Machine element or mechanism – Mechanical movements – Rotary to or from reciprocating or oscillating
Patent
1979-05-07
1981-04-21
Staab, Lawrence J.
Machine element or mechanism
Mechanical movements
Rotary to or from reciprocating or oscillating
56 175, 74604, 123192B, F16H 2122, F02B 7506
Patent
active
042625483
ABSTRACT:
A powered device has a center of gravity and includes an engine comprising a block member, a crankshaft having opposite first and second end portions, and generally spaced supports on the block member for supporting the crankshaft for rotation with the first end portion extending toward the center of gravity and the second end portion extending beyond the supports. A piston is located in the block member for reciprocative movement, and a connecting rod has a first end portion pivotally connected with the piston and a rotationally balanced second end portion rotationally connected with the crankshaft intermediate the supports for converting the reciprocative movement of the piston into rotation of the crankshaft about its axis. The engine includes a counterweight on the crankshaft adjacent to the second end portion of the crankshaft for generating an offsetting foce during piston reciprocation to reduce vibration axially along the reciprocative axis of the piston and rotationally about an axis which extends through the center of gravity of the device.
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patent: 3942505 (1976-03-01), Tillotson
patent: 4070971 (1978-01-01), Studebaker
Haft Gerald
Scharpf Otto H.
Outboard Marine Corporation
Staab Lawrence J.
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