EP0051795A1 - Koaxial-Doppelpumpe - Google Patents

Koaxial-Doppelpumpe Download PDF

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Publication number
EP0051795A1
EP0051795A1 EP81109055A EP81109055A EP0051795A1 EP 0051795 A1 EP0051795 A1 EP 0051795A1 EP 81109055 A EP81109055 A EP 81109055A EP 81109055 A EP81109055 A EP 81109055A EP 0051795 A1 EP0051795 A1 EP 0051795A1
Authority
EP
European Patent Office
Prior art keywords
working cylinders
coaxial double
drum
double pump
pistons
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.)
Withdrawn
Application number
EP81109055A
Other languages
German (de)
English (en)
French (fr)
Inventor
Karl Schlecht
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0051795A1 publication Critical patent/EP0051795A1/de
Withdrawn legal-status Critical Current

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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
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/20—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
    • F04B1/22—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block having two or more sets of cylinders or pistons

Definitions

  • the invention relates to a coaxial double pump of the type described in the preamble of claim 1, as has become known, for example, from US Pat. No. 3,319,576.
  • a heavy design of such pumps can reduce the noise, but this makes the use of such pumps as mobile pumps and their use, for example, in vehicle-mounted concrete pumps impossible, in which pumps of light and small design with high speed, high performance and low lubrication sensitivity be required.
  • the invention is therefore based on the object of providing coaxial double pumps which, with a small and light design, have a high output and a low level of noise, and, because of their simple construction, enable easy replacement of the components subject to wear.
  • the opposing movement of the pistons in the working cylinders of the two drums compensates for the pressure surges acting on the fixed housing having the suction and the pressure channel, so that the housing does not vibrate like a membrane, and due to the angular displacement of the working cylinders in the two
  • the pressure surges exerted on the pressure channel are halved to a certain extent on the drums rotating around the common shaft. In this way, sound radiation, especially in the axial direction, is largely avoided. While vibrations occurring in single drives increase at higher speeds, the damping effect increases in the coaxial double pump according to the invention at higher speeds.
  • the cylinder drums 7 and 8 are mounted with teeth on the shaft 4 and have a plurality of working cylinders each with a piston 13.
  • the pistons 13 are connected via their ends which have a partial spherical shape to sliding shoes 14 which bear against the swivel plates 5 and 6.
  • the swivel plate 5 is supported on the front part of the housing 1 by way of the swivel bearing 15 designed as a vaulted roller conveyor.
  • the swivel plate 5 is pivoted by means of the servo adjusting piston 17 via the driver 18 in a known manner and thus brings about the lifting movement of the pistons 13 in the rotating mirror-image cylinder drums 7 and 8.
  • the two swivel plates 5 and 6 are mechanically or hydraulically connected to one another in a known manner coupled and designed to control the flow rate continuously swiveling.
  • the pistons 13 suck in the pressure fluid via the common suction channel 11 arranged in the more rigid housing part 3 and convey it into the common pressure channel 12. The direction of flow is indicated by the arrows 9 and 10.
  • the swivel disk 20 is mounted in the middle region of the housing 1, 2 in a swivel bearing 21 arranged in recesses in the housing and is swiveled by means of the shaft 22.
  • the suction channels 11a and 11b as well as the pressure channels 12a and 12b are arranged in the front housing parts 19a and 19b, in which the shaft 4 is mounted.
  • the suction and pressure channels are, as indicated in dashed lines, connected to a common suction line 9 or pressure line 10 forming part of a closed, prestressed circuit, or open into a suction and a pressure channel of the housing.
  • This embodiment has the advantage that the delivery rate of the pump can be changed as desired by the stepless adjustment of the inclined position of only one swivel disk.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Details Of Reciprocating Pumps (AREA)
EP81109055A 1980-11-06 1981-10-28 Koaxial-Doppelpumpe Withdrawn EP0051795A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3041832 1980-11-06
DE19803041832 DE3041832A1 (de) 1980-11-06 1980-11-06 Koaxial-doppelpumpe

Publications (1)

Publication Number Publication Date
EP0051795A1 true EP0051795A1 (de) 1982-05-19

Family

ID=6116074

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81109055A Withdrawn EP0051795A1 (de) 1980-11-06 1981-10-28 Koaxial-Doppelpumpe

Country Status (3)

Country Link
EP (1) EP0051795A1 (ja)
JP (2) JPS57108477A (ja)
DE (1) DE3041832A1 (ja)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4922804A (en) * 1987-07-23 1990-05-08 Renato Brevini Variable speed hydraulic unit
DE10021485A1 (de) * 2000-05-03 2001-11-15 Brueninghaus Hydromatik Gmbh Hydrostatische Maschine
FR2977644A1 (fr) * 2011-07-04 2013-01-11 Peugeot Citroen Automobiles Sa Moteur hydraulique a pistons axiaux a cylindree variable et faible encombrement
CN108869223A (zh) * 2018-08-06 2018-11-23 华中科技大学 一种双斜盘柱塞泵
WO2020182206A1 (zh) * 2019-03-13 2020-09-17 青岛科而泰控股有限公司 串联式轴向柱塞泵
DE102021200205A1 (de) 2021-01-12 2022-07-14 Robert Bosch Gesellschaft mit beschränkter Haftung Axialkolbenmaschine mit hoher Antriebdrehzahl

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE449391B (sv) * 1982-04-07 1987-04-27 Asea Atom Ab Kolvpumpanordning for pumpning av en blandning av grovkornigt material och vetska
DE4225380B4 (de) * 1992-07-31 2004-07-15 Linde Ag Hydrostatisches Aggregat mit einer Hauptpumpe und einer Nebenpumpe
US5540563A (en) * 1994-09-16 1996-07-30 Sauer Inc. Unitary housing for double hydraulic unit
DE19958829C1 (de) * 1999-11-30 2001-08-02 Mannesmann Ag Brennstoffzellensystem mit einer Vorrichtung zum Zuleiten von Brennstoff
JP4677614B2 (ja) * 2006-05-10 2011-04-27 独立行政法人 日本原子力研究開発機構 亜硫酸電解水素製造方法および装置
JP4756118B2 (ja) * 2007-02-21 2011-08-24 独立行政法人 日本原子力研究開発機構 亜硫酸電解セル
DE102019213675A1 (de) 2019-09-10 2021-03-11 Robert Bosch Gmbh Hydrostatische Kolbenmaschineneinheit

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1653374A1 (de) * 1967-01-02 1971-10-14 Louis Berholz Als Pumpe oder Motor betreibbare Druckfluessigkeits-Axialkolbenmaschine
DE1653558A1 (de) * 1967-04-19 1971-11-11 Kloeckner Werke Ag Hydrostatische Axialkolbenmaschine
DE2363553A1 (de) * 1972-12-28 1974-07-04 Tokyo Keiki Kk Pumpenanordnung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1653374A1 (de) * 1967-01-02 1971-10-14 Louis Berholz Als Pumpe oder Motor betreibbare Druckfluessigkeits-Axialkolbenmaschine
DE1653558A1 (de) * 1967-04-19 1971-11-11 Kloeckner Werke Ag Hydrostatische Axialkolbenmaschine
DE2363553A1 (de) * 1972-12-28 1974-07-04 Tokyo Keiki Kk Pumpenanordnung

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4922804A (en) * 1987-07-23 1990-05-08 Renato Brevini Variable speed hydraulic unit
DE10021485A1 (de) * 2000-05-03 2001-11-15 Brueninghaus Hydromatik Gmbh Hydrostatische Maschine
US6846165B2 (en) 2000-05-03 2005-01-25 Brueninghaus Hydromatik Gmbh Hydrostatic machine
DE10021485B4 (de) * 2000-05-03 2006-03-23 Brueninghaus Hydromatik Gmbh Hydrostatische Maschine
FR2977644A1 (fr) * 2011-07-04 2013-01-11 Peugeot Citroen Automobiles Sa Moteur hydraulique a pistons axiaux a cylindree variable et faible encombrement
CN108869223A (zh) * 2018-08-06 2018-11-23 华中科技大学 一种双斜盘柱塞泵
WO2020182206A1 (zh) * 2019-03-13 2020-09-17 青岛科而泰控股有限公司 串联式轴向柱塞泵
DE102021200205A1 (de) 2021-01-12 2022-07-14 Robert Bosch Gesellschaft mit beschränkter Haftung Axialkolbenmaschine mit hoher Antriebdrehzahl

Also Published As

Publication number Publication date
DE3041832A1 (de) 1982-05-13
JPS57108477A (en) 1982-07-06
JPS57114677A (en) 1982-07-16
JPH0149792B2 (ja) 1989-10-26

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19811028

AK Designated contracting states

Designated state(s): AT DE GB IT NL

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19821119

RBV Designated contracting states (corrected)

Designated state(s): AT DE GB IT NL