公开(公告)号：US09188133B1

公开(公告)日：2015-11-17

申请号：US14593145

申请日：2015-01-09

Applicant: BorgWarner Inc.

Inventor： Andrew Richardson ,  Simon Slater ,  Andrew Taylor

IPC: F04D29/14 ,  F04D29/063 ,  F04D29/056 ,  F04D17/10 ,  F04D29/46

CPC classification number: F04D29/464 ,  F04D17/10 ,  F04D25/024 ,  F04D29/056 ,  F04D29/063 ,  F04D29/143 ,  F04D29/462

Abstract: A product is disclosed for inhibiting oil from entering a turbocharger compressor. A compressor wheel may be disposed in a wheel chamber of a housing to rotate at a range of speeds. The compressor wheel may be surrounded by a collection volute with a diffuser channeling air from the wheel chamber to the collection volute. A shaft may extend through the housing and may be connected to the compressor wheel. The shaft may be supported by a bearing that may be lubricated through an oil circuit. A pressure differential between the wheel chamber and the oil circuit inhibits oil from entering the wheel chamber. The pressure differential may be maintained during rotation of the compressor wheel at a low end of the range of speeds by a collar disposed near a tip of the compressor wheel at an entrance to the diffuser.

Abstract translation: 公开了一种用于抑制油进入涡轮增压器压缩机的产品。 压缩机叶轮可以设置在壳体的轮室中以在一定速度范围内旋转。 压缩机叶轮可以由收集蜗壳包围，扩散器将空气从轮室引导到收集蜗壳。 轴可以延伸穿过壳体并且可以连接到压缩机叶轮。 轴可以由可以通过油路润滑的轴承支撑。 车轮室和油路之间的压差阻止油进入车轮室。 压缩机叶轮在速度范围的低端旋转期间可以通过在扩散器入口处设置在压缩机叶轮的尖端附近的轴环来保持压力差。

公开(公告)号：US20190113046A1

公开(公告)日：2019-04-18

申请号：US15784341

申请日：2017-10-16

Applicant: BorgWarner Inc.

Inventor： Tristram Palmer-White ,  Simon Slater ,  Andrew Rogerson ,  Malcolm Philip Carr

IPC: F04D29/02 ,  F04D29/30

Abstract: A centrifugal compressor wheel assembly that can be employed in devices such as turbochargers or as a component for mechanisms requiring a compressor wheel assembly that includes a tubular insert with a compressor wheel member connected thereto which engages a shaft and a turbocharger including the compressor wheel assembly. The tubular insert has a wall member defining a shaft bore that extends from an inlet end to an opposed outlet end. The wall member has an outer circumferential surface and an opposed inner circumferential surface. At least one engagement member may be defined on the inner circumferential surface. An engagement member may be defined on the outer circumferential surface. The tubular insert can be composed of a suitable metal.