Locomotive Propulsion Module for Refurbishment
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Solution Overview
Problem
Older locomotives often have outdated, unreliable, and inefficient systems that require extensive and costly repairs or replacement, making refurbishment on a component-by-component basis not cost-effective, leading to the wastage of still operational systems.
Innovation Solution
A prefabricated propulsion system module that includes all necessary components for operation, designed to be installed as a single modular unit onto a locomotive platform, reducing installation time and costs, and allowing for easy connection to existing systems, thereby extending the life of older locomotives.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If component-by-component refurbishment is performed on older locomotives, then individual systems can be repaired or replaced, but the overall process becomes extremely complex and time-consuming
Solution Approach 1:
The invention divides the locomotive into distinct functional modules: a reusable platform containing the drive system (traction motors, trucks, undercarriage) and a replaceable propulsion system module containing the engine, alternator, and electrical components. This segmentation allows the propulsion module to be removed and replaced as a single unit, dramatically simplifying the refurbishment process while maintaining reliability of both the conserved platform systems and the renewed propulsion systems.
2Reliability
If extensive repair and replacement of outdated systems is performed, then locomotive reliability improves, but the time required for refurbishment increases significantly
Solution Approach 1:
The propulsion system modules are pre-assembled, pre-tested, and prepared in advance as complete functional units. This preliminary preparation allows the actual refurbishment process to proceed rapidly, as the modules can be directly installed onto the platform without requiring on-site assembly or testing of individual components, thereby reducing refurbishment time while ensuring reliability through prior testing.
3Reliability
If complete overhaul of engine, alternator, and electrical components is performed, then propulsion system performance is restored, but costs become prohibitively high
Solution Approach 1:
By segmenting the locomotive into a reusable platform and replaceable propulsion modules, the invention enables cost-effective refurbishment. The platform with its long-lived mechanical systems can be conserved and reused, while only the propulsion modules requiring updates need to be replaced. This segmentation makes the refurbishment process economically viable compared to complete overhauls, as demonstrated by the modular design allowing selective replacement of only the necessary systems.
4Reliability
If outdated electrical components are replaced, then system efficiency improves, but many components are obsolete and no longer commercially available
Solution Approach 1:
The propulsion system modules are designed as universal, self-contained units that can be applied across multiple locomotive platforms. This universality ensures that updated modules with modern, available components can be deployed on various locomotives, solving the obsolescence problem. The modular design allows the propulsion system to be updated with currently manufactured components rather than requiring rare obsolete parts, while the standardized interface enables broad applicability.
Data Source
AI summary
A propulsion skid module useful for refurbishing locomotives is taught. In one embodiment, the propulsion skid module includes a skid base serving as a support for an engine; the skid base including at least two support members extending substantially the length of the module and at least one panel spanning the two support members; with the module further comprising an engine; a blower for delivery of air under pressure, a control device compartment, an auxiliary cab including power connectors, and an air compressor secured onto the skid base; and an air plenum defined in the base. Methods for refurbishing a locomotive are also taught.