WO1984003329A1 - Rotor for vane pump and motor - Google Patents
Rotor for vane pump and motor Download PDFInfo
- Publication number
- WO1984003329A1 WO1984003329A1 PCT/JP1984/000061 JP8400061W WO8403329A1 WO 1984003329 A1 WO1984003329 A1 WO 1984003329A1 JP 8400061 W JP8400061 W JP 8400061W WO 8403329 A1 WO8403329 A1 WO 8403329A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rotor
- vane
- motor
- rotating shaft
- pump
- Prior art date
Links
- 239000012530 fluid Substances 0.000 claims abstract description 18
- 229910052751 metal Inorganic materials 0.000 claims abstract description 16
- 239000002184 metal Substances 0.000 claims abstract description 16
- 239000002131 composite material Substances 0.000 claims abstract description 10
- 239000010953 base metal Substances 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 9
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 2
- KKEBXNMGHUCPEZ-UHFFFAOYSA-N 4-phenyl-1-(2-sulfanylethyl)imidazolidin-2-one Chemical compound N1C(=O)N(CCS)CC1C1=CC=CC=C1 KKEBXNMGHUCPEZ-UHFFFAOYSA-N 0.000 claims 1
- 239000011796 hollow space material Substances 0.000 claims 1
- 238000005728 strengthening Methods 0.000 claims 1
- 239000011159 matrix material Substances 0.000 abstract 1
- 238000005242 forging Methods 0.000 description 8
- 238000003466 welding Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 229910010272 inorganic material Inorganic materials 0.000 description 3
- 239000011147 inorganic material Substances 0.000 description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 3
- 229910010271 silicon carbide Inorganic materials 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000861 Mg alloy Inorganic materials 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910001234 light alloy Inorganic materials 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000005070 ripening Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000002048 anodisation reaction Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000009740 moulding (composite fabrication) Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000003307 slaughter Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/08—Rotary pistons
Definitions
- the present invention relates to a hollow body rotor used for a vane pump and a motor.
- vane pumps and motors are widely used in many industrial fields, vane pumps and motors are disclosed in Japanese Patent Application Laid-Open No. 53-65898. Since the rotor of the pump was previously manufactured as a solid body, it was relatively heavy. Therefore, there has been a demand for lighter pumps, but in particular, in transportation, there is a strong demand for lighter pumps as a measure to save energy. I did. The main cause of the heavy pump is the heavy solid rotor.To reduce the weight of the pump, the rotor must be moved from a heavy solid to a light hollow body. It must be changed to the mouth of the hollow body -Data must be able to be manufactured efficiently.
- the hollow rotor body In order to reduce the weight of a carcass, the hollow rotor body should be made as thin as possible, or the rotor body, rotating shaft, and both side plates should be made of aluminum. It is desirable to use a light alloy such as nickel. However, if the rotor with reduced thickness and the rotating shaft are made of a light alloy, the strength will be weak and it will not be usable. . In addition, since the heat of the non-lubricated vane type compressor, where the temperature rise is remarkable, preferably incorporates a cooling heat tip, it is easy to incorporate a heat pipe. Things are desired.
- the present invention has a sufficient strength even if it is a light hollow rotor and has a thin wall or a light metal alloy such as a rotating steel.
- the goal is to provide what you have. Disclosure of the invention
- the rotor of the present invention comprises a hollow rotor * body, both side plates welded to both sides thereof, and at least one of the both side plates fixed thereto.
- the result is the rotation ⁇ .
- the rotor * body and the rotating shaft be made of a composite material in which the base metal is reinforced with discs.
- the base metal may be ferrous or non-ferrous, but whiskers are inorganic materials such as silicon carbide, carbon, glass, etc. It has a higher softening point or melting point than the temperature of the molten metal.
- the rotor body and the rotating shaft of the composite material are put into a rotor end body or a rotating die, and the whisker-formed body that has been press-formed to a porosity of up to about 50% is placed in the mold. It is manufactured by a casting method in which a molten metal of the base metal is injected into the mold and infiltrated into the voids of the whisker compact. This rotating wheel is fixed to the side plate, and the side plate is joined to form a hollow rotor. Can a rotor thick body whose base metal is reinforced with discs as ultrahigh-strength fibers have a very high specific strength and a very thin wall thickness? In addition, it is possible to further reduce the weight compared to the conventional one.
- a blind tapered hole that tapers to the side of the pulley is drilled on the rotating shaft, and the sealing plug for hydraulic fluid is inserted into the inlet or pulley of the rotary hole.
- Side and anti Hydraulic fluid is provided in the shaft center of the opposite side plate, and the working fluid is sealed inside the rotating shaft or between the rotating shaft and the rotor.
- the rotor of the present invention has a structure in which both side plates are welded to the empty mouth body, so that the rotor is lightweight and easy to mass-produce. It also has the advantage that it can be easily built into a flute.
- FIGS. I and 2 are an exploded perspective view and a partially cutaway perspective view of a rotor according to one embodiment of the invention.
- FIG. 5 is an enlarged view of a cross section of a part of the body
- FIG. 6 is a view corresponding to FIG. 5 of another embodiment
- FIG. 7 is a structured rotating shaft.
- FIG. 8 is a schematic view showing a rotary shaft and a side plate
- FIG. 9 is a schematic view showing a rotary shaft and a side surface of a side plate after forging.
- the rotor body 12 of the rotor 10 is formed into a hollow body by a method such as extrusion or press molding, and the rotor body is formed as a hollow body.
- the side plates 13 and 14 formed by press forming, forging or forging are joined to both sides by welding, preferably by resistance welding.
- the side plate 14 and the rotating shaft 11 are unitary, the rotary shaft 11 is connected to the press-formed side plate 14 rather than being integrally formed from the beginning of forging. It is easier to manufacture and the cost is lower.
- the rotor 10 is hollow and lightweight because it is hollow, and the rotor 'wood 12, rotating shaft 11, side shafts 13 and 14, which make up the rotor 10, are also welded together.
- the rotor 10 is easy to assemble, so that the rotor 10 can be mass-produced at low cost.
- the hollow mouth body 12 shown in FIG. 1 is deformed and the shape of the vane groove is distorted, which may hinder the fly-out of the blade. Therefore, as shown in Fig. 2, the mouth—the hollow body of the body 1 2 At least one reinforcing plate 16 similar in cross section to the rotor ⁇ ; it is desirable to fix the inner peripheral surface of the body 12 by welding or the like to reinforce the rotor body 12 New
- the rotating shaft 11 before welding the rotating shaft 11 to the shaft 14, drill a blind tapered hole 2 tapering to the pulley side, and insert it into the entrance of the hole. Cut thread 3.
- Heat pipe hydraulic fluid is injected into the taper hole 2, and the sealing fluid 5 is screwed into the female screw 3 at the inlet via the seal member 4 to seal the hydraulic fluid inside. .
- the rotary shaft 11 acts as a heat pipe, and a portion connected to the side surface 14 serves as a heat receiving portion, and an end portion on the pulley side serves as a heat radiating portion.
- the heat of the rotor body is transmitted from the side plate 14 to the heat receiving section of the heat pipe to evaporate the working fluid in the heat receiving section.
- the steamed working fluid passes through the center of the taper hole 2 and releases ripening at the ripening section at the rear end to be liquefied. Since the liquefied working fluid re-enters the heat receiving section along the inner peripheral wall of the taper hole 2, heat exchange of the heat pipe is quick, and the heat of the Q-ta 10 is efficient. It is often released to the outside. Therefore, the temperature of rotor 10 will not rise above the permissible limit As shown in Fig. 4, when the working fluid of the heat pipe is sealed not only in the inner part of the rotor 11 but also in the rotor 12 as well, Since the heat pipe 12 is a heat receiving section, the rotor 10 can be cooled more efficiently.
- the rotary shaft 11 is provided with the same tapered hole 2 as the embodiment of FIG. 3, but the thread 3 for the inlet of the hydraulic fluid is rotated by the rotation of the side plate 13 opposite to the pulley side.
- ⁇ ⁇ Provided in 15.
- the sealing plug 5 is screwed into the screw 3 of the inlet via the sealing member 4, and the working fluid is sealed inside.
- the rotor is cantilevered, there is no shaft end on the side plate, so the shaft center of the side plate is recessed inward to form the inlet for hydraulic fluid, but the inlet for hydraulic fluid is sealed. Instead of sealing with a stopper, the inlet may be sealed directly.
- the ⁇ -turret 12 is made of inorganic material such as silicon carbide, carbon, glass, etc. It can also be manufactured from a ferrous material such as aluminum or a composite consisting of a base metal of a light metal material such as aluminum, an aluminum alloy, or a magnesium alloy. . Whiskers are at least It is press-molded to an extent having a porosity of 50% and put into a mold for producing a rotor * body 12. The molten metal of the base metal M is poured into the mold and infiltrated into the gap of the whisker-F, and the rotor of the composite composed of the whiskers F and the base metal: *: Body 12 is produced.
- the wall thickness can be made thinner than before. However, the weight is significantly reduced.
- the rotor body manufactured in this way is welded to a side plate provided with a rotary shaft in advance to form a rotor.
- the weight only decreases significantly. In addition, the effect of improving the sliding characteristics with the vane can be obtained.
- the rotor end body 12 can also be manufactured by forging.
- the whiskers are pressed into a metal mold for plating so that the porosity remains about 50%, and the molten metal of the base metal is injected into the metal mold.
- the molten metal is infiltrated into the whisker voids to become the rotor body material, which is then forged into a hollow rotor.
- the whiskers F in the base metal ⁇ are aligned along the forging line, as shown in Fig. 6.
- the specific strength of rotor * body 12 further increases.
- both side plates 13 and 14 integral with the rotating members 11 and 15 on both sides are made of inorganic material such as silicon carbide, carbon, glass, etc.
- the material of the base metal of the material F, the iron-based material such as steel, or the light metal material such as aluminum, aluminum alloy, magnesium alloy, etc. can also be manufactured from composite materials consisting of ⁇ .
- the whisker is press-formed so as to have a porosity of at least 50%, and is used to form both side plates 13 and 14 integrated with the rotating shafts 11 and 15 on both sides. It is put into a mold.
- the molten metal of the base metal light metal ⁇ is injected into the mold and infiltrated into the gaps of the whiskers F.
- Both side plates 13 and 14 integral with 1 and 15 are manufactured. Both sides integral with rotating shafts 11 and 15 on both sides ⁇ 13 and 14 are very light in weight but high in strength because the mother metal #M is reinforced with whiskers F of ultra-high strength fiber. Rotor shafts on both sides manufactured in this way; 11 and 15 integrated with both sides ⁇ 13 and 14 Weld the rotor body separately manufactured to the rotor.
- the rotating shafts on both sides and both side plates can also be manufactured by construction.
- the whisker is pressed into a forging die so that the porosity remains at a maximum of about 50%, and the molten metal of the base metal is poured into the die. .
- the molten metal of the base metal M is infiltrated into the space of the coil force -F and becomes a material for the construction of both side plates integral with the rotating wheels on both sides.
- This material is forged into a hollow rotor.
- both sides ⁇ 11, 15 integrated with forged parts ⁇ 13, 14 ⁇ manufactured by forging ⁇ 13, 14 are whiskers F in the base metal light metal M. Since the rods are aligned along the flow line, the specific strength of both side plates 13 and 14 integral with the rotary plates 11 and 15 increases by one slaughter.
- vane-type pump and motor rotor of the invention are light in weight, the excess amount of the car engine and the pump of the car cooler Suitable for vane pump rotors used as lesser.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Abstract
A rotor (10) for a vane pump and motor comprises a hollow rotor body (12), end plates (13, 14) welded to both end surfaces thereof, and a rotating shaft (11) secured to the end plates. If required, a heat pipe working fluid could be sealed within the rotating shaft (11) or the rotor body (12). The rotor (10) provided with the rotor body (12), the rotating shaft (11) and the end plates (13, 14) is made of a composite material prepared by mixing whiskers into a matrix metal, and has a sufficiently high strength even if the wall thicknesses are further reduced, so that it is possible to obtain an extremely lightweight rotor.
Description
明 細 ベ ー ン形ボ ン プ及びモ ー タ用 ロ ー タ 技術分野 Technical field of vane type pumps and rotors for motors
本発明はべ一 ン 形 ポ ン プ及びモ ー タ に使用 され る 中空体の ロ ー タ に 関する。 背景技術 The present invention relates to a hollow body rotor used for a vane pump and a motor. Background art
ぺ ー ン形ポ ン プ及びモ ー タ は多 く の産業分野 で 広 く 使用 されてい る が、 日术特開昭 5 3 - 6 5 9 8 8 号 に示す よ う に 、 ベー ン形ポン プの ロ ー タ は これ ま で中実体 と し て製作されていたの で、 重量 が比較的大 き か っ た。 そ こで、 従来か ら 軽聂化が 要望 されていたが、 特 に、 交通機関におい ては省 エネ ル ギ ー 対策 と し て ポ ンプの軽量化が強 く 望 ま れ る よ う に な っ た。 ポ ン プの重量が大き い主た る 原因は重い中実体の ロ ー タ に あ る ので、 ポ ン プ を 軽量化する た め に は 、 ロ ー タ を重い中実体か ら 軽 い中空体に変え な く ては な ら ないが、 中空体の 口
- タ は効率よ く 製造 し得る も のでな く てはな ら な い。 一屠の軽量化を 図る には、 中空に し た ロ ー タ ¾体 の 肉厚 を で き る 限 り 薄 く し た り 、 ロ ー タ 太 体、 回転軸、 両側板の材料を アル ミ ニ ウ ム等の軽 合金に した り する こ と が望ま しい。 しか し 、 ロ ー タ术侔の肉厚を薄 く した リ 、 回転軸等を軽合金で 製作 し た り す る と 、 強度が弱 く なつ て使用 に供 し 得ない と い う 問題が生ずる。 又、 温度上昇が著 し い無潤滑式べ - ン形圧縮機の - タ は冷却用 ヒ ー ト ノ ィ プを内葳する こ とが好 しいので、 ヒ ー ト パ イ ブの内蔵 しやすい も のが要望される。 Although vane pumps and motors are widely used in many industrial fields, vane pumps and motors are disclosed in Japanese Patent Application Laid-Open No. 53-65898. Since the rotor of the pump was previously manufactured as a solid body, it was relatively heavy. Therefore, there has been a demand for lighter pumps, but in particular, in transportation, there is a strong demand for lighter pumps as a measure to save energy. I did. The main cause of the heavy pump is the heavy solid rotor.To reduce the weight of the pump, the rotor must be moved from a heavy solid to a light hollow body. It must be changed to the mouth of the hollow body -Data must be able to be manufactured efficiently. In order to reduce the weight of a carcass, the hollow rotor body should be made as thin as possible, or the rotor body, rotating shaft, and both side plates should be made of aluminum. It is desirable to use a light alloy such as nickel. However, if the rotor with reduced thickness and the rotating shaft are made of a light alloy, the strength will be weak and it will not be usable. . In addition, since the heat of the non-lubricated vane type compressor, where the temperature rise is remarkable, preferably incorporates a cooling heat tip, it is easy to incorporate a heat pipe. Things are desired.
末発明は、 上記の要望 と問題に鑑み、 軽い中空 体ロ ー タ であ っ て、 肉厚が薄 く ても又は回転铀等 の母おが軽合金であ っ て も、 十分な強度を持つ も の を提供する こ と を 目 的とする。 発明の開示 In view of the above-mentioned demands and problems, the present invention has a sufficient strength even if it is a light hollow rotor and has a thin wall or a light metal alloy such as a rotating steel. The goal is to provide what you have. Disclosure of the invention
前記 目 的を達成する ため本発明の 口 - タ は中空 に形成 した ロ ー タ *体 と 、 その両側に溶接 された 両側板 と 、 そ の両側板の少な く と も一方 に固定 さ
れた回転轴 と か ら な る。 ロ ー タ *体 と 回転軸は母 材金属がゥ ィ ス カ ー で強化された複合材か ら な る こ と が望ま し い。 そ の母お金属は鉄系で も 非鉄系 で も よ いが、 ウ イ ス カ 一 はシ リ コ ン カ ー バ イ ト 、 カ - ボ ン 、 ガ ラ ス等の無機材料で母材金属の溶湯 温度 よ リ も 高い軟化点又は融点を有する 。 In order to achieve the above-mentioned object, the rotor of the present invention comprises a hollow rotor * body, both side plates welded to both sides thereof, and at least one of the both side plates fixed thereto. The result is the rotation 轴. It is desirable that the rotor * body and the rotating shaft be made of a composite material in which the base metal is reinforced with discs. The base metal may be ferrous or non-ferrous, but whiskers are inorganic materials such as silicon carbide, carbon, glass, etc. It has a higher softening point or melting point than the temperature of the molten metal.
複合材の ロ - タ 本体 と 回転軸は、 最大 5 0 %程 度ま での空隙率に加圧成形 した ウ イ ス カ - 成形体 を ロ ー タ 末体又は回転铀の金型に入れ、 母材金属 の溶湯 を そ の金型に 注入 して ウ イ ス カ 一 成形体の 空隙部分に溶浸 させ る鋅造法に よ り 製造 され る 。 こ の 回転轴を側板に 固定 し、 その側板を瑢接 し て 中空—状の ロ ー タ と す る 。 超高強度繊維 と し ての ゥ ィ ス カ - で母材金属が強化されたロ - タ 太体は 、 比強度が非常 に高 く 、 肉厚を極めて薄 く する こ と がで き る か ら 、 従来の も のよ リ も一層の軽量化 を 図 る こ と が可能であ る 。 The rotor body and the rotating shaft of the composite material are put into a rotor end body or a rotating die, and the whisker-formed body that has been press-formed to a porosity of up to about 50% is placed in the mold. It is manufactured by a casting method in which a molten metal of the base metal is injected into the mold and infiltrated into the voids of the whisker compact. This rotating wheel is fixed to the side plate, and the side plate is joined to form a hollow rotor. Can a rotor thick body whose base metal is reinforced with discs as ultrahigh-strength fibers have a very high specific strength and a very thin wall thickness? In addition, it is possible to further reduce the weight compared to the conventional one.
ヒ ー ト パ イ プを内蔵する場合は、 プー リ 側 に先 細 る 盲のテ - パ穴を 回転軸に穿ち、 作動液の封入 栓 を 回転轴のテ ー バ穴の入口又はプ - リ 側 と は反
対側の側板の軸心に設けて作動液を回転轴の内部 又は回転軸 と ロ ー タ : 体の内部に密封する 。 If a heat pipe is built in, a blind tapered hole that tapers to the side of the pulley is drilled on the rotating shaft, and the sealing plug for hydraulic fluid is inserted into the inlet or pulley of the rotary hole. Side and anti Hydraulic fluid is provided in the shaft center of the opposite side plate, and the working fluid is sealed inside the rotating shaft or between the rotating shaft and the rotor.
こ の よ ラ に 、 本発明の ロ ー タ は^空の口 — タ 本 体に両側板を溶接 した構造であ るか ら、 軽量で量 産 も 容易であ り 、 必要であれば、 ヒ ー ト パ イ プ も 至桎簡単に内蔵させる こ とができ る と い う利点 を 有する 。 図面の簡単な説明 As described above, the rotor of the present invention has a structure in which both side plates are welded to the empty mouth body, so that the rotor is lightweight and easy to mass-produce. It also has the advantage that it can be easily built into a flute. BRIEF DESCRIPTION OF THE FIGURES
第 i 図及び第 2 図は ^発明の一実施例の ロ - タ の分解斜視図及び部分切欠き斜視図、 第 3 図は ヒ FIGS. I and 2 are an exploded perspective view and a partially cutaway perspective view of a rotor according to one embodiment of the invention, and FIG.
- ト パ イ プを 内蔵 し た実施例の第 2 図に相当す る 図、 第 4 図は他の実施例の第 3 図に相当する 図で あ る 。 第 5 図は 口 - タ ^:体の一部の断面 を拡大 し て示す図、 第 6 図は他の実施例の第 5 図 に相当す る 図、 第 7 図は銬造 された回転軸と側板の断面を 示す略図、 第 8 図は回転铀と側板の鍍造素材の断 面図、 第 9 図は鍛造後の回転軸 と側板の靳面を示 す略図であ る 。 -A diagram corresponding to FIG. 2 of the embodiment having a built-in pipe, and FIG. 4 is a diagram corresponding to FIG. 3 of the other embodiment. FIG. 5 is an enlarged view of a cross section of a part of the body, FIG. 6 is a view corresponding to FIG. 5 of another embodiment, and FIG. 7 is a structured rotating shaft. And FIG. 8 is a schematic view showing a rotary shaft and a side plate, and FIG. 9 is a schematic view showing a rotary shaft and a side surface of a side plate after forging.
- Λ'Α i '
発明 を実施す る ための最良の形態 -Λ'Α i ' BEST MODE FOR CARRYING OUT THE INVENTION
末発明の D — タ を 図面に示す実施例に基づい て 説明す る 。 第 1 図及び第 2 図に示す よ う に 、 ロ ー タ 1 0 の ロ ー タ本体 1 2 を押出 し加工、 プ レ ス 成 形等の手法で中空に形成 し、 その ロ - タ 太体の両 側に 、 プ レ ス成形又 は銬造若 し く は鍛造 に よ り 形 成 し た側板 1 3 、 1 4 を溶接、 好ま し く は、 抵抗 溶接に よ り 接合する 。 側板 1 4 と 回転軸 1 1 は一 体であ .る が、 鍛造に ょ リ 始めか ら一体に成形す る よ り も 、 プ レ ス成形 し た側板 1 4に回転铀 1 1 を 瑢接 す る 方が製作 も 容 易 で あ リ コ ス ト も 安 く な る 。 こ の ロ ー タ 1 0 は中空のため軽量で あ り 、 そ れを構成する ロ ー タ '木体 1 2 、 回転铀 1 1 、 側扳 1 3 、 1 4 の製作 も 、 それ らの溶接に よ る組立 も 簡単 で あ る か ら 、 ロ ー タ 1 0 は低コ ス ト で量産す る こ と がで き る 。 The D-terminal of the invention will be described based on an embodiment shown in the drawings. As shown in FIGS. 1 and 2, the rotor body 12 of the rotor 10 is formed into a hollow body by a method such as extrusion or press molding, and the rotor body is formed as a hollow body. The side plates 13 and 14 formed by press forming, forging or forging are joined to both sides by welding, preferably by resistance welding. Although the side plate 14 and the rotating shaft 11 are unitary, the rotary shaft 11 is connected to the press-formed side plate 14 rather than being integrally formed from the beginning of forging. It is easier to manufacture and the cost is lower. The rotor 10 is hollow and lightweight because it is hollow, and the rotor 'wood 12, rotating shaft 11, side shafts 13 and 14, which make up the rotor 10, are also welded together. The rotor 10 is easy to assemble, so that the rotor 10 can be mass-produced at low cost.
使用条件が極めて苛酷な場合、 第 1 図 の中空 口 一 タ 术体 1 2 は変形 し てベー ン溝の形が歪み、 ぺ 一 ン の 飛 出 し 性が 阻害 さ れ る お そ れ を生ずる の で、 第 2 図 に示す よ う に、 口 — タ术体 1 2 の中空
断面 と 相似形の補強板 1 6 を少な く と も一枚ロ ー タ ^;体 1 2 の内周面 に溶接等に よ り 固定 て ロ - タ 本体 1 2 を補強す る こ とが望ま しい。 When the operating conditions are extremely severe, the hollow mouth body 12 shown in FIG. 1 is deformed and the shape of the vane groove is distorted, which may hinder the fly-out of the blade. Therefore, as shown in Fig. 2, the mouth—the hollow body of the body 1 2 At least one reinforcing plate 16 similar in cross section to the rotor ^; it is desirable to fix the inner peripheral surface of the body 12 by welding or the like to reinforce the rotor body 12 New
第 3 図に示す よ う に、 回転轴 1 1 を側扳 1 4 に 溶接す る前に プ ー リ 側に先細る盲のテ - パ穴 2 を 穿ち 、 そのテ - ノぐ穴の入口 にめね じ 3 を切る 。 テ ー パ穴 2 の内部に ヒ ー ト パイ プ作動液を注入 し 、 シ ー ル部材 4 を介 し て入 口のめねじ 3 に封入栓 5 をね じ込ん で作動液を内部に密封する。 これ に よ リ 、 回転軸 1 1 ほ ヒ ー ト パイ プ と して作用 し、 側 扳 1 4 と の結合部分が受熱部、 プー リ 側の轴端部 分が放熱部 と なる 。 ロ ー タ本体の熱は側板 1 4 か ら ヒ ー ト パ イ プの受熱部に伝達されて受熱部の作 動液を蒸発 させる 。 蒸癸 した作動液はテ ー パ穴 2 の铀心 を通 リ 轴端の放熟部において熟を放出 し液 化する 。 液化 した作動液ほテ - パ穴 2 の内周壁 に 沿 っ て再び受熱部に移行するか ら、 ヒ ー ト パ イ プ の熱交換は迅速であ り 、 Q — タ 1 0 の熱は効率 よ く 外部へ放出 される 。 したがっ て、 ロ ー タ 1 0 の 温度が許容限界を越えて上昇する こ と は ない
第 4 図に示す よ う に 、 ヒ ー ト パイ ブの作動液 を 回転轴 1 1 の内都だけでな く ロ ー タ *体 1 2 の内 部に も 封入す る と 、 ロ ー タ本体 1 2 が ヒ ー ト パ イ プの受熱部に な る か ら 、 一層効率よ く ロ ー タ 1 0 を冷却する こ と がで き る。 こ の場合、 回転轴 1 1 に は、 第 3 図の実施例 と 同じテーパ穴 2 を設け る が、 作動液の入 口 の めね じ 3 は プー リ 側 と は反対 の側板 1 3 の 回転轴 1 5 に設け る。 入 口 のめね じ 3 に シ ー ル部材 4 を 介 し て封入栓 5 をね じ込み、 内部 に 作動液 を 封入 す る 。 ロ ー タ が片持 ち の場 合、 側板に軸端部は存在 しないので、 側板の軸心 部を内側に凹ませて作動液の入 口 を形成す る が、 作動液の入 口 を封入栓で密封する代 り に 、 入 口 を 瑢接で密封 し て も よ い。 As shown in FIG. 3, before welding the rotating shaft 11 to the shaft 14, drill a blind tapered hole 2 tapering to the pulley side, and insert it into the entrance of the hole. Cut thread 3. Heat pipe hydraulic fluid is injected into the taper hole 2, and the sealing fluid 5 is screwed into the female screw 3 at the inlet via the seal member 4 to seal the hydraulic fluid inside. . As a result, the rotary shaft 11 acts as a heat pipe, and a portion connected to the side surface 14 serves as a heat receiving portion, and an end portion on the pulley side serves as a heat radiating portion. The heat of the rotor body is transmitted from the side plate 14 to the heat receiving section of the heat pipe to evaporate the working fluid in the heat receiving section. The steamed working fluid passes through the center of the taper hole 2 and releases ripening at the ripening section at the rear end to be liquefied. Since the liquefied working fluid re-enters the heat receiving section along the inner peripheral wall of the taper hole 2, heat exchange of the heat pipe is quick, and the heat of the Q-ta 10 is efficient. It is often released to the outside. Therefore, the temperature of rotor 10 will not rise above the permissible limit As shown in Fig. 4, when the working fluid of the heat pipe is sealed not only in the inner part of the rotor 11 but also in the rotor 12 as well, Since the heat pipe 12 is a heat receiving section, the rotor 10 can be cooled more efficiently. In this case, the rotary shaft 11 is provided with the same tapered hole 2 as the embodiment of FIG. 3, but the thread 3 for the inlet of the hydraulic fluid is rotated by the rotation of the side plate 13 opposite to the pulley side.設 け Provided in 15. The sealing plug 5 is screwed into the screw 3 of the inlet via the sealing member 4, and the working fluid is sealed inside. When the rotor is cantilevered, there is no shaft end on the side plate, so the shaft center of the side plate is recessed inward to form the inlet for hydraulic fluid, but the inlet for hydraulic fluid is sealed. Instead of sealing with a stopper, the inlet may be sealed directly.
第 5 図に示すよ う に、 σ — タ术体 1 2 は シ リ コ ン カ ー バ ト 、 カ ー ボ ン、 ガラ ス等の無機材料 の ゥ イ ス カ ー F と 、 ス チ ー ル等の鉄系材料又は アル ミ ニ ゥ ム 、 ア ル ミ ニ ウ ム合金、 マグネ シ ウ ム合金 等の軽金属材料の母材金属 Μか らな る複合体か ら 製造す る こ と も で き る 。 ウ イ ス カ 一 は少 な く と も
5 0 % の空隙率を持つ程度に加圧成形されて ロ - タ *体 1 2 を鍀造す る金型に入れられる 。 そ の金 型に母材金属 Mの溶湯が注入されて ウ イ ス カ - F の空隙に溶浸 し 、 ゥ イ ス カー F と母材金属 か ら な る複合体の ロ ー タ:*:体 1 2 が製造され る 。 ロ ー タ 太体 1 2 の母材金属 Mは超高強度繊維の ゥ イ ス 力 - F で強化 されてい るため、 肉厚を従来の も の よ り も 薄 く する こ と ができ る ので、 重量は著 し く 軽 く な る 。 こ の よ う に製造されたロ ー タ 本体に あ らか じ め回転轴を設けた側板を溶接 して ロ ー タ と する 。 As shown in FIG. 5, the σ-turret 12 is made of inorganic material such as silicon carbide, carbon, glass, etc. It can also be manufactured from a ferrous material such as aluminum or a composite consisting of a base metal of a light metal material such as aluminum, an aluminum alloy, or a magnesium alloy. . Whiskers are at least It is press-molded to an extent having a porosity of 50% and put into a mold for producing a rotor * body 12. The molten metal of the base metal M is poured into the mold and infiltrated into the gap of the whisker-F, and the rotor of the composite composed of the whiskers F and the base metal: *: Body 12 is produced. Since the base metal M of the rotor thick body 12 is reinforced by the force-F of super-high-strength fiber, the wall thickness can be made thinner than before. However, the weight is significantly reduced. The rotor body manufactured in this way is welded to a side plate provided with a rotary shaft in advance to form a rotor.
母材金属 M に ア ル ミ ニ ウ ム 、 又はア ル ミ ニ ウ ム 合金を使用 し 、 表面、 特にぺ - ン溝に陽檁酸化被 膜処理 を施す と 、 重量が大幅に減少する だけでな く 、 ベ ー ン と の摺動特性も良好になる と い う効果 が得 られ る 。 If aluminum or an aluminum alloy is used for the base metal M and the surface, especially the groove, is subjected to anodization, the weight only decreases significantly. In addition, the effect of improving the sliding characteristics with the vane can be obtained.
ロ ー タ末体 1 2 は鍛造にょ リ 製造する こ と も 可 能であ る 。 こ の場合、 ウ イ ス カ 一は空隙率が 5 0 %程度残る よ ラ に加圧 されて鍍造用の金型に入れ られ、 その金型に母材金属の溶湯が注入 される 。
溶湯は ウ イ ス カ ー の空隙に溶浸 して ロ ー タ 术体素 材 と な リ 、 ついで こ の素材は鍛造されて 中空 — タ に な る 。 鍛造に ょ リ 製造された ο — タ 末体 1 2 ほ、 第 6 図に示す よ う に母材金属 Μの中の ウ イ ス カ ー F は鍛流線 に沿 っ て整列するか ら、 ロ ー タ * 体 1 2 の比強度は一層増大する。 The rotor end body 12 can also be manufactured by forging. In this case, the whiskers are pressed into a metal mold for plating so that the porosity remains about 50%, and the molten metal of the base metal is injected into the metal mold. The molten metal is infiltrated into the whisker voids to become the rotor body material, which is then forged into a hollow rotor. As shown in Fig. 6, the whiskers F in the base metal Μ are aligned along the forging line, as shown in Fig. 6. The specific strength of rotor * body 12 further increases.
第 7 図に示す よ う に 、 両側の回転轴 1 1 、 1 5 と 一体 の両側板 1 3 、 1 4 は シ リ コ ン カ ー バ イ ト 、 カ ー ボ ン 、 ガ ラ ス等の無機材料の ゥ イ ス カ ー F と 、 ス チ ー ル等の鉄系材料又はア ル ミ ニ ウ ム 、 ア ル ミ ニ ウ ム合金、 マ グ ネ シ ウ ム合金等の軽金属 材料の母材金属 Μか ら なる複合材か ら製作する こ と も で き る 。 ウ イ ス カ 一 は少な く と も 5 0 %の空 隙率を持つ程度に加圧成形されて両側の 回転軸 1 1 、 1 5 と 一体の両側板 1 3 、 1 4 を鋅造する 金 型に入れ られ る 。 そ の金型に母材軽金属 Μの溶湯 が注入 されて ウ イ ス カ ー Fの空隙に瑢浸 し 、 ウ イ ス カ ー F と 母材軽金属 Μから なる複合材の两側 の 回転轴 1 1 、 1 5 と 一体の両側板 1 3 、 1 4 が製 造 され る 。 両側の回転軸 1 1 、 1 5 と一体の両側
扳 1 3 、 1 4 は母 #金属 Mが超高強度繊維の ウ イ ス カ ー F で強化 され てい るため、 重量ほ非常に軽 いが強度も大 き い。 こ の よ う に製造された両側の 回転軸 ; 1 1 、 1 5 と 一体の両側扳 1 3 、 1 4 に別 途 に 製作 し た ロ ー タ 本体 を 溶接 し て ロ ー タ と す る 。 As shown in FIG. 7, both side plates 13 and 14 integral with the rotating members 11 and 15 on both sides are made of inorganic material such as silicon carbide, carbon, glass, etc. The material of the base metal of the material F, the iron-based material such as steel, or the light metal material such as aluminum, aluminum alloy, magnesium alloy, etc. It can also be manufactured from composite materials consisting of Μ. The whisker is press-formed so as to have a porosity of at least 50%, and is used to form both side plates 13 and 14 integrated with the rotating shafts 11 and 15 on both sides. It is put into a mold. The molten metal of the base metal light metal 注入 is injected into the mold and infiltrated into the gaps of the whiskers F. Both side plates 13 and 14 integral with 1 and 15 are manufactured. Both sides integral with rotating shafts 11 and 15 on both sides 扳 13 and 14 are very light in weight but high in strength because the mother metal #M is reinforced with whiskers F of ultra-high strength fiber. Rotor shafts on both sides manufactured in this way; 11 and 15 integrated with both sides 扳 13 and 14 Weld the rotor body separately manufactured to the rotor.
両側 の回転軸 と 両側板は锻造によ り 製造する こ と も可能であ る 。 こ の場合、 ウ イ ス カ 一 は空隙率 が最大 5 0 %程度残る よ う に加圧されて鍛造用の 金型に入れ られ、 そ の金型に母材金属の溶湯が注 入 され る 。 第 8 図に示すょ ラ に、 母材金属 Mの溶 湯はゥ イ ス 力 - F の空隙に溶浸 して両側 の回転轴 と一体の両側板の鏺造用素材 と な り 、 つ い で こ の 素材は鍛造 されて中空 ロ ー タ に な る 。 第 9 図に示 すよ う に、 鍛造に よ リ 製造された両側の回転轴 1 1 、 1 5 と 一体の両側扳 1 3 、 1 4 は母材軽金属 Mの中 の ウ イ ス カ ー F は篛流線に沿っ て整列す る か ら 、 回転铀 1 1 、 1 5 と一体の両側板 1 3 、 1 4 の比強度は一屠増大する。
産業上 の利用可能性 The rotating shafts on both sides and both side plates can also be manufactured by construction. In this case, the whisker is pressed into a forging die so that the porosity remains at a maximum of about 50%, and the molten metal of the base metal is poured into the die. . As shown in Fig. 8, the molten metal of the base metal M is infiltrated into the space of the coil force -F and becomes a material for the construction of both side plates integral with the rotating wheels on both sides. This material is forged into a hollow rotor. As shown in Fig. 9, both sides 轴 11, 15 integrated with forged parts リ 13, 14 リ manufactured by forging 扳 13, 14 are whiskers F in the base metal light metal M. Since the rods are aligned along the flow line, the specific strength of both side plates 13 and 14 integral with the rotary plates 11 and 15 increases by one slaughter. Industrial applicability
上記の通 り 、 *発明 のベー ン形ポ ン プ及びモ ー タ 用 ロ ー タ は軽量で あ る か ら 、 自動車エ ン ジ ン の 過紿機ゃ カ ー ク ー ラ ー の コ ン プ レ ッ サ と し て使用 され る ベ — ン形ポ ン プの ロ ー タ に適 し て い る 。
As described above, * Because the vane-type pump and motor rotor of the invention are light in weight, the excess amount of the car engine and the pump of the car cooler Suitable for vane pump rotors used as lesser.
Claims
請求の範囲 The scope of the claims
1 。 中空に形成 された ロ ー タ太体 ( 1 2 ) と 、 前 記 口 - タ 术体の両側 に溶接された両側板 ( 1 3 , 1 4 ) と 、 前記両側板の少な く と も 一方 に設け ら 5 れた回転軸 ( 1 1 ) と か らなるベー ン形ポ ン プ及 びモ ー タ用 ロ ー タ 。 1. A rotor thick body (12) formed in a hollow, two side plates (13, 14) welded to both sides of the opening-body, and at least one of the two side plates A vane-type pump consisting of five provided rotary shafts (11) and a motor rotor.
2 。 回転軸 C 1 1 ) は側扳 ( 1 4 ) と一体に形成 - された こ と を特徴 と する特許請求の範囲第 1 項 に 記載の ベー ン形ポ ン プ及びモ ー タ用 ロ ー タ 。 2. The vane pump and the motor rotor according to claim 1, characterized in that the rotary shaft (C11) is formed integrally with the side (14). .
10 3 。 回転軸 ( 1 1 ) ほ側扳 ( 1 4 ) に溶接 された こ と を特徵 と す る特許請求の範囲第 1 項に記載の ベ - ン形ポ ン プ及び モ ー タ用 口 ー タ 。 10 3. The vane-type pump and motor motor according to claim 1, characterized in that the vane-type pump and the motor are welded to the rotary shaft (11) near the side (14).
4 。 α - タ 术体 ( 1 2 ) の中空断面 と 相似形の補 強板 ( 1 6 ) が少な く と も一枚前記ロ ー タ 本体の 15 内周面 に ϋ定 された こ と を特徴 とする特許請求の 範囲第 1 項に記載の ベ - ン形ポ ンプ及びモ - タ 用 Four . At least one reinforcing plate (16) having a similar shape to the hollow cross section of the α-tor body (12) is fixed to the inner peripheral surface of the rotor body (15). For vane pumps and motors described in claim 1
Ώ タ Ώ
5 。 口 - タ 术体 ( 1 2 ) はゥ イ ス力 - ( F ) と 母 材金属 ( Μ) か ら な る 複合材であ る こ と を特徴 と 20 する特許請求の範囲 第 1 項記載のベ - ン形ポ ン プ REA OMPI く
及び モ ー タ 用 ロ ー タ 。 Five . 20. The method according to claim 1, wherein the mouth-body (12) is a composite material composed of a force- (F) and a base metal (Μ). Vane pump REA OMPI And motor rotor.
6 。 母材金属 ( M ) は ア ル ミ ニ ウ ム 又は ア ル ミ 二 ゥ ム 合金で あ り 、 α - タ の表面 に は陽極酸化被膜 処理が施 さ れ る こ と を 特徴 と す る特許請求 の 範 囲 第 5 項記載 の ベ - ン 形 ポ ン プ 及 び モ ー タ 用 ロ - タ 。 6. Claims characterized in that the base metal (M) is aluminum or an aluminum alloy, and the surface of α-ta is anodized. Vane-shaped pumps and motor rotors described in Paragraph 5.
7 。 少 な く と も 回転軸 ( 1 1 , 1 5 ) は 軽金属 の 母材 ( Μ ) を ゥ イ ス カ ー で強化 し た複合材 で あ る こ と を 特徴 と す る 特許請求の範囲第 1 項記載 の ベ ー ン形 ポ ン プ及 び モ ー タ 用 ロ ー タ 。 7. Claims characterized in that at least the rotating shaft (11, 15) is a composite material in which a light metal base material (で) is reinforced with discs. Vane type pump and motor rotor described in section.
8 。 側板 ( 1 3 , 1 ) は軽金属の母材 ( Μ ) を ゥ イ ス 力 - ( F ) で強ィ匕 した複合材で あ る こ と を 特徴 と す る 特許請求 の範囲第 7 項記載の ベ - ン 形 ポ ン プ及び モ ー タ 用 ロ ー タ 。 8. The side plate (13, 1) is characterized in that it is a composite material obtained by strengthening a base material (() of a light metal with a force of-(F). Vane type pump and motor rotor.
9 。 複 合材は ゥ イ ス 力 — ( F ) がロ ー タ 軸方 向 に 揃 っ て 配列す る よ う に 鍛造 された こ と を 特徴 と す る 特許請求 の 範 囲第 7 項又は第 8 項記載 の ベ - ン 形 ポ ン プ及び モ ー タ 用 ロ ー タ 。 9. Claims 7 or 8 characterized in that the composite material is forged so that the piecing force (F) is aligned in the direction of the rotor axis. Vane-shaped pump and motor rotor described in the section.
1 0 。 中 空 に 形成 さ れ た 口 - タ *体 ( 1 2 ) と 、 前 記 D - タ ^ 体 の 両 側 に 溶 接 さ れ た 両側板 ( 1
3 , 1 4 ) と 、 前記両側板の少な く と も 一方に設 け られた回転轴 ( 1 1 ) と 、 前記回転軸 に穿設 さ れた先細 リ の盲テ - パ穴 ( 2 ) から な り 、 内部 に ヒ ー ト パ イ プ作動液が密封されたこ と を特徵 と す る べ ー ン形ポ ン プ及びモ ー タ用 ロ ー タ 。 Ten . The mouth-ta * body (1 2) formed in the hollow space and the both side plates (1) welded to both sides of the D-ta ^ body 3, 14), a rotary shaft (11) provided on at least one of the side plates, and a blind tapered hole (2) of a tapered hole formed in the rotary shaft. In addition, vane pumps and motor rotors that feature heat pipe hydraulic fluid sealed inside.
1 1 。 盲テ ー パ穴の入 口 に シ ー ル部材 ( 4 ) を介 し て封入栓を 取付け 、 回転轴 ( 1 1 ) の内部 に ヒ 1 1. Attach the sealing stopper to the entrance of the blind taper hole via the sealing member (4), and insert the sealing plug inside the rotating shaft (11).
'一 ト パ イ プ作動液を密封 した こ と を特徴 と す る 特 'A special feature that the pipe hydraulic fluid is sealed.
'許請求の範囲第 1 0 項に記載のベ - ン形 ポ ン プ及 'Vane-shaped pumps as defined in claim 10
びモ ー タ 用 ロ ー タ 。 And motor rotor.
1 2 。 回転軸 ( 1 1 ) と反対側の側板 ( 1 3 ) の 回転軸 ( 1 5 ) に入 口 を形成 し、 前記入 口 に封入 栓 を 取付 け て 回転軸 ( 1 1 ) と ロ ー タ *体 C 1 2 ) の内部 に ヒ ー ト パ イ プ作動液を密封 し た こ と を特徴 と す る 特許請求の範囲第 1 0 項に 記載のベ ー ン形ポ ン プ及びモ ー タ 用 口 - タ。 - 1 2. An inlet is formed in the rotating shaft (15) of the side plate (13) opposite to the rotating shaft (11), and a sealing plug is attached to the inlet, and the rotating shaft (11) is connected to the rotor *. The vane pump and the motor according to claim 10, wherein a heat pipe hydraulic fluid is sealed inside the body C 12). Mouth-ta. -
O PI O PI
, O V VAT10
, O V VAT10
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19848490031 DE8490031U1 (en) | 1983-02-24 | 1984-02-22 | ROTOR FOR WING PUMPS AND MOTORS |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2861183A JPS59155592A (en) | 1983-02-24 | 1983-02-24 | Rotor for rotary hydraulic pump |
JP12875683A JPS6022091A (en) | 1983-07-16 | 1983-07-16 | Rotor for rotary fluid pump |
JP12875583A JPS6022090A (en) | 1983-07-16 | 1983-07-16 | Rotor for rotary fluid pump |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1984003329A1 true WO1984003329A1 (en) | 1984-08-30 |
Family
ID=27286258
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1984/000061 WO1984003329A1 (en) | 1983-02-24 | 1984-02-22 | Rotor for vane pump and motor |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0169904A1 (en) |
WO (1) | WO1984003329A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2549160A1 (en) * | 1983-07-16 | 1985-01-18 | Nippon Piston Ring Co Ltd | PROCESS FOR PRODUCING A ROTOR FOR A ROTATING FLUID PUMP |
DE3544143A1 (en) * | 1984-12-26 | 1986-07-24 | Nippon Piston Ring Co., Ltd., Tokio/Tokyo | ROTOR AND METHOD FOR PRODUCING SUCH A ROTOR FOR ROTATIONAL PUMPS |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4030702A1 (en) * | 1990-09-28 | 1992-04-02 | Leybold Ag | METHOD FOR PRODUCING A TURNING PISTON FOR A VACUUM PUMP AND TURNING PISTON PRODUCED BY THIS PROCESS |
US5395221A (en) * | 1993-03-18 | 1995-03-07 | Praxair S.T. Technology, Inc. | Carbide or boride coated rotor for a positive displacement motor or pump |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5010613U (en) * | 1973-05-30 | 1975-02-03 | ||
JPS5120727B1 (en) * | 1968-09-12 | 1976-06-28 | ||
JPS52116915A (en) * | 1976-03-25 | 1977-09-30 | Takashi Sakahashi | Rotary compressors |
JPS5541512U (en) * | 1978-09-08 | 1980-03-17 | ||
JPS5738791B2 (en) * | 1974-02-04 | 1982-08-17 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE307756C (en) * | ||||
US3552895A (en) * | 1969-05-14 | 1971-01-05 | Lear Siegler Inc | Dry rotary vane pump |
-
1984
- 1984-02-22 EP EP84900881A patent/EP0169904A1/en not_active Withdrawn
- 1984-02-22 WO PCT/JP1984/000061 patent/WO1984003329A1/en not_active Application Discontinuation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5120727B1 (en) * | 1968-09-12 | 1976-06-28 | ||
JPS5010613U (en) * | 1973-05-30 | 1975-02-03 | ||
JPS5738791B2 (en) * | 1974-02-04 | 1982-08-17 | ||
JPS52116915A (en) * | 1976-03-25 | 1977-09-30 | Takashi Sakahashi | Rotary compressors |
JPS5541512U (en) * | 1978-09-08 | 1980-03-17 |
Non-Patent Citations (2)
Title |
---|
Sangyo Zairyo Chosa Kenkyusho-hen "Nippon no Sangyo Zairyo" 30 March 1971 (30. 03. 71) Diamond Inc. p412-423 * |
See also references of EP0169904A4 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2549160A1 (en) * | 1983-07-16 | 1985-01-18 | Nippon Piston Ring Co Ltd | PROCESS FOR PRODUCING A ROTOR FOR A ROTATING FLUID PUMP |
DE3544143A1 (en) * | 1984-12-26 | 1986-07-24 | Nippon Piston Ring Co., Ltd., Tokio/Tokyo | ROTOR AND METHOD FOR PRODUCING SUCH A ROTOR FOR ROTATIONAL PUMPS |
Also Published As
Publication number | Publication date |
---|---|
EP0169904A1 (en) | 1986-02-05 |
EP0169904A4 (en) | 1985-10-17 |
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