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公开(公告)号：US4457270A
公开(公告)日：1984-07-03
申请号：US483705
申请日：1983-04-11
Applicant: Hisashi Kodama , Katsujiro Sato , Tetsuomi Tamura , Tooru Hamamoto , Kazuharu Yamada
Inventor： Hisashi Kodama , Katsujiro Sato , Tetsuomi Tamura , Tooru Hamamoto , Kazuharu Yamada
CPC classification number: F01L1/245 , F01L2109/00
Abstract: 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.
Abstract translation: 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。
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公开(公告)号：US4347812A
公开(公告)日：1982-09-07
申请号：US034186
申请日：1979-04-27
Applicant: Tooru Kosuda , Michihiro Ohashi , Yasuhiro Takeuchi , Tadahide Toda , Noboru Matsubara , Masaaki Takizawa
Inventor： Tooru Kosuda , Michihiro Ohashi , Yasuhiro Takeuchi , Tadahide Toda , Noboru Matsubara , Masaaki Takizawa
CPC classification number: F01L1/245
Abstract: A hydraulic valve lift device for transmitting the motion of a cam to a push rod of an intake or exhaust valve of an engine, including a housing, a lifter slidably engaged by the housing and provided therein with an oil pressure chamber adapted to receive an oil, and a plunger provided with a flange portion and slidable in relation to the lifter. The flange portion of the plunger and cylindrical bore of the housing cooperate with each other to define therebetween a braking chamber into which oil is introduced. The device has a slit through which the oil in the braking chamber is relieved to the outside. The arrangement is such that the rate of oil relieved through the braking chamber is reduced as the plunger is lowered. The device further includes a relief valve for maintaining the pressure in the braking chamber below a predetermined pressure level.
Abstract translation: 一种用于将凸轮的运动传递到发动机的进气门或排气门的推杆的液压气门提升装置，所述推动杆包括壳体，由所述壳体可滑动地接合并在其中设置有适于容纳油的油压室的升降器 以及设置有凸缘部分并且可相对于升降机滑动的柱塞。 柱塞的凸缘部分和壳体的圆柱孔相互配合，以在其间限定引入油的制动室。 该装置具有狭缝，制动室中的油通过狭缝释放到外部。 这样一来，随着柱塞的降低，通过制动室释放的油的速度降低。 该装置还包括用于将制动室中的压力保持在预定压力水平以下的安全阀。
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公开(公告)号：US4248045A
公开(公告)日：1981-02-03
申请号：US26965
申请日：1979-04-04
Applicant: David L. Turner
Inventor： David L. Turner
CPC classification number: F01L9/02 , F01L1/245 , F01L13/0005
Abstract: Drive is transmitted from a cam to a push rod via a body of liquid trapped between two pistons. A control element is normally urged against a seat by pressure in the body of liquid but can be lifted off its seat by the application of pressure to liquid in a control chamber. When the control element moves clear of its seat, liquid trapped between the pistons acts on a seat-engaging face of the control element and displaces the control element instead of driving the push rod.
Abstract translation: 驱动器通过被捕获在两个活塞之间的液体体从凸轮传递到推杆。 控制元件通常通过液体中的压力被推靠在座椅上，但是可以通过对控制室中的液体施加压力而将其提升离开其座椅。 当控制元件从其座位移开时，捕获在活塞之间的液体作用在控制元件的座接合面上，并使控制元件移位而不是驱动推杆。
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公开(公告)号：US4164917A
公开(公告)日：1979-08-21
申请号：US825178
申请日：1977-08-16
Applicant: Richard E. Glasson
Inventor： Richard E. Glasson
Abstract: A hydraulic tappet or lash adjuster of simplified design is disclosed for use in the valve train of an internal combustion engine equipped with dual ramp cams. In one embodiment, the disclosed tappet is designed to respond to the presence or absence of control pressure supplied through a single supply port to cause variation in the timed relationship of valve opening and piston movement whereby the internal combustion engine may be operated in a power mode or a braking mode. In another embodiment, a pressure relief outlet is provided in the tappet for cooperation with a pressure relief port to insure collapse of the tappet thereby to prevent the valve from being opened beyond a pre-determined fully open position.
Abstract translation: 公开了一种简化设计的液压挺杆或间隙调节器，用于装配有双斜坡凸轮的内燃机的气门机构。 在一个实施例中，所公开的挺杆被设计为响应通过单个供应端口提供的控制压力的存在或不存在，以引起阀开启和活塞运动的定时关系的变化，由此内燃机可以以功率模式 或制动模式。 在另一个实施例中，在挺杆中设置有一个泄压出口，用于与减压端口配合，以确保挺杆的塌缩，从而防止阀门超出预定的完全打开位置。
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公开(公告)号：US4133332A
公开(公告)日：1979-01-09
申请号：US841682
申请日：1977-10-13
Applicant: Carl F. Benson , Harold W. Humphrey, Jr.
Inventor： Carl F. Benson , Harold W. Humphrey, Jr.
CPC classification number: F01L13/0031 , F01L1/245 , F01L13/0005 , F01L9/023
Abstract: A tappet or valve lifter is used in an internal combustion engine. The operation of the tappet is hydraulically controlled to selectively stop or start the operation of the engine combustion chamber poppet valve. Tappets may be included in both the intake system and the exhaust system of each cylinder.
Abstract translation: 在内燃机中使用挺杆或气门挺杆。 挺杆的操作是液压控制的，以选择性地停止或开始发动机燃烧室提升阀的操作。 每个气缸的进气系统和排气系统都可以包括挺杆。
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Patent Agency Ranking
公开(公告)号：US3877445A
公开(公告)日：1975-04-15
申请号：US41694073
申请日：1973-11-19
Applicant: STANADYNE INC
Inventor： BARNES WILLIAM I
CPC classification number: F01L1/245 , F01M9/104 , Y10T137/7436
Abstract: A hydraulic tappet has a body and a reciprocal plunger within the body. The plunger has an internal oil chamber in communication with the exterior of the tappet body. A floating metering element is positioned within the plunger chamber and has a surface which cooperates with a mating surface on the plunger cap to meter oil from the chamber to the outer surface of the plunger cap.
Abstract translation: 液压挺杆在主体内具有主体和往复的柱塞。 柱塞具有与挺杆体的外部连通的内部油室。 浮动计量元件定位在柱塞室内并且具有与柱塞盖上的配合表面配合的表面，以将油从腔室计量到柱塞盖的外表面。
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公开(公告)号：US3875911A
公开(公告)日：1975-04-08
申请号：US38606773
申请日：1973-08-06
Applicant: JOSEPH CHARLES
Inventor： JOSEPH CHARLES
Abstract: A hydraulic tappet is so constructed that the socket for the hollow pushrod is of two diameters, the lower portion being of smaller diameter and thereby providing a clearance space of increased radial width and bounding an intermediate reservoir space with the body wall between the larger oil entry reservoir and the radially narrower clearance space about the upper part of the socket of larger diameter. The clearance space about the upper part of the socket immediately above the lower part of reduced diameter leads to a collecting groove, the axial height of such clearance varying throughout the cycle. The central bore of the socket leading from the pushrod seat extends a considerable distance below the transverse bore leading from the collecting groove to provide an oil reservoir which supplies the hollow pushrod immediately upon start of the engine. The central bore stops short of the bottom of the socket, and the tappet is devoid of a disc valve at said socket bottom.
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公开(公告)号：US3786792A
公开(公告)日：1974-01-22
申请号：US3786792D
申请日：1971-05-28
Applicant: MACK TRUCKS
Inventor： PELIZZONI W , GIBSON R , GREATHOUSE J , PEKAR F
CPC classification number: F01L1/2422 , F01L1/08 , F01L1/245 , F01L13/0031 , F01L13/04 , F01L13/06 , F01L13/08
Abstract: A system for varying the valve timing of an internal combustion engine to increase the retarding effect of the engine for braking purposes, to increase the compression ratio of a relatively low compression ratio engine to enhance starting, and to optimize breathing to improve the engine performance over the useful operating speed range. The valve timing is varied by changing the total valve train length so as to shift the points on the cam profile at which the valve opening and closing events are determined.
Abstract translation: 一种用于改变内燃机的气门正时以增加用于制动目的的发动机的减速效果的系统，以增加相对较低的压缩比发动机的压缩比以增强启动，并优化呼吸以改善发动机性能 有用的运行速度范围。 通过改变总气门机构长度来改变气门正时，以便确定确定开阀和关闭事件的凸轮轮廓上的点。
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公开(公告)号：US3683876A
公开(公告)日：1972-08-15
申请号：US3683876D
申请日：1970-06-08
Applicant: STANADYNE INC
Inventor： LESHER KENNETH W
CPC classification number: F01M9/104 , F01L1/245 , Y10T29/49304
Abstract: A hydraulic tappet in which the barrel is formed of powdered metal, sintered and compacted to a density permitting fluid from within the barrel to pass to the barrel exterior to provide lubrication therefor. The cam face of the tappet barrel may be a sintered component infiltrated with a hardening agent, or it may be formed by a cast iron disc suitably attached to the barrel. The cam face may also be a separate sintered metal disc, again suitably attached to the tappet barrel.
Abstract translation: 液压挺杆，其中筒由粉末金属形成，被烧结并压实成允许来自筒体内的流体的密度传递到筒体外部以提供润滑。 挺杆筒的凸轮面可以是用硬化剂渗透的烧结部件，或者可以由合适地附接到筒体上的铸铁盘形成。 凸轮面也可以是单独的烧结金属盘，再次适当地附接到挺杆筒上。
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公开(公告)号：US3470983A
公开(公告)日：1969-10-07
申请号：US3470983D
申请日：1968-07-03
Applicant: STEPHEN F BRIGGS
Inventor： BRIGGS STEPHEN F
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