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81. 发明专利

JP2002127985A ICE BREAKER, AND METHOD OF IMPROVING VESSEL TYPE 失效
公开(公告)号：JP2002127985A
公开(公告)日：2002-05-09
申请号：JP2000322481
申请日：2000-10-23
申请人： NIPPON KOKAN KK
发明人： KISHI SUSUMU , MASUDA SEIJI
IPC分类号： B63B1/40 , B63B35/08
摘要： PROBLEM TO BE SOLVED: To provide an ice breaker capable of reducing wave drag, and securing ice breaking ability, and a method of improving that. SOLUTION: The sum of a thickness of an ice plate and aground height of a hull onto the ice plate due to a motion of the hull is set as dice, the minimum flare angle on a frame line in a range from a draft line to the depth dice in navigation at an ordinary water level is set as βMIN, and the minimum flare angle on the frame line in a range of a bottom under the depth dice is set as θMIN, then the frame line is formed to satisfy βMIN

82. 发明专利

JP2001219890A ICEBREAKER 失效
公开(公告)号：JP2001219890A
公开(公告)日：2001-08-14
申请号：JP2000029965
申请日：2000-02-08
申请人： NIPPON KOKAN KK
发明人： KISHI SUSUMU , MASUDA SEIJI
IPC分类号： B63B1/06 , B63B1/40 , B63B35/08
摘要： PROBLEM TO BE SOLVED: To provide an icebreaker capable of improving propelling performance even in the open water. SOLUTION: In this icebreaker 1, a plane shape is a semielliptic shape or a polygonal shape so that the installing height becomes a range up to the height of 1/2 of draft from the ship's bottom 2, and a wave making bulb 3 having a ship length directional cross-sectional shape being a wing shape is installed on the board side or the ship's bottom 1 of a bow part.

83. 发明专利

JP2001180581A ICE BREAKER, AND OPERATION METHOD THEREOF 失效
公开(公告)号：JP2001180581A
公开(公告)日：2001-07-03
申请号：JP36610199
申请日：1999-12-24
申请人： NIPPON KOKAN KK
发明人： YAMAUCHI YUTAKA , KISHI SUSUMU , KAMEZAKI KAZUHIKO
IPC分类号： B63B35/08
摘要： PROBLEM TO BE SOLVED: To provide an ice breaker, and an operation method thereof capable of conducting safe navigation and effective ice breaking of the ice breaker in a sea zone where accumulation of snow exists on an ice plate. SOLUTION: A water storage tank 12 which is also capable of regulating the trim of a hull at a higher position than a draft line 17 in a bow part, a drain mechanism 14 connected to its bottom part, a brine lifting pump 11, and a water injecting passage 22 for injecting water into the water storage tank 12 are provided. The drain mechanism 14 is composed of a drain port 13 and a switching valve 15, the drain port 13 is provided at a height of a specifies distance from the draft line 17, and a movable current plate 19 is provided in it, so regulation of a discharge direction and current regulation of discharged water are conducted. The drain port 13 is formed as a slit, and it is disposed along a flat surface form of the bow part. Water is injected into the water storage tank 12 to apply pressure downward to accumulated snow 8 on an ice plate 3, brine 12a is then discharged from the water storage tank 12 by gravitational fall onto the ice plate 3 while it is retracted, and an ice breaker 1 having the bow part on the ice plate 3 is released from the ice plate 3 to retract.

84. 发明专利

JPH112575A ICE-PROPELLER INTERACTION TESTING DEVICE AND METHOD OF MOLDING TEST ICE PLATE USED THEREFOR 失效
公开(公告)号：JPH112575A
公开(公告)日：1999-01-06
申请号：JP15367597
申请日：1997-06-11
申请人： ISHIKAWAJIMA HARIMA HEAVY IND
发明人： KATO KAZUYUKI
IPC分类号： G01L5/00 , B63B21/56 , B63B35/08
摘要： PROBLEM TO BE SOLVED: To provide an ice-propeller interaction testing device that can make ice piece of known size collide with a propeller at known speed. SOLUTION: The water surface S is covered with test ice plates 1 with regular cracks 2 previously formed. An ice feeder is formed having a submerged flat bottom part 21, and an inclined part 22 inclining forward so as to lean forward onto ice from the bottom part 21. A tested propeller P is arranged behind this ice feeder. With this ice feeder towed, the test ice plates 1 are broken following the cracks 2, and a load when the test ice pieces collide with the propeller P is measured. The test ice pieces of the same shape and the same size are produced in regular order and fed to the rear of the ice feeder in regular order.

85. 发明专利

JP2547321B2 失效
公开(公告)号：JP2547321B2
公开(公告)日：1996-10-23
申请号：JP25457586
申请日：1986-10-25
申请人： AKUAMASUTAA RAUMA OY
发明人： ANTEI KAREBI HENRIKU JARUBI , JUHA AKUSERI HEIKINHEIMO , ERUKI UEIKO ERIASU HIRUONEN
IPC分类号： B63H1/18 , B63B35/08 , B63H1/28 , B63H5/07 , B63H5/16

86. 发明专利

JPH0868883A WATER SURFACE PITCHING PREVENTION BOARD OF PRESSURIZER IN NUCLEAR REACTOR FOR SHIP 失效
公开(公告)号：JPH0868883A
公开(公告)日：1996-03-12
申请号：JP20684294
申请日：1994-08-31
申请人： ISHIKAWAJIMA HARIMA HEAVY IND
发明人： KASABA MICHIHIRO
IPC分类号： G21C1/00 , B63B35/08 , G21C13/024 , G21C15/02 , G21D1/00
摘要： PURPOSE: To easily prevent cooling water in a pressurizer from overflowing by placing between the side and bottom boards of the pressurizer partition boards whose upper ends stick out upward from the surface of cooling water and installing between the partition boards porous boards where numerous cooling water passing holes are drilled. CONSTITUTION: A water surface pitching prevention board 4 is constituted by installing partition boards 6 whose upper ends stick out upward from the surface of cooling water at equal intervals and radically between side boards 2 and bottom boards 3 of a pressurizer placed in the axial center inside a pressure vessel of a nuclear reactor and laying horizontally like a bridge between the partition boards 6 horizontally porous boards 7 where numerous passing holes 8 are drilled. Even when a vacuum vessel tilts, the porous boards 7 of the prevention board 4 controls the flow of cooling water toward the tilting direction and prevents the cooling water from overflowing the partition boards 6 into divided parts in the tilting direction. During the normal operation, moreover, the original functions of the pressurizer are not damaged because the cooling water heated by a heater easily moves through passing holes toward the side of the water surface (upward) and jets of cooling water are poured directly over it.

87. 实用新型

JPH0620719Y2 失效
公开(公告)号：JPH0620719Y2
公开(公告)日：1994-06-01
申请号：JP12501385
申请日：1985-08-13
IPC分类号： B63B35/08 , B63H5/15 , B63H5/16

88. 发明专利

JPH0523993B2 失效
公开(公告)号：JPH0523993B2
公开(公告)日：1993-04-06
申请号：JP8543385
申请日：1985-04-23
申请人： NIPPON KOKAN KK
发明人： SATO TADAHARU
IPC分类号： B63B13/00 , B01D35/02 , B63B35/08 , B63H21/38

89. 实用新型

JPH057596U 失效
公开(公告)号：JPH057596U
公开(公告)日：1993-02-02
申请号：JP2524792
申请日：1992-04-20
IPC分类号： B63B35/08 , B63B35/44 , B63B43/06

90. 实用新型

JPH053439Y2 失效
公开(公告)号：JPH053439Y2
公开(公告)日：1993-01-27
申请号：JP12501285
申请日：1985-08-13
IPC分类号： B63B35/08 , B63H5/16 , B63H25/38

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