The piston engine has been redesigned and it’s keeping up with the hybrids for energy efficiency.

Namikoshi Electronics have designed a new type of piston engine – the 4 in 1 piston engine which they claim is as energy efficient as a modern hybrid engine. It looks like a a mini-revolution, the uptake of alternative fuels for vehicles has been relatively slow but a increase in efficiency of petrol engine could ease the the pressure on the environment whist we adjust the infrastructure and our mindsets to a make them commonplace. 4 1 engine, efficient The engine is laid out in a similar way to an opposing 4-cylinder engine – rarely seen since the golden age of the VW bug, but rather than pistons connect in line to a crankshaft this engine has a central unit with external rods and a planetary gear so the rods can move back and forth in parallel (as opposed to previously around in concentric circles) this has dramatically increased the efficiency by reducing friction, wasted horizontal motion and vibrations.

Written by TreeThinker

Passionate about the Earth and those who inhabit it. An engineer (BEng (Hons), MSEE) from Oxfordshire, UK, specialising in designing for a sustainable future. A member of the Society of Environmental Engineers and a keen environmental advocate who volunteers for several grass roots sustainability groups. I work full time as a project manager for a renewable energy company based in Oxford and also run ‘TreeThinker’ (; converting previous pasture land into a rich permaculture farm growing produce for sale locally. I deliver workshops on sustainable living, including building renewable energy technologies, as well as workshops for schools discussing 'Energy as a resource' amongst other topics. I am qualified in ‘Information, advice and guidance’ (level 4) and experienced at teaching practical skills. I'm also a keen cyclist and have a love of wordplay - writing a blog on etymology (

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s