公开(公告)号：US20160177865A1

公开(公告)日：2016-06-23

申请号：US14975451

申请日：2015-12-18

Applicant: Federal-Mogul Corporation

Inventor： Michael Weinenger

IPC: F02F3/22 ,  F02F3/00

CPC classification number: F02F3/22 ,  B23P15/10 ,  F02F3/00 ,  F02F3/0015 ,  F02F3/16 ,  F02F3/28 ,  F02F2003/0007 ,  F02F2003/0061 ,  F02F2200/04

Abstract: 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.

Abstract translation: 提供一种活塞及其构造方法。 活塞包括具有上燃烧表面和从其离开的下冠的上冠部。 下冠包括一对侧向间隔开的轴向对准的销孔，其构造成用于容纳腕针。 在上冠和下冠之间形成一个基本封闭的环形外冷却廊，其中冷却廊的底面由下冠的底部形成。 进油口和出油口延伸穿过地板。 油入口包括直立的环形突起，其从地板向上延伸到冷却槽中，其中突起形成为从下冠层的材料的整体挤压。

公开(公告)号：US20160115899A1

公开(公告)日：2016-04-28

申请号：US14988885

申请日：2016-01-06

Applicant: Federal-Mogul Corporation

Inventor： Jeff Riffe ,  Michael Weinenger

IPC: F02F3/00 ,  F02F3/22

Abstract: A galleryless steel piston for an internal combustion engine is provided. The piston has a monolithic piston body including an upper wall forming an upper combustion surface with first and second portions. The first portion extends annularly along an outer periphery of the upper wall and the second portion defines a combustion bowl. The piston further includes undercrown surface located directly opposite the combustion bowl with an exposed 2-dimensional surface area allowing for contact of cooling oil. The exposed 2-dimensional surface area ranges from 25 to 60 percent of a cross-sectional area defined by a maximum outer diameter of the piston body. To further enhance cooling, a portion of the undercrown surface is concave or convex, such that oil is channeled during reciprocation of the piston from one side to the opposite side of the piston.

Abstract translation: 提供一种用于内燃机的无水壶钢活塞。 活塞具有整体活塞体，该主体包括形成具有第一和第二部分的上部燃烧表面的上壁。 第一部分沿着上壁的外周呈环状延伸，第二部分限定燃烧碗。 活塞还包括位于燃烧碗的正对面的底下表面，具有允许冷却油接触的暴露的二维表面积。 暴露的二维表面积为由活塞体的最大外径限定的横截面积的25至60％。 为了进一步增强冷却，底部表面的一部分是凹形或凸形的，使得在活塞从活塞的一侧往活塞的相反侧往复运动时引导油。

公开(公告)号：US09303584B2

公开(公告)日：2016-04-05

申请号：US14487498

申请日：2014-09-16

Applicant: Federal-Mogul Corporation

Inventor： Michael Weinenger

IPC: F02F3/00 ,  F16J1/22 ,  F02F3/20 ,  F16J1/09

CPC classification number: F02F3/00 ,  F02F3/20 ,  F02F2003/0007 ,  F16J1/09 ,  F16J1/22

Abstract: A piston assembly having a piston member and a connecting rod. The piston member has a crown portion and a lower portion bonded together with a cooling gallery formed between them. The connecting rod has a ball end which is positioned in a socket in the piston member. In one embodiment, the ball end can have two flat surfaces and be held in position by C-clips. In another embodiment, the ball end is cylindrically shaped and the socket has a corresponding shape.

Abstract translation: 具有活塞构件和连杆的活塞组件。 活塞构件具有冠部和下部，其与形成在它们之间的冷却槽结合在一起。 连杆具有位于活塞部件中的插座中的球端。 在一个实施例中，球端可以具有两个平坦表面并且通过C形夹保持就位。 在另一个实施例中，球端是圆柱形的并且插座具有相应的形状。

公开(公告)号：US20150315995A1

公开(公告)日：2015-11-05

申请号：US14700654

申请日：2015-04-30

Applicant: FEDERAL-MOGUL CORPORATION

Inventor： Michael Weinenger

IPC: F02F3/18 ,  B23P15/10 ,  F02F3/00

CPC classification number: F02F3/18 ,  B23P15/10 ,  F02F3/0092 ,  F05C2201/021 ,  F05C2201/0448 ,  Y10T29/4925 ,  Y10T29/49254

Abstract: A steel piston for an internal combustion including a cooling gallery containing a solid coolant, such as an aluminum-based material, is provided. The solid coolant has a thermal conductivity which is greater than the thermal conductivity of the steel material and fills at least 15 volume percent (vol. %) of the cooling gallery. The solid coolant provides for exceptional cooling along a crown of the piston, reduces corrosion and erosion along the crown, and avoids the problem of oil coking.

Abstract translation: 提供了一种用于内燃的钢活塞，其包括包含固体冷却剂的冷却库，例如铝基材料。 固体冷却剂的导热率大于钢材的热导率，并填充至少15体积百分比（体积百分比）的冷却库。 固体冷却剂可以沿着活塞的顶部提供特殊的冷却，减少沿表冠的腐蚀和侵蚀，并避免油焦化问题。

公开(公告)号：US09127616B2

公开(公告)日：2015-09-08

申请号：US14049622

申请日：2013-10-09

Applicant: Federal-Mogul Corporation

Inventor： Michael Weinenger ,  Florin Muscas

IPC: F02F3/00

CPC classification number: F02F3/003 ,  F01B7/08 ,  F02F3/0015 ,  F02F3/0076 ,  F02F2003/0007 ,  Y10T156/10

Abstract: An improved piston for an opposed piston internal combustion engine is provided. The piston includes a piston body that extends along an axis from a crown portion to a skirt portion with a full piston skirt and to a pin boss portion. The piston body includes a plurality of ring grooves in the crown portion and at least one ring groove in the skirt portion. A wrist pin which has a length that is longer than a maximum diameter of the piston body is joined with the piston body at the pin boss portion and extends past the pin boss portion for receiving a pair of connecting rods on opposite sides of the piston body. The piston body is a monobloc piston body which is made of one integral piece or of multiple pieces that are welded or adhered together.

Abstract translation: 提供了一种用于相对的活塞内燃机的改进的活塞。 该活塞包括一个活塞体，该活塞主体沿着一个轴线从冠部延伸到具有全活塞裙部的裙部和一个销凸台部分。 活塞主体包括冠部中的多个环形槽和裙部中的至少一个环形槽。 具有比活塞主体的最大直径长的长度的腕销在活塞凸台部分处与活塞体接合并且延伸穿过销凸台部分，用于在活塞体的相对侧上接收一对连杆 。 活塞体是一体的活塞体，由一体的一体或多个焊接或粘合在一起的多个部件制成。

公开(公告)号：US20140202404A1

公开(公告)日：2014-07-24

申请号：US14159729

申请日：2014-01-21

Applicant: Federal-Mogul Corporation

Inventor： Michael Weinenger ,  Florin Muscas

IPC: F02F3/28 ,  B23K20/12

CPC classification number: F02F3/28 ,  B23K20/129 ,  F02F3/22 ,  F02F3/26 ,  F02F2003/0061 ,  F16J1/22 ,  Y10T29/49252

Abstract: 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.

Abstract translation: 提供了一种用于内燃机的单体活塞组件。 活塞组件包括沿着轴线延伸并由至少两个材料形成的活塞体，所述至少两个材料被连接在一起，所述至少一个摩擦焊接接头围绕轴线连续地延伸穿过环形。 其中一块具有上表面，燃烧碗具有围绕其形成的轴线的旋转不对称形状。 另一个部件具有围绕轴线旋转对称的圆顶形接收表面，用于滑动地接收连接杆的一部分。

公开(公告)号：US20140096735A1

公开(公告)日：2014-04-10

申请号：US14049622

申请日：2013-10-09

Applicant: Federal-Mogul Corporation

Inventor： Michael Weinenger ,  Florin Muscas

IPC: F02F3/00

CPC classification number: F02F3/003 ,  F01B7/08 ,  F02F3/0015 ,  F02F3/0076 ,  F02F2003/0007 ,  Y10T156/10

Abstract: An improved piston for an opposed piston internal combustion engine is provided. The piston includes a piston body that extends along an axis from a crown portion to a skirt portion with a full piston skirt and to a pin boss portion. The piston body includes a plurality of ring grooves in the crown portion and at least one ring groove in the skirt portion. A wrist pin which has a length that is longer than a maximum diameter of the piston body is joined with the piston body at the pin boss portion and extends past the pin boss portion for receiving a pair of connecting rods on opposite sides of the piston body. The piston body is a monobloc piston body which is made of one integral piece or of multiple pieces that are welded or adhered together.

Abstract translation: 提供了一种用于相对的活塞内燃机的改进的活塞。 该活塞包括一个活塞体，该活塞主体沿着一个轴线从冠部延伸到具有全活塞裙部的裙部和一个销凸台部分。 活塞主体包括冠部中的多个环形槽和裙部中的至少一个环形槽。 具有比活塞主体的最大直径长的长度的腕销在活塞凸台部分处与活塞体接合并且延伸穿过销凸台部分，用于在活塞体的相对侧上接收一对连杆 。 活塞体是一体的活塞体，由一体的一体或多个焊接或粘合在一起的多个部件制成。