公开(公告)号：US4922867A

公开(公告)日：1990-05-08

申请号：US400706

申请日：1989-08-30

申请人： Will W. Mathews

发明人： Will W. Mathews

IPC分类号： F01L1/18 ,  F01L1/26 ,  F02B3/06 ,  F02F1/24 ,  F02F1/42

CPC分类号： F01L1/26 ,  F01L1/181 ,  F02B2275/18 ,  F02B3/06 ,  F02F1/4214 ,  F02F2001/247

摘要： A valve actuating mechanism for an internal combustion engine is provided including an integrally formed stop element to limit the axial travel of the valves toward the piston to a predetermined maximum extent in the event an adjacent associated valve becomes stuck and unmovable. The present invention further provides a valve actuating mechanism including a guideless valve bridge with specifically configured contact faces which prevents both the excess axial movement of the valve stem and the transfer of undesired loads to the valve stem or adjacent structures.

摘要翻译： 提供内燃机的阀致动机构，其包括一体形成的止动元件，以在相邻的相关阀被卡住和不可移动的情况下将阀朝向活塞的轴向行程限制到预定的最大程度。 本发明还提供了一种阀致动机构，其包括具有特定构造的接触面的无引导阀桥，其防止阀杆的过度的轴向运动和不期望的负载传递到阀杆或相邻结构。

公开(公告)号：US4911113A

公开(公告)日：1990-03-27

申请号：US290443

申请日：1988-12-27

申请人： Tetsuro Yamada

发明人： Tetsuro Yamada

IPC分类号： F01L1/26 ,  F02F1/24 ,  F02F1/42

CPC分类号： F01L1/265 ,  F02B2275/18 ,  F02F1/4214 ,  F02F2001/247

摘要： A valve actuating arrangement for a multiple valve engine wherein the valves are positioned so that they have their heads lying at different distances from the axis of rotation of the actuating camshaft. The valve stems are kept at the same length by employing cam lobes for actuating those that have different base circles.

公开(公告)号：US4848284A

公开(公告)日：1989-07-18

申请号：US137760

申请日：1987-12-24

申请人： Tsuneo Konno

发明人： Tsuneo Konno

IPC分类号： F01L13/00 ,  F01L1/26 ,  F02D17/02 ,  F02F1/24 ,  F02F1/42

CPC分类号： F01L1/26 ,  F01L1/267 ,  F02D17/02 ,  F02F1/4214 ,  F02F2001/247

摘要： A valve operating device for the intake or exhaust valves of a multicylinder internal combustion engine. Each cylinder has a valve operating mechanism associated therewith for opening and closing intake or exhaust valves associated with that cylinder in at least two different manners for different engine speeds. The cylinders are divided into two or more groups with each of said valve operating mechanisms being arranged to operate the intake or exhaust valves associated with the cylinders in one of the groups in a different operation mode from the intake or exhaust valves associated with the cylinders in another of the groups, at least under a certain operating condition of the engine, such as at low speed. The various embodiments disclosed different arrangements for the valve operating mechanisms for improving engine operation over various ranges of engine speed.

摘要翻译： 一种用于多缸内燃机的进气门或排气门的阀操作装置。 每个气缸具有与其相关联的阀操作机构，用于以不同的发动机速度以至少两种不同的方式打开和关闭与该气缸相关的进气门或排气门。 气缸被分成两组或更多组，其中每个所述阀操作机构被布置成在与气缸相关联的进气门或排气门的不同操作模式中操作与组中的一组中的气缸相关联的进气门或排气门 至少在发动机的一定运行状态下，例如低速的另一组。 各种实施例公开了用于在各种发动机速度范围内改善发动机运转的阀操作机构的不同布置。

公开(公告)号：US4844030A

公开(公告)日：1989-07-04

申请号：US178857

申请日：1988-04-07

申请人： Paul C. McAvoy

发明人： Paul C. McAvoy

IPC分类号： F02B1/04 ,  F02B3/06 ,  F02B75/12 ,  F02F1/24 ,  F02F1/42

CPC分类号： F02F1/4214 ,  F02B1/04 ,  F02B2075/125 ,  F02B2275/26 ,  F02B3/06 ,  F02F2001/008 ,  F02F2001/247 ,  F02F2001/248 ,  Y02T10/123

摘要： A cylinder head for a valve-controlled internal combustion engine having a bottom surface which faces into an associated combustion chamber and a plurality of spaced valve openings therethrough and also an injector bore for induction of fuel or ignition spark through the combustion face of said cylinder head into the cylinder, said bottom surface or combustion face of said cylinder head having a circular cut-out portion located radially spaced between said injector bore and the center lines of said valve openings, with said cut-out possibly intersecting each of said valve openings.

摘要翻译： 一种用于阀控式内燃机的气缸盖，其具有面向相关联的燃烧室的底面和通过其的多个间隔开的阀开口，还具有用于通过所述气缸盖的燃烧面感应燃料或点火火花的喷射孔 所述气缸盖的所述底表面或燃烧面具有位于所述喷射孔和所述阀开口的中心线之间径向间隔开的圆形切口部分，所述切口可能与每个所述阀开口相交。

公开(公告)号：US4844023A

公开(公告)日：1989-07-04

申请号：US142830

申请日：1988-01-11

申请人： Tsuneo Konno ,  Takashi Sugai

发明人： Tsuneo Konno ,  Takashi Sugai

IPC分类号： F01L1/26 ,  F01L13/00 ,  F02D17/02 ,  F02F1/24 ,  F02F1/42

CPC分类号： F02D17/02 ,  F01L1/26 ,  F01L1/267 ,  F01L13/0005 ,  F01L13/0036 ,  F02F1/4214 ,  F02F2001/247

摘要： A valve operating device for an internal combustion engine having a drive rocker arm operatively associated with an intake or exhaust valve and a free rocker arm releasable from the intake or exhaust valve. The drive rocker arm and the free rocker arm are disposed adjacent to each other and operable selectively in mutually different modes according to the rotation of the camshaft. In one embodiment either the drive or free rocker arm has two arms connected together with one arm on each side of the other rocker arm for balanced loading. A selective coupling mechanism is disposed between the drive rocker arm and the free rocker arm for selectively connecting and disconnecting them with a coupling pin movable in a direction substantially normal to the axis of the rocker shaft.

摘要翻译： 一种用于内燃机的阀操作装置，其具有与进气门或排气门可操作地连接的驱动摇臂和可从进气门或排气阀释放的自由摇臂。 驱动摇臂和自由摇臂彼此相邻设置，并且根据凸轮轴的旋转选择性地以相互不同的模式操作。 在一个实施例中，驱动或自由摇臂具有两个臂，在另一个摇臂的每一侧上用一个臂连接在一起，用于平衡负载。 选择性联接机构设置在驱动摇臂和自由摇臂之间，用于选择性地将连接销与可在基本上垂直于摇臂轴的方向的方向上移动的连接销连接和断开。

公开(公告)号：US4838235A

公开(公告)日：1989-06-13

申请号：US175506

申请日：1988-03-30

申请人： Hideo Kawamura ,  Hiroshi Matsuoka

发明人： Hideo Kawamura ,  Hiroshi Matsuoka

IPC分类号： F02F1/24 ,  F02B77/11 ,  F02F1/38

CPC分类号： F02B77/11 ,  F02F1/38 ,  F02F2001/247 ,  Y10T29/49272

摘要： The heat-insulating engine structure according to the invention comprises fitting a ceramic head liner for which a cylinder liner top and a head lower surface portion are unified structurally in a cylinder head, coating an outer surface of the cylinder liner top of the head liner with a heat insulating laminate with a metallic sheet and a heat insulating material with potassium titanate as a principal component wound spirally by turns with a compressive force exerted thereon, thus enhancing strength or pressure resistance, forming a wall of the head liner as thin as possible to minimize a thermal capacity of the head liner, thereby enhancing suction efficiency and cycle efficiency. Further, heat insulation efficiency is enhanced all the more by disposing the heat insulating laminate having air layers between the head liner and the cylinder head. The manufacturing method for the heat insulating engine structure comprises heating the metallic sheet for thermal expansion, placing the heat insulating material on the metallic sheet, winding up spirally the metallic sheet on which the heat insulating material is placed to an outer peripheral surface of the cylinder liner top of the ceramic head liner, exerting a compressive force on the cylinder liner top by contraction of the metallic sheet thereafter, thereby ensuring the structure that withstands high pressures despite the thin-walled head liner.

公开(公告)号：US4805567A

公开(公告)日：1989-02-21

申请号：US71789

申请日：1987-07-10

申请人： Fritz Heimburg

发明人： Fritz Heimburg

IPC分类号： F01L1/25 ,  F01L1/26 ,  F01L1/32 ,  F02F1/24 ,  F02F1/42

CPC分类号： F01L1/25 ,  F01L1/26 ,  F01L1/32 ,  F02F1/4214 ,  F02F2001/247

摘要： A pair of adjacent valves (intake or exhaust) are operated by a single cam lobe on an engine camshaft via a bucket tappet, the arrangement being such that both the bucket tappet and the valves are rotatable during engine operation to reduce wear thereof. Preferably, a hydraulic lash adjuster is operatively associated with the bucket tappet and with a thrust member engaging the free stem ends of the valves.

摘要翻译： 一对相邻的阀（进气或排气）通过铲斗挺杆由发动机凸轮轴上的单个凸轮凸角操作，该装置使得在发动机运行期间铲斗挺杆和阀都可旋转以减少其磨损。 优选地，液压间隙调节器可操作地与铲斗挺杆相关联并且与止动构件接合阀的自由杆端。

公开(公告)号：US4787346A

公开(公告)日：1988-11-29

申请号：US107345

申请日：1987-10-13

申请人： Yoshio Ajiki ,  Atsushi Ishida

发明人： Yoshio Ajiki ,  Atsushi Ishida

IPC分类号： F01L13/00 ,  F01L1/18 ,  F01L1/26 ,  F01L1/46 ,  F02F1/24 ,  F02F1/42 ,  F01L1/34

CPC分类号： F01L1/26 ,  F01L1/185 ,  F01L1/267 ,  F01L1/462 ,  F02F1/4214 ,  F02F2001/247

摘要： Apparatus for maintaining the cam follower for operating a valve for an internal combustion engine in biased engagement against the cam includes a first spring operative to bias the cam follower under a low speed engine operating condition and a second spring series-connected to the first spring and having a spring constant greater than that of the first spring operative to bias the cam follower under a high speed engine operating condition.

公开(公告)号：US4785773A

公开(公告)日：1988-11-22

申请号：US883363

申请日：1986-07-07

申请人： Klaus-Hagen Schreiber ,  Dieter Pundt

发明人： Klaus-Hagen Schreiber ,  Dieter Pundt

IPC分类号： F01L1/053 ,  F02B77/13 ,  F02F1/24 ,  F02F1/38 ,  F02F7/00 ,  F02F1/42

CPC分类号： F01L1/053 ,  F02B77/13 ,  F02F1/38 ,  F02B2275/20 ,  F02F2001/247 ,  F02F7/006

摘要： A cylinder head for a water-cooled internal combustion engine has a lower and an upper cylinder head portion fitting over one another along a parting plane traversing cooling chambers complementally formed in the lower and upper cylinder head portions. The lower cylinder head portion has intake and exhaust ports and is tightened to a cylinder block. The upper cylinder head portion carries a valve operating assembly of the engine. A cylinder head cover is situated above the upper cylinder head portion and covers the valve operating assembly. The lower cylinder head portion has a circumferential lower wall bounding a liquid-guiding chamber provided in the lower cylinder head portion and serving for returning oil from the upper cylinder head portion. The lower cylinder head portion also has a circumferential upper wall constituting an upward continuation of the lower wall and extending from the intake and exhaust ports. The circumferential upper wall has a circumferential seating face supporting the cylinder head cover. The upper cylinder head portion is not in a direct contact with the cylinder head cover.

摘要翻译： 用于水冷式内燃机的气缸盖具有下部和上部气缸盖部分，该下部气缸盖部分和上部气缸盖部分沿着穿过在下部气缸盖头部和上部气缸盖部分中互补形成的冷却室的分型平面彼此配合。 下气缸盖部分具有进气和排气口，并被紧固到气缸体。 上气缸盖部分承载发动机的气门操作组件。 气缸盖罩位于上气缸盖部分上方并覆盖气门操作组件。 下气缸盖部分具有围绕设置在下气缸头部分中的液体引导室的周向下壁，用于从上气缸头部分返回油。 下气缸盖部分还具有构成下壁的向上延伸并从进气口和排气口延伸的周向上壁。 周向上壁具有支撑气缸盖罩的周向安装面。 上气缸盖部分不与气缸盖罩直接接触。

公开(公告)号：US4781157A

公开(公告)日：1988-11-01

申请号：US137781

申请日：1987-12-24

申请人： Wallace R. Wade ,  Edwin J. Ounsted

发明人： Wallace R. Wade ,  Edwin J. Ounsted

IPC分类号： F02B3/06 ,  F02F1/24 ,  F02F1/38 ,  F02F7/00 ,  F02B75/08

CPC分类号： F02F7/0087 ,  F02F1/38 ,  F02B2275/14 ,  F02B3/06 ,  F02F2001/247

摘要： A multipart ceramic cylinder head construction, comprises: a ceramic plate having (i) opposed faces, (ii) a central zone through which extends a transverse central axis, (iii) a peripheral zone about the central zone, the plate further having three or more gas or fluid transfer openings extending transversely through the central zone and spaced about the central axis to divide the central zone into radial sectors, each sector containing one of the openings; a first ceramic intake port block having sufficient ceramic mass to define a gas passage and define an integral compression receiving portion, the first block being adapted to mate with one of the radial sectors of the plate to align the first passage with the opening in such one radial sector; a second ceramic exhaust port block having sufficient ceramic mass to define a second gas passage and define an integral compression receiving portion, the second block being adapted to mate with another of the radial sectors of the plate to align such second passage with the opening in such other radial sector; and means effective to (i) secure the blocks mated to the plate in compression, and (ii) provide an air gap spacing between the blocks.

摘要翻译： 一种多部分陶瓷气缸盖结构，包括：陶瓷板，其具有（i）相对的面，（ii）中心区，通过该中心区延伸横向中心轴线，（iii）围绕中心区域的周边区域，所述板还具有三个或 更多的气体或流体传输开口横向延伸穿过中心区域并且围绕中心轴线间隔开，以将中心区域分成径向扇区，每个扇区包含其中一个开口; 具有足够的陶瓷块以限定气体通道并限定一体的压缩接收部分的第一陶瓷进气口块，所述第一块适于与所述板的一个径向扇形部配合，以将所述第一通道与所述开口对准 径向扇区 第二陶瓷排气口块，其具有足够的陶瓷块以限定第二气体通道并限定一体的压缩接收部分，所述第二块适于与所述板的另一个径向扇形部配合，以将所述第二通道与所述开口对准 其他径向部分; 并且有效地（i）在压缩过程中固定与板相配合的块，以及（ii）在块之间提供气隙间隔。