BirthME, Doulas

The piston make two complete passes in the cylinder to complete one operating cycle.

“Instead of disposing of it through the radiator, we want to do something useful with it.”In a nutshell, the Dearman engine is fuelled by either liquid air or liquid nitrogen, stored in a tank on the bus. Four Stroke Cycle Engines. ‘After we realised we could use it for cooling, things just snowballed.”What Dearman’s technology could do for the developing world. In doing so, he unleashed a coming revolution that has the potential to save millions of lives.

Gardiners NMC has sold its Epsom operation to a four-strong team of coach industry figures. The gas that drives a Dearman Engine is literally thin air.It’s hard to think of air as a liquid, but like most substances, air can exist as a gas, a liquid or a solid, if you compress and cool it enough. They will use it as the basis of a... routeone magazine is the indispensable resource for professional UK bus and coach operators. And It’s not an idea that immediately makes sense to most of us. What’s more, it will return to its gaseous state almost instantly if you open a valve on a tank of the stuff.Peter realised an air engine would never fully compete with its fossil fuel counterpart on power, but he knew he could raise its power to useful levels – creating a cheap-to-run and completely clean engine that could do useful work. You can use it to resolve a conflict or make a request in a respectful and effective way that maintains a relationship.DEAR MAN Because it turns out that Peter Dearman’s antifreeze brainwave has another, potentially world-changing application. It uses heat to expand a gas (known as a working fluid), which drives a piston. He lives in London and is an adviser to (among others) The Atlas of the Future, The Virgin Earth Challenge, and Civilised Bank.It started in a shed. The ability to minimise waste delivers a massive economic dividend.And, while today that cooling and energy could possibly be provided more cheaply using a diesel generator, a new ‘cold economy’ that, at scale, will challenge the cost of fossil-fuel-powered alternatives and come with three key advantages that are hard to compete with.

In compliance with Organic Law 15/1999, of 13 of December, on Personal Data Protection, and the development of Rules of Procedure, approved by Royal Decree 1720/2007, of 21 of December, Atlas of the Future subscribers may be required to provide Personal Data, which will be included in a file owned by Democratising The Future Society SL. Mr. Dearman the inventor, has proofed his machine in London and Leed Universities and they confirmed that the engine can be used in a lot of different application and become more …

But our intuition is misleading. Tim Deakin looks at the concept. Dearman engines emit nothing but clean air. A four-stroke cycle engine is an internal combustion engine that utilizes four distinct piston strokes (intake, compression, power, and exhaust) to complete one operating cycle. While the revolutionary Dearman engine doesn’t quite manage that, it’s likely to be as close as it will be possible to get – and one will be in a bus next year. It started in a shed.
The UK’s bus manufacturers […] The first is that liquid air is a fuel source that every nation can make for itself. Global technology firm Dearman, backed by public body Innovate UK and in partnership with Air Products and the MIRA proving ground, is in the process of unveiling something which may change that.There is plenty of heat for the simple Dearman engine to recover and put to good use. Like a flywheel, it allows the diesel engine to play a lesser part in propelling the bus.A central electronic control unit (ECU) is part of the set-up. Air turns into a liquid at minus 300 degrees. Oil must be changed periodically, while the heat exchanger fluid level should be monitored.Although its concept is uncharted territory for the bus industry, Mr Ayres accepts that the Dearman engine’s durability must match that of a diesel unit’s.“Both engines share many wear characteristics but ours is without temperature swings.

Another benefit of the Dearman system over a traditional diesel engine is that it is functionally better. The manufacturer envisages a need for between 40-60kW of power, depending on the size of the bus.It is simpler than an internal combustion engine, says Mr Ayres, requiring no cooling system of its own. The David Urquhart Travel brand and customer database has been purchased by Alfa Leisureplex group. It has purchased a single-decker which will be used for testing at MIRA, expected to begin around the turn of the year.“We have not yet arrived at the final design because we have developed the second generation of our smaller engine recently, and we want to ensure that all lessons from that are incorporated into the bus application,” says Mr Ayres.“Our strategy is to bring the technology to the point where OEMs can confidently offer it to buyers in a new build.