Free Piston Generator Based on Rigid Synchronous Transmission System

A free piston generator based on a rigid synchronous transmission system, comprising a first linear generator set, a second linear generator set, a rigid synchronous transmission assembly, two high-pressure cylinders arranged at two ends of the first linear generator set, and two low-pressure cylinders arranged at two ends of the second linear generator set, wherein the first 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 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);

• structural composition of the second linear generator set is the same as that of the first linear generator set;
• two rotor mandrels (4) are connected through the rigid synchronous transmission assembly;
• each 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 an fuel injector (16), a high-pressure inlet valve (13), and a high-pressure exhaust valve (17);
• two high-pressure pistons (15) are fixedly connected to two ends of the rotor mandrel (4) of the first linear generator set, respectively;
• each low-pressure cylinder includes 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 inlet port (11), and an outlet valve (10);
• two low-pressure pistons (9) are fixedly connected to two ends of the rotor mandrel (4) of the second linear generator set, respectively;
• an intercooler (12) is connected and arranged between the high-pressure inlet valve (13) on the high-pressure cylinder and the outlet valve (10) on the low-pressure cylinder located on the same side as the high-pressure cylinder;
• and an cross-over channel (18) is connected and arranged between the high-pressure exhaust valve (17) on the high-pressure cylinder and the inlet port (11) on the low-pressure cylinder located on the same side as the high-pressure cylinder.