03-01-2019 дата публикации
Номер: US20190003373A1
An air handling arrangement in a two-stroke cycle, opposed-piston engine with uniflow scavenging and constructed for heavy-duty operation includes sequentially arranged turbochargers in series with a supercharger, in some aspects, the air handling system is equipped with an EGR channel. 180302. A two-stroke cycle , uniflow-scavenged , opposed-piston engine ( , ) , comprising:{'b': 50', '52', '54', '56', '60', '62, 'one or more cylinders (), each cylinder comprising a bore (), longitudinally-separated exhaust and intake ports ( and ), and a pair of pistons ( and ) disposed in the bore for opposing movements therein, in which movement of a first piston of the pair of pistons controls the exhaust port and movement of the second piston of the pair of pistons controls the intake port;'}{'b': 305', '56', '56', '54, 'a supercharger () disposed in fluid communication with the intake ports () to provide a continuous positive pressure differential from the intake ports () to the exhaust ports () so as to maintain a unidirectional flow of gas from the intake ports to the exhaust ports during two-stroke operation of the engine;'}characterized by:{'b': 306', '312', '314', '305', '312', '314', '314', '305', '54', '314', '54', '312', '314, 'a sequential turbocharger (), including a first turbocharger () and a second turbocharger (), each of the turbochargers including a turbine and a compressor, in which the compressors of the first and second turbochargers are arranged in series with the supercharger () such that the compressor of the first turbocharger () is in fluid communication with the compressor of the second turbocharger () and the compressor of the second turbocharger () is in fluid communication with the supercharger (), and the turbines of the first and second turbochargers are arranged in series with the exhaust ports () such that the turbine of the second turbocharger () is in fluid communication with the exhaust ports () and the turbine of the first turbocharger () ...
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