BBÖ VT 63

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BBÖ VT 63
DR 931-934
Numbering: BBÖ VT 63.01-04
DR 931-934
Number: 4th
Manufacturer: Austro-Daimler
Year of construction (s): 1933
Retirement: until 1948
Axis formula : (1A) (A1)
Genre : C4vT
Gauge : 1435 mm ( standard gauge )
Length: over car body: 22,500 mm
over track clearing device: 23,730 mm
Height: 2,638 mm (to the top of the roof)
Width: 2,800 mm
Trunnion Distance: 17,000 mm
Bogie axle base: 3,000 mm
Total wheelbase: 20,300 mm
Service mass: empty: 19,080 kg
occupied: 25,080 kg
Wheel set mass : 6,750 kg (empty trolley)
Top speed: 100 km / h
Installed capacity: originally 2 × 59 kW (2 × 80 PS)
after conversion 2 × 74 kW (2 × 100 PS)
Wheel diameter: 1,030 mm
Motor type: Originally Austro-Daimler AD 640
after conversion Oberhänsli 6 N 11 E
Motor type: Originally six-cylinder four-stroke gasoline engine
after conversion of six-cylinder four-stroke diesel engine
Rated speed: originally 2,200 rpm
after conversion 1,600 rpm
Power transmission: Fluid transmission
Tank capacity: 300 l
Train brake: Bosch type vacuum brake
Train control : Handbrake
Train heating: Fresh air
Seats: 74 + 18 folding seats
Floor height: 645 mm
Classes : 3.

The BBÖ VT 63 was a railcar of the Austrian Federal Railways (BBÖ).

Technical data and history

The railcar was manufactured by Austro-Daimler and was created at the same time as the BBÖ VT 62 . It was a four-axle single vehicle that was equipped with a two-engine system. It was described as a transitional solution to the express railcar .

Their streamlined shape made them elegant vehicles and sufficiently fast for the BBÖ's route network. They were delivered in 1933 and accepted by the state railways at the turn of 1933/34. Initially they were stationed in Vienna and mainly served the routes Vienna – Graz and Vienna – Villach in express train operations . After the delivery of the BBÖ VT 42 , they were withdrawn from these services.

After a vehicle fire broke out, two six-cylinder four-stroke diesel engines were installed in the VT 63.02 in the main workshop in St. Pölten in 1936 , the output of which was additionally increased to 74 kW (100 hp). A year later, the other three vehicles were converted. In 1938 they were taken over by the Deutsche Reichsbahn and designated as 931-934 . In 1940 Villach was given as the home of the 932 , and the Reichsbahndirektion Wien for the 933 and 934 . The 931 was retired in 1943, the 932 was bombed in 1945. The 933 and 934 came to the Austrian Federal Railways and are said to have been used in Styria . The vehicles were retired by 1948.

Like the BBÖ VT 61 and BBÖ VT 62, this series of vehicles failed to achieve continuous success due to the weak construction of the car body and the running gear.

Vehicle body

In contrast to its predecessors BBÖ VT 61 and BBÖ VT 62, the BBÖ VT 63 was designed as a four-axle vehicle and had a driver's cab at both ends of the vehicle. The car had a very low space weight, which was bought at the expense of the stability of the car body. This became particularly evident after the heavier diesel engines were installed. For reasons of aerodynamics , the car body was kept very small at 2.6 m in height, so the clear height of the interior was only 1,948 mm. The interior of the car was heated by fresh air heated with the engine exhaust. The cars did not have a pulling and buffing device . They had an arrow-shaped railroad clearer that could also be used as a snow plow . All wheelsets were on roller bearings , the bogies had an off-center pivot point.

Initially, the cars were equipped with gasoline engines with 80 hp each, which were not sufficient for express traffic. Therefore, from 1936 onwards, they received more powerful diesel engines , which had the advantage of greater fire protection. The motors transmitted their torque to a fluid transmission , which consisted of a converter and a clutch circuit and was manufactured by Voith in St. Pölten. The fluid transmission of the cars was controlled pneumatically. The inner axis of the respective bogie was driven from the downstream reversing gear via a short cardan shaft. The gearboxes were reinforced with the change to the more powerful engine. The engine was water-cooled and cooled by fresh air. This was achieved by the wide intake grilles for the fresh air in the front of the car. A fan wheel was driven directly by the motor via V-belts . The car had an electrical system of 24 V DC . The energy for this was supplied by an alternator or a battery. In addition, the cars had a compressed air network for switching the transmission. With it, sound signals could be emitted and the drive wheels sanded.

literature

Web links

Individual evidence

  1. a b Heinz R. Kurz: The railcars of the Reichsbahn types. EK-Verlag, Freiburg 2013, ISBN 978-3-88255-162-4 , p. 242.
  2. Heinz R. Kurz: The railcars of the Reichsbahn types. EK-Verlag, Freiburg 2013, ISBN 978-3-88255-162-4 , p. 244.
  3. ^ Photo of the VT 63 in the digital railway archive. (No longer available online.) Archived from the original on September 23, 2016 ; accessed on September 24, 2016 .