公开(公告)号：US5279268A

公开(公告)日：1994-01-18

申请号：US69331

申请日：1993-06-01

Applicant: Randolph C. Brink ,  Donald J. Waldman

Inventor： Randolph C. Brink ,  Donald J. Waldman

IPC: F02B3/06 ,  F02B23/06 ,  F02F3/00 ,  F02F3/22 ,  F16J1/00 ,  F16J1/18 ,  F02B75/32 ,  F02F3/26

CPC classification number: F02B23/0696 ,  F02F3/0023 ,  F02F3/22 ,  F16J1/005 ,  F02B3/06 ,  F02F2200/04 ,  F05C2201/021 ,  F05C2201/0448 ,  Y02T10/125

Abstract: The design and construction of past piston assemblies having a wrist pin bolted to a connecting rod had excessive structural components requiring more complex machining procedures and tooling. Additionally, the loading and bolting patterns allowed the wrist pin to flex about the central axis of the piston assembly causing ultimate failure of the design. The present invention overcomes these problems by providing a piston assembly utilizing a bifurcated connecting rod and a piston having a pair of outer legs and a central leg. The outer legs and the central leg contact a wrist pin in three locations substantially distributing the forces across the wrist pin uniformly. A connecting means centrally connects the piston assembly shortening the overall length of the piston assembly. This results in a simplified forging or casting process, a more easily machinable piston, and a higher reliability design with improved load capacity.

Abstract translation: 过去的活塞组件的设计和结构具有螺栓连接到连杆的腕销，其结构部件过多需要更复杂的加工程序和加工。 此外，装载和螺栓模式允许腕销围绕活塞组件的中心轴弯曲，导致设计的最终故障。 本发明通过提供一种利用分叉连杆和具有一对外腿和中心腿的活塞的活塞组件克服了这些问题。 外腿和中心腿在三个位置接触腕销，均匀地将力分布在腕针上。 连接装置集中地连接活塞组件，缩短活塞组件的总长度。 这导致简化的锻造或铸造工艺，更容易加工的活塞，以及具有改进的负载能力的更高可靠性设计。

公开(公告)号：US5245752A

公开(公告)日：1993-09-21

申请号：US767047

申请日：1991-09-27

Applicant: Andre Lippai ,  Jorge K. Tanigami ,  Paulo T. Dellanoce

Inventor： Andre Lippai ,  Jorge K. Tanigami ,  Paulo T. Dellanoce

IPC: B23P15/10 ,  F02F3/00 ,  F02F3/18 ,  F16J1/00

CPC classification number: F16J1/001 ,  B23P15/10 ,  F02F3/003 ,  F02F3/0069 ,  F02F3/18 ,  F02F2003/0061 ,  F02F2200/04 ,  F05C2201/0448 ,  Y10T29/49252 ,  Y10T29/49256

Abstract: A two-piece, or articulated, piston head for internal combustion engines and the method for obtaining same. The top and pin boss portions composing the head are obtained separately from blanks; the underside of the top portion is provided with a groove whose inner wall is eccentric in relation to the top longitudinal axis; the two portions are joined together by welding; the upper side of the top portion is provided with a combustion bowl eccentric in relation to the top portion longitudinal axis and concentric with the inner wall of the groove on the underside of the top portion.

Abstract translation: 用于内燃机的两件式或铰接式活塞头及其获得方法。 构成头部的顶部和销形凸起部分与坯料分开获得; 顶部的下侧设有凹槽，该凹槽的内壁相对于顶部纵向轴线是偏心的; 两部分通过焊接连接在一起; 顶部的上侧设置有相对于顶部纵向轴线偏心的燃烧碗，并且与顶部的下侧上的槽的内壁同心。

公开(公告)号：US5211101A

公开(公告)日：1993-05-18

申请号：US718018

申请日：1991-06-20

Applicant: Thomas Letsch ,  Jorn Weipert ,  Eduart Steppat

Inventor： Thomas Letsch ,  Jorn Weipert ,  Eduart Steppat

IPC: F02F3/00

CPC classification number: F02F3/0069 ,  F05C2201/0448

Abstract: A piston for an internal combustion engine with a separate head and skirt which are joined by the piston pin. At least one of the upper lands has a reduced diametrical clearance with the cylinder wall in an area perpendicular to the pin direction. The bottom land has a reduced diametrical clearance with the cylinder wall in the pin direction. The lands are oval shaped, the bottom land optionally a truncated oval. At least one of the upper lands can have the shape of two ovals offset by 90.degree. like a cloverleaf.

Abstract translation: 一种用于内燃机的活塞，其具有由活塞销接合的单独头部和裙部。 至少一个上部平台在垂直于销方向的区域中与气缸壁具有减小的直径间隙。 底部平台与柱面壁在销方向上具有减小的直径间隙。 土地是椭圆形，底部任意地是截顶的椭圆形。 上部土地中的至少一个可以具有像三叶草一样偏移90°的两个椭圆形状。

公开(公告)号：US5161908A

公开(公告)日：1992-11-10

申请号：US175393

申请日：1988-03-30

Applicant: Akihiko Yoshida ,  Yoshizumi Nakasuji

Inventor： Akihiko Yoshida ,  Yoshizumi Nakasuji

IPC: B23P11/02 ,  B23K1/19 ,  C04B37/02 ,  F02F3/00 ,  F16B4/00

CPC classification number: C04B37/026 ,  F02F3/003 ,  C04B2237/12 ,  C04B2237/121 ,  C04B2237/122 ,  C04B2237/124 ,  C04B2237/125 ,  C04B2237/34 ,  C04B2237/341 ,  C04B2237/343 ,  C04B2237/348 ,  C04B2237/365 ,  C04B2237/368 ,  C04B2237/406 ,  C04B2237/64 ,  C04B2237/704 ,  C04B2237/72 ,  C04B2237/84 ,  F05C2201/021 ,  F05C2201/0448 ,  F05C2251/042 ,  Y10T403/213 ,  Y10T403/217 ,  Y10T403/477

Abstract: Joined structures are disclosed, which each comprise first and second members having different coefficients of thermal expansion and an intermediate member. The first and second members are joined together through the intermediate member. The intermediate member has yield stress smaller than those of the first and second members, and a tapered portion is formed at an outer peripheral surface of the intermediate member such that the tapered portion has a variable cross-sectional area orthogonal to an axis of the joined members. The area is larger at one end of the tapered portion near one of the first and second members having a smaller coefficient of thermal expansion than the area at the other end of the tapered portion near the other one of the first and second members having a larger coefficient of thermal expansion. A method of joining such first and second members having different coefficients of thermal expansion through the intermediate member is also disclosed.

公开(公告)号：US5147189A

公开(公告)日：1992-09-15

申请号：US743286

申请日：1991-10-31

Applicant: Ulrich Barnowski

Inventor： Ulrich Barnowski

IPC: F04B19/02 ,  F04B53/16

CPC classification number: F04B53/166 ,  F05C2201/0436 ,  F05C2201/0448

Abstract: A maximum-pressure plunger plump has, coaxial with its longitudinal axis, a compression valve and a suction valve. It has a sleeve that floats on a plunger. The sleeve rests on the end facing the head of the pump on an inset. the inset is provided with a seat area for the body of the suction valve and with suction channels. The sleeve has a bushing. The suction valve is in a form of a disk. It has a spring-loaded annular body that rests on the valve-seat area that the suction channels open out of in the insert in the pump head.The plunger's bushing (9) extends to th eend of the sleeve (7) that faces the head (2) of the pump with its face against the insert (12) and in that a sealing sleeve (15) that overlaps the area or seam of impact between the insert and the sleeve is accommodated in the flow channel between the bushing and the insert.

Abstract translation: PCT No.PCT / DE91 / 00020 Sec。 371日期1991年10月31日 102（e）日期1991年10月31日PCT 1991年1月11日PCT PCT。 出版物WO91 / 10830 PCT 日期1991年7月25日。最大压力柱塞丰满与其纵向轴线同轴，具有压缩阀和吸入阀。 它有一个漂浮在柱塞上的套筒。 套筒位于插入插头上面对泵头部的一端。 插入件具有用于吸入阀主体和抽吸通道的座位区域。 套筒有衬套。 吸入阀是盘的形式。 它具有弹簧加载的环形体，其位于阀座区域上，吸入通道在泵头中的插入件中打开。 柱塞的衬套（9）延伸到套筒（7）的面向泵的头部（2）的端部，其面朝着插入件（12），并且与该区域或接缝重叠的密封套筒（15） 插入件和套筒之间的冲击被容纳在衬套和插入件之间的流动通道中。

公开(公告)号：US5086733A

公开(公告)日：1992-02-11

申请号：US398006

申请日：1989-08-23

Applicant: Kazuo Inoue ,  Noriyuki Kishi ,  Hiroo Shimada ,  Masakatsu Miyao ,  Katsunori Nakamura ,  Tsuneo Konno ,  Harumi Taketomi

Inventor： Kazuo Inoue ,  Noriyuki Kishi ,  Hiroo Shimada ,  Masakatsu Miyao ,  Katsunori Nakamura ,  Tsuneo Konno ,  Harumi Taketomi

IPC: F01P3/02 ,  F02B1/04 ,  F02B75/18 ,  F02F1/10 ,  F02F1/14 ,  F02F1/16 ,  F02F1/24 ,  F02F1/42 ,  F02F7/00

CPC classification number: F02F1/16 ,  F01P3/02 ,  F02F1/108 ,  F02F1/14 ,  F02F1/4214 ,  F02F7/0007 ,  F02B1/04 ,  F02B2075/1816 ,  F02B2275/18 ,  F02F2001/104 ,  F02F2001/245 ,  F05C2201/021 ,  F05C2201/0448 ,  F05C2253/16 ,  F05C2253/20

Abstract: In a cooling system for a multi-cylinder engine, a main gallery is provided around outer peripheral portions of the plurality of cylinder bores upstream a block-side coolant jacket to commonly surround the cylinder bores, and an upstream coolant gallery is provided between the block-side coolant jacket and the main coolant gallery to separately surround each of outer peripheries of the cylinder bores. The upstream coolant gallery and the main coolant gallery is in communication with each other through a constriction communication passage provided around the outer periphery of each of the cylinder bores, and the upstream coolant gallery is further in communication with an upstream end of the block-side coolant jacket. The cooling system further includes a block-side and flange-surrounding coolant gallery provided in the cylinder block to surround an outer periphery of the outward flange of a cylinder liner, and a plurality of dispensing passages permitting the communication between said block-side coolant jacket and said flange-surrounding coolant gallery. Further, a jacket sidewall is disposed in the cylinder head inside at least one of opposite outside walls in an axial direction of a crank shaft to define a head-side coolant jacket.

公开(公告)号：US5065508A

公开(公告)日：1991-11-19

申请号：US423119

申请日：1989-10-19

Applicant: Gustavo F. Lorento ,  Jose A. C. Mendes ,  Joao A. D. Cullen

Inventor： Gustavo F. Lorento ,  Jose A. C. Mendes ,  Joao A. D. Cullen

IPC: B23P15/10 ,  F02F3/00 ,  F16J1/00

CPC classification number: F16J1/003 ,  B23P15/10 ,  F02F3/003 ,  F02F2003/0061 ,  F02F2200/04 ,  F05C2201/021 ,  F05C2201/0448 ,  Y10T29/49302 ,  Y10T29/49306

Abstract: A method for the manufacture of a two-piece piston wherein the top portion and the pin boss portion, which define the piston head, are fabricated separately by cold or hot forming, casting or sintering, and joined together by welding such as, for instance, friction welding. The top portion and the pin boss portion may be of the same material or different materials, and obtained by the same method or by different methods.

Abstract translation: 一种用于制造两件式活塞的方法，其中限定活塞头的顶部部分和销凸起部分通过冷或热成形，铸造或烧结而分开制造，并通过焊接例如 ，摩擦焊接。 顶部和销凸起部分可以是相同的材料或不同的材料，并且通过相同的方法或通过不同的方法获得。

公开(公告)号：US5052281A

公开(公告)日：1991-10-01

申请号：US499893

申请日：1990-03-27

Applicant: Yasuhiro Kawabata ,  Soichi Hara ,  Shirou Machida ,  Hiroshi Kageyama

Inventor： Yasuhiro Kawabata ,  Soichi Hara ,  Shirou Machida ,  Hiroshi Kageyama

IPC: F02F3/00 ,  F02F3/26

CPC classification number: F02F3/26 ,  F05C2201/021 ,  F05C2201/0448

Abstract: A piston installed into a cylinder of an engine includes annular projections formed in axially spaced relation on a top land facing a cylinder inner wall and having a saw-toothed cross-section in which the external diameter of the projections are such that, when cold, that adjacent the lower end of the top land is greater than that adjacent the upper end thereof. Thereby the effective clearance between the top land face and the cylinder inner wall is reduced. This causes a reduction in the hydrocarbon content of the incompletely consumed combustion gas, and prevents the temperature from rising in the top ring groove and thus prevents the wearing of the groove.

Abstract translation: 安装在发动机气缸中的活塞包括在面向气缸内壁的顶部区域上以轴向隔开的关系形成的环形突起，并且具有锯齿形横截面，其中突出部的外径在冷时， 与顶部区域的下端相邻的位置大于邻近其上端的位置。 由此，能够减小顶面和气缸内壁之间的有效间隙。 这导致不完全消耗的燃烧气体的烃含量的降低，并且防止温度在顶环槽中上升，从而防止槽的磨损。

公开(公告)号：US5042441A

公开(公告)日：1991-08-27

申请号：US416396

申请日：1989-10-03

Applicant: Marius A. Paul ,  Ana Paul

Inventor： Marius A. Paul ,  Ana Paul

IPC: F01B7/14 ,  F02B1/04 ,  F02B3/06 ,  F02B75/06 ,  F02B75/22 ,  F02B75/28

CPC classification number: F02B75/065 ,  F01B7/14 ,  F02B75/225 ,  F02B1/04 ,  F02B2275/40 ,  F02B3/06 ,  F02B75/28 ,  F05C2201/0448 ,  Y02T10/125

Abstract: A combustion system for internal combustion engines having a cylinder, at least one piston reciprocal in the cylinder and a combustion chamber with three regions for improving the combustion process, the piston having a piston head with an outer perimeter portion, a central recessed portion and a baffle with ports arranged over the recessed portion, the piston cooperating with a cylinder head or the head of an opposed piston to form an induction region that diminishes in volume as the piston approaches top dead center forcing gases in the combustion chamber through a central region defined primarily by the ports in the baffle to the dispersing region in the recessed portion of the piston, and a fuel injection system with an injector that delivers a staged series of fuel pulses in each cycle.

Abstract translation: 一种用于内燃机的燃烧系统，其具有气缸，在气缸中往复运动的至少一个活塞和具有改进燃烧过程的三个区域的燃烧室，所述活塞具有活塞头，其具有外周边部分，中心凹部和 挡板，其具有布置在凹陷部分上方的端口，活塞与气缸盖或相对的活塞的头部协作以形成感应区域，当活塞接近顶部死点时，体积减小，迫使燃烧室中的气体通过限定的中心区域 主要通过挡板中的端口到活塞的凹陷部分中的分散区域，以及具有喷射器的燃料喷射系统，其在每个循环中传送分级的燃料脉冲。

公开(公告)号：US5000078A

公开(公告)日：1991-03-19

申请号：US424243

申请日：1989-10-02

Applicant: Hugo Gabele

Inventor： Hugo Gabele

IPC: F02F3/02 ,  F02F3/04 ,  F16J1/01 ,  F16J1/04

CPC classification number: F02F3/022 ,  F02F3/042 ,  F05C2201/021 ,  F05C2201/0448

Abstract: The external profile of a piston rod employed in the engines of passenger cars ensures smoother piston travel on start-up and during partial loading. In these operating ranges, piston ring parts may impact on the sliding surface of the cylinder on the counter-pressure side and give rise, amongst other things, to undesirable noise. To obviate such impacts, the piston rod tapers at the end facing the crankshaft space on the counter-pressure side, and has a transversal slit (3) at its junction with the piston head and an adjustment strip (4) in the vicinity of the said slit. An additional adjustable strip (5) may also be provided in the lower part of the rod, on the pressure side. As a result of the position of the adjustment strips, the special design of the piston and the special shape of the rod casing, the piston head aligns itself at a slight angle to the counter-pressure side, with increasing play between the piston head and the sliding surface of the cylinder in the said operating ranges.

Abstract translation: PCT No.PCT / EP88 / 00321 Sec。 371日期1989年10月2日第 102（e）日期1989年10月2日PCT提交1987年4月18日PCT公布。 出版物WO88 / 08078 1988年10月20日。乘用车发动机中使用的活塞杆的外形确保启动时和部分加载期间更平稳的活塞行程。 在这些操作范围内，活塞环部分可能会碰撞在反压侧上的气缸的滑动表面上，并且产生不期望的噪音。 为了消除这种冲击，活塞杆在面向反压侧的曲轴空间的端部处变细，并且在其与活塞头的连接处具有横向狭缝（3）和位于附近的调节带（4） 说狭缝 还可以在压力侧的杆的下部设置附加的可调节条（5）。 由于调节条的位置，活塞的特殊设计和杆壳的特殊形状，活塞头自身与反压侧成一个微小的角度，随着活塞头和 在所述工作范围内的气缸的滑动表面。