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122 条记录 (耗时 0.025 秒)

    VIBRATION REDUCTION IN LARGE DIESEL ENGINES
    2.
    发明公开
    VIBRATION REDUCTION IN LARGE DIESEL ENGINES 有权
    减振大型柴油机

    公开(公告)号：EP1766215A1

    公开(公告)日：2007-03-28

    申请号：EP05748776.1

    申请日：2005-06-17

    申请人： MAN B & W Diesel A/S

    发明人： JENSEN, Kim ,  RØNNEDAL, Per ,  PREEM, Michael

    IPC分类号： F02D41/14 ,  F02D35/02

    CPC分类号： F02D35/023 ,  F02D41/1498 ,  F02D41/3836 ,  F02D41/401 ,  F02D41/403 ,  F02D2041/288 ,  F02D2250/28 ,  Y02T10/44

    摘要： The method comprises controlling the fuel injection system and/or the exhaust system to control the cylinder pressure at predetermined frequencies. In particular the method comprises controlling the fuel injection system to initiate fuel injection by gradually increasing the fuel injection rate. The pressure is calculated or measured, and a frequency analysis such as an FFT analysis can be performed to determine the pressure component at each frequency. A mathematical model is used to determine the resulting vibration at each frequency. By proper control of the fuel injection, and in particular the initial phase thereof, a smoother pressure curve with less high-frequency content and/or reduced maximum pressure can be achieved. It is thereby possible to control the frequency content of the cylinder pressure, and predetermined frequencies can be suppressed.

    ANTRIEBSANLAGE FÜR MARITIME OBJEKTE
    4.
    发明授权
    ANTRIEBSANLAGE FÜR MARITIME OBJEKTE 有权
    驱动系统，海上物体

    公开(公告)号：EP1368227B1

    公开(公告)日：2005-12-21

    申请号：EP02724226.2

    申请日：2002-03-12

    申请人： MAN B & W Diesel A/S

    发明人： GALLIN, Constantin, M. ,  NIELSEN, Jens, Ring ,  MOLLER, Erik

    IPC分类号： B63H21/20 ,  B63H5/10 ,  B63H23/24 ,  B63J3/02

    CPC分类号： B63H5/10 ,  B63H3/06 ,  B63H21/20 ,  B63H23/24 ,  B63J3/02 ,  F02F2007/0097 ,  Y02T70/5236

    摘要： The invention relates to a hybrid propulsion system for maritime craft. The aim of the invention is to provide the capability to adapt the power to suit individual cases and to guarantee a high degree of safety and economic efficiency as a whole. To achieve this, the system is provided with at least two contra-rotating propellers (1, 2) that are located coaxially one behind the other and can be driven simultaneously or alternately, each mounted on an assigned shaft (5, 13). The shaft (13) assigned to the front propeller (2) is configured as a hollow shaft that is penetrated by the shaft (5) assigned to the rear propeller (1). The shaft (5) assigned to the rear propeller (1) can be driven by means of at least one on-board primary motor (3) and the shaft (13) assigned to the front propeller (2) can be driven by means of at least one designated electromotor (10), which can be selectively supplied with electric current by a shaft-driven alternator (18) that is additionally driven by the primary motor (3) and/or by on-board auxiliary power units (20). The total advance power obtained when the auxiliary power units (20) and the primary motor (3) are simultaneously activated exceeds the maximum advance power that can be generated by the primary motor.

    HUBKOLBENMASCHINE
    5.
    发明授权
    HUBKOLBENMASCHINE 有权

    公开(公告)号：EP1366314B1

    公开(公告)日：2005-08-17

    申请号：EP02729926.2

    申请日：2002-02-12

    申请人： MAN B & W Diesel A/S

    发明人： FOGH, Jesper, Weis

    IPC分类号： F16J9/14 ,  F16J9/22

    CPC分类号： F16J9/14 ,  F02F2007/0097 ,  F16J9/22

    摘要： The invention relates to a reciprocating engine comprising at least one piston (7) housed in a cylinder (2), said piston being provided with at least one piston ring (10) arranged in an allocated piston ring groove (8), which has ends pieces (12, 13) that engage with one another in the form of a groove and a spring and form an outer peripheral surface cooperating with a running surface located on the cylinder side which traverses the periphery without any gaps. The invention aims at making it possible for said motor to operate as long as possible with little wear and enabling high operating facility. This is achieved in that at least one end piece (12) is provided with at least one radial through recess (18) whose open cross section is influenced by the mutual relative movement of the end pieces (12, 13) that engage with one another.

    A NOZZLE FOR A FUEL VALVE IN A DIESEL ENGINE, AND A METHOD OF MANUFACTURING A NOZZLE
    6.
    发明公开
    A NOZZLE FOR A FUEL VALVE IN A DIESEL ENGINE, AND A METHOD OF MANUFACTURING A NOZZLE 有权
    EINSPRITZD SEFÜREIN KRAFTSTOFFVENTIL IN EINEM DIESELMOTOR UND HERSTELLUNGSVERFAHREN F R EINE EINSPRITZD SE

    公开(公告)号：EP1556608A1

    公开(公告)日：2005-07-27

    申请号：EP03750383.6

    申请日：2003-10-03

    申请人： MAN B & W Diesel A/S

    发明人： HOEG, Harro, Andreas

    IPC分类号： F02M61/18

    CPC分类号： B22F7/08 ,  B22F7/064 ,  B23K35/304 ,  F02M61/10 ,  F02M61/166 ,  F02M61/18

    摘要： A nozzle (1) for a fuel valve (2) in a diesel engine is composed of a central member (11) with a lower section and of a jacket (10), the jacket and the central member being brazed together. The jacket (10) is made of a corrosion-resistant alloy, and the central member (11) is made of an iron-based alloy with a fatigue strength σA of at least ± 500 MPa.

    摘要翻译： 用于柴油发动机中的燃料阀（2）的喷嘴（1）由具有下部和夹套（10）的中心部件（11）组成，夹套和中心部件钎焊在一起。 护套（10）由耐腐蚀合金制成，中心构件（11）由疲劳强度σA至少为±500MPa的铁基合金制成。

    BEARING
    7.
    发明公开
    BEARING 有权
    轴承

    公开(公告)号：EP1446588A1

    公开(公告)日：2004-08-18

    申请号：EP01989471.6

    申请日：2001-11-14

    申请人： MAN B & W Diesel A/S

    发明人： BAU-MADSEN, Niels, Kristian

    IPC分类号： F16C33/10 ,  F16C9/02

    CPC分类号： F16C33/1075 ,  F16C3/08 ,  F16C9/02 ,  F16C9/04 ,  F16C17/022

    摘要： A main-, crank pin- or cross head bearing 1 for an internal combustion engine comprising an upper shell 4, said shells 3, 4 being provided with at least one indentation in their bearing surface 20 to reduce peak oil film pressure and increase minimum oil film thickness in selected areas.

    摘要翻译： 用于内燃机的主曲轴销或曲轴销轴承1包括上壳体4，所述壳体3,4在它们的支承表面20中设置有至少一个凹口以降低油膜峰值压力并增加最小油量 选定区域的薄膜厚度。

    WEAR-RESISTANT SLIDING MEMBER
    8.
    发明公开
    WEAR-RESISTANT SLIDING MEMBER 有权
    VERSCHLEISSFESTES GLEITELEMENT

    公开(公告)号：EP1375695A1

    公开(公告)日：2004-01-02

    申请号：EP02703886.8

    申请日：2002-02-22

    申请人： Nippon Piston Ring Co., Ltd. ,  MAN B & W Diesel A/S

    发明人： TAKAMURA, Hiroyuki, Nippon Piston Ring Co., Ltd

    IPC分类号： C23C4/04

    CPC分类号： C23C4/04 ,  C23C4/06

    摘要： A wear-resistant sliding member (10) which comprises a base metal (M) and a sprayed coating (C) formed by thermally spraying a mixed powder comprising, by mass, 30 to 70% of a molybdenum powder, 10 to 40% of a nickel-chrome alloy powder, 5 to 40% of a ceramics powder, and 2 to 15% of a solid lubricant onto a sliding surface of the base metal. The wear-resistant sliding member is excellent in wear-resistance and resistance to scuffing, and thus can be utilized in a large-sized marine diesel engine, which is used under severe conditions.

    摘要翻译： 一种耐磨滑动构件（10），其包括基体金属（M）和通过热喷涂混合粉末形成的喷涂层（C），所述混合粉末包含质量为30〜70％的钼粉末，10〜40％ 镍铬合金粉末，5〜40％的陶瓷粉末和2〜15％的固体润滑剂涂覆在贱金属的滑动面上。 该耐磨滑动构件的耐磨性和耐擦伤性优异，因此可用于在恶劣条件下使用的大型船用柴油发动机。

    HUBKOLBENBRENNKRAFTMASCHINE
    9.
    发明授权
    HUBKOLBENBRENNKRAFTMASCHINE 失效
    往复式内燃机

    公开(公告)号：EP0975905B1

    公开(公告)日：2003-05-14

    申请号：EP98904152.0

    申请日：1998-01-28

    申请人： MAN B & W Diesel A/S

    发明人： ANDERSEN, Erling, Bredal ,  MOCZULSKI, Lech

    IPC分类号： F16J9/12

    CPC分类号： F16J9/12 ,  F02F2007/0097

    摘要： The invention relates to an internal combustion piston engine, specially a powerful diesel engine, comprising at least one piston (1) arranged in a cylinder (2), said piston being provided with peripheral grooves (6). Each groove is assigned an open piston ring (3) which is at least partially stressed and located on the cylinder (2). The ends (10, 11) of said ring define a slit (12). Long piston ring service lives can be obtained by providing at least the top piston ring (3) with several grooves (13) on its outer periphery.