JPH02125979A - Piston pump for water - Google Patents
Piston pump for waterInfo
- Publication number
- JPH02125979A JPH02125979A JP63276207A JP27620788A JPH02125979A JP H02125979 A JPH02125979 A JP H02125979A JP 63276207 A JP63276207 A JP 63276207A JP 27620788 A JP27620788 A JP 27620788A JP H02125979 A JPH02125979 A JP H02125979A
- Authority
- JP
- Japan
- Prior art keywords
- plastic
- piston pump
- piston
- sliding
- slide
- 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.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 11
- 229920003023 plastic Polymers 0.000 claims abstract description 29
- 239000004033 plastic Substances 0.000 claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 28
- 239000000835 fiber Substances 0.000 claims abstract description 23
- 239000002131 composite material Substances 0.000 claims abstract description 19
- 229920005989 resin Polymers 0.000 claims description 12
- 239000011347 resin Substances 0.000 claims description 12
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 8
- 238000005260 corrosion Methods 0.000 claims description 8
- 230000007797 corrosion Effects 0.000 claims description 8
- 229920002530 polyetherether ketone Polymers 0.000 claims description 8
- 239000004952 Polyamide Substances 0.000 claims description 4
- 239000004962 Polyamide-imide Substances 0.000 claims description 4
- 239000004734 Polyphenylene sulfide Substances 0.000 claims description 4
- 229920002492 poly(sulfone) Polymers 0.000 claims description 4
- 229920002647 polyamide Polymers 0.000 claims description 4
- 229920002312 polyamide-imide Polymers 0.000 claims description 4
- 229920000069 polyphenylene sulfide Polymers 0.000 claims description 4
- 229920006282 Phenolic fiber Polymers 0.000 claims description 3
- 229930182556 Polyacetal Natural products 0.000 claims description 3
- 239000004695 Polyether sulfone Substances 0.000 claims description 3
- 239000004697 Polyetherimide Substances 0.000 claims description 3
- 239000004973 liquid crystal related substance Substances 0.000 claims description 3
- 229920001230 polyarylate Polymers 0.000 claims description 3
- 229920006393 polyether sulfone Polymers 0.000 claims description 3
- 229920001601 polyetherimide Polymers 0.000 claims description 3
- -1 polyethylene terephthalate Polymers 0.000 claims description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 3
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 3
- 229920006324 polyoxymethylene Polymers 0.000 claims description 3
- 229920001955 polyphenylene ether Polymers 0.000 claims description 3
- 229920006351 engineering plastic Polymers 0.000 claims description 2
- 239000013535 sea water Substances 0.000 abstract description 12
- 239000000314 lubricant Substances 0.000 abstract description 2
- 230000005484 gravity Effects 0.000 abstract 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 230000013011 mating Effects 0.000 description 4
- 150000002739 metals Chemical class 0.000 description 4
- 239000004760 aramid Substances 0.000 description 3
- 229920003235 aromatic polyamide Polymers 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- XQUPVDVFXZDTLT-UHFFFAOYSA-N 1-[4-[[4-(2,5-dioxopyrrol-1-yl)phenyl]methyl]phenyl]pyrrole-2,5-dione Chemical compound O=C1C=CC(=O)N1C(C=C1)=CC=C1CC1=CC=C(N2C(C=CC2=O)=O)C=C1 XQUPVDVFXZDTLT-UHFFFAOYSA-N 0.000 description 1
- 239000004641 Diallyl-phthalate Substances 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 229920001807 Urea-formaldehyde Polymers 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- QUDWYFHPNIMBFC-UHFFFAOYSA-N bis(prop-2-enyl) benzene-1,2-dicarboxylate Chemical compound C=CCOC(=O)C1=CC=CC=C1C(=O)OCC=C QUDWYFHPNIMBFC-UHFFFAOYSA-N 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920003192 poly(bis maleimide) Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
- 229920006380 polyphenylene oxide Polymers 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Landscapes
- Moulding By Coating Moulds (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Details Of Reciprocating Pumps (AREA)
- Reinforced Plastic Materials (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、水用、特に海水用のピストンポンプに関する
もので、互いに摺接する２つの摺接面を構成する部材に
特殊な材料を組合わせることによって摺動部の摺動特性
を改善したものである。Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a piston pump for water, particularly seawater, in which special materials are combined into members constituting two sliding surfaces that slide against each other. This improves the sliding characteristics of the sliding part.
従来、海水中で作動するピストンポンプの摺動材料とし
ては、川崎重工枝根８２号、（１９８３年１０月号）に
掲載されているように、摺動部材には、アルミナ焼成材
、及びアルミナ・チタニア・セラミックス溶射材が使用
されていた。Conventionally, as sliding materials for piston pumps operating in seawater, as published in Kawasaki Heavy Industries Edane No. 82 (October 1983 issue), alumina calcined materials and alumina have been used for sliding members.・Titania ceramic spraying material was used.
また耐食性金属を使用する場合もあった。In some cases, corrosion-resistant metals were also used.
第５図及び第６図は海水用として従来から用いられてい
るピストンポンプである。FIGS. 5 and 6 show piston pumps conventionally used for seawater.
第５図、第６図に示すものは、クランクシャフト型のピ
ストンポンプであり、１はバルブブロック、２はシリン
ダ、３はプランジャ、４はケーシング、５はクロスヘツ
ド、６はピン、７はベアリング、８はコネクティングロ
ッド、９はクランクシャフトであり、クランクシャフト
９はエンジンの出力軸に連結されるようになっランジャ
３が上下動することによりバルブブロック１より海水を
吸入及び吐出するようになっている。5 and 6 are crankshaft type piston pumps, 1 is a valve block, 2 is a cylinder, 3 is a plunger, 4 is a casing, 5 is a crosshead, 6 is a pin, 7 is a bearing, Reference numeral 8 indicates a connecting rod, and reference numeral 9 indicates a crankshaft.The crankshaft 9 is connected to the output shaft of the engine, and as the plunger 3 moves up and down, seawater is sucked in and discharged from the valve block 1. .
このピストンポンプではプランジャ３とシリンダ２の間
に大きな負荷がかからないようになっていて、両部材の
摺動部には耐食性の金属が使用可能である。ただし、こ
のタイプのポンプはその単位重量当りの出力（出力重量
比）が小さいという欠点があった。In this piston pump, a large load is not applied between the plunger 3 and the cylinder 2, and corrosion-resistant metal can be used for the sliding parts of both members. However, this type of pump has a drawback in that its output per unit weight (output weight ratio) is small.
一方第１図は上記クランクシャフト型のピストンポンプ
より出力重量比の優れるアキシャルピストンポンプを示
すもので、図中１１はシリンダブロック、１２はベアリ
ングプレート、１３はバルブプレート、１４はピストン
、１５はスリーブ、１６はスリッパ、１７はロッカカム
、１８はクレードル、１９は軸、２０はスプライン、２
１は海水であり、上記軸１９はエンジンの出力軸に連結
されるようになっており、またスプライン２０でシリン
ダブロック１１に結合されている。On the other hand, Fig. 1 shows an axial piston pump which has a better output-to-weight ratio than the above-mentioned crankshaft type piston pump. In the figure, 11 is a cylinder block, 12 is a bearing plate, 13 is a valve plate, 14 is a piston, and 15 is a sleeve. , 16 is a slipper, 17 is a rocker cam, 18 is a cradle, 19 is a shaft, 20 is a spline, 2
1 is seawater, and the shaft 19 is connected to the output shaft of the engine, and is also connected to the cylinder block 11 by a spline 20.
る。このとき、ベアリングプレート１２とバルブプレー
）１３、ピストン１４とスリーブ１５、スリッパ１６と
ロッカカム１７はそれぞれ海水を潤滑剤として摺動状態
となる。Ru. At this time, the bearing plate 12 and valve plate 13, the piston 14 and sleeve 15, and the slipper 16 and rocker cam 17 are in a sliding state using seawater as a lubricant.
このアキシャルピストンポンプでは、上記各摺動部相互
間には、海水圧に応じた非常に大きい荷重が作用する。In this axial piston pump, a very large load depending on seawater pressure acts between each of the sliding parts.
これらの部分に従来材料である耐食金属やアルミナ焼成
材を用いると、これらの材料は剛性が高く、例えば、第
２図に示すように、耐食金属の場合は弾性率（ヤング率
）が約２０，０００ｋｇ−ｆ／ｍｒｒ？、アルミナ焼成
祠のそれは約４０．ｏｏｏｋｇ−ｆ／ｍｒ＋ｆであり、
摺動面の接触が均一にならない。そのため一部の接触に
よる片当りが生じ、均一に接触した場合に比較して接触
面圧が高くなり、かじりや焼きつき現象を呈するという
問題があった。When conventional materials such as corrosion-resistant metals and fired alumina materials are used for these parts, these materials have high rigidity; for example, as shown in Figure 2, the elastic modulus (Young's modulus) of corrosion-resistant metals is approximately 20. ,000kg-f/mrr? , that of the alumina firing shrine is about 40. oookg-f/mr+f,
Contact between sliding surfaces is not uniform. Therefore, there is a problem that uneven contact occurs due to partial contact, and the contact surface pressure becomes higher than that in the case of uniform contact, resulting in galling and seizure phenomena.
本発明は上記のことにかんがみなされたもので、摺動部
に特殊な材料を選定、組合せることにより上記問題点を
解決し、現在一般に使用されている油圧ポンプが作動し
ている程度の高圧〔課題を解決するための手段及び作用
〕上記目的を達成するために、本発明に係る水用ピスト
ンポンプは、ピストンポンプの摺動部分、例えば第１図
に示すアキシャルピストンポンプにあってはベアリング
プレート１２とバルブプレート１３、ピストン１４とス
リーブ１５、スリッパ１６とロッカカム１７のそれぞれ
の摺動面の一方に、プラスチックに有機繊維を複合した
プラスチック複合材を用い、他方に耐食材料を用いた構
成となっており、上記ブラスチッり複合材は相手摺動部
材になじんで片当りを生じることなく接触する。The present invention was conceived in consideration of the above, and solves the above problems by selecting and combining special materials for the sliding parts, and achieves a high pressure that is equivalent to that of hydraulic pumps currently in general use. [Means and operations for solving the problem] In order to achieve the above object, the piston pump for water according to the present invention has a sliding part of the piston pump, for example, a bearing in the axial piston pump shown in FIG. One of the sliding surfaces of the plate 12 and the valve plate 13, the piston 14 and the sleeve 15, and the slipper 16 and the rocker cam 17 is made of a plastic composite material made of plastic and organic fibers, and the other part is made of a corrosion-resistant material. The above-mentioned plastic composite material adapts to the mating sliding member and comes into contact with it without causing uneven contact.
そして上記有機繊維として、ポリアミド、ポリアセター
ル、ポリフェニレンエーテル、ポリエチレンテレフタレ
ート、ポリフェニレンサルファイド、ポリスルフォン、
ポリエーテルスルフォン、ポリエーテルエーテルケトン
、ポリエーテルイミド、ポリアミドイミド、ポリアリレ
ート、液晶樹脂、ノボロイド樹脂等の耐熱性のエンジニ
アリングプラスチック繊維を用いる。The organic fibers include polyamide, polyacetal, polyphenylene ether, polyethylene terephthalate, polyphenylene sulfide, polysulfone,
Heat-resistant engineering plastic fibers such as polyether sulfone, polyether ether ketone, polyether imide, polyamide imide, polyarylate, liquid crystal resin, novoloid resin, etc. are used.
本発明の実施例を第１図から第４図に基づいて説明する
。Embodiments of the present invention will be described based on FIGS. 1 to 4.
第１図において、シリンダブロック１１の端面に位置す
るベアリングプレート１２と、シリンダブロック１１に
嵌着されるスリーブ１５をプラスチックに有機繊維を複
合したプラスチック複合材にて構成し、またスリッパ１
６の摺接面側に上記プラスチック複合材よりなる摺動片
１６ａを固着する。上記ベアリングプレート１２はシリ
ンダブロック１１の端面に接着剤にて固着する。なお、
必要に応じて機械的に、例えばシリンダブロック１１側
に粗面あるいは溝を加工しておき、プラスチック複合材
をこの粗面あるいは溝に係合させた状態で接着剤にて固
着してもよい。またスリーブ１５はシリンダブロック１
１に接着剤を塗布後冷やしぼめにより嵌着する。さらに
スリッパ１６と摺動片１６ａとは上記ベアリングプレー
ト１２と同様に接着剤あるいは接着剤と機械的結合との
併用により固着する。In FIG. 1, a bearing plate 12 located on the end face of a cylinder block 11 and a sleeve 15 fitted to the cylinder block 11 are made of a plastic composite material made of plastic and organic fibers, and a slipper 1
A sliding piece 16a made of the above-mentioned plastic composite material is fixed to the sliding surface side of 6. The bearing plate 12 is fixed to the end face of the cylinder block 11 with adhesive. In addition,
If necessary, for example, a rough surface or a groove may be machined mechanically on the cylinder block 11 side, and the plastic composite material may be fixed with an adhesive while being engaged with the rough surface or groove. Also, the sleeve 15 is the cylinder block 1
After applying adhesive to 1, fit it with a cold seal. Further, the slipper 16 and the sliding piece 16a are fixed together using an adhesive or a combination of adhesive and mechanical bonding, similarly to the bearing plate 12 described above.
上記プラスチック複合材に複合する有機繊維にはポリア
ミド、ポリアセタール、ポリフェニレンエーテル、ポリ
エチレンテレフタレート、ポリフェニレンサルファイド
、ポリスルフォン、ポリエーテルスルフォン、ポリエー
テルエーテルケトン、ポリエーテルイミド、ポリアミド
イミド、ポリアリレート、液晶樹脂、ノボロイド樹脂等
がある。The organic fibers to be combined into the above plastic composite material include polyamide, polyacetal, polyphenylene ether, polyethylene terephthalate, polyphenylene sulfide, polysulfone, polyether sulfone, polyether ether ketone, polyether imide, polyamide imide, polyarylate, liquid crystal resin, and novoloid. There are resins, etc.
またベースとなるプラスチックとしてはポリエーテルエ
ーテルケトンを用い、これに上記有機繊維を３〜７０体
積％複合した。Polyether ether ketone was used as the base plastic, and 3 to 70 volume % of the above organic fibers were composited thereon.
ベースのポリエーテルエーテルケトンに対して芳香族ポ
リアミド繊維を複合させたときの繊維含有量の変化によ
る弾性率の変化は第２図に示すようになり、このプラス
チック複合材の弾性率は耐食金属及びアルミナ焼成材に
比較して著しく低い値であることがわかる。Figure 2 shows the change in elastic modulus due to changes in fiber content when aromatic polyamide fiber is composited with base polyether ether ketone. It can be seen that the value is significantly lower than that of fired alumina material.
また、第３図は上記構成のプラスチック複合材の限界ｐ
ｖ値に及ぼす芳香族ポリアミド繊維含有量（体積％）の
影響を示したものであり、限界ｐｖ値は、上記有機繊維
を３〜７０体積％含有した場合において大きな値となる
ことがわかった。In addition, Figure 3 shows the limit p of the plastic composite material with the above structure.
It shows the influence of the aromatic polyamide fiber content (volume %) on the v value, and it was found that the limit pv value becomes a large value when the above-mentioned organic fiber is contained in 3 to 70 volume %.
上記プラスチック複合材のベースとなるプラスチックは
上記したポリエーテルエーテルケトンに限るものではな
く、他の耐熱性プラスチック例えばフェノール樹脂、ユ
リア樹脂、ジアリルフタレート樹脂、ポリイミド樹脂、
シリコン樹脂等の熱硬化性プラスチックや、芳香族ポリ
エステル樹脂、ポリフェニレンオキサイド樹脂、ポリス
ルフォン樹脂、ポリフェニレンサルファイド樹脂、ポリ
アミドイミド樹脂、ポリアミドビスマレイミド樹脂のよ
うな熱可塑性プラスチックでもよい。The base plastic of the above plastic composite material is not limited to the polyether ether ketone mentioned above, but may also include other heat-resistant plastics such as phenol resin, urea resin, diallyl phthalate resin, polyimide resin,
Thermosetting plastics such as silicone resins, thermoplastic plastics such as aromatic polyester resins, polyphenylene oxide resins, polysulfone resins, polyphenylene sulfide resins, polyamideimide resins, and polyamide bismaleimide resins may be used.
熱硬化性プラスチックの場合、摺動条件が厳しくなり、
摺動面温度が高くなると、炭化し、若干摩擦係数が大き
くなる傾向があるが、それでも熱可塑性プラスチックの
場合同様に優れた限界ｐｖ値を示す。In the case of thermosetting plastics, the sliding conditions are stricter,
When the temperature of the sliding surface increases, it tends to carbonize and the coefficient of friction increases slightly, but it still shows an excellent limit pv value as in the case of thermoplastic plastics.
有機繊維の含有量は３体積％以下になると摺動性能に及
ぼす有機繊維の効果がなくなり、また７０体積％を越え
ると複合材としての成形が困難になる。If the content of organic fibers is less than 3% by volume, the organic fibers have no effect on sliding performance, and if it exceeds 70% by volume, it becomes difficult to form a composite material.
従来の祠料と本発明の一実施例、すなわち、ポリエーテ
ルエーテルケトンをベースに芳香族ポリアミド繊維を３
０体積％含有するプラスチック複合材を使用した場合の
摺動特性の相違を海水と油について次表に示す。なお、
この次表において、摩耗率が空欄になっているところは
、限界ｐｖ値が低過ぎるため摩耗率を測定できなかった
ことを示す。A conventional abrasive material and an embodiment of the present invention, that is, three aromatic polyamide fibers based on polyether ether ketone.
The following table shows the difference in sliding properties between seawater and oil when using a plastic composite material containing 0% by volume. In addition,
In the following table, blank columns for wear rate indicate that the wear rate could not be measured because the limit pv value was too low.
上記表において、本発明の一実施例でのプラスチック複
合材は従来材料の摺動特性に比較して、海水中での限界
Ｐｖ値、摩耗率、摩擦係数ともに優れていることがわか
る。また油中においても本発明に係る材料は従来の材料
とほぼ同様の結果を示している。In the above table, it can be seen that the plastic composite material according to one embodiment of the present invention is superior in terms of the limit Pv value, wear rate, and friction coefficient in seawater compared to the sliding properties of conventional materials. Furthermore, even in oil, the material according to the present invention shows almost the same results as conventional materials.
なお、上記表に示すように、本発明に係るプラスチック
複合材が従来例に比較して優れた摺動特性を発揮する理
由は下記の通りと考えられる。As shown in the above table, the reason why the plastic composite material according to the present invention exhibits superior sliding properties compared to the conventional example is considered to be as follows.
まず、低弾性率であるため、片当りとなる接触部がなく
なり、耐焼付性が向上する。また、接触部を拡大すると
第４図に示すようになると考えられ、ベースとなるプラ
スチック２２の表面に有機繊維２３の一部が露出してお
り、このプラスチック複合材を硬い相手材（セラミック
ス又は耐食金属）２４と摺動すると、プラスチック複合
材中の軟らかいプラスチック部分２２が摩耗し、弾性率
が高く耐摩耗性に優れる有機繊維２３が垂直荷重を支え
ることになる。そして、プラスチック２２と相手材２４
の間の水膜が切れないうちは焼付かないし、局所的ある
いは瞬間的に水膜が切れても、耐熱性に優れる有機繊維
２３と相手材２４との摺動になるため、容品には焼付か
ない。First, since it has a low elastic modulus, there is no contact area that causes uneven contact, and the seizure resistance is improved. Furthermore, if the contact area is enlarged, it will appear as shown in Figure 4, where a part of the organic fiber 23 is exposed on the surface of the base plastic 22, and this plastic composite material is connected to a hard mating material (ceramics or corrosion-resistant material). When sliding on the metal) 24, the soft plastic portion 22 in the plastic composite material wears out, and the organic fiber 23, which has a high elastic modulus and excellent abrasion resistance, supports the vertical load. Then, the plastic 22 and the mating material 24
Seizing will not occur until the water film between them breaks, and even if the water film breaks locally or momentarily, the organic fibers 23, which have excellent heat resistance, will slide against the mating material 24, so the product will not be damaged. No burn-in.
本発明によれば、ポリエーテルエーテルケトン等のプラ
スチック材をベース材とし、これに有機繊維を複合した
材料は、従来の耐食金属やセラミックス系のアルミナ焼
成材に比較して弾性率が低くなることにより、種々の摺
動特性が著しく改善され、この材料を摺動面の一方に用
いることにより、一般に使用されている油圧ポンプが作
動している程度の高圧力下において海１１゛水中で使用
しても摺動面に焼付きが生じることがなく、しかも出力
重力比の優れた水用ピストンポンプを製作することがで
きる。According to the present invention, a material made of a plastic material such as polyetheretherketone as a base material and composited with organic fibers has a lower modulus of elasticity than conventional corrosion-resistant metals or ceramic-based fired alumina materials. Various sliding properties have been significantly improved, and by using this material on one of the sliding surfaces, it can be used underwater under the same high pressure as a commonly used hydraulic pump. It is possible to manufacture a piston pump for water that does not cause seizing on the sliding surface and has an excellent output-to-gravity ratio.
第１図から第４図は本発明の実施例を示すもので、第１
図はアキシャルピストンポンプの断面図、第２図は従来
の海水ポンプに使用されている摺動材料及び本発明の実
施例における摺動材料の弾性率を示す線図、第３図は有
機繊維含有率に対する限界Ｐｖ値を示す線図、第４図は
摺動面の接触部を示す拡大断面図であり、また第５図は
従来のピストンポンプの一部破断正面図、第６図はその
一部破断側面図である。
１１はシリンダブロック、１２はベアリングプレート、
１３はバルブプレート、１４はピストン、１５はスリー
ブ、１６はスリッパ、１６ａは摺動片、１７はロッカカ
ム。
特許出願人 工 業 技 術 院 長区
味1 to 4 show embodiments of the present invention.
The figure is a cross-sectional view of an axial piston pump, Figure 2 is a diagram showing the elastic modulus of the sliding material used in conventional seawater pumps and the sliding material in the embodiment of the present invention, and Figure 3 is a diagram showing the elastic modulus of the sliding material used in the conventional seawater pump. Fig. 4 is an enlarged sectional view showing the contact portion of the sliding surface, Fig. 5 is a partially cutaway front view of a conventional piston pump, and Fig. 6 is a diagram showing the limit Pv value against the ratio. FIG. 3 is a partially cutaway side view. 11 is the cylinder block, 12 is the bearing plate,
13 is a valve plate, 14 is a piston, 15 is a sleeve, 16 is a slipper, 16a is a sliding piece, and 17 is a rocker cam. Patent applicant: Director of Industrial Technology
Claims (3)
ックに有機繊維を複合したプラスチック複合材を用い、
他方に耐食材料を用いたことを特徴とする水用ピストン
ポンプ。(1) A plastic composite material made of plastic and organic fiber is used on one of the two sliding surfaces that slide against each other,
A water piston pump characterized by using a corrosion-resistant material on the other side.
ポリフェニレンエーテル、ポリエチレンテレフタレート
、ポリフェニレンサルファイド、ポリスルフォン、ポリ
エーテルスルフォン、ポリエーテルエーテルケトン、ポ
リエーテルイミド、ポリアミドイミド、ポリアリレート
、液晶樹脂、ノボロイド樹脂等の耐熱性のエンジニアリ
ングプラスチック繊維を用いたことを特徴とする請求項
１記載の水用ピストンポンプ。(2) As organic fibers, polyamide, polyacetal,
Characterized by the use of heat-resistant engineering plastic fibers such as polyphenylene ether, polyethylene terephthalate, polyphenylene sulfide, polysulfone, polyether sulfone, polyether ether ketone, polyether imide, polyamide imide, polyarylate, liquid crystal resin, novoloid resin, etc. The piston pump for water according to claim 1.
体積％含有させたことを特徴とする請求項１記載の水用
ピストンポンプ。(3) 3 to 70 organic fibers added to the base plastic
The piston pump for water according to claim 1, characterized in that the water piston pump contains % by volume.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63276207A JP2692044B2 (en) | 1988-11-02 | 1988-11-02 | Piston pump for water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63276207A JP2692044B2 (en) | 1988-11-02 | 1988-11-02 | Piston pump for water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02125979A true JPH02125979A (en) | 1990-05-14 |
| JP2692044B2 JP2692044B2 (en) | 1997-12-17 |
Family
ID=17566179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63276207A Expired - Lifetime JP2692044B2 (en) | 1988-11-02 | 1988-11-02 | Piston pump for water |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2692044B2 (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4301133A1 (en) * | 1993-01-18 | 1994-07-21 | Danfoss As | Hydraulic piston machine |
| DE4417011A1 (en) * | 1994-05-13 | 1995-11-16 | Danfoss As | Hydraulic piston machine |
| US5469776A (en) * | 1994-07-13 | 1995-11-28 | Danfoss A/S | Hydraulic pumping device |
| EP0688952A1 (en) * | 1994-06-18 | 1995-12-27 | Alfred Kärcher GmbH & Co. | High pressure cleaning device |
| US5762477A (en) * | 1994-07-13 | 1998-06-09 | Danfoss A/S | Piston/slide shoe arrangement |
| KR20010076481A (en) * | 2000-01-26 | 2001-08-16 | 이규건 | Rapier band for textile machine |
| EP1382846A2 (en) * | 2002-07-18 | 2004-01-21 | Riviera S.R.L. Genova | Pump particularly for hydraulic rudder control systems |
| DE4424671B4 (en) * | 1994-07-13 | 2004-01-22 | Danfoss A/S | Control mirror of a hydraulic machine |
| JP2010120992A (en) * | 2008-11-17 | 2010-06-03 | Oiles Ind Co Ltd | Fiber-reinforced resin composition for sliding member, and laminated sliding member |
| WO2013022094A1 (en) * | 2011-08-11 | 2013-02-14 | Ntn株式会社 | Sliding nut, sliding bearing for compressor, and cradle guide |
| JP2013204463A (en) * | 2012-03-27 | 2013-10-07 | Ntn Corp | Cradle guide for variable capacity type axial piston pump, and variable capacity type axial piston pump |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS529110A (en) * | 1975-07-14 | 1977-01-24 | Nippon Ekonoole Kk | Improved rotary pump |
| JPS5891177A (en) * | 1981-11-27 | 1983-05-31 | Ebara Corp | Pump free of local corrosion |
| JPS62215166A (en) * | 1986-03-14 | 1987-09-21 | Taiho Kogyo Co Ltd | Composite piston and its manufacture |
| JPS6385269A (en) * | 1986-09-29 | 1988-04-15 | Toshiba Corp | Compressor |
-
1988
- 1988-11-02 JP JP63276207A patent/JP2692044B2/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS529110A (en) * | 1975-07-14 | 1977-01-24 | Nippon Ekonoole Kk | Improved rotary pump |
| JPS5891177A (en) * | 1981-11-27 | 1983-05-31 | Ebara Corp | Pump free of local corrosion |
| JPS62215166A (en) * | 1986-03-14 | 1987-09-21 | Taiho Kogyo Co Ltd | Composite piston and its manufacture |
| JPS6385269A (en) * | 1986-09-29 | 1988-04-15 | Toshiba Corp | Compressor |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4301133A1 (en) * | 1993-01-18 | 1994-07-21 | Danfoss As | Hydraulic piston machine |
| EP0686766A3 (en) * | 1994-05-13 | 1997-06-25 | Danfoss As | Hydraulic piston machine |
| DE4417011A1 (en) * | 1994-05-13 | 1995-11-16 | Danfoss As | Hydraulic piston machine |
| EP0686766A2 (en) * | 1994-05-13 | 1995-12-13 | Danfoss A/S | Hydraulic piston machine |
| EP0688952A1 (en) * | 1994-06-18 | 1995-12-27 | Alfred Kärcher GmbH & Co. | High pressure cleaning device |
| US5762477A (en) * | 1994-07-13 | 1998-06-09 | Danfoss A/S | Piston/slide shoe arrangement |
| US5469776A (en) * | 1994-07-13 | 1995-11-28 | Danfoss A/S | Hydraulic pumping device |
| DE4424671B4 (en) * | 1994-07-13 | 2004-01-22 | Danfoss A/S | Control mirror of a hydraulic machine |
| KR20010076481A (en) * | 2000-01-26 | 2001-08-16 | 이규건 | Rapier band for textile machine |
| EP1382846A2 (en) * | 2002-07-18 | 2004-01-21 | Riviera S.R.L. Genova | Pump particularly for hydraulic rudder control systems |
| JP2010120992A (en) * | 2008-11-17 | 2010-06-03 | Oiles Ind Co Ltd | Fiber-reinforced resin composition for sliding member, and laminated sliding member |
| WO2013022094A1 (en) * | 2011-08-11 | 2013-02-14 | Ntn株式会社 | Sliding nut, sliding bearing for compressor, and cradle guide |
| JP2013204463A (en) * | 2012-03-27 | 2013-10-07 | Ntn Corp | Cradle guide for variable capacity type axial piston pump, and variable capacity type axial piston pump |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2692044B2 (en) | 1997-12-17 |
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| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |