 Absorption heat pump and desiccant assisted air conditioning apparatus |
| According to the first embodiment of the invention, a desiccant assisted air conditioning apparatus ... |
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| Absorption heat pump and desiccant assisted air conditioner |
| It is an object of the present invention to provide an absorption heat pump device for use in an ... |
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| Desiccant assisted air conditioning system |
| It is therefore necessary to develop a high efficiency air conditioning unit combining desiccant ... |
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| Desiccant assisted air conditioning apparatus |
| It is therefore an object of the present invention to achieve a desiccant assisted air conditioning ... |
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| System and method for controlling communication-executable refrigerator |
| Therefore, the present invention has been made in view of the above problems, and it is an object ... |
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| Film cartridges, films and cameras adapted for use therewith |
| It is a general object of the present invention to provide film cartridges, films and cameras ... |
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| Reflective beam concentrator |
| I claim: 1. A reflective beam concentrator consisting of an annular concave mirror and a conical ... |
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| Conical beam concentrator |
| I claim: 1. A conical beam concentrator comprising a single lens (1) having a planar section (2) ... |
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| Collimating compound catoptric immersion lens |
| I claim: 1. Apparatus for detecting light emitted from a source comprising first and second ... |
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Cooling system for superconducting magnet
| Details |
Inventors: Gamble, Bruce B.; Sidi-Yekhlef, Ahmed;
Assignee: American Superconductor Corporation (Westborough, MA)
Primary Examiner: Kilner; Christopher B.
Assistant Examiner:
Attorney, Agent or Firm: Fish & Richardson P.C.
A cooling system is configured to control the flow of a refrigerant by controlling the rate at which the refrigerant is heated, thereby providing an efficient and reliable approach to cooling a load (e.g., magnets, rotors). The cooling system includes a conduit circuit connected to the load and within which a refrigerant circulates; a heat exchanger, connected within the conduit circuit and disposed remotely from the load; a first and a second reservoir, each connected within the conduit, each holding at least a portion of the refrigerant; a heater configured to independently heat the first and second reservoirs. In a first mode, the heater heats the first reservoir, thereby causing the refrigerant to flow from the first reservoir through the load and heat exchanger, via the conduit circuit and into the second reservoir. In a second mode, the heater heats the second reservoir to cause the refrigerant to flow from the second reservoir through the load and heat exchanger via the conduit circuit and into the first reservoir. |
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DETAILED DESCRIPTION What is claimed is: 1.
A cooling system for circulating a refrigerant flowing through a heat exchanger which is connected to a cryocooler coldhead, the cooling system delivering the refrigerant to a load and comprising: a conduit circuit connected to the load and within which the refrigerant circulates; a first and a second reservoir, each connected within the conduit, each holding at least a portion of the refrigerant; a heater configured to independently heat the first and second reservoirs, the heater operating, in a first mode, to heat the first reservoir, thereby causing the refrigerant to flow from the first reservoir through the load and heat exchanger via the conduit circuit and into the second reservoir, and operating, in a second mode, to heat the second reservoir to cause the refrigerant to flow from the second reservoir through the load and heat exchanger via the conduit circuit and into the first reservoir.
2.
The system of claim 1 further comprising a first valve connected within the conduit circuit, the first valve having an input coupled to the first and the second reservoirs and an output coupled to the load.
3.
The system of claim 2 further comprising a second valve connected within the conduit circuit, the second valve having an input coupled to an output of the heat exchanger and first reservoir.
4.
The system of claim 3 further comprising a third valve connected within the conduit circuit, the third valve having an input coupled to an input of the heat exchanger and the first and second reservoirs, and the conduit circuit includes a venting backup line coupled between the heat exchanger, the third valve and the first and second reservoirs.
5.
The system of claim 1 wherein the heater comprises a pair of heating elements, each heating element associated with a respective one of the first and second reservoirs.
6.
The system of claim 1 further comprising a cold box which encloses the heat exchanger and the first and the second reservoirs.
7.
The system of claim 1 wherein the conduit circuit includes vacuum insulated transfer lines
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Lighting 
