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 language | English |
|---|---|
| Pages (from-to) | 3577-3582 |
| Number of pages | 6 |
| Journal | Transactions of the Japan Society of Mechanical Engineers Series B |
| Volume | 60 |
| Issue number | 578 |
| DOIs | |
| Publication status | Published - 1994 |
Keywords
- Flow Measurements
- Gasoline Engine
- Internal Combustion Engine
- Steady-Flow Test
- Swirl
- Tumble
ASJC Scopus subject areas
- Condensed Matter Physics
- Mechanical Engineering