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US 10,767,539 B2Granted
Arrangement and method for tempering exhaust gas recirculation devices, and motor vehicle
AssigneeFord Global Technologies, LLC
InventorsHans Guenter Quix, Andreas Kuske, Christian Winge Vigild
Life of this patent
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Abstract
Methods and systems are provided for a tempering circuit. A system comprises where the tempering circuit is fluidly coupled to each of an engine cooling circuit, an EGR cooler, and an EGR valve. The tempering circuit comprising a plurality of control valves for selectively adjusting tempering medium flow to various portions of the tempering circuit.
Claims20
A system, comprising:
- a tempering circuit for flowing a tempering medium from a container to an engine cooling circuit, an EGR cooler, and an EGR valve.
A vehicle system, comprising:
- an engine comprising an engine cooling circuit;
- an exhaust-gas passage shaped to receive exhaust gas from the engine, wherein an exhaust-gas recirculation (EGR) passage branches from the exhaust-gas passage and directs exhaust-gas to an intake passage shaped to flow gases to the engine, wherein the EGR passage comprises a cooler and an EGR valve;
- a container comprising a heat storing medium;
- a tempering circuit fluidly coupled to each of the container, the engine cooling circuit, the cooler, and the EGR valve;
- and
- a controller with computer-readable instructions stored on non-transitory memory thereof that when executed enable the controller to:
- flow a tempering fluid to each of the container, the engine cooling circuit, the cooler, and the EGR valve during a heating mode;
- flow the tempering fluid to only the engine cooling circuit and the cooler during a cooling mode;
- flow the tempering fluid to only the container and the engine cooling circuit during a storing mode;
- and
- flow the tempering fluid to only the container, the engine cooling circuit, and the cooler during a combination mode.
8 more elements
A method comprising:
- flowing a tempering medium during a heating mode through a tempering circuit fluidly coupled to an engine cooling circuit, an EGR valve, and an EGR cooler during an engine cold-start;
- flowing the tempering medium during a storing mode from the engine cooling circuit to a container housing a heat storage medium outside of the engine cold-start;
- and
- flowing the tempering medium during a cooling mode between the engine cooling circuit and the EGR cooler outside the engine cold-start when EGR is desired.
1 more element
Dependencies are inferred from the claim text.