Patented airflow system decreases pollutants from large piston engines

Feb 13, 2014
This is a figure of the air control system from the patent paperwork. Credit: Kansas State University

A patent was recently issued to Kansas State University for a system that controls the airflow to pistons in reciprocating internal combustion engines—engines powered by pistons.

The system enables large-bore, multi-cylinder engines used in trains, pipelines, backup diesel generators and other fields to run efficiently while producing lower levels of than they do currently.

The patent, "Active Air Control," was issued to the Kansas State University Research Foundation, a nonprofit corporation responsible for managing technology transfer activities at the university. The is for research by former faculty member Kirby Chapman and doctoral graduate Diana Grauer.

The Kansas State University-developed system uses an airflow sensor to measure and control the airflow rate into each piston in real time. Algorithms adjust the accordingly and equalize the rate in multiple cylinders at the same time. This reduces the levels of nitrogen oxides produced during combustion in the engine.

The air control system offers a low-cost method to control and lower the production of and helps legacy engines meet compliance with EPA 2011 regulations. The system also was designed to fit various engine systems.

Explore further: Alternative energy patent issued to Kansas State University

Related Stories

The efficient choice among combustion engines

Sep 12, 2013

(Phys.org) —Researchers at ETH Zurich have developed an internal combustion engine that emits less than half the CO2 compared to a regular engine without compromising performance. This corresponds to fuel ...

Recommended for you

Hoverbike drone project for air transport takes off

Jul 24, 2014

What happens when you cross a helicopter with a motorbike? The crew at Malloy Aeronautics has been focused on a viable answer and has launched a crowdfunding campaign to support its Hoverbike project, "The ...

Student develops filter for clean water around the world

Jul 23, 2014

Roughly 780 million people around the world have no access to clean drinking water. According to the World Health Organization (WHO), 3.4 million people die from water-related diseases every year. ETH student Jeremy Nussbaumer ...

User comments : 1

Adjust slider to filter visible comments by rank

Display comments: newest first

ormondotvos
not rated yet Feb 14, 2014
Low cost to start, eight sensors and valve actuators to fail later.