EP1078164A1 - Pompe a pistons axiaux - Google Patents

Pompe a pistons axiaux

Info

Publication number
EP1078164A1
EP1078164A1 EP99936253A EP99936253A EP1078164A1 EP 1078164 A1 EP1078164 A1 EP 1078164A1 EP 99936253 A EP99936253 A EP 99936253A EP 99936253 A EP99936253 A EP 99936253A EP 1078164 A1 EP1078164 A1 EP 1078164A1
Authority
EP
European Patent Office
Prior art keywords
control
piston
pressure
axial piston
piston pump
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Withdrawn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
EP99936253A
Other languages
German (de)
English (en)
Inventor
Wilhelm Gerker
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.)
Hawe Inline Hydraulik GmbH
Original Assignee
Hawe Inline Hydraulik GmbH
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 Hawe Inline Hydraulik GmbH filed Critical Hawe Inline Hydraulik GmbH
Publication of EP1078164A1 publication Critical patent/EP1078164A1/fr
Withdrawn legal-status Critical Current

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
    • 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
    • F04B1/2014—Details or component parts
    • F04B1/2042—Valves

Definitions

  • the solution according to the invention makes it possible to compensate for the tilting moment on the piston drum resulting from the internal laying of the kidney-shaped control openings by a simple measure, by creating pressure fields as an additional support, which are positioned on the outer support ring.
  • the invention allows, for example, the self-priming speed of axial reciprocating pumps to be increased by approximately 15% without complicating the structure of the pump.
  • Support ring 3 and boundary edge 8 there is an annular groove 13 which discharges the leak oil into the leak oil holes 4.
  • Support ring 3 and boundary edge 8 have a contact surface lying on the same level, which is covered by the sliding disc 15.
  • the sliding disc 15 which is located between the control disc 1 and the piston drum 12, the control openings 5 and 6 are also arranged in position and size as in the control disc 1 and in the piston drum 12 (see FIG. 4).
  • support pressure fields 9 are incorporated in the form of kidney-shaped elongated holes. These support pressure fields 9 are connected to the pressure kidney 6 by a bore 10 each, which are introduced into the control disk 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)

Abstract

L'invention a pour objet d'augmenter la vitesse de rotation d'auto-aspiration de pompes à pistons axiaux avec disque en nutation solidaire du carter, de simplifier la structure, d'égaliser de manière fiable le couple de basculement, de prolonger la durée de vie et simultanément de réduire les coûts de fabrication. Les ouvertures de commande (5; 6) du disque de commande (1), du disque coulissant (15) et du tambour à pistons (12) sont disposées, avec un certain décalage vers l'intérieur, sur un cercle primitif (K1) plus petit que le cercle primitif (K2) des pistons, les surfaces de passage (F) des ouvertures demeurant inchangées. Le tambour à pistons (12) et le disque de commande (1) sont respectivement munis, sur leur bord extérieur, d'une bague de support (3) se situant toutefois à proximité du cercle primitif (K2) des pistons (11). Au moins une zone de pression de support (9) associée ponctuellement à l'orifice de commande de pression (6) est disposée dans la bague de support (3), cette zone de pression de support (9) se trouvant en communication avec l'orifice de commande de pression (6) par l'intermédiaire d'un alésage de raccordement (10).
EP99936253A 1998-05-15 1999-05-11 Pompe a pistons axiaux Withdrawn EP1078164A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE1998123353 DE19823353A1 (de) 1998-05-15 1998-05-15 Axialkolbenpumpe
DE19823353 1998-05-15
PCT/DE1999/001467 WO1999060269A1 (fr) 1998-05-15 1999-05-11 Pompe a pistons axiaux

Publications (1)

Publication Number Publication Date
EP1078164A1 true EP1078164A1 (fr) 2001-02-28

Family

ID=7868880

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99936253A Withdrawn EP1078164A1 (fr) 1998-05-15 1999-05-11 Pompe a pistons axiaux

Country Status (3)

Country Link
EP (1) EP1078164A1 (fr)
DE (1) DE19823353A1 (fr)
WO (1) WO1999060269A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10343222A1 (de) * 2003-09-18 2005-04-14 Sauer-Danfoss (Neumünster) GmbH & Co OHG Axialkolbenmaschine der Schrägscheiben- oder Schrägachsen-Bauart

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE900530C (de) * 1951-06-30 1953-12-28 Heinrich Ebert Dr Ing Steuerspiegel fuer die Kolbentrommel hydraulischer Axialkolbenmaschinen mit ungerader Kolbenanzahl
DE976964C (de) * 1951-11-13 1964-09-17 Albert Schacht OEldrosseleinrichtung zwischen den Gleitflaechen, insbesondere zwischen den Steuerflaechen an Axialkolben-Fluessigkeitsgetrieben mit umlaufendem Kolben
CH379924A (de) * 1959-08-31 1964-07-15 U Dr Thoma Jean Axialkolbenmaschine mit durch Drucköl geschmiertem Axiallager
GB1068075A (en) * 1963-09-19 1967-05-10 Lely Nv C Van Der Improvements in or relating to hydraulic pumps
FR2053661A5 (fr) * 1969-07-11 1971-04-16 Peugeot & Renault
DE2000590A1 (de) * 1970-01-08 1971-07-15 Kloeckner Werke Ag Spiegelgesteuerte hydrostatische Axialkolbenmaschine
US4019425A (en) * 1975-02-07 1977-04-26 Caterpillar Tractor Co. Piston pump with floating port plate providing variable force balance for hydrostatic balance
US5538401A (en) * 1994-07-05 1996-07-23 Denison Hydraulics Inc. Axial piston pump

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9960269A1 *

Also Published As

Publication number Publication date
WO1999060269A1 (fr) 1999-11-25
DE19823353A1 (de) 1999-11-25

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