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：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：US4730549A

公开(公告)日：1988-03-15

申请号：US297573

申请日：1981-08-31

Applicant: Horst Pfeiffenberger

Inventor： Horst Pfeiffenberger

IPC: F02F3/00 ,  F02F3/04 ,  F16J1/02 ,  F16J1/16 ,  F16J1/04 ,  F02F3/02

CPC classification number: F16J1/16 ,  F02F3/00 ,  F05C2201/021 ,  F05C2201/0448

Abstract: A piston made of cast aluminum base alloy is provided with gudgeon pin bosses which are connected to the piston skirt by means of a frusto-conical strut which has recesses in the skirt and are specially dimensioned to leave large unsupported skirt areas to minimize risk of seizure in an engine cylinder; in particular the distance between the outer surfaces of the bosses is from 0.6 to 0.8 of the outer diameter of the piston and the distance between the inner surfaces of the bosses is 25 to 35 percent of the outer diameter of the piston, and the cone angle of the struts is from 60.degree. to 110.degree..

Abstract translation: 由铸铝基合金制成的活塞设置有舵头销凸台，其通过截头圆锥形支柱连接到活塞裙部，该截头圆锥形支柱在裙部中具有凹口，并且具有特别尺寸以留下大的无支撑裙部区域以最小化缉获风险 在发动机气缸中; 特别地，凸台的外表面之间的距离为活塞外径的0.6至0.8，凸台的内表面之间的距离为活塞外径的25至35％，锥角 支柱从60°到110°。

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。