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US 8,127,736 B2Granted
Balancing assembly of an engine
AssigneeHyundai Motor Company
InventorsByung Chul Lee, Soo Hong Lee, Jeyong Yun
Life of this patent
Estimating the term…
Abstract
A balancing assembly of an engine may include a crankshaft in which crank pins each connected to a connecting rod, are disposed at both ends thereof, and that is equipped with a counterweight opposite to and corresponding to each crank pin, a balance shaft that is disposed at a distance from the crankshaft and that rotates by the crankshaft, and a balance weight that is eccentrically formed with a balance shaft and that absorbs vibration.
Claims9
A balancing assembly of an engine, comprising:
- a crankshaft in which two crank pins, each connected to a respective connecting rod, are disposed at both ends thereof, and that is coupled with a counterweight opposite to and corresponding to each crank pin;
- a balance shaft that is disposed at a distance from the crankshaft and that rotates by the crankshaft;
- and
- a balance weight that is eccentrically formed with the balance shaft and rotates in reverse direction of the crankshaft so as to absorb vibration;
- wherein the crankshaft further comprises an additional crank pin disposed substantially at the middle thereof and not connected to a connecting rod such that two cylinders coupled to the two crank pins are operated among three cylinders.
2 more elements
A balancing assembly of an engine, comprising:
- a crankshaft in which two crank pins, each connected to a respective connecting rod, are disposed at both ends thereof, and that is coupled with a counterweight opposite to and corresponding to each crank pin;
- a balance shaft that is disposed at a distance from the crankshaft and that rotates by the crankshaft;
- and
- a balance weight that is eccentrically formed with the balance shaft and rotates in reverse direction of the crankshaft so as to absorb vibration,
- a crank gear mounted on one end portion of the crankshaft;
- and
- a balance gear mounted on one end portion of the balance shaft and externally meshed with the crank gear, wherein the balance gear is rotated by the crank gear,
- wherein the balance weight comprises:
- a first balance weight disposed at the one end portion of the balance shaft and disposed adjacent to the balance gear;
- and
- a second balance weight disposed at the other end portion of the balance shaft;
- and
- wherein a first key groove is formed at the one end portion of the balance shaft, a second key groove to which a first key is engaged is formed in one portion of the first balance weight, and another second key groove is formed in another portion of the first balance weight at a first predetermined angle from the second key groove in a rotating direction, the first balance weight being engaged with the balance gear or the balance shaft by the first key.
10 more elements
Dependencies are inferred from the claim text.