公开(公告)号：US20150233384A1

公开(公告)日：2015-08-20

申请号：US14184122

申请日：2014-02-19

Applicant: HONEYWELL INTERNATIONAL INC.

Inventor： Glenn F. Thompson ,  Rick Johnson ,  John Mason ,  Mike Guidry ,  Patrick Beresewicz

IPC: F04D29/16 ,  F04D19/02

CPC classification number: F04D29/5846 ,  F04C29/047 ,  F04D17/12 ,  F04D17/125 ,  F04D19/02 ,  F04D25/06 ,  F04D25/0606 ,  F04D29/0513 ,  F04D29/056 ,  F04D29/102 ,  F04D29/164 ,  F04D29/5806 ,  F04D29/584 ,  F04D29/5853

Abstract: A mechanism for differential pressure sealing for use in a compressor, such as for fuel cell applications, is described. In a dual-stage compressor, a low pressure side and/or a high pressure side of the dual-stage compressor may include a compressor wheel supported by a shaft that can rotate about an axis of the shaft. A seal carrier may be provided that rotates with the compressor wheel and includes a groove for receiving a sealing ring, which may be a split expansion ring. A static seal plate may be positioned around a periphery of a portion of the seal carrier, such that the sealing ring can seal against a contact surface of the static seal plate when received in the groove in order to create a pressure differential seal. The low pressure side may include one sealing ring, whereas the high pressure side may include two sealing rings positioned in series.

Abstract translation: 描述了用于压缩机（例如用于燃料电池应用）的差压密封机构。 在双级压缩机中，双级压缩机的低压侧和/或高压侧可以包括由轴支撑的压缩机叶轮，所述压缩机叶轮可绕轴的轴线旋转。 可以设置与压缩机叶轮一起旋转的密封载体，并且包括用于接收密封环的凹槽，所述密封环可以是分开的膨胀环。 静密封板可以围绕密封载体的一部分的周边定位，使得当密封环容纳在凹槽中时密封环可以密封抵靠静态密封板的接触表面，以便产生压差密封。 低压侧可以包括一个密封环，而高压侧可以包括串联定位的两个密封环。