Results 301 to 310 of about 119,428 (354)

The Two-stroke Engine

1972
The basic two-stroke cycle was described in Chapter 1 and the operation of this type of engine can now be amplified. Fig. 12.1 shows a typical indicator diagram for a two-stroke, and it can be seen that because the ports open during the stroke the compression and expansion phases are restricted.
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Friction Analysis of a Two Stroke Engine

2015
Internal combustion engines continue to be the vehicles main propulsion system. For all engines, low friction levels are extremely important for the overall efficiency. Components and sub-systems where friction reduction can take place are: crankshaft main bearings, conrod bearings, cam shaft bearings, balancer shafts (if present), auxiliary drives ...
Sebastian Radu, Horia Abăităncei, Adrian Tuşinean, Gheorghe-Alexandru Radu, Marton Iakab-Peter   +4 more
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Conventional two‐stroke engine lubrication

Industrial Lubrication and Tribology, 1997
Gives the results of trials conducted in China which show the use of top‐grade, low smoke, part synthetic two‐stroke oil gives better performance and four times longer engine life than the four‐stroke engine oils generally used to lubricate two‐stroke engines in China. Sets out existing and proposed international standards for two‐stroke engine oils.
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Two-stroke hydrogen injection engine

International Journal of Hydrogen Energy, 1979
Some of the advantages of the two-stroke hydrogen injection engine developed by Musashi Institute of Technology are given. Flashbacks never occur. Higher output than with a gasoline engine is obtainable because the amount of mixture is larger, since only air is introduced.
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Catalyst Deactivation on a Two-Stroke Engine

SAE Technical Paper Series, 1998
<div class="htmlview paragraph">With the legislative demands increasing on recreational vehicles and utility engined applications, the two-stroke engine is facing increasing pressure to meet these requirements. One method of achieving the required reduction is via the introduction of a catalytic converter.
A.P.N. McDowell, R. Douglas, G. McCullough, R.J. Kee   +3 more
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Exhaust Systems of Two-Stroke Engines

Proceedings of the Institution of Mechanical Engineers, 1938
Crankcase-scavenge two-stroke engines have always been fitted with a large expansion chamber immediately outside the exhaust ports, but this is by no means essential, as such engines will operate very satisfactorily with a plain exhaust pipe. The length of this pipe is most important and has a controlling influence on the scavenging of the cylinder ...
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Powering a two-stroke RNA engine

Nature Structural & Molecular Biology, 2007
The spliceosome, the ribonucleoprotein complex that removes introns from precursor messenger RNAs, is thought to undergo conformational changes between two alternative states to catalyze the two steps of the splicing reaction, a model that resembles ribosomal transfer RNA decoding.
Josep Vilardell, Juan Valcárcel
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Influence of Engine Parameters on ATAC Behaviour in a G.D.I. Two-Stroke Engine

SAE Technical Paper Series, 2001
<div class="htmlview paragraph">In two-stroke S.I. engines, direct fuel injection allows avoiding fuel loss from the exhaust port, since the cylinder is scavenged only with air.</div> <div class="htmlview paragraph">However, only if injection produces charge stratification, also combustion difficulties at light loads, due to the ...
GENTILI, ROBERTO, FRIGO, STEFANO, Cozzolino Francesco, ZANFORLIN, STEFANIA   +3 more
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Guidelines for the Optimization of a Muffler in a Small Two Stroke Engine

SAE International Journal of Engines, 2016
<div class="section abstract"><div class="htmlview paragraph">It is well known that 3D CFD simulations can give detailed information about fluid and flow properties in complex 3D domains while 1D CFD simulation can provide important information at a system level, i.e. about the performance of the entire engine.
TESTA, FRANCESCO, Gagliardi, Vincenzo, Ferrari, Marco, FONTANESI, Stefano, Bertani, Andrea   +4 more
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Novel Two-Stroke Engine Concept, Feasibility Study

SAE Technical Paper Series, 2003
<div class="htmlview paragraph">A novel two-stroke engine concept is introduced. The cylinder scavenging takes place during the upward motion of the piston. The gas exchange valves are similar to typical four-stroke valves, but the intake valves are smaller and lighter. The scavenging air pressure is remarkably higher than in present-day engines.
Jukka Tiainen, Ari Saarinen, Tore Grönlund, Martti Larmi   +3 more
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