System and method for actuating and controlling a transfer case
US6655138B2 · kind B2 · utility
9Cited by
2References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2002 |
| Grant date | Dec 2, 2003 |
| Priority date | — |
| Expiry date | Apr 30, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2048/0209
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
One aspect of the control system provides a hydraulic control system for a transfer case that includes an actuator for generating fluid pressure. The system also includes an isolation valve and a control valve in fluid communication with the actuator. The isolation valve is in a normally closed position and the control valve is in a normally open position. The system further includes a piston for applying fluid pressure to a device of the transfer case. Another aspect provides a method for controlling the hydraulic pressure to a transfer case.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.