Improving Automotive Torque Converter Quality

  • N. N. TrushinEmail author
  • V. Y. Antsev
  • A. A. Obozov
Conference paper
Part of the Lecture Notes in Mechanical Engineering book series (LNME)


Hydrodynamic torque converters are commonly used in self-propelled vehicle transmissions. Torque converters are most efficient in trucks, haulers, tractors and other heavy and utility vehicles operating in variable road conditions and off-road. Torque converters can automatically control the engine torque, but their efficiency is lower compared to mechanical gears. Many automotive hydromechanical transmissions use single-stage, four-wheeled torque converters containing two reactor wheels. In such torque converters, two reactor wheels form a single reactor. This design enables to slightly increase the efficiency as compared to a three-wheeled torque converter, but in practice four-wheel torque converter performance is not much different from that of three-wheel torque converters. In order to improve the efficiency of automotive hydromechanical transmissions, the study considers methods for online control of the four-wheel torque converter load capacity. The design of a torque converter with two reactors is proposed, providing for the online reactor switching depending on the vehicle driving conditions. This solution makes it possible to obtain two ranges through a joint operation of the transmission with the vehicle engine.


Self-propelled vehicle Torque converter Quality improving Transparency factor 



The authors thank the personnel of the Research Library at Tula State University and of the Tula Region Research Library for their assistance with the references and patent search, and innovative design development.


  1. 1.
    Kudryavtsev AP (1934) Fundamentals of hydrodynamic energy conversion (turbodrives). LeningradGoogle Scholar
  2. 2.
    Prokof’ev VN (1947) Automotive hydraulic transmission. Mashgiz, MoscowGoogle Scholar
  3. 3.
    Kosenkov AA (2003) Arrangement of automatic gearshifts and transmissions. Fenix, Rostov-on-DonGoogle Scholar
  4. 4.
    Kharitonov SA (2003) Automatic transmissions. Astrel, MoscowGoogle Scholar
  5. 5.
    Naunheimer H, Bertsche B, Ryborz J, Novak W (2011) Automotive transmissions, 2nd edn. Springer, Berlin, HeidelbergCrossRefGoogle Scholar
  6. 6.
    Nanney MJ (2007) Light and heavy vehicle technology, 4th edn. Elsevier, OxfordCrossRefGoogle Scholar
  7. 7.
    Fischer R, Küçükay F, Jürgens G, Najork R, Pollak B (2015) The automotive transmission book. Springer, HeidelbergGoogle Scholar
  8. 8.
    Petrov AV (1966) Planetary and hydromechanical transmissions of wheel and track-type vehicles. Mashinostroeniye, MoscowGoogle Scholar
  9. 9.
    Laptev YN (1973) Automotive torque converters. Mashinostroeniye, MoscowGoogle Scholar
  10. 10.
    Zhang Y, Mi C (2018) Automotive power transmission systems. Wiley, New YorkCrossRefGoogle Scholar
  11. 11.
    Lapidus VI, Petrov AV (1961) Hydromechanical transmissions of motor vehicles. Mashgiz, MoscowGoogle Scholar
  12. 12.
    Narbut AN (1966) Torque converters. Mashinostroeniye, MoscowGoogle Scholar
  13. 13.
    Lapidus VI (1971) Torque converters. Mashinostroeniye, MoscowGoogle Scholar
  14. 14.
    Trusov SM (1977) Torque converters of motor vehicles. Mashinostroeniye, MoscowGoogle Scholar
  15. 15.
    Sergeev LV, Kadobnov VV (1980) Hydromechanical transmissions of high-speed track-type vehicles. Mashinostroeniye, MoscowGoogle Scholar
  16. 16.
    Mazalov ND, Trusov SM (1971) Hydromechanical Gearboxes. Mashinostroeniye, MoscowGoogle Scholar
  17. 17.
    Gavrilenko BA, Semichastnov IF (1969) Hydraulic couplings and transformers. Mashinostroeniye, MoscowGoogle Scholar
  18. 18.
    Hydromechanical Transmissions. Design, Production, Operation (1980) Mashinostroeniye, MoscowGoogle Scholar
  19. 19.
    Stesin SP (1996) Parameter optimization of hydrodynamic drives of construction and road machines. Mashinostroeniye, MoscowGoogle Scholar
  20. 20.
    Narbut AN, Brimmer AA (1972) Reverse torque converter. SU Patent 331202, 7 Mar 197Google Scholar
  21. 21.
    Narbut AN (1975) Torque converter. SU Patent 356377, 25 Oct 1975Google Scholar
  22. 22.
    Trushin NN, Orlov AB (1996) Controlled complex torque converter. RF Patent 2065103, 10 Aug 1996Google Scholar

Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  1. 1.Tula State UniversityTulaRussia
  2. 2.Bryansk State Technical UniversityBryanskRussia

Personalised recommendations