Emergency supply system for an aircraft control system
First Claim
1. An emergency supply system for maintaining the emergency flight control of a high-performance aircraft of aerodynamically unstable design comprising two substantially identical parallel-connected hydraulic systems for actuating the control surfaces of the aircraft required for flight, the hydraulic systems under normal operating conditions being supplied with energy by two independent hydraulic pumps operatively connected to the propulsion system of the aircraft, each hydraulic system including at least two subsystems operatively connected to at least one rudder of the aircraft and being interconnectable in terms of energy by a power transmission unit, the supply system further comprising an electric on-board energy system, three different electric energy sources being provided in the electric on-board energy system comprising at least one propulsion system driven generator, at least one rechargeable battery, and at least one non-rechargeable emergency battery, the power transmission unit operatively connected to each of the three electric energy sources such that power therefrom may be supplied to the two hydraulic systems, and further allowing power from each of the two hydraulic systems to be transmitted to the electric on-board system for recharging the rechargeable battery and providing power to other electric power using devices, said subsystems including means enabling them selectively connected and disconnected by said power transmission unit.
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Accused Products
Abstract
An emergency supply system for maintaining the emergency flight control of a high-performance aircraft of aerodynamically unstable design having three energy systems, namely, two identical hydraulic systems, connected in parallel for redundancy, for actuation of the control surfaces of the aircraft required for its ability to fly, and an electric on-board system having at least one generator, a rechargeable battery and a non-rechargeable emergency battery, the three energy systems being interconnectible in terms of energy by a power transmission unit, and wherein the two hydraulic systems are divided into subsystems associated with single or several rudder functions which, if necessary, can be disconnected singly.
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Citations
5 Claims
- 1. An emergency supply system for maintaining the emergency flight control of a high-performance aircraft of aerodynamically unstable design comprising two substantially identical parallel-connected hydraulic systems for actuating the control surfaces of the aircraft required for flight, the hydraulic systems under normal operating conditions being supplied with energy by two independent hydraulic pumps operatively connected to the propulsion system of the aircraft, each hydraulic system including at least two subsystems operatively connected to at least one rudder of the aircraft and being interconnectable in terms of energy by a power transmission unit, the supply system further comprising an electric on-board energy system, three different electric energy sources being provided in the electric on-board energy system comprising at least one propulsion system driven generator, at least one rechargeable battery, and at least one non-rechargeable emergency battery, the power transmission unit operatively connected to each of the three electric energy sources such that power therefrom may be supplied to the two hydraulic systems, and further allowing power from each of the two hydraulic systems to be transmitted to the electric on-board system for recharging the rechargeable battery and providing power to other electric power using devices, said subsystems including means enabling them selectively connected and disconnected by said power transmission unit.
Specification