Hydraulic fluid system
US8826654B2 · kind B2 · utility
5Cited by
18References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 31, 2011 |
| Grant date | Sep 9, 2014 |
| Priority date | — |
| Expiry date | Feb 23, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B2211/7058
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hydraulic fluid system for a mobile machine includes a closed loop hydraulic fan circuit. The hydraulic fan circuit includes a primary pump, a motor fluidly connected to the primary pump, and a fan driven by the motor. The hydraulic fan circuit also includes a supply passage extending from the primary pump to the motor, a return passage extending from the motor to the primary pump, and a first accumulator selectively fluidly connected to at least one of the supply and return passages via a charge valve. The hydraulic fluid system also includes at least one open loop hydraulic circuit fluidly connected to the first accumulator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.