An internal combustion engine system
AssigneeVolvo Truck Corporation
InventorsLennart ANDERSSON, Arne ANDERSSON, Bengt JOHANSSON, Nhut LAM, Staffan LUNDGREN
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Abstract
An internal combustion engine system includes at least one combustor, a compressor arranged to compress air, an air guide arranged to guide compressed air from the compressor to at least one of the at least one combustor, an expander arranged to expand exhaust gases from at least one of the at least one combustor and to extract energy from the expanded exhaust gases, and an exhaust guide arranged to guide exhaust gases from at least one of the at least one combustor to the expander, wherein the exhaust guide is at least partly integrated with the air guide.
Claims34
An internal combustion engine system comprising
- at least one combustor,
- a compressor arranged to compress air,
- an air guide arranged to guide compressed air from the compressor to at least one of the at least one combustor,
- an expander arranged to expand exhaust gases from at least one of the at least one combustor and to extract energy from the expanded exhaust gases, and
- an exhaust guide arranged to guide exhaust gases from at least one of the at least one combustor to the expander,
- the exhaust guide being at least partly integrated with the air guide,
- wherein the exhaust guide comprises an integrated portion which is located within the air guide, that the integrated portion presents a wall delimiting the integrated portion, and that the integrated portion comprises an insulation layer located inside the wall.
An exhaust treatment unit comprising a pre-expander exhaust treatment device adapted to receive exhaust gases from a combustor of an internal combustion engine system, and to deliver exhaust gases to at least one of at least one expander of the engine system, wherein the exhaust treatment unit further comprises a post-expander exhaust treatment device adapted to receive exhaust gases from at least one of the at least one expander, and that the post-expander exhaust treatment device is integrated with the pre-expander exhaust treatment device.
34-51. (canceled)
Dependencies are inferred from the claim text.