JPH0230537U

JPH0230537U -

Info

Publication number: JPH0230537U
Application number: JP1988108898U
Authority: JP
Priority date: 1988-08-19
Filing date: 1988-08-19
Publication date: 1990-02-27
Anticipated expiration: 2003-08-19
Also published as: JPH0642108Y2

Description

[Brief explanation of drawings]

第１図イは本考案の一実施例に係る温度感応型
流体式フアン・カツプリング装置の縦断面図、第
１図ロは他の実施例を示す第１図イ相当図、第２
図は第１図ロの本考案の要部に係る一部の切欠き
による拡大断面図、第３図は第２図の駆動デイス
ク単体の一部の平面図、第４図は他の実施例を示
す駆動デイスク単体の一部の縦断面図、第５図は
第４図の一部の平面図、第６図は更に他の実施例
を示す密封器匣内部でのラビリンス機構の一部拡
大断面図である。４…トルク伝達室、５…仕切板、５′…流出調
整孔、７…駆動デイスク、７′或いは７′，７″
…凸壁、１２…ダム、１４…アイドル油溜り室。 FIG. 1A is a vertical sectional view of a temperature-sensitive fluid type fan coupling device according to an embodiment of the present invention, FIG. 1B is a view corresponding to FIG. 1A showing another embodiment, and FIG.
The figure is an enlarged cross-sectional view of a part of the main part of the present invention shown in FIG. FIG. 5 is a plan view of a portion of FIG. 4, and FIG. 6 is a partially enlarged view of the labyrinth mechanism inside the sealing case showing another embodiment. FIG. 4... Torque transmission chamber, 5... Partition plate, 5'... Outflow adjustment hole, 7... Drive disk, 7' or 7', 7''
...Convex wall, 12...Dam, 14...Idle oil sump room.

Claims

[Scope of Claim for Utility Model Registration] (1) Inside a hermetically sealed container consisting of a cover and a case, which is supported via a bearing on a rotating shaft with a drive disk fixed to the tip, and a cooling fan is attached to the outer periphery. , an oil reservoir chamber and a torque transmission chamber in which the drive disk is housed are separated by a partition plate having an oil outflow adjustment hole, and a sealing box facing the outer peripheral wall of the drive disk where oil collects during rotation. A dam is formed on a part of the inner wall surface of the side, and a circulation flow passage leading from the torque transmission chamber side to the oil sump chamber side is formed. A valve member that opens the hole and closes when the value is below a set value is provided inside so as to be linked to the deformation caused by the temperature change of the temperature sensing element provided on the front surface of the cover, and a valve member that opens the hole and closes when the hole is below a set value is provided inside the cover so as to be connected to the outside of the drive disk, the case and the cover. A fan coupling device that controls torque transmission from the rotating shaft side to the driven side of the sealing case by increasing or decreasing the effective contact area of oil in a torque transmission gap provided on a nearby opposing wall. A plurality of radial convex walls 7' or 7', 7'' are provided on at least one of both surfaces of the drive disk 7 at a position radially inward from the torque transmission gap. A temperature-sensitive fluid type fan coupling device characterized in that: (2) the sealing box according to claim 1;
A temperature-sensitive fluid type fan characterized in that an annular idle oil reservoir chamber 14 communicating with the torque transmission chamber 4 is provided on an inner circumferential wall surface portion located radially outward from the dam 12. Coupling device. (3) The temperature-sensitive fluid type fan according to claim 1, characterized in that the vicinity of the outer wall surface of the drive disk 7 and the opposing wall surface of the sealing case are configured as a labyrinth mechanism that engages in the radial direction.・Coupling device.