Hydraulic tensioning device for a traction mechanism drive
US7775924B2 · kind B2 · utility
15Cited by
7References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 16, 2005 |
| Grant date | Aug 17, 2010 |
| Priority date | — |
| Expiry date | Feb 1, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2007/0859
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hydraulic tensioning device is provided for a traction mechanism drive, in particular for a chain or belt drive of an internal combustion engine. The device includes a tensioning piston which is guided in a displaceable manner in a cylinder, with a pressure chamber being defined between the tensioning piston and the cylinder which is used to receive hydraulic fluid. A pressure relief valve is provided which limits the pressure in the pressure chamber. The pressure relief valve (8) includes, at least partially, a pre-assembled assembly (10) which can be inserted or is inserted into the tensioning piston (4).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.