公开(公告)号：US5592906A

公开(公告)日：1997-01-14

申请号：US392983

申请日：1995-03-03

Applicant: Peter Kreuter ,  Joachim Reinicke-Murmann ,  Peter Heuser

Inventor： Peter Kreuter ,  Joachim Reinicke-Murmann ,  Peter Heuser

IPC: F01L1/04 ,  F01L1/18 ,  F01L1/24 ,  F01L1/245 ,  F01L1/26 ,  F01L13/00 ,  F02B1/04

CPC classification number: F01L13/0047 ,  F01L1/18 ,  F01L1/2405 ,  F01L1/245 ,  F01L1/267 ,  F01L2103/01 ,  F01L2105/00 ,  F01L2800/13 ,  F02B1/04

Abstract: A method and a device for the variable control of a valve of an internal combustion engine, in particular for a throttlefree load control of an Otto carburetor engine via a lift function of one or several intake valves per cylinder are presented. Thereby the cams of two camshafts which normally rotate at the same speed are followed by a feeler-device in the manner of an adder and the movement of the feeler-device is transferred to an actuating device for actuating the valve. The cams of one of the camshafts which operates as the opening camshaft is provided with a flat section and a lobe which pass into each other via an opening portion. The cam of the other one of the camshafts which operates as the closing camshaft is provided with a lobe and a flat section which pass into each other via a closing portion. For altering the lift and/or opening duration of the valve the phase relationship between the camshafts is changeable. The feeler-device is, after the closing of the valve, held in contact with the cam of only one of the camshafts, and through this the actuating device is held in contact with the valve. The cam of the other camshaft gets out of contact with the feeler device after the closing of the valve and at the beginning of opening of the valve again gets into contact with the feeler device.

Abstract translation: PCT No.PCT / DE94 / 00786 Sec。 371日期1995年3月3日 102（e）1995年3月3日PCT PCT 1994年7月6日PCT公布。 公开号WO95 / 02116 日期1995年1月19日提出了一种用于内燃机的阀的可变控制的方法和装置，特别是用于通过每缸一个或多个进气门的升程功能的奥托化油器发动机的无节气负载控制。 因此，通常以相同速度旋转的两个凸轮轴的凸轮之后是加法器的触角装置，并且触发器装置的移动被传递到用于致动阀的致动装置。 用作打开凸轮轴的凸轮轴之一的凸轮设置有通过开口部分彼此通过的平坦部分和凸角。 用作闭合凸轮轴的另一个凸轮轴的凸轮设置有通过闭合部分彼此通过的凸角和平坦部分。 为了改变阀的提升和/或打开持续时间，凸轮轴之间的相位关系是可变的。 触发器装置在阀关闭之后与仅凸轮轴中的一个凸轮保持接触，并且通过该致动装置保持与阀接触。 在关闭阀门之后，另一凸轮轴的凸轮与触发器装置脱离接触，并且在阀开启时再次与触发器装置接触。

公开(公告)号：US5566652A

公开(公告)日：1996-10-22

申请号：US540606

申请日：1995-10-06

Applicant: David W. Deppe

Inventor： David W. Deppe

IPC: F01L1/14 ,  F01L1/18 ,  F01L1/245 ,  F01M9/10 ,  F01L1/16

CPC classification number: F01L1/185 ,  F01L1/14 ,  F01L1/143 ,  F01L1/146 ,  F01L1/181 ,  F01L1/245 ,  F01M9/104 ,  F01M9/107 ,  F01L2105/02 ,  F01L2810/02 ,  Y10T74/2107

Abstract: A roller cam follower for an internal combustion engine. The cam follower includes a roller assembly consisting of an insert member formed of a conformable plastic material and an axleless roller received in a cavity formed in the insert, the material of the insert closely conforming to the contour of the roller. Various adaptations of the inventive cam follower structure are shown; including a light weight mechanical valve lifter, a hydraulic lash adjuster, a rocker arm and a mechanical direct acting tappet; all of which include means for conducting oil from the exterior of the cam follower to the roller cavity.

Abstract translation: 一种用于内燃机的滚子凸轮从动件。 凸轮从动件包括一个辊组件，该组件由一个由适形塑料材料形成的插入件和一个容纳在形成在插入件中的空腔中的无轴辊组成，该插入件的材料与滚子的轮廓紧密相符。 示出了本发明的凸轮从动件结构的各种适应性; 包括轻型机械气门挺杆，液压间隙调节器，摇臂和机械直动挺杆; 所有这些都包括用于将油从凸轮从动件的外部传导到辊腔的装置。

公开(公告)号：US5241927A

公开(公告)日：1993-09-07

申请号：US963986

申请日：1992-10-20

Applicant: Eugene W. Rhoads

Inventor： Eugene W. Rhoads

IPC: F01L1/245 ,  F01L13/00

CPC classification number: F01L1/245 ,  F01L13/0031

Abstract: An internal combustion engine is provided with variable duration valve lifters on the exhaust valve train having response characteristics that are different from the valve lifters on the intake valve train. Either the intake valve train can be fitted with variable duration valve lifters having diminished or reduced bleed channel characteristics or stock valve (no bleed channel) lifters may be employed. In both events, the exhaust valves fitted with variable duration valve lifters with relatively greater bleed channel flow characteristics (as compared to intake valves) will open to a progressively greater degree in the mid range to high RPM engine speeds. The particular optimal engine functioning is achieved by precisely matching in a complementary fashion the appropriate degree of variable duration valve bleed flow channel size to the particular cam profile of the engine in use. By this means, better evacuation of exhaust gasses at mid to high engine speeds is achieved without adversely affecting engine performance at low speeds.

Abstract translation: 内燃机在排气阀列上设置有可变持续时间的气门挺杆，其具有与进气阀系列上的气门挺杆不同的响应特性。 进气阀系可以安装具有减小或减小的排放通道特性的可变持续时间的气门挺杆，或者可以采用储气阀（不排气通道）提升器。 在这两种情况下，配有可变持续时间的气门挺杆的排气阀具有相对较大的排气通道流动特性（与进气阀相比）将在中档范围内逐渐升高至高RPM发动机转速。 特定的最佳发动机功能通过以适当的方式精确地匹配适当程度的可变持续时间的阀排出流道尺寸与使用中的发动机的特定凸轮轮廓来实现。 通过这种方式，在中等到高的发动机转速下更好地排出排气，而不会在低速下对发动机性能造成不利影响。

公开(公告)号：US4846121A

公开(公告)日：1989-07-11

申请号：US253517

申请日：1988-10-05

Applicant: Alexander H. Galaniuk

Inventor： Alexander H. Galaniuk

IPC: F01L1/16 ,  F01L1/245

CPC classification number: F01L1/245 ,  F01L1/16 ,  F01L1/14 ,  F01L2105/00 ,  F01L2107/00

Abstract: A tappet assembly for use in the valve train of an automotive type internal combustion engine has a roller at one end adapted to be engaged by the cam lobe of a camshaft for that engine. A spring biased piston is incorporated in the assembly for movement into frictional engagement with the roller at low engine speeds to dampen out vibrational or shaking forces present in the engine at this speed level by increasing the resistance to rotation of the roller. At higher engine speeds, the piston is moved progressively away from frictional contact with the roller by engine oil galley oil pressure, which increases with engine speed, to a point where the piston is completely removed from engagement with the roller and the roller is permitted to freely rotate at a point when the engine vibration or shaking forces are no longer present.

公开(公告)号：US4589384A

公开(公告)日：1986-05-20

申请号：US640756

申请日：1984-08-14

Applicant: Vern D. Ott

Inventor： Vern D. Ott

IPC: F01L1/14 ,  F01L1/245 ,  F01L1/24

CPC classification number: F01L1/146 ,  F01L1/245

Abstract: A valve lifter assembly for a pushrod-operated internal combustion engine has a housing provided with a novel system of oilways which allow separate lubrication of each of two cylinders within which the tappets slide. The tappets comprise a body member, a hydraulic lifter disposed within a socket in the body member and a cap above the hydraulic lifter, the tappet being so designed that the socket on the cap which receives the lower end of the pushrod actually lies within the body member. The valve lifter assembly has a pushrod in which the threaded section of the adjusting member has a pair of flat, parallel surfaces on opposed sides thereof so that the threaded section, rather than a separate hexagonal section, can be grasped by a wrench for adjustment of the length of the pushrod.

Abstract translation: 用于推进式内燃机的气门挺杆组件具有壳体，该壳体设置有新的油路系统，其允许在挺杆滑动的两个气缸中的每一个的单独润滑。 挺杆包括主体构件，设置在主体构件中的插座内的液压升降器和液压升降器上方的盖，挺杆被设计成使得接收推杆下端的盖上的插座实际上位于主体内 会员。 阀提升器组件具有推杆，调节构件的螺纹部分在其中在其相对侧上具有一对平坦的平行表面，使得螺纹部分而不是单独的六边形部分可以通过扳手来抓握，以调整 推杆的长度。

公开(公告)号：US4475490A

公开(公告)日：1984-10-09

申请号：US383300

申请日：1982-05-28

Applicant: Katsuyasu Oono ,  Gozo Kaji

Inventor： Katsuyasu Oono ,  Gozo Kaji

IPC: F01L1/24 ,  F01L1/245 ,  F01L1/14

CPC classification number: F01L1/245 ,  Y10T29/49247

Abstract: The present invention proposes a hydraulic valve lifter used in an internal combustion engine. The valve lifter has a body consisting of a hollow cylindrical portion accommodating a cylindrical plunger and a lower end portion engaging with a cam controlling the valve motion. The two portions are joined together by welding. The bottom of the plunger is cut out annularly for preventing interference between the plunger and flash, which flash is caused by welding and remains in the inner recess of the lifter body.

Abstract translation: 本发明提出了一种在内燃机中使用的液压气门挺杆。 气门挺杆具有由容纳圆筒形柱塞的中空圆柱形部分和与控制阀运动的凸轮接合的下端部分的主体。 两部分通过焊接连接在一起。 柱塞的底部被环形切割，以防止柱塞和闪光体之间的干涉，该闪光由焊接引起，并且保持在升降机主体的内凹部中。

公开(公告)号：US4470382A

公开(公告)日：1984-09-11

申请号：US390155

申请日：1982-06-21

Applicant: Naoto Muto

Inventor： Naoto Muto

IPC: F01L1/18 ,  F01L1/24 ,  F01L1/245

CPC classification number: F01L1/2405 ,  F01L1/245

Abstract: A valve lash adjuster for a horizontally opposed engine in which valves are horizontally disposed and the adjuster for each valve is also horizontally disposed. The adjuster has a cylindrical body and a hollow plunger. The tip end of the plunger engages with a rocker arm of a valve lifting device of the engine. The plunger has a ball check valve for trapping oil in a pressure chamber defined behind the plunger and is outwardly biased by a spring for taking up clearance in the valve train. Passages are provided for supplying the lubricating oil into an annular groove provided around the cylindrical body. The passages are located at such positions that the oil remains in the groove. The inside chamber of the plunger is communicated with the annular groove through a hole located to communicate with the annular groove at the oil remaining zone, so that the oil is maintained in the inside chamber of the plunger and the pressure chamber.

Abstract translation: 用于水平对置的发动机的阀间隙调节器，其中水平地设置阀，并且每个阀的调节器也水平设置。 调节器具有圆柱体和中空柱塞。 柱塞的前端与发动机的气门提升装置的摇臂接合。 柱塞具有球止回阀，用于将油捕获在限定在柱塞后面的压力室中，并由弹簧向外偏压以吸入气门机构中的间隙。 提供通道用于将润滑油供应到围绕圆柱体设置的环形槽中。 通道位于油保留在槽中的位置。 柱塞的内部腔室通过位于与剩余油区域处的环形槽连通的孔与环形槽连通，使得油保持在柱塞的内部腔室和压力室中。

公开(公告)号：US4462364A

公开(公告)日：1984-07-31

申请号：US425775

申请日：1982-09-28

Applicant: Hisashi Kodama

Inventor： Hisashi Kodama

IPC: F01L1/245 ,  F01L1/34

CPC classification number: F01L1/245

Abstract: An hydraulic lash adjuster is provided with a hollow cylindrical body having a closed bottom at one end thereof and a hollow cylindrical plunger having an apertured bottom at one end thereof slidably disposed within the body to define a reservoir chamber within said plunger and a pressure chamber between the bottom of said cylinder. A spring biased check valve is located within said pressure chamber in operative association with the apertured bottom of said plunger to control the flow of fluid from the reservoir chamber to the pressure chamber. A cup-shaped cap is provided at the outer end of the plunger for engagement with a push rod of a valve mechanism and is provided with a passage communicating the interior of the plunger with the exterior. An annular valve seat ring is slidably disposed within the plunger to divide the reservoir into an upper chamber adjacent the cup-shaped cap and a lower chamber adjacent the bottom of the plunger and the second check valve located in the lower reservoir chamber is spring biased into engagement with the valve seat for controlling the flow of fluid from the upper reservoir chamber to the lower reservoir chamber. First and second annular grooves are formed in the outer surface of the body and the plunger and a port is located in the bottom of each groove with the ports and grooves being located relative to each other for the passage of a fluid from the outside of said body to the upper reservoir chamber.

Abstract translation: 液压间隙调节器设置有中空圆柱体，其一端具有封闭的底部，中空圆柱形柱塞在其一端具有有孔的底部，其可滑动地设置在主体内，以在所述柱塞内限定储存室， 所述气缸的底部。 弹簧偏压止回阀位于所述压力室内，与所述柱塞的有孔底部可操作地相关联，以控制流体从储存室到压力室的流动。 在柱塞的外端处设置有杯形盖，用于与阀机构的推杆接合，并且设置有将柱塞的内部与外部连通的通道。 环形阀座环可滑动地设置在柱塞内，以将储存器分隔成邻近杯状盖的上部室和邻近柱塞的底部的下部室，并且位于下部储存室中的第二止回阀被弹簧偏压成 与阀座接合，用于控制从上储存室到下贮存室的流体流动。 第一和第二环形槽形成在主体的外表面和柱塞中，并且端口位于每个槽的底部中，其中端口和槽相对于彼此定位，以使流体从所述 身体到上部储存室。

公开(公告)号：US4218995A

公开(公告)日：1980-08-26

申请号：US944137

申请日：1978-09-20

Applicant: Syunichi Aoyama

Inventor： Syunichi Aoyama

IPC: F01L13/00 ,  F01L1/14 ,  F01L1/245 ,  F01L1/34 ,  F01L1/24

CPC classification number: F01L1/245

Abstract: A hollow cylinder is slidably received in a bore formed through an engine block with its closed end in contact with a lobed cam mounted on a camshaft, and a piston connected to a push rod is received in an end portion of the bore. A plunger disposed in the bore partly intrudes into the cylinder so as to define a first oil pressure chamber in the cylinder and a second oil pressure chamber between the plunger and the piston. When oil pressure applied to the first chamber is decreased as the engine speed lowers, the plunger moves toward the first chamber to allow the second chamber to communicate with an oil-reserving chamber through a hole. The amount of valve lift in a medium oil pressure range depends on the degree of closing of this hole by the plunger which is moved together with the cylinder by the rotating cam.

Abstract translation: 中空圆柱体可滑动地容纳在通过发动机缸体形成的孔中，其封闭端与安装在凸轮轴上的凸角凸轮接触，并且连接到推杆的活塞被容纳在孔的端部中。 设置在孔中的柱塞部分地插入气缸中，以便在气缸中限定第一油压室，在柱塞和活塞之间限定第二油压室。 当发动机转速降低时，施加到第一室的油压降低时，柱塞向第一室移动，允许第二室通过孔与储油室连通。 在中等油压范围内的气门升程量取决于通过旋转凸轮与气缸一起移动的柱塞关闭该孔的程度。

公开(公告)号：US3902467A

公开(公告)日：1975-09-02

申请号：US30027072

申请日：1972-10-24

Applicant: JOHNSON PRODUCTS INC

Inventor： CORNELL RICHARD D

IPC: F01L1/245 ,  F01M9/10

CPC classification number: F01L1/245

Abstract: Metered oil is supplied to the rocker arm through the tappet body which includes a closure member movable in the tappet and engageable with the rocker arm directly or a push rod extending therefrom. The closure member is formed of upper and lower parts with at least one of the parts having grooves or slots formed therein which in cooperation with the other part form oil conducting passageways. In one embodiment, the diameter and thickness of the lower part in cooperation with the inner bore of the tappet in which it is located determines the degree of metering. In another embodiment, the size and configuration of slots or grooves in one or both of the parts determines the degree of metering.

Abstract translation: 计量油通过挺杆主体供应到摇臂，该挺杆主体包括可在挺杆中移动并可直接与摇臂接合的关闭构件或从其延伸的推杆。 封闭构件由上部和下部形成，其中至少一个部分具有形成在其中的凹槽或槽，其与另一部分协作形成导油通道。 在一个实施例中，与位于其中的挺杆的内孔配合的下部的直径和厚度决定了计量的程度。 在另一个实施例中，一个或两个部分中的狭槽或凹槽的尺寸和构型决定了计量的程度。