| 31. | The next type was thickened at the exhaust ports and are also known by some people as Mk2.
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| 32. | In full-size engines, the steam and exhaust ports are usually built into the pivot ( trunnion ) mounting.
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| 33. | All exhaust ports now faced rearwards.
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| 34. | The head used during this time was the so-called " rectangle port ", named after its exhaust port shape.
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| 35. | The products of the flame are finally vented out of the detector through the exhaust port ( J ).
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| 36. | However, the risk of excessive compression often results in small auxiliary exhaust ports being included at the cylinder heads.
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| 37. | The lower crankshaft ran eleven degrees behind the upper, meaning that the exhaust ports opened first, allowing proper scavenging.
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| 38. | The exhaust port opens while there is still significant pressure in the cylinder, which drives the initial outflow of exhaust.
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| 39. | Fresh air cleanses the cylinders of remaining exhaust prior to the exhaust ports being covered by the rising lower piston.
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| 40. | This approach allowed Mazda to eliminate overlap between intake and exhaust port openings, while simultaneously increasing the exhaust port area.
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