Title:
OIL PUMP DEVICE OF BELT TYPE CONTINUOUSLY VARIABLE TRANSMISSION
Document Type and Number:
Japanese Patent JP2014148996
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an oil pump device of a belt type continuously variable transmission that can prevent consumption of waste energy by restraining workload of an oil pump when a vehicle speed is high, and that does not require complicated circuits, mechanisms and the like for controlling hydraulic pressure.SOLUTION: The device comprises: an axial piston pump 5 driven by rotational power of an engine; and a swash plate interlock mechanism 6 for interlocking a swash plate 56 of the axial piston pump 5 with a movable sheave 422 of a secondary pulley 42, and reducing an angle of the swash plate 56 so that a pump emission amount gets smaller as a transmission ratio is smaller.
Inventors:
OKUBO MITSUHIDE
Application Number:
JP2013016426A
Publication Date:
August 21, 2014
Filing Date:
January 31, 2013
Export Citation:
Assignee:
DAIHATSU MOTOR CO LTD
International Classes:
F16H9/12; F04B1/20; F04B1/26
Attorney, Agent or Firm:
Osayuki Yamaguchi