Title:
GEAR, BALANCER DEVICE, AND BALANCER DEVICE PROVIDED WITH OIL PUMP
Document Type and Number:
WIPO Patent Application WO/2019/208068
Kind Code:
A1
Abstract:
A balancer device comprising: a balancer drive shaft (6) provided with a balancer weight (6c); a main gear (5) which rotates integrally with the balancer drive shaft (6), and to which is transmitted rotational force from a crankshaft (2) via a crank gear (3); and a first annular groove (51) and second annular groove (52) which are formed respectively on the side surfaces of the main gear (5) in the direction of the rotational axis of the balancer drive shaft (6), the first annular groove (51) and second annular groove (52) at least partially overlapping when viewed from the direction of the rotational axis, and at least partially overlapping in the radial direction relative to the rotational axis. With this configuration it is possible to minimize noises that occur due to the gears meshing together and to minimize any size increase of the gears.
Inventors:
KURITA MASAHUMI (JP)
KITAMURA MASAHARU (JP)
KITAMURA MASAHARU (JP)
Application Number:
PCT/JP2019/013056
Publication Date:
October 31, 2019
Filing Date:
March 27, 2019
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
F16H55/14; F02B67/04; F02B77/00; F16F15/26
Foreign References:
| JP2014134230A | 2014-07-24 | |||
| JPS54168494U | 1979-11-28 |
Attorney, Agent or Firm:
KOBAYASHI, Hiromichi et al. (JP)
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