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公开(公告)号：US4343229A
公开(公告)日：1982-08-10
申请号：US35682
申请日：1979-05-03
Applicant: Yoshihiko Tsuzuki , Kiyoshi Uchida , Toshio Tanahashi
Inventor： Yoshihiko Tsuzuki , Kiyoshi Uchida , Toshio Tanahashi
CPC classification number: F02F3/003 , F02F3/12 , F05C2201/021 , F05C2201/0448 , F05C2201/046 , F05C2251/042
Abstract: An engine piston composed of a head and a body separately formed from the head. The head is of ceramic material and the body is light metal or light alloy. The head and the body are connected against axial movement by interengagement of inclined surfaces on the head and body by rotation of the head relative to the body, and the head and body are then fixed against relative rotation by an anti-turning device, this arrangement preventing development of excessive thermal stress. The piston is of reduced weight, can be mass-produced, and reduces fuel consumption.
Abstract translation: 一种发动机活塞，由头部和主体构成，该主体与头部分别形成。 头是陶瓷材料，身体是轻金属或轻合金。 头部和主体通过头部相对于主体的旋转而相互接合头部和主体上的倾斜表面而相对于轴向移动，并且头部和主体然后通过防转动装置抵抗相对旋转而固定，这种布置 防止过度热应力的发展。 活塞减重，可批量生产，降低燃油消耗。
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公开(公告)号：US4303004A
公开(公告)日：1981-12-01
申请号：US12996
申请日：1979-02-21
Applicant: Karl Eickmann
Inventor： Karl Eickmann
CPC classification number: F04B1/20 , F05C2201/0448
Abstract: For an assembly of two bodies wherein one of the bodies has a part-ball portion and the other has a part-ball formed hollow seat of complementary surface, a slot is provided in the body with the hollow portion and the ball formed portion of the other body is mounted into the hollow portion, while a spring washer presses the bodies together when a snap ring having an extension engaging into the slot and being kept in a ring groove is inserted into the hollow portion. The body with the ball formed portion has retaining faces which are engaged by the washer and the washer also has an extension to enter into the slot, whereby the assembly assures, that one of the bodies can pivot relatively to the other body, but that the bodies are prevented from rotational movements relatively to each other.
Abstract translation: 对于其中一个主体具有部分球部分并且另一个具有部分球形成的互补表面的中空座的两个主体的组件，在主体中设置有中空部分和球形成部分的槽 另一个主体安装在中空部分中，而当具有接合到槽中并保持在环槽中的延伸部的卡环将弹簧垫圈压在一起时，弹簧垫圈插入到中空部分中。 具有球形部分的主体具有由垫圈接合的保持面，并且垫圈还具有延伸部进入槽中，由此组件确保其中一个主体可以相对于另一个主体枢转，但是， 防止身体相对于彼此旋转运动。
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公开(公告)号：US4292937A
公开(公告)日：1981-10-06
申请号：US76598
申请日：1979-09-18
Applicant: Jean-Pierre Vallaude
Inventor： Jean-Pierre Vallaude
CPC classification number: F02F3/28 , F02B3/06 , F05C2201/0448
Abstract: A piston for internal combustion engines, especially for motors of the Diesel type. On purpose to reduce the heat diffusion from the piston crown to the piston portion where are fitted the sealing piston rings, provision is made of an internal circular groove intended to reduce the thickness of the connection portion between the piston crown and the side portion where are fitted the sealing rings, an external cut tangentially formed in the piston side portion substantially at the connection thereof with the piston crown, i.e. above the grooves of the piston rings, being substituted for the circular groove which is interrupted below the regions of the piston crown provided with any recess which would cause the thickness of the connection portion to be too slight.
Abstract translation: 用于内燃机的活塞，特别是用于柴油机的电动机。 为了减少从活塞顶部到装配密封活塞环的活塞部分的热扩散，设置有用于减小活塞顶部和侧部之间的连接部分的厚度的内部圆形槽，其中 安装密封环，在活塞侧部分切向形成的外部切口，其基本上与活塞顶部的连接处，即活塞环的凹槽的上方，代替在活塞顶部的区域之下被间断的圆形槽 设置有会导致连接部分的厚度太小的任何凹部。
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公开(公告)号：US4253430A
公开(公告)日：1981-03-03
申请号：US2540
申请日：1979-01-11
Applicant: Robert F. Garter , Nshan Hamparian
Inventor： Robert F. Garter , Nshan Hamparian
IPC: F02F3/16 , F01P3/10 , F02B3/06 , F02B23/06 , F02B77/11 , F02F3/00 , F02F3/02 , F02F3/20 , F02F3/26 , F16J1/14 , F01P1/04 , F01B31/08 , F01P3/06
CPC classification number: F02B23/0696 , F02B77/11 , F02F3/20 , F16J1/14 , F02B2275/14 , F02B3/06 , F05C2201/0448 , F05C2251/042 , Y02T10/125
Abstract: An oil cooled diesel engine piston is designed to restrict heat loss from the combustion chamber through provision of a combustion chamber insert defining a central non-oil-cooled chamber and a surrounding annular insulating air gap. The air gap controls heat flow primarily between the combustion gas exposed wall of the insert and an adjacent coolant exposed wall of the main piston volume.The insert is press fitted into a recess in the main piston body and is positively locked therein by a retaining ring. A seal ring closes expansion clearance provided at the upper edge of the insert against significant gas flow into the insulating air gap. Insulating efficiency of the air gap is maximized by forming the gap with a thickness throughout a major portion of its extent of between about 0.040 and 0.060 inches.Numerous additional features are also disclosed.
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公开(公告)号：US4242948A
公开(公告)日：1981-01-06
申请号：US861467
申请日：1977-12-16
Applicant: John H. Stang , Kenneth A. Johnson
Inventor： John H. Stang , Kenneth A. Johnson
CPC classification number: F16J1/005 , F02F3/0023 , F02F3/12 , F02B3/06 , F05C2201/021 , F05C2201/0448 , F05C2251/042
Abstract: The disclosure illustrates an insulated composite piston comprising a crown of ceramic or other heat resistant material secured to an aluminum piston body by a bolt of temperature resistant alloy. A low conductivity interface between the crown and the body is provided by a series of stacked discs having low effective thermal conductivity. The relative thermal expansion of the parts is compensated for by bellville washers on the bolt. The above arrangement insulates the crown from the piston body thereby minimizing the temperature gradient across the crown so that its temperature can be maintained as high as necessary to increase efficiency and minimize noxious emissions.
Abstract translation: 本公开示出了绝缘复合活塞，其包括通过耐温合金螺栓固定到铝活塞体的陶瓷顶盖或其他耐热材料。 通过一系列具有低有效热导率的堆叠盘来提供表冠和主体之间的低电导率界面。 部件的相对热膨胀由螺栓上的钟形垫圈补偿。 上述布置使冠部从活塞体绝缘，从而使冠部上的温度梯度最小化，使得其温度可以保持为必要的高以提高效率并最小化有害排放物。
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Patent Agency Ranking
公开(公告)号：US4137887A
公开(公告)日：1979-02-06
申请号：US804118
申请日：1977-06-06
Applicant: Stephen J. Dunn
Inventor： Stephen J. Dunn
CPC classification number: F02F3/045 , F02B23/0603 , F02B23/0636 , F16J9/22 , F02B2023/0612 , F02B2275/14 , F02B3/06 , F05C2201/021 , F05C2201/0448 , Y02T10/125
Abstract: A method of manufacturing a piston for an internal combustion engine in which a cast-in insert comprising a combustion chamber lip and a piston ring carrier joined by radial limbs is secured against loosening in service by spraying metal or cermet into a peripheral groove partially in the ring carrier and partially in the piston body a band firmly bonded to the carrier and the body. The carrier may be castellated to interlock with the piston material.
Abstract translation: 一种制造用于内燃机的活塞的方法，其中包括燃烧室唇缘和通过径向臂连接的活塞环载体的铸造插入件通过将金属或金属陶瓷部分地在 环形载体，并且部分地在活塞体中具有牢固地结合到载体和主体的带。 载体可以被浇铸成与活塞材料互锁。
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公开(公告)号：US4114518A
公开(公告)日：1978-09-19
申请号：US785630
申请日：1977-04-07
Applicant: Glen A. Glover, Jr. , Robert B. Cambron
Inventor： Glen A. Glover, Jr. , Robert B. Cambron
CPC classification number: F02F3/28 , F02B3/06 , F05C2201/0448
Abstract: A piston includes a plurality of pockets formed in the piston top face and opening through the piston sidewall. An arcuate relief is associated with each pocket and formed in the sidewall to overlap the pocket opening. The depth of the relief is relatively greater than the depth of the pocket.
Abstract translation: 活塞包括形成在活塞顶面中并通过活塞侧壁开口的多个袋。 弓形浮雕与每个凹槽相关联并形成在侧壁中以与口袋开口重叠。 浮雕的深度相对大于口袋的深度。
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公开(公告)号：US4083292A
公开(公告)日：1978-04-11
申请号：US697079
申请日：1976-06-16
Applicant: Alexander Goloff
Inventor： Alexander Goloff
CPC classification number: A23B7/158 , F02F3/0023 , F02F3/16 , F02F3/22 , F16J9/00 , F05C2201/021 , F05C2201/0448
Abstract: An improved piston assembly comprising a generally cylindrical body having at one end a peripheral shoulder and at the other end a depending skirt, an annular ring groove protection band formed of hard metal and having a peripheral, radially outwardly opening ring receiving groove seated on the shoulder, and a crown secured to the body one end and having a radially outwardly extending flange engaging the band about its periphery and clamping the band against the shoulder. Insulating means are interposed between the crown and the band.
Abstract translation: 一种改进的活塞组件，其包括大致圆柱体，其一端具有周边肩部，另一端具有悬垂裙部，由硬质金属形成的环形环槽保护带，并且具有位于肩部上的外围径向向外开放的环接收凹槽 以及冠部，其固定在本体一端并且具有径向向外延伸的凸缘，该凸缘围绕其周边接合带并将带夹紧在肩部上。 绝缘装置插在表冠和表带之间。
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公开(公告)号：US4072088A
公开(公告)日：1978-02-07
申请号：US699759
申请日：1976-06-25
Applicant: Alexander Goloff
Inventor： Alexander Goloff
CPC classification number: F02F3/0023 , F05C2201/021 , F05C2201/0448 , F05C2251/042
Abstract: A light weight piston assembly including a piston body formed of a light-weight metal and having a crown and a depending skirt, an annular recess about the end of the body adjacent the crown and opening toward the crown, the portion of the recess immediately adjacent the crown being threaded, a hard metal ring groove protection band having a peripheral, radially outwardly opening ring receiving groove disposed in the recess, at least one annular wavy spring in the recess, and a nut threaded on the threaded portion securing the band and the spring within the recess such that the spring is compressed to store energy to tightly hold the band against movement relative to the body during various piston operating conditions.
Abstract translation: 一种重量轻的活塞组件，包括由轻质金属形成并具有冠部和悬垂裙部的活塞体，围绕主体的端部邻近冠部并朝向冠部开口的环形凹部，紧邻的凹部的部分 冠部被螺纹连接，硬金属环槽保护带具有设置在凹部中的周边的径向向外的开口环容纳槽，凹部中的至少一个环形波状弹簧和螺纹连接在螺纹部分上的螺母，固定带和 弹簧在凹部内，使得弹簧被压缩以存储能量，以在各种活塞操作条件期间相对于身体紧紧地保持带子抵抗运动。
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公开(公告)号：US3930472A
公开(公告)日：1976-01-06
申请号：US505051
申请日：1974-09-11
Applicant: Gernot Athenstaedt
Inventor： Gernot Athenstaedt
CPC classification number: F02F3/0023 , F02B23/0696 , F02F3/003 , F02F3/22 , F01M2001/086 , F02B3/06 , F02F2007/0097 , F05C2201/021 , F05C2201/0448 , F05C2251/042 , Y02T10/125
Abstract: The piston head is hollowed for a central coolant cavity and for an outer annular coolant cavity separated by a ridge by which the head is supported on the piston body. An outer shoulder also supports the skirt part of the head on the piston body. The piston body has an upper part hollowed in the center to form part of the central coolant cavity and a lower part having a wrist pin bearing with coolant recesses in the bearing, which are connected by coolant channels leading to the annular cavity in the head. The wrist pin in the bearing has channels connecting a coolant supply channel in the piston rod to the center of the wrist pin and thence to the bearing recesses.
Abstract translation: 活塞头是中空的，用于中央冷却剂腔和外部环形冷却剂腔，该环形冷却剂腔由脊部分开，头部通过该脊被支撑在活塞体上。 外肩还支撑在活塞体上头部的裙部。 活塞体具有中部中空的上部，以形成中央冷却剂腔的一部分，下部具有带有轴承中的冷却剂凹槽的腕销轴承，该轴承由通向头部中的环形空腔的冷却剂通道连接。 轴承中的腕针具有将活塞杆中的冷却剂供应通道连接到腕针的中心并且从而连接到轴承凹部的通道。
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