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公开(公告)号：US20150308300A1
公开(公告)日：2015-10-29
申请号：US14673107
申请日：2015-03-30
Applicant: SCHAEFFLER TECHNOLOGIES AG & CO. KG
Inventor： Gail BRAUN
CPC classification number: F01L1/18 , F01L1/255 , F01L2001/187
Abstract: A rocker arm assembly including a rocker arm with an end portion including a socket portion on a top surface and a groove formed on the socket portion is provided. A clip having a generally C-shaped cross-section is provided. The clip includes a first leg with an opening that defines an inner edge that at least partially engages the groove on the socket portion of the rocker arm. The clip includes an intermediate leg including an opening through which a protrusion on the axial end of the rocker arm extends. The clip includes a second leg including first and second leg portions that engage the bottom surface of the rocker arm.
Abstract translation: 提供了一种摇臂组件，其包括具有在顶表面上包括插座部分的端部的摇臂和形成在插座部分上的凹槽。 提供具有大致C形横截面的夹子。 夹具包括具有开口的第一腿部，该开口限定了至少部分地接合摇臂的插座部分上的凹槽的内边缘。 夹具包括中间腿，该中间腿包括开口，摇臂的轴向端部上的突起延伸穿过该开口。 夹具包括第二腿部，该第二腿部包括接合摇臂的底面的第一和第二腿部。
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公开(公告)号：US20050166880A1
公开(公告)日：2005-08-04
申请号：US11088776
申请日：2005-03-25
Applicant: Nobert Geyer , Peter Sailer , Oliver Schnell
Inventor： Nobert Geyer , Peter Sailer , Oliver Schnell
CPC classification number: F01L1/14 , F01L1/146 , F01L1/245 , F01L1/255 , F01L13/0005 , F01L13/0031 , F01L2103/00 , F01L2105/00
Abstract: A switch element (1) is proposed for valve shut-off, fabricated as cam follower for a plunger rod valve drive of an internal combustion engine, having an outer part (2) and an inner element (4) axially movable in its bore (3) and with rotational security (15) relative to the guided inner element (4). The outer part (2), inside the bore (3), has an annular groove (6), and the inner element (4) has a radial bore (7) with two diametrically opposed pistons (8), which to couple the elements (2, 4) in their axially remote relative position achieved by a lost-motion spring (5) are displaceable towards the annular groove (6). On their cam-side under side, emanating from their radially outward, bulbous face, the pistons (8) segmentwise comprise a plane transverse surface as contact area for a facing under side (27) of the annular groove (6). The latter is intersected by two diametrically opposed oil ports (11) running offset 90° from the pistons (8) in circumferential direction. In addition, the outer part (2) has means (13) for rotationally secured guidance of the switch element (1) relative to a surrounding structure.
Abstract translation: 提出了用于阀关闭的开关元件（1），其被制造为用于内燃机的柱塞杆阀驱动器的凸轮从动件，具有外部部件（2）和在其孔中可轴向移动的内部元件（4） 3）并且相对于被引导的内部元件（4）具有旋转安全性（15）。 在孔（3）内部的外部部分（2）具有环形槽（6），并且内部元件（4）具有径向孔（7），其具有两个直径相对的活塞（8） （2,4）在其由空转弹簧（5）实现的轴向远程相对位置中可朝着环形槽（6）移位。 在它们的凸轮侧下侧，从其径向向外的球形表面发射，活塞（8）分段地包括作为环形槽（6）的面向下侧（27）的接触区域的平面横向表面。 后者由在圆周方向上与活塞（8）偏移90°的两个直径相对的油口（11）相交。 此外，外部部分（2）具有用于相对于周围结构可旋转地固定开关元件（1）引导的装置（13）。
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公开(公告)号：US4867113A
公开(公告)日：1989-09-19
申请号：US290115
申请日：1988-12-27
Applicant: John M. Pieprzak , Pierre A. Willermet
Inventor： John M. Pieprzak , Pierre A. Willermet
Abstract: An engine tappet is constructed with flat, essentially parallel or conformal bearing surfaces internal of its case for the introduction during no-load operation of a lubricant under pressure to the space between the surfaces, the pressure level of the lubricant being greater than the force necessary to remove lash in the system, to thereby create an oil film between the surfaces that is partially squeezed out during load operations of the cam event to in effect float one part upon the other to reduce rotational friction.
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4.发明授权公开(公告)号：US11377980B2
公开(公告)日：2022-07-05
申请号：US17549915
申请日：2021-12-14
Applicant: JIANGSU JOINTEK PRECISION MACHINERY CO., LTD
Inventor： Lap Lam Chui
Abstract: A self-resetting single-valve double-piston hydraulic drive device and method for an overhead cam engine is disclosed. A primary driving piston and a secondary driving piston are respectively provided on a rocker arm body and a valve bridge body. The secondary driving piston is connected to an exhaust valve. When the drive control valve opens, the primary driving piston and the secondary driving piston realize a hydraulic linkage, during a drive lift, the secondary driving piston opens the exhaust valve. At the beginning of the positive-power lift, the secondary driving piston is automatically reset. When the control valve is closed, during the drive lift of an integrated cam, the primary driving piston absorbs the drive lift of an integrated cam assembly, the rocker arm body and the bridge body do not move, and the drive lift of the integrated cam is not transmitted to the exhaust valve.
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5.发明授权Hydraulic lash adjuster with combined reservoir extension and metering system 失效液压间隙调节器，具有组合的油箱延伸和计量系统
公开(公告)号：US4633827A
公开(公告)日：1987-01-06
申请号：US785301
申请日：1985-10-07
Applicant: Stephen M. Buente
Inventor： Stephen M. Buente
CPC classification number: F01L1/255
Abstract: A hydraulic lash adjuster for valve gear of an internal combustion engine, having a plunger member reservoir chamber with a fluid passageway into the chamber that is substantially lower than the actual vertical height of the chamber and with a reservoir extender means for extending the oil reservoir chamber to a height well above the height of the fluid passageway and a means to precisely meter the flow of oil from the plunger member chamber through a bleed orifice passing through the upper end of the adjuster plunger member with the metering means retained and supported by a reservoir extender means.
Abstract translation: 一种用于内燃机的阀门的液压间隙调节器，具有柱塞部件储存室，其具有进入该室的流体通道，该流体通道基本上低于该室的实际垂直高度，并具有用于延伸储油室 到远高于流体通道的高度的高度，以及用于精确地计量来自柱塞构件室的油流通过通过调节器柱塞构件的上端的排出孔的装置，其中计量装置保持并由储存器支撑 延长手段
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Patent Agency Ranking
公开(公告)号：US4291652A
公开(公告)日：1981-09-29
申请号：US78880
申请日：1979-09-26
Applicant: Peter R. Trzoska
Inventor： Peter R. Trzoska
CPC classification number: F01L1/255
Abstract: A hydraulic tappet includes a tubular cylinder sideable within a bore of a housing, a piston with a reservoir slideably mounted within the tubular cylinder, a lower piston spring biased away from the piston with the reservoir forming a pressure chamber therebetween. The reservoir being in open communication with pressure oil ports and the pressure chamber selectively being closed or open to said reservoir. The closing or opening of the pressure chamber being controlled by the lower piston and cylinder riding on tracks of a cam which control the relative position of the cylinder and lower piston.
Abstract translation: 液压挺杆包括可在壳体的孔内侧面的管状圆柱体，具有可滑动地安装在管状圆柱体内的储存器的活塞，偏置于活塞的下活塞弹簧，储液器在其间形成压力室。 储存器与压力油口开放连通，并且压力室选择性地关闭或打开到所述储存器。 压力室的关闭或打开由下活塞和气缸控制，其位于控制气缸和下活塞的相对位置的凸轮的轨道上。
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公开(公告)号：US20210310381A1
公开(公告)日：2021-10-07
申请号：US17197505
申请日：2021-03-10
Applicant: Schaeffler Technologies AG & Co. KG
Inventor： Faheem Ahmed , Peter Sailer
IPC: F01L1/255
Abstract: A hydraulic tappet configured for a valve train of an internal combustion engine is provided. The tappet includes an outer housing, a socket plunger, and a hydraulic lash adjuster assembly. The socket plunger and the hydraulic lash adjuster assembly are disposed within the outer housing. The hydraulic lash adjuster assembly includes an outer casing, a piston, and a check valve assembly. The outer casing is configured with a spherical first end. The hydraulic lash adjuster assembly can include a swivel pad that engages the spherical first end. The piston is at least partially received by an opening in the outer casing. The piston and socket plunger define a first fluid chamber, while the piston and outer casing define a second fluid chamber. The check valve assembly is arranged to fluidly connect the first fluid chamber to the second fluid chamber.
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公开(公告)号：US20180283241A1
公开(公告)日：2018-10-04
申请号：US16002416
申请日：2018-06-07
Applicant: Cummins Inc.
Inventor： Adam C. Cecil
Abstract: An engine compression braking system includes a brake tappet linking an exhaust cam to at least one exhaust valve of an engine cylinder. The brake tappet is connected with a working fluid that selectively activates and deactivates a compression braking mode of operation by selectively engaging and releasing a lash assembly of the brake tappet relative to a housing of the brake tappet.
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公开(公告)号：US09879571B2
公开(公告)日：2018-01-30
申请号：US15030150
申请日：2014-10-24
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Shuichi Ezaki , Hidetoshi Hirose
CPC classification number: F01L1/185 , F01L1/053 , F01L1/18 , F01L1/2405 , F01L1/255 , F01L1/267 , F01L1/34416 , F01L13/0005 , F01L13/0036 , F01L13/0057 , F01L2001/0473 , F01L2810/04
Abstract: A valve mechanism includes: a support shaft immovably fixed to a main body of an internal combustion engine, a main arm swingably supported by the support shaft; two sub-arms arranged at both sides of the main arm; a coupling support portion swingably supporting and coupling the two sub-arms to the main arm; a cam; and a roller rotatably located in the main arm. Each of the two sub-arms includes: a drive unit pressing and driving a valve; and a contact portion contacting a plunger of a lash adjuster, the contact portion has a curved surface slidably contacting a flat surface formed in a tip portion of the plunger and having an arc-like curved surface shape of which a central axis line corresponds to a central swing axis line of the main arm in a state where the cam abuts on the roller in a base circular portion of the cam.
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公开(公告)号：US09512744B2
公开(公告)日：2016-12-06
申请号：US14673107
申请日：2015-03-30
Applicant: Schaeffler Technologies AG & Co. KG
Inventor： Gail Braun
CPC classification number: F01L1/18 , F01L1/255 , F01L2001/187
Abstract: A rocker arm assembly including a rocker arm with an end portion including a socket portion on a top surface and a groove formed on the socket portion is provided. A clip having a generally C-shaped cross-section is provided. The clip includes a first leg with an opening that defines an inner edge that at least partially engages the groove on the socket portion of the rocker arm. The clip includes an intermediate leg including an opening through which a protrusion on the axial end of the rocker arm extends. The clip includes a second leg including first and second leg portions that engage the bottom surface of the rocker arm.
Abstract translation: 提供了一种摇臂组件，其包括具有在顶表面上包括插座部分的端部的摇臂和形成在插座部分上的凹槽。 提供具有大致C形横截面的夹子。 夹具包括具有开口的第一腿部，该开口限定了至少部分地接合摇臂的插座部分上的凹槽的内边缘。 夹具包括中间腿，该中间腿包括开口，摇臂的轴向端部上的突起延伸穿过该开口。 夹具包括第二腿部，该第二腿部包括接合摇臂的底面的第一和第二腿部。
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