Title:
LUBRICATION DEVICE OF DRIVE SYSTEM OF VEHICLE
Document Type and Number:
Japanese Patent JP2017155888
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To immediately increase a circulation amount of oil to an oil reservoir 21, and to suppress the mixing of air bubbles into the oil caused by the suction of air when the suction of the air occurs at the supply of the oil to a region which is necessary to be lubricated or cooled by scooping up the oil by an oil pump 4 from the oil reservoir 21 of a machine chamber R1, in a drive system (transaxle 1) of a vehicle.SOLUTION: A flow rate control valve 5 whose valve-opening degree is changed according to the hydraulic pressure of a discharge oil passage 43 from an oil pump 4 is arranged at a reflux oil passage 44 of oil to an oil reservoir 21 from an oil storage chamber such as, for example, a catch tank 40, and when the hydraulic pressure is lowered to prescribed hydraulic pressure P2 or lower, and it is thought that air bubbles are mixed, the value-opening degree is increased, and a reflux volume of the oil is increased.SELECTED DRAWING: Figure 2
Inventors:
KIYOUE HIROAKI
Application Number:
JP2016041223A
Publication Date:
September 07, 2017
Filing Date:
March 03, 2016
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
F16H57/04
Attorney, Agent or Firm:
Patent Business Corporation Ark Patent Office
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