JPH0639767Y2 - Cylindrical water strainer for ships - Google Patents
Cylindrical water strainer for shipsInfo
- Publication number
- JPH0639767Y2 JPH0639767Y2 JP1990113297U JP11329790U JPH0639767Y2 JP H0639767 Y2 JPH0639767 Y2 JP H0639767Y2 JP 1990113297 U JP1990113297 U JP 1990113297U JP 11329790 U JP11329790 U JP 11329790U JP H0639767 Y2 JPH0639767 Y2 JP H0639767Y2
- Authority
- JP
- Japan
- Prior art keywords
- strainer
- cylinder
- strain
- water
- casing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Description
【考案の詳細な説明】 [産業上の利用分野] 本考案は船用筒形水こしに関する。さらに詳しくは、船
の水管系に使用する筒形水こしに関する。ここにいう船
の水管系には、船の機関室内に装備される海水取入れ用
管路のほか、ビルジ吸引用管路、バラスト吸引用管路な
どがある。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a tubular water strainer for ships. More specifically, it relates to a cylindrical strainer used in a water pipe system of a ship. The water pipe system of the ship referred to here includes a bilge suction pipe line, a ballast suction pipe line, etc. in addition to a seawater intake pipe line installed in the engine room of the ship.
[従来の技術] 従来の船用筒形水こしに関しては、日本工業規格F7121
に記載されたものがある。[Prior Art] Japanese Industrial Standard F7121
There is one described in.
この水こし50を第5図に基づき説明する。The water strainer 50 will be described with reference to FIG.
1はケーシングで、有底筒状のこし筒収容室2を有し、
その両側には、流入口3と排出口4が形成されている。
前記収容室2内には、こし筒20が装着され、収容室2の
上面は蓋5で密閉されている。Reference numeral 1 is a casing, which has a bottomed cylindrical strained tube housing chamber 2,
An inflow port 3 and a discharge port 4 are formed on both sides thereof.
A strain tube 20 is mounted in the storage chamber 2, and the upper surface of the storage chamber 2 is sealed with a lid 5.
前記こし筒20は金属製の有底筒状の容器であり、上部一
側面に開口21が形成されている。この開口21の内径はケ
ーシング1の流入口3の内径とほぼ同じである。また、
こし筒20の壁面には、こし孔22が多数穿孔されている。
こし孔22の内径は通常8mm前後である。The strainer tube 20 is a bottomed cylindrical container made of metal, and has an opening 21 formed on one side surface at the top. The inner diameter of the opening 21 is almost the same as the inner diameter of the inlet 3 of the casing 1. Also,
A large number of strain holes 22 are formed in the wall surface of the strain cylinder 20.
The inner diameter of the strain hole 22 is usually around 8 mm.
[考案が解決しようとする課題] 従来の水こし50では、比較的大きなゴミ等を除去するこ
とができたが、内径8mmのこし孔22を簡単に通り抜ける
ような比較的小さなゴミや微生物等は除去することがで
きなかった。そのため、水管系に介装されているポンプ
等の保護が充分でないという問題があった。[Problems to be solved by the invention] With the conventional water strainer 50, relatively large dust and the like could be removed, but relatively small dust and microorganisms that easily pass through the strain hole 22 with an inner diameter of 8 mm can be removed. I couldn't. Therefore, there is a problem that the protection of the pump and the like installed in the water pipe system is not sufficient.
なお、こし孔の内径を小さくすれば、小さなゴミや微生
物等も除去することができるはずであるが、そうすると
管路抵抗が極端に大きくなるので、流体の水こし通過面
積を大きくしなければならず、そのため大容量の水こし
を設置したり、こし孔の目づまりが、頻繁に生じ、度々
清掃しなければならないという問題点を派生することに
なる。It should be possible to remove small dust and microorganisms by reducing the inner diameter of the strain hole, but this will increase the conduit resistance extremely, so it is necessary to increase the passage area for the fluid strainer. Therefore, a large-capacity strainer is often installed, and the clogging of the strainer holes frequently occurs, resulting in the problem that frequent cleaning is required.
したがって、小さなゴミや微生物等の除去と水管系の管
路抵抗の増大を避けるという両命題は二律背反であっ
て、これまでいかいなる水こしにおいても達成されてい
なかったのである。Therefore, both the propositions of removing small debris and microorganisms and avoiding an increase in the conduit resistance of the water pipe system are antinomy and have never been achieved in any kind of water strainer.
そこで本考案は、小さなゴミや微生物等を効果的に除去
しながら、管路抵抗の増大を避けることができる船用筒
形水こしを提供することを目的とする。Therefore, an object of the present invention is to provide a cylindrical water strainer for a ship, which is capable of avoiding an increase in pipeline resistance while effectively removing small dust and microorganisms.
[課題を解決するための手段] 本考案の船用筒形水こしは、 流体の流入口と排出口との間にこし筒収容室が形成され
たケーシングと、 前記ケーシングの収容室内に装着され、多数のこし孔が
壁面に穿孔された筒型の外側こし筒と、前記外側こし筒
の内部に装着された内側こし筒とからなり、前記こし筒
が、内側こし筒の前面であってケーシングの流入口に対
面する部位に大径の流入孔が穿孔され、こし筒の後面お
よび底部に微少径のこし孔が穿孔されており、外側こし
筒と内側こし筒の間には流体の全部が流れても配管抵抗
が問題とならないよう充分な隙間が形成されていること
を特徴とする。[Means for Solving the Problems] A cylindrical water strainer for a ship according to the present invention includes a casing having a strainer cylinder storage chamber formed between a fluid inlet and a discharge port, and a casing installed in the casing. It consists of a cylindrical outer strainer cylinder with a number of strain holes formed in the wall surface and an inner strainer cylinder mounted inside the outer strainer cylinder, the strainer cylinder being the front of the inner strainer cylinder and the casing flow. A large-diameter inflow hole is drilled in the area facing the inlet, and a small-diameter strain hole is drilled in the rear and bottom of the strainer cylinder, even if all the fluid flows between the outer strainer and the inner strainer. It is characterized in that a sufficient gap is formed so that pipe resistance does not become a problem.
また、本考案では、内側こし筒の前面であってケーシン
グの流入口に対面する部位に流入孔を穿孔するのが好ま
しい。Further, according to the present invention, it is preferable to form an inflow hole in a portion of the front surface of the inner straining tube that faces the inlet of the casing.
[作用] 本考案においては、ケーシングの流入口から入った水
(海水を含む)は、まず外側こし筒内に流入し、一部の
水はさらに内側こし筒の流入孔から流入する。内側こし
筒に入った微小径のこし孔で濾過されるので、小さなゴ
ミや微生物等も除去された状態で外側こし筒を通り、さ
らにケーシングの排出口から出ていく。そして外側こし
筒と、内側こし筒の間の隙間を流れる水は、外側こし筒
で濾過されて排出される。[Operation] In the present invention, the water (including seawater) entering from the inlet of the casing first flows into the outer strainer cylinder, and a part of the water further flows from the inflow hole of the inner strainer cylinder. Since it is filtered through a small diameter strain hole in the inner strainer, it passes through the outer strainer with small dust and microbes removed, and then exits from the outlet of the casing. Then, the water flowing through the gap between the outer strainer and the inner strainer is filtered by the outer strainer and discharged.
以上のように、流入した水は、全量が外側こし筒を通る
ので、従来例と同様に大きなゴミは除去され、さらに一
部の水は内側こし筒を通るので実用上差し支えない程度
に小さなゴミや微生物等も除去される。そのため水管系
のポンプ等を損傷させたり、熱交換器のチューブにつま
ったり、たまったりすることがほとんどない。そして、
流水量の一部は内側こし筒に入らず、外側こし筒のみ通
って出ていくので、管路抵抗の異常な増大を避けること
ができる。As described above, since all the inflowing water passes through the outer strainer, large dust is removed as in the conventional example, and some of the water passes through the inner strainer, which is small enough to be practically acceptable. And microorganisms are also removed. Therefore, there is almost no possibility of damaging the water pipe system pump or the like, or clogging or accumulating in the tube of the heat exchanger. And
Part of the amount of flowing water does not enter the inner straining cylinder but goes out only through the outer straining cylinder, so that it is possible to avoid an abnormal increase in the conduit resistance.
また、内側こし筒の流入孔がケーシングの流入口に対面
する部位に穿孔されているので小さなゴミや微生物等が
水の流れにのり、方向転換することなくそのまま流入孔
に侵入するので、全水量中の微生物等のうち内側こし筒
で捕獲しうる微生物等の分量の割合は大きいものであ
る。In addition, since the inflow hole of the inner strainer is drilled in the part facing the inflow port of the casing, small dust and microorganisms can flow into the water and enter the inflow hole as it is without changing the direction. The ratio of the amount of microorganisms and the like that can be captured by the inner strainer among the microorganisms and the like therein is large.
[実施例] つぎに、本考案の実施例を図面に基づき説明する。[Embodiment] Next, an embodiment of the present invention will be described with reference to the drawings.
第4図には本考案の一実施例である水こしAを装備した
水管系Lが示されている。すなわち、本図において、B
は船舶の外板であり、その一部に海水箱Cが設けられて
いる。この海水箱Cと機関室内に装備されたポンプPと
が水管Lで接続されており、水管Lの途中には止弁Vと
本実施例の水こしAが介装されている。FIG. 4 shows a water pipe system L equipped with a strainer A according to an embodiment of the present invention. That is, in this figure, B
Is an outer plate of a ship, and a seawater box C is provided in a part thereof. The seawater box C and a pump P mounted in the engine room are connected by a water pipe L, and a stop valve V and a water strainer A of this embodiment are provided in the middle of the water pipe L.
つぎに、第1〜第2図に基づき水こしAの詳細を説明す
る。なお、同図において第5図に示した従来例と同一部
品には同一符号を付している。Next, the details of the strainer A will be described with reference to FIGS. In the figure, the same parts as those of the conventional example shown in FIG. 5 are designated by the same reference numerals.
ケーシング1には有底筒状のこし筒収容室2が形成さ
れ、その上部両側には流入口3と排出口4が形成されて
いる。また流入口3と排出口4には水管Lに介装するた
めのフランジ6、7が形成されている。収容室2の上面
は開放されており、蓋5が取付けられている。この蓋5
は蓋押え8に螺合された押えボルト9により、収容室2
の上面にガスケット11を介して押し付けられている。ま
た、蓋5の適所にはプラグ12が螺入されている。The casing 1 is provided with a bottomed cylindrical strain tube housing chamber 2, and an inflow port 3 and a discharge port 4 are formed on both sides of the upper portion thereof. Further, flanges 6 and 7 for interposing the water pipe L are formed at the inlet 3 and the outlet 4. The upper surface of the storage chamber 2 is open and the lid 5 is attached. This lid 5
Is held in the storage chamber 2 by a holding bolt 9 screwed into the lid holding 8
Is pressed against the upper surface of the via a gasket 11. Further, a plug 12 is screwed into an appropriate place of the lid 5.
前記収容室2内には外側こし筒20が装着されている。す
なわち、外側こし筒20の上端外周にはリング23が固定さ
れており、それがケーシング1の上部内周に形成された
段付鍔13に嵌められて、外側こし筒20が固定されてい
る。この外側こし筒20は第5図に示した従来のこし筒20
と同様の部品である。したがって、その前面上部には円
形の開口21が形成され、筒壁の全面にはこし孔22が多数
穿孔されている。このこし孔22の内径は、たとえば呼び
径(排出口4の内径を単位mmで表示したもの)40〜100
の水こしのばあい、通常8mmであり、そのこし孔22の総
面積は排出口の断面積の約4〜4.5倍である。なお、開
口21とケーシング1の流入口3との間には鋼製の当て金
24が取付けられている。An outer strainer cylinder 20 is mounted in the accommodation chamber 2. That is, the ring 23 is fixed to the outer circumference of the upper end of the outer strainer 20, and the ring 23 is fixed by being fitted to the stepped collar 13 formed on the inner circumference of the upper portion of the casing 1. This outside strainer cylinder 20 is the conventional strainer cylinder 20 shown in FIG.
It is the same part as. Therefore, a circular opening 21 is formed in the upper part of the front surface, and a large number of strain holes 22 are formed on the entire surface of the cylinder wall. The inner diameter of the strain hole 22 is, for example, the nominal diameter (the inner diameter of the discharge port 4 expressed in mm) 40 to 100.
In the case of the water strainer, it is usually 8 mm, and the total area of the strainer holes 22 is about 4 to 4.5 times the cross-sectional area of the discharge port. Between the opening 21 and the inlet 3 of the casing 1, a steel pad
24 is installed.
前記外側こし筒20の内部には内側こし筒30が装着されて
いる。この内側こし筒30は筒形のこし筒であり、その上
端には円形の開孔付き天板35が設けられている。そし
て、天板35と取手兼用の押え板36を外側こし筒20のリン
グ23にボルト37で締結することにより、内側こし筒30が
取付けられている。内側こし筒30の外径は外側こし筒20
の内径より小さくなっており、内側こし筒30と外側こし
筒20との間には全流体が流れる隙間25が形成されてい
る。An inner strainer cylinder 30 is mounted inside the outer strainer cylinder 20. The inner strainer cylinder 30 is a cylinder-shaped strainer cylinder, and a top plate 35 having a circular opening is provided at the upper end thereof. Then, the top plate 35 and the holding plate 36 that also serves as a handle are fastened to the ring 23 of the outer strainer tube 20 with bolts 37, so that the inner strainer tube 30 is attached. The outer diameter of the inner strain tube 30 is the outer strain tube 20
The inner diameter is smaller than the inner diameter, and a gap 25 through which all the fluid flows is formed between the inner straining cylinder 30 and the outer straining cylinder 20.
この隙間25の大きさは、内側こし筒30を通らず、外側こ
し筒20のみを通る水量を決定するので、管路抵抗を決定
するファクターとなるものであり、また内側こし筒30の
直径は内側こし筒で、濾過する水量を決定するファクタ
ーとなるものである。これらの数値は所望する濾過性能
に基づき設定すればよい。The size of the gap 25 is a factor that determines the conduit resistance, because it determines the amount of water that does not pass through the inner straining cylinder 30 but only through the outer straining cylinder 20, and the diameter of the inner straining cylinder 30 is The inner strainer is a factor that determines the amount of water to be filtered. These numerical values may be set based on the desired filtration performance.
内側こし筒30の前面であって、ケーシング1の流入口3
に対面する部位には流入孔31が穿孔されている。この流
入孔31は、流入口3から入る水に対し直角に面している
ので、小さなゴミや微生物等が侵入しやすいものであ
る。そして、流入孔31の孔径と数は内側こし筒30で濾過
する水量を決定するファクターの一つであり、流入孔31
の総面積が多いほど濾過水量を増やすことができる。同
時に流入孔31の総面積は外側こし筒20でのみ濾過する水
量を決めるファクターでもあり、その数値は、濾過すべ
き微生物等の量や管路抵抗の数値などから最適の値に決
めればよい。本実施例では孔径20mmの流入孔を20〜25個
穿孔している。The front side of the inner strainer cylinder 30 and the inlet 3 of the casing 1.
An inflow hole 31 is bored in a portion facing to. Since the inflow hole 31 faces the water entering from the inflow port 3 at a right angle, small dust, microorganisms and the like can easily enter. The diameter and number of the inflow holes 31 are one of the factors that determine the amount of water filtered by the inner strainer 30.
The larger the total area is, the more the filtered water amount can be increased. At the same time, the total area of the inflow holes 31 is also a factor that determines the amount of water filtered only by the outer strainer 20, and its numerical value may be determined to be an optimum value from the amount of microorganisms to be filtered and the numerical value of the conduit resistance. In this embodiment, 20 to 25 inflow holes having a hole diameter of 20 mm are bored.
内側こし筒30の後面、すなわち第2図に符号Zで示して
いるこし筒の両側から背面にかけた領域と底部には、微
少径のこし孔32が穿孔されている。このこし孔32の孔径
は、小さなゴミや微生物等を通過させず捕獲しうる大き
さでなければならず、本実施例では孔径を1mmに設定し
ている。こし孔32の孔径と穿孔数、すなわちこし孔32の
総面積も濾過すべき微生物等の量や管路抵抗を決定する
ファクターであり、所望する濾過性能から最適値を決め
ればよい。A small diameter strain hole 32 is formed in the rear surface of the inner strainer cylinder 30, that is, in the region from the both sides of the strainer cylinder to the back surface, which is denoted by Z in FIG. The hole diameter of the strain hole 32 must be such that small dust and microorganisms can be captured without passing through it, and in this embodiment, the hole diameter is set to 1 mm. The pore diameter and the number of perforations of the strain holes 32, that is, the total area of the strain holes 32 is also a factor that determines the amount of microorganisms or the like to be filtered and the line resistance, and the optimum value may be determined from the desired filtration performance.
内側こし筒30の内部には、つぎの二種類の邪魔板33、34
が設けられている。邪魔板33は長方形の板であり流入孔
31の裏側に設けられ、水の流れの方向(第2図の矢印
a)に対し斜めに向けられている。このため、流入孔31
から入った水は第3図に矢印cで示すように、内側こし
筒30内部で螺旋状に旋回させられ、こし孔32に均一に当
てられる。Inside the inner strain tube 30, the following two types of baffles 33, 34 are provided.
Is provided. The baffle plate 33 is a rectangular plate and has an inflow hole.
It is provided on the back side of 31 and is directed obliquely to the direction of water flow (arrow a in FIG. 2). Therefore, the inflow hole 31
The water entering from the inside is spirally swirled inside the inner strainer tube 30 and uniformly applied to the strainer holes 32 as shown by an arrow c in FIG.
また、邪魔板34は、略半円状の板であり邪魔板33の下方
において、水平に取付けられている。そして邪魔板34の
先端縁は、やや下方に折り曲げられている。この邪魔板
34は、沈澱した小さなゴミや微生物等が再浮上して、流
入孔31から出ないようにするために設けられている。The baffle plate 34 is a substantially semicircular plate, and is horizontally attached below the baffle plate 33. The tip edge of the baffle plate 34 is bent slightly downward. This baffle
34 is provided in order to prevent the small dust and microorganisms that have settled up from coming out of the inflow hole 31.
つぎに、本実施例の濾過作用を第1図および第3図を参
照しながら説明する。Next, the filtering action of this embodiment will be described with reference to FIGS. 1 and 3.
海水が矢印aで示すように取り入れられると、まず外側
こし筒20内に入り、一部は内側こし筒30の流入孔31から
その内部に入り、残部は内側こし筒30の周囲の隙間25を
通って、外側こし筒20のみで濾過される。When seawater is taken in as indicated by the arrow a, it first enters the outer strainer cylinder 20, part of which enters the inside through the inflow hole 31 of the inner strainer cylinder 30, and the rest of the gap 25 around the inner strainer cylinder 30. Pass through and filter through the outer strainer tube 20 only.
内側こし筒30に入った水は邪魔板3で螺旋状に旋回させ
られ(矢印c)、その間、小さなゴミや微生物はこし孔
32を通過できないので、内側こし筒30の底部に沈澱させ
られる。そして、一度沈澱した微生物等は邪魔板34によ
り浮上を妨げられるので、内側こし筒30内のこし孔32が
詰まることは極力避けられる。そして、内側こし筒30の
こし孔32にて濾過されて出た水は、隙間25を流通し、外
側こし筒20を流通して、排出口4からポンプPに送られ
る。The water that has entered the inner strainer tube 30 is swirled in a spiral shape by the baffle plate 3 (arrow c), while small dust and microorganisms are strained through the strainer hole.
Since it cannot pass through 32, it is deposited at the bottom of the inner strainer tube 30. Since the microorganisms and the like that have once settled are prevented from floating by the baffle plate 34, it is possible to avoid clogging of the strain hole 32 in the inner strainer tube 30 as much as possible. Then, the water filtered out through the straining hole 32 of the inner straining tube 30 flows through the gap 25, flows through the outer straining tube 20, and is sent from the discharge port 4 to the pump P.
一方、矢印eで示すように内側こし筒30の周囲の隙間25
を通る水は外側こし筒20のみで濾過されて矢印bで示す
ように排出される。このように、内側こし筒30を通らな
いで水が流れる隙間25があることにより、管路抵抗の増
大を実用上許容できるところまで抑えることができる。On the other hand, as indicated by the arrow e, the gap 25 around the inner strainer tube 30
The water passing through is filtered only by the outer strainer 20 and discharged as indicated by arrow b. As described above, since there is the gap 25 through which water flows without passing through the inner straining tube 30, it is possible to suppress the increase in the pipeline resistance to a practically allowable level.
[考案の効果] 本考案よれば、従来不可能であった小さなゴミや微生物
等を効果的に除去することができ、しかも、管路抵抗の
増大を極力抑えるという二律背反した命題を解決するこ
とができる。[Advantage of Invention] According to the present invention, it is possible to effectively remove small dust, microorganisms and the like, which have been impossible in the past, and to solve the contradictory proposition that the increase in duct resistance is suppressed as much as possible. it can.
第1図は本考案の一実施例にかかわる船用筒形水こしA
の断面図、第2図は第1図に示された内側こし筒30の天
板33を省略して示す一部破断斜視図、第3図は同実施例
の水こしAの濾過作用を示す説明図、第4図は同実施例
の水こしAを取付けた水管系の説明図、第5図は従来の
船用筒形水こしの断面図である。 (図面の主要符号) 1:ケーシング 3:流入口 4:排出口 20:外側こし筒 21:開口 22:こし孔 30:内側こし筒 31:流入孔 32:こし孔 33:邪魔板 34:邪魔板FIG. 1 is a cylindrical water strainer A for a ship according to an embodiment of the present invention.
2 is a partially cutaway perspective view showing the inner strainer cylinder 30 shown in FIG. 1 with the top plate 33 omitted, and FIG. 3 shows the filtering action of the strainer A of the same embodiment. Explanatory drawing, FIG. 4 is explanatory drawing of the water pipe system which attached the strainer A of the same Example, and FIG. 5 is sectional drawing of the conventional cylindrical water strainer for ships. (Main symbols in the drawing) 1: Casing 3: Inlet 4: Outlet 20: Outer strain cylinder 21: Opening 22: Strain hole 30: Inner strain cylinder 31: Inflow hole 32: Strain hole 33: Baffle plate 34: Baffle plate
Claims (3)
室が形成されたケーシングと、前記ケーシングの収容室
内に装着され、多数のこし孔が壁面に穿孔された筒形の
外側こし筒と、 前記外側こし筒の内部に装着された内側こし筒とからな
り、 前記内側こし筒が、そのこし筒の前面であってケーシン
グの流入口に対面する部位に大径の流入孔が穿孔され、
こし筒の後面および底部に微小径のこし孔が穿孔されて
おり、 外側こし筒と内側こし筒の間には流体の全部が流れても
配管抵抗が問題とならないような充分な隙間が形成され
ている ことを特徴とする船用筒形水こし。1. A casing having a strain-cylinder accommodating chamber formed between a fluid inlet and a discharge port, and a cylindrical outer strainer mounted in the accommodating chamber of the casing and having a number of strain holes formed in its wall surface. A cylinder and an inner strainer mounted inside the outer strainer, wherein the inner strainer has a large-diameter inflow hole drilled in a portion of the front face of the strainer that faces the inlet of the casing. Is
There are small holes in the rear and bottom of the strainer cylinder, and there is a sufficient gap between the outer strainer cylinder and the inner strainer cylinder so that pipe resistance does not become a problem even if all the fluid flows. A cylindrical water strainer for ships.
る壁面の内側に、流入した流体をこし筒内で旋回させる
ための邪魔板を設けたことを特徴とする請求項1記載の
船用筒形水こし。2. The baffle plate for swirling the inflowing fluid in the inside cylinder is provided inside the wall surface where the inflow hole is bored, in the inside cylinder. A cylindrical strainer for ships.
前記流入口の下側に、こし筒内に沈殿した物質の浮上を
防止する邪魔板を設けたことを特徴とする請求項1記載
の船用筒形水こし。3. The baffle plate is provided inside the strainer cylinder and below the inflow port, the baffle plate for preventing the substance settled in the strainer cylinder from floating. 1. A cylindrical water strainer for ships according to 1.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1990113297U JPH0639767Y2 (en) | 1990-10-29 | 1990-10-29 | Cylindrical water strainer for ships |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1990113297U JPH0639767Y2 (en) | 1990-10-29 | 1990-10-29 | Cylindrical water strainer for ships |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0470108U JPH0470108U (en) | 1992-06-22 |
JPH0639767Y2 true JPH0639767Y2 (en) | 1994-10-19 |
Family
ID=31860864
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1990113297U Expired - Lifetime JPH0639767Y2 (en) | 1990-10-29 | 1990-10-29 | Cylindrical water strainer for ships |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0639767Y2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005088835A (en) * | 2003-09-19 | 2005-04-07 | Mitsui O S K Lines Ltd | Marine vessel |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NO343503B1 (en) * | 2017-05-05 | 2019-03-25 | Swantech As | Grid device |
-
1990
- 1990-10-29 JP JP1990113297U patent/JPH0639767Y2/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005088835A (en) * | 2003-09-19 | 2005-04-07 | Mitsui O S K Lines Ltd | Marine vessel |
Also Published As
Publication number | Publication date |
---|---|
JPH0470108U (en) | 1992-06-22 |
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