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US 11,598,237 B2Granted
Automatic draining of water-fuel separator via downstream injection system
AssigneeFord Global Technologies, LLC
InventorsBrien Lloyd Fulton, Carlos Armesto
Life of this patent
Estimating the term…
Abstract
A diesel engine system includes an engine, an exhaust system connected to the engine, and a water-fuel separator. The exhaust system has an aftertreatment device, an exhaust pipe upstream of the aftertreatment device, and a fuel injector connected to the exhaust pipe. The water-fuel separator has a filter configured to separate water from fuel and a reservoir configured to store the separated water. The reservoir is in fluid communication with the fuel injector.
Claims9
A diesel engine system comprising:
- an engine;
- an exhaust system connected to the engine, the exhaust system including an aftertreatment device, an exhaust pipe upstream of the aftertreatment device, and a fuel injector connected to the exhaust pipe;
- a water-fuel separator including a filter configured to separate water from fuel, a reservoir configured to store the separated water, and a reservoir-drain port opening into the reservoir;
- a fuel line connecting the reservoir-drain port in fluid communication with the fuel injector
- a secondary water-fuel separator in fluid communication with the water-fuel separator, the secondary water-fuel separator including a second reservoir configured to store separated water and a second reservoir-drain port opening into the second reservoir;
- and
- a second fuel line connecting the second reservoir-drain port in fluid communication with the fuel injector;
- and,
- a valve having a first inlet connected to the fuel line, a second inlet connected to the second fuel line, and an outlet connected to the fuel injector by a third fuel line.
6 more elements
A diesel engine system comprising:
- an engine;
- an exhaust system connected to the engine, the exhaust system including an aftertreatment device, an exhaust pipe upstream of the aftertreatment device, and a fuel injector connected to the exhaust pipe;
- a water-fuel separator including a filter configured to separate water from fuel and a reservoir configured to store the separated water, wherein the reservoir is in fluid communication with the fuel injector;
- and
- a valve disposed between the reservoir and the fuel injector, wherein the valve includes a first inlet connected in fluid communication with the reservoir and a second inlet connected in fluid communication with a fuel outlet of the water-fuel separator.
2 more elements
A diesel engine system comprising:
- an engine;
- an exhaust system including an aftertreatment device and a fuel injector upstream of the aftertreatment device;
- a primary water-fuel separator including a first reservoir;
- a secondary water-fuel separator including a second reservoir, wherein the first and second reservoirs are arranged to independently supply fuel to the fuel injector;
- and
- a valve having a first inlet connected in fluid communication with the first reservoir, a second inlet connected in fluid communication with an outlet of the primary water-fuel separator, and an outlet connected in fluid communication with the fuel injector.
3 more elements
Dependencies are inferred from the claim text.