TU7 diesel locomotive

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TU7 - TU7A
Tu7A.jpg
Type and origin
Power type Diesel
Builder Kambarka Engineering Works
Build date 1971 - today
Specifications
Gauge 750 mm (2 ft 5 12 in)
Fuel type Diesel
Transmission hydraulic
Performance figures
Maximum speed 50 km/h
Career
Nicknames  RUS - ТУ7 / ТУ7А
 Belarus - ТУ7 / ТУ7А
 Bulgaria - TU7E (series 81 БДЖ)
 Slovakia - TU46
 Vietnam - D4H / D4Hr
 Ukraine - ТУ7 / ТУ7А
 Estonia - ТУ7 / ТУ7А
 Latvia - ТУ7 / ТУ7А
 Lithuania - ТУ7 / ТУ7А
 Cuba - TU7E
 Guinea - TU7E

TU7 (ТУ7) - Soviet, later Russian diesel locomotive for gauge 750 mm (2 ft 5 12 in) – 1,067 mm (3 ft 6 in).

History[edit]

The TU7 (ТУ7) was developed in 1971-1972 at the Kambarka Engineering Works to replace the aging locomotive classes TU4 (ТУ4) and TU2 (ТУ2). There were 3,361 locomotives constructed, of which several hundred were exported to the countries of the socialist community and sots.orientatsii. The TU7 - TU7A (ТУ7 - ТУ7А) was designed to be used on any gauge from 750 mm (2 ft 5 12 in) to 1,435 mm (4 ft 8 12 in). In 1986 the locomotive design was updated and designated type TU7A (ТУ7А).

D4H[edit]

The D4H 1,000 mm (3 ft 3 38 in) and 9 locomotives D4Hr for standard gauge 1,435 mm (4 ft 8 12 in), also known as the TU7 - TU7A (ТУ7 - ТУ7А) diesel locomotive,[1] is a series of diesel locomotives currently used on the Vietnamese railway network. With 77 locomotives D4H 1,000 mm (3 ft 3 38 in) in service throughout the country as of 2005, it is the most common type of locomotive in use in Vietnam.[1] The series was originally procured from the Soviet Union after the Vietnam War.

Principal dimensions[edit]

Technical drawing - snowplow LD24 (ЛД24)
  • Length of the body - 9.400 mm
  • Width of the body - 2.450 mm
  • Height above head of rail - 3.550 mm
  • Distance between bogies - 4.700 mm
  • Base of bogies - 1.400 mm
  • Diameter of wheels - 600 mm
  • Minimum curve radius - 40m
  • Total weight - 24 tons
  • Axle-load - 5 tons
  • Possible gauges - 705 - 1435mm
  • Maximum speed - 50 km/h
  • Diesel engine Type:
  • Bernaul 1D12-400,
  • 12-cylinder,
  • V-shaped
  • Rated power - 400HP
  • Operating speed - 500 - 1560 r/min
  • Transmission - hydraulic
  • Wheel formula - B'B'

See also[edit]

References[edit]

  1. ^ a b "Vietnam Railways: Rolling Stock". Retrieved 2011-01-20.  (Vietnamese)

External links[edit]