Patent · US Expired

Jointing structure of rotor and shaft

US5158390A · kind A · utility

29Cited by
6References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 7, 1991
Grant dateOct 27, 1992
Priority date
Expiry dateMar 7, 2011

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T403/70
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

A jointing structure of a rotor and a shaft has a rotor made of aluminum alloy having a through-hole at a center thereof, and a shaft made of steel which is to be press fitted into the through-hole of the rotor, the shaft being formed at least at a part of a surface to be jointed with the through-hole of the rotor with a hump and valley portion along an axis thereof, the outer diameter of the hump portion being larger than the inner diameter of the through-hole, the hump and valley portion of the shaft being press fitted into the through-hole of the rotor.

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