公开(公告)号：US4907545A

公开(公告)日：1990-03-13

申请号：US291091

申请日：1988-12-28

Applicant: Floyd D. Mills

Inventor： Floyd D. Mills

IPC: F02F3/22 ,  F16J9/22

CPC classification number: F02F3/22 ,  B22D19/0027 ,  B22D19/0072 ,  F16J9/22 ,  F02F2003/0061 ,  F05C2201/021 ,  F05C2201/0448 ,  Y10S277/93

Abstract: This invention relates to a liquid-cooled piston ring carrier assembly and piston for internal combustion engines. The ring carrier assembly includes an annular metallic body and an enclosure member collectively defining an integral coolant channel. During engine operation, liquid coolant is directed to the coolant channel by way of an inlet passage in the skirt portion of the piston and an aligned inlet port in the ring carrier assembly. An outlet passage in the skirt portion of the piston and an aligned outlet port conveys coolant away from the coolant channel.

Abstract translation: 本发明涉及用于内燃机的液冷活塞环支架组件和活塞。 环形载体组件包括共同限定整体式冷却剂通道的环形金属体和外壳构件。 在发动机运行期间，液体冷却剂通过活塞的裙部中的入口通道和环形承载器组件中对齐的入口导向冷却剂通道。 活塞的裙部中的出口通道和对齐的出口端口使冷却剂远离冷却剂通道。

公开(公告)号：US4896564A

公开(公告)日：1990-01-30

申请号：US4018

申请日：1987-01-16

Applicant: Karl Eickmann

Inventor： Karl Eickmann

IPC: F04B43/00 ,  F04B43/02

CPC classification number: F04B43/02 ,  F04B43/0063 ,  B64C2700/6281 ,  F02F2200/04 ,  F05C2201/021 ,  F05C2201/0448 ,  F05C2201/046

Abstract: In an axial piston motor or pump the cylinder barrel is mounted on a medial shaft which has a shoulder which axially bears against the front end of the rotor barrel. The rear end of the medial shaft is radially borne in a housing portion. The front portion of the medial shaft is provided with a bearing member of an axial thrust bearing for support on a respective axial thrust bearing member in the housing. On the rear end of the rotary barrel an axially selfthrusting control body is provided to seal the flow of fluid to and from the cylinders of the rotary barrel. The control body presses against the rotary barrel, the rotary barrel presses against the shoulder of the medial shaft and the thrust bearing member of the shaft bears on the thrust bearing member of the housing. As a result thereof the cylinders in the rotary barrel can be straight through bores. The manufacturing of the rotor barrel is thereby simplified and the flow acceleration losses of former bore type cylinders are prevented.

Abstract translation: 在轴向活塞马达或泵中，缸筒安装在内侧轴上，该内侧轴具有轴向地抵靠转子筒的前端的肩部。 内侧轴的后端径向地承载在壳体部分中。 内侧轴的前部设置有用于支撑在壳体中的相应的轴向推力轴承构件上的轴向推力轴承的轴承构件。 在旋转筒的后端，提供轴向自调控制体以密封流体流向和从旋转筒的圆筒的流动。 控制体压靠旋转筒，旋转筒压靠在内侧轴的肩部上，轴的止推轴承部件承载在壳体的止推轴承部件上。 结果，旋转筒中的圆筒可以是直通孔。 因此，转子筒的制造被简化，并且防止了前孔型气缸的流动加速损失。

公开(公告)号：US4892069A

公开(公告)日：1990-01-09

申请号：US225455

申请日：1988-07-28

Applicant: Fritz Rosch ,  Bernd Otte

Inventor： Fritz Rosch ,  Bernd Otte

IPC: F02F3/18 ,  F02F3/26

CPC classification number: F02F3/18 ,  F02F3/26 ,  F02F2001/008 ,  F02F2200/04 ,  F05C2201/021 ,  F05C2201/0448 ,  F05C2251/042

Abstract: A component subjected to zonally differential thermal stress for engines, machinery or other devices, in particular a component for combustion engines. In these components, in order to arrange more favourably the stress variation as a function of temperature in the thermally highly stressed parts or regions, so that the adjoining colder regions do not reduce or hinder its expansion, in the material of the component, for example a piston of a combustion engine, in the neighbourhood of the zones of higher thermal loading, at least one closed hollow chamber is provided which is completely filled with a substance which has a higher coefficient of thermal expansion than that of the material of the component surrouding the chamber.

Abstract translation: 用于发动机，机械或其他装置，特别是内燃机部件的区域性热应力的部件。 在这些部件中，为了在热应力高的部件或区域中更好地布置作为温度的函数的应力变化，使得邻近的较冷的区域不会在部件的材料中减少或阻碍其膨胀，例如 燃烧发动机的活塞在较高热负荷区域附近，提供至少一个封闭的中空室，其完全填充物质，该物质的热膨胀系数高于围绕部件的材料的热膨胀系数 房间。

公开(公告)号：US4876947A

公开(公告)日：1989-10-31

申请号：US27876

申请日：1987-03-19

Applicant: Michael L. P. Rhodes

Inventor： Michael L. P. Rhodes

IPC: F02F3/00

CPC classification number: F02F3/0069 ,  F05C2201/021 ,  F05C2201/0433 ,  F05C2201/0448

Abstract: Pistons are discribed comprising a crown portion which also includes a piston ring belt and gudgeon-pin bosses and which crown portion comprises a ferrous allow and a seperate articulated skirt portion comprising a casting of aluminum alloy, steel or cast iron which also includes gudgeon-pin bores, the crown portion and the skirt portion having a common gudgeon-pin about which the articulated skirt portion is freely able to move relative to the crown portion.

Abstract translation: 排列的活塞包括冠部，其还包括活塞环带和舵头销凸起，并且该冠部包括铁质允许和单独的铰接裙部，其包括铝合金，钢或铸铁铸件，其还包括舵针 孔，冠部和裙部具有共同的榫扣销，铰接的裙部部分围绕其相对于冠部自由地移动。

公开(公告)号：US4848291A

公开(公告)日：1989-07-18

申请号：US198693

申请日：1988-05-24

Applicant: Hideo Kawamura ,  Hiroshi Matsuoka

Inventor： Hideo Kawamura ,  Hiroshi Matsuoka

IPC: F02B77/11 ,  F02F3/00 ,  F02F3/12

CPC classification number: F02F3/0023 ,  F02B77/11 ,  F02F3/003 ,  F02F3/12 ,  F05C2201/021 ,  F05C2201/0448 ,  F05C2201/046 ,  F05C2251/042 ,  F05C2253/16

Abstract: The heat-insulating piston structure according to the present invention is formed by fixing a piston head, which consists of a material the coefficient of thermal expansion of which is substantially equal to that of a ceramic material, to a piston skirt, and setting a thin, flat plate portion of a ceramic material on the whole of the flat surface of the piston head which is on the side of a combustion chamber via a heat-insulating member. Accordingly, the piston can be formed so that it has excellent heat-insulating characteristics and high thermal resistance, deformation resistance and corrosion resistance. Especially, the thin plate portion of a ceramic material, which is exposed to a combustion gas, can be formed to the smallest possible thickness to reduce the thermal capacity thereof greatly. Therefore, the temperature of the wall of the combustion chamber varies easily with that of the combustion gas (in other words, the amplitude of the temperature of this wall becomes large). Consequently, a difference between the temperature of the thin plate portion of a ceramic material and those of the gases (combustion gas and suction air) becomes small momentarily, so that the heat transfer rate of the thin plate portion decreases. This causes a decrease in the quantity of heat which the suction air receives from the wall surface. As a result, the suction air smoothly enters the combustion chamber without being expanded therein. This enables the suction efficiency and cycle efficiency to be improved.

公开(公告)号：US4831917A

公开(公告)日：1989-05-23

申请号：US76575

申请日：1987-07-22

Applicant: Hans Houben ,  Eckhard Haas

Inventor： Hans Houben ,  Eckhard Haas

IPC: F02B3/06 ,  F02B23/06 ,  F02F3/00 ,  F02F3/22

CPC classification number: F02F3/0023 ,  F02B23/0696 ,  F02F3/22 ,  F02B3/06 ,  F05C2201/021 ,  F05C2201/0448 ,  Y02T10/125

Abstract: A multiple piece piston is provided for a diesel internal combustion engine having a combustion chamber depression in the crown of the piston. In order to achieve a low rate of heat flow into the piston ring area and thus into the cylinder liner which surrounds the piston, a separate piston base or crown surrounding the combustion chamber depression is formed by a ring element made of a material having poor thermal conductivity, and the main body of the piston is made of a material with high thermal conductivity. The heat of combustion is thus conducted mainly axially through the piston main body and absorbed by sprayed cooling oil. The cooling oil, thus heated, can be utilized for heating purposes.

Abstract translation: 为具有在活塞顶部的燃烧室凹陷的柴油内燃机提供多件活塞。 为了实现低流入活塞环区域并因此进入围绕活塞的气缸套的热量，围绕燃烧室凹部的单独的活塞底座或顶盖由具有差热的材料制成的环形元件形成 活塞的主体由导热性高的材料制成。 因此，燃烧热主要在轴向上通过活塞主体并被喷射的冷却油吸收。 这样加热的冷却油可用于加热目的。

公开(公告)号：US4830932A

公开(公告)日：1989-05-16

申请号：US206904

申请日：1988-06-15

Applicant: Tadashi Donomoto ,  Atsuo Tanaka ,  Yoshiaki Tatematsu

Inventor： Tadashi Donomoto ,  Atsuo Tanaka ,  Yoshiaki Tatematsu

IPC: B22D18/02 ,  B22D19/00 ,  B22D19/14 ,  B32B15/14 ,  C22C47/00 ,  C22C47/06 ,  C22C47/08 ,  C22C47/12 ,  C23C4/04 ,  C23C28/00 ,  F02B3/06 ,  F02B77/02 ,  F02F3/12

CPC classification number: C22C47/06 ,  B22D19/0009 ,  B22D19/14 ,  C22C47/08 ,  C23C28/00 ,  F02B77/02 ,  F02F3/12 ,  B22F2998/00 ,  C22C2204/00 ,  F02B3/06 ,  F02F2200/04 ,  F05C2201/021 ,  F05C2201/028 ,  F05C2201/0448 ,  F05C2253/16 ,  Y10S428/937 ,  Y10T428/12444 ,  Y10T428/12451 ,  Y10T428/12472 ,  Y10T428/12486 ,  Y10T428/12729 ,  Y10T428/1275 ,  Y10T428/12757

Abstract: Light alloy articles comprising a body of light alloy having a composite layer of heat-resistant fibers and light alloy and bonded to said body, and a surface layer of heat-resisting alloy sprayed onto said composite layer exhibit improved integrity and heat resistance when the heat-resisting alloy is plasma sprayed onto one surface of a preform of fibers and the light alloy is then cast to the opposite surface of the preform such that an interfacial layer is defined between the composite layer and the surface layer in which the fibers and light alloy are integrally incorporated with the heat-resisting alloy.

Abstract translation: 包括具有耐热纤维和轻合金的复合层并结合到所述主体的轻合金体的轻合金制品以及喷涂在所述复合层上的耐热合金表面层在热时表现出提高的完整性和耐热性 将等离子体喷涂在纤维预成型体的一个表面上，然后将轻合金浇铸到预成型体的相对表面，使得在复合层和表面层之间界定界面层，其中纤维和轻合金 与耐热合金整体结合。

公开(公告)号：US4811654A

公开(公告)日：1989-03-14

申请号：US928413

申请日：1986-11-07

Applicant: Fritz Rosch

Inventor： Fritz Rosch

IPC: F02F3/00 ,  F02F3/22 ,  F16J1/16 ,  F02F3/16

CPC classification number: F02F3/0069 ,  F02F3/22 ,  F16J1/16 ,  F05C2201/0448 ,  Y10T403/32861 ,  Y10T403/32901

Abstract: Piston for combustion engines consisting of an upper part forming the piston crown and a lower part forming the piston body. These two piston parts abut via annular contact surfaces in the piston axial direction and are coupled together via a gudgeon pin or a gudgeon pin bushing. In order to arrange such an unscrewed piston in such manner that its upper part need not be constructed to be rigid and heavy as in an articulated piston with pendulum shaft and that the construction of cooling channels between the upper and lower parts is possible without excessive expenditure and the constructional height of the piston can be small, the contact surfaces are mutually prestressed in the direction of the piston axis in that the gudgeon pin bore in the one piston part is arranged to be offset relative to the gudgeon pin bore in the other piston part in the unstressed condition in the direction of the piston axis. In this connection, the offset can amount to 0.5 to 10 parts per thousand of the piston diameter. By this offset according to the invention a substantially rigid inter-engaged and frictionally inter-locking coupling between the two piston parts is ensured.

Abstract translation: 用于内燃机的活塞由形成活塞顶部的上部和形成活塞体的下部组成。 这两个活塞部件在活塞轴向方向上通过环形接触表面邻接，并通过舵头销或舵头销轴套连接在一起。 为了安排这样一个未旋转的活塞，使得其上部不需要像具有摆轴的铰接式活塞那样刚性和重型构造，并且上部和下部之间的冷却通道的构造是可能的，而不会有过度的支出 并且活塞的结构高度可以较小，接触表面在活塞轴线的方向上相互预应力，因为一个活塞部件中的舵头销孔布置成相对于另一个活塞中的舵头孔孔偏移 部分处于活塞轴方向的无应力状态。 在这方面，偏移量可以达到活塞直径的千分之0.5到10分。 通过根据本发明的偏移，确保了两个活塞部件之间的基本刚性的互相啮合和摩擦上的相互锁定的联接。

公开(公告)号：US4785720A

公开(公告)日：1988-11-22

申请号：US60538

申请日：1987-06-11

Applicant: Takio Kojima ,  Mitsuyoshi Kawamura ,  Shigeaki Akao

Inventor： Takio Kojima ,  Mitsuyoshi Kawamura ,  Shigeaki Akao

IPC: F02B75/02 ,  F02F1/22 ,  F02F3/00 ,  F02F3/22 ,  F16J1/08 ,  F16J1/16 ,  F16J1/18

CPC classification number: F16J1/08 ,  F02F1/22 ,  F16J1/16 ,  F02B2075/025 ,  F05C2201/0448

Abstract: A piston boss is formed with an oil inlet hole for collecting oil flowing downward along a piston and allowing it to flow toward a snap ring and an end of a ceramic piston pin in contact with the snap ring. The oil having lubricated the snap ring and the end of the piston pin is collected by an oil outlet hole formed in the piston boss and allowed to flow downward therethrough.

Abstract translation: 活塞凸台形成有用于收集沿着活塞向下流动的油的进油孔，并允许其流向卡扣环和与卡环接触的陶瓷活塞销的端部。 油已经润滑了卡环，活塞销的端部由形成在活塞凸台中的出油孔收集并允许其向下流动。

公开(公告)号：US4782737A

公开(公告)日：1988-11-08

申请号：US945635

申请日：1986-12-23

Applicant: Karl Eickmann

Inventor： Karl Eickmann

IPC: F04B1/20 ,  F01B13/06

CPC classification number: F04B1/20 ,  F05C2201/0448

Abstract: A fluid machine such as a pump, compressor, engine, motor or transmission has working chambers in a rotor and a central rotor-hub is provided in the rotor for the reception of a control pintle therein. The control pintle has control ports for the control of flow of fluid into and out of the working chambers of the rotor. Pressure fields form in the clearance between the rotor hub and the control pintle especially around the control ports. Leakage flows from the pressure fields through portions of the clearance between the rotor--hub and the control pintle which reduces the efficiency of the machine. Therefore means are provided in the control pintle to press those portions of the faces of the rotor hub and of the control pintle, which have those local pressure fields, together or to narrow the clearance between these faces in the respective areas where those pressure fields are located in order to reduce the leakage through the clearance between the faces of the rotor hub and the control pintle. In detail, the invention provides, in the central pintle, radially directed thrust chambers with thrust bodies therein at the proper locations and sizes to obtain an economic device with only small leakage.

Abstract translation: 诸如泵，压缩机，发动机，马达或变速器的流体机械在转子中具有工作室，转子中设置有中心转子毂，用于在其中接收控制栓塞。 控制枢轴具有用于控制流体流入和流出转子的工作室的控制端口。 压力场形成在转子毂和控制枢轴之间的间隙中，特别是在控制端口周围。 泄漏从压力场流过转子毂和控制枢轴之间的间隙的一部分，这降低了机器的效率。 因此，在控制枢栓中设置有将具有这些局部压力场的转子轮毂和控制枢轴的面的那些部分压在一起，或者在这些压力区域的相应区域中缩小这些面之间的间隙 以便通过转子毂的表面和控制枢轴之间的间隙减小泄漏。 具体地，本发明在中心枢轴中提供径向推力室，其中具有推力体的适当位置和尺寸以获得仅具有小的泄漏的经济装置。