Engineers work on car engine redesign

May 31, 2007

U.S. engineers have created the first computational model to track engine performance from one combustion cycle to the next for a new type of engine.

"We're talking about a major leap in engine technology that could be used in hybrid cars to make vehicles much more environmentally friendly and fuel stingy," said Purdue University Assistant Professor Gregory Shaver.

A key portion of the research, said Shaver, involves designing engines in which intake and exhaust valves are no longer driven by mechanisms connected to the pistons. That's a departure from the way automotive engines have worked for more than a century.

Since the valve timing would no longer be restricted by the pistons' movements, it could be finely tuned to allow more efficient combustion of diesel, gasoline and alternative fuels, such as ethanol and biodiesel, Shaver said.

The concept, known as variable valve actuation, would enable significant improvements in conventional gasoline and diesel engines used in cars and trucks and for applications such as generators, he said.

The research team included graduate students David Snyder, Gayatri Adi and Anup Kulkarni, as well as undergraduate students Armando Indrajuana, Elena Washington, Justin Ervin and Matt Carroll.

Copyright 2007 by United Press International

Explore further: Professor quantifies how 'one thing leads to another'

add to favorites email to friend print save as pdf

Related Stories

In-depth study examines air quality in metro Phoenix

Aug 07, 2014

Air can be considered a great equalizer – we all have to breathe it. Arizona State University faculty member Tom Cahill is interested in adding to our knowledge base of air quality in metropolitan Phoenix, ...

New catalyst converts carbon dioxide to fuel

Jul 30, 2014

Scientists from the University of Illinois at Chicago have synthesized a catalyst that improves their system for converting waste carbon dioxide into syngas, a precursor of gasoline and other energy-rich products, bringing ...

Recommended for you

Freedom and responsibility of science

1 hour ago

Yesterday, the German Research Foundation (DFG) and the Leopoldina National Academy of Sciences presented their recommendations for "The Freedom and Responsibility of Science" in Berlin. Both research organizations appeal ...

Feeling bad at work can be a good thing

5 hours ago

(Phys.org) —Research by the University of Liverpool suggests that, contrary to popular opinion, it can be good to feel bad at work, whilst feeling good in the workplace can also lead to negative outcomes.

3Qs: Citizen journalism in Ferguson

6 hours ago

Tensions have escalated in Ferguson, Missouri, following the Aug. 9 shooting death of Michael Brown, an unarmed African-American teenager, by a white police officer. The incident has led to peaceful protests ...

User comments : 0