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公开(公告)号：US5975040A
公开(公告)日：1999-11-02
申请号：US947813
申请日：1997-10-09
Applicant: Aulis Silvonen , Trygve Ahlroth , Pasi Halla-aho
Inventor： Aulis Silvonen , Trygve Ahlroth , Pasi Halla-aho
CPC classification number: F02F3/0023 , F02F3/22 , F02B23/0696 , F02B3/06 , F02F2200/04 , F05C2201/021 , F05C2201/0448 , F05C2251/042
Abstract: Piston unit for an internal combustion engine, especially for a large diesel engine, comprising at least three main parts located in successive order in the direction of the longitudinal axis of the piston and to be connected to each other. The piston unit includes a uniform upper part (3), which defines, when installed within a cylinder of the engine, a combustion chamber from the side of the piston and which is fixed inside of the piston at its central region to a middle part (2) of the piston unit preferably by means of a screw (4) or the like. At least the main part of, preferably all of the piston ring grooves (7) are arranged on a middle part (2). In addition the upper part (1) is selected to be of a material with better heat resistance than that of the middle part (2) and of a lower part (1).
Abstract translation: 用于内燃机的活塞单元，特别是用于大型柴油发动机，包括至少三个主要部件，其沿活塞的纵向轴线方向依次连续并且彼此连接。 活塞单元包括均匀的上部部分（3），其在安装在发动机的气缸内的情况下限定了来自活塞侧面的燃烧室，并且在其中心区域将其固定在活塞的内部到中间部分（ 2）活塞单元优选地通过螺钉（4）等。 至少主要部分，优选地，所有活塞环槽（7）都布置在中间部分（2）上。 此外，上部（1）被选择为具有比中部（2）和下部（1）的材料更好的耐热性的材料。
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392.发明授权
公开(公告)号：US5934174A
公开(公告)日：1999-08-10
申请号：US165205
申请日：1998-10-02
Applicant: Norbert Abraham, Sr. , Carmo Ribeiro
Inventor： Norbert Abraham, Sr. , Carmo Ribeiro
CPC classification number: F02F3/003 , B23P15/10 , F02F3/00 , F02F2003/0061 , F02F2200/04 , F05C2201/0448
Abstract: A piston head is provided which is lightweight and inexpensive yet capable of handling high mechanical and thermal loading during operation. The piston head generally includes a top head portion and a bottom head portion formed separately and connected by a friction weld. Importantly, the top head portion includes a first cooling gallery formed between the depending outer wall and a first inner depending wall and a second cooling gallery formed between the first inner depending wall and a second inner depending wall. The bottom head portion also includes corresponding first and second upper extending walls connected to the first and second inner depending walls to form the lower portion of each cooling gallery. The inner depending and upper extending walls are formed so that the ratio of the sum of the transverse thickness of the adjacent walls to the outer diameter of the piston head is approximately from 2% to 8%, and preferably 4% to 6%. This ratio optimal reduces piston weight while maintaining sufficient strength to endure mechanical loading during operation and providing improved thermal cooling capacity.
Abstract translation: 提供了一种重量轻且便宜但能够在操作期间处理高机械和热负荷的活塞头。 活塞头通常包括顶部头部和底部头部，该头部分别单独形成，并通过摩擦焊接连接。 重要的是，顶部头部包括形成在悬垂外壁和第一内悬垂壁之间的第一冷却槽和形成在第一内垂直壁和第二内悬壁之间的第二冷却槽。 底部头部还包括连接到第一和第二内部悬垂壁的对应的第一和第二上部延伸壁，以形成每个冷却廊的下部。 内侧悬垂壁和上延伸壁形成为使得相邻壁的横向厚度与活塞头的外径之和的比率约为2％至8％，优选为4％至6％。 该比例优化减少活塞重量，同时保持足够的强度以在运行期间承受机械载荷并提供改进的热冷却能力。
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公开(公告)号：US5839351A
公开(公告)日：1998-11-24
申请号：US776584
申请日：1997-02-03
Applicant: Teruo Nakada
Inventor： Teruo Nakada
CPC classification number: F02F3/00 , F02F3/22 , F16J1/08 , F05C2201/0448 , F05C2225/02 , F05C2251/042
Abstract: In this piston, oil grooves 5 are provided in the selected parts of a surface of a skirt portion 3 which are liable to encounter the breakage of an oil film, and which are on the thrust side and anti-thrust side, and not in the parts of the surface of the skirt portion to which a load is imparted. The oil grooves 5 are formed in the positions higher than a piston pin 22 and lower than piston ring grooves 12, and cooling cavity 45 and oil grooves 5 communicate with each other by oil passages 47, the cooling cavity 45 and a lower open end 48 of a piston body 1 communicating with each other by an oil passage 46. Accordingly, even when the piston is inclined toward the anti-thrust direction, an oil is supplied to the clearances between outer members 7 and skirt portion 3, and the breakage of an oil film does not occur. Even when the piston body is inclined toward the thrust side and going to collide with the outer members 7, a satisfactory oil film is formed securely in the portion of the clearance which is around the colliding portion of the piston body, and the oil in the clearance is forced out. Thus, the colliding force of the piston against a cylinder liner is lessened by the oil, so that the slapping sounds of the piston can be greatly reduced.
Abstract translation: PCT No.PCT / JP96 / 01278 Sec。 371日期1997年2月3日 102（e）日期1997年2月3日PCT提交1996年5月15日PCT公布。 出版物WO97 / 02418 日期1997年1月23日在该活塞中，油槽5设置在裙部3的易于遇到油膜破损的表面的选定部分中，并且在推力侧和反推力侧 ，而不是在赋予负载的裙部的表面的部分中。 油槽5形成在比活塞销22高且低于活塞环槽12的位置，并且冷却腔45和油槽5通过油路47，冷却腔45和下开口48连通 通过油路46相互连通的活塞体1.因此，即使当活塞向防推力方向倾斜时，也向外部构件7和裙部3之间的间隙供给油， 不会发生油膜。 即使当活塞体朝向推力侧倾斜并与外部构件7碰撞时，在位于活塞体的碰撞部分周围的间隙的部分中牢固地形成令人满意的油膜， 清关被迫离开。 因此，活塞抵靠气缸套的碰撞力被油减少，从而可以大大减少活塞的打鸣声。
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公开(公告)号：US5836280A
公开(公告)日：1998-11-17
申请号：US562159
申请日：1995-11-22
Applicant: Kazuo Miyazawa
Inventor： Kazuo Miyazawa
IPC: F01M9/02 , C23C30/00 , F01M1/08 , F01M1/16 , F02B3/06 , F02B75/02 , F02F1/00 , F02F1/20 , F02F3/00 , F02F5/00 , F16N15/00 , F16N15/02 , F02F3/10 , F02F3/12
CPC classification number: F16N15/02 , C23C30/00 , F01M1/16 , F02F1/20 , F16N15/00 , F01M2001/083 , F01M2001/086 , F02B2075/025 , F02B3/06 , F05C2201/021 , F05C2201/0448 , F05C2201/046
Abstract: A feature of the invention resides in a plating arrangement for a piston that reciprocates within a cylinder. The piston includes a generally cylindrical piston body. The piston body includes a piston head with a nickel plating and a piston skirt with a tin plating provided at the circumference of the piston body. At least one piston ring groove with a molybdenum disulfide plating is provided in the piston skirt at an upper portion of the piston body. A piston ring with a chromium and resin layer is disposed in each of the piston ring grooves. The piston body includes a piston pin hole that defines an inner diameter surface of the piston. The inner diameter surface has a molybdenum disulfide plating. The plating arrangement for the piston enhances lubrication of the piston. Additionally, the present invention includes a lubricating system for a two-cycle, crankcase compression, diesel engine, comprising a cylinder block and head assembly, the cylinder block and head assembly includes a plurality of cylinders, a piston disposed in each of said cylinders so as to reciprocate in an axial direction of said cylinders, and the oil includes a polyisobutane additive for further enhancing lubrication of the piston.
Abstract translation: 本发明的一个特征在于一种用于在气缸内往复运动的活塞的电镀装置。 活塞包括大致圆柱形的活塞体。 活塞主体包括具有镀镍的活塞头和设置在活塞体周围的镀锡的活塞裙部。 在活塞裙部的活塞主体的上部设有至少一个具有二硫化钼电镀的活塞环槽。 具有铬和树脂层的活塞环设置在每个活塞环槽中。 活塞体包括限定活塞的内径表面的活塞销孔。 内径表面具有二硫化钼电镀。 活塞的电镀装置增强了活塞的润滑。 另外，本发明包括一个用于两循环曲轴箱压缩的柴油发动机的润滑系统，该柴油发动机包括气缸体和头部组件，气缸体和头部组件包括多个气缸，每个所述气缸中设置一个活塞， 以便在所述气缸的轴向上往复运动，并且所述油包括用于进一步提高活塞润滑性的聚异丁烷添加剂。
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395.发明授权
公开(公告)号：US5763106A
公开(公告)日：1998-06-09
申请号：US588733
申请日：1996-01-19
Applicant: Cheryl Renee Blanchard , Richard Allen Page
Inventor： Cheryl Renee Blanchard , Richard Allen Page
CPC classification number: C23C4/04 , C23C4/06 , F16C33/14 , F05C2201/0448 , Y10T428/12014 , Y10T428/12049 , Y10T428/12063 , Y10T428/12139 , Y10T428/12181 , Y10T428/24917 , Y10T428/29 , Y10T428/2918 , Y10T428/2991 , Y10T428/30
Abstract: The present invention provides a ceramic based composite powder and a method for applying the composite powder using a H.V.O.F. gun to form a self-lubricating coating for metal parts. The composite powder and coating are comprised of a ceramic powder, a metal powder, and a solid lubricant powder.
Abstract translation: 本发明提供一种陶瓷基复合粉末和使用H.V.O.F.施加复合粉末的方法。 以形成用于金属部件的自润滑涂层。 复合粉末和涂层由陶瓷粉末，金属粉末和固体润滑剂粉末组成。
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Patent Agency Ranking
公开(公告)号：US5737838A
公开(公告)日：1998-04-14
申请号：US758858
申请日：1996-12-02
Applicant: Hiromi Niimi , Yasuhiro Kawabata , Soichi Hara , Tomohiro Sawada
Inventor： Hiromi Niimi , Yasuhiro Kawabata , Soichi Hara , Tomohiro Sawada
CPC classification number: B22D19/0027 , F02F3/003 , F02F2003/0061 , F05C2201/021 , F05C2201/0448 , Y10T29/49261
Abstract: The method of making a piston unit for an internal combustion engine incorporates the steps of pinching a melting core in a mold cavity of a piston mold wherein the melting core includes an inner ring that forms a ring shaped passage within a piston body, an outer ring and a plurality of coupling portions connected with between the inner ring and the outer ring. The method further includes pouring molten metallic alloy into the cavity and solidifying therein, removing the outer ring of the melting core, filling the space left by removal of the outer ring with reinforced material, and then melting the inner ring and the coupling portions of the melting core.
Abstract translation: 制造用于内燃机的活塞单元的方法包括将熔化芯夹在活塞模具的模腔中的步骤，其中熔化芯包括在活塞体内形成环形通道的内环，外环 以及与内圈和外圈之间连接的多个联接部。 该方法还包括将熔融的金属合金浇注到空腔中并在其中固化，去除熔化芯的外环，通过用增强材料去除外环来填充剩余的空间，然后熔化内环和 熔芯。
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公开(公告)号：US5727535A
公开(公告)日：1998-03-17
申请号：US707390
申请日：1996-09-04
Applicant: William K. Wallace
Inventor： William K. Wallace
CPC classification number: F02F3/26 , F02F3/0015 , F05C2201/0448 , F05C2251/042
Abstract: In an internal combustion engine, a piston/cylinder arrangement includes a hemispherical combustion chamber formed either in a piston crown secured to a top of the piston or in the piston head itself. This hemispherical combustion chamber occupies substantially an entirety of the surface area of the upper face of the piston crown or piston. A cylinder head extension member extends downwardly into the hemispherical combustion chamber so as to occupy a volume thereof as necessary to increase the compression ratio to a desired value. When the hemispherical combustion chamber is formed in the piston crown, the piston crown is secured to but spaced apart from the piston head so as to insulate the piston crown from the piston head. This enables the piston crown to be formed of superior grade metal relative to the piston head.
Abstract translation: 在内燃机中，活塞/气缸装置包括形成在固定到活塞顶部或活塞头本身中的活塞冠中的半球形燃烧室。 该半球形燃烧室占据活塞顶部或活塞的上表面的大致整个表面积。 气缸盖延伸构件向下延伸到半球形燃烧室中，以便占据其体积，以将压缩比增加到期望值。 当半球状燃烧室形成在活塞顶部时，活塞顶部固定到活塞头上但与活塞头间隔开，以使活塞顶部与活塞头绝缘。 这使得活塞冠相对于活塞头形成为高级金属。
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公开(公告)号：US5724933A
公开(公告)日：1998-03-10
申请号：US610597
申请日：1996-03-06
Applicant: Aulis Silvonen , Trygve Ahlroth , Pasi Halla-aho
Inventor： Aulis Silvonen , Trygve Ahlroth , Pasi Halla-aho
CPC classification number: F02F3/0023 , F02F3/22 , F02B23/0696 , F02B3/06 , F02F2200/04 , F05C2201/021 , F05C2201/0448 , F05C2251/042
Abstract: Piston unit for an internal combustion engine, especially for a large diesel engine, comprising at least three main parts located in successive order in the direction of the longitudinal axis of the piston and to be connected to each other. The piston unit includes a uniform upper part (3), which defines, when installed within a cylinder of the engine, a combustion chamber from the side of the piston and which is fixed inside of the piston at its central region to a middle part (2) of the piston unit preferably by means of a screw (4) or the like. At least the main part of, preferably all of the piston ring grooves (7) are arranged on a middle part (2). In addition the upper part (1) is selected to be of a material with better heat resistance than that of the middle part (2) and of a lower part (1).
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公开(公告)号：US5669285A
公开(公告)日：1997-09-23
申请号：US597665
申请日：1996-02-07
Applicant: Paul David Wiczynski , Richard Duane Conrow , Siegfried Gustav Mielke
Inventor： Paul David Wiczynski , Richard Duane Conrow , Siegfried Gustav Mielke
CPC classification number: F16J1/22 , F02F3/0015 , F05C2201/021 , F05C2201/0448
Abstract: Spherical joint connecting rod holder rings. The holder ring is formed in two halves which define a socket in which a spherical small end of the connecting rod is retained. The ring further includes a vertical wall which acts as an oil dam to retain oil in a piston cooling gallery. One or more drain holes are formed in the ring to drain oil from the cooling gallery back to the engine crankcase. Futhermore, one or more grooves are formed in the socket surface in order to channel oil into the socket for lubrication of the spherical small end.
Abstract translation: 球形接头连杆支架环。 保持环形成在限定了连接杆的球形小端部的插座的两个半部中。 该环还包括垂直壁，其作为油坝将油保持在活塞冷却库中。 在环中形成一个或多个排水孔，以将油从冷却箱排出回到发动机曲轴箱。 此外，在插座表面中形成一个或多个槽，以便将油引导到插座中以润滑球形小端。
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公开(公告)号：US5653204A
公开(公告)日：1997-08-05
申请号：US651131
申请日：1996-05-21
Applicant: Bradley J. Shaffer
Inventor： Bradley J. Shaffer
CPC classification number: F16J1/18 , F02F3/003 , F02F2200/04 , F05C2201/021 , F05C2201/0448
Abstract: The design and construction of past piston pin assemblies includes a retaining device which adds stress concentration factors to the piston pin assembly, piston skirt or piston crown. The present invention provides a device for retaining the piston assembly to the connecting rod and retaining the two parts of the piston pin assembly together without adding a stress concentration factor. The device uses a retaining means which applies a compressive force along the entire piston pin to add rigidity to the piston pin assembly. This design additionally allows for a stronger piston assembly with greater pull apart resistance and/or a lighter total weight piston assembly.
Abstract translation: 过去的活塞销组件的设计和构造包括一个保持装置，其将应力集中因子加到活塞销组件，活塞裙或活塞顶盖上。 本发明提供了一种用于将活塞组件保持在连杆上并将活塞销组件的两个部分保持在一起而不增加应力集中因素的装置。 该装置使用保持装置，其沿着整个活塞销施加压缩力以增加活塞销组件的刚性。 该设计另外允许具有更大拉力阻力的更强的活塞组件和/或更轻的总重量的活塞组件。
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