Title:
DIFFERENTIAL DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/107223
Kind Code:
A1
Abstract:
This differential device is provided with boss portions that are provided in side portions of a differential case capable of rotating about a first axis, oil introducing passages that are provided in the boss portions and can introduce lubricant oil from the outside of the differential case to side gear support surfaces of the differential case internal surfaces, and windows that are formed in the differential case to connect the inside and outside of the differential case to each other, wherein in order to make at least a portion of the oil flowing on the internal surfaces from the side gear support surfaces (S1, S2) to the windows (18) be guided to bypass the windows (18), the internal surfaces (Ci) of the differential case (C) have oil guide portions (50) that at least partially protrude from the internal surfaces toward the first axis (X1) and are provided between the side gear support surfaces and at least portions in the circumference of edge portions of the windows in the axial direction. With said configuration, the oil is introduced from the oil introducing passages of the boss portions to the inside of the differential case via the side gear support surfaces, and therefore even when the flow rate of oil flowing on the differential case internal surfaces via the side gear support surfaces in the axial direction is increased, the outflow of the oil through the windows is suppressed effectively.
Inventors:
ODA HIROHISA (JP)
SEKIGUCHI AKUTO (JP)
SEKIGUCHI AKUTO (JP)
Application Number:
PCT/JP2020/042850
Publication Date:
May 27, 2022
Filing Date:
November 17, 2020
Export Citation:
Assignee:
MUSASHI SEIMITSU KOGYO KK (JP)
International Classes:
F16H57/04
Foreign References:
| JP2009127707A | 2009-06-11 | |||
| JP2008128265A | 2008-06-05 | |||
| JP6625778B1 | 2019-12-25 | |||
| JP2019183871A | 2019-10-24 |
Attorney, Agent or Firm:
OCHIAI & CO. (JP)
Download PDF: