Green Car Congress
SEPTEMBER 8, 2009
Rendering of the Grail Engine. 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 ). Tags: Concept Engines Engines Fuel Efficiency.
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. Click to enlarge. —Musu et al.,
Green Car Congress
MAY 23, 2009
The injection of the additional air during transients can overcome the poor driveability usually associated with heavily downsized and supercharged engines, the team notes. In the pneumatic hybridization scheme, each cylinder is connected via a fully variable charge valve to a shared pressure tank. Dönitz et al. Source: ETH Zürich.
Green Car Congress
OCTOBER 29, 2019
An adaption of cylinder de-activation technique called ECONAMIQ over-expansion can be applied to engines to improve fuel efficiency. Using the pressure from the exhaust gas from the active cylinders, the ‘idle’ cylinders could be expanded to extract more work out of the engine during partial load operation.
Green Car Congress
JANUARY 22, 2015
Increased efficiency may be achieved using one or more proposed enabling technologies on a baseline engine. Engines must be capable of meeting current emission standards and technologies developed must be demonstrated on an engine. turbomachinery. Applications must present a sound business case for the proposed technology.
Green Cars News
MAY 6, 2009
It is being unveiled as a one litre petrol unit and it is expected to produce around 80 per cent fewer toxins than a typical internal combustion engine. The technology divides the four strokes of a conventional combustion cycle over two paired cylinders - one intake/compression cylinder and one power/exhaust cylinder.
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.
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