公开(公告)号：US5749341A

公开(公告)日：1998-05-12

申请号：US839176

申请日：1997-04-23

Applicant: Noriomi Hosaka ,  Tadashi Kikyohara ,  Seiji Tsuruta ,  Sadayuki Abo ,  Masaki Toriumi ,  Kenji Ariga

Inventor： Noriomi Hosaka ,  Tadashi Kikyohara ,  Seiji Tsuruta ,  Sadayuki Abo ,  Masaki Toriumi ,  Kenji Ariga

IPC: F01M1/06 ,  F01L1/14 ,  F01L1/20 ,  F01M9/10 ,  F01L1/16

CPC classification number: F01L1/205 ,  F01L1/143 ,  F01M9/104

Abstract: A mechanical valve lifter for an internal combustion engine comprises a head section having a recessed portion on an upper face thereof, a skirt section formed integral with the head section and adapted to be in sliding-contact with a lifter guiding bore in an engine cylinder head, a mechanical valve-clearance adjusting shim put in the recessed portion, an annular groove formed in an upper face of a bottom wall of the recessed portion of the lifter body, a first through-opening formed in the shim to communicate with the annular groove, and a second through-opening formed in the head section to communicate with the annular groove and to penetrate the head section. The annular groove and the second through-opening are formed in an essentially zero bending moment area midway between a central axis of the head section and a peripheral wall of the recessed portion.

Abstract translation: 一种用于内燃机的机械式气门挺杆，包括：头部，其在其上表面上具有凹部;裙部，其与头部形成一体，并且适于与发动机气缸盖中的升降器引导孔滑动接触 设置在所述凹部中的机械阀间隙调节垫片，形成在所述升降机体的凹部的底壁的上表面中的环状槽，形成在所述垫片中的与所述环状槽连通的第一贯通开口 以及形成在头部中的与环形槽连通并穿透头部的第二通孔。 环形槽和第二通孔形成在头部的中心轴线与凹部的周壁之间的中间的基本零弯曲力矩区域中。

公开(公告)号：US5662076A

公开(公告)日：1997-09-02

申请号：US634729

申请日：1996-04-19

Applicant: Kizuku Ohtsubo ,  Satoshi Fukuoka ,  Tatsuo Kanzaki

Inventor： Kizuku Ohtsubo ,  Satoshi Fukuoka ,  Tatsuo Kanzaki

IPC: F01L1/14 ,  F01L1/16

CPC classification number: F01L1/143 ,  F01L1/16

Abstract: A tappet is used in an internal combustion engine. A cam receiving plate which contacts a cam is brazed on the upper surface of a top wall of a tappet body. The whole surface of the cam receiving plate can act as a cam follower surface, thereby making the outer diameter of the cam receiving plate to the minimum size corresponding to projected length of a nose of a rotary cam and lightening the tappet.

Abstract translation: 挺杆用于内燃机。 接触凸轮的凸轮接收板钎焊在挺杆本体的顶壁的上表面上。 凸轮接收板的整个表面可以用作凸轮随动体表面，从而使凸轮接收板的外径达到对应于旋转凸轮的鼻部的突出长度并减轻挺杆的最小尺寸。

公开(公告)号：US5623898A

公开(公告)日：1997-04-29

申请号：US586971

申请日：1996-01-16

Applicant: Murl L. Bruton

Inventor： Murl L. Bruton

IPC: F01L1/245 ,  F01L13/00 ,  F01L1/16 ,  F01L1/24

CPC classification number: F01L1/245 ,  F01L13/0031 ,  F01L1/146 ,  F01L2105/00

Abstract: Variable duration hydraulic lifters having either the conventional flat bottom surface or a roller mounted in their bottom end for engagement with a cam. The unique plungers have an upper portion and a lower portion whose outer cylindrical surfaces have grooves extending from their top edges to their bottom. The width of these grooves at their top end is less than their width at their bottom edges. Also these grooves may have a depth at their top edges that increases as it approaches their bottom edges. The benefits resulting from the unique grooves in the outer surface of the plunger includes reduced emissions, increased gas mileage, and an increase in the engines horsepower and torque.

Abstract translation: 可变持续时间的液压升降机具有传统的平底表面或安装在其底端中的辊，用于与凸轮接合。 独特的柱塞具有上部和下部，其外部圆柱形表面具有从其顶部边缘延伸到其底部的凹槽。 这些槽在其顶端的宽度小于其底部边缘处的宽度。 此外，这些凹​​槽在它们的顶部边缘处可以具有随其接近底部边缘而增加的深度。 由柱塞外表面独特的凹槽带来的好处包括减少排放，提高燃油里程，增加发动机马力和转矩。

公开(公告)号：US5605122A

公开(公告)日：1997-02-25

申请号：US643747

申请日：1996-05-06

Applicant: Nobuo Hara ,  Tatsuo Kanzaki

Inventor： Nobuo Hara ,  Tatsuo Kanzaki

IPC: F01L1/14 ,  F01L1/16

CPC classification number: F01L1/143 ,  F01L2103/00 ,  Y10T29/49304 ,  Y10T74/2107

Abstract: A tappet is used in an internal combustion engine of vehicles. A core material of the tappet has a helical groove on the outer circumferential surface, and a wear resistant coating layer the ends of which are chamfered. In the vicinity of the end of the core material, the helical groove gradually becomes smaller toward the end, thereby preventing peaks of the helical groove from exposure to the outside.

Abstract translation: 挺杆用于车辆的内燃机。 挺杆的芯材在外圆周表面上具有螺旋槽，并且其端部被倒角的耐磨涂层。 在芯材的端部附近，螺旋槽朝向端部逐渐变小，从而防止螺旋槽的顶部暴露于外部。

公开(公告)号：US5570665A

公开(公告)日：1996-11-05

申请号：US416245

申请日：1995-04-04

Applicant: Jose F. Regueiro

Inventor： Jose F. Regueiro

IPC: F01L1/14 ,  F01L1/18 ,  F01L1/20 ,  F01L1/24 ,  F01L1/25 ,  F01L1/26 ,  F01L1/16

CPC classification number: F01L1/143 ,  F01L1/185 ,  F01L1/20 ,  F01L1/2405 ,  F01L1/25 ,  F01L1/262 ,  F01L1/265 ,  F01L2003/251 ,  F01L2003/256 ,  F01L2105/00 ,  F02B2275/18

Abstract: A valve train for internal combustion engines utilizing an inverted bucket tappet with a pivot structure operatively disposed between the tappet and the end of the valve stem allowing the valves to be angulated with respect to each other and to the axis of the cylinder in both the transversal and the horizontal planes of the engine. Accordingly on a multi-valve engine, the valves extend radially from the associated combustion chamber to open and increase space in the center of the cylinder head for spark plugs, injectors, or pre-combustion chambers and so that the combustion chamber can be designed with a hemispherical surface, with tangentially disposed valve heads. The construction allows the use of large valves in conjunction with stronger, better-cooled valve seats and bridges. The tappets can be actuated conventionally by direct-acting overhead camshafts, by rocker arms and "T" bridges.

Abstract translation: 一种用于内燃机的气门机构，其利用具有可操作地设置在挺杆和阀杆的端部之间的枢转结构的倒置的斗杆挺杆，其允许阀在横向上相对于彼此和气缸的轴线成角度 和发动机的水平面。 因此，在多气门发动机上，阀从相关联的燃烧室径向延伸以打开并增加用于火花塞，喷射器或预燃烧室的气缸盖中心的空间，并且使得燃烧室可以设计成 一个半球形表面，具有切向设置的阀头。 该结构允许使用大型阀门与更强，更好冷却的阀座和桥梁一起使用。 挺杆可以通过直接作用的顶置凸轮轴，通过摇臂和“T”桥进行传动。

公开(公告)号：US5438754A

公开(公告)日：1995-08-08

申请号：US92559

申请日：1993-07-16

Applicant: Kazuaki Mori

Inventor： Kazuaki Mori

IPC: B21K25/00 ,  F01L1/14 ,  F01L1/16 ,  F02B75/02 ,  B23P15/00

CPC classification number: F01L1/143 ,  F02B2075/027 ,  F02B2275/18 ,  Y10T29/49304 ,  Y10T29/49314 ,  Y10T29/4994 ,  Y10T74/2107

Abstract: Tappet assemblies of a main body element are formed from a lightweight material and an engaging element adapted to engage the valve stem and formed from a harder, more wear resistant element. The engaging element and the main body element have cooperating cylindrical surfaces with a discontinuity in one of these surfaces into which the material of the other element is plastically deformed on assembly for locking the elements to each other.

Abstract translation: 主体元件的挺杆组件由轻质材料和适于接合阀杆的接合元件形成，并且由较硬的，更耐磨的元件形成。 接合元件和主体元件具有配合的圆柱形表面，在这些表面之一中具有不连续性，其中另一元件的材料在组件上塑性变形，以将元件彼此锁定。

公开(公告)号：US5410995A

公开(公告)日：1995-05-02

申请号：US228342

申请日：1994-04-15

Applicant: Joseph C. Bentz ,  John T. Carroll, III ,  Katsuhiro Shinosawa

Inventor： Joseph C. Bentz ,  John T. Carroll, III ,  Katsuhiro Shinosawa

IPC: F01L1/20 ,  F01L1/14 ,  F01L1/16 ,  F01L1/26 ,  F02B3/06 ,  F02F1/24 ,  F02F1/42

CPC classification number: F01L1/143 ,  F01L1/16 ,  F01L1/26 ,  F01L2001/187 ,  F02B3/06 ,  F02F1/4214 ,  F02F2001/247 ,  Y10T74/20882

Abstract: In accordance with preferred embodiments of the invention, a disc-shaped contact pad of ceramic material is disposed within a recess formed in the top surface of a metal valve crosshead. The pad is held in the recess by a retainer that clips onto the crosshead. The retainer is designed to maintain only a light pressure on only a narrow shoulder of the pad to keep it seated, and does not, itself, experience any dynamic loading. Furthermore, by the provision of a circumferential clearance between the pad and both the wall of the crosshead recess and the retainer, the need for precision machining of the ceramic material can be avoided. Additionally, a reduction of frictional sliding forces imposed on the crosshead, and in turn upon the valves, by the rocker lever is achieved by the ceramic pad, so that resultant frictional side loading is not imposed on adjacent valve components to a significant extent.

Abstract translation: 根据本发明的优选实施例，陶瓷材料的盘形接触垫设置在形成在金属阀十字头的顶表面中的凹槽内。 垫通过夹在十字头上的保持器保持在凹槽中。 保持器被设计成仅在垫的狭窄肩部上保持轻微的压力，以保持其就位，并且本身不经历任何动态负载。 此外，通过在垫与十字头凹槽和保持器的两个壁之间设置圆周间隙，可以避免对陶瓷材料进行精密加工的需要。 此外，通过陶瓷垫来实现施加在十字头上的摩擦滑动力，并且通过摇杆杠杆减小，从而在相当的阀部件上不会产生相当大的摩擦副载荷。

公开(公告)号：US5372099A

公开(公告)日：1994-12-13

申请号：US174471

申请日：1993-12-28

Applicant: Kenji Matsunuma ,  Takao Nishioka ,  Akira Yamakawa

Inventor： Kenji Matsunuma ,  Takao Nishioka ,  Akira Yamakawa

IPC: F01L1/14 ,  F01L1/16 ,  F01L1/20

CPC classification number: F01L1/143 ,  F01L1/16 ,  F01L1/205 ,  Y10T74/2107

Abstract: The preset invention provides a ceramic adjusting shim capable of minimizing the abrasion of parts contacting the adjusting shim, for example, a cam and a tappet. The ceramic adjusting shim is produced from a ceramic material and has a surface roughness of 0.05 to 0.2 .mu.m in ten-point average roughness Rz.

Abstract translation: 本发明提供一种陶瓷调节垫片，其能够最小化与调节垫片接触的部件的磨损，例如凸轮和挺杆。 陶瓷调节垫片由陶瓷材料制成，并且在十点平均粗糙度Rz中具有0.05至0.2μm的表面粗糙度。

公开(公告)号：US5358797A

公开(公告)日：1994-10-25

申请号：US911914

申请日：1992-07-10

Applicant: Kenji Matsunuma ,  Takao Nishioka ,  Takehisa Yamamoto ,  Akira Yamakawa

Inventor： Kenji Matsunuma ,  Takao Nishioka ,  Takehisa Yamamoto ,  Akira Yamakawa

IPC: C04B35/584 ,  C04B35/593 ,  C04B35/597 ,  C04B35/599 ,  C04B38/00 ,  F01L1/14 ,  F01L1/16 ,  F01L1/20

CPC classification number: C04B35/593 ,  C04B35/597 ,  F01L1/143 ,  F01L1/16 ,  F01L1/205 ,  Y10T428/265

Abstract: The present invention provides an improved adjusting shim used in a valve train for an internal combustion engine for an automobile. The adjusting shim produced from a base material consisting of a ceramic material containing 80 to 98 wt. % of silicon nitride and/or sialon and has a porosity of not more than 3%, a bending strength of not less than 1.0 GPa and an impact compressive elastic limit (Hugoniot elastic limit) of not less than 15 GPa, wherein the base material is provided on the surface thereof which contacts a cam with a ceramic surface layer having a composition different from that of the base material and a hardness lower than that of the base material. The adjusting shim of the present invention enables a power loss of a valve train to be minimized; the abrasion resistance thereof to be improved; and the fuel economy, the performance and durability of an internal combustion engine to be improved.

Abstract translation: 本发明提供一种用于汽车内燃机的气门机构中使用的改进的调节垫片。 由由含有80〜98重量％的陶瓷材料构成的基材制成的调整垫片 ％的氮化硅和/或赛隆，并且具有不大于3％的孔隙率，不小于1.0GPa的弯曲强度和不小于15GPa的冲击压缩弹性极限（Hugoniot弹性极限）），其中所述基材 在其表面上设置有与具有不同于基材的组成的陶瓷表面层的凸轮接触，并且硬度低于基材的硬度。 本发明的调节垫片能够使气门机构的功率损失最小化; 其耐磨性得到提高; 并且燃料经济性，内燃机的性能和耐久性得到改善。

公开(公告)号：US5347964A

公开(公告)日：1994-09-20

申请号：US116629

申请日：1993-09-07

Applicant: Jose F. Reguiero

Inventor： Jose F. Reguiero

IPC: F01L1/16 ,  F01L1/18 ,  F01L1/26 ,  F02B23/08 ,  F02B23/10 ,  F02F1/24 ,  F02F1/42 ,  F02F3/26 ,  F01L1/02

CPC classification number: F01L1/16 ,  F01L1/024 ,  F01L1/185 ,  F01L1/262 ,  F02B23/104 ,  F02F1/242 ,  F02F3/26 ,  F01L2003/255 ,  F02B2023/085 ,  F02B2023/102 ,  F02B2275/18 ,  F02F1/4214 ,  F02F2001/246 ,  Y02T10/125

Abstract: A valve mechanism for an internal combustion engine with a four-valve, double-overhead camshaft (DOHC) valve train in which the axes of valves for each cylinder diverge outwardly from and are non-parallel with respect to the axis of the cylinder, the valve mechanism having a finger follower for each camshaft lobe and valve and with a contact pad between the cam and the finger follower to permit rocking movement so that the orientation of the finger follower and the axis of the valve remains at a fixed relationship.

Abstract translation: 一种用于具有四阀双顶置凸轮轴（DOHC）阀列的内燃机的阀机构，其中每个气缸的阀轴相对于气缸的轴线向外发散并且不平行， 阀机构具有用于每个凸轮轴凸角和阀的手指随动件，并且在凸轮和手指随动件之间具有接触垫，以允许摆动运动，使得手指从动件的方向和阀的轴线保持固定的关系。