Internal combustion engine, has four pistons that are firmly mounted on double-ended rod, and four hydraulic pumps for supplying and discharging coolant from engine through radiator into supply tank

摘要

The engine has four pistons (2) that are firmly mounted on a double-ended rod, and the pistons are also placed in two cylinder barrels that are lying adjacent to one another. Two cylinder-pipes (1) are firmly connected to the pistons, such that the pistons move in opposite directions. Four hydraulic pumps supply and discharge coolant from the engine through a radiator into a central hydraulic fluid supply tank.