Green Car Congress

OCTOBER 25, 2010

A team from Universita degli Studi di Pisa (Italy) and Rolf Reitz at the University of Wisconsin-Madison are proposing a novel combustion concept—Homogenous Charge Progressive Combustion (HCPC)—based on a split-cycle principle to control HCCI combustion in diesel-fueled engines. SAE 2010-01-2107. —Musu et al.,

Concept 318

Concept Diesel San Diego 2010 318

Green Car Congress

SEPTEMBER 8, 2009

Grail Engine Technologies , the designer of a two-stroke engine using forced semi-homogeneous charged compression ignition (FS-HCCI) combustion, has adopted the Pulstar pulse plugs from Enerpulse ( earlier post ). HCCI is a combustion regime in which well-mixed fuel, exhaust gas and air are compressed to the point of auto-ignition.

Engine 186

Engine Plug-in Concept Plug 186

Green Car Congress

MAY 8, 2014

It expands all the way to ambient pressure before the exhaust stroke. The power is produced in almost a 50-50 split between the combustion (central) and exhaust (largest) pistons. We have taken what we learned from our first engine and applied it to the new design. This enables a higher power density.

Engine 345

Engine Concept Design Exhaust 345

Green Car Congress

APRIL 20, 2009

The Scuderi Engine is a split-cycle design that divides the four strokes of a conventional combustion cycle over two paired cylinders: one intake/compression cylinder and one power/exhaust cylinder. The Scuderi engine achieves compression ratios in excess of 100:1 in its compression cylinder, Sal Scuderi said.

Engine 170

Engine San Antonio Production Concept Engine 170