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Life support system

閱讀：668發(fā)布：2020-11-07

專利匯可以提供Life support system專利檢索，專利查詢，專利分析的服務。并且A lightweight life support system for extravehicular space activity which may be either mounted in a back-pack or integrated into a protective suit. Two subsystems are provided to maintain the suit inhabitant in his environment. The first subsystem is an open loop, single pass ventilation system, having a high-pressure oxygen and mixed gas storage which is maintained within lightweight, stress-limited pressure vessels. A breathing bag cooperates with the open loop system to meet the peak respiratory demands. The second subsystem comprises a protective suit having a duct network, a liquid pump, and a sublimator-heat exchanger which in combination provide a suitable thermal condition.，下面是Life support system專利的具體信息內容。

1. A life support system for an individual comprising: a. an atmosphere-impervious suit enclosing said individual; b. closed loop means secured to said suit for regulating the thermal condition of said individual''s said closed loop means including: i. a liquid coolant garment in pressure contact with the body of said individual, said liquid coolant garment having an input port and an output port; ii. a pump accumulator having a liquid coolant therein, said pump accumulator having an input port and an output port; iii. a pulse pump having a first and second port connected to said output port of said pump accumulator and said input port of said liquid coolant garment, respectively; iv. a sublimator-heat exchanger having a first and second port connected to said output port of said liquid coolant garment and said input port of said pump accumulator, respectively, said sublimator-heat exchanger including a water storage unit; and c. open loop means secured to said suit for providing the ventilation requirements of said individual, said open loop means cooperating with said closed loop means to insure proper regulation of the terminal condition of said individual.
2. A life support system as recited in claim 1 wherein said atmosphere-impervious suit comprises: a rigid torso section; four sections covering the extremities of said individual, said four sections connected to said rigid torso section, said four sections having flexible joints relative to respective natural joints of said individual; and a helmet connected to the upper part of said rigid torso section so as to enclose the head of said individual, said helmet having an input port and an output port.
3. A life support system as recited in claim 2 wherein said open loop means comprises: compressed gas means; and a breathing bag having an input port and an output port, said output port connected to said input port of said helmet, said input port of said breathing bag adapted to receive gas from said compressed gas means, said breathing bag constructed in the shape of a vest covering the chest and back area of said individual, said breathing bag adapted to be retained between said rigid torso section and said chest and back area of said individual so as to be compressed and inflated in accordance with the breathing pattern of said individual.
4. A life support system as recited in claim 3 wherein said compressed gas means cooperates with said pulse pump of said closed means for ensuring a flow of said liquid coolant through said liquid coolant garment.
5. A life support system as recited in claim 4 comprising: drying means for drying the skin surface of said individual, said drying means having an input port and an output port, and dehumidifying means coupled between output port of said helmet of said suit and said input port of said drying means for cooling and dehumidifying the expired gas of said individual.
6. A life support system as recited in claim 5 wherein said dehumidifying means comprises: a gas cooler having an input port and an output port, said input port being coupled to said output port of said helmet; a water separator having an input port and first and second output ports, said input port being connected to said output port of said gas cooler, said first output port being connected to said water storage unit and said second output port being connected to said first input port of said drying means.
7. A life support system as recited in claim 6 wherein said drying means comprises a network of four ducts coupled from said input port of said drying means to the responsive outer extremities of said individual, said ducts being capable of carrying the cooled, low-moisture content gas from said water separator, and said output port of said drying means is located in said rigid torso section of said suit.
8. A life support system for an individual comprising: an atmosphere-impervious suit enclosing said individual, said suit including a rigid torso section, four sections connected to said rigid torso section and covering the respective extremities of said individual, said four sections having flexible joints relative to respective natural joints of said individual, and a helmet connected to the upper part of said rigid torso section, said helmet enclosing the head of said individual and having an input port and an output port; a liquid coolant garment in pressure contact with the body of said individual, said liquid coolant garment having an input port and an output port; a pump accumulator having a liquid coolant therein, said pump accumulator having an input port and an output port; a pulse pump having a first input port and first output port connected to said output port of said pump accumulator and said input port of said liquid coolaNt garment, respectively, said pulse pump further having a second input port and a second output port; a sublimator-heat exchanger having a first input port and first output port connected to said output port of said liquid coolant garment and said input port of said pump accumulator, respectively, said sublimator-heat exchanger including a diverter means for bypassing part of said liquid coolant from entering said sublimator-heat exchanger, said sublimator-heat exchanger further having a second input port and second output port; a water storage unit having a bladder interposed therein for providing a first and second compartment, said first compartment having an input port and said second compartment having an output port, said output port of said first compartment being connected to said second input port of said sublimator-heat exchanger; at least one regulated compressed gas source connected to said second input port of said pulse pump; a breathing bag having an input port and an output port connected to said second output port of said pulse pump and said input port of said helmet, respectively, said breathing bag constructed in the shape of a vest covering the chest and back area of said individual, said breathing bag adapted to be retained between said rigid torso section and said chest and back area of said individual so as to be compressed and inflated in accordance with the breathing pattern of said individual; a gas cooler having an input port and an output port, said input port being coupled to said output port of said helmet; a water separator having an input port and first and second output ports, said input port being connected to said output port of said gas cooler, said first output port being connected to said input port of said water storage unit; and drying means including a network of four input ducts and an output valve, said network of four input ducts coupled between said second output port of said water separator and said respective outer extremities of said individual, said ducts adapted to carry cool, low-moisture content gas from said water separator, and said output valve being located in said rigid torso section of said suit.
9. A life support system for an individual as recited in claim 8 wherein said regulated compressed gas source, said sublimator-heat exchanger, said gas cooler, said pump accumulator, said pulse pump, and said water storage unit are mounted in a backpack means for providing the capability of detaching the substantial bulky items of said life support system when said individual is not required to utilize said life support system during a particular mission.
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