Heat flow device

Abstract

A device comprises equipment ( 501 ) with a heat source having a maximum thermal operation condition, a cold part ( 502 ) relative to the equipment and an element ( 503 ) capable of transmitting the heat from the equipment to the cold part. The element ( 503 ) is capable of causing the transmitted heat to be limited for thermal conditions above a specified threshold below said maximum condition.

1 . A device comprising an equipment item containing a heat source having a maximum thermal operating condition, a part relatively colder than the equipment item and a member capable of transmitting the heat from the equipment item to the cold part,
 characterized in that the member is capable of causing a limitation on the transmitted heat under thermal conditions that exceed a defined threshold below the said maximum condition.   
     
     
         2 . A device according to  claim 1 , wherein the thermal conditions correspond to a thermal power transmitted across the member. 
     
     
         3 . A device according to  claim 2 , wherein the member is capable of limiting the transmitted thermal power to the value of the said defined threshold. 
     
     
         4 . A device according to one of  claims 1  to  3 , wherein the equipment item and the cold part are separated substantially by a gas screen, at least under the said thermal conditions. 
     
     
         5 . A device according to  claim 4 , wherein the equipment item and the cold part are separated by the said screen regardless of the thermal conditions, and wherein the member comprises at least one heat pipe passing through the said screen. 
     
     
         6 . A device according to one of  claims 1  to  5 , wherein the equipment item is a fuel pump. 
     
     
         7 . A device according to one of  claims 1  to  6 , wherein the cold part is a liquid fuel. 
     
     
         8 . A device according to one of  claims 1  to  6 , wherein the cold part is a member that is sensitive to temperature elevations. 
     
     
         9 . An aircraft equipped with a device according to any one of  claims 1  to  8 .