公开(公告)号：US09683520B2

公开(公告)日：2017-06-20

申请号：US14641665

申请日：2015-03-09

Applicant: Caterpillar Inc.

Inventor： Richard E. Annati ,  Gary W. Powers ,  Jeffrey W. McCormack ,  Gregg Williams ,  Thomas J. Williams

IPC: F02B33/44 ,  F04B17/00 ,  F04B35/00 ,  F16C27/00 ,  F16C19/00 ,  F16C43/04 ,  F01D25/18 ,  F02M25/07 ,  F02B37/00 ,  F02B39/14 ,  F04D25/02 ,  F04D29/059 ,  F01D25/16 ,  F01D25/24 ,  F02M26/05

CPC classification number: F02M26/04 ,  F01D25/16 ,  F01D25/183 ,  F01D25/24 ,  F02B37/00 ,  F02B39/14 ,  F02M26/05 ,  F04D25/024 ,  F04D29/059 ,  F05D2220/40 ,  F16C19/184 ,  F16C27/045 ,  F16C33/767 ,  F16C35/063 ,  F16C2360/24 ,  Y02T10/144

Abstract: A turbocharger includes a turbine, a compressor, and a bearing housing forming a bearing bore. A bearing arrangement is disposed between a shaft interconnecting the turbine and compressor wheels, and the bearing housing. The bearing arrangement includes first and second bearings formed between an outer bearing race element disposed within the bearing bore an inner bearing race element disposed within the outer bearing race element and between the outer bearing race element and the shaft. The inner bearing race element rotates with the shaft and forms an extension segment having an open channel that, together with an annular surface on an inner side of a back of the compressor wheel, forms a U-shaped channel into which a ring seal is disposed. The ring seal sealably engages the inner bearing race element and also slidably and sealably engages the inner bore of the bearing retainer.

公开(公告)号：US20160281645A1

公开(公告)日：2016-09-29

申请号：US14641665

申请日：2015-03-09

Applicant: Caterpillar Inc.

Inventor： Richard E. Annati ,  Gary W. Powers ,  Jeffrey W. McCormack ,  Gregg Williams ,  Thomas J. Williams

IPC: F02B33/44 ,  F01D25/16 ,  F04D29/056

CPC classification number: F02M26/04 ,  F01D25/16 ,  F01D25/183 ,  F01D25/24 ,  F02B37/00 ,  F02B39/14 ,  F02M26/05 ,  F04D25/024 ,  F04D29/059 ,  F05D2220/40 ,  F16C19/184 ,  F16C27/045 ,  F16C33/767 ,  F16C35/063 ,  F16C2360/24 ,  Y02T10/144

Abstract: A turbocharger includes a turbine, a compressor, and a bearing housing forming a bearing bore. A bearing arrangement is disposed between a shaft interconnecting the turbine and compressor wheels, and the bearing housing. The bearing arrangement includes first and second bearings formed between an outer bearing race element disposed within the bearing bore an inner bearing race element disposed within the outer bearing race element and between the outer bearing race element and the shaft. The inner bearing race element rotates with the shaft and forms an extension segment having an open channel that, together with an annular surface on an inner side of a back of the compressor wheel, forms a U-shaped channel into which a ring seal is disposed. The ring seal sealably engages the inner bearing race element and also slidably and sealably engages the inner bore of the bearing retainer.

Abstract translation: 涡轮增压器包括涡轮机，压缩机和形成轴承孔的轴承壳体。 轴承装置设置在连接涡轮和压缩机叶轮之间的轴与轴承壳体之间。 轴承装置包括形成在设置在轴承孔内的外轴承座圈元件之间的第一和第二轴承，设置在外轴承座圈内的内轴承座圈元件和外轴承座圈元件与轴之间。 内部轴承座圈与轴一起旋转并形成具有开放通道的延伸段，该通道与压缩机叶轮后部的内侧上的环形表面一起形成U形通道，环形密封件设置在该U形通道中 。 环形密封件可密封地接合内部轴承座圈元件，并且还可滑动地且可密封地接合轴承保持器的内孔。