Rolling-contact cylindrical element
US6311660A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 15, 2000 |
| Grant date | Nov 6, 2001 |
| Priority date | — |
| Expiry date | Sep 15, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/2107
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
In a case where crowning is provided on a contact surface of a tappet roller by the combination of, for example, two circular arcs, a logarithmic crowning is determined in which an edge load does not occur in the bearing pressure even if its inclination with respect to the cam is 5/1,000 or thereabouts, and a crowning profile is set between two logarithmic crownings. In addition, the crowning profile is defined so as to be present between the logarithmic crownings in a case where the axial position x with the center in the direction of a bus set as an origin is at a position 0.85-fold and at a position 1.0-fold the half L.sub.e of the effective contact length, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.