Title:
オイルの昇温装置
Document Type and Number:
Japanese Patent JP6863810
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an oil temperature raising device capable of enhancing temperature raising of an oil.SOLUTION: A temperature raising device 1 includes a driven gear 5 housed in a case 9 and disposed on a rotary shaft 6, a frictional material 11 disposed on an outer race 7a of a bearing 7, a disc spring 10 disposed on a side portion of the driven gear 5, and kept into contact with the frictional material 11 when a space between the side portion and the frictional material 11 is a prescribed space or less, and a shape memory alloy 12 expanded at least in an axial direction of the rotary shaft 6 at a prescribed temperature or more. The driven gear 5 is a helical gear, thrust force of the driven gear 5 is generated in a direction of a bearing 7 side in coast traveling of an electric automobile, the case 9 has a coefficient of linear expansion larger than that of the rotary shaft 6, the case 9 is expanded more than the rotary shaft 6 in the axial direction of the rotary shaft 6 in accompany with temperature raising, and the space between the side portion of the driven gear 5 and the frictional material 11 becomes larger than the prescribed space by the shape memory alloy 12 at the prescribed temperature or more.SELECTED DRAWING: Figure 1
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Inventors:
Mitsuo Aoki
Satoshi Inoue
Yoshiaki Yuzawa
Atsuko Kotaro
Toshiki Niinuma
Satoshi Inoue
Yoshiaki Yuzawa
Atsuko Kotaro
Toshiki Niinuma
Application Number:
JP2017086044A
Publication Date:
April 21, 2021
Filing Date:
April 25, 2017
Export Citation:
Assignee:
Subaru corporation
International Classes:
F16H57/04; B60K1/00; B60L15/00
Domestic Patent References:
| JP2015206394A | ||||
| JP2009041620A | ||||
| JP59015848U | ||||
| JP2013160361A | ||||
| JP9210085A |
Attorney, Agent or Firm:
Kazuhiro Ueda