Apparatus, system, and method for reducing engine knock
AssigneeCummins IP, Inc.
InventorsJ. Steven Kolhouse, Vivek Sujan, Thomas Yonushonis
Life of this patent
Estimating the term…
Abstract
A system and method for reducing engine knock associated with an internal combustion engine. An exhaust gas recirculation sub-system is fluidly connected to the internal combustion engine and includes a compressor and an exhaust gas storage tank fluidly connected to the compressor. In response to measuring that engine knock is occurring, compressed exhaust gas is injected from the exhaust gas storage tank into a combustion chamber of the internal combustion engine.
Claims23
A system for reducing engine knock, the system comprising:
- an internal combustion engine;
- an exhaust gas recirculation sub-system fluidly connected to the internal combustion engine, the sub-system comprising:
- an exhaust gas compressor, and
- an exhaust gas storage tank fluidly connected to the exhaust gas compressor;
- and
- a controller apparatus in electrical communication with the exhaust gas recirculation sub-system that controls injecting compressed exhaust gas to the internal combustion engine to reduce engine knock.
A controller apparatus for reducing engine knock, the controller apparatus comprising:
- an engine knock module configured to sense engine knock in an internal combustion engine;
- an exhaust gas storing module configured to compress and store exhaust gas;
- and
- an exhaust gas injection module configured to inject compressed exhaust gas into the internal combustion engine when the engine knock module senses engine knock.
A method for reducing engine knock, the method comprising:
- storing exhaust gas in an exhaust gas storage tank;
- sensing when engine knock occurs in an internal combustion engine;
- injecting exhaust gas stored in the exhaust gas storage tank into the internal combustion engine to reduce engine knock.
Dependencies are inferred from the claim text.