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US 12,480,534 B2Granted
Valve and aircraft
AssigneeLiebherr-Aerospace Lindenberg GmbH
InventorsAndreas Dürner, Thomas Sauterleute, Anton Gaile
Life of this patent
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Abstract
The present disclosure relates to a valve, preferably a continuous valve or a proportional valve, wherein the valve comprises means configured to control and/or regulate a pressure and/or flow of a fluid, wherein the means are further configured to effect at least one further function or to participate in the function.
Claims16
A valve, the valve comprising a spool within a spool sleeve,
- wherein the spool is configured to move axially relative to the spool sleeve between a neutral position and an extreme position,
- wherein, when the spool moves in a first direction from the neutral position to a first position between the neutral position and the extreme position, a first control opening in the spool sleeve is fluidically coupled to a first outlet in the spool sleeve while a second control opening in the spool sleeve is blocked,
- wherein, when the spool moves further in the first direction from the first position towards the extreme position, the second control opening is fluidically coupled to a second outlet in the spool sleeve, the second outlet in the spool sleeve fluidically coupled to a consumer, and
- wherein the first outlet communicates hydraulic pressure from the first control opening to a pressure sensor, directs the hydraulic pressure to open a brake in a high lift system, and/or directs the hydraulic pressure to a mode valve of a primary flight control system when the first outlet is fluidically coupled to the first control opening.
1 more element
A method of operating a continuous or proportional valve, comprising:
- controlling and/or regulating a pressure and/or flow of a fluid, wherein controlling and/or regulating the pressure and/or the flow of the fluid comprises actuating a spool within a spool sleeve of the valve;
- and
- effecting at least one further operation or to participate in enabling the operation, wherein the operation comprises releasing a brake;
- wherein the spool sleeve comprises a plurality of control openings and a plurality of outlets;
- wherein a first outlet of the plurality of outlets is configured to direct operating fluid to the brake and a second outlet of the plurality of outlets is configured to direct the operating fluid to a consumer;
- wherein the valve is configured such that actuating the spool within the spool sleeve a first distance in a first direction from a neutral position comprises fluidly connecting a first control opening of the plurality of control openings and the first outlet while a second control opening of the plurality of control openings remains fluidly isolated from the second outlet, wherein fluidly connecting the first control opening and the first outlet releases the brake;
- wherein the valve is further configured such that actuating the spool within the spool sleeve a second distance in the first direction from the neutral position comprises fluidly connecting the second control opening and the second outlet;
- an wherein the first distance is less than the second distance.
5 more elements
Dependencies are inferred from the claim text.