Track tension adjustment management actuator
US6682155B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 4, 2002 |
| Grant date | Jan 27, 2004 |
| Priority date | — |
| Expiry date | Dec 4, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D55/30
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A track tension actuator is provided for a track assembly having, an idler wheel, a drive wheel, a drive track entrained about the drive wheel and idler, and a hydraulic motor operable to advance the drive wheel. A drive circuit is operable to supply pressurized fluid to the hydraulic motor. The actuator is coupled to the idler wheel, and includes a travel chamber, travel piston, a recoil chamber, and a recoil piston. The recoil chamber is pressurized to urge the recoil piston in a first direction away from the drive wheel. The drive fluid pressurizes the travel piston, which in turn contacts and urges the travel piston in a second direction against the recoil piston to reduce the track tension.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.