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1.发明授权公开(公告)号：US10065276B2
公开(公告)日：2018-09-04
申请号：US14817385
申请日：2015-08-04
发明人： Miguel Azevedo , Michael Weinenger
摘要： A piston assembly and method of construction thereof for an internal combustion engine are provided. The assembly includes a piston head having an upper combustion wall with an undercrown surface and a ring belt region. The piston head has a floor with an upper surface and a bottom surface. The floor is spaced beneath the upper combustion wall in radial alignment with the ring belt region. A substantially enclosed, annular cooling gallery is bounded by the undercrown surface and the floor. A pair of pin bores depends directly from the floor of the cooling gallery. The assembly further includes a pin having ends configured for oscillating receipt in the pin bores. A pin bearing surface extends within the pin bores and between the pin bores in the lower surface of the floor. The assembly includes a connecting rod with an end fixed to the pin for conjoint oscillation therewith.
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公开(公告)号：US09869268B2
公开(公告)日：2018-01-16
申请号：US14535839
申请日：2014-11-07
发明人： Jeff Riffe , Michael Weinenger
CPC分类号： F02F3/16 , B23P15/10 , F02F3/00 , F02F3/0069 , F02F3/0092 , F02F2003/0007 , Y10T29/49265
摘要： A galleryless piston for an internal combustion engine and method of construction thereof are provided. The piston has a monolithic piston body extending along a central longitudinal axis. The piston body has an upper wall forming an upper combustion surface with first and second portions, with the first portion extending annularly along an outer periphery of the upper wall and the second portion forming a combustion bowl. The upper wall has an undercrown surface on an underside of the combustion bowl directly opposite the second portion of the upper combustion surface. The undercrown surface has an openly exposed 2-dimensional surface area, as viewed looking along the central longitudinal axis, between about 35-60 percent of an area defined by a maximum outer diameter of the piston body, thereby providing an expansive area against which oil being splashed or sprayed can freely contact to cool the piston.
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公开(公告)号：US09702317B2
公开(公告)日：2017-07-11
申请号：US14471069
申请日：2014-08-28
发明人： Michael Weinenger
CPC分类号： F02F3/16 , F02F3/003 , F02F3/0092 , F02F3/22 , F02F2003/0061 , Y10T29/49249
摘要： A three section steel piston for two-stroke engines is provided. The piston is provided with an upper section, a middle section and a lower section. Piston ring grooves are formed into the upper and lower sections, and pin bosses with openings and skirts are formed into the middle section. The middle section has relatively thinner walls as compared to the portions of the upper and lower sections at the piston ring grooves to reduce the mass of the piston. A closed cooling gallery may be formed adjacent an upper combustion surface of the piston with the cooling gallery being defined at least partially by the upper section.
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4.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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5.发明授权公开(公告)号：US09127618B2
公开(公告)日：2015-09-08
申请号：US14040259
申请日：2013-09-27
发明人： Miguel Azevedo , Michael Weinenger
CPC分类号： B23P15/08 , F02F3/00 , F02F3/0069 , F02F3/16 , F02F2200/00 , F16J1/005 , F16J1/09 , F16J1/16 , F16J7/00 , Y10T29/49249 , Y10T29/49268
摘要： A piston assembly and method of construction thereof for an internal combustion engine are provided. The assembly includes a piston head having an upper combustion wall with an undercrown surface and a ring belt region. The piston head has a floor with an upper surface and a bottom surface. The floor is spaced beneath the upper combustion wall in radial alignment with the ring belt region. A substantially enclosed, annular cooling gallery is bounded by the undercrown surface and the floor. A pair of pin bores depends directly from the floor of the cooling gallery. The assembly further includes a pin having ends configured for oscillating receipt in the pin bores. A pin bearing surface extends within the pin bores and between the pin bores in the lower surface of the floor. The assembly includes a connecting rod with an end fixed to the pin for conjoint oscillation therewith.
摘要翻译： 提供一种用于内燃机的活塞组件及其构造方法。 该组件包括具有具有下凸表面和环带区域的上燃烧壁的活塞头。 活塞头具有具有上表面和底表面的底板。 地板在上燃烧壁下方与环带区域径向对准。 一个基本封闭的环形冷却廊由底下的表面和地板界定。 一对销孔直接从冷却库的地板上取下。 组件还包括具有构造成用于在销孔中摆动收据的端部的销。 销轴承表面在销孔内部延伸并且在底板的下表面中的销孔之间延伸。 该组件包括连接杆，其端部固定到销上以与其一起振动。
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公开(公告)号：US20150059682A1
公开(公告)日：2015-03-05
申请号：US14471069
申请日：2014-08-28
发明人： Michael Weinenger
CPC分类号： F02F3/16 , F02F3/003 , F02F3/0092 , F02F3/22 , F02F2003/0061 , Y10T29/49249
摘要： A three section steel piston for two-stroke engines is provided. The piston is provided with an upper section, a middle section and a lower section. Piston ring grooves are formed into the upper and lower sections, and pin bosses with openings and skirts are formed into the middle section. The middle section has relatively thinner walls as compared to the portions of the upper and lower sections at the piston ring grooves to reduce the mass of the piston. A closed cooling gallery may be formed adjacent an upper combustion surface of the piston with the cooling gallery being defined at least partially by the upper section.
摘要翻译： 提供了一种用于二冲程发动机的三段钢活塞。 活塞设有上部，中部和下部。 活塞环槽形成在上部和下部，并且具有开口和裙部的销凸起形成中间部分。 与活塞环槽的上部和下部的部分相比，中部具有相对较薄的壁，以减小活塞的质量。 可以在活塞的上部燃烧表面附近形成封闭的冷却库，其中冷却库至少部分地由上部限定。
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公开(公告)号：US10082102B2
公开(公告)日：2018-09-25
申请号：US14159729
申请日：2014-01-21
发明人： Michael Weinenger , Florin Muscas
CPC分类号： F02F3/28 , B23K20/129 , F02F3/22 , F02F3/26 , F02F2003/0061 , F16J1/22 , Y10T29/49252
摘要： A monobloc piston assembly for an internal combustion engine is provided. The piston assembly includes a piston body which extends along an axis and is formed of at least two pieces of material which are joined together at least one friction weld joint which extends continuously through an annular shape around the axis. One of the pieces has an upper surface with a combustion bowl having a rotationally asymmetrical shape around the axis formed therein. Another of the pieces has a dome-shaped receiving surface which is rotationally symmetrical around the axis for slidingly receiving a portion of a connecting rod.
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公开(公告)号：US10018148B2
公开(公告)日：2018-07-10
申请号：US14975451
申请日：2015-12-18
发明人： Michael Weinenger
CPC分类号： F02F3/22 , B23P15/10 , F02F3/00 , F02F3/0015 , F02F3/16 , F02F3/28 , F02F2003/0007 , F02F2003/0061 , F02F2200/04
摘要： A piston and method of construction thereof are provided. The piston includes an upper crown having an upper combustion surface and a lower crown depending therefrom. The lower crown includes a pair of laterally spaced, axially aligned pin bores configured for receipt of a wrist pin. A substantially closed, annular outer cooling gallery is formed between the upper and lower crowns, wherein a bottom surface of the cooling gallery is formed by a floor of the lower crown. An oil inlet and an oil outlet extend through the floor. The oil inlet includes an upstanding toroid-shaped protrusion that extends upwardly from the floor into the cooling gallery, wherein the protrusion is formed as a monolithic extrusion from the material of the lower crown floor.
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公开(公告)号：USD768207S1
公开(公告)日：2016-10-04
申请号：US29496734
申请日：2014-07-16
设计人： Jeff Riffe , Michael Weinenger
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10.发明申请ROBUST, LIGHTWEIGHT, LOW COMPRESSION HEIGHT PISTON AND METHOD OF CONSTRUCTION THEREOF 审中-公开坚固，轻便，低压缩高度活塞及其构造方法公开(公告)号：US20160281635A1
公开(公告)日：2016-09-29
申请号：US15077168
申请日：2016-03-22
CPC分类号： F02F3/26 , B21K1/18 , B22D15/02 , B22D25/02 , B33Y10/00 , B33Y80/00 , F02F3/22 , F02F2003/0007 , F02F2200/06
摘要： A piston for an internal combustion engine and method of construction is provided. The piston has a robust, lightweight monolithic piston body including an upper wall forming a combustion bowl depending radially inwardly from an annular, uppermost combustion surface. An undercrown surface is formed on an underside of the combustion bowl, with at least a portion of the undercrown surface being bounded by diametrically opposite skirt portions, pin bosses and strut portions connecting the skirt portions to the pin bosses. The bounded undercrown surface has an openly exposed surface area, as viewed looking along a central longitudinal axis along which the piston reciprocates, providing an expansive area against which oil being splashed or sprayed can come into direct contact with to enhance cooling the piston while in use. Through channels extending over upper regions of the pin bosses can be provided to further reduce weight and facilitate cooling.
摘要翻译： 提供一种用于内燃机的活塞和结构方法。 活塞具有坚固，轻便的整体活塞体，其包括形成从环形的最上燃烧表面径向向内的燃烧碗的上壁。 在燃烧碗的下侧上形成底下的表面，其中底下表面的至少一部分由直径相对的裙部限定，销凸起和将裙部连接到销凸起的支柱部分。 有边的底下表面具有露出的露出的表面区域，当沿着中心纵向轴线观察时，活塞往复运动，中心纵向轴线提供了膨胀的区域，使得喷溅的油直接接触，以在使用中增强对活塞的冷却 。 可以提供穿过销凸起的上部区域的通道，以进一步减轻重量并促进冷却。
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