Longitudinally adjustable connecting rod
US6604496B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 2002 |
| Grant date | Aug 12, 2003 |
| Priority date | — |
| Expiry date | Mar 18, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/2151
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a longitudinally adjustable connecting rod (1), in which a piston part (2) and a shaft part (9) are telescopically inserted one inside the other. Piston part and shaft part can be locked together at certain lengths by pins (5a, 5a′, 5b, 5b′) supported in the piston part skirt (8), which engage in associated recesses (4a, 4a′, 4b, 4b′) on the shaft part skirt (3). Every two pins (5a, 5a′; 5b, 5b′) are pushed apart by springs (11a, 11b) situated between them. Through corresponding feed ducts (7a) a hydraulic medium can be purposely delivered to the recesses in the piston part skirt (3), in order to push pins situated therein back into the shaft part skirt (8).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.