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1. 发明授权

US4911679A Tensioner for belts 失效
标题翻译：皮带张紧器
公开(公告)号：US4911679A
公开(公告)日：1990-03-27
申请号：US379502
申请日：1989-07-13
申请人： Hiroyuki Inoue , Yuichi Futami , Hiroshi Saisho , Kazuharu Yamada
发明人： Hiroyuki Inoue , Yuichi Futami , Hiroshi Saisho , Kazuharu Yamada
IPC分类号： F02B67/06 , F16H7/08 , F16H7/12
CPC分类号： F16H7/1236 , F16H2007/0806 , F16H2007/0859 , F16H2007/0891
摘要： A hydraulically damped tensioner for a belt transmission system. A piston slidable with clearance in a cylinder form front and rear oil-filled chambers communicating through a passage in the piston with a check valve for restricting flow from the rear chamber to the front chamber. A piston rod is urged through the front chamber and against a roller by a spring in the rear chamber imparting tension on the belt. An opening, sealed by a removable plug, communicate with the front chamber to provide access for filling oil in both chambers.
摘要翻译：一种用于皮带传动系统的液压阻尼张紧器。活塞可随空隙滑动的活塞形成前后充油室，其通过活塞中的通道与止回阀连通，用于限制从后室到前室的流动。活塞杆被推动通过前室并通过后室中的弹簧抵靠在辊上，赋予带上的张力。通过可拆卸塞子密封的开口与前室连通，以便在两个腔室中填充油。

2. 发明授权

US4457270A Hydraulic lifter 失效
标题翻译：液压升降机
公开(公告)号：US4457270A
公开(公告)日：1984-07-03
申请号：US483705
申请日：1983-04-11
申请人： Hisashi Kodama , Katsujiro Sato , Tetsuomi Tamura , Tooru Hamamoto , Kazuharu Yamada
发明人： Hisashi Kodama , Katsujiro Sato , Tetsuomi Tamura , Tooru Hamamoto , Kazuharu Yamada
IPC分类号： F01L1/24 , F01L1/245
CPC分类号： F01L1/245 , F01L2109/00
摘要： An oil-containing hydraulic lifter for lash adjustment comprising relatively movable cylinder and plunger members defining a pressure chamber between their closed ends and a reservoir chamber within the plunger. Means are provided for rapid, one-way flow of the oil from the reservoir to the pressure chamber during outward movement of the plunger and for slow, one-way flow from the pressure to the reservoir chamber during inward movement of the plunger. A flexible, bag-shaped diaphragm extending into the reservoir chamber has its open, upper end sealed liquid tightly to the inner wall of the reservoir for sealing in the oil while expanding and collapsing with reciprocation of the plunger. The reservoir chamber has an increased diameter at that part where the diaphragm undergoes most of its expansion and collapse, thereby spacing the inner wall of the reservoir chamber from the diaphragm by a distance great enough to allow full expansion of the diaphragm in the expanding and collapsing operation thereof. The effect is to greatly increase the volumetric change exhibited by the oil within the reservoir chamber during the reciprocation of the plunger, thereby enhancing lash adjusting performance.
摘要翻译：一种用于间隙调节的含油液压提升器，包括相对可移动的气缸和柱塞构件，其在其封闭端部之间限定压力室和柱塞内的储存室。提供装置用于在柱塞的向外运动期间将油从储存器快速地单向流动到压力室，并且用于在柱塞的向内运动期间从压力到储存室的缓慢单向流动。延伸到储存室中的柔性袋形隔膜具有开口的上端密封液体，紧密地连接到储存器的内壁，用于密封油中，同时随着柱塞的往复运动而膨胀和折叠。储存室在该部分处具有增加的直径，其中隔膜经历其大部分膨胀和塌陷，从而将储存室的内壁与隔膜间隔足够大的距离，以允许隔膜在膨胀和塌缩中完全膨胀操作。其效果是在柱塞往复运动的过程中，大大增加储槽内的油体积变化，从而增强间隙调整性能。

3. 发明授权

US4535734A Self-contained hydraulic lash adjuster 失效
标题翻译：独立液压间隙调节器
公开(公告)号：US4535734A
公开(公告)日：1985-08-20
申请号：US473421
申请日：1983-03-09
申请人： Hisashi Kodama , Tooru Hamamoto , Tetsuomi Tamura , Katsujiro Sato , Kazuharu Yamada
发明人： Hisashi Kodama , Tooru Hamamoto , Tetsuomi Tamura , Katsujiro Sato , Kazuharu Yamada
IPC分类号： F01L1/24 , F01L1/245
CPC分类号： F01L1/245 , F01L2109/00
摘要： A self-contained hydraulic lash adjuster having a cup-shaped body and a plunger slidably disposed therein is further provided with a flexible diaphragm secured within a reservoir chamber located in the plunger with one side of said diaphragm being exposed to the atmosphere and the other side being disposed in engagement with the oil supply sealed within the hydraulic lash adjuster. An oil passage is provided in the bottom of the plunger to communicate the reservoir chamber with a pressure chamber defined between the bottom of the plunger and the bottom of the body and a one-way check valve is provided to prevent the return flow of oil through the oil passage to the reservoir. A cup-shaped cover member having apertured side walls is located in the bottom of the plunger over the oil passage to prevent the diaphragm from blocking the oil passage upon deformation of the diaphragm.
摘要翻译：具有杯形主体和可滑动地设置在其中的活塞的独立液压间隙调节器还设置有固定在位于柱塞中的储存室内的柔性隔膜，所述隔膜的一侧暴露于大气，另一侧与密封在液压间隙调节器内的油源配合。在柱塞的底部设有油通道，以将储存室与定位在柱塞底部和主体底部之间的压力室连通，并提供单向止回阀以防止油通过通往油藏的油路。具有多孔侧壁的杯形盖构件位于油路的柱塞的底部，以防止膜片在隔膜变形时堵塞油路。

4. 发明授权

US4574750A Self-contained hydraulic lifter 失效
标题翻译：独立式液压升降机
公开(公告)号：US4574750A
公开(公告)日：1986-03-11
申请号：US521408
申请日：1983-08-08
申请人： Hisashi Kodama , Katsujiro Sato , Tetsuomi Tamura , Toru Hamamoto , Kazuharu Yamada
发明人： Hisashi Kodama , Katsujiro Sato , Tetsuomi Tamura , Toru Hamamoto , Kazuharu Yamada
IPC分类号： F01L1/245 , F01L1/24
CPC分类号： F01L1/245
摘要： A self-contained hydraulic lifter used in valve trains of internal combustion engines having a cylindrical body, a plunger arranged slidably therein, and a diaphragm arranged in the plunger. A metal ring is embedded in the upper portion of the diaphragm and the upper end of the metal ring is in contact with the stopper member fixed to the upper end of the plunger, thereby the sealability of the diaphragm being improved.
摘要翻译：用于具有圆柱形主体，可滑动地设置在其中的柱塞和设置在柱塞中的隔膜的内燃机的气门机构中的独立液压升降器。金属环被嵌入在隔膜的上部，并且金属环的上端与固定在柱塞上端的止动件接触，从而改善隔膜的密封性。

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