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1. 发明授权

US4987866A Light alloy piston for internal combustion engines 失效
标题翻译：轻型合金内燃机活塞
公开(公告)号：US4987866A
公开(公告)日：1991-01-29
申请号：US495812
申请日：1990-03-16
申请人： Siegfried Mielke , Wilfried Weber , Werner Steidle
发明人： Siegfried Mielke , Wilfried Weber , Werner Steidle
IPC分类号： F02B3/06 , F02B23/06 , F02F3/02 , F02F3/22 , F16J1/16
CPC分类号： F02B23/0672 , F02B23/0636 , F02F3/025 , F02F3/225 , F16J1/16 , F02B3/06 , F05C2201/021 , Y02T10/125
摘要： A light-alloy piston for internal combustion engine, is formed in the piston head with a combustion chamber recess. The stresses which are induced at the rim of the combustion chamber recess by the ignition pressure are reduced by the provision of an inwardly extending blind hole in the portions between the ring groove for the lowermost compression ring and the top apex of the bores in the piston pin bosses.
摘要翻译：用于内燃机的轻合金活塞在具有燃烧室凹部的活塞头中形成。通过在用于最下压缩环的环槽和活塞中的孔的顶部顶点之间的部分中设置向内延伸的盲孔来减小在燃烧室凹部的边缘处由点火压力引起的应力销老板。

2. 发明授权

US4887519A Expansion-controlled light alloy piston 失效
标题翻译：膨胀控制轻合金活塞
公开(公告)号：US4887519A
公开(公告)日：1989-12-19
申请号：US841632
申请日：1986-03-19
申请人： Werner Steidle
发明人： Werner Steidle
IPC分类号： F02F3/04
CPC分类号： F02F3/042 , F05C2201/021 , F05C2201/0448
摘要： In expansion-controlled light alloy pistons for internal combustion engines, expansion control elements made of steel are bonded to the carrying portions of the cast skirt on the inside peripheral surface thereof and are embedded in the hubs of the piston pin bosses. To provide for an optimum expansion control action throughout the height of the piston skirt, the expansion control elements are provided on both sides of the plane of oscillation of the connecting rod with an aperture, which is open toward the end of the skirt and has a height amounting to at least 30% of the height of the expansion control elements. Said aperture has a peripheral dimension amounting to more than 10% of the piston diameter. Projections for supporting the expansion control element at its edges defining the aperture protrude into the latter.
摘要翻译：在用于内燃机的膨胀控制的轻合金活塞中，由钢制成的膨胀控制元件在其内周面上与铸造裙的承载部分接合，并嵌入活塞销凸台的毂中。为了在活塞裙部的整个高度上提供最佳的膨胀控制动作，膨胀控制元件设置在连杆的摆动平面的两侧，孔的开口朝着裙部的端部敞开，并且具有高度达到膨胀控制元件的高度的至少30％。所述孔的周长尺寸大于活塞直径的10％以上。用于支撑膨胀控制元件在其限定孔径的边缘处的突起突出到后者中。

3. 发明授权

US4138984A Light alloy piston for diesel engines 失效
标题翻译：柴油发动机轻合金活塞
公开(公告)号：US4138984A
公开(公告)日：1979-02-13
申请号：US658006
申请日：1976-02-13
申请人： Werner Steidle , Wilfried Sander , Ernst Deubelbeiss
发明人： Werner Steidle , Wilfried Sander , Ernst Deubelbeiss
IPC分类号： F02F3/12 , F02B3/06 , F02B23/06 , F02F3/10 , F02F3/26
CPC分类号： F02B23/0675 , F02B23/0651 , F02F3/10 , F02B2023/0612 , F02B2275/14 , F02B3/06 , F05C2201/021 , F05C2201/0448 , Y02T10/125
摘要： A light alloy piston for diesel engines includes a piston head coated with a hard annodized layer having a combustion chamber recess and/or a fuel-guiding channel provided adjacent to the edge of the combustion chamber recess and/or valve pockets. The piston head is free of a hard anodized layer in those regions which are highly stressed by gas and mass forces. Preferably those regions of the piston head adjacent to edge portions of the combustion chamber recess lying in the direction of the piston pin are free of a hard anodized layer.
摘要翻译：用于柴油发动机的轻合金活塞包括涂覆有具有燃烧室凹部和/或邻近燃烧室凹部和/或阀口的边缘设置的燃料引导通道的硬复层的活塞头。在气体和质量力受高度压力的区域中，活塞头没有硬质阳极氧化层。优选地，与位于活塞销方向上的燃烧室凹部的边缘部分相邻的活塞头部的那些区域不含硬质阳极氧化层。

4. 发明授权

US4354426A Expansion-controlled light alloy piston 失效
标题翻译：膨胀控制轻合金活塞
公开(公告)号：US4354426A
公开(公告)日：1982-10-19
申请号：US212289
申请日：1980-12-03
申请人： Werner Steidle
发明人： Werner Steidle
IPC分类号： F02F3/02 , F02F3/04 , F16J1/04
CPC分类号： F02F3/04 , F02F3/02 , F05C2201/021 , F05C2201/0448 , F05C2251/042
摘要： To provide for separate expansion control actions at the top and bottom edges of the skirt of an expansion-controlled light alloy piston, to prevent a direct propagation of deformation between the top and bottom edges of the skirt and to reduce the skirt area between the top and bottom edges of the skirt, the skirt of the piston is provided at its periphery with a transverse slot, which extends around the entire periphery of the skirt or part thereof and is disposed on the level of the piston pin boss.
摘要翻译：为了在膨胀控制的轻合金活塞的裙部的顶部和底部边缘处提供单独的膨胀控制动作，以防止裙部的顶部和底部边缘之间的变形的直接传播并且减小顶部之间的裙部区域和裙部的底边缘，活塞的裙部在其周边处设置有横向狭槽，横向槽围绕裙部或其一部分的整个周边延伸，并且设置在活塞销凸台的高度上。

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