发明名称 CENTRIFUGAL COMPRESSOR
摘要 A centrifugal compressor (1) includes: an impeller (2) having full blades (21) and splitter blades (22); a shroud wall (3) forming an intake (12) and having a shape conforming to the impeller (2); and a bleed chamber (4) facing an outer surface of the shroud wall (3). The bleed chamber (4) communicates with a discharge space having a pressure equal to or lower than a pressure of a working fluid at the intake (12). The shroud wall (3) is provided with a slit (32) (a bleeding passage) that directs a portion of the working fluid that has flowed into a space between the full blade (21) and a pressurizing surface of the splitter blade (22) to the bleed chamber (4).
申请公布号 US2014202202(A1) 申请公布日期 2014.07.24
申请号 US201314126311 申请日期 2013.03.22
申请人 Panasonic Corporation 发明人 Taguchi Hidetoshi;Nishiwaki Fumitoshi;Komori Kou
分类号 F04D27/02 主分类号 F04D27/02
代理机构 代理人
主权项 1. A centrifugal compressor that compresses a working fluid, comprising: an impeller comprising alternately arranged full blades and splitter blades, the splitter blades being shorter than the full blades; a shroud wall forming an intake and having a shape conforming to the impeller; and a bleed chamber that communicates with a discharge space having a pressure equal to or lower than a pressure of the working fluid at the intake, the bleed chamber facing an outer surface of the shroud wall,wherein the shroud wall is provided with a bleeding passage that directs a portion of the working fluid that has flowed into a space between the full blade and a pressurizing surface of the splitter blade to the bleed chamber, and in a meridional projection obtained by rotationally projecting the full blade, the splitter blade, and the shroud wall on a meridian plane passing through a rotational axis of the impeller, a point of intersection of an upstream edge of the splitter blade and an outward edge of the splitter blade is located at a position closer to the intake than an intake-side edge of an opening of an inlet of the bleeding passage.
地址 Kadoma-shi, Osaka JP