Dual pressure control for a rotor brake actuator for vertical lift aircraft
US9004614B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2013 |
| Grant date | Apr 14, 2015 |
| Priority date | — |
| Expiry date | Oct 9, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T15/02
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
In some aspects, a master cylinder assembly for vertical lift aircraft is configured to move pressurized fluid through a conduit in response to applied movement of an input lever. A low pressure relief valve can be connected to a first conduit to limit pressure to a low level. An isolation valve can be connected to the first conduit and configured to isolate the low pressure relief valve from the conduit when engaged. A high pressure relief valve can be connected to a second fluid conduit to limit pressure to a high level. In some aspects, a rotor brake actuator is fluidly connected to the first conduit and the second conduit and configured to engage a rotor brake in response to hydraulic fluid pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.