Steady-flow test for tumble in an engine cylinder

Yoshisuke Hamamoto, Eiji Tomita, Guobang Liu, Seiichi Tanabe, Zhong Zhang

Research output: Contribution to journalArticle

Abstract

In this study, the validity of the steady-flow test for tumble in the cylinder of a pent-roof-type S.I. engine with 4 valves was examined. The tumbling flow velocity in the cylinder at TDC of a compression stroke was measured with a LDV, and the angular velocity was determined. The measurement results were compared with the results of steady-flow tests. Two types of steady-flow tests were examined. In the first method the characteristic value of tumble speed was determined from the data of flow velocity distribution measured with a hot-wire anemometer, and in the second one a paddle wheel was used. As a result, it was recognized that the steady-flow tests were effective in evaluating the tumbling flow performance of an intake system.

Original languageEnglish
Pages (from-to)3577-3582
Number of pages6
JournalNippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume60
Issue number578
Publication statusPublished - Oct 1994
Externally publishedYes

Fingerprint

steady flow
Steady flow
Engine cylinders
engines
Barreling
Flow velocity
flow velocity
intake systems
hot-wire anemometers
paddles
Intake systems
roofs
Anemometers
International System of Units
Angular velocity
angular velocity
wheels
strokes
Velocity distribution
Roofs

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

Steady-flow test for tumble in an engine cylinder. / Hamamoto, Yoshisuke; Tomita, Eiji; Liu, Guobang; Tanabe, Seiichi; Zhang, Zhong.

In: Nippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, Vol. 60, No. 578, 10.1994, p. 3577-3582.

Research output: Contribution to journalArticle

Hamamoto, Yoshisuke ; Tomita, Eiji ; Liu, Guobang ; Tanabe, Seiichi ; Zhang, Zhong. / Steady-flow test for tumble in an engine cylinder. In: Nippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B. 1994 ; Vol. 60, No. 578. pp. 3577-3582.
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