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252 条记录 (耗时 0.034 秒)

    Combination of cylinder and piston ring
    1.
    发明授权
    Combination of cylinder and piston ring 有权

    公开(公告)号：US11821524B2

    公开(公告)日：2023-11-21

    申请号：US17757092

    申请日：2020-11-19

    申请人： KABUSHIKI KAISHA RIKEN

    发明人： Akio Shinohara

    IPC分类号： C23C14/06 ,  F16J9/26 ,  F16J9/28

    CPC分类号： F16J9/26 ,  F16J9/28

    摘要： The present disclosure is a combination of a cylinder and a piston ring, the combination including a cylinder of an internal combustion engine and a piston ring sliding on an inner peripheral surface of the cylinder. The piston ring has an outer peripheral surface sliding on the inner peripheral surface of the cylinder, and the outer peripheral surface is formed of a substantially hydrogen-free amorphous carbon coating. The Vickers hardness Hd of the amorphous carbon coating and the Vickers hardness Hb of the inner peripheral surface of the cylinder satisfy Hd+Hb≤2500 HV. The ratio ID/IG of the peak intensity of the D band to the peak intensity of the G band in a Raman spectrum obtained by measuring the amorphous carbon coating by Raman spectroscopy is 0.60 or more and 1.33 or less.

    Internal combustion engine
    4.
    发明授权
    Internal combustion engine 有权

    公开(公告)号：US11053884B2

    公开(公告)日：2021-07-06

    申请号：US17031226

    申请日：2020-09-24

    申请人： Coutts Industries Inc.

    发明人： Clyde Coutts

    IPC分类号： F02F3/20 ,  F02F1/42 ,  F02M35/10 ,  F02M35/104 ,  F02B75/02 ,  F02B75/32 ,  F02B33/06 ,  F02B33/30 ,  F16H21/36 ,  F16J9/28

    摘要： An internal combustion engine includes a hollow cylinder, a piston within the hollow cylinder, and a cylinder head. A base valve assembly at a base of the hollow cylinder permits or restricts fluid flow from an intake manifold into a sub-chamber below the piston. The piston includes at least one intake port connecting a combustion chamber above the piston with the sub-chamber, and a transfer valve that opens and closes the at least one intake port. When the transfer valve opens the at least one intake port, fluid is permitted to flow from the sub-chamber to the combustion chamber. The internal combustion engine operates according to a four-stroke piston cycle, wherein multiple intake stages are provided. The intake stages may include intake of air into the sub-chamber during a compression stroke, transfer of air from the sub-chamber to the combustion chamber during a power stroke, intake of air-fuel mixture into the sub-chamber during an exhaust stroke, and transfer of air-fuel mixture from the sub-chamber to the combustion chamber during an intake stroke.

    ROD PACKING
    5.
    发明申请
    ROD PACKING 审中-公开

    公开(公告)号：US20200088298A1

    公开(公告)日：2020-03-19

    申请号：US16357875

    申请日：2019-03-19

    申请人： MITSUI E&S MACHINERY CO., LTD.

    发明人： Masaki TANAKA

    IPC分类号： F16J9/28

    摘要： The invention provides a rod packing that is capable of minimizing the leakage of a fluid, by fully maintaining its contact state with a shaft at a shaft seal part even when the rod packing abrades and even when it expands/contracts due to a temperature change. In one surface of a ring member, a plurality of incision grooves incised in a radial direction from an inner peripheral edge up to an appropriate position and those incised from an outer peripheral edge to an appropriate position are alternately formed, and in the other surface, incision grooves continuing from the inner peripheral edge up to the outer peripheral edge are formed. In order to adapt to the expansion and the contraction due to a temperature change and a change in shape and dimension due to abrasion, the inner incision grooves and the outer incision grooves increase/decrease in width, causing the packing to expand/contract in the circumferential direction, so that the rod packing is capable of maintaining its

    SEALING RING HAVING A POROUS LAYER
    6.
    发明申请
    SEALING RING HAVING A POROUS LAYER 审中-公开

    公开(公告)号：US20190049007A1

    公开(公告)日：2019-02-14

    申请号：US16059976

    申请日：2018-08-09

    申请人： EtaGen, Inc.

    发明人： Jodie Prudhomme

    IPC分类号： F16J9/12 ,  F16J9/28 ,  F16J15/16

    摘要： A sealing ring segment of a sealing ring assembly may include three layers. The middle layer is permeable to gas, thus allowing radial pressure-balancing on the sealing ring segment to reduce wear. The gas-permeable allows gas to permeate from a high-pressure region to a clearance gap between a radially outer surface of the segment and a bore of a cylinder. The flow of gas affects the pressure at the radially outer surface, thus reducing the resultant radial outward force on the segment, as compared to no gas permeation. The gas-permeable layer may be porous, sintered, or have any other suitable structure having suitable gas permeability properties. The gas-permeable layer may be positioned central or rearward axially, in relation to the outer layers. The gas-permeable layer may extend the full radial thickness of the sealing ring segment.

    Piston ring for internal combustion engine
    8.
    发明授权
    Piston ring for internal combustion engine 有权

    公开(公告)号：US09920836B2

    公开(公告)日：2018-03-20

    申请号：US15030123

    申请日：2014-10-16

    申请人： KABUSHIKI KAISHA RIKEN

    发明人： Hayato Sasaki ,  Takashi Ono ,  Yongtie Yan

    IPC分类号： F16J9/26 ,  F16J9/22 ,  F16J9/28

    CPC分类号： F16J9/22 ,  F16J9/26 ,  F16J9/28

    摘要： Provided is a piston ring for an internal combustion engine capable of preventing aluminum cohesion for a long time under conditions with high temperature and a high load and also suppressing the wearing of a piston member. A piston ring 1 for the internal combustion engine including a piston ring body 11 having at least one of an upper side face and a lower side face coated with an aluminum cohesion resistance film 12, wherein the aluminum cohesion resistance film 12 has a first coating film 12a made of first ceramics material formed on the piston ring body and a second coating film having Vickers hardness HV smaller than that of the first ceramics material formed on the first coating film 12a.

    PREFILLED SYRINGE, GASKET FOR USE IN PREFILLED SYRINGE, AND GASKET PRODUCTION METHOD
    10.
    发明申请
    PREFILLED SYRINGE, GASKET FOR USE IN PREFILLED SYRINGE, AND GASKET PRODUCTION METHOD 有权
    预充式注射器，用于预充式注射器的垫圈和垫圈生产方法

    公开(公告)号：US20160235919A1

    公开(公告)日：2016-08-18

    申请号：US15000898

    申请日：2016-01-19

    申请人： SUMITOMO RUBBER INDUSTRIES, LTD.

    发明人： Hiroaki NAKANO

    IPC分类号： A61M5/315 ,  F16J9/28 ,  B29C63/00 ,  F16J9/20

    CPC分类号： A61M5/31513 ,  A61M5/315 ,  A61M5/31511 ,  A61M2207/00 ,  B29C63/0004 ,  B29C63/0073 ,  B29L2031/265 ,  F16J9/20 ,  F16J9/28

    摘要： When a laminated gasket product is demolded from a mold in production thereof by a conventional production process, the gasket product is rubbed against the mold and, therefore, minute scratches are formed on a surface of the gasket product. The minute scratches may impair the reliable sealability of a liquid drug. A method for producing a gasket (13) for use in a prefilled syringe (10) includes the steps of: preparing a gasket forming mold; molding a gasket (13) in the mold, the gasket having a surface laminated with a lamination film (15) and including a circumferential surface portion (17); demolding the gasket (13) from the mold, and then simultaneously forming a groove (22) and a projection (24) each extending circumferentially of the gasket in a portion of the lamination film (15) present in the circumferential surface portion (17) of the gasket.

    摘要翻译： 当通过常规的生产方法将层压垫片产品从其生产中的模具脱模时，垫圈产品被摩擦在模具上，因此在垫圈产品的表面上形成微小的划痕。 微小的划痕可能会损害液体药物的可靠密封性。 一种用于制造用于预充式注射器（10）的垫圈（13）的方法，包括以下步骤：制备垫圈成型模具; 在所述模具中模制垫圈（13），所述垫圈具有层压有层压膜（15）并且包括圆周表面部分（17）的表面; 然后，在存在于周面部（17）的层叠膜（15）的一部分中，同时形成在垫圈周向延伸的槽（22）和突起（24） 的垫圈。