Redesigned Cylinder Head and Pistons Top Enables the 2016 Toyota Prius to Generate 40% Thermal Efficiency, More Details

Even before it officially rolls out to the retail markets later this year, the gasoline engine of the 2016 Toyota Prius has already made impressive record during its ongoing testing.

Apparently, the next generation Toyota Prius engine achieved a 40% thermal efficiency as recorded by Nikkei Technology. The Japanese carmaker proudly announced the record feat at the Spring Conference of the Society of Automotive Engineers held last week in Yokohama, Japan, reports Gas2.

Thermal efficiency is the energy created by burning gasoline and translates it into power to move the car forward. On the average cars run by gasoline engines are 30% thermal efficient while vehicles powered by diesel engines have 35% thermal efficiency.

Previous Toyota Prius models have a rated thermal efficiency of 37% and the 2016 edition of the hybrid vehicle is rated at 38.5%.

However, during the test run and recording made by Nikkei Technology, the 2016 Toyota Prius surprisingly posted a 40% thermal efficiency. Although it is a small change, the rating is significant because it could represent big miles per gallons fuel savings for buyers.

The work of the engineers

The breakthrough achievement made by the 2016 Toyota Prius in thermal efficiency was actually the handiwork of the Toyota engineers.

The engineers certainly worked hard to make the Prius engine the most efficient production engine by increasing the amount of exhaust gas recirculation from 21% from the current Prius to the 28% in the engine of the 2016 edition.

They also had to increase the combustion speed of the fuel and air mixture inside the combustion chamber.

To obtain the groundbreaking feat on thermal efficiency, the Toyota engineers had to redesign the cylinder head and the top of the pistons of the 2016 Toyota Prius. The changes made it difficult to ignite the mixture so the Japanese carmaker offset it by increasing the electrical energy delivered to the spark plugs from 35 millijoules to 100 millijoules.

Development of the 2016 Toyota Prius has already been delayed a couple of times due to design and technical issues. Toyota has ordered some changes on the design of the hybrid to appeal to younger drivers.

 

Groundbreaking fuel efficiency

The 2016 Toyota Prius is brining superior fuel economy to the table when its redesign is complete and is officially made available to the motoring retail market sometime in the latter part of this year.

With a groundbreaking 55 miles per gallon fuel efficiency rating, Toyota’ gas-electric vehicle will continue to build on its being an icon among hybrid vehicles when its 2016 edition officially rolls out.

2016 toyota prius

In addition to its excellent fuel economy, the 2016 Toyota Prius shall reportedly feature a huge backseat, a spacious cargo area, as well as several high-tech features and options.

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