Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B61—RAILWAYS
  • B61C—LOCOMOTIVES; MOTOR RAILCARS
  • B61C5/00—Locomotives or motor railcars with IC engines or gas turbines
  • B61C5/02—Arrangement or disposition of intakes and apparatus for supplying, circulating, and filtering air for combustion and engine-cooling purposes

Definitions

• the invention relates to a cooling air supply arrangement for a rail vehicle according to the preamble of claim 1.
• separation grid If the separation grid is electrically heated, accumulated snow can be thawed intermetierend during vehicle standstill. However, continuous operation of electric grid heating is associated with low to medium to high air mass flows
• the invention has the object, the aforementioned cooling air supply arrangement in With regard to their operation in winter conditions to develop such that with little effort a reduced icing of Abscheidegitters can be achieved.
• At least one thermal bridge is provided between a heat-emitting surface of the radiator and the Abscheidegitter.
• a plurality of thermal bridges can be provided, which are distributed substantially uniformly between the Abscheidegitter and the heat-emitting surface of the radiator.
• the affected radiator may be associated with any electrical or other component of the rail vehicle to be cooled.
• Examples of such components are: traction converters, auxiliary converters, traction motors (electric, fluid cooled), transformers, battery chargers, internal combustion engines, generators and gearboxes / retarders.
• the at least one thermal bridge is designed as a plate, which then extends from the heat-emitting surface of the cooler to a region of the Abscheidegitters.
• various variants are conceivable, for example, a centrifugal sediment separator with round cross-section.
• the thermal bridge plate may then be provided with bores for receiving a respective element of a centrifugal sediment separator, wherein the elements may be thermally conductively connected to the at least one thermal bridge.
• the elements of the Abscheidegitters eg centrifugal sediment
• the elements of the Abscheidegitters are arranged in the flow direction of the cooling air immediately in front of the radiator.
• the elements of the Abscheidegitters are preferably arranged vertically, the heat bridge plate is horizontal in this case. This has the advantage that sediment can be removed by the action of gravity down from the cooling arrangement out.
• Figure 1 is a schematic side view of a cooling air supply arrangement for a rail vehicle
• FIG. 2 shows a schematic view from above of the cooling air supply arrangement of FIG. 1.
• the separation grid 1 In view of its external position, the separation grid 1 is exposed to external environmental influences in winter conditions. This means that the separation grid 1 can be added with snow or iced.
• the cooler 2 comprises a cooling medium line 4, in which heated cooling medium is located. Amount of heat released from the cooling medium is transferred to an outer surface of the cooler 2, which typically has a rib structure which can be better recognized in FIG. The heat-emitting
• Outer surface of the radiator 2 and possibly the cooling medium line 4 are connected via thermal bridge plates 5 with the Abscheidegitter 1, wherein the thermal bridge plates 5 substantially evenly vertically above each other between the Abscheidgitter 1 and the radiator 2 are arranged.
• About the thermal bridge plates 5 is originally derived from the cooling medium heat, which is transmitted via the outer surface of the radiator 2 on the thermal bridge plates 5, registered in the Abscheidegitter 1, so that here an increase in temperature can be completed.
• each of the thermal bridge plates 5 is provided with a number of holes 6, each for receiving an element of a
• the elements 7 of the centrifugal sediment separator are inserted into the bores 6 and connected in a heat-conducting manner to the thermal bridge plate 5.
• the thermally conductive connection can be realized in various ways and combinations thereof, e.g. Clamping the centrifugal force sediment separator elements 7 in the crimped bore 6 of the thermal bridge plate 5 or cohesive connection (soldering, welding) in the thermal bridge plate. 5
• deposition grid elements 7 e.g.
• Centrifugal sediment separator elements are arranged vertically precipitated sediment, such as snow, due to the effect of gravitational acceleration down out of the separator 7 out. If the separation grids 1 are frosted, the heat is dissipated via the heat bridge plates 5 from the cooler 2 to the separating grate 1 added with ice or snow. In this way, on the one hand the heat dissipation from the radiator 2 is secured and on the other hand the separation grate 1 (partially) de-iced.

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• 2007
  • 2007-05-09 DE DE102007021746A patent/DE102007021746A1/de not_active Withdrawn
• 2008
  • 2008-04-10 RU RU2009145515/11A patent/RU2457967C2/ru not_active IP Right Cessation
  • 2008-04-10 AT AT08736061T patent/ATE528191T1/de active
  • 2008-04-10 WO PCT/EP2008/054340 patent/WO2008138693A1/de active Application Filing
  • 2008-04-10 EP EP08736061A patent/EP2142408B1/de not_active Not-in-force

Patent Citations (5)

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