Title:
GEAR, BALANCER DEVICE, AND BALANCER DEVICE WITH OIL PUMP
Document Type and Number:
Japanese Patent JP2019190610
Kind Code:
A
Abstract:
To provide a gear which can reduce sound caused by gears engaging with each other and inhibit enlargement of the gear, and to provide a balancer device and the balancer device with an oil pump.SOLUTION: A balancer device includes: a balancer drive shaft 6 including a balancer weight 6c; a main gear 5 which integrally rotates with the balancer drive shaft 6 and to which rotational force is transmitted from a crank shaft 2 through a crank gear 3; and a first annular groove 51 and a second annular groove 52 which are respectively formed at both side surfaces of the main gear 5 as seen in a direction of a rotation axis of the balancer drive shaft 6, at least partially overlap with each other when viewed in the direction of the rotation axis, and at least partially overlap with each other in a radial direction relative to the rotation axis.SELECTED DRAWING: Figure 12
More Like This:
Inventors:
KURITA MASAFUMI
KITAMURA MASAHARU
KITAMURA MASAHARU
Application Number:
JP2018086309A
Publication Date:
October 31, 2019
Filing Date:
April 27, 2018
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD
International Classes:
F16H55/14; F02B67/04; F02B77/00; F16F15/26
Domestic Patent References:
| JP2014134230A | 2014-07-24 | |||
| JPS54168494U | 1979-11-28 |
Attorney, Agent or Firm:
Polaire Patent Business Corporation