Exhibit description

Diesel locomotive TGM1-575

With hydraulic transmission

TGM1 (diesel locomotive with hydraulic transmission, shunting, type 1) — the first serial Soviet shunting locomotive with hydraulic transmission. Initially designated as TG^M. The project was carried out under the supervision of the chief designer of the Murom plant named after F.E. Dzerzhinsky A.M. Rusak. In total, from 1956 to 1972 the plant produced 3,368 diesel locomotives of the TGM1 series for industry, and from 1958 to 1963 — 36 diesel locomotives for the Ministry of Railways.

The locomotive is powered by a 1D12-400 diesel engine from the Barnaul plant with a capacity of 400 hp at 1600 rpm. Fuel consumption at full power is 170–180 g per hp per hour. The engine is started by an electric starter. The torque from the engine is transmitted to the breaker shaft via a step-up gearbox, a torque converter or one of two fluid couplings, a two-speed gearbox and a reverse gearbox. The latter is connected to the wheel pairs by means of a so-called group drive.

The 001 locomotive and some others were equipped with a Voith hydraulic transmission during the first two years of production. As the production of our own hydraulic transmission type GP-400 was mastered, it was installed on all diesel locomotives. It had the same landing places as the German one. The torque converter increased the torque when starting from a standstill by 4.8 times.

Shunting mode

The locomotive in shunting mode developed a continuous traction force of 11,200 kgf at a speed of 5 km/h, and in train mode — 5,600 kgf at a speed of 10 km/h. Maximum speed in shunting mode is 30 km/h, in train mode 50 km/h. It was limited by the dynamic qualities of the locomotive. The locomotive could pass along curves with a radius of 60 m. The weight of the locomotive in service condition was 48 tons.

Locomotives 002 and 015 in 1957 were tested on the experimental ring of the All-Russian Research Institute of Railway Transport, where they showed the highest efficiency in train mode when operating on a hydraulic coupling - 30%. There is no comparison with a steam locomotive, where the maximum achieved efficiency was 9%.

In the museum

TGM1 575 was built by the Murom plant named after F.E. Dzerzhinsky in 1960. It was received by the museum from the Velikiye Luki locomotive depot of the October Railway in 1997.

Historical context

They were intended for work at explosive and fire-hazardous sites: oil depots, oil refineries, ammunition depots. Conventional steam locomotives were unsafe there due to the use of open fire and a large number of sparks. To this we can also add the unmasking factor of smoke and steam from steam locomotives.

One of these locomotives was brought to the USSR after the war, where it was given the designation DG14-1: diesel with hydraulic transmission, 14 - axle load in tons, 1st number.

It was equipped with a Voith hydraulic transmission, which consisted of a hydraulic converter, two hydraulic clutches filled with oil, and a two-speed gearbox, providing shunting and train speed modes. Traction force was transmitted to the three driving axles through a breakaway shaft and couplers, as on a steam locomotive, which did not require individual gearboxes on each wheel pair and additional cardan shafts.

The TGM1 diesel locomotive (Diesel locomotive with hydraulic transmission, shunting, type 1) is the first serial Soviet shunting diesel locomotive with hydraulic transmission. Initially, the locomotive was designated as TG^M.

The TGM1 diesel locomotive project was completed under the supervision of the plant's chief designer A. M. Rusak, who had previously been involved in design work at the Sormovsky plant, in particular, in launching the production of the fourth issue of the S^U series steam locomotives.