SBB BDe 4/4
| BDe 4/4 | |
|---|---|
 |
|
| Numbering: | 1621-1651 |
| Number: | 31 (3 received) |
| Manufacturer: | SLM, SWP, BBC, MFO, SAAS |
| Year of construction (s): | 1952-1955 |
| Retirement: | 1995-1997 |
| Axis formula : | Bo'Bo ' |
| Genre : | BDe 4/4 |
| Gauge : | 1435 mm ( standard gauge ) |
| Length over buffers: | 22,700 mm |
| Trunnion Distance: | 16,250 mm |
| Bogie axle base: | 2,800 mm |
| Total wheelbase: | 19,050 mm |
| Service mass: | 57 t |
| Friction mass: | 57 t |
| Top speed: | 110 km / h |
| Hourly output : | 1176 kW |
| Driving wheel diameter: | 940 mm |
| Power system : | 15,000 V 16 2/3 Hz |
| Number of traction motors: | 4th |
| Type of speed switch: | 18th |
| Brake: | Electric drag brake |
| Train brake: | automatic air brake |
| Train control : | Signum |
| Train heating: | Electric 1000 V 16 2/3 Hz |
| Speedometer: | Hasler RT |
| Coupling type: | UIC screw coupling |
| Seats: | 40 |
| Floor height: | 1150 mm |
| Classes : | 2nd Class |
The BDe 4/4 are electric passenger and baggage railcars of the Swiss Federal Railways , SBB for short . A total of 31 locomotives of this type were produced. Initially, and this until 1956, they were referred to as CFe 4/4.
history
As a result of the emergency electrification of various branch lines during the Second World War , the SBB lacked a suitable locomotive for use in front of the regional trains on the now electrified branch lines. In 1949, SBB ordered the first 13 vehicles of this series. In 1952 a reorder of 18 pieces was placed, so that the entire series comprised 31 vehicles. These vehicles were handed over to the SBB between 1952 and 1955. The big wave of scrapping began in 1995 when more and more RBDe 4/4 became available, which replaced the BDe 4/4 in their service. In their last service as a regular passenger train, the railcars ran the Olten - Läufelfingen - Sissach route. Shortly before the final decommissioning in 1997, two railcars were sold to OeBB , which they used in freight train traffic. But they could also replace the RBDe shuttle train in passenger train service as reserve vehicles. In 2013, OeBB sold its BDe 4/4 to the Koblenz Depot and Rail Vehicle Association (DSF).
technology
The railcar has a driver's cab with front doors on both sides, and the bellows could be lowered into boxes. The BDe 4/4 could run as shuttle trains together with the corresponding control cars. In some railcars, the doors on the baggage compartment side were welded shut during modifications.
The railcar is set up for seated operation and was the first SBB vehicle to have an electric speedometer. It was the first vehicle in which the safety control was combined with a vigilance control upon delivery . The 110 km / h railcar has bogies derived from the Re 4/4 I. These have a welded frame and leaf springs. The oil-cooled transformer is installed under the self-supporting box. The fan for the oil cooling, the air compressor, the converter for the control voltage and the battery boxes are also located under the car body . A current collector and the braking resistors are located on the roof above the bogie of the luggage compartment. Initially, space was kept free on the passenger compartment side in order to be able to mount a second pantograph, but this option was never used, so that this free space was used for the braking resistors during the conversion. The main compressed air switch is located in a box on the roof. The fans for the traction motors are also located on the roof above the driver's cabs. All traction motors were supplied by MFO and the two traction motors were connected in series in the respective bogie. A separating hopper and an electro-pneumatically operated reversing switch were available for each bogie . The hops are housed together with the reversing switch and brake switch in an equipment cabinet next to the luggage compartment. This cabinet, together with the toilet on the opposite side, forms the passage to the luggage compartment. The passage only has a door on the passenger compartment side and is located between the baggage gate and the central access door. The passenger compartment has five windows on each long side and is divided into a smoking and non-smoking compartment as an open-plan compartment with a partition. The bench seats opposite, which are covered with synthetic leather, in the arrangement 2-2 offer a total of 40 seats (16 smokers, 24 non-smokers).
Each bogie has a brake cylinder which is connected via the brake linkage to the automatic slack adjuster with the eight brake blocks located on both sides of each wheel. The spindle handbrake in each driver's cab acts on all brake blocks on the bogie below.
commitment
The railcars were used together with lightweight steel cars, with which they gave a harmonious image. Because not only the window subdivision and height matched, but also the side aprons. With the appropriately equipped intermediate and control cars, shuttle trains could be formed. The use of EW I and EW II as an intermediate car is possible. A multiple control line of type III is required for the formation of shuttle trains at the intermediate cars.
The following control cars were set up for use with the BDe 4/4:
- ABt 50 85 37-03 900-919
- ABt 50 85 38-33 906-921
- ABt 50 85 38-33 930-937
- Bt 50 85 28-33 900-905
- Bt 50 85 29-33 900-902
The depot locations were mainly Lausanne, Olten and Winterthur, between which the railcars were moved back and forth. In addition, three railcars were to be found in the Bellinzona depot for a while. In the course of their service life, they were used on almost every SBB route, as well as on many private railway lines.
The pre-tensioning service in front of freight train 805 and express trains 57, 65 and 67 on the Gotthard southern ramp can certainly be mentioned as a special feature. The railcar was not actually built for that, but because of the tense locomotive situation at the time, whatever was available was used.
Received vehicles
- BDe 4/4 No. 1632, Stands in Birmensdorf at the scrap metal dealer, future unknown (March 26, 2019)
- BDe 4/4 No. 1643 has been designated as a historic vehicle since 1996 and has been assigned to the SBB Historic .
- BDe 4/4 No. 1646 formerly a school assistant trainer (Schwalbe), the heavily converted railcar has been looked after by SBB Historic since 2005, which often uses it as a film vehicle and for driving in the driver's cab.
