Hydraulic driven fan system
US10006334B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 29, 2016 |
| Grant date | Jun 26, 2018 |
| Priority date | — |
| Expiry date | Jan 11, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H61/452
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A hydraulic driven fan system includes at least one first fan motor and a second fan motor connected in series with each other. The system also includes a fixed displacement pump configured to supply a pressurized flow of a hydraulic fluid to the at least one first and second fan motors. The system includes a proportional flow control valve in fluid communication with the at least one first fan motor and configured to allow a regulated amount of the pressurized flow of the hydraulic fluid there through to the corresponding at least one first fan motor. The system includes a pressure compensator disposed parallel to the proportional flow control valve and configured to maintain a pressure difference across the proportional flow control valve. The system further includes a proportional pressure relief valve disposed parallel to the second fan motor and configured to control a pressure difference across the second fan motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.