Back to results
US 11,306,790 B2Granted
Hybrid electric and hydraulic brake system
AssigneeGoodrich Corporation
InventorRichard A Poisson
Life of this patent
Estimating the term…
Abstract
A braking system is provided. The braking system may comprise a brake stack and an electromechanical actuator mechanically coupled to the brake stack. A first hydraulic chamber may also be mechanically coupled to the brake stack and in fluid communication with a first piston of the electromechanical actuator. A second piston may be in fluid communication with the first hydraulic chamber. The second piston may also be configured to translate towards the brake stack in response to a translation of the first piston.
Claims7
A hybrid actuation system, comprising:
- a first electromechanical actuator comprising a first piston;
- a first hydraulic chamber mechanically coupled to the first electromechanical actuator with the first piston in fluid communication with the first hydraulic chamber;
- a second piston in fluid communication with the first hydraulic chamber, the second piston configured to translate in response to a translation of the first piston;
- a second hydraulic chamber in fluid communication with the first hydraulic chamber;
- a third hydraulic chamber in fluid communication with the second hydraulic chamber;
- a first valve configured to equalize a first hydraulic pressure between the first hydraulic chamber and the second hydraulic chamber in response to the first valve being in a first open position;
- a second valve configured to equalize a second hydraulic pressure between the second hydraulic chamber and the third hydraulic chamber in response to the second valve being in a second open position;
- a second electromechanical actuator comprising a third piston, the second electromechanical actuator mechanically coupled to the second hydraulic chamber with the third piston in fluid communication with the second hydraulic chamber, wherein the first electromechanical actuator and the second electromechanical actuator actuate independently in response to the first valve being in a first closed position and the second valve being in a second valve closed position.
5 more elements
Dependencies are inferred from the claim text.