Green Car Congress

MAY 23, 2009

The HPE was long thought to be a system in which all engine valves had to be actuated in a fully variable manner to allow for two-stoke pneumatic modes and still enable the four-stroke combustion mode. In large naturally-aspirated SI engine, high-friction, pumping losses and part-load operation all contribute to poor fuel efficiency.

Downsizing 170

Downsizing Concept Engine Hybrid 170

Green Car Congress

OCTOBER 31, 2009

The wave disc engine, a new implementation of wave rotor technology, was earlier developed by the Michigan State group in collaboration with researchers from the Warsaw Institute of Technology. The wave disc engine is a new implementation of wave rotor technology (also called Pressure Wave Machines or Pressure Exchangers).

Michigan 316

Michigan Engine Universal 2004 316

Green Car Congress

MAY 8, 2014

Motiv Engines, LLC introduced the second-generation of its engine concept dubbed the MkII Clarke-Brayton Engine, which it intends to develop into a heavy-duty on-highway engine fueled by liquid natural gas (LNG). It expands all the way to ambient pressure before the exhaust stroke. Background.

Engine 345

Engine Concept Design Exhaust 345

Green Cars News

MAY 6, 2009

It is believed that when fully developed with its turbo charged and air hybrid components, the engine will achieve significant gains in fuel efficiency - potentially making it the most significant advance since the Otto cycle more than 130 years ago. Currently the engine prototype is undergoing testing and analysis in San Antonio, Texas.

Engine 36

Engine San Antonio Petrol Concept Engine 36

Green Car Congress

MAY 9, 2013

liquid air) Dearman piston engine. Source: Dearman Engine Company. A new new forum for the advocacy and development of liquid air as an alternative technology to harness waste and surplus energy within power and transport—the Liquid Air Energy Network (LAEN)—has formed in the UK. Click to enlarge.

Energy Storage 268

Energy Storage Transportation Energy Waste 268

Green Car Congress

SEPTEMBER 25, 2009

The project will take the Garric design from its current advanced concept stage to development of a fully functional prototype, according to the company. The Garric engine has been to operate on a wide variety of liquid and gaseous fuels. It also directs the spent exhaust gasses out of the torus.

Concept 220

Concept Engine Exhaust Florida 220

Green Car Congress

APRIL 20, 2009

The prototype is of the naturally-aspirated Split Cycle gasoline engine, and is intended to be a proof of the basic technology of the split cycle with firing after Top Dead Center (one of the key attributes of the engine and cycle). The company intends to license its technology to engine manufacturers.

Engine 170

Engine San Antonio Production Concept Engine 170

Green Car Congress

DECEMBER 30, 2015

Researchers at the Dalian University of Technology have proposed a novel method to control premixed charge compression ignition (PCCI) phasing in internal combustion engines in all load operations. It compresses the pressurized gas produced by exhaust gas turbocharger, comprising fresh air and exhaust gas introduced from the EGR valve.

Engine 150

Engine Hybrid Diesel Exhaust 150

Green Car Congress

JUNE 6, 2012

A researcher at the Nanjing University of Science & Technology is proposing a novel opposed-piston free-piston linear generator for use in series hybrid electric vehicles. Secondly, the central combustion chamber is benefit for highly efficient scavenging via intake and exhaust ports without using valves. Click to enlarge.

Design 321

Design West Virginia Hybrid 2012 321