JPS5987289A - Rotary pump - Google Patents
Rotary pumpInfo
- Publication number
- JPS5987289A JPS5987289A JP19944982A JP19944982A JPS5987289A JP S5987289 A JPS5987289 A JP S5987289A JP 19944982 A JP19944982 A JP 19944982A JP 19944982 A JP19944982 A JP 19944982A JP S5987289 A JPS5987289 A JP S5987289A
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- length
- pump chamber
- housing
- suction
- 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.)
- Pending
Links
- 230000010349 pulsation Effects 0.000 abstract description 6
- 239000012530 fluid Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000013459 approach Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/22—Rotary-piston machines or pumps of internal-axis type with equidirectional movement of co-operating members at the points of engagement, or with one of the co-operating members being stationary, the inner member having more teeth or tooth-equivalents than the outer member
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はロータリーポンプに係わり、更に詳しくけ正方
形状のポンプ室内に回転自在にローターを配設し、当該
ローターが１回転する間に吸入口と排出口が形成されて
いる４つの角部各に於いて、各々吸入した水等の流体全
３回排出し、ローター１回転当たりポンプ全体では合計
１２回排出するようにしたローターポンプに関する。[Detailed Description of the Invention] The present invention relates to a rotary pump, and more specifically, a rotor is rotatably disposed in a square pump chamber, and an inlet and an outlet are formed during one rotation of the rotor. The present invention relates to a rotor pump in which fluid such as water sucked in each of the four corners is discharged three times in total, and the entire pump is discharged a total of 12 times per rotation of the rotor.
従来ロータリ一式ポンプは種々開発されているかいずれ
も三角形状のローターが配設されるポンプ室内は新制ト
ロコイド曲線面であって三角形状のローターはローター
の各々の頂部をトロコイド曲線の壁面に接触しながら回
転している。その為にポンプ室内は常時３つに区分され
ている。そして上記ポンプ室内には吸入口と餠用口が一
つ配設されている。これらの結果ローターが１回転する
間に行なわれる排出回数は３回に限定される。従って脈
動か発生し易く、脈動を嫌う用途に使用することができ
ｆｘかった。Conventionally, various types of rotary complete pumps have been developed, but in all of them, the pump chamber in which the triangular rotor is installed has a new trochoidal curved surface. It's rotating. For this reason, the pump chamber is always divided into three parts. A suction port and a filling port are provided in the pump chamber. As a result, the number of discharges performed during one rotation of the rotor is limited to three. Therefore, pulsation is likely to occur, and it cannot be used in applications where pulsation is averse.
本発明は述上の点に鑑み成されたものであり、その旨と
する所は、四−ターへウジングの正方形状のポンプ室内
に、−辺の長さが上記ポンプ室の一辺の長さが上記ポン
プ室の一辺の長さと同一長さである正三角形のそれぞれ
の頂点全中心として上記正三角形の一辺の長さを・半径
とする三つの円を描き、これら三つの円弧の重なり合っ
た部分で形成される形状を有するローター？回転自在に
配設する七共に該ローターの中心に形成されている内歯
と、電動機のトルクを受けて回転するローター軸の外歯
？噛合せしめ、且つ上記ローターへウジングの４つの角
部に吸入口と排出口をそれぞれ設けたロータリーポンプ
であってその目的とする所は■ローターの各々の頂点が
各々の角部を通過する時に、各々の角部に於いて１回吸
入、排出を行なわせ、１つの頂点が１回転する間に４回
の吸入、排出を行なわせローターが回転する間に全体で
は１２回の吸入、排出を行なうことができるロータリー
ポンプを提供するにあり、又■ローター１回転当たりの
吸入及び排出回数を多くして脈動を可及的に少なくした
ロータリーポンプを提供するにある。The present invention has been made in view of the above-mentioned points, and is based on the fact that, in a square pump chamber of a four-terrestrial housing, the length of one side of the pump chamber is the same as the length of one side of the pump chamber. Draw three circles whose radius is the length of one side of the equilateral triangle as the center of each vertex of an equilateral triangle whose length is the same as the length of one side of the pump chamber, and draw the overlapping part of these three arcs. A rotor with a shape formed by? Internal teeth formed at the center of the rotor and external teeth of the rotor shaft that rotates in response to the torque of the electric motor. It is a rotary pump that is meshed with each other and has an inlet and an outlet at each of the four corners of the housing to the rotor, and its purpose is to: ■ When each vertex of the rotor passes through each corner, Suction and discharge are performed once at each corner, and suction and discharge are performed 4 times during one rotation of one vertex, making a total of 12 suctions and discharges while the rotor rotates. (1) To provide a rotary pump that can increase the number of intakes and discharges per rotation of the rotor to reduce pulsation as much as possible.
次Ｖ：、添付図１０ｊに従い本発明の実施例をロ゛ト述
する。Next, an embodiment of the present invention will be described in detail with reference to the attached FIG. 10j.
７ＶｉＣ於いて１はロータリーハウジングであり、１辺
の長さがＬである内壁２ａ、２ｂ、２ｃ。In 7ViC, 1 is a rotary housing, and each side has inner walls 2a, 2b, and 2c of length L.
２ｄより成る正方形状のポンプ室２を有し且つ当該ポン
プ室２の４つの角部３ａ、３ｂ、３ｃ。2d, and has four corners 3a, 3b, 3c of the pump chamber 2.
３ｄＶＣはそれぞれ吸入口４ａ、４ｂ、４ｃ。3dVC are inlets 4a, 4b, and 4c, respectively.
４ｄとＪ非出口５ａ、５ｂ、５ｏ、５ｄが６己設されて
いる。そして上記吸入口４ａ、４ｂ、４０゜４ｄと排出
口５ ａ、５ ｂ、５ ｃ、５ｄにＨ逆止弁６．７かそ
れぞれ配設されており、水空の流体の逆流を防止してい
る。4d, and six J non-exits 5a, 5b, 5o, and 5d. H check valves 6.7 are installed at the inlets 4a, 4b, 40° 4d and the outlets 5a, 5b, 5c, 5d, respectively, to prevent backflow of water and empty fluid. There is.
次いで８はローターであり、第２図に示す如く、上記正
方形状のポンプ室の１辺の長さＬと同一の長さを１辺り
する正三角形９の各々の頂点Ａ、Ｂ、、Ｏを中心として
半径りで円ａ／ 、Ｂ ／、０′を描きこれら３つの円
弧ｔ（、Ｂ／ 、Ｏ／が爪なり合った部分で形成される
形状を有している。この為に上記ローター８の３つの頂
点Ａ、Ｂ、、０からそれぞれの苅側にある弦１１１．ｂ
、Ｑまでの長さは全てＬ″Ｃあり、当然ながら各頂点は
正三角形９の頂点であるので各頂点Ａ、Ｂ１０間の長さ
くＡと３冊、Ｂと０間、０とＡ間）もＬである。次いで
１０ハ上記ローター８の中心穴の周面に形成されている
内歯であり、当該内歯１ｏは図示せざる電動機のトルク
を受けて回転するローター軸１１の外歯１２と噛合せし
められており、上記ローター軸１１の回転に連動して回
転する。Next, 8 is a rotor, and as shown in FIG. A circle a/, B/, 0' is drawn with the radius as the center, and these three arcs t(, B/, O/ have a shape formed by the claws of each other. For this reason, the rotor The strings 111.b on each side from the three vertices A, B, and 0 of 8.
, the length up to Q is all L''C, and of course each vertex is the vertex of an equilateral triangle 9, so the length between each vertex A and B10 is A and 3 volumes, between B and 0, and between 0 and A) 10 is also an internal tooth formed on the circumferential surface of the center hole of the rotor 8, and the internal tooth 1o is the external tooth 12 of the rotor shaft 11 which rotates under the torque of an electric motor (not shown). The rotor shaft 11 rotates in conjunction with the rotation of the rotor shaft 11.
又１３け吸入用配管であり４つの吸入口４ ａ、４ ｂ
。In addition, there are 13 suction pipes with 4 suction ports 4a and 4b.
.
４ｏ、４ｃｌに接続しているものであり、１４Ｉ／ｉ排
出用配管であって、４つの排出口５ａ、５ｂ。4o and 4cl, and is a 14I/i discharge piping with four discharge ports 5a and 5b.
５０．５ｄに接続している。Connected to 50.5d.
本発明はローターハウジングｌのポンプ室２とローター
８′ｆ！：上記の如く榴成したのでローター８の各々の
頂点Ａ、Ｂ、０又けこれら各々の頂点の対弦＆、ｂＸ（
１のいずれかの内４点が常に上記ポンプ室の内壁２ａ、
２ｂ、２ｃ、２ｄに接触しておりこのポンプ室２を常時
４つに区画している。即ちローター８が第３図中（イ）
図の位置にある時について説明すると、ローター８の頂
点Ａがポンプ室２の図中上部の内壁２ａ＆こ接つしてい
る時には図中下部の内壁２０にはローター８の弦ａが過
不足なく接つする。これは内壁２ａ、２ｂ間の長さがＬ
であり、弦ａは頂点Ａを中心に半径りで描かれた円Ａ′
の一部であるからである。この為に頂点人が図中上部の
内壁２ａのいずれかに接つしている時は弦ａは図中下部
の内壁２０に必ず接つしているものである。次に図中左
部の内壁２ｂには頂点Ｂが接つしており、従って図中右
部の内壁２ｄには頂点Ｂの苅弦すが接つしている。この
位置の場合頂点Ｂは図中左部の内壁２ｂを正に離れよう
とする位置にあり従って弦すも図中右部の内壁２ｄを離
れる寸前であるが、この弦すが図中右部の内壁２ｄを馴
れる時ｖ：、は該弦すに連続して頂点Ｃが図中右部の内
壁２ｄに接つする。従って図中左部の内壁２ｂについて
いえば、頂点Ｂの離接に連続して弦０が左部の内壁に接
触する。The present invention is based on the pump chamber 2 of the rotor housing l and the rotor 8'f! : Since it has been formed as described above, each vertex A, B, and 0 of the rotor 8 are paired with each of these vertices &, bX (
1, 4 points are always the inner wall 2a of the pump chamber,
2b, 2c, and 2d, and always divides this pump chamber 2 into four. That is, the rotor 8 is shown in Fig. 3 (a).
To explain when the rotor 8 is in the position shown in the figure, when the apex A of the rotor 8 is in contact with the inner wall 2a of the pump chamber 2 at the upper part of the figure, there is no excess or deficiency of the chord a of the rotor 8 on the inner wall 20 of the lower part of the figure. to touch. This means that the length between the inner walls 2a and 2b is L.
, and the chord a is a circle A' drawn with a radius around the vertex A.
This is because it is part of the For this reason, when the vertex person is in contact with any of the inner walls 2a in the upper part of the figure, the chord a is always in contact with the inner wall 20 in the lower part of the figure. Next, the apex B is in contact with the inner wall 2b on the left side of the figure, and therefore the bowstring of the apex B is in contact with the inner wall 2d on the right side of the figure. In this position, the vertex B is in a position where it is just about to leave the inner wall 2b on the left in the figure, and the string is about to leave the inner wall 2d on the right in the figure. When touching the inner wall 2d of v:, the apex C continuously touches the inner wall 2d on the right side of the figure. Therefore, regarding the inner wall 2b on the left in the figure, chord 0 comes into contact with the inner wall on the left following the separation and separation of the apex B.
上記した如く、ポンプ室２の各々の内壁２ａ。As described above, each inner wall 2a of the pump chamber 2.
２ｂ、２ｃ、２ｄにはローター８の各々の頂点ＡＳＢ、
Ｏ１又は各々の弦ａ、ｂ、ｏの内４点が常に過不足なく
接触しているので上記ポンプ室２内は常時４つに区画さ
れている。2b, 2c, and 2d each apex ASB of the rotor 8,
Since the four points of O1 or each of the strings a, b, and o are always in contact with each other in just the right amount, the inside of the pump chamber 2 is always divided into four sections.
次に上記１１，１η成に基き動作を説明する。Next, the operation will be explained based on the above 11,1η configuration.
第３図の（イ）図〜（チ）図に於いて頂点Ａの動作につ
いて説明すると、（イ）図に於いて頂点Ａがローター
ｆｆ１ＩＩ＋ １１のトルクにより矢印Ｆのように回転
すると、角部３ａを含む頂点Ａと弦０で区画された空間
は次第に小さくなっていく。即ち圧縮行程にあり排出口
５ａから水等の流体が排出される。To explain the operation of the apex A in figures (A) to (H) of Fig. 3, in figure (A), the apex A is the rotor.
When it rotates in the direction of arrow F due to the torque of ff1II+11, the space defined by the vertex A including the corner 3a and the chord 0 gradually becomes smaller. That is, it is in a compression stroke and fluid such as water is discharged from the discharge port 5a.
この時に吸入口４ａに配設されている逆止弁６の動作に
より吸入口４ａから水等の流体が排出されないのけ勿論
である。このようにしてローター８が回転して頂点Ａが
（ロ）図の位（：＋ｔ、ｖｃきた時に角部３ａの圧縮ｆ
ｆ１Ｊち排出が完了される。この時に角部３ａを含む空
間は弦すと弦０によって区画されている。次いでロータ
ー８が矢印Ｆのように回転し、それによυ角部３ａを含
む空間は頂点Ａと弦すによって区画されて、その区画さ
れて、その区画された空間は次第に大きくなっていく。Of course, at this time, fluid such as water is not discharged from the suction port 4a due to the operation of the check valve 6 disposed at the suction port 4a. In this way, when the rotor 8 rotates and the apex A reaches the position shown in the figure (b) (: +t, vc), the compression f of the corner 3a
After f1J, ejection is completed. At this time, the space including the corner 3a is divided by the strings 0 and 0. Next, the rotor 8 rotates in the direction of arrow F, whereby the space including the υ corner 3a is partitioned by the apex A and the string, and the partitioned space gradually becomes larger.
即ち角部３ａを含む空間は吸入状態になり吸入口４ａか
ら水等の流体を吸入する。That is, the space including the corner portion 3a enters the suction state and sucks fluid such as water from the suction port 4a.
この時に排出口５ａは逆止弁７によって閉鎖せしめられ
ている。このように角部３ａを含む空間は頂点Ａが接近
する時に排出動作し遠ざかる時に吸入動作をするもので
あり、この角部３ａを含む空間の排出、吸入動作は他の
頂点Ｂ、 ０が接近し遠さ゛かる時にも同様に行なわれ
る。At this time, the discharge port 5a is closed by the check valve 7. In this way, the space including the corner 3a performs an evacuation operation when the vertex A approaches, and an inhalation action when it moves away, and the evacuation and intake actions of the space containing this corner 3a are performed when the other vertices B and 0 approach. The same thing is done when you are far away.
次いで、頂点Ａは角部３ｂで水等の流体を（ハ）図〜（
ホ）図に示す如く排出、吸入せしめる。このように頂点
Ａは１回転して元の（イ）図の位１１″）に戻る間に４
つの角部３ａ、３ｂ、３ｃ、３ｄで水等の流体を１回ず
つ排出、吸入せしめ合計４回の排出、吸入を行なうもの
で冴）る。これは他の頂点Ｂ、Ｏがそれぞれの角部３ａ
、３ｂ、３ａ。Next, the apex A conducts fluid such as water at the corner 3b (c).
e) Discharge and inhale as shown in the figure. In this way, vertex A rotates once and returns to the original position 11'' in the figure (A), while
The four corners 3a, 3b, 3c, and 3d discharge and inhale fluid such as water once each, for a total of four times. This means that the other vertices B and O are each corner 3a
, 3b, 3a.
３ｄを通る時にも同様であり、ロークー１回転あたり１
２回の排出動作を行なうものである。又ローター８の頂
点ＡＳＢ、Ｏは１２００［１１八角部３ａ、３ｂ、３ｏ
、３ｄは９０°ＦＣ１個それぞれ配設されているので、
ローター８が３０℃転する毎に角部３ａ、３ｂ、３ｏ、
３ｄで規則正しく順番に排出、吸入が行なわれ、２つの
角部で同時に吸入や排出が行なわれる仁とがなく脈動の
少ない排出、吸入が行なわれるものである。The same is true when passing through 3d, and 1 rotation per low rotation.
The discharge operation is performed twice. Also, the apexes ASB and O of the rotor 8 are 1200 [11 octagonal parts 3a, 3b, 3o
, 3d have one 90°FC each, so
Every time the rotor 8 rotates by 30 degrees, the corners 3a, 3b, 3o,
Ejection and inhalation are performed in order in a regular manner in 3d, and there is no simultaneous inhalation and evacuation at two corners, and evacuation and inhalation are performed with little pulsation.
以上げ詳述した如く本発明はローターハウジング１の１
辺の長さＬとする正方形状のポンプ室２内ＶＣ１辺の長
さか上記ポンプ室２の１辺の長さＬと同一長さＬである
正三角形のそれぞれの頂点Ａ、Ｅ、Ｏ′ｆｉ：中心とし
て半径りとする三つの円Ａ′、Ｂ′、０′を描き、これ
ら三つの円弧Ａ′、Ｂ／、Ｏ／の重なり合った部分で形
成される形状を有するローター８を回転自在に配設する
と共に該ローター８の中心に形成されている内歯１ｏと
電動機のトルク２受けて回転するローター軸１１の外歯
１２ヲ噛合せしめ、且つ上記ローターハウジング１の４
つの角部３ａ、３ｂ、３ｏ、３ｄに吸入口４ａ、４ｂ、
４ｏ、４ｄと排出口５ａ。As described above in detail, the present invention provides one of the rotor housings 1.
Each vertex A, E, O'fi of an equilateral triangle whose length L is the same as the length L of one side of the pump chamber 2 or the length L of one side of the square pump chamber 2 whose side length is L. : Draw three circles A', B', 0' with radii as the center, and freely rotate the rotor 8, which has a shape formed by the overlapping parts of these three arcs A', B/, O/. The internal teeth 1o formed at the center of the rotor 8 are engaged with the external teeth 12 of the rotor shaft 11 which rotates in response to the torque 2 of the electric motor.
Suction ports 4a, 4b at the four corners 3a, 3b, 3o, 3d,
4o, 4d and outlet 5a.
５ｂ、５ｏ、５ａをそれぞれ設けた四−タリーポンプな
ので、■ローラミ８の各々の頂点Ａ％ＢＳＯか１回転す
る時にポンプ室２のそれぞれの角部３ａ、３ｂ、３ｃ、
３ｄでそれぞれ１回ずつ損出動作、吸入動作を行なわせ
、ローター８が１回転する間に合計１２回の排出動作、
吸入動作を行なうことができるロータリーポンプを提供
することができ、又■ローター１回転当たりの排出回数
全長くした脈動の少ないロータリーポンプを提供する等
稍々の利点を有する。Since it is a four-tally pump with 5b, 5o, and 5a, respectively, when the apex A%BSO of each roller arm 8 rotates once, each corner 3a, 3b, 3c,
3d, a loss operation and a suction operation are performed once each, and a total of 12 discharge operations are performed during one rotation of the rotor 8.
It has various advantages such as being able to provide a rotary pump that can perform a suction operation, and (2) providing a rotary pump that has less pulsation and has a longer total number of discharges per rotation of the rotor.
原料図面は本発明の実施例を示し、ローターハウジング
の断面図、第２図はローターの形状を説明する図、第３
図（イ）〜ｆｙ−）は本発明のロータリーポンプの動作
説明図で２）る。
尚図中、１・・・・ロータリーハウジング、２・・・・
ポンプ室、３ａ、３ｂ、３ｏ、３ｄ−−角部、４ａ、４
ｂ、 ４ｏ、 ４ｄ−＝吸入口、５ａ、５ｂ。
５０．５ｄ・・ 排出口、８・・・・ローター、１ｏ・
・・・内歯、１１・・・・四−ター軸、１２・・・・ロ
ーター軸、Ｌ・・・・ポンプ室内の１辺の長さ及び円弧
Ａ′、Ｂ′、０′の半径、Ａ、Ｂ、Ｏ・・・・正三角形
の頂点Ａ′、Ｂ、Ｏ・・・・頂点ＡＳＢ、（Ｊ全中心に
半径りで描いた円弧をそれぞｎ示している。The raw material drawings show examples of the present invention, and include a sectional view of the rotor housing, Figure 2 is a diagram explaining the shape of the rotor, and Figure 3 is a diagram explaining the shape of the rotor.
Figures (a) to fy-) are explanatory views of the operation of the rotary pump of the present invention. In the figure, 1... rotary housing, 2...
Pump chamber, 3a, 3b, 3o, 3d--corner, 4a, 4
b, 4o, 4d-=inlet, 5a, 5b. 50.5d... Discharge port, 8... Rotor, 1o...
...internal teeth, 11...four-tar axis, 12...rotor axis, L...length of one side in the pump chamber and radius of arcs A', B', and 0', A, B, O... Vertices A', B, O... Vertices ASB, (J) of an equilateral triangle.
Claims (1)
のポンプ室２内に１辺の長さが上記ポンプ室２の１辺の
長さＬと同一長さＬである正三角形９のそれぞれの頂点
Ａ、Ｂ、Ｏ全中心として半径りとする三つの円ｘ、ｍ、
σを描きこれら三つの円弧Ｒ、ｍ 、 ｏ’の爪なり合
った部分で形成される形状を有するローター８を回転自
在に配設すると共に該ローター８の中心に形成されてい
る内歯１０と、電動機のトルクを受けて回転するロータ
ー軸１１の外歯１２を噛合せしめ、且つ上記ローターハ
ウジングｌの４つの角部３ａ。 ３ｂ、３ｏ、３ｄに吸入口４ａ、４ｂ、４ｏ、４ｄと排
出口５ａ、５ｂ、５ｏ、５ｄをそれぞれ設けたいことを
特徴とするロータリーポンプ。[Claims] The length of one side of the rotary housing 1 is the same as the length L of one side of the pump chamber 2 in a square pump chamber 2, where the length of one side of the rotary housing 1 is L. Three circles x, m, whose radii are all centers of vertices A, B, and O of equilateral triangle 9,
A rotor 8 having a shape formed by the claw-like portions of these three arcs R, m, and o' is rotatably disposed, and an internal tooth 10 formed at the center of the rotor 8 is provided. , four corner portions 3a of the rotor housing l that mesh with the external teeth 12 of the rotor shaft 11 that rotates under the torque of the electric motor. A rotary pump characterized in that suction ports 4a, 4b, 4o, 4d and discharge ports 5a, 5b, 5o, 5d are provided at 3b, 3o, 3d, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19944982A JPS5987289A (en) | 1982-11-12 | 1982-11-12 | Rotary pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19944982A JPS5987289A (en) | 1982-11-12 | 1982-11-12 | Rotary pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5987289A true JPS5987289A (en) | 1984-05-19 |
Family
ID=16407995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19944982A Pending JPS5987289A (en) | 1982-11-12 | 1982-11-12 | Rotary pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5987289A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07167064A (en) * | 1993-12-17 | 1995-07-04 | Kazuichi Ito | Rotary machine |
| US20100054979A1 (en) * | 2006-12-26 | 2010-03-04 | Sergei Ivanovich Nefedov | Positive-displacement machine design (variants) |
-
1982
- 1982-11-12 JP JP19944982A patent/JPS5987289A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07167064A (en) * | 1993-12-17 | 1995-07-04 | Kazuichi Ito | Rotary machine |
| US20100054979A1 (en) * | 2006-12-26 | 2010-03-04 | Sergei Ivanovich Nefedov | Positive-displacement machine design (variants) |
| US8128389B2 (en) * | 2006-12-26 | 2012-03-06 | Sergei Ivanovich Nefedov | Positive-displacement machine design (variants) |
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