SYSTEMS AND METHODS FOR CONTROLLING A COMBUSTION ENGINE

摘要

Some implementations of a system for controlling an internal combustion engine (e.g., a natural gas fired internal combustion engine or another type of engine) can include an air-fuel ratio controller that is configured to monitor sensor feedback from an exhaust path and to thereafter automatically adjust the air-fuel mixture. The system can be employed in particular methods to control emissions from the engine, for example, by reducing pollutants emitted as components of the exhaust from the engine.

主权项

1. A system for controlling a combustion engine, comprising:
a natural gas fired or propane fired internal combustion engine configured to be maintained at a stationary site during operation; a catalyst reaction device mounted along an exhaust path of the engine, the catalyst reaction device be configured to reduce an amount of pollutants emitted from an exhaust outlet; a post-catalyst exhaust sensor arranged along the exhaust path after the catalyst reaction device and before the exhaust outlet; and an air-fuel ratio controller configured to control an air-fuel mixture input into the engine, the air-fuel ratio controller being communicatively connected to the post-catalyst exhaust sensor, wherein the air-fuel ratio controller automatically adjusts the air-fuel mixture input into the engine in response to a signal received from the post-catalyst exhaust sensor.