公开(公告)号：US20150176523A1

公开(公告)日：2015-06-25

申请号：US14415194

申请日：2013-07-18

Applicant: MAHLE International GmbH

Inventor： Sascha-Oliver Boczek ,  Ulrich Bischofberger ,  Rainer Scharp

IPC: F02F3/00 ,  B23P15/10

CPC classification number: F02F3/0092 ,  B23P15/10 ,  F02F3/003 ,  F02F3/18 ,  F02F2003/0061 ,  F05C2201/0448 ,  Y10T29/49252

Abstract: The invention relates to a method for producing a piston (1) for an internal combustion engine, characterised by the following method steps: producing an upper piston part (2) and a lower piston part (3) having one or more recesses (4, 4′) for forming a closed cavity (5); introducing a heat transfer medium (6), in particular one or more alkali metals, that is solid or paste-like at ambient temperature and liquid at the intended operating temperature of the piston, into the recesses (4, 4′) of the lower piston part (3) and/or of the upper piston part (2), wherein the heat transfer medium (6) is provided in order, during the operative state of the piston (1), to effect heat transport within the piston (1) by convection; closing the recesses to form the closed cavity (5) which encloses the heat transfer medium (6); and connecting the upper piston part (2) to the lower piston part (3). This enables the piston (1) to be produced in a simplified manner.

Abstract translation: 本发明涉及一种用于制造内燃机的活塞（1）的方法，其特征在于以下方法步骤：制造具有一个或多个凹部（4，4）的上活塞部分（2）和下活塞部分（3） 4'），用于形成闭合腔（5）; 将环境温度为固体或糊状的活性物质的传热介质（6）特别是一种或多种碱金属引入到活塞的预期操作温度下的下部（4,4'）中， 活塞部分（3）和/或上活塞部分（2），其中传热介质（6）在活塞（1）的操作状态期间依次设置，以在活塞（1）内实现热传递 ）通过对流; 闭合凹部以形成封闭传热介质（6）的封闭空腔（5）。 并将上活塞部件（2）连接到下活塞部件（3）。 这使得能够以简化的方式制造活塞（1）。

公开(公告)号：US09051896B2

公开(公告)日：2015-06-09

申请号：US13390717

申请日：2010-09-03

Applicant: Tilmann Haug

Inventor： Tilmann Haug

IPC: F02F3/00 ,  C22C38/02 ,  C22C38/40 ,  C22C38/58 ,  F02F3/02

CPC classification number: F02F3/0084 ,  C22C38/02 ,  C22C38/40 ,  C22C38/58 ,  F02F3/00 ,  F02F3/0092 ,  F02F3/02 ,  F05C2201/021 ,  F05C2201/0448 ,  F05C2251/042

Abstract: A steel piston with a piston upper part (12) with combustion chamber recess (11) and ring wall (5), and with a piston lower part (13) with piston body or piston skirt and with connecting rod bearing (8) for internal combustion engines with cylinder crankcases made of lightweight metal alloys, with at least the piston lower part consisting of a steel alloy which has a coefficient of thermal expansion in the range from 13 to 20×10−6 1/K.

Abstract translation: 具有活塞上部（12）的钢活塞，其具有燃烧室凹部（11）和环壁（5），并具有活塞下部（13），其具有活塞主体或活塞裙部以及用于内部的连杆轴承（8） 具有由轻质金属合金制成的气缸曲轴箱的内燃机，至少具有由13〜20×10 -6 / K的热膨胀系数的钢合金构成的活塞下部。

公开(公告)号：US20150040853A1

公开(公告)日：2015-02-12

申请号：US14377311

申请日：2013-02-08

Applicant: MAHLE International GmbH

Inventor： Wolfgang Issler ,  Daniel Lopez ,  Jose Valentim Lima Sarabanda

IPC: F16J9/12

CPC classification number: F16J9/12 ,  F02B3/06 ,  F02F3/00 ,  F02F3/22 ,  F05C2201/021 ,  F05C2201/0448 ,  F16J9/14

Abstract: The invention relates to a piston ring (10, 110, 210, 310, 410, 510, 610) for pistons of internal combustion engines, having a ring running surface (14), a ring back (11), an upper ring flank (12), a lower ring flank (13), and two ring joint ends spaced apart by a gap (15). According to the invention, at least one opening (17, 121, 217, 223, 325, 407) is provided in the ring running surface (14), which opening forms a fluid connection between the ring running surface (14) and the ring back (11) or a ring flank (12, 13).

Abstract translation: 本发明涉及一种用于内燃机活塞的活塞环（10,110,210,310,410,510,610），其具有环形运行表面（14），环形背面（11），上环形侧面 12），下环面（13）和由间隙（15）间隔开的两个环形接头端部。 根据本发明，至少一个开口（17,121,217,223,325,407）设置在环行进表面（14）中，该开口在环行进表面（14）和环之间形成流体连接 后部（11）或环形侧面（12,13）。

公开(公告)号：US08925511B2

公开(公告)日：2015-01-06

申请号：US13127540

申请日：2009-09-15

Applicant: Franz-Peter Allig ,  Wolfgang Köhler ,  Matthias Laqua

Inventor： Franz-Peter Allig ,  Wolfgang Köhler ,  Matthias Laqua

IPC: F02F3/22

CPC classification number: F02F3/22 ,  F02F2200/04 ,  F05C2201/0448

Abstract: A cooling channel piston has a radially circumferential cooling channel located behind a ring field. The cooling channel piston is forged from a steel material and the cooling channel is worked in by machining between an upper part below the ring field and a lower part above the piston bosses and the piston skirts. The cooling channel extends behind the ring field in the direction of an upper face of the upper part, it being provided that the cooling channel piston has above its piston bosses and piston skirts an outwardly oriented support region. A closing element, which closes the cooling channel after the production thereof, is fastened between the lower edge of the ring field and the support region.

Abstract translation: 冷却通道活塞具有位于环形场后面的径向周向冷却通道。 冷却通道活塞由钢材锻造，冷却通道通过在环形场下方的上部与活塞凸台和活塞裙之间的下部之间的机械加工而加工。 冷却通道在上部的上表面的方向上延伸到环形区域之后，其中冷却通道活塞在其活塞凸起上方并且活塞裙部向外定向的支撑区域。 闭合冷却通道的闭合元件在其制造之后被紧固在环形场的下边缘和支撑区域之间。

公开(公告)号：US20140255237A1

公开(公告)日：2014-09-11

申请号：US14200230

申请日：2014-03-07

Applicant: Jaebong PARK

Inventor： Jaebong PARK

IPC: F04C18/10

CPC classification number: F04C18/10 ,  C22C37/04 ,  F01C21/0809 ,  F04C2/3446 ,  F04C29/12 ,  F04C2230/21 ,  F04C2240/20 ,  F05C2201/0439 ,  F05C2201/0442 ,  F05C2201/0448 ,  F05C2203/0808

Abstract: A vane pump is provided that may include a rotor having a plurality of slots formed on an outer circumferential surface thereof; a vane slidably inserted into each of the plurality of slots; and a cam ring configured to receive the rotor therein and having a inner circumferential surface in contact with an end portion of the vane. The rotor may be formed of nodular graphite cast iron, the vane may be formed of high speed tool steel, and the cam ring may be formed of alloy cast iron.

Abstract translation: 提供一种叶片泵，其可包括转子，该转子具有形成在其外圆周表面上的多个槽; 可滑动地插入到所述多个槽中的每一个中的叶片; 以及凸轮环，其构造成在其中容纳所述转子并且具有与所述叶片的端部部分接触的内周面。 转子可由球墨铸铁形成，叶片可由高速工具钢形成，凸轮环可由合金铸铁形成。

公开(公告)号：US08820288B2

公开(公告)日：2014-09-02

申请号：US13818173

申请日：2011-08-30

Applicant: Timotheus Kaiser ,  Hermann Pfeifer ,  Wolfgang Rehm ,  Karl Weisskopf

Inventor： Timotheus Kaiser ,  Hermann Pfeifer ,  Wolfgang Rehm ,  Karl Weisskopf

IPC: C22C38/04 ,  C22C38/06

CPC classification number: F02F3/00 ,  B21K1/18 ,  C22C38/001 ,  C22C38/02 ,  C22C38/04 ,  C22C38/40 ,  C22C38/58 ,  F02F3/0084 ,  F05C2201/0448 ,  F05C2251/042 ,  F16J1/01

Abstract: A semifinished product blank, suitable for the production of a steel piston (1) for internal combustion engines having cylinder crankcases made of light metal alloys. Such a steel piston (1) has at least one upper piston part (4) which has a combustion recess (2) and an annular wall (3), and a lower piston part (4′) which has a piston skirt (5) and a connecting rod bearing (6). The semifinished product blank is made of an austenitic steel, that is stabilized with Ni, Mn and N and that has a thermal expansion coefficient in a range of 16 to 21×10−6 K−1. Also disclosed is a steel piston, which at least has a piston skirt (5) made of an austenitic steel that is stabilzed with Ni, Mn, N. The piston skirt (5) has a thermal expansion coefficient in a range of 16 to 21×10−6 K−1.

Abstract translation: 一种半成品，适用于生产具有由轻金属合金制成的气缸曲轴箱的内燃机的钢活塞（1）。 这种钢活塞（1）具有至少一个具有燃烧凹部（2）和环形壁（3）的上活塞部分（4）和具有活塞裙（5）的下活塞部分（4'）， 和连杆轴承（6）。 半成品坯料由奥氏体钢制成，其用Ni，Mn和N稳定，热膨胀系数在16〜21×10 -6 K -1的范围内。 还公开了一种钢活塞，其至少具有由奥氏体钢制成的活塞裙部（5），其由Ni，Mn，N稳定。活塞裙部（5）的热膨胀系数在16至21的范围内 ×10-6 K-1。

公开(公告)号：US20140076264A1

公开(公告)日：2014-03-20

申请号：US14030530

申请日：2013-09-18

Applicant: Federal-Mogul Corporation

Inventor： Eduardo Matsuo ,  Airton Martins

IPC: F02F3/00

CPC classification number: B23P15/10 ,  F02F3/00 ,  F02F3/0015 ,  F02F3/0084 ,  F02F3/0092 ,  F02F2003/0007 ,  F02F2200/00 ,  F05C2201/0448 ,  Y10T29/49249

Abstract: A piston for an internal combustion engine is provided. The piston includes a piston body which is made of steel. The piston body has a crown portion with an upper combustion surface, a pair of skirts which depend from the crown surface, a pair of pin bosses for receiving a wrist pin and a plurality of pin boss bridges which extend from the pin bosses to the skirts. Each of the pin boss bridges extends axially to a lower end which is opposite of the crown portion and has a rib with an increased thickness at its lower end. At least one of the pin boss bridges has a generally flat counter-bore surface for providing a reference location for machining of the piston body.

Abstract translation: 提供一种用于内燃机的活塞。 活塞包括由钢制成的活塞体。 活塞体具有顶部部分，其具有上部燃烧表面，一对从冠部表面依赖的裙部，一对用于接收腕针的销凸起部以及从销凸起延伸到裙部的多个销凸台桥 。 每个销凸台桥轴向延伸到与冠部相对的下端，并且在其下端具有增加厚度的肋。 销凸台桥中的至少一个具有大致平坦的相对孔表面，用于提供用于加工活塞体的参考位置。

公开(公告)号：US08672018B2

公开(公告)日：2014-03-18

申请号：US13589216

申请日：2012-08-20

Applicant: Devin R. Hess ,  Gerald F. Johnson

Inventor： Devin R. Hess ,  Gerald F. Johnson

IPC: B22D19/00 ,  B22D19/16 ,  F02B75/08

CPC classification number: F02F1/24 ,  B22D19/0009 ,  B32B3/266 ,  B32B7/02 ,  B32B15/01 ,  B32B2307/302 ,  B32B2605/00 ,  F02F2001/249 ,  F05C2201/021 ,  F05C2201/0448 ,  F05C2201/903 ,  Y10T428/12361

Abstract: A cylinder head is formed by positioning a clad preform including a first and second layer in a casting die cavity with the second layer in communication with the die cavity and the first layer facing outwardly to define a combustion surface. Molten material provided to the die cavity is solidified to form a cast portion metallurgically bonded to the second layer. An aperture of the preform forms a port in fluid communication with a passage of the cast portion. A plurality of dome-shaped preforms may define the combustion chambers of a cylinder head formed by the method. The preform may define a cylinder head face. The first layer may be a steel-based layer, and the second layer and cast portion may be aluminum-based, such that the first layer and combustion surface has higher thermal fatigue strength relative to the cast portion.

Abstract translation: 气缸盖通过将包括第一和第二层的包层预型体定位在铸模腔中而形成，第二层与模腔连通，第一层面向外以限定燃烧表面。 提供到模腔的熔融材料被固化以形成冶金结合到第二层的铸造部分。 预型件的孔形成与浇铸部分的通道流体连通的端口。 多个圆顶状预制件可以限定由该方法形成的气缸盖的燃烧室。 预制件可以限定气缸盖面。 第一层可以是钢基层，第二层和铸造部分可以是铝基的，使得第一层和燃烧表面相对于铸造部分具有较高的热疲劳强度。

公开(公告)号：US20130199363A1

公开(公告)日：2013-08-08

申请号：US13703948

申请日：2011-06-22

Applicant: Clemens Krebs

Inventor： Clemens Krebs

IPC: F01B3/00

CPC classification number: F01B3/0044 ,  F04B1/2014 ,  F04B1/2028 ,  F04B1/2064 ,  F04B23/06 ,  F04B53/16 ,  F05C2201/0439 ,  F05C2201/0442 ,  F05C2201/0448 ,  F05C2201/0451

Abstract: An axial piston machine includes a housing having a casting which is optimized with respect to casting. An insert ring which is optimized with respect to a pressure load is formed in the bottom of the housing. The insert ring is configured to be used with such an axial piston machine.

Abstract translation: 轴向活塞机包括具有相对于铸件优化的铸件的壳体。 相对于压力负荷优化的插入环形成在壳体的底部。 插入环构造成与这种轴向活塞机一起使用。

公开(公告)号：US20090288632A1

公开(公告)日：2009-11-26

申请号：US12308238

申请日：2007-06-08

Applicant: Rainer Scharp

Inventor： Rainer Scharp

IPC: F02F3/00 ,  B23P15/10

CPC classification number: F02F3/22 ,  F02F3/0084 ,  F02F2003/0061 ,  F02F2200/06 ,  F05C2201/0448 ,  Y10T29/49249 ,  Y10T29/49252

Abstract: Proposed is a piston (1) for an internal combustion engine having a closed annular duct (4) which is arranged close to the piston head (5) and radially at the outside, which annular duct (4) has, at the piston head side, an annular opening (21) which, in section, has the shape of a trapezium with limbs which taper conically in the direction away from the piston head, and which is closed off by an annular closure element (3) which, in section, has the same trapezium shape as the opening (21), with the closure element (3) being fastened in the opening (21) by means of friction welding.

Abstract translation: 提出了一种用于内燃机的活塞（1），其具有封闭的环形管道（4），该闭合的环形管道（4）在活塞头侧靠近活塞头（5）并且径向地设置在环形管道（4）的外侧 ，环形开口（21），其在截面中具有梯形形状，其具有在远离活塞头的方向上锥形成锥形的四肢，并且由环形封闭元件（3）封闭，所述环形封闭元件（3） 具有与开口（21）相同的梯形形状，封闭元件（3）通过摩擦焊接紧固在开口（21）中。