Matches in SemOpenAlex for { <https://semopenalex.org/work/W2023785754> ?p ?o ?g. }
Showing items 1 to 92 of
92
with 100 items per page.
- W2023785754 abstract "In a turbocharged engine, preserving the maximum amount of exhaust pulse energy for turbine operation will result in improved low end torque and engine transient response. However, the exhaust flow entering the turbine is highly unsteady, and the presence of the turbine as a restriction in the exhaust flow results in a higher pressure at the cylinder exhaust ports and consequently poor scavenging. This leads to an increase in the amount of residual gas in the combustion chamber, compared to the naturally-aspirated equivalent, thereby increasing the tendency for engine knock. If the level of residual gas can be reduced and controlled, it should enable the engine to operate at a higher compression ratio, improving its thermal efficiency. This paper presents a method of turbocharger matching for reducing residual gas content in a turbocharged engine. The turbine is first scaled to a larger size as a preliminary step towards reducing back pressure and thus the residual gas concentration in-cylinder. However a larger turbine causes a torque deficit at low engine speeds. So in a following step, pulse separation is used. In optimal pulse separation, the gas exchange process in one cylinder is completely unimpeded by pressure pulses emanating from other cylinders, thereby preserving the exhaust pulse energy entering the turbine. A pulse-divided exhaust manifold enables this by isolating the manifold runners emanating from certain cylinder groups, even as far as the junction with the turbine housing. This combination of appropriate turbine sizing and pulse-divided exhaust manifold design is applied to a Proton 1.6-litre CamPro CFE turbocharged gasoline engine model. The use of a pulse-divided exhaust manifold allows the turbine to be increased in size by 2.5 times (on a mass flow rate basis) while maintaining the same torque and power performance. As a consequence, lower back pressure and improved scavenging reduces the residual concentration by up to 43%, while the brake specific fuel consumption improves by approx. 1%, before any modification to the compression ratio is made." @default.
- W2023785754 created "2016-06-24" @default.
- W2023785754 creator A5002594699 @default.
- W2023785754 creator A5003645902 @default.
- W2023785754 creator A5039907760 @default.
- W2023785754 creator A5065879758 @default.
- W2023785754 date "2015-04-14" @default.
- W2023785754 modified "2023-09-26" @default.
- W2023785754 title "Turbocharger Matching Method for Reducing Residual Concentration in a Turbocharged Gasoline Engine" @default.
- W2023785754 cites W1514933210 @default.
- W2023785754 cites W1568180730 @default.
- W2023785754 cites W1911741348 @default.
- W2023785754 cites W1925867693 @default.
- W2023785754 cites W1970659675 @default.
- W2023785754 cites W2031093649 @default.
- W2023785754 cites W2047348318 @default.
- W2023785754 cites W2061288302 @default.
- W2023785754 cites W2075596161 @default.
- W2023785754 cites W2096525110 @default.
- W2023785754 cites W2130574460 @default.
- W2023785754 cites W2138363134 @default.
- W2023785754 cites W2225302629 @default.
- W2023785754 cites W26325541 @default.
- W2023785754 cites W56096500 @default.
- W2023785754 cites W650175124 @default.
- W2023785754 cites W2252462515 @default.
- W2023785754 doi "https://doi.org/10.4271/2015-01-1278" @default.
- W2023785754 hasPublicationYear "2015" @default.
- W2023785754 type Work @default.
- W2023785754 sameAs 2023785754 @default.
- W2023785754 citedByCount "6" @default.
- W2023785754 countsByYear W20237857542016 @default.
- W2023785754 countsByYear W20237857542017 @default.
- W2023785754 countsByYear W20237857542020 @default.
- W2023785754 countsByYear W20237857542022 @default.
- W2023785754 countsByYear W20237857542023 @default.
- W2023785754 crossrefType "proceedings-article" @default.
- W2023785754 hasAuthorship W2023785754A5002594699 @default.
- W2023785754 hasAuthorship W2023785754A5003645902 @default.
- W2023785754 hasAuthorship W2023785754A5039907760 @default.
- W2023785754 hasAuthorship W2023785754A5065879758 @default.
- W2023785754 hasBestOaLocation W20237857542 @default.
- W2023785754 hasConcept C103697071 @default.
- W2023785754 hasConcept C105795698 @default.
- W2023785754 hasConcept C11413529 @default.
- W2023785754 hasConcept C127413603 @default.
- W2023785754 hasConcept C146978453 @default.
- W2023785754 hasConcept C155512373 @default.
- W2023785754 hasConcept C165064840 @default.
- W2023785754 hasConcept C171146098 @default.
- W2023785754 hasConcept C21541133 @default.
- W2023785754 hasConcept C2778449969 @default.
- W2023785754 hasConcept C33923547 @default.
- W2023785754 hasConcept C39432304 @default.
- W2023785754 hasConcept C39573554 @default.
- W2023785754 hasConcept C41008148 @default.
- W2023785754 hasConcept C511840579 @default.
- W2023785754 hasConcept C548081761 @default.
- W2023785754 hasConceptScore W2023785754C103697071 @default.
- W2023785754 hasConceptScore W2023785754C105795698 @default.
- W2023785754 hasConceptScore W2023785754C11413529 @default.
- W2023785754 hasConceptScore W2023785754C127413603 @default.
- W2023785754 hasConceptScore W2023785754C146978453 @default.
- W2023785754 hasConceptScore W2023785754C155512373 @default.
- W2023785754 hasConceptScore W2023785754C165064840 @default.
- W2023785754 hasConceptScore W2023785754C171146098 @default.
- W2023785754 hasConceptScore W2023785754C21541133 @default.
- W2023785754 hasConceptScore W2023785754C2778449969 @default.
- W2023785754 hasConceptScore W2023785754C33923547 @default.
- W2023785754 hasConceptScore W2023785754C39432304 @default.
- W2023785754 hasConceptScore W2023785754C39573554 @default.
- W2023785754 hasConceptScore W2023785754C41008148 @default.
- W2023785754 hasConceptScore W2023785754C511840579 @default.
- W2023785754 hasConceptScore W2023785754C548081761 @default.
- W2023785754 hasLocation W20237857541 @default.
- W2023785754 hasLocation W20237857542 @default.
- W2023785754 hasOpenAccess W2023785754 @default.
- W2023785754 hasPrimaryLocation W20237857541 @default.
- W2023785754 hasRelatedWork W1579676742 @default.
- W2023785754 hasRelatedWork W2092651116 @default.
- W2023785754 hasRelatedWork W2318786652 @default.
- W2023785754 hasRelatedWork W2354240893 @default.
- W2023785754 hasRelatedWork W2359080308 @default.
- W2023785754 hasRelatedWork W2375140457 @default.
- W2023785754 hasRelatedWork W2383062544 @default.
- W2023785754 hasRelatedWork W2891481963 @default.
- W2023785754 hasRelatedWork W3025777182 @default.
- W2023785754 hasRelatedWork W4240791820 @default.
- W2023785754 isParatext "false" @default.
- W2023785754 isRetracted "false" @default.
- W2023785754 magId "2023785754" @default.
- W2023785754 workType "article" @default.