SU498917A3 - Viscosity pump - Google Patents
Viscosity pumpInfo
- Publication number
- SU498917A3 SU498917A3 SU1859620A SU1859620A SU498917A3 SU 498917 A3 SU498917 A3 SU 498917A3 SU 1859620 A SU1859620 A SU 1859620A SU 1859620 A SU1859620 A SU 1859620A SU 498917 A3 SU498917 A3 SU 498917A3
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- working
- pump
- cylinder
- pipe
- cylinders
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B7/00—Piston machines or pumps characterised by having positively-driven valving
- F04B7/0019—Piston machines or pumps characterised by having positively-driven valving a common distribution member forming a single discharge distributor for a plurality of pumping chambers
- F04B7/0034—Piston machines or pumps characterised by having positively-driven valving a common distribution member forming a single discharge distributor for a plurality of pumping chambers and having an orbital movement, e.g. elbow-pipe type members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04B15/02—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous
- F04B15/023—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous supply of fluid to the pump by gravity through a hopper, e.g. without intake valve
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S417/00—Pumps
- Y10S417/90—Slurry pumps, e.g. concrete
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Description
Изобретение относитс к насосам дл в зких жидкостей и, в частности к насосам с двум работающими в противофазе цилиндрами и общей загрузочной камерой, в которой закреплена поворотно относительно оси неподвижно-, го нагнетательного трубопровода распредедц-. тельна труба, один торец которой посто нно сообщен с нагнетательным трубопроводом, :а другой попеременно сообщаетс с каждым из рабочих цилиндров.The invention relates to pumps for viscous liquids and, in particular, to pumps with two out-of-phase cylinders and a common loading chamber, in which they are fixed pivotally relative to the axis of the stationary discharge pipeline. There is a flexible pipe, one end of which is permanently connected to the discharge pipe, and the other communicates alternately with each of the working cylinders.
Известные насосы этого типа значительны по габаритам.Known pumps of this type are significant in size.
Цель предлагаемого изобретени - уменьшение габаритов насоса и повышени объемного КПД.The purpose of the present invention is to reduce the size of the pump and increase the volumetric efficiency.
Эта цель достигаетс тем, что распределительна труба выполнена С-образной формы и снабжена устройством дл ее поджима к торцу соответствующего рабочего цилиндра, совершающего такт нагнетани . Устройство дл поджима выполнено в виде укрепленного на распределительной трубе ползуна, скольз щего по установленному параллельно торцам рабочих цилиндров прижиму, поджимаемому к ползуну посредством гидроцилиндра, св занного с прижимом посредством т г. Гидроцилиндр может быть установлен со стороны загрузочной камеры или со стороны рабочих цилиндров .This goal is achieved by the fact that the distribution pipe is C-shaped and is equipped with a device for pressing it against the end face of the corresponding working cylinder that performs a pumping stroke. The pressing device is designed as a slider mounted on the distribution pipe, sliding along a clamp installed parallel to the ends of the working cylinders, pressed against the slider by means of a hydraulic cylinder connected to the clamp by means of tons. The hydraulic cylinder can be installed on the side of the loading chamber or on the side of working cylinders.
На фиг. 1 изображен описываемый насос, разрез по распределительной трубе и поджимному устройству, расположенному со стороны загрузочной камеры; на фиг. 2 - разрез поFIG. 1 depicts the described pump, a section along the distribution pipe and the pressure device located on the side of the loading chamber; in fig. 2 - section along
А-А на фиг. 1; на фиг. 3 - насос, разрез по распределительной трубе и поджимному устР .оЙству, расположенному со стороны рабочихA-A in FIG. one; in fig. 3 - a pump, a section through a distribution pipe and a pressure device located on the workers side
1 линдров; на фиг. 4 - разрез по Б-Б на1 lindra; in fig. 4 - section along BB on
фиг. 3; на фиг. 5 - насос, продольный разрезFIG. 3; in fig. 5 - pump, longitudinal section
по загрузочной камере.by loading chamber.
Два рабочих цилиндра 1 установлены в нижней части вертикальной стенки 2 загрузочной камеры 3. В верхней части стенки 2 установлен нагнетательный трубопровод 4 с коромыслом 5.Two working cylinder 1 is installed in the lower part of the vertical wall 2 of the loading chamber 3. In the upper part of the wall 2 is installed the discharge pipeline 4 with a rocker arm 5.
На нагнетательном трубопроводе 4 с возможностью поворота вокруг оси 6 установлена распределительна труба 7 С-образной формы. Один торец трубы 7 посто нно сообщен с иагнетательным трубопроводом 4, а другой попеременно сообщаетс с каждым из двух рабочих цилиндров 1. Поворот трубы 7 относительно оси 6 достигаетс посредством гидроцилиндров 8, шарнирно св занных со стенкойA distribution pipe 7 is C-shaped in the discharge pipe 4 with the possibility of rotation around the axis 6. One end of the pipe 7 is permanently connected to the pressure pipe 4, and the other is in turn connected with each of the two working cylinders 1. Rotation of the pipe 7 relative to axis 6 is achieved by means of hydraulic cylinders 8 pivotally connected to the wall
2 и коромыслом 5.2 and the beam 5.
На трубе 7 закреплен ползун 9, скольз щий по установленному параллельно торцам рабочих цилиндров I прижиму 10. Поджим прижима 10, а следовательно, и трубы 7 к торцамOn the pipe 7, a slider 9 is fixed, sliding along the clamp 10 installed parallel to the ends of the working cylinders. Clamping clamp 10 and, consequently, pipe 7 to the ends
рабочих цилиндров 1 осуществл етс посредством гидроцил,индров и и 12 - в зависимости от варианта исполнени поджимного устройства.working cylinders 1 are realized by means of hydrocyl, indra, and 12, depending on the version of the gland.
Гидроцилиндры 11 расположены со стороны загрузочной камеры 3, а гндроцилиндры 12 - со стороны рабочих цилиндров. Гидроцилиндры 11 св заны с прижимом 10 посредством т г 13. При исполнении поджимного устройства с гидроцилиндром 12 последний св зываетс с прижимом 10 посредством т г 14, закрепленных на траверсе 15, котора установлена на гидроцилиндрах 12, например, на штоках 16.The hydraulic cylinders 11 are located on the side of the loading chamber 3, and the hydraulic cylinders 12 are located on the side of the working cylinders. The hydraulic cylinders 11 are associated with the clamp 10 by means of the rigs 13. When the clamping device is operated with the hydraulic cylinder 12, the latter is connected to the clamp 10 by the drivers of the rigs 14 mounted on the crosspiece 15, which is mounted on the hydraulic cylinders 12, for example, on the rods 16.
Загрузочна камера 3 снабжена вращающимс шнеком 17, обеспечивающим подачу в рабочий цилиндр 1 рабочего тела и его перемешивание при такте всасывани . Торцы рабочих цилиндров I при взаимодействии с трубой 7 интенсивно изнашиваютс . Поэтому между торцами цилиндров и распределительной трубой 7 устанавливают сменную нластину 18. Торец трубы 7, взаимодействующий с пластиной 18, может быть снабжен сменным кольцом 19. Благодар такому исполнению распределительной трубы и ноджимыого устройства габаритные размеры насоса значительно уменьшены.The loading chamber 3 is equipped with a rotating screw 17, which feeds the working cylinder 1 into the working fluid and mixes it during the suction stroke. The ends of the working cylinders I, when interacting with the pipe 7, wear out intensively. Therefore, between the ends of the cylinders and the distribution pipe 7, a replaceable nlastina 18 is installed. The pipe 7 end, which interacts with the plate 18, can be equipped with an interchangeable ring 19. Due to this design of the distribution pipe and the mounting device, the overall dimensions of the pump are significantly reduced.
Работает насос следующим образом.Works pump as follows.
Рабочее тело помещаетс в загрузочную камеру 3, где перемешиваетс шнеком 17.The working fluid is placed in the loading chamber 3 where it is agitated by the screw 17.
При выполнении первым рабочим цилиндром 1 такта всасывани его торец открыт и сообщаетс с загрз зочной камерой - рабоча камера заполн етс рабочим телом. По окончании такта всасывани в первом цилиндре труба 7 поворачиваетс посредством гидроцилиндров 8 вокруг оси 6 таким образом, что ее нижний торец совмещаетс с торцом этого рабочего цилиндра. Одновременно с началом рабочего хода осуществл етс подача рабочей жидкости в гидроцилиндр 11 или 12 - в зависимости от варианта исполнени . Гндроцнлиндр через т гу 13 взаимодействует с прижимом 10, который передает усилие, развиваемое гидроцилиндром, ползуну 9 (так осуществл етс поджи л торца трубы 7 к торцу рабочего цилиндра 1, обеспечиваетс уплотнение стыка), после чего происходит такт пагнетани : рабочее тело из цилиндра 1 по трубе 7 поступает в трубопровод 4.When the first working cylinder 1 of the suction stroke, its end face is open and communicates with the charging chamber - the working chamber is filled with the working fluid. At the end of the suction stroke in the first cylinder, the pipe 7 is rotated by means of hydraulic cylinders 8 around the axis 6 so that its lower end is aligned with the end of this working cylinder. Simultaneously with the beginning of the working stroke, the working fluid is supplied to the hydraulic cylinder 11 or 12, depending on the version. The cylinder through the thug 13 interacts with the clamp 10, which transmits the force developed by the hydraulic cylinder, the slider 9 (this is done by pressing the pipe end face 7 to the end of the working cylinder 1, the joint is sealed): the working body from cylinder 1 occurs pipe 7 enters the pipeline 4.
Рабочие цилиндры 1 работают в противофазе , т. е. при выполнении нервым цилиндром такта нагнетани во втором цилиндре происходит такт всасывани .The working cylinders 1 work in antiphase, i.e., when the injection cylinder performs a pump stroke in the second cylinder, a suction stroke occurs.
По окончании рабочего хода в первом цилиндре снимаетс давление рабочей жидкости в гидроцилиндре 11, и нижний торец трубы 7 посредством гпдроцилиндров 8 совмещаетс с торцом второго рабочего цилиндра. Вновь подаетс давление в гидроцилиндр 11. Стык между распределительной трубой и торцом второго рабочего цилиндра 1 уплотн етс , после чего происходит такт нагнетани во втором рабочем цилиндре.At the end of the working stroke in the first cylinder, the pressure of the working fluid in the hydraulic cylinder 11 is relieved, and the lower end of the pipe 7 is aligned with the end of the second working cylinder by means of hydraulic cylinders 8. The pressure is again supplied to the hydraulic cylinder 11. The junction between the distribution pipe and the end of the second working cylinder 1 is sealed, after which a pressure stroke takes place in the second working cylinder.
Далее циклы повтор ютс .Further cycles are repeated.
Предмет изобретени Subject invention
Claims (3)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE712162406A DE2162406C3 (en) | 1971-12-16 | 1971-12-16 | Slider device for a pump with two cylinders working in push-pull for pumping concrete or the like |
Publications (1)
Publication Number | Publication Date |
---|---|
SU498917A3 true SU498917A3 (en) | 1976-01-05 |
Family
ID=5828157
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU1859620A SU498917A3 (en) | 1971-12-16 | 1972-12-15 | Viscosity pump |
Country Status (16)
Country | Link |
---|---|
US (1) | US3832097A (en) |
JP (1) | JPS5142323B2 (en) |
AR (1) | AR198296A1 (en) |
AT (1) | AT319761B (en) |
AU (1) | AU463434B2 (en) |
BR (1) | BR7208872D0 (en) |
CA (1) | CA956507A (en) |
CH (1) | CH561850A5 (en) |
CS (1) | CS170458B2 (en) |
DE (1) | DE2162406C3 (en) |
ES (1) | ES409813A1 (en) |
FR (1) | FR2163744B1 (en) |
GB (1) | GB1380476A (en) |
IT (1) | IT974061B (en) |
SU (1) | SU498917A3 (en) |
ZA (1) | ZA728641B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4198193A (en) * | 1978-05-12 | 1980-04-15 | Walters James F | Automatic wear compensation apparatus for concrete pumping hopper apparatus |
Families Citing this family (40)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1397778A (en) * | 1972-08-09 | 1975-06-18 | Winget Ltd | Slurry pumps |
US3920357A (en) * | 1974-03-13 | 1975-11-18 | Case Co J I | Pumping apparatus |
US3982857A (en) * | 1973-10-17 | 1976-09-28 | Karl Schlecht | Support means for movable connector in concrete pump arrangement |
JPS5529264B2 (en) * | 1974-05-13 | 1980-08-02 | ||
JPS5526539Y2 (en) * | 1974-12-09 | 1980-06-25 | ||
JPS5185504A (en) * | 1975-01-23 | 1976-07-27 | Shogo Kato | KONKURIITOHONPU |
DE2547639C2 (en) * | 1975-10-24 | 1984-09-27 | Karl Dipl.-Ing. 7000 Stuttgart Schlecht | Concrete pump funnel |
JPS5294502A (en) * | 1976-02-02 | 1977-08-09 | Kyokuto Kaihatsu Kogyo Co Ltd | Change-over device for supply port of concrete pump |
DE2614895C3 (en) * | 1976-04-07 | 1987-01-22 | Karl Dipl.-Ing. 7000 Stuttgart Schlecht | Concrete pump pipe switch |
DE2632816C2 (en) * | 1976-07-21 | 1982-07-29 | Friedrich Wilh. Schwing Gmbh, 4690 Herne | Sealing device for a double cylinder pump, especially for pumping concrete |
JPS5352181U (en) * | 1976-10-06 | 1978-05-04 | ||
DE2725089C2 (en) * | 1977-06-03 | 1979-05-31 | Maschinenfabrik Walter Scheele Kg, 4750 Unna-Massen | Slide device for a two-cylinder concrete pump |
DE2933128C2 (en) * | 1979-08-16 | 1985-09-26 | Friedrich Wilh. Schwing Gmbh, 4690 Herne | Thick matter pump, especially for pumping concrete |
DE3045885C2 (en) * | 1980-12-05 | 1984-05-30 | Elba-Werk Maschinen-Gesellschaft Mbh & Co, 7505 Ettlingen | Pipe distributor for a reciprocating piston pump |
DE3118937C2 (en) * | 1981-05-13 | 1985-05-23 | Elba-Werk Maschinen-Gesellschaft Mbh & Co, 7505 Ettlingen | Pipe distributor for a reciprocating piston pump |
GB2090924B (en) * | 1980-12-05 | 1984-03-28 | Elba Werk Maschinen Gmbh & Co | Apparatus for conveying materials in particular concrete |
DE3122825C2 (en) * | 1981-06-09 | 1984-11-08 | Maschinenfabrik Walter Scheele GmbH & Co KG, 4750 Unna-Massen | Device for conveying pasty masses, in particular concrete |
JPS5844280A (en) * | 1981-09-08 | 1983-03-15 | Kenji Kawase | Slurry pump |
EP0085521B2 (en) * | 1982-01-22 | 1991-11-13 | Hydroseal Concrete Pumps Limited | Slurry pump |
US4502851A (en) * | 1982-11-12 | 1985-03-05 | Vaughn Calvin | Pivotal discharge apparatus |
DE3304985A1 (en) * | 1983-02-12 | 1984-08-23 | Rudolf Ing. Riker (grad.), 8940 Memmingen | PUMP UNIT FOR HEAVY-FLOWING SUBSTANCES, ABOUT CONCRETE |
DE3347288A1 (en) * | 1983-12-28 | 1985-07-18 | Karl Dipl.-Ing. 7000 Stuttgart Schlecht | Twin-cylinder pump, particularly for delivering viscous materials |
DE3419832A1 (en) * | 1984-05-26 | 1985-11-28 | Karl Dipl.-Ing. 7000 Stuttgart Schlecht | PIPE DIVER OF A THICKENING MATERIAL, PARTICULARLY CONCRETE CONVEYING DOUBLE PISTON PUMP |
FR2602709A1 (en) * | 1986-07-29 | 1988-02-19 | Kinderstuth Daniel | Automonous mobile bucket with pump for concrete or plaster |
AU634580B2 (en) | 1989-10-23 | 1993-02-25 | Magneco/Metrel, Inc. | Composition and method for manufacturing steel-containment equipment |
US5795508A (en) * | 1991-03-22 | 1998-08-18 | Magneco/Metrel, Inc. | Method of lining a blast furnace |
CN1071390A (en) * | 1991-10-04 | 1993-04-28 | 三菱重工业株式会社 | The gate-valve device of concrete pump |
DE4344632A1 (en) * | 1993-12-24 | 1995-06-29 | Putzmeister Maschf | Slide device for a two-cylinder slurry pump |
US5422323A (en) * | 1994-04-15 | 1995-06-06 | Magneco/Metrel, Inc. | Nonhazardous pumpable refractory insulating composition |
EP0694619A3 (en) | 1994-07-26 | 1996-02-28 | Magneco Metrel Inc | Method of lining a blast furnace |
DE19724504A1 (en) * | 1997-06-11 | 1998-12-17 | Schwing Gmbh F | Two-cylinder nitrogen pump |
CA2305648A1 (en) * | 1997-10-02 | 1999-04-15 | Martin Marietta Materials, Inc. | Method and apparatus for installation of refractory material into a metallurgical vessel |
US5916500A (en) * | 1997-11-20 | 1999-06-29 | Magneco/Metrel, Inc. | Method of lining a blast furnace |
DE19804863A1 (en) | 1998-02-09 | 1999-08-12 | Putzmeister Ag | Slide device for a two-cylinder slurry pump |
US20030127854A1 (en) * | 2002-01-08 | 2003-07-10 | Lehnhardt Gary D. | Method and apparatus for a line concrete pumping system |
US6758500B2 (en) | 2002-04-19 | 2004-07-06 | Construction Forms, Inc. | Flared ends conduit coupling |
DE10342338A1 (en) * | 2003-09-11 | 2005-05-25 | Putzmeister Ag | Slider device for a slurry pump and wear strip therefor |
DE102005008938B4 (en) * | 2005-02-26 | 2007-01-25 | Schwing, Friedrich, Dipl.-Ing. | Pumping device and method for the continuous delivery pulpy masses |
USD788883S1 (en) * | 2015-04-16 | 2017-06-06 | Robert A Drake | Pressure relief valve for use with concrete pumping system |
US10900302B2 (en) | 2018-07-27 | 2021-01-26 | Country Landscapes & Tree Service, LLC | Directional drilling systems, apparatuses, and methods |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US25568A (en) * | 1859-09-27 | Improvement in methods of distilling oils from coal | ||
DE940869C (en) * | 1951-04-08 | 1956-03-29 | Gerhard Dr-Ing Beyer | Piston pump for conveying viscous masses |
US2796032A (en) * | 1952-10-03 | 1957-06-18 | Torkret Gmbh | Piston pumps |
US3181469A (en) * | 1963-02-07 | 1965-05-04 | Hydro Con Corp | Concrete pumping apparatus |
DE1453705A1 (en) * | 1963-12-19 | 1969-09-18 | Wennberg Olav Carl Gustav | Piston pump for concrete or other masses of similar consistency |
FR1411359A (en) * | 1964-09-22 | 1965-09-17 | Controlled displacement pump for transferring semi-liquid materials | |
GB1098338A (en) * | 1966-04-20 | 1968-01-10 | Eugene Lee Sherrod | Reciprocating pump for semi-liquid materials |
FR1496396A (en) * | 1966-10-11 | 1967-09-29 | Automatic control device for concrete pump | |
US3465685A (en) * | 1968-02-21 | 1969-09-09 | Eugene L Sherrod | Self-clearing rotating conveyor |
US3663129A (en) * | 1970-09-18 | 1972-05-16 | Leon A Antosh | Concrete pump |
DE2104191C3 (en) * | 1971-01-29 | 1975-10-23 | Torkret Gmbh, 4300 Essen | Device for conveying pasty, setting masses |
-
1971
- 1971-12-16 DE DE712162406A patent/DE2162406C3/en not_active Expired
-
1972
- 1972-12-05 CH CH1769772A patent/CH561850A5/xx not_active IP Right Cessation
- 1972-12-06 GB GB5639072A patent/GB1380476A/en not_active Expired
- 1972-12-06 AU AU49685/72A patent/AU463434B2/en not_active Expired
- 1972-12-06 ZA ZA728641A patent/ZA728641B/en unknown
- 1972-12-07 US US00313128A patent/US3832097A/en not_active Expired - Lifetime
- 1972-12-07 CA CA158,333A patent/CA956507A/en not_active Expired
- 1972-12-07 JP JP47122096A patent/JPS5142323B2/ja not_active Expired
- 1972-12-12 ES ES409813A patent/ES409813A1/en not_active Expired
- 1972-12-12 AT AT1058872A patent/AT319761B/en not_active IP Right Cessation
- 1972-12-12 AR AR245607A patent/AR198296A1/en active
- 1972-12-13 IT IT54700/72A patent/IT974061B/en active
- 1972-12-14 CS CS8608A patent/CS170458B2/cs unknown
- 1972-12-15 BR BR008872/72A patent/BR7208872D0/en unknown
- 1972-12-15 SU SU1859620A patent/SU498917A3/en active
- 1972-12-18 FR FR7244978A patent/FR2163744B1/fr not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4198193A (en) * | 1978-05-12 | 1980-04-15 | Walters James F | Automatic wear compensation apparatus for concrete pumping hopper apparatus |
Also Published As
Publication number | Publication date |
---|---|
AU4968572A (en) | 1974-06-06 |
AU463434B2 (en) | 1975-07-08 |
BR7208872D0 (en) | 1973-12-11 |
ES409813A1 (en) | 1975-11-16 |
DE2162406A1 (en) | 1973-06-28 |
IT974061B (en) | 1974-06-20 |
DE2162406C3 (en) | 1979-03-01 |
ZA728641B (en) | 1973-08-29 |
DE2162406B2 (en) | 1974-06-20 |
AT319761B (en) | 1975-01-10 |
FR2163744B1 (en) | 1977-09-02 |
CH561850A5 (en) | 1975-05-15 |
AR198296A1 (en) | 1974-06-14 |
GB1380476A (en) | 1975-01-15 |
CA956507A (en) | 1974-10-22 |
FR2163744A1 (en) | 1973-07-27 |
JPS4866205A (en) | 1973-09-11 |
US3832097A (en) | 1974-08-27 |
JPS5142323B2 (en) | 1976-11-15 |
CS170458B2 (en) | 1976-08-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
SU498917A3 (en) | Viscosity pump | |
US3663129A (en) | Concrete pump | |
US4023469A (en) | Piston and piston rod construction for pumps and method of flushing piston-type pumps | |
US3726614A (en) | Pump construction | |
GB1452561A (en) | Apparatus for pumping wet concrete | |
RU94045289A (en) | Hydraulically driven system of oil well pump | |
US2448104A (en) | Differential concrete pump | |
US2760436A (en) | Pump for fluid and semi-fluid material such as plaster and the like | |
GB1414997A (en) | Rotating cylinder block pump | |
GB1235582A (en) | A piston pump | |
GB1180513A (en) | Radial Piston Fluid Pressure Motor | |
US3777626A (en) | Pump construction | |
SU712041A3 (en) | Piston concrete pump | |
GB1360800A (en) | Reciprocating pumps | |
US3923428A (en) | Pumps | |
RU190164U1 (en) | PISTON PUMP | |
SU1040211A1 (en) | Concrete pump | |
SU1382992A1 (en) | Concrete pump | |
SU1016556A1 (en) | Concrete pump | |
SU1068615A1 (en) | Concrete pump | |
US2729165A (en) | Rotary pump | |
US2625887A (en) | Variable stroke multipiston pump | |
SU1679051A1 (en) | Plunger pump | |
GB1249335A (en) | Pump assembly for pumping concrete and like materials | |
SU958691A1 (en) | Concrete pump |