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Title: 二系統の燃料噴射システムを備えたディーゼル機関の性能と排気
Other Titles: Performance and Exhaust Emissions of a Diesel Engine Equipped with Dual Injector System
Authors: 堀部, 直人  kyouindb  KAKEN_id  orcid (unconfirmed)
八木, 政人  KAKEN_name
桑原, 洋樹  KAKEN_name
川那辺, 洋  KAKEN_name
石山, 拓二  kyouindb  KAKEN_id
Author's alias: Horibe, Naoto
Yagi, Masato
Kuwabara, Hiroki
Kawanabe, Hiroshi
Ishiyama, Takuji
Keywords: Heat engine
Compression ignition engine
Performance/fuel economy/efficiency
Dual injection
Injection rate (A1)
Issue Date: Mar-2017
Publisher: 自動車技術会
Journal title: 自動車技術会論文集
Volume: 48
Issue: 2
Start page: 219
End page: 224
Abstract: To examine the feasibility of performance improvement by highly flexible fuel injection, a series of experiments were performed using a single-cylinder diesel engine with a dual injector system which includes two sets of common-rail injection systems. This system enables variable injection rate for each injection pulse and a wide-range dwell between injection pulses, i.e. even negative injection dwell can be performed. Experiments with multi-stage injection were conducted with various injection pressures, injection timings, and injection quantities. The results show that switching injector for pilot and main injections reduces smoke emission, and a higher pilot injection pressure increases CO emission without a reduction of smoke emission, while a higher main injection pressure reduces smoke emission with no increase in CO emission. Split-main injection with zero injection dwell increases thermal efficiency under high injection pressure condition. However, negative injection dwell markedly increases smoke emission owing to the spray-to-spray interaction.
Description: 2016年5月27日 自動車技術会春季学術講演会において発表.
Rights: © 2017 公益社団法人 自動車技術会 (Society of Automotive Engineers of Japan, Inc.)
DOI(Published Version): 10.11351/jsaeronbun.48.219
Appears in Collections:Journal Articles

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