Title:
OIL PASSAGE STRUCTURE OF HYDRAULIC POWER TRANSMISSION APPARATUS
Document Type and Number:
Japanese Patent JP2015110975
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an oil passage structure capable of realizing both fusion resistance related to a bearing bush of a pump impeller and prevention of reduction in the quantity of torque converter hydraulic oil.SOLUTION: A seal ring 34 restricts leakage of α-direction hydraulic oil toward a torque converter via an oil passage part 32a on one end of a bush 31, in a β-direction via an oil passage part 32b on the other end of the bush 31, and a leakage quantity β of the hydraulic oil is made to correspond to a quantity of oil required to lubricate a bearing surface (inner circumferential surface) of the bush 31. This can supply the hydraulic oil of the quantity required for lubrication onto the bearing surface of the bush 31 and compensate for fusion resistance of the bush 31. On the other hand, the restriction of the leakage quantity β of the hydraulic oil can prevent the hydraulic oil α toward the torque converter via the oil passage part 32b on one end of the bush 31 from being reduced to an unignorable degree. It is, therefore, possible to realize the fusion resistance of the bush 31 and the prevention of the reduction in the torque converter hydraulic oil.
Inventors:
HASEGAWA JUN
YAMAZAKI MASANORI
YAMAZAKI MASANORI
Application Number:
JP2013253275A
Publication Date:
June 18, 2015
Filing Date:
December 06, 2013
Export Citation:
Assignee:
NISSAN MOTOR
JATCO LTD
JATCO LTD
International Classes:
F16H41/30; F16H41/26
Attorney, Agent or Firm:
Masamichi Ayata