Green Car Congress

MAY 23, 2009

Schematic of downsized and supercharged four-stroke hybrid pneumatic spark injection engine. The reduction in fuel consumption is obtained mainly through enabling the effective use of a heavily downsized engine, rather than from regenerative efficiency. The engine has two intake and two exhaust valves per cylinder.

Downsizing 170

Downsizing Concept Engine Hybrid 170

Green Car Congress

APRIL 22, 2009

Engineers from Honda R&D Co., presented a pair of papers at the SAE 2009 World Congress describing the development of a variable compression ratio (VCR) engine enabled by a dual piston mechanism. Kawajiri (2009) Advanced Control System of Variable Compression Ratio (VCR) Engine with Dual Piston Mechanism (SAE 2009-01-1063).

Honda 150

Honda Concept Engine Downsizing 150

Green Car Congress

OCTOBER 29, 2019

Hybrid electric vehicles could especially benefit from this new technology, since the rapid engine warm up and high efficiency cycle that ECONAMIQ offers uses less fuel during power-assisted operation or battery charging.

Fuel 186

Fuel San Jose 2019 Engine 186