Coolant system for an engine
AssigneeCNH Industrial America LLC
InventorsMarc Hansen, Daniel Morey
Life of this patent
Estimating the term…
Abstract
Systems and apparatuses include a de-aeration tank for an engine system. The de-aeration tank including a single internal volume defined by walls, a diesel exhaust fluid (DEF) doser port configured to communicate coolant with a DEF doser module, and engine coolant ports configured to communicate coolant with an engine coolant system.
Claims20
A de-aeration tank for an engine system including an engine and an engine coolant system, the engine coolant system including a radiator, a radiator supply line extending from the engine to the radiator, and a radiator return line extending from the radiator to the engine, the de-aeration tank comprising:
- walls defining a single internal volume;
- a diesel exhaust fluid (DEF) doser port configured to fluidly couple with a DEF doser to facilitate a first flow of coolant therebetween;
- one or more engine coolant ports configured to fluidly couple with the radiator return line of the engine coolant system to facilitate a second flow of the coolant to the radiator return line;
- and
- one or more vent inlets configured to fluidly couple with at least one of (a) the radiator, (b) the radiator supply line, or (c) the engine to facilitate a third flow of entrained air within the coolant into the single internal volume.
A system comprising:
- an engine;
- an engine coolant system including a radiator, a radiator supply line extending from the engine to the radiator, and a radiator return line extending from the radiator to the engine;
- an exhaust gas aftertreatment system receiving exhaust gases from the engine and including a selective catalytic reduction (SCR) system, a diesel exhaust fluid (DEF) tank, and a DEF doser receiving DEF from the DEF tank and injecting the DEF into the SCR system;
- and
- a de-aeration tank fluidly coupled to the engine, the DEF doser, and at least one of the radiator, the radiator supply line, or the radiator return line of the engine coolant system, the de-aeration tank including:
- walls defining an internal volume;
- one or more ports in fluid communication with the engine coolant system;
- a DEF doser port in fluid communication with the DEF doser;
- and
- an engine de-aeration port in fluid communication with the engine.
Dependencies are inferred from the claim text.