公开(公告)号：US5048398A

公开(公告)日：1991-09-17

申请号：US368298

申请日：1989-06-07

Applicant: Horst Pfeiffenberger ,  Emil Ripberger ,  Jurgen Ellermann

Inventor： Horst Pfeiffenberger ,  Emil Ripberger ,  Jurgen Ellermann

IPC: F02F3/00 ,  F02F3/02 ,  F02F3/08 ,  F16J1/00

CPC classification number: F02F3/08 ,  F02F3/02 ,  F02F2200/06 ,  F05C2201/021 ,  F05C2201/0448 ,  F05C2251/042

Abstract: The technical problem is to reduce the operating noise of such a piston. It is solved by means of a piston having the following dimensions: a) A=(0.45-0.65) D; b) H=(0.25-0.4) D; c) A=(0.3-0.4) D; d) A greater than or equal to B; e) T=(0.45-0.8) D; f) the piston ribs between the annular grooves (2, 3, 4) and the rod region with a very narrow operating clearance have, in the case of a hot operating piston, approximately the same clearance in relation to the cylinder operating path. An additional improvement consists in inserting an annular jacket in the piston head in the radial region behind the annular grooves, said jacket consisting of a material having a thermal expension factor less than that of the basic piston material. In a hot operating internal combustion engine, the piston has, in the region of the ribs, a clearance which, in the direction pressure/counter-pressure reaches approximately only 3-5 times the clearance in the very narrow clearance region of the piston rod.

Abstract translation: PCT No.PCT / DE87 / 00593 Sec。 371日期1989年6月7日第 102（e）日期1989年6月7日PCT Filted 1987年12月16日PCT公布。 出版物WO88 / 04724 日期：1988年6月30日。技术问题是减少这种活塞的运行噪音。 通过具有以下尺寸的活塞来解决：a）A =（0.45-0.65）D; b）H =（0.25-0.4）D; c）A =（0.3-0.4）D; d）大于或等于B; e）T =（0.45-0.8）D; f）在热操作活塞的情况下，在环形槽（2,3,4）和具有非常窄的工作间隙的杆区域之间的活塞肋相对于气缸操作路径具有大致相同的间隙。 另外的改进在于在环形凹槽后面的径向区域中的活塞头中插入环形夹套，所述护套由具有小于基本活塞材料的热膨胀系数的材料构成。 在热操作的内燃机中，活塞在肋的区域中具有间隙，该间隙在活塞杆的非常窄的间隙区域中的压力/反压力达到大约仅3-5倍的间隙 。

公开(公告)号：US4669366A

公开(公告)日：1987-06-02

申请号：US760929

申请日：1985-07-31

Applicant: Jurgen Ellermann ,  Horst Pfeiffenberger ,  Emil Ripberger

Inventor： Jurgen Ellermann ,  Horst Pfeiffenberger ,  Emil Ripberger

IPC: F02F3/02 ,  F02B1/04 ,  F02F3/04 ,  F02F3/08 ,  F16J1/04

CPC classification number: F16J1/04 ,  F02F3/08 ,  F02B1/04 ,  F05C2201/021 ,  F05C2201/0448

Abstract: In a plunger piston for internal combustion engines, having a regulating strip in the piston body, the regulating strip is arranged in the axial middle third of the height of the piston body and the regulating effect is designed so that the piston body possesses its narrowest installation play uniformly at the level of the regulating strip equally in the cold installation state and in the engine operation. Above and below this region with minimum installation play the piston body possesses spherically retracted end regions at its upper and lower ends for the generation of hydrodynamic lubricant oil wedges.

Abstract translation: 在用于内燃机的柱塞活塞中，在活塞体中具有调节带，调节带布置在活塞体的高度的三分之一的轴向中心处，并且调节效果被设计成使得活塞体具有最窄的安装 在冷装置状态和发动机运转中均匀地均匀地在调节带的水平面上均匀地起作用。 在该区域的上方和下方，在最小安装时，活塞体在其上端和下端具有球形缩回的端部区域，用于产生流体动力润滑油楔。

公开(公告)号：US4599935A

公开(公告)日：1986-07-15

申请号：US662094

申请日：1984-10-18

Applicant: Jurgen Ellermann ,  Horst Pfeiffenberger

Inventor： Jurgen Ellermann ,  Horst Pfeiffenberger

IPC: F02F3/00 ,  F16J1/02 ,  F16J1/08 ,  F01M1/04

CPC classification number: F16J1/08 ,  F02F3/00

Abstract: A piston for internal combustion engines, which has inclined surface portions in the skirt area to allow formation of hydrodynamic wedges of lubricant, these surface portions being constructed as skirt recesses (13 or 14) which are open either towards the upper or towards the lower end of the piston skirt. The transition zone from these skirt recesses to the bearing surface of the working surface of the piston is constituted by oblique surfaces which are inclined inwardly from the surface of the skirt. The oblique surfaces terminate in a circumferential direction within the bearing surfaces of the piston. The oblique surfaces constitute ramps on which a hydrodynamic wedge of lubricacting oil can form. The particular advantage of disposing the oblique surfaces in skirt depressions which are only open at one end lies in that when the hydrodynamic wedge of lubricating oil builds up as a result of the translatory motion of the piston, the oil which forms the wedge of lubricant cannot escape in a peripheral direction which thereby increases the frictional quality (or aqua-planing effect) between the working surfaces of the piston and cylinder.

Abstract translation: 一种用于内燃机的活塞，其在裙部区域中具有倾斜的表面部分以允许形成润滑剂的流体动力楔，这些表面部分被构造为裙部凹口（13或14），其朝向上部或下部开口 的活塞裙。 从这些裙部凹部到活塞的工作面的支承面的过渡区域由从裙部的表面向内倾斜的倾斜面构成。 倾斜表面在活塞的支承表面内沿圆周方向终止。 倾斜表面构成其上可形成润滑油的流体动力楔的斜面。 将倾斜表面设置在仅在一端开口的裙部凹陷中的特别优点在于当润滑油的流体动力楔由于活塞的平移运动而积聚时，形成润滑剂楔的油不能 在圆周方向上逸出，从而增加活塞和气缸的工作表面之间的摩擦质量（或水平面效应）。

公开(公告)号：US4346646A

公开(公告)日：1982-08-31

申请号：US170622

申请日：1980-07-21

Applicant: Jurgen Ellermann

Inventor： Jurgen Ellermann

IPC: F02F3/00 ,  F02F3/22 ,  F16J1/00 ,  F02F3/02

CPC classification number: F02F3/0023 ,  F02F3/22 ,  F16J1/005 ,  F05C2201/021 ,  F05C2201/0448

Abstract: Piston for internal combustion engines having a piston body consisting of light metal and a crown plate consisting of a metal of lower thermal conductivity which is secured axially to the piston body by means of necked-down screws and centered radially in relation to the piston body by means of an annular fit, and in which the outer ring of the fit is formed by the crown plate in the region of the sliding surface and the inner ring of the fit is formed by the piston body, in which at room temperature a gap widening in the direction towards the piston foot is provided between the annular surfaces of crown plate and piston body meeting in the annular fit, in such a way that the annular surfaces lie firmly against one another only at their ends pointing towards the piston head, and that this gap is reduced at working temperature.

Abstract translation: 内燃机的活塞具有由轻金属组成的活塞体和由导热性较差的金属构成的冠状板，所述冠状体通过颈缩螺钉轴向固定在活塞体上，并相对于活塞体径向相对于活塞体定心 环形配件的装置，其中配合的外圈在滑动面的区域由顶板形成，并且配合的内圈由活塞体形成，其中在室温下间隙变宽 在朝向活塞脚的方向上设置在冠形板和活塞体的环形表面之间，以环形配合的方式会合，使得环形表面仅在指向活塞头的端部处彼此牢固地相互抵靠，并且， 这个差距在工作温度下降低。

公开(公告)号：US5158008A

公开(公告)日：1992-10-27

申请号：US688583

申请日：1991-06-24

Applicant: Emil Ripberger ,  Jurgen Ellermann

Inventor： Emil Ripberger ,  Jurgen Ellermann

IPC: F02B1/04 ,  F02F3/02 ,  F02F3/04 ,  F16J1/00

CPC classification number: F02F3/025 ,  F02F3/022 ,  F02B1/04

Abstract: A piston having a head with ring grooves, a skirt having hub bores, and a pin, with the following dimensions:L/D=0.45-0.8H/D=0.25-0.5A/D=0.3-0.5T/D=0.45-0.8whereL=maxium length of the pistonD=maximum diameter of the pistonH=compression heightA=maximum skirt height below the bottom ring groove in a peripheral area having the approximate same skirt height of at least 45 degrees on the major thrust face of the piston with approximately symmetrical division of this area on both sides of a plane extending perpendicular to the pin axis and passing through the longitudinal axis of the piston,T=diametrically opposite distance between the hub bore ends located radially on the outside.The skirt bulges along the axis of the piston and has an oval cross-section. An axis of the hub bores is offset slightly towards the major thrust face. The piston includes a horizontal slit, which separates the head from the skirt. In a polar plane perpendicular to the piston axis the skirt has a greater ovality on the minor thrust face. The minor thrust face side of the skirt is structured to bulge less in its upper area, adjacent to the bottom ring groove. The skirt is longer on the major thrust face. The wall thickness is greater on the major thrust face.

Abstract translation: PCT No.PCT / DE89 / 00745 Sec。 371日期1991年6月24日 102（e）1991年6月24日PCT 1989年11月29日PCT公布。 出版物WO90 / 07642 日期：1990年7月12日。具有环形凹槽头部的活塞，具有毂孔的裙部和销，具有以下尺寸：L / D = 0.45-0.8H / D = 0.25-0.5A / D = 0.3 -0.5 T / D = 0.45-0.8其中L =活塞的最大长度D =活塞的最大直径H =压缩高度A =在具有大致相同裙边高度的外围区域中的底环槽下方的最大裙部高度 在活塞的主推力面上至少45度，在垂直于销轴线延伸并穿过活塞的纵向轴线的平面的两侧上大致对称地划分该区域，T =轮毂孔端部之间的直径相对的距离 径向位于外面。 裙部沿着活塞的轴线凸出并且具有椭圆形的横截面。 轮毂孔的轴线稍微偏向主推力面。 活塞包括水平狭缝，其将头部与裙部分开。 在垂直于活塞轴的极平面中，裙部在小推力面上具有较大的椭圆度。 裙部的小推力面侧构造成在其上部区域中较小地凸出，邻近底环槽。 裙子在主推面上更长。 主推面上的壁厚更大。