Jonas Hesselman
Knut Jonas Elias Hesselman (born April 9, 1877 in Å församling , Östergötland , † December 20, 1957 in Nacka ) was a Swedish engineer who invented numerous improvements for the diesel engine .
history
Jonas Hesselman began his career at AB Diesel Motorer (later Atlas Diesel and Atlas Copco ) founded by Marcus Wallenberg in 1898 , which manufactured diesel engines under German license.
After a short time, Hesselmann became the design manager. During his time at Diesel Motorer (1899-1916) he made numerous inventions, such as the reversible diesel engine (1904), which enabled the direction of rotation of the engine to be changed. This was an important prerequisite for use in ships that have to go forwards and backwards. From 1903 Diesel Motorer produced the world's first marine diesel engines for the 820 t river tanker from Branobel Vandal . Due to the lack of reversal, the drive systems were designed to be diesel-electric.
Inventions
In 1908, Hesselman patented a new type of injection nozzle . Further improvements followed in 1913.
In 1909, the Benz works acquired the license for the reversing procedure for two-stroke marine diesel engines from Hesselman. On the research ship Fram , built in 1892, the steam engine for Amundsen's South Pole expedition was replaced by such a diesel engine.
After AB Diesel's Motorer merged with Atlas in 1917 to form Nya AB Atlas, Hesselman left the company and opened his own design office. In 1920 he patented a multi-fuel engine with direct injection and spark ignition using spark plugs. In 1925 he presented the Hesselman engine based on it, which could be operated with both gasoline and diesel.
In collaboration with AEG, he further developed the low-speed two-stroke diesel engines built under license from Burmeister and Wain as ship propulsion systems. These double-acting large diesel engines, known as AEG-Hesselmann machines, were equipped with its patented injection nozzles for direct injection and the previously necessary air compressor for air injection was no longer required.
To market the patents and inventions he founded the company "Hesselman Motor Corporation AB". In 1941, Hesselman sold his shares in Hesselman Motor Corporation and retired.
Individual evidence
- ↑ a b Automotive Engineer : Jonas Hesselman developed gasoline direct injection to help improve his dual-fuel engine ( Memento of the original from July 5, 2015 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. , July 29, 2011
- ↑ Patent US910534 : Vaporizer for internal-combustion engines. Registered July 1, 1908 , published January 26, 1909 , inventor: Knut Jonas Elias Hesselman.
- ↑ Patent US1117845 : Vaporizer for internal-combustion engines. Published on November 17, 1914 , inventor: Knut Jonas Elias Hesselman.
- ↑ Benz: First two-stroke marine diesel from our own company
- ↑ MAN Nutzfahrzeuge AG: Performance and route: On the history of MAN commercial vehicle construction . Springer-Verlag, 1991, ISBN 978-3-642-93490-2 ( Google Books ).
- ↑ Yearbook of the Shipbuilding Society; Volume 61 - page 483
- ↑ [1] Abiildungen to AEG-machine Hesselman
- ^ [2] Hesselman Motor Corporation AB
| personal data | |
|---|---|
| SURNAME | Hesselman, Jonas |
| ALTERNATIVE NAMES | Hesselman, Knut Jonas Elias (full name) |
| BRIEF DESCRIPTION | Swedish engineer |
| DATE OF BIRTH | April 9, 1877 |
| PLACE OF BIRTH | Å församling , Östergötland County |
| DATE OF DEATH | December 20, 1957 |
| Place of death | Nacka |