Throttle valve positioning device
AssigneeSiemens Aktiengesellschaft
InventorsThomas Hannewald, Stefan Koehler
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Abstract
The invention relates to a throttle valve positioning device, comprising a housing (12) with a bearing for a throttle valve shaft (20) and a throttle valve support (26), within which a throttle valve (24) pivots which sits on the throttle valve shaft (20), running into a shaft passage (44) in the support (26). According to the invention, air leakage may be avoided, whereby the periphery (34) of the throttle valve (24) is arranged at a separation from a passage (44) for the throttle valve shaft (20) in the throttle valve support (26).
Claims32
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A throttle valve positioning device including a housing having a split design and forming a bearing arrangement for a throttle valve shaft, the device comprising:
- a throttle body;
- a throttle valve pivotally arranged within the throttle body;
- a throttle valve shaft arranged within the body such that the throttle valve sits thereon, the throttle valve shaft arranged to lead through a shaft passage into the throttle body and wherein the circumference of the throttle valve, at least on one side, lies next to the throttle valve shaft at a distance from a passage of the throttle valve shaft in the throttle body;
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- wherein the housing, between its halves, further comprises an actuator and possibly gearing for positioning the throttle valve via the valve shaft.
The throttle valve positioning device according to claim 29, wherein the throttle valve comprises filled PEI or filled PPS.
Dependencies are inferred from the claim text.