Hydraulic tensioner with a pressure relief valve
US5577970A · kind A · utility
33Cited by
13References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 11, 1995 |
| Grant date | Nov 26, 1996 |
| Priority date | — |
| Expiry date | Apr 11, 2015 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2007/0891
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hydraulic tensioner having a plunger slidably fitted in a cavity in a housing and biased in a protruding direction by a spring and fluid. A check valve permits fluid to only flow into, and thereby protrude the plunger, but not out of the cavity. A pressure relief valve is mounted on the housing and is in communication with the cavity. The relief valve includes a flat spring member applying a preload against a reed valve to seal an exhaust passageway connecting to the cavity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.