CAPILLARY PUMP-EVAPORATOR Russian patent published in 1998 - IPC

FIELD: two-phase heat-transfer devices - loop thermal tubes and loops with capillary pumps. SUBSTANCE: capillary pump-evaporator has housing 1 with capillary porous checker 2 faying to its inner surface; checker has central passage 3 and longitudinal steam escape bores 4 forming the communicating steam phase escape system together with azimuth steam escape grooves 5 provided on inner surface of housing 1; steam phase of heat-transfer agent is evacuated into steam header 6; it consists of sections connected in series. Housing of each section is hermetically connected with housing of subsequent section by means of butt joint. Sections of capillary porous checker 2 are provided with circular bores 7 on ends to be connected; these bores are open to inner surface of housing 1 and are brought in communication with longitudinal steam escape bores 4; amount of clearance at joint of sections of capillary porous checker 2 does not exceed size of its pores. Capillary pump-evaporator may be provided with additional steam heaters 8 distributed lengthwise. EFFECT: manufacture of capillary pump-evaporator with any length of its active portion with no impairment of its efficiency. 2 cl, 5 dwg