Throttle body with a housing and a throttle valve shaft secured in a housing by means of an axial lock, and method for producing an axial lock for a throttle valve shaft in a housing of a throttle body

摘要

A throttle valve assembly 10 with a housing 12, in which a continuous throttle opening 34 is formed, which can be closed by a throttle valve 36 arranged on a throttle valve shaft 16, the throttle valve shaft 16 projecting with its lateral ends 18, 20 into bearing recesses 22, 24 of the housing 12 and is rotatably mounted, with one end 20 of the throttle valve shaft 16 protruding on the side 40 of the bearing recess 24 facing away from the throttle valve 36 and projecting through a bore 42 in a holding element 44 which is arranged axially immovably on the throttle valve shaft 16 and axially in that which faces away from the throttle valve 36 Mouth area 74 of the bearing recess 24 is supported on the housing, should have a particularly high mechanical stability of an axial lock 14. For this purpose, the holding element is firmly connected to the housing 12 at its radially outer region 92, 94 and axially in the region of its bore 42 on each side 52, 54 against an approximately annular disk-shaped securing element 46, 48, the securing elements 46, 48 being firmly attached are arranged on the throttle valve shaft 16 and the throttle valve shaft 16 rotates freely through the bore 42 of the holding element 44.