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US 2016/0258507 A1Published application
Balancer device for an internal combustion engine
AssigneeHitachi Automotive Systems, Ltd.
InventorRyoji ONIGATA
Life of this patent
Estimating the term…
Abstract
A balancer device for an internal combustion engine is provided, wherein the drive mechanism 8 and the oil pump 3 are arranged on the side opposite to driven balancer weight 135 in the axial direction of the driven balancer shaft 5.
Claims17
A balancer device comprising:
- a drive unit to which a rotational force is transmitted from a crankshaft,
- a drive balancer shaft having a drive balancer weight rotated integrally with the drive unit,
- a balancer drive gear arranged on the same side as the drive unit with reference to the position of the drive balancer weight in the axial direction of the drive side balancer shaft, and rotated integrally with the drive balancer shaft,
- a balancer driven gear engaged with the balancer drive gear,
- a driven balancer shaft rotated integrally with the balancer driven gear and having a driven balancer weight provided on the same side as the drive balancer weight in the axial direction,
- a drive mechanism having a gear on the side opposite to the driven balancer weight in the axial direction of the driven balancer shaft, wherein the rotational force is transmitted to the drive mechanism from one of the balancer shafts, and
- an oil pump driven through the drive mechanism.
4 more elements
A balancer device for an internal combustion engine comprising;
- a housing attached to the internal combustion engine,
- a drive balancer shaft rotationally received in the housing and having a drive balancer weight,
- a chain drive unit provided on one end of the drive balancer shaft, wherein a rotational force is transmitted to the chain drive unit from the crankshaft through a drive chain,
- a balancer drive gear provided between the drive balancer weight and the chain drive unit in the axial direction of the drive balancer shaft and rotated integrally with the drive balancer shaft,
- a balancer driven gear engaged with the balancer drive gear,
- a driven balancer shaft rotated integrally with the balancer driven gear, wherein the driven balancer shaft is received in the housing and has a driven balancer weight provided on the same side as the drive balancer weight in the axial direction,
- an oil pump drive gear provided on the side opposite to the driven balancer weight in the axial direction of the driven balancer shaft and rotated integrally with the driven balancer shaft,
- an oil pump driven gear engaged with the oil pump drive gear, and
- an oil pump driven by an oil pump driven gear.
6 more elements
Dependencies are inferred from the claim text.