Throttle-butterfly connector piece for an internal combustion engine
AssigneeVDO Adolf Schindling AG
InventorGerald Muschalik
Life of this patent
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Abstract
In the throttle butterfly (2) of a throttle-butterfly connector piece of an internal combustion engine there is provided an expansion member (5) which has two arcuate pieces (6,7) which extend out of the circumferential surface of the throttle butterfly (2). The free ends of the arcuate pieces (6, 7) rest against a setting surface (8) which is provided on the housing (1) of the throttle-butterfly connector piece. The setting surface (8) is developed in such a manner that the arcuate piece (6, 7) is spread andt he surface of the throttle buterfly (2) is increased with small angles of opening as compared with what it is in its closed condition.
Claims6
In a throttle-butterfly valve for an internal combustion engine, the valve comprising
- a housing, a shaft rotatably supported by the housing, and a throttle butterfly which is held by the shaft for rotation in the housing;
- the improvement wherein
- the butterfly comprises an expansion element located in the region of the edge of the throttle butterfly, said expansion element, upon an opening of the throttle butterfly valve, moving out of the circumferential edge of the throttle butterfly as a function of angular position of the throttle butterfly.
Dependencies are inferred from the claim text.