Internal combustion engine and piston structure therefore
This patent describes a reciprocating internal combustion engine. It comprises: an engine block; at least one pair of coaxially aligned cylinders in the engine block; a dual-headed piston body comprising first and second piston heads attached to opposite ends of a central yoke structure. The first and second piston heads being adapted to reciprocate within respective cylinders of the pair of cylinders; a roller gear mounted within the yoke structure for rectilinear movement with respect to the yoke structure. The roller gear being engageable with a crankshaft drive gear; control means and actuator means for effecting synchronized movement of the roller gear within the yoke structure to maintain constant engagement of the roller gear with the crankshaft drive gear as the dual headed piston body reciprocates within respective cylinders of the pair of cylinders.
- Assignee:
- NOV; EDB-90-001820; NOV-89-081082
- Patent Number(s):
- US 4864976
- Application Number:
- PPN: US 7199767A
- OSTI ID:
- 5370783
- Country of Publication:
- United States
- Language:
- English
Similar Records
V-engine with yoke
Thermomotor