Hydraulic fluid cooling apparatus and method
US7690197B2 · kind B2 · utility
2Cited by
4References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 30, 2006 |
| Grant date | Apr 6, 2010 |
| Priority date | — |
| Expiry date | May 21, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B2211/613
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hydraulic drive apparatus comprises a main pump for pumping hydraulic fluid through a hydraulic load, a charge pump for continuously pumping pressurized hydraulic fluid to the main pump, and a hydraulic fluid cooler. At least a portion to the hydraulic fluid pumped through the hydraulic load is returned under pressure to the charge pump and the charge pump pumps the pressurized hydraulic fluid through the hydraulic fluid cooler to the main pump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.