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11. 发明授权

US09982759B2 Hydraulic auto-tensioner 有权
公开(公告)号：US09982759B2
公开(公告)日：2018-05-29
申请号：US14370067
申请日：2012-12-21
申请人： Tadahisa Tanaka , Satoshi Kitano , Takehiro Takano
发明人： Tadahisa Tanaka , Satoshi Kitano , Takehiro Takano
IPC分类号： F16H7/08 , F16H7/12
CPC分类号： F16H7/08 , F16H7/1236 , F16H2007/0806 , F16H2007/0814 , F16H2007/0859 , F16H2007/0893
摘要： A hydraulic auto-tensioner includes a sleeve having its bottom end press-fitted in a sleeve fitting hole in the bottom surface of a cylinder, a rod having its bottom end slidably fitted in the sleeve, and a return spring mounted between a spring support at the upper portion of the rod and the bottom surface of the cylinder. A pressure chamber communicates with a reservoir chamber through a passage formed between fitting surfaces of the sleeve fitting hole and the sleeve. The passage has a check valve. The rod has a valve fitting hole and a communication passage through which the valve fitting hole communicates with the reservoir chamber. The valve fitting hole has a relief valve. An orifice is formed between a valve hole formed in a valve seat of the relief valve and a valve body to prevent a sharp drop in pressure in the pressure chamber.

12. 发明授权

US09581199B2 Fulcrum bearing device for pulley arm 有权
标题翻译：鼓轮轴承装置
公开(公告)号：US09581199B2
公开(公告)日：2017-02-28
申请号：US14438233
申请日：2013-10-23
申请人： Tadahisa Tanaka , Seiji Sato , Takehiro Takano
发明人： Tadahisa Tanaka , Seiji Sato , Takehiro Takano
IPC分类号： F16C17/02 , F16C33/74 , F16H7/12 , F16H7/08
CPC分类号： F16C33/74 , F16C2361/63 , F16H7/12 , F16H7/1281 , F16H2007/0893
摘要： In a fulcrum bearing device for a pulley arm, a sleeve is inserted in a shaft hole formed in a boss portion of a pulley arm, washers are fitted on the outer peripheries of small diameter tube portions formed at the respective end portions of the sleeve, and the sleeve is fixed to an engine block by means of a bolt inserted through the sleeve and tightened, so that the pulley arm is pivotally supported. The shaft hole is formed at its respective end portions with seal receiving recesses having large diameters. Each seal member includes a cylindrical portion provided on its outer peripheral portion and press-fitted in the seal receiving recess, and a radial lip extending obliquely inwardly and provided on the inner periphery of the seal member. The distal end portions of the radial lips are kept in elastic contact with the outer diameter surface of the sleeve.
摘要翻译：在用于带轮臂的支点支承装置中，套筒插入形成在带轮臂的凸起部分的轴孔中，垫圈安装在形成在套筒的各个端部处的小直径管部分的外周，并且通过插入穿过套筒的螺栓将套筒固定到发动机缸体上并被紧固，使得滑轮臂被枢转地支撑。轴孔在其各自的端部处形成有具有大直径的密封接收凹部。每个密封构件包括设置在其外周部分上并压配合在密封件容纳凹部中的圆柱形部分，以及倾斜向内延伸并设置在密封构件的内周上的径向唇缘。径向唇缘的远端部分与套筒的外径表面保持弹性接触。

13. 发明申请

US20080020876A1 Tension Adjusting Device for Engine Accessory Driving Belt 有权
标题翻译：发动机配件驱动带张力调节装置
公开(公告)号：US20080020876A1
公开(公告)日：2008-01-24
申请号：US10582405
申请日：2004-12-16
申请人： Tadahisa Tanaka
发明人： Tadahisa Tanaka
IPC分类号： F16H7/12
CPC分类号： F16H7/0836 , F16C33/74 , F16C2361/63 , F16H7/129 , F16H2007/0806 , F16H2007/0859
摘要： A tension adjusting device for an engine accessory driving belt is provided which can maintain high sealability in the bearing portion about which a pulley arm supporting a tension pulley pivots for a long period of time.By tightening a bolt 7 threaded into an engine block 8, a fulcrum shaft 6 is fixed. A tension pulley is rotatably supported by a pulley arm 2 pivotally supported about the fulcrum shaft 6. A regulating force of a hydraulic auto-tensioner is applied to the pulley arm 2 to press the tension pulley against the belt B. A washer 10 is disposed between a boss 3 formed on the pulley arm 2 and the head 7a of the bolt 7. The washer 10 has an outer cylindrical portion 11 covering one end of the boss 3. A slinger 12 is mounted on the end of the boss 3 to define a labyrinth 13 between the slinger 12 and the cylindrical portion 11, thereby preventing entry of muddy water and dust into the bearing portion pivotally supporting the pulley arm 2.
摘要翻译：提供了一种用于发动机附件驱动带的张力调节装置，其能够在支撑张力皮带轮的滑轮臂长时间旋转的轴承部分中保持高密封性。通过拧紧拧入发动机缸体8的螺栓7，支轴6被固定。张力滑轮由可枢转地支撑在支轴6上的滑轮臂2可旋转地支撑。液压自动张紧器的调节力被施加到滑轮臂2上以将张力滑轮压靠在皮带B上。设置垫圈10 在形成在滑轮臂2上的凸台3和螺栓7的头部7a之间。垫圈10具有覆盖凸台3的一端的外圆筒形部分11.抛油环12安装在凸台3的端部上在抛油环12和圆筒部分11之间限定一个迷宫13，从而防止泥浆水和灰尘进入枢轴支撑滑轮臂2的轴承部分。

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