JPS6353022U

JPS6353022U -

Info

Publication number: JPS6353022U
Application number: JP14610686U
Authority: JP
Priority date: 1986-09-24
Filing date: 1986-09-24
Publication date: 1988-04-09
Also published as: JPH0338509Y2

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例を示す温度感応型流
体式フアン・カツプリング装置の一部切欠き縦断
面図、第２図は第１図の要部の拡大図、第３図は
第２図Ａ−Ａ線のダム部附近の一部切欠き断面図
、第４図は他の実施例に係る第２図相当図、第５
図は従来例の一部切欠きによる拡大縦断面図、第
６図は本考案と従来技術との比較性能特性曲線図
である。７……駆動デイスク、７′或いは７″……突出
壁、１２……ダム、１３……循環路、１４或いは
１４′……逃がし孔、１５或いは１５′……流出
導溝、１６……連通孔。 Fig. 1 is a partially cutaway vertical sectional view of a temperature-sensitive fluid type fan coupling device showing an embodiment of the present invention, Fig. 2 is an enlarged view of the main part of Fig. 1, and Fig. 3 is a second A partially cutaway sectional view of the vicinity of the dam part taken along the line A-A, FIG. 4 is a view equivalent to FIG. 2 according to another embodiment, and FIG.
The figure is an enlarged vertical sectional view with a partial cutaway of the conventional example, and FIG. 6 is a comparative performance characteristic curve diagram of the present invention and the conventional technology. 7...Drive disk, 7' or 7''...Protruding wall, 12...Dam, 13...Circulation path, 14 or 14'...Escape hole, 15 or 15'...Outflow guide groove, 16...Communication Hole.

Claims

[Scope of utility model registration request]

The inside of the sealed container is made up of a case and a cover, which is supported via a bearing on a rotating shaft body with a drive disk fixed to its tip, and a cooling fan member is attached to the outer periphery. An oil reservoir chamber and a torque transmission chamber containing the drive disk are separated by a plate, and a part of the outer circumferential wall of the drive disk where oil collects during rotation and a part of the opposing wall on the side of the sealing case are separated by a plate. A dam is connected to the dam to form a circulation path leading from the torque transmission chamber side to the oil sump chamber side, and when the external ambient temperature exceeds a set value, the outflow adjustment hole of the partition plate is opened and the temperature drops below the set value. In this case, a valve member that closes in response to changes in the temperature of the temperature sensing element is provided inside, and the effective contact area for the amount of oil in the torque transmission gap formed on the opposing wall surface between the drive disk and the case and cover is adjusted. In a fan coupling device that controls the transmission of torque from the rotary shaft side to the driven side of the sealing box by increasing or decreasing the torque, the side wall surface of the outer peripheral end of the drive disk is bent to form an L-shaped cross section or a T cross section. An annular protruding wall is formed in the shape of a letter, and an oil escape hole is provided in the protruding wall portion leading to the circulation path through the dam, and the width of the dam is set to the entire width of the protruding wall of the drive disk. and further forming an oil outflow guide groove communicating with the relief hole in the radial direction of at least one side of the torque transmission surface of the drive disk at approximately the same position as the relief hole,
A temperature-sensitive fluid type fan coupling device characterized in that an oil communication hole to the front and rear torque transmission gaps is bored near the outside of the outflow guide groove.