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| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 3-stage air-cooled | | | | | | | | | | At the beginning of the 70ies, Sauer & Sohn developed the 3-stage air-cooled compressor in collaboration with wellknown German shipping companies in order to cover the increasing demand for low-maintenance auxiliary machines used in international shipping - a branch which suffered considerable pressure of costs. Due to the 3-stage air-principle, general advantages of the air-cooled system could also be used for bigger compressor capacities. In addition, the division of the pressure ratio into 3 stages - instead of 2 stages as in traditionally used water-cooled compressors - considerably decreases compression temperatures. | | | | | | | | | | The consequence: Even when standard mineral oil is used, as e. g. circulating oil in main engines, any carbonization of compressor valves belongs to the past. If you require references, please do not hesitate to contact us! | | | | | | 2-stage water-cooled | | 3-stage air-cooled | | | | | | | | | | 1. stage 2.3 bar 2. stage 8.9 bar | | | | | | 300 | | | | | | | | | | Thermal cracking of synthetic oils | | | | | | 1. stage 4.5 bar 2. stage 30 bar | | | | | | | | | | | | | | 250 | | | | | | | | | | | | | | Thermal | | | | | | | | | | | | | | 100 | | | | | | | | | | | | | | | 4532 | | -Tooling water ^emperatur;' (freshwater) { | | | | | | | | | | maximum cooling air temperature in engine room | | | | | | | | | | | | | | compression | | | | | | Temperature rise of air during compression | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | pretUre | Stages | Cylinder | | Technical Data for a final pressure of 30 bar äp™ conation DisJlion | Weight kg | Length | Dimensio Wideh | ns Height mm | | | | WP81 L | 45 | 3 | 3 | 1170 1470 1770 | 100,0 | 13 15 18 | 20,9 | 415 | 1345 | 945 | 900 | | | | WP101 L | 45 | 3 | 3 | 1170 1470 1770 | 121,0 | 16 20 24 | 220 26,4 | 430 | 1385 | 945 | 900 | | | | WP121 L | 45 | 3 | 3 | 1170 1470 1770 | SOS 150,0 | 19 24 30 | 26,4 33,0 | 655 | 1565 | 925 | 955 | | | | WP151 L | 45 | 3 | 3 | 11147700 1770 | 180,0 | 23 30 38 | 33,0 41,7 | 700 | 1575 | 925 | 955 | | | | WP271 L | 45 | 3 | 4 | 1170 1470 1770 | 230S 275,0 | 33 41 49 | 3465,,00 54,0 | 900 | 1765 | 1068 | 1077 | | | | WP311 L | 45 | 3 | 4 | 11147700 1770 | 360,0 | 38 50 63 | 4525,,00 5657,,00 | 960 | 1865 | 1068 | 1077 | | | | | | | | | | | | | | | | | | | | | | | | | | | Performance data with 5 % tolerance, referred to 20° C and an air pressure of 1013 mbar. Charging Capacity according to ship building regulations. Performance data on final pressure deviating from 30 bar upon request. Weights and dimensions for standard units with three-phase A. C. motor, IP 54, and flexible mounting. | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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