Patent · US Expired

Globoid worm type rotary machine

US4036567A · kind A · utility

7Cited by
4References
6Claims
0Family size

Assignee

Inventor

Key dates

Filing dateApr 8, 1975
Grant dateJul 19, 1977
Priority date
Expiry dateApr 8, 1995

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T74/19842
  • WIPO fieldEngines, pumps, turbines
  • WIPO sectorMechanical engineering

Abstract

In a globoid worm type compressor or expander comprising a casing, a globoid worm rotor in the casing and pinions meshing with the worm rotor, provision is made to effect sealing between the thread of the worm and each tooth of the pinions. The arrangement is such that the pinion is mounted on its shaft with the intermediary of a resilient member so that each tooth may be slightly displaced in both circumferential and diametric directions whereby to adapt itself to the thread of the worm to provide gas-tight seal between the tooth and the thread of the worm.

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