Featuring innovative Stop & Start technology, the 1.33 litre petrol engine is equipped with Dual Variable Valve Timing - intelligent (VVT - i) and a high compression ratio of 11.5:1, which increases
the thermal efficiency of the engine.
Test results showed that in 100 kph (62 miles / hour) constant - speed driving, the use of the Rankine cycle improved
the thermal efficiency of the engine by 3.8 %.
Not exact matches
In a study published in EPJ D, Kai - Wei Sun and colleagues from Beihang University, Beijing, China, show methods for controlling the output power and
efficiency of a quantum
thermal engine based on the two - atom cavity.
Professor Ken Naitoh
of Waseda University's Faculty
of Science and Engineering (Department
of Applied Mechanics and Aerospace Engineering, School
of Fundamental Science and Engineering) and his associates have discovered a revolutionary energy conversion principle (new compressive combustion principle) able to yield stand - alone
engines with double or higher the
thermal efficiency potential
of conventional
engines, independent
of their size.
The maximum
thermal efficiency of present - day gasoline
engines for automobiles is on the order
of 30 %, believed to fall to a level as low as 15 % in states from idling to low - speed city driving.
Therefore, if automobiles could be equipped with «low - cost, ultimate -
efficiency engines,» reaching a stand - alone
thermal efficiency of 60 % or higher over a wide range
of driving conditions, it is believed that a substantial fuel consumption superior to that
of current hybrid system automobiles could be a reality.
A new 2.5 - liter direct - injection inline four - cylinder
engine, made to align with the Toyota New Global Architecture, has a
thermal efficiency of 40 percent inside gasoline vehicles and 41 percent in hybrid vehicles.
For the # 16,430 SEAT it's a diesel's high
thermal efficiency, allowing an official 61.4 «combined» mpg and 123g / km (diesel produces more CO2 per volume unit burnt than petrol does), while for the # 20,660 Volkswagen it's the use
of forced induction on a downsized
engine resulting in official figures
of 42.8 mpg and 154g / km.
Nissan took its VK56DE V - 8 and designed new pistons, new heads, and a new exhaust; added a multicontrol valve to manage the
engine's
thermal efficiency better than a traditional thermostat; and included direct injection to improve the happy triumvirate
of power,
efficiency, and emissions.
To do that, hybrid - vehicle engineers have identified two crucial areas for development: increasing the
efficiency of electric drives and optimizing the
thermal efficiency of heat
engines.
Let's start with some context: the conventional gasoline
engine we are so used to has a
thermal efficiency of around 30 %.
Rumors also suggest that the new
engine dimensions
of the 16x will have increased stroke and reduced rotor width for improved
thermal efficiency and more torque.
The mods allow Toyota to boast
of raising the
engine's
thermal efficiency (the amount
of the fuel's energy it converts to power) to a class - leading 37 percent.
It features improved batteries with higher energy density; smaller electric motors, with higher power density than the previous Prius motors; and the gasoline
engine features a
thermal efficiency greater than 40 % (that
of the third - generation Prius is 38.5 %).
The IONIQ Hybrid and IONIQ Plug - in both feature the new Kappa 1.6 GDI, direct injection petrol, four - cylinder
engine with a class - leading
thermal efficiency of 40 percent, delivering 105 PS and 147 Nm
of torque.
Engineers focused on improving
thermal efficiency and reducing friction
of the
engine's internal moving parts, especially during warm - up — the time when an
engine emits higher levels
of CO2 and other pollutants.
The new sports car generation makes its debut in the classic Porsche pairing
of Boxster and Boxster S. Both models are powered by flat - six
engines with direct petrol injection, the
efficiency of which is further enhanced by electrical system recuperation,
thermal management and start / stop function.
The Japanese automaker calls them Dynamic Force
Engines — one is designated for conventional use, the other for hybrids — and they achieve a
thermal efficiency of 40 and 41 percent, respectively.
The enhanced
engine achieves a maximum
thermal efficiency of 38.5 %, realizing both high fuel
efficiency and high output.
The 1.8 VVT - i Atkinson petrol
engine used is one
of the most efficient around in terms
of thermal efficiency.
The IONIQ Hybrid and IONIQ Plug - in both feature the new Kappa 1.6 GDI, direct injection petrol, four - cylinder
engine with a class - leading
thermal efficiency of 40 per cent delivering 105 PS and 147 Nm
of torque.
The new 1 - litre K10C petrol
engine has greater
thermal efficiency than the K10B used in other models because
of a higher compression ratio (12.0:1 instead
of 11.0:1), dual fuel - injection and friction reduction.
Due to the unique crankshaft design
of the Atkinson, its expansion ratio can differ from its compression ratio and, with a power stroke longer than its compression stroke, the
engine can achieve greater
thermal efficiency than a traditional piston
engine.
The 2018 Accord Hybrid is powered by the third generation
of Honda's innovative two - motor hybrid powertrain, which pairs a 2.0 - liter DOHC i - VTEC ® Atkinson - cycle inline - 4
engine with 40 - percent
thermal efficiency to an electric propulsion motor that churns out 232 lb. - ft.
With the advanced combustion techniques
of Smart Stream
engines, Hyundai Motor Group aims to maximize
thermal efficiency by up to 50 % in the future.
The Ioniq hybrid powertrain consists
of a new Kappa 1.6 direct - injected Atkinson - cycle four - cylinder
engine with a
thermal efficiency of 40 %, delivering an estimated 105 horsepower (78 kW) and an estimated 109 lb - ft (148 N · m)
of torque.
The
thermal efficiency of the combustion
engine with electric turbocharger (MGU - H) in conjunction with the electric motor on the crankshaft (MGU - K) will be more than 40 %.
With its long - stroke and high compression ratio, multi-hole direct fuel injectors, variable cooling system and the latest version
of Toyota's Variable Valve - Timing - intelligent Electric (VVT - iE), this high - output powerplant takes the gasoline - powered internal combustion
engine to a new level with world - leading
thermal efficiency of 40 %.
Advanced technologies, including high - speed combustion, multi-hole direct fuel injectors, a continuously variable capacity oil pump, a variable cooling system and VVT - iE intelligent variable valve - timing on the intake side give the
engine maximum
thermal efficiency of around 40 percent — an exceptional number for a passenger vehicle
engine.
Up front, a new 2.0 - liter, Atkinson - cycle four - cylinder
engine provides 143 horsepower and 129 pound - feet
of torque, delivering an incredible 40 percent
thermal efficiency.
The
engine utilizes high - speed combustion technology and a variable control system for greater
thermal efficiency output, which reduces energy losses associated with exhaust and cooling systems and the movement
of mechanical parts, among other factors.
The Ioniq Hybrid and Ioniq Plug - in Hybrid both feature a new Kappa 1.6 direct - injected Atkinson - cycle four - cylinder
engine with a
thermal efficiency of 40 %, delivering an estimated 104 horsepower (78 kW) and an estimated 109 lb - ft (148 N · m)
of torque.
The IONIQ Hybrid and IONIQ Plug - in both feature the new Kappa 1.6 GDI, gasoline direct injection, four - cylinder
engine featuring a
thermal efficiency of 40 % and 104 hp (77 kW) and 147 N · m (57 lb - ft)
of torque.
More specifically, the 2.0 - liter i - VTEC inline - four running on the Atkinson cycle offers 214 g / kwh
of 87 - octane gasoline, which is the highest
thermal efficiency of any mass produced
engine Honda has seen.
Dr. Draeger explained that the
efficiency of the N37
engine comes from its capacity - to - surface - area ratio, which he describes as being better than any existing BMW
engine for
thermal performance.
This mid-sizer's 2.5 - litre four - cylinder gasoline
engine was modified to run on the Atkinson cycle, which keeps the intake valves open longer for better
thermal efficiency, making a modest 156 horsepower and 136 lb - ft
of torque.
All
of these
engines make use
of important technologies from the brand's modular
efficiency platform — the start - stop system, the energy recovery system, and the innovative
thermal management concept.
Each
of these three
engines also makes use
of technologies from the brand's modular
efficiency platform — the innovative
thermal management concept, the start - stop system, and the energy recovery system.
At launch, the new A3 will be available with one TDI and two TFSI
engines, all
of which incorporate many
efficiency technologies — direct injection, turbocharging, innovative
thermal management and the start - stop system.
The result is a maximum
thermal efficiency of around 40 % — currently a best - in - class level for a passenger vehicle
engine.
The Ioniq Plug - in Hybrid features a Kappa 1.6 L direct - injected Atkinson - cycle four - cylinder
engine with a
thermal efficiency of 40 % and delivers an estimated 104 horsepower and an estimated 109 lb - ft (148 N · m)
of torque.
Powering the new Prius is a reengineered 97 hp / 142 Nm 1.8 litre Atkinson - cycle VVT - i petrol four - pot — now the most efficient internal combustion
engine in the world, with maximum
thermal efficiency figure
of 40 % — mated to a pair
of 71 hp / 163 Nm electric motors that are now smaller and lighter than before.
With a 40 - percent
thermal efficiency (41 percent for hybrids), the 2.5 - liter 4 - cylinder Dynamic Force
Engine is the ideal powerplant for the all - new RAV4 to meet the demand
of providing a highly responsive, yet fuel efficient driving experience.
It also claims better fuel
efficiency than with the outgoing
engine of the same displacement — and phenomenal 40 percent
thermal efficiency.
With its pair
of turbochargers mounted between the vee, the
engine is more compact, (according to BMW) focusing its weight distribution in relation to the front wheels and improving
thermal efficiency.
The Otto
engine (internal combustion four stroke
engine often found in motor vehicles) has a
thermal efficiency (on the test bed)
of about 25 - 40 % depending on the compression ratio - this can be improved somewhat by turbocharging.
Heat also exacerbates climate impacts by reducing the
efficiency of thermal power generators, combustion
engines and even the operation
of solar photovoltaic (PV) panels.