| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a turbocompressor allowing expansion of an operation area to a low flow rate side without increasing a circulated air flow rate. <P>SOLUTION: The turbocompressor 1 includes: an impeller 11 disposed rotatably around a rotational axis L; a housing 21 having a nearly cylindrical shape along the rotational axis L, and journaled with the impeller 11 thereinside; an annular cavity part 34 communicating with the inside of a cylindrical wall of the housing 21 along the peripheral direction; an upstream side opening part 32 opening to the upstream of the impeller 11 through an upstream side communication part 33 communicating with the upstream side of the cavity part 34; and a downstream side opening part 36 opening beside the impeller 11 through a downstream side communication part 35 communicating with the downstream side rather than the upstream side communication part 33 of the cavity part 34. The upstream side opening part 32 is formed with plate-like straightening plates 42 projecting to the inside diameter side along the rotational axis L direction at even intervals in the peripheral direction. <P>COPYRIGHT: (C)2012,JPO&INPIT |
