WO2023042069 - INCREASING WEAR RESISTANCE OF A WASTEGATE VALVE
National phase entry:
Publication Number
WO/2023/042069
Publication Date
23.03.2023
International Application No.
PCT/IB2022/058614
International Filing Date
13.09.2022
Title **
[English]
INCREASING WEAR RESISTANCE OF A WASTEGATE VALVE
[French]
AUGMENTATION DE LA RÉSISTANCE À L'USURE D'UNE SOUPAPE DE DÉCHARGE
Applicants **
MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
3000, Tana, Chuo-ku, Sagamihara
Kanagawa, 252-5293, JP
Inventors
HONIJK, Rick
MITSUBISHI TURBOCHARGER AND ENGINE EUROPE B.V.
Damsluisweg 2
1332 EC Almere, NL
Priority Data
PCT/IB2021/058390
15.09.2021
IB
Application details
| Total Number of Claims/PCT | * |
| Number of Independent Claims | * |
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| Number of Multi-Dependent Claims | * |
| Number of Drawings | * |
| Pages for Publication | * |
| Number of Pages with Drawings | * |
| Pages of Specification | * |
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International Searching Authority |
EPO
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| Applicant's Legal Status |
Legal Entity
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| Entry into National Phase under |
Chapter I
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| Translation |
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing | 1103 | |
| EPO | Filing, Examination | 4636 | |
| Japan | Filing | 595 | |
| South Korea | Filing | 574 | |
| USA | Filing, Examination | 2710 |
Total: 9618 USD
The term for entry into the National Phase has expired. This quotation is for informational purposes only
Abstract[English]
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.[French]
Dans le domaine technique des soupapes de décharge comprenant un ensemble fonctionnel d'un élément de corps (20) et d'un élément actionnable (30), des mesures sont proposées pour limiter l'usure axiale de l'élément de corps (20) et de l'élément actionnable (30) l'un sur l'autre en raison des vibrations et des pulsations du moteur. L'une des mesures implique une conception de la soupape de décharge dans laquelle au moins l'une des surfaces (24, 33) de l'élément de corps (20) et de l'élément actionnable (30) se faisant face dans une direction axiale (A) de la soupape de décharge comporte au moins une partie surélevée (26, 35) délimitée par au moins une partie renfoncée (27, 36) dans au moins une direction tangentielle (T) autour de la direction axiale (A). De cette manière, un ou plusieurs espaces pour recevoir de minuscules particules d'usure à partir de l'interface entre l'élément de corps (20) et l'élément actionnable (30) sont obtenus.