Fuel economy opportunities for internal combustion engines by means of oil-cooling - 文章详情页

作者：

Ma, C.F. (Ma, C.F..) | Li, J.C. (Li, J.C..) | Qin, W.X. (Qin, W.X..) | Wei, Z.Y. (Wei, Z.Y..) | Chen, J. (Chen, J..)

收录：

Scopus

摘要：

Comparative　experiments　of　oil　and　water-cooling　were　performed　on　a　4-cylinder　automotive　gasoline　engine　and　a　single-cylinder　direct　injection　Diesel　engine.　Measurements　were　made　to　investigate　the　variation　of　fuel　consumption,　combustor　wall　temperature　and　engine　emissions　(HC,　CO,　NO　x　and　smoke)　with　two　cooling　media　at　steady-state　conditions.　Significant　improvement　of　fuel　economy　was　found　mainly　at　partial　load　conditions　with　oil-cooling　in　comparison　with　the　baseline　water-cooling　both　for　the　two　engines.　The　experimental　results　also　showed　general　trend　of　reduction　in　engine　emissions　using　oil　as　the　coolant.　Measurements　of　wall　temperature　demonstrated　that　oil-cooling　resulted　in　considerable　increase　of　the　combustor　wall　temperature　and　reduce　of　warm-up　period　in　starting　process.　For　automotive　gasoline　engine,　road　tests　indicated　the　same　trend　of　fuel　economy　improvement　with　oil-cooling.　The＇　performance　of　the　automotive　oil-cooled　engine　was　further　improved　by　internal　cooling　with　water　or　methanol　injection.

关键词：

Internal combustion engines; Internal cooling; Oil cooling

作者机构：

[ 1 ] [Ma, C.F.]Department of Thermal Science and Engineering, Beijing Polytechnic University, Beijing 100022, China
[ 2 ] [Li, J.C.]Department of Thermal Science and Engineering, Beijing Polytechnic University, Beijing 100022, China
[ 3 ] [Qin, W.X.]Department of Thermal Science and Engineering, Beijing Polytechnic University, Beijing 100022, China
[ 4 ] [Wei, Z.Y.]Department of Thermal Science and Engineering, Beijing Polytechnic University, Beijing 100022, China
[ 5 ] [Chen, J.]Department of Thermal Science and Engineering, Beijing Polytechnic University, Beijing 100022, China

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