;a gear train mechanism positioned in said gear section and operably connecting said motor to said throttle body shaft;a cover member positioned on said housing and covering at least part of said motor and gear train mechanism;electronic means in said cover for operating said motor and said throttle body shaft through said gear train; anda clip member attached to said throttle body shaft;said clip member preloading at least one of said bearing members in order to prevent axial movement of said associated race members and prevent axial movement of said throttle shaft.