OPENTECHNICAL PUBLICATION
OT-2026-000000598

Non-uniform stroke duration apparatus and engine provided with the same

Published: 2026-09-15T19:03:08.232936Z
Permanent URL: https://opentechnical.org/p/OT-2026-000000598
Categories: Industrial Motion & Power Transmission > Rotary Motion

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ABSTRACT

A non-uniform stroke duration apparatus includes a crankshaft including a
first main crankshaft and a second main crankshaft coaxially disposed with the
first main crankshaft and constantly rotating at the same speed as the first
main crankshaft, and having a predetermined crankshaft rotation center, a
plurality of pin journal units disposed between the first main crankshaft and
the second main crankshaft, and an eccentric rotation transmitter including an
internal bracket that rotates around an eccentric axis formed by a pivot angle
in a predetermined direction and spaced apart from the crankshaft rotation
center by a predetermined eccentric distance, and changing a relative rotation
speed of the pin journal units with respect to the crankshaft.

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OpenTechnical publication OT-2026-000000598
Published 2026-09-15T19:03:08.232936Z
https://opentechnical.org/p/OT-2026-000000598