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US 6,718,762 B2Granted
Contingency hydraulic power unit
AssigneeThe Boeing Company
InventorTibor Farkas
Life of this patent
Estimating the term…
Abstract
An hydraulic power assembly 10 is provided, including at least one primary hydraulic power unit 20 supplying hydraulic fluid 30 to a hydraulic system 34, and a contingency hydraulic power unit 50 utilizing the orbiter's helium storage tank 52 to power a contingency hydraulic drive 56 to supply hydraulic fluid 30 from a contingency hydraulic fluid reserve 58 to the hydraulic system 34 during peak loading conditions.
Claims23
A spacecraft hydraulic power assembly, comprising:
- at least one primary hydraulic power unit supplying hydraulic fluid to a hydraulic system;
- and
- at least one contingency power unit in communication with said hydraulic system, said at least one contingency power unit capable of providing additional flow of hydraulic fluid to said hydraulic system, said at least one contingency power unit comprising:
- a helium storage tank;
- a gas turbine in communication with said helium storage tank;
- and
- a contingency hydraulic fluid reserve in communication with said hydraulic system;
- wherein said gas turbine, powered by said helium storage tank, supplies hydraulic fluid stored in said contingency hydraulic fluid reserve to said hydraulic system.
5 more elements
A spacecraft hydraulic power assembly comprising:
- at least one primary hydraulic power unit supplying hydraulic fluid to a hydraulic system;
- at least one contingency power unit in communication with said hydraulic system, said at least one contingency power unit powered by at least one helium storage tank and capable of providing additional flow of hydraulic fluid to said hydraulic system;
- and
- at least one control valve controlling communication between said contingency power unit and said at least one primary hydraulic power unit.
1 more element
A spacecraft hydraulic power assembly comprising:
- at least one primary hydraulic power unit supplying hydraulic fluid to a hydraulic system;
- at least one contingency power unit in communication with said hydraulic system, said at least one contingency power unit powered by at least one helium storage tank and capable of providing additional flow of hydraulic fluid to said hydraulic system, said contingency power unit in communication with each of said at least one primary hydraulic power units.
A spacecraft hydraulic power assembly comprising:
- a first primary hydraulic power unit, including a first hydraulic fluid reserve and a first primary hydraulic drive, said first primary hydraulic power unit supplying hydraulic fluid from said first hydraulic fluid reserve to a hydraulic system;
- a second primary hydraulic power unit, including a second hydraulic fluid reserve and a second primary hydraulic drive, said second primary hydraulic power unit supplying hydraulic fluid from said second hydraulic fluid reserve to said hydraulic system;
- and
- a contingency power unit in communication with said hydraulic system, said at least one contingency power unit including a helium storage tank, a contingency hydraulic power drive, and a contingency hydraulic fluid reserve, said helium storage tank powering said contingency hydraulic power drive to supply hydraulic fluid from said contingency hydraulic fluid reserve to said hydraulic system upon failure of one of said primary hydraulic power units, said contingency hydraulic power drive comprising a gas turbine.
1 more element
A spacecraft hydraulic power assembly comprising:
- a first primary hydraulic power unit, including a first hydraulic fluid reserve and a first primary hydraulic drive, said first primary hydraulic power unit supplying hydraulic fluid from said first hydraulic fluid reserve to a hydraulic system;
- a second primary hydraulic power unit, including a second hydraulic fluid reserve and a second primary hydraulic drive, said second primary hydraulic power unit supplying hydraulic fluid from said second hydraulic fluid reserve to said hydraulic system;
- and
- a contingency power unit in communication with said hydraulic system, said at least one contingency power unit including a helium storage tank, a contingency hydraulic power drive, and a contingency hydraulic fluid reserve, said helium storage tank powering said contingency hydraulic power drive to supply hydraulic fluid from said contingency hydraulic fluid reserve to said hydraulic system upon failure of one of said primary hydraulic power units;
- said contingency power unit comprising:
- a controller;
- and
- a pulse control valve, said controller and pulse control valve regulating delivery of helium from said helium storage tank to said gas turbine.
5 more elements
A spacecraft hydraulic power assembly comprising:
- at least one primary hydraulic power unit supplying hydraulic fluid to a hydraulic system;
- at least one contingency power unit in communication with said hydraulic system, said at least one contingency power unit powered by at least one main propulsion gas storage tank and capable of providing additional flow of hydraulic fluid to said hydraulic system.
Dependencies are inferred from the claim text.