ROTARY FLUID ELEMENT AND METHOD OF CORRECTING UNBALANCE OF ROTARY FLUID ELEMENT

摘要

An object is to provide a rotary fluid element and a method of correcting unbalance of a rotary fluid element, whereby unbalance of the rotary fluid element can be corrected multiple times in a necessary and sufficient amount without sacrificing strength of blades. A rotary fluid element includes: a plurality of blades extending in a centrifugal direction on an outer peripheral surface of a boss portion and disposed at intervals in a circumferential direction; and a cut-remove portion for reducing unbalance disposed in a blade gap between the blades adjacent in the circumferential direction. The cut-remove portion includes a first cut-remove portion which is cut and removed on a radially-outer rim portion between the blades, and an additional cut-remove portion which is cut and removed on a radially-inner portion disposed inside the first cut-remove portion with respect to a radial direction.

主权项

1. A rotary fluid element, comprising:
a plurality of blades extending in a centrifugal direction on an outer peripheral surface of a boss portion and disposed at intervals in a circumferential direction; and a cut-remove portion for reducing unbalance disposed in a blade gap between the blades, wherein the cut-remove portion includes
a first cut-remove portion which is cut and removed on a radially-outer portion in the blade gap, andat least one additional cut-remove portion which is cut and removed on a radially-inner portion disposed inside the first cut-remove portion with respect to a radial direction.