Bogie of a rail vehicle

Patent metadata

Field	Value
Publication number	US-11845477-B2
Application number	US-201916962577-A
Country	US
Kind code	B2
Filing date	Jan 3, 2019
Priority date	Jan 16, 2018
Publication date	Dec 19, 2023
Grant date	Dec 19, 2023

Abstract

A bogie of a rail vehicle has at least one wheelset with two oppositely situated wheels that are rigidly connected to one another, a wheelset bearing arrangement of the wheelset within the two wheels, a traction motor which directly drives the wheelset, and an aerodynamic paneling enclosure of the bogie. The traction motor is a permanently excited synchronous motor with liquid cooling.

First claim

The invention claimed is:

1. A bogie of a rail vehicle, the bogie comprising:
at least one wheelset with two opposing, rigidly interconnected wheels;
a wheelset bearing of said at least one wheelset within said two wheels;
a traction motor configured to drive said wheelset directly, said traction motor being a permanently excited synchronous motor with liquid cooling;
said liquid cooling being effected by a liquid cooling jacket, and said traction motor having a closed internal cooling circuit to be recooled at said liquid cooling jacket; and
an aerodynamic enclosure of the bogie, said enclosure being a full enclosure formed of shell-shaped enclosure elements on an underside, side regions, a front region and a rear region of the bogie, and said enclosure element on the underside being formed with recesses for said wheels of said wheelset.

2. The bogie according to claim 1 , wherein said closed internal cooling circuit is to be recooled at a motor can of a stator of said traction motor.

3. The bogie according to claim 2 , wherein said liquid cooling jacket cooling is arranged between a rear side of the stator of said traction motor and the internal cooling circuit.

4. The bogie according to claim 3 , wherein said internal cooling circuit includes outer air-guiding ducts.

5. The bogie according to claim 2 , further comprising a motor can disposed to separate said stator of said traction motor from a rotor of said traction motor, enabling said stator to be cooled by way of an insulating liquid.

6. A rail vehicle, comprising at least one bogie according to claim 1 , and wherein at least one recooling unit of the liquid cooling is arranged in and/or on the rail vehicle.

7. The rail vehicle according to claim 6 , configured as a high-speed train.

Assignees

• Siemens Mobility GmbH
• Siemens Mobility Austria Gmbh

Inventors

• Kueter Christian
• Schaefer-Enkeler Andreas
• Teichmann Martin
• Adam Christoph
• Koerner Olaf
• Seitz Peter

Classifications

• B61C9/50 Primary

  in bogies · CPC title

• B61D17/02 Primary

  reducing air resistance by modifying contour {; Constructional features for fast vehicles sustaining sudden variations of atmospheric pressure, e.g. when crossing in tunnels} · CPC title

• B61F3/14

  specially modified for reducing air resistance · CPC title

• H02K1/32

  with channels or ducts for flow of cooling medium · CPC title

• B60L2200/26

  Rail vehicles · CPC title