| 摘要 |
THE INVENTION RELATES TO A THROTTLE BODY (1) WHICH HAS A THROTTLE HOUSING (2) MADE OF PLASTIC,A THROTTLE BUTTERFLY (5) BEING PIVOTABLY MOUNTED IN A CONDUIT SECTION (3) OF THE THROTTLE HOUSING (2),WHEREIN,ACCORDING TO THE INVENTION, A METAL CYLINDER (12) IS PROVIDED IN THE CONDUIT SECTION (3) OVER AT LEAST PART OF THE PIVOTING RANGE OF THE THROTTLE BUTTERFLY (5).FIGURE 7
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