inside cylinder
3.The measurement was carried out by the way of motoring the engine under hot condition and collecting pressure waves ,speed waves at measured section of intake manifold and compression pulse signals inside the cylinder during intake process by using a ICE data analysing system, then the flow coefficient at intake valve seat was calculated with a computer.
9.Therefore, the present thesis is focused on the following aspects:1 To analyze the characteristics and applicable conditions of the existing heat transfer model and to study the cylinder heat transfer model deeply, referring to the differentiated rules of heat transfer, put forward the criterion for the inside bore.

