Locomotive engine cooling system
US6006731A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 18, 1997 |
| Grant date | Dec 28, 1999 |
| Priority date | — |
| Expiry date | Nov 18, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A locomotive engine cooling system has a pair of radiator banks having substantially the same cooling capacity. The system has separate engine and aftercooler coolant loops and assigns one of the radiator banks exclusively to each of the loops, with the maximum cooling capacity being less than that required to absorb an engine heat load in a predetermined, warmed-up mode of operation but greater than that required to absorb an aftercooler heat load in the same predetermined, warmed-up mode of operation. To balance the system, a linking conduit directs a portion of the hot coolant exiting the engine to a conduit leading directly to the aftercooler radiator to supplement the maximum cooling capacity of the engine radiator with a predetermined portion of the maximum cooling capacity of the aftercooler radiator in absorbing the engine heat load. A return flow conduit from the aftercooler radiator to the engine may be a common coolant tank, a separate conduit or both. A valved conduit in parallel with the linking conduit selectively provides additional coolant flow from the engine to the aftercooler radiator to absorb additional heat from the engine for engine temperature limiting at hi…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.