Ivan Polzunov
Encyclopedia
Ivan Ivanovich Polzunov ( 1728 - May 27, 1766 n.s.) was a Russia
Russia
Russia or , officially known as both Russia and the Russian Federation , is a country in northern Eurasia. It is a federal semi-presidential republic, comprising 83 federal subjects...

n inventor. He is credited with creation of the first steam engine
Steam engine
A steam engine is a heat engine that performs mechanical work using steam as its working fluid.Steam engines are external combustion engines, where the working fluid is separate from the combustion products. Non-combustion heat sources such as solar power, nuclear power or geothermal energy may be...

 in Russia
Russia
Russia or , officially known as both Russia and the Russian Federation , is a country in northern Eurasia. It is a federal semi-presidential republic, comprising 83 federal subjects...

 and the first two-cylinder engine in the world.

A minor planet
Minor planet
An asteroid group or minor-planet group is a population of minor planets that have a share broadly similar orbits. Members are generally unrelated to each other, unlike in an asteroid family, which often results from the break-up of a single asteroid...

, 1978SP7 is named in his honor, as well as a crater on the Moon
Moon
The Moon is Earth's only known natural satellite,There are a number of near-Earth asteroids including 3753 Cruithne that are co-orbital with Earth: their orbits bring them close to Earth for periods of time but then alter in the long term . These are quasi-satellites and not true moons. For more...

.

Biography

Ivan Polzunov was born in the family of a soldier of peasant origin in the town Turinsk
Turinsk
Turinsk is a town and the administrative center of Turinsky District of Sverdlovsk Oblast, Russia, located on the right bank of the Tura River midway between Verkhoturye and Tyumen, near its confluence with the Yarlynka, northeast of Yekaterinburg...

 (currently Sverdlovsk Oblast
Sverdlovsk Oblast
Sverdlovsk Oblast is a federal subject of Russia located in the Urals Federal District. Its administrative center is the city of Yekaterinburg formerly known as Sverdlovsk. Population: -Geography:...

 region, Russia). After graduating in 1742 from Mining school (Горнозаводская Школа) in Ekaterinburg he worked as a mechanic's apprentice for the Chief Mechanic of Ural Plants Nikolay Bakharev. Beginning in 1748 he worked in Barnaul
Barnaul
-Russian Empire:Barnaul was one of the earlier cities established in Siberia. Originally chosen for its proximity to the mineral-rich Altai Mountains and its location on a major river, the site was founded by the wealthy Demidov family in the 1730s. In addition to the copper which had originally...

.

In the library of Barnaul plant he found works of Mikhail Lomonosov
Mikhail Lomonosov
Mikhail Vasilyevich Lomonosov was a Russian polymath, scientist and writer, who made important contributions to literature, education, and science. Among his discoveries was the atmosphere of Venus. His spheres of science were natural science, chemistry, physics, mineralogy, history, art,...

, that he studied by himself as well as the descriptions of contemporary steam machines by I. Shlatter. In 1763 he proposed an original 1.8 h.p.
Horsepower
Horsepower is the name of several units of measurement of power. The most common definitions equal between 735.5 and 750 watts.Horsepower was originally defined to compare the output of steam engines with the power of draft horses in continuous operation. The unit was widely adopted to measure the...

 (1.2kW
Kw
kw or KW may refer to:* Kuwait, ISO 3166-1 country code** .kw, the country code top level domain for Kuwait* Kilowatt* Self-ionization of water Kw* Cornish language's ISO 639 code* Kitchener–Waterloo, Ontario, Canada...

) steam machine. The design used two cylinders on the same shaft that allowed its operations completely independently from water power even on dry places or in mountains. This design was a great step forward from contemporary steam machines that used hydropower to return the pistons and so could not be used if the hydropower was not available.

The project was sent to Empress Catherine II
Catherine II of Russia
Catherine II, also known as Catherine the Great , Empress of Russia, was born in Stettin, Pomerania, Prussia on as Sophie Friederike Auguste von Anhalt-Zerbst-Dornburg...

. She awarded him 400 rubles and promotion two ranks (to captain-poruchik
Poruchik
Poruchik was a military rank in several Slavic countries, such as the Russian Empire and the Republic of Poland, equivalent to Lieutenant. "Poruchik" means "messenger", "officer for orders". This is a Slavic copy of the term "Lieutenant" .In Russia this rank was first introduced in Strelets New...

) but did not seem to appreciate the new technology, as she recommended hydropower be used to return the pistons as done in Britain.

In 1765 Polzunov designed a large 32 h.p. steam machine for air pump
Blowing engine
A blowing engine is a large stationary steam engine directly coupled to air pumping cylinders. They deliver a very large quantity of air at a pressure lower than an air compressor, but greater than a centrifugal fan....

s for steel furnaces. The director of Barnaul plants general Porshin agreed to use Polzunov's two-cylinder design as Barnaul steel mills were in a very dry area and in summer they often did not have any hydropower at all.

The machine was assembled in the winter and spring of 1766; the machine hall had very thin walls and a lot of draughts. Ivan Polzunov's tuberculosis
Tuberculosis
Tuberculosis, MTB, or TB is a common, and in many cases lethal, infectious disease caused by various strains of mycobacteria, usually Mycobacterium tuberculosis. Tuberculosis usually attacks the lungs but can also affect other parts of the body...

 became much worse, he coughed blood but still worked. He died on May 27, 1766 at the age of 37, three days before the machine was finished. The machine worked three months, then was disassembled and replaced by convenient hydropower, despite paying off its costs in those three months. A working model of the steam machine made by Ivan Polzunov is in the museum of Barnaul
Barnaul
-Russian Empire:Barnaul was one of the earlier cities established in Siberia. Originally chosen for its proximity to the mineral-rich Altai Mountains and its location on a major river, the site was founded by the wealthy Demidov family in the 1730s. In addition to the copper which had originally...

and it still works.

External links

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