Thermostatic expansion valve for circuits with cooling, optionally heat pump with thermally controlled safety function

摘要

thermostatic expansion valve for regulating the high pressure as transkriticky, and podkriticky provozovatelnu00e9ho circuit (11) with a cooling popru00edpade heat cerpadlem,with ventilovu00fdm casing (26), which are in pru00edvodnu00edm entry aperture (27) high pressure and whose output is in odvu00e1decu00edm orifice (31) of the low pressure, with ventilovu00fdm element (33).which the valve seat (32) pruchozu00edho orifice (29), which is usporu00e1du00e1n between pru00edvodnu00edm hole (27) and odvu00e1decu00edm hole (31).for the opening of the middle of the closing and moving in the direction otevu00edru00e1nu00eda is prirazen first stavecu00edmu members (36).while the first stavecu00ed member (36) includes a first effective area (37) reduced chamber (38), which contains regulatory cartridge (41).thermostatic expansion valve contains high pressure independent triple adjustable stavecu00ed member (46).the stavecu00ed movement is pohybove sprau017een with the first effective area (37) of the first stavecu00edho members (36).when is on the temperature dependent stavecu00ed triple adjustable movement stavecu00edho members (46) against stavecu00edmu movement the first effective area (37) of the first stavecu00edho members (36).while the value of temperature of stavecu00edho triple adjustable members (46) for stavecu00ed movement is set to the same value as the mot (maximum operationtemperature) regulatory nu00e1plne (41) of the first st.avecu00edho members (36), which has a density of naplnenu00ed which lies on the critical density.