公开(公告)号：US4790796A

公开(公告)日：1988-12-13

申请号：US117537

申请日：1987-11-06

申请人： Yoshio Okabe ,  Yukimori Kobayashi ,  Eiji Shirai

发明人： Yoshio Okabe ,  Yukimori Kobayashi ,  Eiji Shirai

IPC分类号： F02B67/06 ,  F16H7/08 ,  F16H7/12

CPC分类号： F16H7/1272 ,  F16H7/08 ,  F16H7/0848 ,  F16H7/1236 ,  F02B67/06 ,  F16H2007/0806 ,  F16H2007/0812 ,  F16H2007/0859 ,  F16H2007/0891 ,  F16H7/0836

摘要： A free piston type auto-tensioner adjusts a tension of an engine timing belt for automobiles. The auto-tensioner includes a body, a plunger slidably disposed in the body to form a first oil chamber, a free piston slidably disposed in the body to form a second oil chamber, a first seal member disposed between the body and the piston, a second seal member disposed between the piston and a rod of the plunger, an oil passage formed in the plunger to establish an oil communication between the first and second oil chambers, a check valve disposed in the oil passage, a first spring biasing the plunger, and a second spring biasing the piston.

摘要翻译： 自由活塞式自动张紧器调节汽车发动机正时皮带的张力。 自动张紧器包括主体，可滑动地设置在主体中以形成第一油室的柱塞，可滑动地设置在主体中以形成第二油室的自由活塞，设置在主体和活塞之间的第一密封构件， 设置在所述活塞和所述柱塞杆之间的第二密封构件，形成在所述柱塞中以在所述第一和第二油室之间建立油连通的油通道，设置在所述油通道中的止回阀，施加所述柱塞的第一弹簧， 以及偏压所述活塞的第二弹簧。

公开(公告)号：US4798563A

公开(公告)日：1989-01-17

申请号：US130180

申请日：1987-12-08

申请人： Yoshio Okabe ,  Yukimori Kobayashi ,  Makoto Ishikawa ,  Tamotsu Kamiya ,  Tomiaki Atsumi

发明人： Yoshio Okabe ,  Yukimori Kobayashi ,  Makoto Ishikawa ,  Tamotsu Kamiya ,  Tomiaki Atsumi

IPC分类号： F16H7/08 ,  F16H7/12

CPC分类号： F16H7/1236 ,  F16H7/1281 ,  F16H2007/0812 ,  F16H2007/0859

摘要： A self-contained type automatic belt tensioner adjusts a tension of an engine timing belt for automobiles. The tensioner comprises a body, a plunger slidably mounted in the body, a reservoir chamber located in the plunger, a pressure chamber disposed between the plunger and a closed wall of the body, a rod member fixed to the plunger, a bellows shaped elastic diaphragm located in the reservoir chamber with one end thereof being fixed to the rod member and the other end being fixed to the body, a check valve allowing a fluid flow only from the reservoir chamber to the pressure chamber, and a return spring interposed between the plunger and the closed wall of the body so as to bias said plunger in the direction of the rod member.

摘要翻译： 独立式自动皮带张紧器调节汽车发动机正时皮带的张力。 张紧器包括主体，可滑动地安装在主体中的柱塞，位于柱塞中的储存室，设置在柱塞和主体的封闭壁之间的压力室，固定到柱塞的杆构件，波纹管形弹性隔膜 位于储存室中，其一端固定在杆构件上，另一端固定在主体上，止回阀仅允许流体从贮存室流到压力室;以及复位弹簧，插在柱塞之间 和主体的封闭壁，以便沿着杆构件的方向偏压所述柱塞。

公开(公告)号：US4925436A

公开(公告)日：1990-05-15

申请号：US252046

申请日：1988-09-30

申请人： Masaharu Hayashi ,  Hisashi Kodama ,  Yoshio Okabe ,  Yukimori Kobayashi ,  Eiji Shirai

发明人： Masaharu Hayashi ,  Hisashi Kodama ,  Yoshio Okabe ,  Yukimori Kobayashi ,  Eiji Shirai

IPC分类号： F16F9/10 ,  F16H7/12

CPC分类号： F16H7/1263

摘要： For preventing very small amplitude vibrations of the rod in a tensioner during high speed movement of a belt to be tensioned by the tensioner, a tube which is connected to a plunger which moves together with the rod is overlapped with a stationary member so as to define an annular clearance therebetween in an operating chamber of the tensioner. By filling an operating fluid in the clearance, shear strain is generated upon high speed movement of the plunger, which resists movement of the plunger.

摘要翻译： 为了防止由张紧器张紧的皮带的高速运动期间张紧器中杆的非常小的振幅振动，连接到与杆一起移动的柱塞的管与固定构件重叠以便限定 在张紧器的操作室中的环形间隙。 通过将工作流体填充在间隙中，在柱塞的高速运动时产生剪切应变，其抵抗柱塞的移动。

公开(公告)号：US5104359A

公开(公告)日：1992-04-14

申请号：US583312

申请日：1990-09-17

申请人： Eiji Shirai ,  Yoshio Okabe ,  Yukimori Kobayashi

发明人： Eiji Shirai ,  Yoshio Okabe ,  Yukimori Kobayashi

IPC分类号： F16H7/08 ,  F16H7/12

CPC分类号： F16H7/1236 ,  F16H2007/0859 ,  F16H2007/0891

摘要： A tensioner for vehicle belts produces reduced rattling because radial forces are not transferred to the plunger. A tensioner body has a columnar hole extending from an open end toward a closed end. The plunger is fitted into the columnar hole and separates the columnar hole into first and second chambers. The plunger has sufficient clearance with respect to the body to permit restricted passage of fluid between the chambers. A rod pressed by the belt extends into the columnar hole and presses the plunger against the biasing force of a spring. In order to reduce the transfer of radial forces from the rod to the plunger, either the lower surface of the rod or the upper surface of the plunger is formed in a semi-spherical shape.

摘要翻译： 由于径向力不传递到柱塞，因此车辆皮带张紧器会产生减小的晃动。 张紧器主体具有从开口端朝向封闭端延伸的柱状孔。 将柱塞装入柱状孔，将柱状孔分离成第一和第二腔。 柱塞相对于主体具有足够的间隙，以允许液体在腔室之间的限制通过。 带被按压的杆延伸到柱状孔中并克服弹簧的偏置力而压住柱塞。 为了减少从杆到柱塞的径向力的传递，杆的下表面或柱塞的上表面形成为半球形。

公开(公告)号：US4770137A

公开(公告)日：1988-09-13

申请号：US827573

申请日：1986-02-10

申请人： Yoshio Okabe ,  Yukimori Kobayashi

发明人： Yoshio Okabe ,  Yukimori Kobayashi

IPC分类号： F01L13/00 ,  F02B77/00

CPC分类号： F01L13/0005

摘要： A cylinder control device for a variable-cylindered engine. The device comprises a body slidable within a bore formed in a block and urged by a spring always in contact with a cam, a plunger mounted in the body and slidable by hydraulic pressure in the direction perpendicular to the direction of sliding of the body, the plunger having a groove which is adapted to be engaged by the upper end of a valve stem 40 and an escape bore which is adapted to be positioned right above the upper end of the valve stem when the plunger is slided to a cylinder-inoperative position; and means for controlling said application of the hydraulic pressure to the plunger under the control of a computer. When the computer provides an instruction for normal operation of the cylinder, the plunger is held at a position where the upper end of the valve stem engages with the groove in the plunger so that, when the cam is rotated, the valve stem is depressed through the body thereby to open the valve port, whereas, when the hydraulic pressure is applied to the plunger so as to urge the plunger to a valve-inoperative position, the upper end of the valve stem escapes into the escape bore in the plunger when the body is depressed by the cam, so that the valve stem is not depressed and the valve is kept closed, thereby keeping the cylinder inoperative.

摘要翻译： 一种用于可变圆筒发动机的气缸控制装置。 该装置包括一个主体，该主体可以在一个形成在一块内的孔中滑动，并由一个与凸轮总是接触的弹簧推动，柱塞安装在本体中，并且可以通过液压在与主体滑动方向垂直的方向上滑动。 柱塞具有适于被阀杆40的上端接合的凹槽和当柱塞滑动到气缸不工作位置时适于定位在阀杆的上端正上方的排泄孔; 以及用于在计算机的控制下控制所述液压施加到柱塞的装置。 当计算机提供用于汽缸的正常操作的指令时，柱塞被保持在阀杆的上端与柱塞中的槽接合的位置，使得当凸轮旋转时，阀杆被压下 阀体由此打开阀口，而当液压施加到柱塞上以便将柱塞推到阀门不工作位置时，阀杆的上端在柱塞中逸出进入排出孔 主体被凸轮压下，使得阀杆不被压下并且阀保持关闭，从而保持气缸不起作用。

公开(公告)号：US4911680A

公开(公告)日：1990-03-27

申请号：US328498

申请日：1989-03-24

申请人： Hisashi Kodama ,  Yoshio Okabe ,  Yukimori Kobayashi

发明人： Hisashi Kodama ,  Yoshio Okabe ,  Yukimori Kobayashi

IPC分类号： F16F9/32 ,  F16H7/08 ,  F16H7/12

CPC分类号： F16H7/08 ,  F16H7/0848 ,  F16H7/1236 ,  F16H2007/0812 ,  F16H2007/0859 ,  F16H2007/0891

摘要： A hermetically sealed autotensioner used for adjusting tension of engine belts comprises a cylinder, a plunger slidably fitted in the cylinder and having a rod projeced from the cylinder, a free piston slidably fitted in the cylinder, and a rod guide fitted in the tip portion of the cylinder so as to slidably support the rod. When a large thrust force acts on the rod, the rod guide serves as a bearing for the rod so that no scuffing or rocking motion occurs between the cylinder and the plunger.

摘要翻译： 用于调节发动机皮带张力的密封式自动张紧器包括一气缸，可滑动地安装在气缸中的柱塞，并具有一个从气缸上推出的杆，一个可滑动地装在气缸中的自由活塞， 气缸，以便可滑动地支撑杆。 当大的推力作用在杆上时，杆引导件用作杆的轴承，使得缸和柱塞之间不会发生磨损或摇摆运动。

公开(公告)号：US4858572A

公开(公告)日：1989-08-22

申请号：US252054

申请日：1988-09-30

申请人： Eiji Shirai ,  Yoshio Okabe ,  Yukimori Kobayashi

发明人： Eiji Shirai ,  Yoshio Okabe ,  Yukimori Kobayashi

IPC分类号： F01L1/34 ,  F01L1/344

CPC分类号： F01L1/3442 ,  F01L2001/34426 ,  F01L2001/34459 ,  F01L2001/34473

摘要： For adjusting an angular phase difference between an engine crank shaft and an engine cam shaft, fluid under pressure is supplied into one or more chambers defined therebetween. The adjusted condition is maintained or held by mechanical engagement between both shafts.

摘要翻译： 为了调节发动机曲柄轴和发动机凸轮轴之间的角度相位差，在压力下的流体被供给到在它们之间限定的一个或多个室中。 通过两轴之间的机械接合维持或保持调节状态。

公开(公告)号：US4527462A

公开(公告)日：1985-07-09

申请号：US597352

申请日：1984-04-06

申请人： Yoshio Okabe

发明人： Yoshio Okabe

IPC分类号： F16H7/08 ,  F01B7/20

CPC分类号： F16H7/08 ,  F16H2007/0806 ,  F16H2007/0891

摘要： A sealed-type automatic tensioner has a body assembly composed of upper and lower tubular bodies held in threaded engagement with each other, a tubular plunger slidably disposed in the body assembly, a piston slidably disposed in the tubular plunger and having a portion extending slidably through a hole in a top wall of the upper tubular body. The lower tubular body and the tubular plunger jointly define a larger-diameter hydraulic chamber, and the tubular plunger and the piston jointly define a smaller-diameter hydraulic chamber. A bottom wall of the tubular plunger has an aperture through which the larger- and smaller-diameter chambers communicate with each other. A compression coil spring is disposed in the first tubular body and acts between the top wall of the upper tubular body and the tubular plunger for normally urging the tubular plunger to move into the larger-diameter chamber.

摘要翻译： 密封型自动张紧器具有由彼此螺纹接合的上和下管状体组成的主体组件，可滑动地设置在主体组件中的管状柱塞，可滑动地设置在管状柱塞中的活塞，并且具有可滑动地延伸的部分 在上管状体的顶壁中的孔。 下管状体和管状柱塞联合地限定较大直径的液压室，并且管状柱塞和活塞共同限定较小直径的液压室。 管状柱塞的底壁具有孔，大直径室和小直径室通过该孔彼此连通。 压缩螺旋弹簧设置在第一管状体中并且作用在上管状体的顶壁和管状柱塞之间，用于正常地推动管状柱塞移动到较大直径的腔室中。

公开(公告)号：US4462353A

公开(公告)日：1984-07-31

申请号：US482445

申请日：1983-04-06

申请人： Fuminao Arai ,  Hisashi Kodama ,  Yoshio Okabe

发明人： Fuminao Arai ,  Hisashi Kodama ,  Yoshio Okabe

IPC分类号： F01L1/24 ,  F01L1/34 ,  F01L13/00 ,  F02D13/06

CPC分类号： F01L13/0005 ,  F01L1/2405 ,  F01L1/34 ,  F01L2001/188

摘要： A variable cylinder device for internal combustion engines comprising an adjuster coupled to a rocker arm of an intake or exhaust valve lift mechanism so as to define a first rocking point of said rocker arm, the lash adjuster having a check ball which is pushed by the operation of a solenoid valve when the engine load is reduced to a small order, as the result of which the rocking point of the rocking arm shifts from the first rocking point to a second rocking point wherein the intake or exhaust valve maintains the closed position.

摘要翻译： 一种用于内燃机的可变气缸装置，包括调节器，该调节器联接到进气门或排气门提升机构的摇臂，以便限定所述摇臂的第一摆动点，所述间隙调节器具有由所述操作推动的止回球 当发动机负载减小到小的次数时，由于摇臂的摆动点从第一摇摆位置移动到第二摇摆点，其中进气门或排气门维持关闭位置，所以电磁阀的位置。

公开(公告)号：US4657524A

公开(公告)日：1987-04-14

申请号：US756648

申请日：1985-07-19

申请人： Yoshio Okabe

发明人： Yoshio Okabe

IPC分类号： F16H7/08 ,  F16H7/12

CPC分类号： F16H7/129 ,  F16H2007/0806 ,  F16H2007/0859 ,  F16H2007/0893

摘要： A self-contained tensioning device for a belt or similar structure and which includes a plunger slidably mounted in a body member, a free piston slidably mounted in the plunger and having a head portion extending from a shoulder of the body member and which contacts with an idler pulley so as to apply a tensioning face to the belt, a projection provided on the shoulder and projecting axially so as to minimize the distance between a portion of the idler pulley contacting the head portion and the shoulder of the body member.

摘要翻译： 一种用于带或类似结构的独立张紧装置，其包括可滑动地安装在主体构件中的柱塞，可滑动地安装在柱塞中的自由活塞，并且具有从主体构件的肩部延伸并且与主体构件接触的头部 惰轮，以便将张紧面施加到带上，突起设置在肩部上并且轴向突出，以使得接触头部的惰轮的一部分与主体构件的肩部之间的距离最小化。