Water separation device for engine exhaust gas

Patent metadata

Field	Value
Publication number	US-10337370-B2
Application number	US-201715648748-A
Country	US
Kind code	B2
Filing date	Jul 13, 2017
Priority date	Jul 13, 2017
Publication date	Jul 2, 2019
Grant date	Jul 2, 2019

Abstract

A system includes an engine and an exhaust conduit in communication with the engine. A water separation device has exhaust gas passageways in communication with the exhaust conduit. The water separation device has a substrate and a membrane on the substrate. The substrate is monolithic and extends around the exhaust gas passageways. The membrane is between the exhaust gas passageways and the substrate and has capillary condensation pores extending from the exhaust gas passageways to the substrate.

First claim

What is claimed is:

1. A system comprising:
an engine;
an exhaust conduit in communication with the engine; and
a water separation device having exhaust gas passageways in communication with the exhaust conduit;
the water separation device having a substrate and a membrane on the substrate, the substrate being monolithic and extending around the exhaust gas passageways, and the membrane being between the exhaust gas passageways and the substrate and having capillary condensation pores extending from the exhaust gas passageways to the substrate;
wherein the substrate includes an outer wall surrounding the exhaust gas passageways, and the water separation device includes a casing surrounding the outer wall and defining a water collection space between the casing and the outer wall, the water collection space being separated from the exhaust gas passageways by the substrate.

2. The system of claim 1 , wherein the substrate and membrane have a surface area to volume ratio greater than 5 cm−1.

3. The system of claim 1 , wherein the material of at least one of the substrate and the membrane has a thermal conductivity greater than 60 W/m-K between 0° C. and 100° C.

4. The system of claim 1 , further comprising a vacuum source in communication with the water collection space.

5. The system of claim 1 , further comprising a pressure source in communication with the water collection space.

6. The system of claim 1 , wherein the outer wall is elongated along an axis, and wherein the exhaust gas passageways are each elongated along the axis.

7. The system of claim 1 , further comprising a cooling system, wherein the water separation device includes a housing surrounding the casing, the housing defining a coolant path between the housing and the casing, the coolant path being in fluid communication with the cooling system.

8. The system of claim 7 , wherein the cooling system is in fluid communication with the engine.

9. The system of claim 1 , further comprising an intake conduit in communication with the engine, and an exhaust gas recirculation circuit extending from the exhaust conduit to the intake conduit, wherein the water separation device is disposed along the exhaust gas recirculation circuit.

10. The system of claim 9 , wherein the exhaust gas recirculation circuit includes an exhaust gas cooler, and the water separation device is disposed in the exhaust gas recirculation circuit between the exhaust gas cooler and the intake conduit.

11. The system of claim 1 , further comprising an intake conduit in communication with the engine, a compressor in communication with the intake conduit, and a water injection circuit in communication with the water separation device and the engine.

12. The system of claim 11 , wherein the water injection circuit includes a water pump.

13. The system of claim 1 , further comprising an intake conduit in communication with the engine, an exhaust gas recirculation circuit extending from the exhaust to the intake conduit, a compressor in communication with the intake conduit, and a charge air cooler between the compressor and the engine, the water separation device being in communication with the intake conduit between the charge air cooler and the engine.

14. The system of claim 1 , further comprising a catalytic converter in the exhaust gas conduit between the water separation device and the engine, and a cooling system in communication with the engine, the cooling system including a cooling circuit in communication with the water separation device.

15. The system of claim 1 , further comprising a cooling system in communication with the engine, the cooling system including a cooling circuit in communication with the water separation device.

16. The system of claim 1 , further comprising a reservoir in communication with the water separation device, and a filter between the water separation device and the reservoir.

17. The system of claim 1 , wherein the substrate includes metal carbide.

18. The system of claim 1 , wherein the substrate is porous.

19. The system of claim 1 , wherein the membrane includes metal oxide.

Assignees

• Tenneco Automotive Operating Co Inc

Inventors

• Bradford Michael C

Classifications

• F02B29/04

  Cooling of air intake supply · CPC title

• F01N3/02

  for cooling, or for removing solid constituents of, exhaust (by means of electric or electrostatic separators F01N3/01 {; mixing air with exhaust in tailpipes F01N13/082, F01N13/20}) · CPC title

• F01P3/20

  Cooling circuits not specific to a single part of engine or machine (F01P3/22 takes precedence) · CPC title

• F01N13/08

  Other arrangements or adaptations of exhaust conduits {(pipes, joints or supports therefor in general F16L; collecting or removing exhaust gases of vehicle engines in workshops B08B15/00, on highways E01C1/005)} · CPC title

• B01D71/025

  Aluminium oxide · CPC title