Cleaning system for an engine exhaust cooler

Patent metadata

Field	Value
Publication number	US-11846258-B2
Application number	US-202217975327-A
Country	US
Kind code	B2
Filing date	Oct 27, 2022
Priority date	Aug 14, 2019
Publication date	Dec 19, 2023
Grant date	Dec 19, 2023

Abstract

A system and method including one or more conduits, a pump system, and a controller. The conduits are fluidly coupled with a cooling device that is operably coupled with an engine to cool at least a portion of exhaust from the engine. The pump system pumps a cleaning fluid from a cleaning fluid source through the one or more conduits and into a flow path of a portion of the exhaust from the engine while the engine continues to operate. The controller monitors operation of the engine and determines whether the engine is operating in a designated state. The controller controls the pump system to pump the cleaning fluid into the flow path of a portion the exhaust from the engine to clean the cooling device while the engine operates in the designated state and the exhaust flows from the engine and through the cooling device.

First claim

What is claimed is:

1. A system comprising:
one or more conduits configured to be fluidly coupled with a cooling device that is operably coupled with an engine to cool at least a portion of exhaust from the engine;
a pump system configured to pump a cleaning fluid from a cleaning fluid source through the one or more conduits and into a flow path of the at least the portion of the exhaust from the engine while the engine continues to operate; and
a controller configured to monitor operation of the engine and determine whether the engine is operating in a designated state, the controller configured to control the pump system to pump the cleaning fluid into the flow path of the at least the portion of the exhaust from the engine to clean the cooling device while the engine continues to operate in the designated state and the at least the portion of the exhaust flows from the engine and through the cooling device.

2. The system of claim 1 , further comprising one or more valves connected with or disposed in the one or more conduits, the controller configured to control positions of the one or more valves to control flow of the cleaning fluid into the flow path of the at least the portion of the exhaust from the engine.

3. The system of claim 1 , wherein the controller is configured to determine that the engine is operating in the designated state based on a throttle setting of the engine being at or above a designated throttle setting.

4. The system of claim 1 , wherein the controller is configured to determine that the engine is operating in the designated state based on a speed of the engine being at or above a designated speed.

5. The system of claim 1 , wherein the controller is configured to determine that the engine is operating in the designated state based on a pressure of the exhaust from the engine being at or above a designated pressure.

6. The system of claim 1 , wherein the controller is configured to determine that the engine is operating in the designated state based on a temperature of the exhaust from the engine being at or above a designated temperature.

7. The system of claim 1 , wherein the controller is configured to determine an operational effectiveness measure of the cooling device and to control the pump system to pump the cleaning fluid into the flow path of the at least the portion of the exhaust while the engine continues to operate in the designated state and based on the operational effectiveness measure of the cooling device.

8. A method comprising:
cooling at least a portion of an exhaust from an engine using one or more conduits fluidly coupled with a cooling device that is operably coupled with the engine;
pumping a cleaning fluid from a cleaning fluid source through the one or more conduits and into a flow path of the at least the portion of the exhaust from the engine while the engine continues to operate;
monitoring operation of the engine and determining whether the engine is operating in a designated state; and
pumping the cleaning fluid into the flow path of the at least the portion of the exhaust from the engine to clean the cooling device while the engine continues to operate in the designated state and the at least the portion of the exhaust flows from the engine and through the cooling device.

9. The method of claim 8 , further comprising moving one or more valves disposed in the one or more conduits to control flow of the cleaning fluid into the flow path of the at least the portion of the exhaust from the engine.

10. The method of claim 8 , further comprising determining that the engine is operating in the designated state based on a throttle setting of the engine being at or above a designated throttle setting.

11. The method of claim 8 , further comprising determining that the engine is operating in the designated state based on a speed of the engine being at or above a designated speed.

12. The method of claim 8 , further comprising determining that the engine is operating in the designated state based on a pressure of the exhaust from the engine being at or above a designated pressure.

13. The method of claim 8 , further comprising determining that the engine is operating in the designated state based on a temperature of the exhaust from the engine being at or above a designated temperature.

14. The method of claim 8 , further comprising determining an operational effectiveness measure of the cooling device and controlling a pump system to pump the cleaning fluid into the flow path of the at least the portion of the exhaust while the engine continues to operate in the designated state and based on the operational effectiveness measure of the cooling device.

15. A system comprising:
one or more conduits configured to be fluidly coupled with a cooling device that is operably coupled with an engine to cool at least a portion of exhaust from the engine;
a pump system configured to pump a cleaning fluid from a cleaning fluid source through the one or more conduits and into a flow path of the at least the portion of the exhaust from the engine while the engine continues to operate; and
a controller configured to monitor operation of the engine and determine whether one or more of a speed, a power output, or a throttle setting of the engine is operating at or above a designated state, the controller configured to control the pump system to pump the cleaning fluid into the flow path of the at least the portion of the exhaust from the engine to clean the cooling device while the engine continues to operate at or above the designated state and the at least the portion of the exhaust flows from the engine and through the cooling device.

16. The system of claim 15 , further comprising one or more valves connected with or disposed in the one or more conduits, the controller configured to control positions of the one or more valves to control flow of the cleaning fluid into the flow path of the at least the portion of the exhaust from the engine.

17. The system of claim 15 , wherein the controller is configured to determine that the engine is operating at or above the designated state based on the throttle setting of the engine being at or above a designated throttle setting.

18. The system of claim 15 , wherein the controller is configured to determine that the engine is operating at or above the designated state based on the speed of the engine being at or above a designated speed.

19. The system of claim 15 , wherein the controller is configured to determine that the engine is operating at or above the designated state based on a pressure of the exhaust from the engine being at or above a designated pressure.

20. The system of claim 15 , wherein the controller is configured to determine that the engine is operating at or above the designated state based on a temperature of the exhaust from the engine being at or above a designated temperature.

Assignees

• Transp Ip Holdings Llc

Inventors

• Wright David
• Baldwin David
• Iacovetto Justin
• Moore Scott
• Motichka Jody
• Peters Eric David
• Nistler Paul Gerard

Classifications

• F02M26/50 Primary

  Arrangements or methods for preventing or reducing deposits, corrosion or wear caused by impurities (arrangement or layout of EGR passages with means for cleaning or treating the recirculated gases F02M26/35; protection of EGR valves from damage F02M26/74) · CPC title

• B08B9/0321

  using pressurised, pulsating or purging fluid (E04F17/126 takes precedence) · CPC title

• F02B77/04

  Cleaning of, preventing corrosion or erosion in, or preventing unwanted deposits in, combustion engines · CPC title

• F02M26/22 Primary

  with coolers in the recirculation passage · CPC title

• B08B2209/032

  by the mechanical action of a moving fluid · CPC title