公开(公告)号：US08622691B2

公开(公告)日：2014-01-07

申请号：US12864837

申请日：2008-01-28

申请人： Masatoshi Eguchi ,  Kazuhiro Onitsuka ,  Masahiro Shimizu

发明人： Masatoshi Eguchi ,  Kazuhiro Onitsuka ,  Masahiro Shimizu

IPC分类号： F02B39/14

CPC分类号： F02B39/14 ,  F01D25/168 ,  F01D25/18 ,  F02B37/10 ,  F02B39/10 ,  F05D2220/40 ,  F16C17/04 ,  F16C33/1045 ,  F16C2360/24 ,  Y02T10/144

摘要： The invention provides a supercharger which is provided with a thrust bearing in an outer side of a radial bearing, and can smoothly discharge a fed lubricating oil from a bearing portion so as to reduce a resistance generated by the lubricating oil.The supercharger is provided with a thrust bearing (30) rotatably supporting a thrust force applied to a turbine shaft (12). The thrust bearing (30) is constituted by a disc-shaped thrust collar (32) rotating together with the turbine shaft, and a turbine side thrust bearing (34) and a compressor side thrust bearing (36) inhibiting a movement in an axial direction of the thrust collar. The compressor side thrust bearing (36) has an oil feed flow path (36a) feeding a lubricating oil to a surface coming into contact with a thrust collar from an inner side of a housing, an annular concave groove (36b) provided in an inner surface of a hollow through hole through which the turbine shaft passes, and an oil discharge flow path (36c) dropping down the lubricating oil reserved within the concave groove downward.

摘要翻译： 本发明提供了一种在径向轴承的外侧设置有止推轴承的增压器，并且能够从轴承部分平滑地排出供给的润滑油，从而降低由润滑油产生的阻力。 增压器设置有可旋转地支撑施加到涡轮轴（12）的推力的推力轴承（30）。 止推轴承（30）由与涡轮机轴一起旋转的圆盘状止推环（32）和涡轮侧推力轴承（34）和压缩机侧推力轴承（36）构成，从而阻止轴向移动 的推力领。 压缩机侧止推轴承（36）具有供油流路（36a），该供油流路（36a）将润滑油供给到与外壳的内侧与止推环接触的面，设置在内侧的环状凹槽（36b） 涡轮机轴通过的中空通孔的表面和向下凹入凹槽内保留的润滑油的排油流路（36c）。

公开(公告)号：US20100310366A1

公开(公告)日：2010-12-09

申请号：US12864837

申请日：2008-01-28

申请人： Masatoshi Eguchi ,  Kazuhiro Onitsuka ,  Masahiro Shimizu

发明人： Masatoshi Eguchi ,  Kazuhiro Onitsuka ,  Masahiro Shimizu

IPC分类号： F04D29/04

CPC分类号： F02B39/14 ,  F01D25/168 ,  F01D25/18 ,  F02B37/10 ,  F02B39/10 ,  F05D2220/40 ,  F16C17/04 ,  F16C33/1045 ,  F16C2360/24 ,  Y02T10/144

摘要： Object The invention provides a supercharger which is provided with a thrust bearing in an outer side of a radial bearing, and can smoothly discharge a fed lubricating oil from a bearing portion so as to reduce a resistance generated by the lubricating oil.Means to Solve the Problems The supercharger is provided with a thrust bearing (30) rotatably supporting a thrust force applied to a turbine shaft (12). The thrust bearing (30) is constituted by a disc-shaped thrust collar (32) rotating together with the turbine shaft, and a turbine side thrust bearing (34) and a compressor side thrust bearing (36) inhibiting a movement in an axial direction of the thrust collar. The compressor side thrust bearing (36) has an oil feed flow path (36a) feeding a lubricating oil to a surface coming into contact with a thrust collar from an inner side of a housing, an annular concave groove (36b) provided in an inner surface of a hollow through hole through which the turbine shaft passes, and an oil discharge flow path (36c) dropping down the lubricating oil reserved within the concave groove downward.

摘要翻译： 发明内容本发明提供一种增压器，其在径向轴承的外侧设置有止推轴承，并且可以从轴承部分平滑地排出供给的润滑油，以便减少由润滑油产生的阻力。 解决问题的手段增压器设置有可旋转地支撑施加到涡轮轴（12）的推力的推力轴承（30）。 止推轴承（30）由与涡轮机轴一起旋转的圆盘状止推环（32）和涡轮侧推力轴承（34）和压缩机侧推力轴承（36）构成，从而阻止轴向移动 的推力领。 压缩机侧止推轴承（36）具有供油流路（36a），该供油流路（36a）将润滑油供给到与外壳的内侧与止推环接触的面，设置在内侧的环状凹槽（36b） 涡轮机轴通过的中空通孔的表面和向下凹入凹槽内保留的润滑油的排油流路（36c）。