EP0128787A1 - Einzylinder- oder Mehrzylinderradialpumpe - Google Patents

Einzylinder- oder Mehrzylinderradialpumpe Download PDF

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Publication number
EP0128787A1
EP0128787A1 EP84400928A EP84400928A EP0128787A1 EP 0128787 A1 EP0128787 A1 EP 0128787A1 EP 84400928 A EP84400928 A EP 84400928A EP 84400928 A EP84400928 A EP 84400928A EP 0128787 A1 EP0128787 A1 EP 0128787A1
Authority
EP
European Patent Office
Prior art keywords
bore
valve
piston
pump
seat
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
EP84400928A
Other languages
English (en)
French (fr)
Other versions
EP0128787B1 (de
Inventor
Jean Claude Maillochaud
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.)
Automobiles Peugeot SA
Automobiles Citroen SA
Original Assignee
Automobiles Peugeot SA
Automobiles Citroen SA
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 Automobiles Peugeot SA, Automobiles Citroen SA filed Critical Automobiles Peugeot SA
Publication of EP0128787A1 publication Critical patent/EP0128787A1/de
Application granted granted Critical
Publication of EP0128787B1 publication Critical patent/EP0128787B1/de
Expired 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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/102—Disc valves
    • F04B53/1035—Disc valves with means for limiting the opening height
    • 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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/102—Disc valves
    • F04B53/1032—Spring-actuated disc valves

Definitions

  • the present invention relates to a radial pump comprising a body in which is rotatably mounted a shaft carrying at least one eccentric or a control cam, at least one piston mounted to slide relative to the body and subjected to the action of elastic means tending to apply it on the eccentric, and a delivery device comprising a valve seat, a valve biased towards its seat by elastic means, a valve cage and an outlet connector plug.
  • It relates to a pump of this kind in which it is easy to replace defective parts and which, when it is multicylindrical, can easily be adapted to the needs of use, which makes it possible to manufacture it in large series, at a reduced cost price.
  • the pump according to the invention is characterized in that the piston is slidably mounted in a bore machined directly in the pump body, and in that this bore is extended by a second bore of larger diameter in which the device is arranged. discharge, the latter being held in position against the elastic means by the plug-connector which is tightly fixed in this second bore.
  • the pump body has a series of holes in each of which can be mounted a piston, elastic return means and a delivery device, and each of the delivery devices communicates, downstream of the valve. , with a conduit opening into a chamber common to all of the delivery devices.
  • each of the delivery devices communicates, downstream of the valve. , with a conduit opening into a chamber common to all of the delivery devices.
  • the different cylinder-piston assemblies work in parallel and discharge the liquid to the remaining fittings. It is also possible, if desired, to remove bores provided with a simple plug, the piston, its return means and the corresponding delivery device.
  • the pump according to the invention comprises a body 1 in which is rotatably mounted a shaft 2 carrying an eccentric 3. On this are mounted a ring 4 and a ring wear 5 maintained by, two washers E The shaft 2 rests in two plain bearings 7 and 8 mounted one directly in the body 1, the other in a ring 9 forming a spacer.
  • the bore 12 is extended by a bore 16 of greater diameter to which it is connected by a shoulder 17 and which forms a housing for the delivery device of the pump.
  • This delivery device comprises a valve seat 18, made of sintered steel, which bears on the shoulder 17 and serves as a stop for the spring 14.
  • This seat has a diameter smaller than that of the bore 16 so that an annular chamber 19 is formed around the seat. It has a central bore 20 which can be closed off by a valve 21 and lateral grooves 22 connecting the discharge of the pump to the annular chamber 19.
  • the valve 21 is movable inside a chamber 23 formed in a valve cage 24 made of sintered steel.
  • the latter has a central bore 25 which extends the chamber 23 and could be blind, but is open in the embodiment shown; this bore contains a spring 26 tending to apply the valve 21 to its seat 18 and has a smaller diameter than the chamber 23 to which it is connected by a shoulder 32.
  • the valve cage 24 has lower grooves 27, lateral 28 and superior 29.
  • valve seat 18 and the valve cage 24 are held in the bore 16 by a connector plug 30 which is screwed into the body 1 and on which the spring 26 is supported.
  • This plug has an outlet hole 31 and is extended at its part facing the delivery device by a blind ring 30a whose internal diameter is adjusted to keep the seat 18 and its cage 24 in place while its external diameter is adjusted to tightly crush an O-ring 33 which seals the discharge.
  • imprints can be printed on the ring 30a, so that the plug 30, the valve cage 24, the valve seat 18, the valve 21 and the spring 26 constitute a modular assembly.
  • the liquid in the chamber 10 passes inside the piston 13 through its holes 15, when this piston is in the low position.
  • the piston is then pushed back by the eccentric 3, the liquid is trapped inside the piston and driven back by the latter. It pushes back the valve 21, which is applied to the shoulder 30a by closing off the bore 25, and flows towards the outlet bore 31 through the grooves 27, 28 and 29.
  • Figure 4 shows another embodiment in which the pump is multi-cylinder.
  • the body 1 comprises several radial bores 12 in each of which is slidably mounted a piston 13 and to each of which is associated a delivery device maintained by a plug-connector 30 with its blind ring 30a.
  • the body has conduits 34 which put the chambers 19 in communication with the same annular chamber 35 coaxial with the shaft 2.
  • the various outlets of the pump are also connected to one another.
EP84400928A 1983-06-09 1984-05-07 Einzylinder- oder Mehrzylinderradialpumpe Expired EP0128787B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8309775A FR2547362B1 (fr) 1983-06-09 1983-06-09 Pompe radiale monocylindrique ou multicylindrique
FR8309775 1983-06-09

Publications (2)

Publication Number Publication Date
EP0128787A1 true EP0128787A1 (de) 1984-12-19
EP0128787B1 EP0128787B1 (de) 1987-10-07

Family

ID=9289738

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84400928A Expired EP0128787B1 (de) 1983-06-09 1984-05-07 Einzylinder- oder Mehrzylinderradialpumpe

Country Status (3)

Country Link
EP (1) EP0128787B1 (de)
DE (1) DE3466722D1 (de)
FR (1) FR2547362B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4305791A1 (de) * 1993-02-25 1994-09-01 Rexroth Mannesmann Gmbh Radialkolbenpumpe, insbesondere Kraftstoffpumpe für Verbrennungsmotoren
DE102009003052B4 (de) * 2009-05-13 2018-05-03 Robert Bosch Gmbh Hochdruckpumpe, insbesondere Radialkolbenpumpe oder Reihenkolbenpumpe, mit einem Antriebs-Nocken dessen Seitenfläche mit einer Lagerscheibe verbunden ist

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2004419A1 (de) * 1968-03-21 1969-11-21 Nsu Motorenwerke Ag
FR2006641A1 (de) * 1968-04-22 1970-01-02 Bendix Corp
FR2348378A1 (fr) * 1976-04-14 1977-11-10 Fichtel & Sachs Ag Pompe a pistons radiaux
FR2443631A1 (fr) * 1978-12-07 1980-07-04 Zahnradfabrik Friedrichshafen Soupape, en particulier soupape de compression pour pompe a piston

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1402284A (fr) * 1964-07-08 1965-06-11 Robert Bopsch G M B H Pompe équipée d'un dispositif de réglage de pression

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2004419A1 (de) * 1968-03-21 1969-11-21 Nsu Motorenwerke Ag
FR2006641A1 (de) * 1968-04-22 1970-01-02 Bendix Corp
FR2348378A1 (fr) * 1976-04-14 1977-11-10 Fichtel & Sachs Ag Pompe a pistons radiaux
FR2443631A1 (fr) * 1978-12-07 1980-07-04 Zahnradfabrik Friedrichshafen Soupape, en particulier soupape de compression pour pompe a piston

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4305791A1 (de) * 1993-02-25 1994-09-01 Rexroth Mannesmann Gmbh Radialkolbenpumpe, insbesondere Kraftstoffpumpe für Verbrennungsmotoren
DE4305791C2 (de) * 1993-02-25 2001-12-13 Hydraulik Ring Gmbh Radialkolbenpumpe, insbesondere Kraftstoffpumpe für Verbrennungsmotoren
DE102009003052B4 (de) * 2009-05-13 2018-05-03 Robert Bosch Gmbh Hochdruckpumpe, insbesondere Radialkolbenpumpe oder Reihenkolbenpumpe, mit einem Antriebs-Nocken dessen Seitenfläche mit einer Lagerscheibe verbunden ist

Also Published As

Publication number Publication date
FR2547362B1 (fr) 1985-07-26
EP0128787B1 (de) 1987-10-07
FR2547362A1 (fr) 1984-12-14
DE3466722D1 (de) 1987-11-12

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