Patent · US Expired

Non-separating diffuser for holes produced by a two step process

US6897401B2 · kind B2 · utility

12Cited by
6References
15Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJul 31, 2003
Grant dateMay 24, 2005
Priority date
Expiry dateJul 31, 2023

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB23H9/10
  • WIPO fieldMachine tools
  • WIPO sectorMechanical engineering

Abstract

A method for forming non-separating diffusers in a part includes fabricating at least one metering hole in a part, and fabricating at least one diffuser hole with an electrode comb in the part such that the diffuser hole intersects the metering hole at a transition region. The electrode comb includes a tooth including a nose comprised of a plurality of diffuser surfaces intersecting at a point on a tooth centerline. Each diffuser surface has a diffuser angle, and at least one of the diffuser surfaces is truncated by an offset from the tooth centerline.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.