Warning: Constant Data already defined in /home/encicl/public_html/w/LocalSettings.php on line 259

Warning: Constant Discuţie Data already defined in /home/encicl/public_html/w/LocalSettings.php on line 260

Warning: session_name(): Session name cannot be changed after headers have already been sent in /home/encicl/public_html/w/includes/Setup.php on line 531

Deprecated: Creation of dynamic property LoadBalancer::$mWriteIndex is deprecated in /home/encicl/public_html/w/includes/db/LoadBalancer.php on line 65

Deprecated: Return type of ResultWrapper::current() should either be compatible with Iterator::current(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/encicl/public_html/w/includes/db/DatabaseUtility.php on line 197

Deprecated: Return type of ResultWrapper::next() should either be compatible with Iterator::next(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/encicl/public_html/w/includes/db/DatabaseUtility.php on line 215

Deprecated: Return type of ResultWrapper::key() should either be compatible with Iterator::key(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/encicl/public_html/w/includes/db/DatabaseUtility.php on line 208

Deprecated: Return type of ResultWrapper::valid() should either be compatible with Iterator::valid(): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/encicl/public_html/w/includes/db/DatabaseUtility.php on line 225

Deprecated: Return type of ResultWrapper::rewind() should either be compatible with Iterator::rewind(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/encicl/public_html/w/includes/db/DatabaseUtility.php on line 186

Deprecated: Return type of ExplodeIterator::current() should either be compatible with Iterator::current(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/encicl/public_html/w/includes/utils/StringUtils.php on line 576

Deprecated: Return type of ExplodeIterator::next() should either be compatible with Iterator::next(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/encicl/public_html/w/includes/utils/StringUtils.php on line 590

Deprecated: Return type of ExplodeIterator::key() should either be compatible with Iterator::key(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/encicl/public_html/w/includes/utils/StringUtils.php on line 583

Deprecated: Return type of ExplodeIterator::valid() should either be compatible with Iterator::valid(): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/encicl/public_html/w/includes/utils/StringUtils.php on line 609

Deprecated: Return type of ExplodeIterator::rewind() should either be compatible with Iterator::rewind(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/encicl/public_html/w/includes/utils/StringUtils.php on line 558

Deprecated: Creation of dynamic property Revision::$mTextId is deprecated in /home/encicl/public_html/w/includes/Revision.php on line 536

Deprecated: Creation of dynamic property Revision::$mUnpatrolled is deprecated in /home/encicl/public_html/w/includes/Revision.php on line 696

Deprecated: Creation of dynamic property WikitextContentHandler::$mModelName is deprecated in /home/encicl/public_html/w/includes/content/ContentHandler.php on line 416

Deprecated: Creation of dynamic property RequestContext::$recursion is deprecated in /home/encicl/public_html/w/includes/context/RequestContext.php on line 328

Deprecated: header(): Passing null to parameter #3 ($response_code) of type int is deprecated in /home/encicl/public_html/w/includes/WebResponse.php on line 37

Warning: Cannot modify header information - headers already sent by (output started at /home/encicl/public_html/w/LocalSettings.php:259) in /home/encicl/public_html/w/includes/WebResponse.php on line 37

Deprecated: header(): Passing null to parameter #3 ($response_code) of type int is deprecated in /home/encicl/public_html/w/includes/WebResponse.php on line 37

Warning: Cannot modify header information - headers already sent by (output started at /home/encicl/public_html/w/LocalSettings.php:259) in /home/encicl/public_html/w/includes/WebResponse.php on line 37

Deprecated: header(): Passing null to parameter #3 ($response_code) of type int is deprecated in /home/encicl/public_html/w/includes/WebResponse.php on line 37

Warning: Cannot modify header information - headers already sent by (output started at /home/encicl/public_html/w/LocalSettings.php:259) in /home/encicl/public_html/w/includes/WebResponse.php on line 37

Deprecated: header(): Passing null to parameter #3 ($response_code) of type int is deprecated in /home/encicl/public_html/w/includes/WebResponse.php on line 37

Warning: Cannot modify header information - headers already sent by (output started at /home/encicl/public_html/w/LocalSettings.php:259) in /home/encicl/public_html/w/includes/WebResponse.php on line 37

Warning: Cannot modify header information - headers already sent by (output started at /home/encicl/public_html/w/LocalSettings.php:259) in /home/encicl/public_html/w/includes/cache/HTMLFileCache.php on line 138

Warning: Cannot modify header information - headers already sent by (output started at /home/encicl/public_html/w/LocalSettings.php:259) in /home/encicl/public_html/w/includes/cache/HTMLFileCache.php on line 139
Teodor Dragu - Enciclopedia României - prima enciclopedie online despre România

Teodor Dragu

de la Enciclopedia României

Salt la: navigare, căutare
Teodor Dragu
Replace this image male.png
Născut 1848, Zăpodeni judeţul Vaslui
Decedat 1925, Bucureşti
Ocupaţie inginer, inventator

Teodor Dragu (n. 1848, Zăpodeni judeţul Vaslui- d. 1925, Bucureşti), inginer şi inventator, întemeietorul ingineriei mecanice în România. A construit mai multe tipuri de locomotive cu abur şi a introdus în 1887 trenurilor din reţeaua feroviară română, sistemul de încălzire a trenurilor cu abur, sistem asemănător cu cel folosit la locomotive. În anul 1892 a introdus trenurilor mecanismul de frânare automată cu aer comprimat, sistem Westinghouse. A iniţiat utilizarea în România a locomotivelor care foloseau combustibil lichid şi a inventat pentru acestea un injector cu păcură pentru focarele cazanelor. Sistemul a fost perfecţionat de englezi după primul război mondial.

Între anii 1863-1971 a studiat la Academia Mihăileană, după care studiază la Paris şi devine în 1876 inginer diplomat al Şcolii centrale de arte şi meserii. După un an de practică în Paris, în 1878 se întoarce în România şi fondează în 1881 Societatea politehnică, al cărei preşedinte va fi între anii 1915-1919. În anul 1886 este şeful serviciului de ateliere şi material rulant al CFR. Între anii 1880-1915 a fost profesor de construcţii de maşini cu abur la Şcoala naţională de poduri şi şosele.

În anul 1892, împreună cu Anghel Saligny, a participat la al IV-lea Congres al drumurilor de fier din St. Petersburg, iar în 1905 la Congresul de la Washington.

Lucrări

  • Locomotivele tender şi locomotivele cu tender deosebit comparate din punct de vedere al aplicaţiunilor lor pe căile secundare, în lărgime normală (1886)
  • Description des installations et des appareils en usage aux chemins de fer de l'etat roumain pour l'emploi des locomotives (Congresul internaţional de petrol, Bucureşti, 1907)

Bibliografie

  • Personalităţi româneşti ale ştiinţelor naturii şi tehnicii, Editura Ştiinţifică şi enciclopedică, Bucureşti, 1982