Free Piston Generator Based on Split Thermodynamic Cycle

A free piston generator based on a split thermodynamic cycle, comprising a linear generator set and two internal combustion engine sets arranged at two ends of the linear generator set, wherein the linear generator set comprises a shell (2), a rotor mandrel (4) movably arranged on the shell (2) in a penetrating manner, a stator coil (1) fixedly arranged in the shell (2) and coaxially sleeving the outside of the rotor mandrel (4), and a generator rotor (3) coaxially fixedly arranged on the rotor mandrel (4) and located between the stator coil (1) and the rotor mandrel (4);

• each internal combustion engine set comprises a high-pressure cylinder and a low-pressure cylinder;
• the high-pressure cylinder comprises a high-pressure cylinder block (14) and a high-pressure piston (15);
• a closed end of the high-pressure cylinder block (14) is provided with a fuel injector (16), a high-pressure inlet valve (13), and a high-pressure exhaust valve (17);
• the low-pressure cylinder comprises a low-pressure cylinder block (8) and a low-pressure piston (9);
• a closed end of the low-pressure cylinder block (8) is provided with a low-pressure inlet valve (6), a low-pressure exhaust valve (7), an exhaust gas inlet (11), and an air outlet valve (10);
• an intercooler (12) is connected and arranged between the air outlet valve (10) and the high-pressure inlet valve (13);
• an exhaust gas communicating pipe (18) is connected and arranged between the high-pressure exhaust valve (17) and the exhaust gas inlet (11);
• and
• the high-pressure piston (15) is fixedly connected to an end part of the rotor mandrel (4), and two low-pressure pistons (9) are connected through a connection assembly.