JPS62106042U

JPS62106042U -

Info

Publication number: JPS62106042U
Application number: JP19826585U
Authority: JP
Priority date: 1985-12-25
Filing date: 1985-12-25
Publication date: 1987-07-07

Description

[Brief explanation of the drawing]

第１図は本考案の第１実施例に係る曲げダンパ
付フライホイールの正面図、第２図は第１図の
―線に沿う断面図、第３図はクランクシヤフト
にダイナミツクダンパを有するフライホイールを
取付けた場合とダンパなしフライホイールを取付
けた場合の車内騒音レベルを示した特性図、第４
図は３自由度振動系を説明した説明図、第５図は
第４図における振動数と振動レベルとの関係を示
した関係図、第６図は本考案の第２実施例に係る
曲げダンパ付フライホイールの正面図、第７図は
第６図の―線に沿う拡大断面図、第８図は本
考案の第３実施例に係る曲げダンパ付フライホイ
ールの正面図、第９図は直列４気筒エンジンにお
けるクランクシヤフトのクランクピンの位置関係
を示した斜視図、第１０図は本考案の第４実施例
に係る曲げダンパ付フライホイールの正面図、第
１１図はクランクシヤフトの前端部に取付けられ
るダンパプーリの断面図、である１１……フライホイール、１１ｂ……クラツチ
面、１１ｃ……シリンダブロツク側の面、１５…
…板状部材、１８，４０……弾性体としてのゴム
、１９，３０……ダンパマス、２０……ダイナミ
ツクダンパ、２１……スリツト部、３０ａ……重
いダンパマス、３０ｂ……軽いダンパマス、４０
ａ……剛性の低いゴム、４０ｂ……剛性の高いゴ
ム。 FIG. 1 is a front view of a flywheel with a bending damper according to a first embodiment of the present invention, FIG. 2 is a sectional view taken along the line - in FIG. Characteristic diagram showing the noise level inside the car when a wheel is installed and when a flywheel without a damper is installed, Part 4
The figure is an explanatory diagram explaining a three-degree-of-freedom vibration system, Figure 5 is a relationship diagram showing the relationship between the vibration frequency and vibration level in Figure 4, and Figure 6 is a bending damper according to the second embodiment of the present invention. 7 is an enlarged sectional view taken along line - in FIG. 6, FIG. 8 is a front view of the flywheel with bending damper according to the third embodiment of the present invention, and FIG. 9 is a series view. FIG. 10 is a front view of a flywheel with a bending damper according to the fourth embodiment of the present invention, and FIG. 11 is a perspective view showing the positional relationship of crank pins of a crankshaft in a four-cylinder engine. This is a sectional view of the damper pulley to be attached. 11...Flywheel, 11b...Clutch surface, 11c...Cylinder block side surface, 15...
... Plate member, 18, 40 ... Rubber as elastic body, 19, 30 ... Damper mass, 20 ... Dynamic damper, 21 ... Slit part, 30a ... Heavy damper mass, 30b ... Light damper mass, 40
a...Rubber with low rigidity, 40b...Rubber with high rigidity.

Claims

[Claims for Utility Model Registration] (1) A plate member that bulges outward in the radial direction is attached to the cylinder block side of the flywheel connected to the crankshaft, and on the outer periphery of the plate member,
A flywheel with a bending damper characterized by being equipped with a dynamic damper consisting of an elastic body and a damper mass. (2) A flywheel with a bending damper according to claim 1, wherein the plate member is provided with a cooling slit portion. (3) The flywheel with a bending damper according to claim 1, wherein the weight of the damper mass is changed in the direction of the rotation angle of the class shaft. (4) The flywheel with a bending damper according to claim 1, wherein the rigidity of the elastic body is changed in the direction of the rotation angle of the crankshaft.