Machine element or mechanism – Mechanical movements – Rotary to or from reciprocating or oscillating
Patent
1980-09-05
1982-06-29
Staab, Lawrence J.
Machine element or mechanism
Mechanical movements
Rotary to or from reciprocating or oscillating
F16H 2122, G05G 100
Patent
active
043367232
ABSTRACT:
A power transmission for engines, motors, pumps and the like comprises a power shaft mounted to rotate about a fixed axis, an eccentric in the form of a tapered bar having arcuate ends secured on the power shaft to turn therewith, a power transmission ring having a circular internal bearing surface contacting the arcuate ends of the eccentric, a plurality of cranks connected to the power transmission ring by crankpins, each crank having a crankshaft journaled to turn about a fixed axis which is parallel to the power shaft. Power may be applied to any of the crankshafts by a motor coupled to the crankshaft or power may be applied to any crankpin by a pitman connecting the piston of an internal combustion engine or fluid motor to the crankpin. In either case, the power applied imparts non-rotary, planetary motion to the power transmission ring to turn the eccentric about the axis of the power shaft, thereby rotating the power shaft at the same speed at which each of the cranks is rotated but with more torque. In a modified form, the transmission ring may be provided with internal gear teeth, and through a cooperating gearing a secondary power shaft may be driven in the same or in the opposite direction relative to the primary power shaft and at a different speed. In still another form, a power transmission for an in-line multiple piston and cylinder engine comprises a power shaft which is driven by the in-line multiple piston and cylinder engine through a plurality of eccentrics corresponding to the number of engine cylinders spaced along and secured to the power shaft beneath the cylinders. Each of the eccentrics is encompassed by a power transmission ring and a pair of parallel cranks are journaled on opposite sides of each transmission ring by a crankpin extending through the transmission ring parallel to the power shaft. The cranks of each pair are fixed to separate aligned crankshafts journaled in the engine housing with all of the crankshafts of all the transmission rings being axially aligned and connected to rotate as an unified shaft. The piston of each engine cylinder is connected through a pitman to the crankpin journaled in the transmission ring encompassing the eccentric beneath the particular cylinder. The eccentrics are out of phase with each other corresponding to the out of phase between pair of cranks. The cranks for each transmission ring are at all times in parallel with the throw line of the eccentric encompassed by the transmission ring.
REFERENCES:
patent: 1595028 (1926-08-01), Smith
patent: 1780854 (1930-11-01), Watts et al.
patent: 1813288 (1931-07-01), Groh
patent: 2166909 (1939-07-01), Kahn
patent: 2174981 (1939-10-01), Kahn
patent: 2259102 (1941-10-01), Daub
patent: 2259176 (1941-10-01), Pitney
patent: 2452232 (1948-10-01), Fischer
patent: 4194404 (1980-03-01), Jager
Lane Munson H.
Lane, Jr. Munson H.
Staab Lawrence J.
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