Control means for a plurality of mechanically coupled hydrostatic machines with variable volume in a drive system with impressed pressure
US4747268A · kind A · utility
6Cited by
3References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 23, 1986 |
| Grant date | May 31, 1988 |
| Priority date | — |
| Expiry date | Oct 23, 2006 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B49/06
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A plurality of mechanically coupled secondarily controlled hydrostatic machines with variable volume are connected to a line with impressed system pressure fed by a primary unit. By reducing the variable volume to 0 in individual hydrostatic machines the remaining machines are subjected to a higher torque which results in a greater pivot angle of the remaining secondary units. As a result the efficiency and controllability are improved. The changeover is effected in dependence upon an upper and lower switching point corresponding to the pivot angle of the unit remaining in engagement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.