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公开(公告)号：US20190242257A1
公开(公告)日：2019-08-08
申请号：US15890244
申请日：2018-02-06
摘要： A reciprocating piston and cylinder apparatus with adjustable stroke volume. The apparatus comprises an axially displaceable traveling cylinder, a stationary piston, and an optional sleeve secured to the traveling cylinder in a detachable manner. The traveling cylinder is displaced along its axis by a thrust component and acts cooperatively with the stationary piston to create a pressure change within the housing.
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公开(公告)号：US20180274675A1
公开(公告)日：2018-09-27
申请号：US15991503
申请日：2018-05-29
发明人： Richard MITTLER , Frank NATHEM
CPC分类号： F16J9/206 , F16J1/08 , F16J9/26 , F16J15/3244
摘要： A piston ring having an outer running face, two flanks and an inner circumferential face is provided. The running face has profiling. The profile of the running face is substantially convexly curved and has an apex. The axial position of the apex varies periodically in the circumferential direction.
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公开(公告)号：US10077659B1
公开(公告)日：2018-09-18
申请号：US15890237
申请日：2018-02-06
CPC分类号： F01B15/02 , F04B39/0005 , F04B39/005 , F04B53/144 , F04C9/00 , F16J1/08 , F16J1/10 , F16J1/12
摘要： A plunger and cylinder assembly for the fluid end of a reciprocating pump. The assembly comprises a traveling cylinder, a stationary plunger, and an optional sleeve secured to the traveling cylinder in a detachable manner. The traveling cylinder is displaced along its axis by a thrust component and acts cooperatively with the stationary plunger to create a pressure change in the reciprocating pump.
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公开(公告)号：US20180252316A1
公开(公告)日：2018-09-06
申请号：US15970594
申请日：2018-05-03
CPC分类号： F16J9/08 , F15B15/1452 , F16J1/008 , F16J1/08
摘要： Pistons are disclosed herein. An apparatus includes an actuator defining a first chamber; and a piston disposed in the first chamber, the piston including a second chamber and a seal groove in which a seal is disposed, the second chamber to receive fluid from the first chamber to enable a force imparted by the fluid within the second chamber to urge the seal into sealing engagement with a surface defining the first chamber.
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公开(公告)号：US20170335793A1
公开(公告)日：2017-11-23
申请号：US15657661
申请日：2017-07-24
申请人： FEDERAL-MOGUL LLC
发明人： NORBERT G. SCHNEIDER
CPC分类号： F02F3/285 , B21K1/185 , F02F3/003 , F02F3/22 , F02F3/26 , F02F2003/0061 , F02F2200/04 , F05C2201/0448 , F16J1/08 , Y10T29/49249
摘要： A steel piston with an oil gallery, and process for forming a steel piston oil gallery channel, which corresponds to the complex shape of the combustion bowl in the piston crown. The oil gallery channel is first forged to the basic shape that corresponds to the shape of the walls of the combustion bowl. Machine-turning surfaces in the oil gallery channel can be machine-finished as desired. Surfaces in the oil gallery which cannot be machined with conventional turning operations, such as recesses and protrusions into the channel, are left in the original forged condition.
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公开(公告)号：US09581105B2
公开(公告)日：2017-02-28
申请号：US14966210
申请日：2015-12-11
CPC分类号： F02F3/10 , B23K26/364 , B23K2101/003 , F02F3/00 , F16J1/08
摘要： A piston for an internal combustion engine includes a piston main body for the internal combustion engine, and a crosshatched groove being formed on a surface of the piston main body. The crosshatched groove includes a crosshatch angle that corresponds to a crossing angle of lines that configure a crosshatch, the crosshatch angle that is set at a range from equal to or greater than 15 degrees to equal to or less than 35 degrees.
摘要翻译： 内燃机的活塞包括内燃机的活塞主体和在活塞主体的表面上形成的交叉阴影线槽。 交叉阴影线槽包括对应于构成交叉阴影线的线的交叉角的交叉影线角，设置在等于或大于15度至等于或小于35度的范围的交叉影线角。
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70.发明申请REDUCED COMPRESSION HEIGHT DUAL GALLERY PISTON, PISTON ASSEMBLY THEREWITH AND METHODS OF CONSTRUCTION THEREOF 审中-公开降低压缩高度双画廊活塞，活塞组件及其构造方法公开(公告)号：US20160186686A1
公开(公告)日：2016-06-30
申请号：US14981319
申请日：2015-12-28
发明人： Miguel Azevedo , Michael Weinenger
CPC分类号： F02F3/22 , F02F3/003 , F02F3/18 , F02F3/26 , F02F2003/0007 , F02F2003/0061 , F16C7/023 , F16J1/08 , F16J1/09 , F16J1/14
摘要： A piston assembly, piston therefor and methods of construction are provided. The assembly includes a piston head and connecting rod operably coupled thereto via a wrist pin. The piston head has an upper crown with a combustion bowl and an undercrown surface. The lower crown includes axially aligned pin bores receiving the wrist pin. An upper wall of the lower crown has an oil inlet, an oil outlet and a concave, saddle bearing surface that bears against the wrist pin. A toroid-shaped outer cooling gallery is formed between wall portions of the upper and lower crowns, wherein the outer cooling gallery surrounds an inner cooling gallery. The connecting rod is fixed to the wrist pin for conjoint oscillation. The connecting rod has an oil passage in fluid communication with a through hole in the wrist pin to allow oil to flow therethrough into the inner cooling gallery via the oil inlet.
摘要翻译： 提供一种活塞组件，活塞及其结构方法。 组件包括经由腕销可操作地连接到其上的活塞头和连杆。 活塞头具有具有燃烧碗和下凸表面的上冠。 下冠包括轴向对齐的销孔，其接收腕针。 下冠的上壁具有一个油入口，一个出油口和一个支撑在腕针上的凹面的马鞍轴承表面。 在上冠和下冠的壁部之间形成环形外部冷却廊，其中外部冷却廊围绕内部冷却廊。 连杆固定在腕针上，用于共振。 连杆具有与腕针中的通孔流体连通的油通道，以允许油通过进油口流入内冷却槽。
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