Clean two-stroke engine

Image: Primavis_Engine_Section.jpg

Primavis S.r.l.'s clean two-stroke engine is suitable for propulsion (motorcycles, ATV, small cars, aircraft, industrial, and marine), for auxiliary power units (range extender for electric vehicles and aircraft), and for co-geneneration (combined heat and power). Based on Patent WO/2011/101878, the Primavis solution is related to a two-stroke engine that features high efficiency, high specific power, compact dimensions, low weight, simplicity, low production costs, and low noise and vibration levels. The engine offers one combustion process every crankshaft revolution (modern two-stroke) and air supply realized by an external volumetric pump with balancing function and the possibility of supercharging in combination with a special rotary valve, called CCD (control charge device). It also features a high-pressure direct-fuel-injection system, “four-stroke-like” lubrication system (lubrication oil not mixed with fuel and not burned during the combustion process), liquid cooling, and the possibility of internal exhaust gas recirculation. In addition, it offers the possibility of functioning with several fuels (gasoline, CNG, LPG, and diesel.) More information is available at www.primavis.eu.

.

Share
HTML for Linking to Page
Page URL
Grade
Rate It
4.86 Avg. Rating

Read More Articles On

2014-10-07
Revealed at the 2014 Paris Motor Show, the concept is based on the XL1 but gets performance touches such as the powerful Ducati V2 engine and a racing-inspired chassis.
2014-09-09
The University of California-Davis, and CATARC (China Automotive Technology and Research Center) will cooperate to speed commercialization of plug-in and fuel-cell electric cars in China and the U.S. under an agreement signed Sept. 6 in Tianjin, China.
2014-09-05
Days before Tesla on Sept. 4 announced it has selected Nevada as the state in which it will build a large "Gigafactory' battery plant, Lux Research opined that the savings in lithium-ion battery costs owing to high-volume efficiencies will not be as much as the automaker expects it to be.
2014-09-23
Mercedes-Benz is replacing aluminum pistons with a new generation of high-strength steel in some of its car diesel engines.

Related Items

Training / Education
2010-03-15
Technical Paper / Journal Article
2004-03-08
Technical Paper / Journal Article
2004-03-08
Book
2010-06-17