Dobrivoje Božić: Difference between revisions
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'''Dobrivoje Božić''' (December 23, 1885 – November 13, 1967) was a [[Serbs|Serbian]] [[mechanical engineer]], [[inventor]] and constructor of the first [[Railway air brake|modern brakes for trains]]. |
'''Dobrivoje Božić''' (December 23, 1885 – November 13, 1967) was a [[Serbs|Serbian]] [[mechanical engineer]], [[inventor]] and constructor of the first [[Railway air brake|modern brakes for trains]].He was a greatman |
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Dobrivoje Božić was born in [[Raška, Serbia|Raška]] in [[Kingdom of Serbia]]. He studied in [[Germany]] at the Technical University of [[Karlsruhe]] and [[Dresden]]. While at Karlsruhe, he was student of [[Rudolf Diesel]], the famous designer of [[diesel engines]]. After graduation in 1911, Božić returned to Serbia. |
Dobrivoje Božić was born in [[Raška, Serbia|Raška]] in [[Kingdom of Serbia]]. He studied in [[Germany]] at the Technical University of [[Karlsruhe]] and [[Dresden]]. While at Karlsruhe, he was student of [[Rudolf Diesel]], the famous designer of [[diesel engines]]. After graduation in 1911, Božić returned to Serbia. |
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Dobrivoje Božić (December 23, 1885 – November 13, 1967) was a Serbian mechanical engineer, inventor and constructor of the first modern brakes for trains.He was a greatman
Dobrivoje Božić was born in Raška in Kingdom of Serbia. He studied in Germany at the Technical University of Karlsruhe and Dresden. While at Karlsruhe, he was student of Rudolf Diesel, the famous designer of diesel engines. After graduation in 1911, Božić returned to Serbia.
His engineering work began immediately upon his return to the railway workshop in Niš, where he simultaneously started his research in the field of braking railway vehicles. Božić learnt that the brake system in use in rail vehicles then were one of the most problematic parts of vehicle development, due to their increasing speed and capacity. In 1869, George Westinghouse designed a brake on compressed air with direct action and improved it in 1872 as a single chamber, automatic brake with indirect effects. Božić's research was interrupted during the First World War. After the end of the war, he continued his work in Kraljevo, Belgrade and Zagreb. He applied to the International Union of Railways for a patent for the Božić brake through the Yugoslav railway in 1925. His patent was finally approved in 1928.
Božić's invention was resolved by then unsolvable problems in braking trains such as solutions distributor (main braking device) with three working pressures, increasing air velocity stab in the main air pipe (along the train) from 80 to 150 m/s, solution to the problem of gradual release brake train, the solution of non-exhaustion brakes of train during braking, solution overfull working chamber, solution to the problem of automatic change brake force depending on load rail vehicles. First proposed by braking of passenger trains in function of speed (brakes with two working pressure). He also constructed efficient brake controller for locomotives.
After World War II he lived and worked in the USA. In 1964, he went to Belgrade, where he died in 1967.
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