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Ercole Marelli (
Milan Milan ( , , Lombard: ; it, Milano ) is a city in northern Italy, capital of Lombardy, and the second-most populous city proper in Italy after Rome. The city proper has a population of about 1.4 million, while its metropolitan city h ...
, 19 May 1867 -
Tremezzina Tremezzina (Comasco: ) is a ''comune'' in the province of Como, in Lombardy, that formed on 25 May 2014 from a merger of the comunes of Lenno, Mezzegra, Ossuccio and Tremezzo. A referendum to create this comune was held on 1 December 2013. The r ...
, 28 August 1922 ) was an
Italian Italian(s) may refer to: * Anything of, from, or related to the people of Italy over the centuries ** Italians, an ethnic group or simply a citizen of the Italian Republic or Italian Kingdom ** Italian language, a Romance language *** Regional Ita ...
engineer and entrepreneur.


Biography

Marelli was born in
Milan Milan ( , , Lombard: ; it, Milano ) is a city in northern Italy, capital of Lombardy, and the second-most populous city proper in Italy after Rome. The city proper has a population of about 1.4 million, while its metropolitan city h ...
on May 19, 1867, the son of a craftsman from the
Como Como (, ; lmo, Còmm, label=Comasco dialect, Comasco , or ; lat, Novum Comum; rm, Com; french: Côme) is a city and ''comune'' in Lombardy, Italy. It is the administrative capital of the Province of Como. Its proximity to Lake Como and ...
area. At fifteen he began working as an apprentice at a mechanical workshop. In 1885 he was presented to Bartolomeo Cabella, director of the Italian Brown Boveri Tecnomasio and hired as a mechanic for measuring instruments and for electrical work applied to lighting. In October 1888 he went to
Asunción Asunción (, , , Guarani: Paraguay) is the capital and the largest city of Paraguay. The city stands on the eastern bank of the Paraguay River, almost at the confluence of this river with the Pilcomayo River. The Paraguay River and the Bay of ...
in
Paraguay Paraguay (; ), officially the Republic of Paraguay ( es, República del Paraguay, links=no; gn, Tavakuairetã Paraguái, links=si), is a landlocked country in South America. It is bordered by Argentina to the south and southwest, Brazil to th ...
, just twenty years old, where he assembled and operated an electrical system for the Concha Sociedad plant.


Foundation of Ercole Marelli

In 1891, when he returned to Italy, he founded a modest workshop of electrical appliances in the centre of Milan, assisted by a worker; they manufactured apparatus of physics and geodesy, electric machines for school toilets, batteries, accumulators and electro-medical devices. From 1898 it also began to trade AC motors.


Sesto San Giovanni plant

On 28 February 1900 it became a limited partnership. In December 1905 it opened a plant in
Sesto San Giovanni Sesto San Giovanni (; lmo, Sest San Giovann, label=Western Lombard ), locally referred to as just Sesto ( lmo, Sest, links=no), is a ''comune'' in the Metropolitan City of Milan, Lombardy, northern Italy. Its railway station is the northernmost s ...
, producing small electric motors,
centrifugal pump Centrifugal pumps are used to transport fluids by the conversion of rotational kinetic energy to the hydrodynamic energy of the fluid flow. The rotational energy typically comes from an engine or electric motor. They are a sub-class of dynamic ...
s and
transformer A transformer is a passive component that transfers electrical energy from one electrical circuit to another circuit, or multiple circuits. A varying current in any coil of the transformer produces a varying magnetic flux in the transformer' ...
s.


Patents for magnetos

In 1915, the "Società Anonima Ercole Marelli" started the first Italian experiments in the field of
magneto A magneto is an electrical generator that uses permanent magnets to produce periodic pulses of alternating current. Unlike a dynamo, a magneto does not contain a commutator to produce direct current. It is categorized as a form of alternator, ...
s for
petrol engine A petrol engine (gasoline engine in American English) is an internal combustion engine designed to run on petrol (gasoline). Petrol engines can often be adapted to also run on fuels such as liquefied petroleum gas and ethanol blends (such as ''E ...
s. In 1916, Ercole Marelli registered the first patent related to magnetos, perfecting the innovation in 1917, and then again with a "complete" patent towards the end of 1918.


Foundation of Magneti Marelli

In 1919 by Ercole Marelli he broke off a production department of automobile magnetos, which later became in turn the company
Magneti Marelli Magneti Marelli S.p.A. () is an Italian developer and manufacturer of components for the automotive industry. The firm is headquartered in Corbetta, Italy, and includes 86 manufacturing plants, 12 R&D centres, and 26 application centers in 19 c ...
. The joint venture established equal shares of capital, giving the presidency and the technical management, as well as the commercial one to Marelli. The ownership was then entrusted to the husband of his daughter, Bruno Antonio Quintavalle, who remained until 1967. In that year the entire stock package passed to Fiat and his brother Umberto Quintavalle.


Archive

The documentation produced by Ercole Marelli during his entrepreneurial activity is conserved in part at the ISEC Foundation of Sesto San Giovanni, in the Ercole Marelli Fund (chronological details: 1896–1986), and partly at the Magneti Marelli Historical Archives (chronological details: 1919–2000). The latter collects an extremely important documentary heritage for the history of industry in the fields of motor vehicles, telecommunications, radio and television, produced by the company in over ninety years of activity. The mission of the Historical Archive consists in collecting, conserving and enhancing the historical memory of Magneti Marelli and the brands that make it up, among which Weber and Solex, Veglia Borletti and Jaeger, Carello and Siem stand out. The preserved historical material covers an era that goes from the end of the 19th century to 2000 and is made up of a sector related to image and communication, with about 20,000 images, 500 films and over 2000 pieces among business magazines, brochures, advertisements and press reviews; a technical sector with over 1000 product catalogs, manuals and technical drawings; reports and company balance sheets.


References

{{DEFAULTSORT:Marelli, Ercole 1867 births 1922 deaths Engineers from Milan