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Patent Searching and Data


Title:
TRANSMISSION HAVING OUTPUT SHAFT SEAL DEVICE
Document Type and Number:
Japanese Patent JP2008051291
Kind Code:
A
Abstract:

To prevent the leakage of lubricating oil from an output shaft seal device of a transmission by reducing the abrasion of an oil seal, even in an environment having particularly a large volume of dust.

This transmission is provided with the oil seal 17 between an output shaft deriving part 10a of a transmission housing 10 and an output shaft 15 projecting from its part. Stationary side and rotary side deflectors 20 and 25 are composed of annular plates 20a and 25a and outer cylinders 20b and 25b continuously formed on its outer periphery, and coaxially fixed to the tip 10b of the output shaft deriving part and the output shaft. Both the deflectors are arranged so that the respective outer cylinders are superposed in the radial direction with a clearance and in the axial direction. A window hole 26 is formed at the annular plate of the rotary side deflector, and an air blowing blade 27 is arranged for making air in the vicinity of the oil seal flow via the window hole by the rotation of the output shaft. The window hole and the air blowing blade are preferably simultaneously formed by cutting and raising processing from the rotary side deflector. A ventilation hole 21 may be formed at the annular plate of the stationary side deflector.


Inventors:
Totsuka, Naomi
Application Number:
JP2006000230273
Publication Date:
March 06, 2008
Filing Date:
August 28, 2006
Export Citation:
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Assignee:
AISIN AI CO LTD
International Classes:
F16C33/72; F16H57/02; F16H57/028; F16H57/029; F16H57/03; F16J15/32; F16J15/3232
Attorney, Agent or Firm:
長谷 照一