Hypocycloid engine
This paper describes a crankshaft assembly a hypocycloid engine, the assembly rotatably supported in an engine crankcase. It comprises: a main output shaft; a first cylindrical crank support attached to an inner end of the output shaft coaxially therewith; a second cylindrical crankpin support attached to an inner end of a stub shaft coaxially therewith; a cylindrical crankpin extending between and attached by its opposite ends to the first and second crankpin supports, the axis of the crankpin disposed offset from and parallel to a common axis of the output and stub shafts; a fixedly interconnected subassembly including an eccentric piston rod mounting disc, a pinion gear and counterweight means journalled for rotation on the crankpin, the subassembly including means for interconnecting the mounting disc, pinion gear and counterweight means; crankpin bearing means rotatably supporting the subassembly on the crankpin, the bearing means positioned to distribute a radial load on the piston rod mounting disc to the ends of the crankpin closely adjacent the crankpin supports; and first and second support bearings respectively rotatably mounting the first and second crankpin supports in the crankcase directly adjacent the ends of the crankpin.
- Assignee:
- NOV; EDB-92-087974; NOV-92-021464
- Patent Number(s):
- A; US 5067456
- Application Number:
- PPN: US 7-614208
- OSTI ID:
- 5581050
- Country of Publication:
- United States
- Language:
- English
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