國立虎尾科技大學 |

Spray characterization in a motored direct-injection spark-ignited engine.

紀錄類型:	書目-語言資料,手稿 : Monograph/item
正題名/作者:	Spray characterization in a motored direct-injection spark-ignited engine./
作者:	Parrish, Scott Elmer.
面頁冊數:	1 online resource (287 pages)
附註:	Source: Dissertations Abstracts International, Volume: 59-12, Section: B.
Contained By:	Dissertations Abstracts International59-12B.
標題:	Automotive engineering. -
電子資源:	click for full text (PQDT)
ISBN:	9780591815245

Spray characterization in a motored direct-injection spark-ignited engine.
Parrish, Scott Elmer.

Spray characterization in a motored direct-injection spark-ignited engine. - 1 online resource (287 pages)

Source: Dissertations Abstracts International, Volume: 59-12, Section: B.

Thesis (Ph.D.)--The University of Wisconsin - Madison, 1997.

Includes bibliographical references

The concept of direct-injection spark-ignited engines is attractive for many reasons, but the literature has shown that implementation of the concept is difficult. Specifically, the performance and emission of these types of engines have been shown to be extremely sensitive to engine operating conditions. A thorough understanding of the interaction between the fuel spray and in-cylinder gas flow is required for successful implementation of this engine concept. To this end, the primary objective of this dissertation was to investigate the in-cylinder interaction in a motored direct-injection spark-ignited engine. The methodology of this investigation involved two steps. First, the performance of a candidate fuel injector was characterized outside of an engine. Next, the injector was characterized inside an engine and the results were compared to those obtained out-of-cylinder. Three representative loads, injection pressures, and injection timings were examined. The injector used in this investigation was a single fluid, single hole fuel injector, actuated by an electronically controlled solenoid. In-cylinder experiments were performed using a single cylinder Ricardo Hydra optical engine fitted with a four-valve pent-roof cylinder head. The principal measurement diagnostics employed for experiments were solid-state imaging and diffraction based particle sizing, both of which were developed for the purposes of this investigation. The results of the low load in-cylinder experiments indicated that the interaction between the spray and the in-cylinder gas was minimal. The results of the in-cylinder experiments closely resembled those of the out-of-cylinder experiments. In the case of the medium and high load operating conditions, the interaction between the in-cylinder gas and spray was found to be much more significant. This was particularly true for the high load case. In-cylinder spray shapes were dramatically altered by the in-cylinder gas flow when the start of injection was set to occur during the intake stroke. Effects due to high in-cylinder gas pressures were observed when the start of injection was set to occur during the compression stroke. Penetration of the spray was reduced and features due to the internal geometry of the injector became visible.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2024

Mode of access: World Wide Web

ISBN: 9780591815245Subjects--Topical Terms:

1104081
Automotive engineering.
Index Terms--Genre/Form:

554714
Electronic books.

Spray characterization in a motored direct-injection spark-ignited engine.
LDR:03550ntm a22003377 4500 001 1148485
005 20240924101525.5
006 m o d
007 cr bn ---uuuuu
008 250605s1997 xx obm 000 0 eng d
020 $a 9780591815245
035 $a (MiAaPQ)AAI9810599
035 $a AAI9810599
040 $a MiAaPQ $b eng $c MiAaPQ $d NTU
100 1 $a Parrish, Scott Elmer. $3 1474454
245 1 0 $a Spray characterization in a motored direct-injection spark-ignited engine.
264 0 $c 1997
300 $a 1 online resource (287 pages)
336 $a text $b txt $2 rdacontent
337 $a computer $b c $2 rdamedia
338 $a online resource $b cr $2 rdacarrier
500 $a Source: Dissertations Abstracts International, Volume: 59-12, Section: B.
500 $a Publisher info.: Dissertation/Thesis.
500 $a Advisor: Farrell, Patrick V.
502 $a Thesis (Ph.D.)--The University of Wisconsin - Madison, 1997.
504 $a Includes bibliographical references
520 $a The concept of direct-injection spark-ignited engines is attractive for many reasons, but the literature has shown that implementation of the concept is difficult. Specifically, the performance and emission of these types of engines have been shown to be extremely sensitive to engine operating conditions. A thorough understanding of the interaction between the fuel spray and in-cylinder gas flow is required for successful implementation of this engine concept. To this end, the primary objective of this dissertation was to investigate the in-cylinder interaction in a motored direct-injection spark-ignited engine. The methodology of this investigation involved two steps. First, the performance of a candidate fuel injector was characterized outside of an engine. Next, the injector was characterized inside an engine and the results were compared to those obtained out-of-cylinder. Three representative loads, injection pressures, and injection timings were examined. The injector used in this investigation was a single fluid, single hole fuel injector, actuated by an electronically controlled solenoid. In-cylinder experiments were performed using a single cylinder Ricardo Hydra optical engine fitted with a four-valve pent-roof cylinder head. The principal measurement diagnostics employed for experiments were solid-state imaging and diffraction based particle sizing, both of which were developed for the purposes of this investigation. The results of the low load in-cylinder experiments indicated that the interaction between the spray and the in-cylinder gas was minimal. The results of the in-cylinder experiments closely resembled those of the out-of-cylinder experiments. In the case of the medium and high load operating conditions, the interaction between the in-cylinder gas and spray was found to be much more significant. This was particularly true for the high load case. In-cylinder spray shapes were dramatically altered by the in-cylinder gas flow when the start of injection was set to occur during the intake stroke. Effects due to high in-cylinder gas pressures were observed when the start of injection was set to occur during the compression stroke. Penetration of the spray was reduced and features due to the internal geometry of the injector became visible.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2024
538 $a Mode of access: World Wide Web
650 4 $a Automotive engineering. $3 1104081
650 4 $a Automotive materials. $3 1474455
650 4 $a Mechanical engineering. $3 557493
655 7 $a Electronic books. $2 local $3 554714
690 $a 0548
690 $a 0540
710 2 $a The University of Wisconsin - Madison. $3 845500
710 2 $a ProQuest Information and Learning Co. $3 1178819
773 0 $t Dissertations Abstracts International $g 59-12B.
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9810599 $z click for full text (PQDT)