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A team from Universita degli Studi di Pisa (Italy) and Rolf Reitz at the University of Wisconsin-Madison are proposing a novel combustion concept—Homogenous Charge Progressive Combustion (HCPC)—based on a split-cycle principle to control HCCI combustion in diesel-fueledengines. HCPC Combustor and Compressor.
The engine is designed for use in light-duty vehicles, and demonstrates the potential of modifying passenger vehicle engines to achieve diesel-like fuel efficiency and power using CNG as an alternative fuel. This engine demonstrates a potential near-term solution. —Gary Rogers, FEV, Inc. Resources.
Rendering of the Ilmor 5-stroke conceptengine. Ilmor Engineering will present a new cutaway version of the Ilmor 5-stroke conceptengine at the upcoming Engine EXPO 2009, 16-18 June, in Stuttgart, Germany. The 5-stroke conceptengine is a self-funded proof of concept. Click to enlarge.
The OP4 light-duty opposed-piston diesel. Achates Power, which is developing a family of two-stroke, compression-ignition (CI) opposed-piston (OP) engines, has designed and is developing a light-duty dieselconceptengine, the OP4. cycle-average fuel consumption advantage. Click to enlarge. Click to enlarge.
Since internal combustion engines will remain the primary mode of choice for mobility in the foreseeable future, both alternative (renewable) fuels and high-performance combustion concepts/ engines using fuels adapted for that purpose will be preferred for reducing the combustion impact on climate change.
OCI) and MAN Energy Solutions (MAN) to develop methanol and ammonia as marine fuels to support industry-wide decarbonization and environmental preservation efforts. Also, EPS will construct newbuild vessels with MAN engines powered by the same two alternative marine fuels.
Motiv Engines, LLC introduced the second-generation of its engineconcept dubbed the MkII Clarke-Brayton Engine, which it intends to develop into a heavy-duty on-highway enginefueled by liquid natural gas (LNG). John Clarke presentation at Engine Stretch Efficiency Colloquium, 2010. and O’Malley, E.
The family of engines strategy uses a common power cylinder system across several different engine variants to address a range of power and torque requirements in order to serve multiple military vehicles with a common architecture.
million from the Department of Energy’s ARPA-E program ( earlier post ) to complete its prototype development of a new gasoline-fueled wave disc engine and electricity generator that promises to be five times more efficient than traditional auto engines in electricity production, 20% lighter, and 30% cheaper to manufacture.
have completed a final set of manufacturing drawings for the RadMax DieselEngine, and have released them competitive bid. The companies are developing an improved axial vane type rotary engine known as the RadMax. The engine has a compression ratio of 20:1, which lets it burn a variety of fuels, including diesel.
Isuzu D201 35 hp dieselengine (left) and the LiquidPiston 40 hp X2 Prototype (right). HEHC is an improved thermodynamic cycle optimized for fuel efficiency that combines features of four existing cycles: High air compression ratio (Diesel). HEHC thermodynamic advantages relative to the diesel and the Otto cycles.
Researchers at ETH Zürich, with partners Robert Bosch GmbH, Wenko Swissauto and the Swiss Federal Office of Energy are developing a downsized and supercharged hybrid pneumatic engine that they say can deliver a fuel consumption reduction of more than 30% compared to a standard engine with the same rated power. Earlier post.).
DOE also announced up to $35 million to advance fuel cell and hydrogen technologies, including enabling the early adoption of fuel cell applications, such as light duty fuel cell electric vehicles. Increased efficiency may be achieved using one or more proposed enabling technologies on a baseline engine. turbomachinery.
In its chapter, Ricardo considered a number of potential roles for liquid air considered in which the air is used as a heat sink and then as a working fluid within a heat engine. The heat engine can be deployed as either the prime mover or in a supporting role to recover waste heat from a conventional engine or fuel cell.
HCCI is a combustion regime in which well-mixed fuel, exhaust gas and air are compressed to the point of auto-ignition. Unlike a spark ignition gas engine or dieselengine, HCCI produces a low-temperature, flameless release of energy throughout the entire combustion chamber. Ignition occurs via the sparkplugs.
The prototype is of the naturally-aspirated Split Cycle gasoline engine, and is intended to be a proof of the basic technology of the split cycle with firing after Top Dead Center (one of the key attributes of the engine and cycle). As a result, Scuderi said, combustion is four times faster than in a conventional engine.
The only entry criteria for innovations are that they reduce CO 2 emissions from passenger cars; could be commercially deployed in 3–5 years; are on-vehicle, and; are compatible or could be easily integrated into the existing transport, energy and fuel infrastructures. The Exhaust port is located on the outer side of the engine block.
At NACV 2017, Bosch is also showcasing several future-focused powertrain conceptsengineered to save fuel and money while extending the lives of fleets. To further reduce fuel consumption, the eCity Truck platform can also integrate 48-volt technology. Control unit.
High-pressure air jet controlled compression ignition (JCCI) is based on a compound thermodynamic cycle and is implemented in a hybrid pneumatic engine (HPE) as proposed by Schechter in 1999. The application of HPE is also beneficial to the fuel consumption and emissions because of its several flexible operation modes.
Ilmor Engineering will present a new cutaway version of the Ilmor five-stroke conceptengine at the show. Ilmor, based in the UK, has traditionally focused on racing engines, but now as a member of the UK Low Carbon Vehicle Partnership its business is becoming increasingly diverse.
It is being unveiled as a one litre petrol unit and it is expected to produce around 80 per cent fewer toxins than a typical internal combustion engine. Unlike conventional engines, the Scuderi engine relies on just one crankshaft revolution and the engine is capable of producing more torque than conventional petrol and diesel variants.
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