Jonas Hesselman (9 April 1877- 20 December 1957) was a Swedish engineer. He built the first spark ignition engine with direct injection of fuel into the cylinder. [1]
Jonas Hesselman (9 April 1877- 20 December 1957) was a Swedish engineer. He built the first spark ignition engine with direct injection of fuel into the cylinder. [1]
Knut Jonas Elias Hesselman was born at Å församling in Östergötland, Sweden. He was the son of factory owner Bror August Hesselman and Marie Louise Hesselman, née Åberg. He was the brother of professor Henrik Hesselman (1874–1943) and linguist Bengt Hesselman (1875–1952). [2] [3] [4]
Hesselman graduated in 1899 from KTH Royal Institute of Technology, Department of Mechanics. He worked from 1899 to 1916 for AB Diesel Engines (later Atlas Diesel, now Atlas Copco) in Sickla in Nacka just outside Stockholm, from 1901 as Head of Construction. Here he also developed Rudolf Diesel's engine further and won international recognition as an authority on diesel engines. In 1916 he opened his own factory and in 1925 presented the Hesselman engine, a hybrid between an Otto engine and diesel engine. [5]
Jonas Hesselman also designed electrical vehicle components, among others, the motor that became the basis for Hesselman Elhydraulik, now Haldex AB. In 1970, Hesselman Elhydraulik developed the hydraulic power unit that still serves as the prototype for the existing lifts for trucks. [6]
Jonas Hesselman was a resident of "Villa Hesselman" at Storängen outside Stockholm. The villa was designed in 1906 by architect Albin Brag (1878-1937). He lived here until his death in 1957.
Bengt Jönsson (Oxenstierna), (1390s–1450s) Swedish statesman and noble. Under the Kalmar Union, he served as co-regent of Sweden, from January to June 1448, together with his brother Nils Jönsson (Oxenstierna). Member of the Privy Council of Sweden from 1435, and magistrate of Uppland in 1439. Dubbed as knight by King Christopher of Bavaria following his coronation in 1441, and Master of the Royal Court from the same year.
Oxenstierna is a Swedish noble family, originally from Småland in southern Sweden which can be traced up to the middle of the 14th century. The Oxenstierna family held vast estates in Södermanland and Uppland during the late Middle Ages and Renaissance. In the 15th century, the family at times held the position of Regent of Sweden during the turbulent civil wars of the Kalmar Union. The family began to adopt its armorial designation of Oxenstierna as a personal surname towards the end of the 16th century. In the case of earlier members of the family, the surname has been retroactively applied by historians.
The Governor of Stockholm was the head of the Office of the Governor of Stockholm, and as such he was the highest Swedish State official overseeing the affairs in the City of Stockholm between 1634 and 1967. The Governor was the equivalent in Stockholm of a county governor elsewhere in Sweden.
Carl Johan Schönherr was a Swedish entomologist who revised the taxonomy of beetles, including weevils.
The Swedish Theatre in Stockholm was, at the beginning of the 20th century, Sweden's largest dramatic theatre. It was located on Blasieholmen in central Stockholm. During its years in use, from 1875 to 1925, it was often considered as Sweden's foremost national theatre ).
Carl Eneas Sjöstrand was a Swedish sculptor who worked for over 40 years in the Grand Duchy of Finland.
Henrik Hesselman was a Swedish professor, foresters, and botanist.
Hans Olof Hildebrand Hildebrand was a Swedish archeologist. He is internationally known as one of the pioneers of the archaeological technique of typology.
Haldex AB, also known as Haldex Group, is a Swedish public company operating in the commercial vehicle industry. It is listed on the OMX Stockholm Stock Exchange, and has an annual turnover of around 4.4 bn SEK.
The Hesselman engine is a hybrid between a petrol engine and a Diesel engine. It was designed and introduced in 1925 by Swedish engineer Jonas Hesselman (1877-1957). It represented the first use of direct gasoline injection on a spark-ignition engine used to power a road going vehicle. Hesselman engines saw use in heavy trucks and buses in models produced in the 1920s and 1930s.
Christina Charlotta Cederström née Mörner af Morlanda was a Swedish dilettante artist, composer, salon hostess, and baroness.
Nils Håkansson was a late medieval Swedish painter from Vadstena.
Ellen Fries was a Swedish feminist and writer. She became the first female Ph.D. in Sweden in 1883. She was also involved in founding several women's organizations.
Carl Richard Nyberg was a Swedish inventor and industrialist. Nyberg was a pioneer in mechanical engineering. He received a patent for a blow lamp and was an aviation pioneer.
Events from the year 1874 in Sweden
Birger Ljungström was a Swedish engineer, technical designer, industrialist, and inventor.
Henrik Axel Kulle was a Swedish painter who specialized in genre scenes.
Bengt Ivar Hesselman (1875–1952) was a Swedish linguist and philologist, specialising in Scandinavian languages.
Ludvig Oskar Josephson was a Swedish dramatist, actor and theatre manager.
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