The invention relates to an architecture for a hydraulic circuit associated with actuators (100), such as actuators for airplane brakes, the architecture comprising a main hydraulic circuit (C) having hydraulic components (4, 5 101, 6) and adapted to convey hydraulic fluid pressurized by at least on
The invention relates to an architecture for a hydraulic circuit associated with actuators (100), such as actuators for airplane brakes, the architecture comprising a main hydraulic circuit (C) having hydraulic components (4, 5 101, 6) and adapted to convey hydraulic fluid pressurized by at least one pressure generator (2) associated with a main supply (1) to the actuators (100). The architecture includes an emergency system comprising an auxiliary supply (8) permanently fed by a return circuit (R) collecting the returns from all of the hydraulic components (4, 5,101, 6), the auxiliary supply (8) being connected to the main supply (1) via a relief valve (9). The emergency system further comprising an electrically driven pump unit (10) arranged to take fluid from the auxiliary supply (8) and to inject it into the main circuit (C) downstream from a general check valve (3).
대표청구항▼
1. An architecture for a hydraulic circuit associated with actuators (100), the architecture comprising a main hydraulic circuit (C) having hydraulic components (4, 5 101, 6) and adapted to convey hydraulic fluid pressurized by at least one pressure generator (2) associated with a main supply (1) to
1. An architecture for a hydraulic circuit associated with actuators (100), the architecture comprising a main hydraulic circuit (C) having hydraulic components (4, 5 101, 6) and adapted to convey hydraulic fluid pressurized by at least one pressure generator (2) associated with a main supply (1) to the actuators (100), the architecture further comprising an emergency system, wherein the emergency system comprises an auxiliary supply (8), which is continuously fed by a return circuit (R) collecting the returns that collects returned fluid from all of the said hydraulic components (4, 5, 101, 6), the auxiliary supply (8) itself being connected to the main supply (1) via a relief valve (9), said emergency system further comprising an electrically driven pump unit (10) arranged to take fluid from the auxiliary supply (8) and inject it said fluid into the main circuit (C) downstream from a general check valve (3).2. A hydraulic circuit architecture according to claim 1, wherein the emergency system comprises a branch line (13) connecting the return circuit (R) directly to the main supply (1), a solenoid valve (14) being arranged on said branch line (13) so as to be closed in normal operation and open in the event of an incident occurring in the emergency system.3. A hydraulic circuit architecture according to claim 1, wherein the hydraulic components include an accumulator (6) which is placed on the main circuit (C) downstream from the general check valve (3).4. A hydraulic circuit architecture according to claim 3, wherein the accumulator (6) is associated with a relief valve (7) connected to the return circuit (R).5. A hydraulic circuit architecture according to claim 3, wherein a pressure sensor (17) is associated with the accumulator (6).6. A hydraulic circuit architecture according to claim 2, wherein the hydraulic components include an accumulator (6) which is placed on the main circuit (C) downstream from the general check valve (3), and wherein the main circuit (C) includes means (5, 102) providing direct communication between the accumulator (6) and the actuators (100), said means (5, 102) providing communication being activated when the pressure generator (2) is stopped, a valve (16) also being arranged on the branch line (13) so as to be closed when the direct communication means (5, 102) are activated.7. A hydraulic circuit architecture according to claim 1, wherein the pump unit (10) comprises a constant flow rate pump (11) associated with a variable speed electric motor (12).8. An architecture according to claim 1 for a hydraulic circuit associated with the brakes (100) of an airplane braking circuit, wherein the hydraulic components include at least one braking selector (4) which is arranged in the main circuit (C) downstream from the general check valve (3), said braking selector (4) having a return line connected to said return circuit (R).9. A hydraulic circuit architecture according to claim 8, wherein the hydraulic components include at least one parking selector (5) arranged in the main circuit (C), together with an accumulator (6) arranged in said main circuit upstream from said parking selector, the parking selector (5) having a return line connected to said return circuit (R).10. A braking circuit according to claim 8, wherein a shuttle valve (102) is installed upstream from each brake (100), each shuttle valve (102) being connected firstly to the braking selector (4) via a proportional control valve (101), each proportional control valve (101) having a return line connected to said return circuit (R), and secondly to the parking selector (5).
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이 특허에 인용된 특허 (2)
Bourguet, Vincent; Hamzeh, Walid, Architecture for the hydraulic braking system of an aircraft.
Carns, James A.; Cutler, Theron L.; Shelly, Mark A.; Van Kampen, Benjamin P., Fittings with redundant seals for aircraft fuel lines, fuel tanks, and other systems.
Carns, James A.; Cutler, Theron L.; Shelly, Mark A.; Van Kampen, Benjamin P., Fittings with redundant seals for aircraft fuel lines, fuel tanks, and other systems.
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