Hydraulic tensioner with passage of variable cross-section between the piston and bore
US6053831A · kind A · utility
10Cited by
4References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 8, 1998 |
| Grant date | Apr 25, 2000 |
| Priority date | — |
| Expiry date | Dec 8, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2007/0859
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hydraulic chain tensioner has a fluid leakage passageway along the outside of the piston surface that has a variable cross-section. The tensioner has a tapered or stepped geometry in either the bore of the tensioner or in the piston or both the bore and the piston. Due to the unique geometry, friction is reduced, flow leakage is controlled, and the wear of the tensioner is improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.