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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-fueled engines. —Musu et al. Tamagna, D.,
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 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. FEV developed ATAC more than a decade ago, targeting large-bore engines in stationary and heavy-duty applications.
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. DieselEngines Fuel Efficiency' Click to enlarge. kW, compared to 4.1
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.
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 engine fueled by liquid natural gas (LNG). John Clarke presentation at Engine Stretch Efficiency Colloquium, 2010. and O’Malley, E.
Wave rotor technology has been explored since 1906, although its first significant application was in 1940 by Brown Boveri Company (BBC, today ABB) which used it as a high pressure stage for a gas turbine locomotive engine. Mazda produced 150,000 Comprex diesel cars.
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.
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.
Detailed modeling of this approach undertaken through the Technology Strategy Board-funded “CoolR” project has suggested that efficiencies of more than 60% are possible, compared to around 40% for current dieselengines. Compressed Air EnginesConceptEnginesEngines'
Unlike a spark ignition gas engine or dieselengine, HCCI produces a low-temperature, flameless release of energy throughout the entire combustion chamber. HCCI combustion can deliver a very efficient engine, potentially providing a 20% to 30% boost in gasoline engine efficiency without the NO x or PM emissions of a diesel.
The technology to retrofit a vessel to accept methanol as a fuel is available today and the intention is for OCI to charter the first retrofitted methanol-fueled vessel operated by EPS using already in-service MAN engines and technology in the next two years. A small pilot injection from the diesel fuel system ignites the methanol.
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). Tags: ConceptEngines. Sal Scuderi. Earlier post.).
Rotor 1, Rotor 2 and the connecting cam form the total internal mechanism of the engine. The Exhaust port is located on the outer side of the engine block. The engine, according to the company, does not have a traditional Otto or Diesel cycle. Overview of the Libralato Engine. Libralato Engine Technical Summary.
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.
At NACV 2017, Bosch is also showcasing several future-focused powertrain conceptsengineered to save fuel and money while extending the lives of fleets.
Although the HPE approach can in concept be applied to both spark ignition (SI) and compression ignition engines (CI), after an evaluation of engine types, the team decided that downsized SI engines offered the best target for an HPE application. The conceptengine uses the Bosch electro-hydraulic valve system (EHVS).
The objective of this AOI is to research, develop, and demonstrate cost-competitive enabling technologies for Class 8 truck engine systems that can enable the achievement of breakthrough Brake Thermal Efficiency (BTE) using EPA certified diesel fuels while meeting the latest emission standards. turbomachinery.
However, the control of combustion phasing is one of the crucial issues in determining whether the diesel PCCI engine could be commercialized or not. The utilization of compressed air power on engine cool starts and low-load conditions could significantly reduce the overall emissions. … —Meng et al.
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.
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. Currently the engine prototype is undergoing testing and analysis in San Antonio, Texas.
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