Hydraulic tensioner
US7226376B2 · kind B2 · utility
4Cited by
1References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2004 |
| Grant date | Jun 5, 2007 |
| Priority date | — |
| Expiry date | Sep 2, 2025 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2007/0891
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
In a hydraulic tensioner, an oil pressure control recess, at a proximal end of a cylindrical, plunger-receiving hole, receives from an oil supply, and also receives oil which oozes past a check valve and an inner sleeve inside the plunger, thereby returning the oil, which would leak to the outside in a conventional hydraulic tensioner, to the interior of the plunger.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.