公开(公告)号：US20050028364A1

公开(公告)日：2005-02-10

申请号：US10490273

申请日：2002-07-30

Applicant: Wolfgang Issler

Inventor： Wolfgang Issler

IPC: F02F3/00 ,  B21K1/18 ,  B21K25/00 ,  B23P15/10 ,  F02B23/06 ,  F02F3/04 ,  F02F3/12 ,  F16J1/01

CPC classification number: F02B23/0603 ,  B21K1/18 ,  B21K25/00 ,  B23P15/10 ,  F02B23/0696 ,  F02F3/045 ,  F02F3/12 ,  F02F2200/04 ,  F05C2201/0448 ,  F05C2201/0466 ,  Y02T10/125 ,  Y10T29/49249 ,  Y10T29/49252 ,  Y10T29/49256 ,  Y10T29/49263

Abstract: The invention relates to a method for producing a piston or piston head with a combustion relief (6) for an internal combustion engine. The aim of the invention is to easily and economically produce pistons having a reduced tendency to scale at the edge of the combustion relief. To this end, the piston is formed from a cylindrical unmachined part (1) made of steel, whereby the rod section has at least one front face (2). The method is characterized by the following steps: A) forming an annulary encircling recess (3) in the front face (2); B) introducing additional material (4) into the recess (3); connecting the additional material (4) to the steel of the unmachined part (1) in an at least partially non-positive manner; C) forging the unmachined part (1), which is formed according to steps A) and B), into a piston blank (5), and; D) machining the piston blank (5) into a piston (10) that is ready to be installed in an internal combustion engine.

Abstract translation: 本发明涉及一种用于制造具有用于内燃机的燃烧释放装置（6）的活塞或活塞头的方法。 本发明的目的是容易且经济地制造在燃烧浮雕的边缘处具有减小的结垢倾向的活塞。 为此，活塞由钢制的圆筒状的未加工部件（1）形成，杆部具有至少一个正面（2）。 该方法的特征在于以下步骤：A）在前表面（2）中形成一个环形凹槽（3）; B）将额外的材料（4）引入凹槽（3）中; 以至少部分非正的方式将附加材料（4）连接到未加工部件（1）的钢; C）将根据步骤A）和B）形成的未加工部件（1）锻造成活塞坯件（5），并且 D）将活塞坯件（5）加工成准备安装在内燃机中的活塞（10）。

公开(公告)号：US20040194621A1

公开(公告)日：2004-10-07

申请号：US10467881

申请日：2004-05-17

Inventor： Christoph Geissler

IPC: F16J001/04

CPC classification number: B21K1/18 ,  F02F3/003 ,  F02F2200/04 ,  F05C2201/0448

Abstract: The aim of the invention is to produce a multi-piece piston with a sufficient shaft length in a simple manner. To achieve this, the lower part (1) has the following characteristics:nullit consists of two halves (2,3) that have been welded or soldered together,nullthe parting plane (4) between the two halves (2,3) runs in the pressure-counter-pressure directionnullthe two halves (2,3) consist of extruded or forged steel the diameter of the shaft (5) in the direction of the pin is reduced in relation to the diameter of the piston, in the manner a box piston.

Abstract translation: 本发明的目的是以简单的方式生产具有足够的轴长度的多件活塞。 为了实现这一点，下部（1）具有以下特征： - 由两个已经焊接或焊接在一起的两个（2,3）组成， - 两个半部（2,3）之间的分离平面（4） 在压力 - 反压力方向上运行 - 两个半部（2,3）由挤压或锻造的钢构成，轴（5）在销的方向上的直径相对于活塞的直径减小， 方式一箱活塞。

公开(公告)号：US20040055460A1

公开(公告)日：2004-03-25

申请号：US10270254

申请日：2002-10-11

Inventor： Hans-Jurgen Kohnert

IPC: F01B031/00

CPC classification number: F02F3/0084 ,  F02F3/003 ,  F02F3/22 ,  F02F2003/0061 ,  F05C2201/0448

Abstract: A multipart cooled piston for a combustion engine has a piston upper part of steel comprising a combustion bowl and a ring wall with ring belt, and a piston lower part comprising a piston skirt, pin bosses for receiving the piston pin connecting the piston to the connecting rod, and pin boss supports connected to the piston skirt. An inexpensive manufacture and high form stability are achieved in that a cooling channel formed in the piston upper part has holes towards the piston crown spread over its circumference, with the piston material present between such holes forming supporting ribs that each form sections of an all-round ring rib radially to the longitudinal piston axis (K), The piston lower part has an annular and all-round carrier rib with a connection surface connected to the pin boss supports. The piston upper part and the piston lower part are non-detachably connected by means of the connection surfaces of the ring rib and the carrier rib, and the cooling channel is closable by a cooling channel cover.

公开(公告)号：US20040045515A1

公开(公告)日：2004-03-11

申请号：US10451234

申请日：2003-10-08

Inventor： Ulrich Bischofberger ,  Joachim Schulz

IPC: F01P001/04

CPC classification number: F02F3/0092 ,  F02B3/06 ,  F02B23/0603 ,  F02B23/0672 ,  F02B2023/0612 ,  F02B2275/14 ,  F02F3/0069 ,  F02F3/18 ,  F02F2200/04 ,  F05C2201/0448 ,  Y02T10/123 ,  Y02T10/125

Abstract: The aim of the invention is to obtain, with constant or increasing output, a reduction in the compression height of a cooling duct piston (1) for a direct-injection diesel engine. To this end, the piston (1) is composed of at least two parts (23) that are soldered together. One of the parts is a piston base body (2), which is forged of steel and which is provided with a shaft (8), hubs (6) and with an annular part (9). The other part, which is made of steel or of a nickel-based material, contains a combustion recess (4) and at least a portion of the piston head (5). The piston base body (2) and the second part (3), together, form a cooling duct (11) that can be filled with oil.

Abstract translation: 本发明的目的是通过恒定或增加的输出获得直喷式柴油发动机的冷却管活塞（1）的压缩高度的降低。 为此，活塞（1）由焊接在一起的至少两个部分（23）组成。 其中一个部件是活塞基体（2），其被锻造为钢，并且设有轴（8），轮毂（6）和环形部分（9）。 由钢或镍基材料制成的另一部分包含燃烧凹部（4）和活塞头（5）的至少一部分。 活塞基体（2）和第二部分（3）一起形成可以填充油的冷却管道（11）。

公开(公告)号：US06671943B1

公开(公告)日：2004-01-06

申请号：US08993316

申请日：1997-12-18

Applicant: Kazuhiko Mori ,  Kouta Kodama ,  Taisuke Miyamoto ,  Yoshio Fuwa ,  Kouji Saitoh

Inventor： Kazuhiko Mori ,  Kouta Kodama ,  Taisuke Miyamoto ,  Yoshio Fuwa ,  Kouji Saitoh

IPC: B23P1508

CPC classification number: C23C4/12 ,  C23C4/06 ,  F05C2201/021 ,  F05C2201/0448 ,  Y10T29/49265 ,  Y10T29/49982 ,  Y10T29/49986

Abstract: In a method of manufacturing a sliding member, a granular spraying material is sprayed on at least a part of a surface of a body portion made of a structural material in at least partially fusing condition and in the direction which is parallel to or diagonal to a sliding surface. Then, a sprayed layer is formed by depositing the spraying material in the direction which is perpendicular to the sliding surface. The sliding surface is a section of the deposited spraying material which is obtained by grinding or cutting the sprayed layer in depositional direction. A piston comprises a piston body having a broad groove which is broader than a ring groove, a sprayed layer comprising a lower sprayed layer which is formed by spraying the spraying material in the direction which is diagonal to an outer periphery of the broad groove and which contains higher ratio of spraying particles having low fusion temperature, and an upper sprayed layer which is formed by spraying the spraying material in the direction which is perpendicular to the outer periphery of the broad groove and which contains higher ratio of spraying particles having high fusion temperature, and a ring groove which is formed by grinding or cutting the upper sprayed layer in depositional direction. Therefore, excellent wear resistance and the like can be obtained.

Abstract translation: 在制造滑动构件的方法中，将粒状喷涂材料喷射到至少部分熔融状态下的结构材料制成的主体部分的表面的至少一部分上，并且沿平行于或相对于 滑动面。 然后，通过在与滑动面垂直的方向上沉积喷涂材料形成喷涂层。 滑动表面是通过在沉积方向上研磨或切割喷涂层获得的沉积喷涂材料的一部分。 活塞包括具有比环形槽宽的宽槽的活塞体，喷涂层包括通过沿与宽槽的外周对角的方向喷射喷涂材料而形成的下喷涂层， 含有较高的熔融温度低的喷雾粒子的比例，以及通过喷射材料沿与宽槽的外周垂直的方向形成的上部喷涂层，其含有较高熔融温度的喷雾粒子的比例较高 以及通过在沉积方向上研磨或切割上部喷涂层而形成的环形槽。 因此，可以获得优异的耐磨性等。

公开(公告)号：US06651549B2

公开(公告)日：2003-11-25

申请号：US10217854

申请日：2002-08-12

Applicant: Xilou Zhu ,  Alan S. Brown ,  Walter Joseph Griffiths ,  Miguel N. Azevedo

Inventor： Xilou Zhu ,  Alan S. Brown ,  Walter Joseph Griffiths ,  Miguel N. Azevedo

IPC: F01B3108

CPC classification number: F02F3/003 ,  F02F3/22 ,  F02F2200/04 ,  F05C2201/021 ,  F05C2201/0448

Abstract: A heavy duty diesel piston includes upper and lower portions joined across a friction weld and internally contoured to provide a dual gallery structure including an outer annular gallery and a central gallery joined by passages for communicating cooling oil therebetween. The dual-gallery structure allows oil to enter from the outer gallery, which is formed by the circumferential annular recess in the crown and crown bottom, into the central gallery to cool the piston and particularly the central crown region exposed to hot combustion gases. The friction weld provides high structural integrity and minimizes the number of manufacturing steps needed to attach the crown to the crown bottom.

公开(公告)号：US20030051714A1

公开(公告)日：2003-03-20

申请号：US09954842

申请日：2001-09-18

Applicant: Federal-Mogul World Wide, Inc.

Inventor： Tom Bedwell ,  Carmo Ribeiro ,  Miguel N.D. De Azevedo

IPC: F02B051/02

CPC classification number: F02F3/10 ,  F05C2201/0448 ,  F05C2201/0466 ,  F05C2253/12

Abstract: A corrosion resistant piston for use in an exhaust gas recirculation diesel engine. The piston includes a crown portion having ring grooves formed around a periphery of the crown portion. The ring grooves are separated by ring lands. The piston also includes a piston rod connecting portion that extends from the crown portion. The piston is made of steel and includes an electroless coating of nickel having a maximum thickness of 8 micrometers.

公开(公告)号：US06334385B1

公开(公告)日：2002-01-01

申请号：US09552267

申请日：2000-04-19

Applicant: Mark Conrad Wilksch ,  Philip Clive Franklin

Inventor： Mark Conrad Wilksch ,  Philip Clive Franklin

IPC: F01B3110

CPC classification number: F02F3/22 ,  F05C2201/021 ,  F05C2201/0448 ,  F16J1/22

Abstract: In a piston and connecting rod assembly, for an internal combustion engine with a spherical connecting rod small-end entrained in a hollow piston body by a retention ring, a chamber serving as a localized reservoir for lubricant and/or coolant (oil) is incorporated in the underside of a piston crown along with passages or grooves communicating between the reservoir and a coolant gallery in the piston crown for continuous interchange of lubricant (such as oil) between gallery and reservoir and then lubricant return, over small end (upper and lower) part-spherical bearing surfaces to the retention ring and through lubricant passages in the ring to an engine crankcase, thereby affording an overall circulatory, lubricant feed and drainage path.

Abstract translation: 在活塞和连杆组件中，对于具有通过保持环夹带在中空活塞体中的具有小端的球形连杆的内燃机，包括用作润滑剂和/或冷却剂（油）的局部容器的室 在活塞顶盖的下侧以及在储存器和活塞冠之间的冷却剂通道连通的通道或凹槽，用于在储存器和储存器之间连续交换润滑剂（例如油），然后润滑剂在小端（上部和下部）上返回 ）部分球形轴承表面连接到保持环并且通过环中的润滑剂通道到发动机曲轴箱，从而提供整体循环，润滑剂进给和排出路径。

公开(公告)号：US06286414B1

公开(公告)日：2001-09-11

申请号：US09375322

申请日：1999-08-16

Applicant: Brian K. Kruse

Inventor： Brian K. Kruse

IPC: F01B3108

CPC classification number: F02F3/22 ,  F02F3/003 ,  F02F2003/0061 ,  F02F2200/04 ,  F05C2201/0448

Abstract: A compact one piece piston for use in an internal combustion engine has a compression height (“CH”) of between 55 percent and 70 percent the piston diameter (“D”) and a closed piston cooling gallery defined by a piston ring belt welded at spaced locations to a piston body and to a flange portion of the piston body. The flange portion supports a second end of the piston ring belt and resists deflection of the piston ring belt. The closed piston cooling gallery is configured to promote heat transfer and piston cooling by facilitating shaking of a cooling fluid located within the closed piston cooling gallery during reciprocal piston movement. A piston skirt extending from the flange provides additional strength and rigidity.

Abstract translation: 用于内燃机的紧凑型单件活塞具有活塞直径（“D”）55％至70％的压缩高度（“CH”）和由焊接在 与活塞体和活塞体的凸缘部分间隔开。 凸缘部分支撑活塞环带的第二端并抵抗活塞环带的偏转。 闭合活塞冷却库被构造成通过在往复活塞运动期间促进位于封闭活塞冷却库内的冷却流体的振动来促进传热和活塞冷却。 从凸缘延伸的活塞裙提供额外的强度和刚度。

公开(公告)号：US06283070B1

公开(公告)日：2001-09-04

申请号：US09360061

申请日：1999-07-23

Applicant: Carl Robert Deckard ,  Dimitrios Dardalis

Inventor： Carl Robert Deckard ,  Dimitrios Dardalis

IPC: F02B5700

CPC classification number: F02B75/34 ,  F01B3/0079 ,  F01B3/04 ,  F01B15/007 ,  F02B63/02 ,  F02B75/04 ,  F02B75/16 ,  F02B75/26 ,  F02B2075/025 ,  F02F3/28 ,  F05C2201/0448

Abstract: An improved sealing means for internal combustion engines comprising a combination of a metal primary sealing ring positioned substantially within a groove on the piston, and a compliant secondary sealing ring positioned in the groove behind the primary compression ring so that the compressed combustion gases force the compliant secondary sealing ring to form a seal between the groove and the primary sealing ring. In the preferred embodiment, the gapped ring is non-planar in order to provide effective sealing in a ported fixed-piston, rotating and translating cylinder engine such as the Deckard engine. Alternate embodiments include gapless rings with only a primary compression ring, and gapless rings with a compliant secondary sealing ring. An alternate embodiment is a single piece metal-capped compliant secondary sealing ring.

Abstract translation: 一种用于内燃机的改进的密封装置，包括基本上位于活塞上的凹槽内的金属主密封圈和位于主压缩环后面的凹槽中的柔性副密封圈的组合，使得压缩的燃烧气体迫使柔性 二次密封环，以在凹槽和主密封环之间形成密封。 在优选实施例中，间隙环是非平面的，以便在诸如Deckard发动机的移动的固定活塞，旋转和平移缸发动机中提供有效的密封。 替代实施例包括仅具有主压缩环的无间隙环，以及具有柔性辅助密封环的无间隙环。 一个替代实施例是单件金属盖的顺应性次级密封环。