Experimental assessment of diesel engine cylinder deactivation performance during low-load transient operations

Autor:	Mrunal C Joshi, Dheeraj B Gosala, Cody M Allen, Lisa Farrell, Gregory M. Shaver, James McCarthy
Rok vydání:	2019
Předmět:	Mechanical Engineering Aerospace Engineering Ocean Engineering Thermal management of electronic devices and systems Diesel engine Automotive engineering Cylinder (engine) law.invention Diesel fuel law Automotive Engineering Fuel efficiency Environmental science Low load Transient (oscillation)
Zdroj:	International Journal of Engine Research. 22:606-615
ISSN:	2041-3149 1468-0874
DOI:	10.1177/1468087419857597
Popis:	Fuel-efficient aftertreatment thermal management in modern diesel engines is a difficult challenge, especially during low-load operation. This study explores the performance of cylinder deactivation in a diesel engine during low-load operation following highway cruise through experimental evaluation of two drive cycles, specifically extended idle and repeated heavy heavy-duty diesel truck creep cycles. Cylinder deactivation operations are shown to maintain comparable aftertreatment thermal management performance to conventional thermal management operation while reducing fuel up to 40% during extended idle operation. This fuel efficiency improvement coincides with engine-out emission reductions of 72% for soot and 52% for NOx. Cylinder deactivation also shows improved thermal management compared to a more fuel-efficient conventional operation.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::70b19bb1511b549e1ba8f3a99c8c776b https://doi.org/10.1177/1468087419857597 Zobrazit plný text záznamu