Throttle assembly for a flowing medium
AssigneeRobert Bosch GmbH
InventorSam Soubjaki
Life of this patent
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Abstract
In a throttle assembly for a flowing medium having an inlet and outlet and having two throttle devices disposed between them coaxially to one another, which each have at least one flow window for the passage of a flow of the medium flowing from the inlet to the outlet and are rotatable relative to one another for controlling the flow of the medium, in order to avoid friction and wear between the throttle devices and to assure a closing position without leakage flows, the throttle devices are embodied as hollow cones, with a cone jacket including at least one flow window, and the cones are disposed concentrically to one another in such a way that in the closing region of the throttle assembly, they are displaced axially toward one another by displacement means.
Claims21
In a throttle assembly for a flowing medium, having an inlet and outlet and two throttle devices disposed between them coaxially to one another, which have at least one flow window (17, 18) for the passage through it of a flow of the medium flowing from the inlet to the outlet and are rotatable relative to one another for controlling the flow of the medium, the improvement wherein each throttle device is embodied as a hollow cone (15, 16), with a cone jacket (151, 161) that contains the at least one flow window (17, 18);
- wherein the cones (15, 16) are disposed concentrically to one another with a gap spacing between their cone jackets (151, 161) and are displaceable axially relative to one another;
- and wherein displacement means engaging at least one cone (15) are provided, which are operative in a closing region, defined by the flow windows (17, 18) that do not overlap, of the throttle assembly and bring about an axial relative displacement of the cones (15) in a direction that reduces the gap spacing between the cone jackets (151, 161).
Dependencies are inferred from the claim text.