Bombardier Itino Y31

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Y31 / Y32
Motorvagn type Y31.jpg
Numbering: Y31: 1400-1405, 1412-1429
Y32: 1406-1411
Number: Y31: 24
Y32: 6
Manufacturer: Bombardier Transportation , Hennigsdorf plant
Year of construction (s): from 2002
Axis formula : Y31: (1A) '+ 2' + (A1) '
Y32: (1A)' + 2 '+ 2' + (A1) '
Length over coupling: Y31: 38.4 m,
Y32: 54.75 m
Empty mass: Y31: 61.5 t
Y32: 82.5 t
Service mass: 77 t (Y31)
Top speed: 140 km / h
Motor type: up to 2006:
2 × MAN D 2842 LE 607, 12 cylinders
EURO2
from 2008:
2 × FPT Vector8, 8 cylinders
Stage3B (comparable to EURO5)
Power transmission: until 2006:
diesel-hydraulic,
Voith Turbo T 212 bre
from 2008:
diesel-mechanical
ZF Ecolife
Tank capacity: 2 × 1,000 liters,
usable 900 liters each
Brake: Retarder (2 ×): each briefly up to 450 kW, continuously 300 kW;
ep brake
Control: up to 4 vehicles in multiple traction
Coupling type: Scharfenberg

The Swedish diesel multiple units of the Y31 and Y32 series, which have been in use since 2003, are manufactured under the name Itino by Bombardier Transportation at the Hennigsdorf plant in Germany. The multiple units also used in Germany differ in the number of cars. While the Y31 consists of two motorized end cars, the Y32 also has a non-powered middle car. The vehicles are owned by the Transitio leasing company , which makes them available to local companies.

technology

The maximum speed of the train is 140 km / h. It has two MAN diesel engines that are based on a truck engine. The power is transmitted hydraulically. From 2008, the newly built trains received two more powerful Iveco engines from the truck sector. The transmission from ZF Friedrichshafen is used in trucks and buses. The four railcars for the Kustpilen have a first-class compartment with eight seats to replace the Y2 . Each railcar part has a handicapped accessible low-floor section.

Areas of application

In Sweden, the trains are used by local modes of transport, such as on the routes operated by Krösatågen , on the Gårdsjö – Håkantorp railway line ( Västtrafik , used by Arriva ) and in Värmland on the Kil – Torsby railway line ( Värmlandstrafik , used by Tågkompaniet). The Y1 railcars, some of which are still in use, are to be completely replaced by the Y31 over time.

List of existing Y31 and Y32 trains

  • Tåg i Bergslagen used the first two Itino railcars 1400 and 1401 delivered to Sweden on the Västerdalsbana from 2002 to 2011 , but returned the vehicles to Transitio after passenger traffic on this route was closed.
Y31 from Västtrafik in front of the Framnäs shopping center
Y32 from Västtrafik
Driver's cab
  • Västtrafik for the connection from Hallsberg to Herrljunga via the Gårdsjö – Håkantorp (Kinnekullebanan) railway line
    • Y31 1400 - Björn Skifs
    • Y31 1402 - no name, but used as Pälle Näver for Krösatåg
    • Y31 1403 - no name, but used to work for Krösatåg as Alf Hambe - crashed on June 16, 2003 at Hok
    • Y31 1412
    • Y31 1413 - no name, but used to work for Krösatåg as Elin Wägner
    • Y31 1417 - delivered in December 2009.
    • Y31 1418 - delivered in December 2009.
    • Y31 1419 - delivered in December 2009.
  • Transit
    • Y31 1422 - delivered in March 2010 as a reserve train for maintenance.

Braking problems

At the beginning of their use, it turned out that the braking system required significantly reduced speeds in places due to its design in special winter conditions. This depended u. a. This goes hand in hand with the fact that the usual method in Germany of letting the driver apply the brakes during the journey (“cleaning the brake”) was not accepted in Sweden. The sensitive anti-skid system therefore intervened early, which would have led to longer braking distances. The security system on trains in Sweden detects this and recommends a reduced speed. The operator considered this to be unsuitable for operation (compared to the old trains previously used, which were not equipped with a comparable anti-skid system). Therefore, the two multiple units initially delivered to Västerdalsbanan were parked until the problem was resolved and replaced by trains from Statens Järnvägar .

The solution largely consisted of the introduction of special "winter braking software" that controls the regular application of the brakes and thus ensures an improved braking effect through constant pre-cleaning and frictional heat.

Individual evidence

  1. ↑ Y31 / Y32. In: jarnvag.net. Retrieved July 25, 2018 (Swedish).

Web links

Commons : Bombardier Itino Y31  - Collection of images, videos and audio files
  • Y31 / Y32. In: jarnvag.net. Retrieved July 25, 2018 (Swedish).