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    • 43. 发明申请
    • LUBRICATION APPARATUS FOR FOUR-STROKE ENGINE
    • 四冲程发动机润滑装置
    • US20120199097A1
    • 2012-08-09
    • US13502799
    • 2010-06-23
    • Masaki SugiyamaToshihiro TomitaMasaki KurimotoHiroshi KubotaTetsuya Hasegawa
    • Masaki SugiyamaToshihiro TomitaMasaki KurimotoHiroshi KubotaTetsuya Hasegawa
    • F01M1/04
    • F16N7/32F01M1/04F01M3/04F01M11/02
    • A lubrication apparatus for a four-stroke engine (1) is provided that prevents lubrication failure from occurring around the crankshaft and reliably prevents oil from remaining in a valve operating chamber (30). The lubrication apparatus for the four-stroke engine (1) includes: an intake part (55) positioned below the level of an oil A in an oil reservoir (7) even if the oil reservoir (7) is tilted and the level of the oil A changes; an oil feeding passageway (54) that sucks up the oil A from the intake part (55) and supplies the oil A to the crank chamber (5a); and an direct passageway (47) that allows communication between a valve operating chamber (30) and a crank chamber (5a) when a negative pressure is created in the crank chamber (5a). Open end parts (47a, 54a) of the oil feeding passageway (54) and the direct passageway (47) which are open in the crank chamber (5a) are provided to open as the piston (13) moves from a position near the top dead center to the top dead center. It is possible to control the flow rate of oil supplied to the crank chamber (5a) via the oil supply passageway (54) by means of a flow rate control passageway (67) that allows communication between a supply passageway (51) to supply oil mist from the oil reservoir (7) to the valve operating chamber (30) and the oil feeding passageway (54).
    • 提供一种用于四冲程发动机(1)的润滑装置,其防止在曲轴周围发生润滑故障,并且可靠地防止油残留在阀操作室(30)中。 用于四冲程发动机(1)的润滑装置包括:即使储油器(7)倾斜并且油位(7)的水平位于油藏(7)中的位于油A的高度之下的进气部分(55) 油A变化; 供油通路(54),其从所述进气部(55)吸入油A,并将油A供给到所述曲柄室(5a); 以及当在曲柄室(5a)中产生负压时允许阀操作室(30)和曲柄室(5a)之间的连通的直接通道(47)。 供油通道(54)的开口端部(47a,54a)和在曲柄室(5a)中敞开的直接通道(47)设置成随着活塞(13)从靠近顶部 死中心到上死点。 可以通过流量控制通道(67)来控制经由供油通道(54)供应到曲柄室(5a)的油的流量,流量控制通道(67)允许供给通道(51) 从油箱(7)到阀操作室(30)和供油通道(54)的雾。
    • 46. 发明授权
    • White laminated polyester film for metallic plate lamination work
    • 白色层压聚酯薄膜,用于金属板层压工作
    • US06420010B1
    • 2002-07-16
    • US09077837
    • 1998-06-04
    • Tetsuya HasegawaHirofumi MurookaKoji KuboTetsuo Yoshida
    • Tetsuya HasegawaHirofumi MurookaKoji KuboTetsuo Yoshida
    • B32B530
    • B32B27/36B32B15/09B32B27/08B32B27/20B32B2367/00B32B2439/66Y10T428/24355Y10T428/2495Y10T428/25Y10T428/259Y10T428/31681Y10T428/31786
    • The invented film comprises a layer A composed of a copolyester A, a layer B composed of a copolyester B, and a layer C composed of copolyester C. Layer A is laminated to one side of the layer B. Layer C is laminated to the other side of Layer B. Copolyester A contains 0-15 wt % of rutile titanium oxide (average particle diameter 0.1-0.5 &mgr;m). Copolyester B contains 10-50 wt % of the rutile titanium oxide. Copolyester C contains 0-15 wt % of the rutile titanium oxide. Each of Copolyester A, B, and C has a melting point of 210-245° C. The intrinsic viscosity (&eegr;A) of the polymer part of copolyester A, the intrinsic viscosity (&eegr;B) of the polymer part of copolyester B, and the intrinsic viscosity (&eegr;C) of the polymer part of copolyester C satisfy the following relationship. 0.46≦&eegr;B≦0.66, |&eegr;A-&eegr;B|
    • 本发明的薄膜包括由共聚酯A,由共聚聚酯B构成的层B和由共聚聚酯C组成的层C构成的层A.层A层叠在层B的一侧。层C层压到另一层 B层。共聚酯A含有0-15重量%的金红石型氧化钛(平均粒径0.1-0.5μm)。 共聚酯B含有10-50重量%的金红石氧化钛。 共聚酯C含有0-15重量%的金红石氧化钛。 共聚酯A,B和C的共聚物的熔点为210-245℃。共聚酯A的聚合物部分的特性粘度(ηaA),共聚酯B的聚合物部分的特性粘度(etaB) 共聚聚酯C的聚合物部分的特性粘度(η)满足以下关系。 0.46 <= etaB = 0.66,| etaA-etaB | <0.15,| etaC-etaB | <0.15和| etaA-etaC | <0.15。 整个层叠膜的表观密度(rho)与计算出的密度(rho0)的比例满足以下公式:0.75 <= rho / rho0 <= 1.00。 计算出的密度(rho0)由各共聚酯的聚合物部分的密度,金红石型氧化钛的密度,各层的厚度,各共聚酯中的金红石型氧化钛的浓度以及共聚酯层的数量来计算。
    • 48. 发明授权
    • Disc metal mold and recorded disc
    • 圆盘金属模具和记录盘
    • US5851620A
    • 1998-12-22
    • US769592
    • 1996-12-18
    • Hiroshi NakajimaTetsuya HasegawaTakafumi Niwa
    • Hiroshi NakajimaTetsuya HasegawaTakafumi Niwa
    • B29C45/26B29L17/00G11B7/26B32B3/00
    • B29C45/2632B29C2045/264Y10S428/913Y10S430/146Y10T428/21
    • Improved disc metal mold provides an improved disc without a ring groove thereon. The improved disc metal mold has a fixed metal mold section and a movable metal mold section for forming a cavity therebetween. One of the fixed and movable metal molds has a stamper having an information signal surface on which an information signal is formed in a form of pits, wherein a fused resin is injected into the cavity to form a disc substrate having a center through hole at the center thereof. The disc metal mold includes the stamper having an center hole at a center thereof for retaining the stamper itself and a retainer for retaining the stamper to engage with the center hole of the stamper. The retainer has a slightly larger diameter at a top surface thereof than a diameter of the center hole of the stamper so that the top surface of the retainer is approximately flush with the information signal surface of the stamper by causing the top end thereof to engage with the center hole of the stamper. Thus, it is possible to provide a recorded disc having a seamless flush information surface without ring groove.
    • 改进的圆盘金属模提供了一种改进的盘,其上没有环槽。 改进的圆盘金属模具具有用于在其间形成空腔的固定金属模具部分和可动金属模具部分。 固定和可移动的金属模具中的一个具有一个具有信息信号表面的压模,信息信号以凹坑的形式形成在其上,其中将熔融树脂注入空腔中以形成具有中心通孔的盘基片 中心。 盘形金属模具包括压模,其中心具有用于保持压模本身的中心孔和用于保持压模以与压模的中心孔接合的保持器。 保持器在其顶表面处具有比压模的中心孔的直径稍大的直径,使得保持器的顶表面通过使其顶端与压模的顶端接合而与压模的信息信号表面大致齐平 压模的中心孔。 因此,可以提供具有无环槽的无缝冲洗信息表面的记录盘。