公开(公告)号：US4809652A

公开(公告)日：1989-03-07

申请号：US903317

申请日：1986-09-03

申请人： Gunder Essig ,  Manfred Bordt

发明人： Gunder Essig ,  Manfred Bordt

IPC分类号： F16J1/01 ,  F02F3/00 ,  F02F3/02 ,  F16J1/02 ,  F16J1/08

CPC分类号： F02F3/027 ,  F02F3/022 ,  F16J1/02 ,  F16J1/08

摘要： In a light alloy piston each of the load-carrying skirt surfaces is divided into a plurality of load-carrying skirt surface portions. In order to ensure that the upper portion of the piston skirt will carry load on a large area even when the engine is warming up, a plurality of depressions extending in the peripheral direction of the piston skirt are formed in the latter between its clearance-defining top and bottom ends.

摘要翻译： 在轻合金活塞中，每个载荷裙边表面被分成多个载荷裙边表面部分。 为了确保活塞裙部的上部即使在发动机正在升温时也能在大面积上承载负载，在活塞裙部的周向延伸的多个凹部在其间隙限定 顶端和底端。

公开(公告)号：US4691622A

公开(公告)日：1987-09-08

申请号：US785319

申请日：1985-10-07

申请人： Wilfried Sander ,  Gunder Essig ,  Erich Wacker

发明人： Wilfried Sander ,  Gunder Essig ,  Erich Wacker

IPC分类号： F02F3/02 ,  F16J1/02 ,  F16J1/08 ,  F16J1/04

CPC分类号： F02F3/022 ,  F02F3/027 ,  F16J1/02 ,  F16J1/08 ,  F05C2201/0448

摘要： In a light alloy piston each of the load-carrying skirt surfaces is divided by a depression into two load-carrying partial shaft surfaces.In order to reduce the friction losses and the consumption of lubricant the depth of the depression (8, 9) between the tapered portions of the curved generatrix (7) at the top and bottom ends of the skirt is approximately twice the peak-to-valley height of the machined surface of the skirt (1). The load-carrying partial skirt surfaces (10, 11, 12, 13) and the depression (8, 9) are at least as wide as the wear pattern area, and the axial extent of the depression (8, 9) is so selected that the depression will not protrude from the cylinder when the piston is at its lower dead center and in the cold engine the load-carrying partial skirt surfaces (10, 11, 12, 13) have between the upper limit of the depression and the lower limit of the tapered portion of the curved generatrix (7) at top end of the skirt an axially parallel portion in a height of 1.5 to 4.5 mm, preferably 1.5 to 2.5 mm.

摘要翻译： 在轻合金活塞中，每个载荷裙边表面被凹陷分成两个载荷部分轴表面。 为了减少摩擦损失和润滑剂的消耗，在裙部的顶端和底端处的弯曲母线（7）的锥形部分之间的凹陷（8,9）的深度大约是峰 - 裙部（1）的加工表面的谷高度。 负载部分裙部表面（10,11,12,13）和凹陷（8,9）至少与磨损图案区域一样宽，并且凹部（8,9）的轴向范围如此选择 当活塞处于其下死点时，凹陷不会从气缸突出，并且在冷发动机中，承载部分裙部表面（10,11,12,13）之间具有凹陷的上限和下部 在裙部顶端的弯曲母线（7）的锥形部分的极限为1.5至4.5mm，优选为1.5至2.5mm的高度的轴向平行部分。