Internal combustion engine system

Patent metadata

Field	Value
Publication number	US-10704447-B2
Application number	US-201516060967-A
Country	US
Kind code	B2
Filing date	Dec 14, 2015
Priority date	Dec 14, 2015
Publication date	Jul 7, 2020
Grant date	Jul 7, 2020

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.

First claim

The invention claimed is:

1. 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.

2. A system according to claim 1 , wherein the exhaust guide is arranged to penetrate an external wall of the air guide.

3. A system according to claim 1 , wherein the integrated portion presents a circular cross section.

4. A system according to claim 1 , wherein the intergrated portion presents a plurality of externally protruding flanges.

5. A system according to claim 1 , wherein the air guide comprises an air buffer container arranged to provide an air buffer volume for the compressed air.

6. A system according to claim 5 , wherein the system comprises a plurality of combustors, and that the air buffer container is arranged to deliver the compressed air to a plurality of the combustors.

7. A system according to claim 5 , wherein the system comprises a plurality of compressors and that the air buffer container is arranged to receive compressed air from a plurality of the compressors.

8. A system according to claim 5 , wherein the at least part of the exhaust guide is located within the air buffer container.

9. A system according to claim 1 , wherein the exhaust guide comprises an exhaust buffer container.

10. A system according to claim 9 , wherein the system comprises a plurality of combustors, and that the exhaust buffer container is arranged to receive exhaust gases from a plurality of the combustors.

11. A system according to claim 9 , wherein the system comprises a plurality of expanders, and that the exhaust buffer container is arranged to deliver exhaust gases to a plurality of the expanders.

12. A system according to claim 9 , wherein the exhaust buffer container is located within the air guide.

13. A system according to claim 5 , wherein the exhaust guide comprises an exhaust buffer container, and the exhaust buffer container is located within the air buffer container.

14. A system according to claim 1 , wherein a pre-expander exhaust treatment device is located in the exhaust guide, which pre-expander exhaust treatment device is arranged to provide an exhaust treatment process to the exhaust gases from the combustor.

15. A system according to claim 14 , wherein the pre-expander exhaust treatment device is located in the integrated portion.

16. A system according to claim 14 , wherein the pre-expander exhaust treatment device comprises an oxidation catalyst.

17. A system according to claim 14 , wherein the pre-expander exhaust treatment device comprises a particulate filter.

18. A system according to claim 16 , wherein the pre-expander exhaust treatment device comprises a particulate filter, and the particulate filter is located downstream of the oxidation catalyst.

19. A system according to claim 1 , wherein the system comprises a post-expander exhaust treatment device arranged to receive exhaust gases from the expander and to provide an exhaust treatment process to the received exhaust gases.

20. A system according to claim 19 , wherein the post-expander exhaust treatment device is a selective catalytic reduction (SCR) catalyst.

21. A system according to claim 19 , wherein the post-expander exhaust treatment device and the air guide are integrated with each other.

22. A system according to claim 19 , wherein the post-expander exhaust treatment device is located within the air wide.

23. A system according to claim 19 , wherein the post-expander exhaust treatment device is located externally of the integrated portion and internally of an external wall of the air guide.

24. A system according to claim 23 , wherein a pre-expander exhaust treatment device is located in the integrated portion which pre expander exhaust treatment device is arranged to provide an exhaust treatment process to the exhaust gases from the combustor.

25. A system according to claim 19 , wherein the expander is a first expander and that the system comprises a second expander arranged to receive and expand exhaust gases.

26. A system according to claim 1 , wherein the system comprises a crankshaft, and that the at least one combustor comprises a piston arranged to reciprocate in a cylinder, and to drive the crankshaft.

27. A system awarding to claim 1 , wherein the compressor is a piston compressor.

28. A system according to claim 1 , wherein the system comprises a crankshaft and that the compressor is arranged to be driven by the crankshaft.

29. A system according to claim 1 , wherein the expander is a piston expander.

30. A system according to claim 1 , wherein the system comprises a crankshaft, and that the expander is arranged to drive the crankshaft with the extracted energy.

31. A vehicle provided with an internal combustion engine system according to claim 1 .

Assignees

• Volvo Truck Corp

Inventors

• Andersson Lennart
• Andersson Arne
• Johansson Bengt
• Lam Nhut
• Lundgren Staffan

Classifications

• Y02T10/12

  Improving ICE efficiencies · CPC title

• Y02A50/20

  Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters · CPC title

• F02B33/443

  Heating of charging air, e.g. for facilitating the starting · CPC title

• F02B37/105

  exhaust drive and pump being both connected through gearing to engine-driven shaft · CPC title

• F01N3/2066

  Selective catalytic reduction [SCR] · CPC title