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1. 发明申请

US20110162359A1 DEVICE FOR SEALING A BEARING HOUSING OF AN EXHAUST-GAS TURBOCHARGER 审中-公开
标题翻译：用于密封气体涡轮增压器的轴承壳体的装置
公开(公告)号：US20110162359A1
公开(公告)日：2011-07-07
申请号：US13049370
申请日：2011-03-16
申请人： Dominique BOCHUD , Tobias Gwehenberger , Joel Schlienger , Christoph Häge
发明人： Dominique BOCHUD , Tobias Gwehenberger , Joel Schlienger , Christoph Häge
IPC分类号： F16J15/44 , F02C6/12
CPC分类号： F02C6/12 , F01D11/003 , F02C7/28 , F05D2220/40 , F05D2240/55 , F16J15/441
摘要： The device serves for sealing a bearing housing of an exhaust-gas turbocharger, from which a rotor is led into a chamber of the turbocharger subjected to a mass flow. The device includes a sealing ring arranged in a groove of the rotor, a seat, arranged on the bearing housing and on which a pre-stressed sealing ring is secured by an outward-facing circumferential surface, and a radially extending separation gap, which leads annularly around the axis of rotation of the rotor and is defined by two superimposed sliding surfaces, the first of which is arranged on a first face of the sealing ring and the second of which is arranged on a first flank of the groove. In order to reduce a heat input into the sealing ring caused by lapping of the sealing ring during operation of the exhaust-gas turbocharger, a depression annularly around the axis is formed into the second flank of the groove. The depression is defined radially outwards by an annular body formed into the rotor. The annular body forms a portion of an external face of the rotor. The annular body includes a radially oriented annular edge, which adjoins the external face and which serves to reduce the size of a lapping face, which is produced as the sealing ring strikes against the second groove flank.
摘要翻译：该装置用于密封排气涡轮增压器的轴承箱，转子被引导到涡轮增压器经受质量流动的室中。所述装置包括设置在所述转子的凹槽中的密封环，所述密封环布置在所述轴承壳体上，并且预紧应力的密封环通过面向外的周向表面固定在所述凹槽上，并且径向延伸的分离间隙围绕转子的旋转轴线环形地限定，并且由两个重叠的滑动表面限定，其中第一滑动表面布置在密封环的第一面上，其中第二表面布置在凹槽的第一侧面上。为了减少在排气涡轮增压器运行期间由于密封圈的研磨引起的对密封环的热量输入，围绕轴线的环形凹陷形成凹槽的第二侧面。凹陷由形成在转子中的环形体径向向外限定。环形体形成转子外表面的一部分。环形体包括径向定向的环形边缘，其邻接外表面并且用于减小当密封环撞击第二槽侧面时产生的研磨面的尺寸。

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