Home Transportation Efficient engines

Toyota’s New Engines Improve Fuel Efficiency

52
1
Toyota's New 1.3ℓ Engine is a Boost for Fuel Efficiency
Toyota’s New 1.3ℓ Engine is a Boost for Fuel Efficiency

The internal combustion engine (ICE) may be old tech, finding its roots over a hundred years ago, but it’s certainly not dead. Toyota’s new lineup of engines promise to deliver better fuel efficiency than ever before.

Given rising fuel prices and stricter emissions regulations, it should come as no surprise that automakers are working on improving fuel efficiency. Have automakers tried everything yet? Apparently not, as Toyota’s new lineup of engines seems to break the mold of current engine design.

The problem with fuel efficiency in conventional automobiles is that the ICE is woefully inefficient, averaging less than 30% thermal efficiency. In other words, less than 30% of the available energy in a given fuel comes out of the engine in a usable form, specifically motion. Most of the rest of the energy in the fuel is wasted as heat, basically burning fuel for no reason.

By applying a number of proven technologies, Toyota has raised the bar on fuel efficiency with a new lineup of engines. The first two engines to come out, 1.0 ℓ and 1.3 ℓ four-cylinder engines, use the Atkinson cycle, which is more efficient, but less powerful, than the Otto cycle, used in just about every engine in the world. Combining the more-efficient cycle with variable valve timing on the exhaust and intake and a higher 13.5:1 compression ratio, Toyota can maximize power across the entire speed range, even outside of hybrid applications. To further improve fuel burn, a new tumble-flow design leads to a better air / fuel mixture.

All in all, Toyota’s two new engines are 37% and 38% thermally efficient, a record in mass-production engines. Toyota will roll out the new engine lineup in 2015, fourteen different engines, estimating fuel efficiency improvements of at least 10%.

Image © Toyota

(Visited 66 times, 1 visits today)

1 COMMENT

  1. Primary
    purpose of an IC Engine is to give TORQUE.
    All
    IC Engines produce torque in SINE WAVE. Co sine components of forces acting on
    piston are wasted as heat, noise & vibrations. This is so right since IC
    Engine invention. No one else has so far EVEN POINTED IT OUT.
    I
    have done extensive research on this aspect & have invented TEJJ Constant
    Torque IC Engine which eliminates all co sine component losses. It is Patent
    pending in India. It offers following major advantages:
    1.
    Maximum possible continuous torque (for 4 cylinder engine) like an electric
    motor.
    2.
    Smoother, cooler & quieter engine.
    3.
    Work done per power stroke increases by 55% compared to similar sized exiting
    engines.
    4.
    Considerable fuel savings.
    5.
    Improvement in power & pick up.
    6.
    Reduction of green house gases.
    7.
    Existing 2nd, 3rd, 4th &5th gear ratios can be used for 1st to 4th gear in
    vehicles with TEJJ IC Engine. 5th gear over drive ratio can be suitably
    increased.
    Detailed
    advantages with graphics are available at http://www.patentauction.com/patent.php?nb=7706.
    I
    need some institutional or manufacturers support for developing the idea
    further. It can really bring PARADIGM SHIFT IN ENTIRE INDUSTRY.
    Any one interested can contact me at [email protected] or on my mobile number
    +919424140739.

LEAVE A REPLY

Please enter your comment!
Please enter your name here

This site uses Akismet to reduce spam. Learn how your comment data is processed.