INCREASING WEAR RESISTANCE OF A WASTEGATE VALVE
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United States of America Patent
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Issued Date -
Oct 24, 2024
app pub date -
Sep 13, 2022
filing date -
Sep 13, 2022
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Abstract
In the technical field of wastegate valves comprising a functional assembly of a body member (20) and an actuable member (30), measures are proposed to limit axial wear of the body member (20) and the actuable member (30) on each other as a result of engine vibration and pulsation. One of the measures involves a design of the wastegate valve in which at least one of surfaces (24, 33) of the body member (20) and the actuable member (30) facing each other in an axial direction (A) of the wastegate valve is provided with at least one elevated portion (26, 35) delimited by at least one recessed portion (27, 36) in at least a tangential direction (T) about the axial direction (A). In this way, one or more spaces for receiving tiny wear particles from the interface between the body member (20) and the actuable member (30) are obtained.
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