Piston and spring powered engine

Patent · Tue Dec 10 04:00:00 EST 1985

OSTI ID:5745170

Samodovitz, A J

The invention is an improved piston engine, either two stroke or four stroke. In one, two stroke, one cylinder embodiment, the improvement comprises two springs connecting between the piston and the base of the piston. These springs are relatively relaxed when the crank is at top dead center. Then during the power/intake stroke, some of the fuel's energy is delivered to the crankshaft and some is used to compress the springs. The stored energy in the springs is delivered to the crankshaft during the exhaust/compression stroke while the springs return to their relatively relaxed condition. As a result, energy is delivered to the crankshaft during both strokes of the cycle, and the engine runs smooth. In one, four stroke, two cylinder embodiment, each cylinder has springs as described above, the cranks of each cylinder are aligned, and the cam sets one cylinder in the power stroke while the other is in the intake stroke. As a result, the engine runs smooth because energy is delivered to the crankshaft during all four strokes of the cycle, during two of the strokes by the burning fuel and during the other two by the release of energy in the springs. In both embodiments, a heavy crankshaft is not needed because of the more uniform power delivery.

• Assignee: IFI; EDB-86-101985
• Patent Number(s): US 4557228
• OSTI ID: 5745170
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330101* -- Internal Combustion Engines-- Spark-Ignition
ANGULAR VELOCITY
CYLINDERS
DESIGN
ENERGY STORAGE
ENERGY TRANSFER
ENGINES
FLUCTUATIONS
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
MACHINE PARTS
OPERATION
PISTONS
SHAFTS
SPARK IGNITION ENGINES
SPRINGS
STEADY-STATE CONDITIONS
STORAGE
VARIATIONS
VELOCITY
WEIGHT