METHOD OF ICE OPERATION AND DEVICE TO THIS END Russian patent published in 2014 - IPC F02G5/02 F02B33/00 

FIELD: engines and pumps.

SUBSTANCE: invention relates to diesels. At starting, this diesel runs in four-stroke cycle with compressed air heating while at changeover to two-stroke cycle compressed airflow is divided in two flows. Note here that first flow is heated by off-gas heat to fuel ignition temperature by regenerative heat exchange while second flow is heated by recuperative heat exchange. At first stroke initial phase terminates combustion chamber filling with air from first flow, combustion and expansion of gases formed by combustion. At second stroke, off-gas is ejected and purged by second airflow at rarefaction created by ejection. At second stroke end, fuel is injected outside combustion chamber; fuel-air mix is formed and ignited by second airflow. Portion of fuel and fire mix are fed into combustion chamber being actively filled with first airflow. Engine cylinder head is composed by two chambers communicated with combustion chamber. First said chamber makes a antechamber with pump-injector while second said chamber is composed by regenerator. Additionally, this device incorporates ejector connected via exhaust manifold with discharge valve, receiver and pneumatic system composed by pipeline with solenoid valves. These are connected to regenerator and heat exchanger. Besides, pipelines with solenoid valves and nozzles are connected to cylinder, exhaust valve pump-injector servo drives.

EFFECT: higher efficiency, simplified design.

2 cl, 1 dwg