Hydromechanical power management of fixed displacement boost pumps
US9404573B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 1, 2013 |
| Grant date | Aug 2, 2016 |
| Priority date | — |
| Expiry date | Dec 21, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B2211/20584
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hydraulic apparatus and a method of controlling the hydraulic apparatus are disclosed. The hydraulic apparatus includes a first pump having a first fixed displacement, a second pump having a second fixed displacement, and a diverter. The diverter includes a first diverter inlet port fluidly coupled to a discharge of the second pump, a first diverter outlet port fluidly coupled to a discharge of the first pump, and a second diverter outlet port fluidly coupled to a low pressure system, the low pressure system having a fluid pressure lower than a fluid pressure of the discharge of the first pump. The diverter is operable to selectively vary fluid communication between the first diverter inlet port and either the first diverter outlet port or the second diverter outlet port based on a reference pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.