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Concept: Honda RD Developing Variable Compression Ratio Engine with Dual Piston Mechanism

Green Car Congress

APRIL 22, 2009

[Separately, Honda engineers are making a number of HCCI presentations at the SAE 2009 World Congress, including the development of mechanisms to expand the HCCI operational range.]. Mpa (8 bar) and the oil flow rate is 3L/min. For the study, Honda installed a small pump separate from that of engine lubricating oil pump.

Honda

Honda Concept Engine Downsizing

Australian Cam-Drive Gasoline Engine Reaches 39.5% Efficiency in Independent Testing; Potential for Production Engine in China

Green Car Congress

JUNE 6, 2009

The bearings are mounted on the underside of the two inter-connected pistons, which maintain the desired bearing-to-trilobe clearance throughout the stroke. The counter rotation is performed by a reverse gear set at a 1:3 ratio shaft providing two strokes of a piston to 360 degrees of output shaft rotation—the same as a conventional engine.

Engine

Engine Gasoline Production China

EV Driven

Concept: Honda RD Developing Variable Compression Ratio Engine with Dual Piston Mechanism

Australian Cam-Drive Gasoline Engine Reaches 39.5% Efficiency in Independent Testing; Potential for Production Engine in China

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