Diesel-electric locomotive

• US 20040149160A1
• Filed: 04/10/2003
• Published: 08/05/2004
• Est. Priority Date: 01/30/2003
• Status: Active Grant

• Current Assignee: Siemens AG
• Original Assignee: Siemens AG
• Inventors: Hofmann, Heinz, Gritsch, Christian, Foesel, Ulrich, Papp, Gyoergy
• Granted Patent: US 7,044,096 B2
• Time in Patent Office: Days
• US Class Current: 105/35
• CPC Class Codes: B60L 1/02 to electric heating circuits
• CPC Class Codes: B60L 2200/26 Rail vehicles
• CPC Class Codes: B60L 50/10 using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
• CPC Class Codes: B60L 7/08 Controlling the braking effect B60L7/04, B60L7/06 take precedence
• CPC Class Codes: B61C 5/02 Arrangement or disposition of intakes and apparatus for supplying, circulating, and filtering air for combustion and engine-cooling purposes
• CPC Class Codes: B61C 7/04 Locomotives or motor railcars with two or more different kinds or types of engines, e.g. steam and IC engines
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 30/00 Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance

Abstract

A diesel-electric locomotive includes an assembly including a diesel engine and a generator, to which a drive unit is connected. The diesel engine is connected to a cooling system holding fluid. The drive unit is electrically connected to a braking resistor. There is provision for the braking resistor to be arranged in the cooling system so as to give off heat to the fluid. For example, the braking resistor is connected to a separate heating voltage source which may be, for example, a voltage source in a second locomotive which is coupled to the locomotive in a traction grouping.

Claims

1. A diesel-electric locomotive, comprising:

an assembly including a diesel engine and a generator to which a drive unit is connected, wherein the diesel engine is connected to a cooling system holding fluid and the drive unit is electrically connected to a braking resistor, the braking resistor being arranged in the cooling system so as to give off heat to the fluid.

2. The diesel-electric locomotive as claimed in claim 1, wherein the braking resistor is connected to a separate heating voltage source.

3. The diesel-electric locomotive as claimed in claim 2, wherein a voltage source in a second locomotive, coupled to the locomotive and connected via an electrical line, is used as a separate heating voltage source.

4. The diesel-electric locomotive as claimed in claim 1, wherein the fluid is at least one of water and water with additives.

5. An assembly for a locomotive, comprising:

an internal combustion engine; and

a generator, wherein the generator is connected to a drive unit, wherein the internal combustion engine is connected to a cooling system including fluid and wherein the drive unit is electrically connected to a braking resistor, the braking resistor being arranged in the cooling system so as to give off heat to the fluid.

6. The assembly of claim 5, wherein the internal combustion engine is a diesel engine.

7. The assembly of claim 5, wherein the braking resistor is connected to a separate heating voltage source.

8. The assembly of claim 7, wherein a voltage source in a second locomotive, coupled to the locomotive including the assembly and connected via an electrical line, is used as a separate heating voltage source.

9. The assembly of claim 5, wherein the fluid is at least one of water and water with additives.

10. A locomotive, comprising:

an assembly including an internal combustion engine and a generator, wherein the generator is connected to a drive unit, wherein the internal combustion engine is connected to a cooling system including fluid and wherein the drive unit is electrically connected to a braking resistor, the braking resistor being arranged in the cooling system so as to give off heat to the fluid.

11. The locomotive of claim 10, wherein the locomotive is a diesel-electric locomotive.

12. The locomotive as claimed in claim 10, wherein the braking resistor is connected to a separate heating voltage source.

13. The locomotive as claimed in claim 12, wherein a voltage source in a second locomotive, coupled to the locomotive and connected via an electrical line, is used as a separate heating voltage source.

14. The locomotive as claimed in claim 10, wherein the fluid is at least one of water and water with additives.