Oil-sealing structure of motor

Details Oil-sealing structure of motor Oil-sealing structure of motor

1990-06-08

1992-04-21

Luong, Vinh T.

Machine element or mechanism

Elements

Gear casings

74 6, 74607, F16H 5702, F02N 1100

Patent

active

051056852

ABSTRACT:
An oil-sealing structure of a motor including a bearing supporting a motor shaft, and an oil seal provided in the space between the motor shaft and a bracket and positioned close to one end of the motor shaft while separated by a predetermined distance from the bearing. An outer peripheral surface of the motor shaft faces, within the space, an inner peripheral surface of the bracket. Steps are formed on the motor-shaft outer peripheral surface and positioned between the bearing and the oil seal, with their diameter increasing in a stepped manner toward the bearing. A stepped groove is formed on the bracket inner peripheral surface and positioned between the bearing and the oil seal, with its diameter decreasing in a stepped manner toward the bearing. An oil outlet is also formed on the bracket inner peripheral surface for discharging oil which has penetrated beyond the oil seal. The structure is capable of highly secure prevention of oil penetration into the motor.

REFERENCES:
patent: 4726254 (1988-02-01), Kubo et al.
patent: 4763538 (1988-08-01), Fujita et al.
patent: 4867008 (1989-09-01), Yamaoka et al.
patent: 4907470 (1990-03-01), Kasemeier et al.
patent: 4938084 (1990-07-01), Morishita et al.

Affiliated with

Also associated with

Rating

Oil-sealing structure of motor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Oil-sealing structure of motor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Oil-sealing structure of motor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1577739