JPS5884231A - Fluid coupling - Google Patents

Fluid coupling

Info

Publication number
JPS5884231A
JPS5884231A JP18041981A JP18041981A JPS5884231A JP S5884231 A JPS5884231 A JP S5884231A JP 18041981 A JP18041981 A JP 18041981A JP 18041981 A JP18041981 A JP 18041981A JP S5884231 A JPS5884231 A JP S5884231A
Authority
JP
Japan
Prior art keywords
water
pump
tank
water supply
pipe
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
Application number
JP18041981A
Other languages
Japanese (ja)
Other versions
JPS626131B2 (en
Inventor
Hiroyuki Fujimura
宏幸 藤村
Shigeru Otake
茂 大竹
Yoshio Sato
良男 佐藤
Kazuo Hattori
和男 服部
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ebara Corp
Original Assignee
Ebara Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ebara Corp filed Critical Ebara Corp
Priority to JP18041981A priority Critical patent/JPS5884231A/en
Publication of JPS5884231A publication Critical patent/JPS5884231A/en
Publication of JPS626131B2 publication Critical patent/JPS626131B2/ja
Granted legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D33/00Rotary fluid couplings or clutches of the hydrokinetic type
    • F16D33/06Rotary fluid couplings or clutches of the hydrokinetic type controlled by changing the amount of liquid in the working circuit
    • F16D33/16Rotary fluid couplings or clutches of the hydrokinetic type controlled by changing the amount of liquid in the working circuit by means arranged externally of the coupling or clutch

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Control Of Non-Positive-Displacement Pumps (AREA)

Abstract

PURPOSE:To simplify the construction and action of a restrictor valve and effectuate the accurate control of the rate of flow, by utilizing some of a pump- handled fluid to work a fluid coupling and by keeping constant the pressure of a supplied fluid entering into the restrictor valve installed in the water supply pipe of the coupling. CONSTITUTION:Priming water is put in a tank 30 while a solenoid valve 35 remains closed. After that, a prime mover 16 is started and a solenoid valve 42 is opened. As a result, the priming water is conducted to a water supply port 24 through a restrictor valve 37 and then flows into an impeller 18, a runner 20 and a casing 19. When the quantity of water in the impeller 18 has increased, the runner 20 rotates to turn a pump 21. When the pump 21 is turned to an enough speed, water in a sucked water tank 28 is sucked up and then sent out of a discharge pipe 31 and conducted to the tank 30 through a water intake pipe 32. Since the water level in the tank 30 is kept constant, water of constant pressure is sent to a water supply pipe 36 upstream to the restrictor valve 37.

Description

【発明の詳細な説明】 本発明は、原動機とポンプとの間に装備して回転力を伝
える流体継手に関するものである。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a fluid coupling installed between a prime mover and a pump to transmit rotational force.

従来の代表的な流体継手としては、第1図に示すように
、原動機軸1にカップリング2を介して入力軸3を連結
し、該入力軸3を軸受4,4aにより支承すると共にそ
の一部にインペラ5を取付け、一方被動機軸6には同様
にカップリング7を介して出力軸8を連結し、該出力軸
8を軸受919al”:。
As shown in FIG. 1, a conventional typical fluid coupling connects an input shaft 3 to a motor shaft 1 via a coupling 2, supports the input shaft 3 by bearings 4, 4a, and supports one of the input shafts. The impeller 5 is attached to the driven shaft 6, and the output shaft 8 is similarly connected to the driven shaft 6 via a coupling 7, and the output shaft 8 is connected to a bearing 919al'':.

て支承すると共にランチ10を取付け、上記インペラ5
に取付けたケーシング11内に油タンク12内の作動油
を油ポンプ13により給油口14から供給すると共に、
調速機(図示せず)と連動するスクープチューブ15に
より油タンク12C:戻す構造のものがあり、このスク
ープチューブ15の設定位置(二よりケーシング11内
の油量を変化させ、被動機軸6の回転数を制御す一部る
ようになっている。
At the same time as supporting the impeller 5, the launch 10 is attached.
The hydraulic oil in the oil tank 12 is supplied from the oil filler port 14 by the oil pump 13 into the casing 11 attached to the
There is a structure in which the oil tank 12C is returned to the oil tank 12C by means of a scoop tube 15 that is linked to a speed governor (not shown). There is a part that controls the rotation speed.

しかし、この種の従来の流体継手は、作動油を循環使用
しているため上記油ポンプの他題;オイルクーラーも必
要とするばかりでなく、作動油の定期的な交換を要し、
またスクープチューブを回転中のケーシング内で作動さ
せて被動機軸の回転数制御を行なっているため、構造が
複雑となり組立に手間がかかるばかりでなく破損事故を
招き易い欠点がありた。
However, since this type of conventional fluid coupling uses hydraulic oil in circulation, it has problems with the oil pump mentioned above; it not only requires an oil cooler, but also requires periodic replacement of the hydraulic oil.
Furthermore, since the scoop tube is operated within the rotating casing to control the rotational speed of the driven shaft, the structure is complicated, which not only requires time and effort to assemble, but also tends to cause breakage.

以上のような問題点を部分的題:解決するものとして、
従来例えば被動機の扱い流体の一部を作動流体として利
用し、特別のポンプやクーラーのない流体継手があるが
、スクープチューブ(:よる制御を行なっているため構
造が複雑で組立、保守が依然としぞ困難であった。
As a partial solution to the above problems,
Conventionally, for example, there are fluid couplings that use part of the fluid handled by the driven machine as the working fluid and do not require a special pump or cooler, but because they are controlled by scoop tubes, the structure is complicated and assembly and maintenance are still difficult. It was extremely difficult.

また、従来公知の流体継手の中には、インペラ内への供
給油量を制御するものもあったが、制御機構が複雑であ
ったり、また所定の流体を循環使用しているため、特別
のポンプやクーラー等を必要としてコンパクトに構成で
きない欠点があった。
In addition, some conventionally known fluid couplings control the amount of oil supplied into the impeller, but the control mechanism is complicated, and because a predetermined fluid is circulated, special This had the disadvantage that it required pumps, coolers, etc., and could not be constructed compactly.

本発明は、被動機であるポンプの扱い流体の一部を流体
継手に供給して作動流体として利用すると共に、その給
水管に設置された絞り弁::入る供給流体を定圧力状態
にしておくこと(二より、該絞り弁の構成及び作用を簡
素化し、高精度の流量制御が出来るばかりでなく、ポン
プの扱い流体な′積極的に利用し得る流体継手を提供す
ることを目的とするものである。
The present invention supplies part of the fluid handled by the pump, which is a driven machine, to a fluid coupling and uses it as a working fluid, and at the same time, a throttle valve installed in the water supply pipe maintains the incoming supply fluid at a constant pressure. (Secondly, the purpose is to simplify the configuration and operation of the throttle valve, and to provide a fluid coupling that not only enables highly accurate flow control but also can be actively used as the fluid handled by the pump. It is.

本発明は、原動機とポンプとの間に装備して回転力を伝
える流体継手において、該ポンプから吐出される扱い流
体の一部を定圧力で給水管に送水すると共に、該給水管
を流体継手の供給口に接続し、該給水管の途中に絞り弁
を取付け、上記ポンプの吐出圧又は吐出流量を検出して
該絞り弁を自動的に作動せしめることを特徴とする流体
継手である。
The present invention provides a fluid coupling installed between a prime mover and a pump to transmit rotational force, in which a part of the fluid discharged from the pump is sent to a water supply pipe at a constant pressure, and the water supply pipe is connected to the fluid coupling. This fluid coupling is connected to a supply port of the water supply pipe, a throttle valve is installed in the middle of the water supply pipe, and the throttle valve is automatically operated by detecting the discharge pressure or discharge flow rate of the pump.

以下、本発明の実施例について図面を参照しながら説明
する。第2図において16は例えば定速型電動機から成
る原動機であって、その回転軸17の先端部:二はイン
ペラ18が取付けられている。該インペラ18の外周フ
ランジ部にはケーシング19が付設されていて、インペ
ラ18と一体となって回転するようになっている。該ケ
ーシング19の外周部には噴出ノズル孔19蹴が数個穿
設されていて、内部に充填された作動流体(本実施例で
は水)を噴出するようになっている。加はランチであっ
て被動機であるポンプ乙の回転軸22の先端部に取付け
られ、一体になって回転するようになっている。
Embodiments of the present invention will be described below with reference to the drawings. In FIG. 2, reference numeral 16 denotes a prime mover consisting of, for example, a constant speed electric motor, and an impeller 18 is attached to the distal end of a rotating shaft 17. A casing 19 is attached to the outer periphery flange of the impeller 18, and rotates together with the impeller 18. Several ejection nozzle holes 19 are bored in the outer circumference of the casing 19, and the working fluid (water in this embodiment) filled inside is ejected. A is a launch and is attached to the tip of the rotating shaft 22 of the driven machine, the pump O, so that they rotate together.

上記インペラ18.ケーシング19及びランナ加等はボ
ックス器により囲まれてい“て、噴出ノズル孔19鳳か
ら噴出される水の飛散を防止している。該ボックス23
の側面には給水口Uが設けられていて、上記インペラ1
8のボス部(=あけた薮゛個の給水孔18aを通ってイ
ンペラ18.ランナ加、ケーシング19の内部に給水す
るようになっている。また、該ボックス23の両側部に
は前記回転軸17及び22が各々貫通しており、上記噴
出水の漏れを防止するため、ラビリンス構造となった軸
封装置筋が設けられている。
The above impeller 18. The casing 19, the runner, etc. are surrounded by a box to prevent the water ejected from the ejection nozzle hole 19 from scattering.The box 23
A water supply port U is provided on the side of the impeller 1.
Water is supplied to the inside of the impeller 18, runner, and casing 19 through the boss portion 8 (=opened water supply holes 18a). 17 and 22 pass through each of them, and in order to prevent the above-mentioned jet water from leaking, a shaft sealing device muscle having a labyrinth structure is provided.

ボックス23の下部はドレンタンク26となっていて、
上記噴出ノズル孔191から噴出した水をドレンとして
溜め、戻り配管27を介して上記ポンプ21の吸込水槽
詔に排出されるようになっている。この戻り配管27の
下流側端部は2点鎖線で示すようにポンプ21の吸込管
29に接続しても良い。
The lower part of the box 23 is a drain tank 26,
The water ejected from the ejection nozzle hole 191 is stored as a drain and is discharged to the suction water tank of the pump 21 via the return pipe 27. The downstream end of the return pipe 27 may be connected to the suction pipe 29 of the pump 21 as shown by the two-dot chain line.

30はタンクであって、吐出管31から分岐した取水管
32により吐出水の一部を収水するようになっている。
Reference numeral 30 denotes a tank, which collects a portion of discharged water through a water intake pipe 32 branched from a discharge pipe 31.

該取水管32の途中にはオリフィス33が設けられてい
て、上記タンク(資)に必要量の水を送水するようにな
っている。該タンク(9)はオーバー70ニ又はLIC
等により常時一定水位の水が貯溜されるようになってい
て、その余水はドレン配管Uを通ってドレンタン2uに
排出されるようになっている。該ドレン配管あの排出口
は吸込水槽四又は吸込管四に接続しても良い。タンク4
oの底部には電磁弁部を介して給水管謡が接続されてお
り、該給水管圀の途中には絞り弁37が配縁されている
An orifice 33 is provided in the middle of the water intake pipe 32 to feed the required amount of water to the tank. The tank (9) is over 70 ni or LIC
Water is always stored at a constant level, and the surplus water is discharged to the drain tank 2u through the drain pipe U. The outlet of the drain pipe may be connected to the suction water tank 4 or the suction pipe 4. tank 4
A water supply pipe is connected to the bottom of the water supply pipe via an electromagnetic valve section, and a throttle valve 37 is arranged in the middle of the water supply pipe.

該絞り弁37は圧力検出管路間を通じて検出されるポン
プ21の吐出圧力により、その開度な変化されるよう(
;なっている。上記給水管凹の下流側端部は給水ロスに
接続されている。羽、39は圧力針である。
The opening of the throttle valve 37 is changed by the discharge pressure of the pump 21 detected through the pressure detection pipe (
; has become. The downstream end of the water supply pipe recess is connected to the water supply loss. Feather 39 is a pressure needle.

従って、本実施例装置によりポンプ21の吐出圧カ一定
制御運転を行なう場合、先ず電磁弁35を閉とした状態
で、タンク(資)に呼び水を入れておく。
Therefore, when performing constant discharge pressure control operation of the pump 21 using the device of this embodiment, first, the solenoid valve 35 is closed and priming water is put into the tank.

尚、この呼び水は両度ポンプ21の運転を行なった後は
、ポンプ21の停止の都度上記電磁弁あを閉とすること
により、タンク30内に常に貯水されるので、起動ごと
に呼び水準備をする必要がない。
After the pump 21 has been operated, this priming water is always stored in the tank 30 by closing the solenoid valve each time the pump 21 is stopped, so prepare the priming water each time the pump 21 is started. There's no need to.

以上のように呼び水の準備をした後、原動機16を起動
させ、電磁弁42を開くと、該呼び水は絞り弁37を通
って給水口24:;送られインペラ18.ランナ20.
ケージング19内に流入する。インペラ18内の水量が
増大するとランナ加が回転しポンプ21を回転させる。
After preparing the priming water as described above, when the prime mover 16 is started and the solenoid valve 42 is opened, the priming water is sent through the throttle valve 37 to the water supply port 24: to the impeller 18. Runner 20.
It flows into the casing 19. When the amount of water in the impeller 18 increases, the runner rotates, causing the pump 21 to rotate.

ポンプ21が本格的に回転し始めると吸込水槽n内の水
が吸上げられ吐出管31から吐出される。吐出管31か
らの圧力水の一部は取水管32からタンク3o(:送水
される。前述のようζ;、タンク父は常に一定水位が保
たれているので、絞り弁37より上流側の給水管%には
常に一一圧力の水が送られるようになっている。絞り弁
37は検出管路間を介して吐出管31内の吐出圧力を検
知し、吐出圧力が設定圧力より高ければその開度な絞り
、逆に低ければ開いて、給水ロスへの流量を制御し、ポ
ンプ21の回転数を制御してその吐出圧を設定値にコン
トロールする。
When the pump 21 begins to rotate in earnest, water in the suction water tank n is sucked up and discharged from the discharge pipe 31. A part of the pressure water from the discharge pipe 31 is sent from the water intake pipe 32 to the tank 3o. As mentioned above, since the water level in the tank is always maintained at a constant level, the water supply upstream from the throttle valve 37 is Water at a pressure of 11 is always sent to the pipe.The throttle valve 37 detects the discharge pressure in the discharge pipe 31 through the detection pipe line, and if the discharge pressure is higher than the set pressure, the The throttle is opened when the degree of opening is low, and the flow rate to the water supply loss is controlled, and the rotation speed of the pump 21 is controlled to control its discharge pressure to a set value.

以上のように、本実施例ではタンク蜀により一度給水管
36内の圧力を一定にした後、絞り弁37により流量を
制御するようになっている。このように、給水管加の圧
力を一定にする方法としては上記タンク(資)による以
外に、例えば第2図で鎖線で示すように給水管部の上流
端を直接吐出管31に接続し、定圧弁旬を介装させるか
、或いはポンプ21が渦巻ポンプの場合には、そのバラ
ンスホール室に取出口を設けてここから略一定圧力の水
を取出し、給水管部に接続するようにしても良い。尚、
この圧力水はポンプ押込みの場合には吸引例から取出し
ても良い。
As described above, in this embodiment, after the pressure inside the water supply pipe 36 is made constant by the tank valve, the flow rate is controlled by the throttle valve 37. In this way, as a method of keeping the pressure applied to the water supply pipe constant, in addition to using the above-mentioned tank, for example, as shown by the chain line in FIG. A constant pressure valve may be installed, or if the pump 21 is a centrifugal pump, an outlet may be provided in the balance hole chamber from which water at a substantially constant pressure may be taken out and connected to the water supply pipe. good. still,
This pressurized water may be taken out from the suction case when pumping.

また、吐出圧力を電気信号に変換し、絞り弁37を制御
しても良く、更に吐出流量を検出し、制御したりスクー
プデユープを並設する等の改変が可能である。
Further, the throttle valve 37 may be controlled by converting the discharge pressure into an electric signal, and modifications such as detecting and controlling the discharge flow rate or arranging scoop dups in parallel are possible.

以上のように本発明は、原動機とポンプとの間に装備し
て回転力を伝える流体継手において、該ポンプから吐出
される扱い流体の一部を定圧力で給水管に送水すると共
に、該給水管を流体継手の供給口に接続し、該給水管の
途中に絞り弁を取付け、上記ポンプの吐出圧又は吐出流
量を検出して、該絞り弁を自動的に作動せしめることを
特徴とする流体継手であるので、絞り弁の構成が簡素に
なり保守が容易となるばかりでなく、流量制御の精度が
向上する等の効果がある。
As described above, the present invention provides a fluid coupling that is installed between a prime mover and a pump to transmit rotational force, in which a part of the fluid discharged from the pump is sent to a water supply pipe at a constant pressure, and the water supply A fluid characterized in that a pipe is connected to a supply port of a fluid coupling, a throttle valve is installed in the middle of the water supply pipe, and the discharge pressure or discharge flow rate of the pump is detected to automatically operate the throttle valve. Since it is a joint, it not only simplifies the configuration of the throttle valve and facilitates maintenance, but also improves the accuracy of flow rate control.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は従来の流体継手の断面図、第2図は本発明の流
体継手及びその回路装置の第1の実施例を示す説明図で
ある。 16・・・原動機、17・・・回転軸、18・・・イン
ペラ、18ト・給水孔、19・・・ケーシング、19a
・・・噴出ノズル孔、加・・・ランナ、21・・・ポン
プ、n・・・回転軸、23・・・ボックス、U・・・給
水口、25・・・軸封装置、謳・・・ドレンタンク、n
・・・戻り配管、訪・・・吸込水槽、四・・・吸込管、
30・・・タンク、31・・・吐出管、32・・・取水
管、33・・・オリフィス、あ・・・ドレン配管、35
・・・電磁弁、36・・・給水管、37・・・絞り弁、
羽、39・・・圧力針、40・・・定圧弁。 特許出願人  株式会社 荏原製作所
FIG. 1 is a sectional view of a conventional fluid coupling, and FIG. 2 is an explanatory diagram showing a first embodiment of the fluid coupling and its circuit device according to the present invention. 16... Prime mover, 17... Rotating shaft, 18... Impeller, 18 water supply hole, 19... Casing, 19a
...Ejection nozzle hole, processing...Runner, 21...Pump, n...Rotating shaft, 23...Box, U...Water supply port, 25...Shaft sealing device, song...・Drain tank, n
...Return piping, Visit...Suction water tank, Fourth...Suction pipe,
30...tank, 31...discharge pipe, 32...intake pipe, 33...orifice, ah...drain pipe, 35
... Solenoid valve, 36 ... Water supply pipe, 37 ... Throttle valve,
Feather, 39...pressure needle, 40...constant pressure valve. Patent applicant: Ebara Corporation

Claims (1)

【特許請求の範囲】[Claims] 1、 原動機とポンプとの間:二装備して回転力を伝え
る流体継手において、該ポンプから吐出される扱い流体
の一部を定圧力で給水管に送水すると共に、該給水管を
流体継手の供給口(=接続し、該給水管の途中に絞り弁
を取付け、上記ポンプの吐出圧又は吐出流量を検出して
該絞り弁を自動的に作動せしめることを特徴とする流体
継手。
1. Between the prime mover and the pump: In a fluid coupling that transmits rotational force, a part of the fluid discharged from the pump is sent to the water supply pipe at a constant pressure, and the water supply pipe is connected to the fluid coupling. A fluid coupling characterized in that a supply port is connected, a throttle valve is installed in the middle of the water supply pipe, and the throttle valve is automatically operated by detecting the discharge pressure or discharge flow rate of the pump.
JP18041981A 1981-11-12 1981-11-12 Fluid coupling Granted JPS5884231A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18041981A JPS5884231A (en) 1981-11-12 1981-11-12 Fluid coupling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18041981A JPS5884231A (en) 1981-11-12 1981-11-12 Fluid coupling

Publications (2)

Publication Number Publication Date
JPS5884231A true JPS5884231A (en) 1983-05-20
JPS626131B2 JPS626131B2 (en) 1987-02-09

Family

ID=16082924

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18041981A Granted JPS5884231A (en) 1981-11-12 1981-11-12 Fluid coupling

Country Status (1)

Country Link
JP (1) JPS5884231A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61180029A (en) * 1984-11-14 1986-08-12 フオイト タ−ボ ゲ−エムベ−ハ− ウント コンパニ− カ−ゲ− Fluid supply circuit and hydromechanic coupling using said circuit

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53141869A (en) * 1977-05-16 1978-12-11 Hitachi Ltd Variable speed torque converter
JPS55104125U (en) * 1979-01-17 1980-07-21
JPS5647699A (en) * 1979-09-27 1981-04-30 Takasago Tekko Kk Controller in speed control operation for centrifugal pump or centrifugal compressor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53141869A (en) * 1977-05-16 1978-12-11 Hitachi Ltd Variable speed torque converter
JPS55104125U (en) * 1979-01-17 1980-07-21
JPS5647699A (en) * 1979-09-27 1981-04-30 Takasago Tekko Kk Controller in speed control operation for centrifugal pump or centrifugal compressor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61180029A (en) * 1984-11-14 1986-08-12 フオイト タ−ボ ゲ−エムベ−ハ− ウント コンパニ− カ−ゲ− Fluid supply circuit and hydromechanic coupling using said circuit

Also Published As

Publication number Publication date
JPS626131B2 (en) 1987-02-09

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