Gustaf Dalén

of Nile Gustaf Dalén

of Nile Gustaf Dalén (* 30. November 1869 in Stenstorp; † 9. December 1937 in Lidingö (Stockholm län)) was a Swedish engineer. It received the Nobelpreis for physics to 1912for itsInvention of working modulators, which are used in combination with gas accumulators for the lighting of lighthouses and Leuchtbojen “.

life and work

of Nile Gustaf Dalén became 1869 in Stenstorp, in the municipality Falköping, as the third of five childrenthe farmer differently Johansson and his Mrs. Lovisa Dahlén born. Its brother Albin became later a well-known optician and professor at the Karolinska Institutet.

Daléns invention wealth showed up already in recent years, as it on the yard of its father one Threshing machine designed, which was propelled by an old spin wheel. In addition it developed equipment, with which the fat content could be determined by milk. By this invention he came into contact with engineer Gustaf de Laval.

De Laval was impressed of the talent of the young Dalén and of it, non convinced it as originally planned - dairy farming at the Landwirtschaftsschule to study to complete but a technical training. Dalén applied at the technical university Chalmers in Göteborg and became1892 accepted. 1896 it successfully locked its training as engineer and studied afterwards one year mechanical engineering at the polytechnic institute Zurich (today Swiss federal technical university Zurich). To its professors among other things Aurel Stodola belonged.

After its return after GöteborgDalén dedicated itself a time long to the research: It designed different compressors and pumps, invented an apparatus for pasteurization as well as a milking machine, before it 1901 the technical line of the Svenska carbide och acetylene A.B.took over. Later it changedto the Aktiebolaget gas Accumulator (AGA), where it became 1906 chief engineer. The company had briefly before acquired the patent for the production of solved Ethin. Dalén used this invention for the construction of a new, automatic lighting installation for lighthouses ( the Dalén signal light) as well as toManufacturing of new gas tanks: It filled the containers with a mixture from asbestos and Kieselgur and took to the Ethin thereby its explosive characteristics, which had prevented up to then an employment of the material to the enterprise of lighthouses.

In addition Dalén invented a sun valve,which ignited the lighthouse automatically with break-down of the darkness and deleted it from the morning. AGA lighthouses could be operated thereby for long time up to one year - without personnel and without maintenance, and did not only carry thereby for improvement, but help security in the navigation at of Sweden long coasts also to large personnel and material savings.

1909 took over Dalén the line of the AGA.

With a test of the security of Ethin containers Dalén became 1912 by an unexpected explosionheavily and lost thereby its eyesight hurts. After he had recovered from his injuries, he continued his research and received among other things the order to equip the Panama channel with lighthouses.

Later it was concerned with the improvement of the heating techniqueand invented 1922 a stove, which with only eight Pound coal could heat up to 24 hours. The AGA stove became also beyond the borders of Sweden a large success and belonged into the 1930er year in certain social classesEngland (with the owners of middle and larger country houses) practically to the Standardausstattung.

With his Mrs. Elma Persson, which had married Dalén 1901, it had two sons and two daughters. Its oldest son, Gunnar, became an engineer and took over later the line thatAGA of its father; the younger son, differently, became a physician.

Dalén died 1937 at the age of 68 years in its mansion in Lidingö. Today a high lighthouse at the coast of then the one country carries 26 m for it in honours its names.


Dalén received 1912 to the Nobelpreis for physics “for his invention of working modulators, which are used in combination with gas accumulators for the lighting of lighthouses and Leuchtbojen “. The assignment of the price for a technicalInvention was a large exception and is today very unusual until. Since Dalén kept the honor short after its going blind, until today over the motive of this honour one mind-measures: Possibly the Juroren left themselves with the selection of the winner oftheir sympathy lead.

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