Leak detector device
AssigneeSun-Econ, Inc.
InventorRaymond Orlowski
Life of this patent
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Abstract
Apparatus responsive to leaks occurring in a heat exchanger between a first tubular passageway which transports a heat transfer fluid at a relatively low pressure and a surrounding concentrically second tubular passageway which transports a refrigerant at a relatively higher pressure and including a sensor positioned to respond to the occurrence of a leak permitting the refrigerant to pass into the first passageway, a relay which is actuated by the sensor upon detection of a leak, and a plurality of valves which may be selectively actuated to interrupt the flow of either or both fluids through the heat exchanger.
Claims19
Apparatus responsive to leaks occurring in a heat exchanger between a first tubular passageway which transports a heat transfer fluid at a relatively lower pressure and a second surrounding concentrically tubular passageway which transports a refrigerant gas at a relatively higher pressure comprising:
- sensor means responsive to a change in a parameter of only the heat transfer fluid in said first passageway indicative of a leak between said first and second tubular passageways;
- and means actuated by said sensor means for interrupting flow through at least one said first and second passageways to prevent the further leakage of refrigerant gas into the heat transfer fluid;
- said means actuated by said sensor means being manually resettable to a normal condition providing fluid flow through said first and second tubular passageways within said heat exchanger.
Dependencies are inferred from the claim text.