EP1651866A1 - Mecanisme de transmission excentrique destine a des pompes d'action volumetrique ou moteurs - Google Patents

Mecanisme de transmission excentrique destine a des pompes d'action volumetrique ou moteurs

Info

Publication number
EP1651866A1
EP1651866A1 EP04740680A EP04740680A EP1651866A1 EP 1651866 A1 EP1651866 A1 EP 1651866A1 EP 04740680 A EP04740680 A EP 04740680A EP 04740680 A EP04740680 A EP 04740680A EP 1651866 A1 EP1651866 A1 EP 1651866A1
Authority
EP
European Patent Office
Prior art keywords
bearing
lifting member
channel
stroke
pressure
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
EP04740680A
Other languages
German (de)
English (en)
Other versions
EP1651866B1 (fr
Inventor
Bernhard-Rudolf Frey
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.)
Frey Bernhard
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
Priority to PL04740680T priority Critical patent/PL1651866T3/pl
Publication of EP1651866A1 publication Critical patent/EP1651866A1/fr
Application granted granted Critical
Publication of EP1651866B1 publication Critical patent/EP1651866B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
    • F04B9/04—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms
    • F04B9/045—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms the means being eccentrics
    • 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
    • F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B1/0404—Details or component parts
    • F04B1/0413—Cams
    • 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
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/04—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B27/0404—Details, component parts specially adapted for such pumps
    • F04B27/0414—Cams

Definitions

  • the invention relates to an eccentric drive for volumetric pumps or motors having the features of the preamble of claim 1. Such engines are known in the art.
  • the non-rotatably connected to the shaft of the crank gear lifting member with its with respect to the axis of this shaft eccentric stroke bearing can e.g. be designed as a crank pin of a conventional crankshaft, the coupling member as a connecting rod and the pressure member as a piston which is pivotally connected to the connecting rod by a piston pin.
  • the crank pin / connecting rod bearing and the Kolbolzenlager together again form a bearing with a translational, directed transversely to the degree of freedom, ie a transverse bearing.
  • a channel or bore system comes into consideration, which extends - starting from a pressure source - through the crankshaft and the connecting rod to the piston pin.
  • This lubricating fluid supply also passes through the crankpin / conrod bearing, i. by the stroke storage.
  • the bearing encompassing, groove-shaped recesses are provided in the bearing surfaces.
  • the object of the invention is therefore to provide an eccentric, which is characterized in terms of storage by effective and safe lubrication and lubricating pressure maintenance.
  • the solution of this problem is determined by the features of claim 1. In the combination context of these solution features, it is important, inter alia, that the flow connection between the transverse bearing and the channel system of the lubricating fluid supply in the high-pressure phase respectively closed by the uninterrupted bearing surfaces of the rod bearing and thus an undesirable Return flow of the lubricating fluid is prevented.
  • the cavity arrangement is arranged in a bearing surface of the lifting member, which extends over at least part of the low-pressure phase of the Exzentertriebmaschines corresponding peripheral portion of the lifting member and at least partially has a distance extending from the edges of this bearing surface boundary.
  • the cavity arrangement has at least one cavity in the form of a groove which extends at most over a semicircular circumferential section of the lifting member is used for the same purpose of optimization.
  • the cavity assembly comprises a plurality of circumferentially and / or axially of the lifting member offset from each other arranged cavities, which are each in communication with the lubricating fluid system.
  • This allows comparatively large cross sections for the lubricating fluid flow with nevertheless reliable sealing against undesired backflow.
  • the cavity arrangement is limited in a front or rear circumferential angular distance from the front and / or rear end of the low pressure phase corresponding peripheral portion of the lifting member. This allows in certain applications expedient Phasenerschiebitch the beginning or the end of the lubricating fluid supply to the transverse storage.
  • phase shifts and / or changes in the pressure gradient over time due to the compressibility of the working medium can be taken into account.
  • positive as well as negative angular distances with respect to the geometrical dead center or reversal points of the eccentric engine come into consideration.
  • a 5-cylinder pump driven by a shaft (W) cylinder piston units (ZI) to (Z5), concentric with the axis (XX) of the shaft W and over its circumference are arranged evenly distributed.
  • the central housing (GZ) is still an eccentric engine to be displayed in detail.
  • the drive torque is initiated by a motor, not shown, via a stub shaft (WS).
  • the eccentric drive shown in Figures 3 and 4 comprises a with the shaft (W) rotatably connected lifting member (HG) having a relative to this axis (XX) of the shaft eccentric stroke bearing (HL).
  • the Hub ⁇ agerung (HL) connects the lifting member (HG) with a non-participating in the rotary motion coupling member (KG), which in turn is connected by a transverse bearing (QL) with a pressure member (DG) for the oscillating conveyor drive a piston-cylinder unit.
  • the lifting member is a simple eccentric disc which is non-rotatably mounted on the shaft (W) or formed integrally therewith.
  • the lifting member forms at its outer periphery a bearing surface (Ll), which sits in a corresponding cylindrical bearing surface (L2) of the coupling member and thus forms a stroke bearing (HL). Accordingly, despite the multi-cylinder arrangement, the construction does not have a pronounced crankshaft.
  • the pressure member is formed in the example as in a housing (GH) radially to the shaft slidably mounted bush in which a standing under the working pressure piston (KO) sits.
  • the piston itself form with its lower end face the said bearing surface of the transverse bearing.
  • a pressure feed source (DQ) for lubricating fluid is provided, which is connected on the output side by a channel system with the transverse bearing (QL).
  • the channel system comprises a first channel (K1) extending through the lifting member (HG) into the stroke bearing (HL) and at least one of this stroke bearing through the coupling member (KG) Transverse storage (QL) extending second channel (K2).
  • a cavity arrangement for the forwarding of the lubricating fluid to at least one second channel (K2) is provided within the bearing surface (L1) connected to the lifting member (HG), and this cavity arrangement has within the bearing surface (L1) and in Circumferential direction of the lifting member (HG) at least approximately an arrangement and / or extent that allows a lubricating fluid flow between the first and second channel respectively only within a low pressure phase of the lubricating fluid in the stroke bearing (HL) or the transverse bearing (QL).
  • This construction or arrangement thus acts in the sense of a push valve control, which prevents undesired backflow of the lubricating fluid in the high pressure phases of the transverse bearing, but ensures sufficient filling of the transverse bearing gap with lubricating fluid in the low pressure phases.
  • the eccentric has a cavity arrangement in a bearing surface (Ll) of the lifting member (HG).
  • This cavity arrangement extends over at least part of the low-pressure phase of the eccentric engine corresponding peripheral portion (UN) of the lifting member (HG) and has at least in sections a distance from the edges of this bearing surface (Ll) extending boundary.
  • the construction is specially designed such that the cavity arrangement has at least one cavity in the form of a groove (HKN) which extends at most over a semicircular peripheral portion of the lifting member.
  • the cavity assembly comprises a plurality of in the circumferential and / or axial direction of the lifting member (HG) offset from each other arranged cavities, which are each in communication with the lubricating fluid system.
  • This allows comparatively large cross sections for the lubricating fluid flow with nevertheless reliable sealing against undesired backflow.
  • the cavity assembly may be further limited in front and rear circumferential angular distance (av or ah) from the direction of rotation front and / or rear end of the low-pressure phase corresponding peripheral portion (UN) of the lifting member (HG) are limited. This allows a phase shift of the beginning or the end of the lubricating fluid supply to the transverse bearing.
  • the amount of such a phase shift is generally suitably limited to a value of about 10 ° - positive or negative.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • General Details Of Gearings (AREA)
  • Sliding-Contact Bearings (AREA)
  • Rotary Pumps (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

L'invention concerne un mécanisme de transmission excentrique destiné à des pompes d'action volumétrique ou moteurs et ayant les caractéristiques suivantes: a) au moins un organe de levage (HG), relié bloqué en rotation à l'arbre (W) du mécanisme à manivelle, présente au moins un palier (HL) excentrique par rapport à l'axe (XX) de cet arbre; b) le palier (HL) relie l'organe de levage (HG) à un organe de couplage (KG) qui ne participe pas au mouvement de rotation et qui, à son tour, est relié à au moins un organe de pression (DG) par un palier transversal (QL) pour la commande de mouvement oscillant d'au moins une unité cylindre-piston; c) au moins une source d'alimentation en pression (DQ) destinée à un fluide de graissage qui, côté sortie, est relié au palier transversal (QL) par un système canal; d) à partir d'un canal de raccordement (KA) relié à la source d'alimentation en pression (DQ), le système canal comprend au moins un premier canal s'étendant par l'organe de levage (HG) jusque dans le palier (HL) et au moins un deuxième canal (K2) s'étendant du palier de levage au palier transversal (QL) en passant par l'organe de couplage (KG).
EP04740680.6A 2003-07-07 2004-07-06 Mecanisme de transmission excentrique destine a des pompes d'action volumetrique ou moteurs Expired - Lifetime EP1651866B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL04740680T PL1651866T3 (pl) 2003-07-07 2004-07-06 Mimośrodowy mechanizm napędowy dla silników lub pomp o działaniu wolumetrycznym

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10330757A DE10330757A1 (de) 2003-07-07 2003-07-07 Exzentertriebwerk für volumetrisch wirkende Pumpen oder Motoren
PCT/EP2004/007352 WO2005003558A1 (fr) 2003-07-07 2004-07-06 Mecanisme de transmission excentrique destine a des pompes d'action volumetrique ou moteurs

Publications (2)

Publication Number Publication Date
EP1651866A1 true EP1651866A1 (fr) 2006-05-03
EP1651866B1 EP1651866B1 (fr) 2014-03-05

Family

ID=33559962

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04740680.6A Expired - Lifetime EP1651866B1 (fr) 2003-07-07 2004-07-06 Mecanisme de transmission excentrique destine a des pompes d'action volumetrique ou moteurs

Country Status (11)

Country Link
US (1) US7441492B2 (fr)
EP (1) EP1651866B1 (fr)
JP (1) JP2007526958A (fr)
CN (1) CN1846058B (fr)
CA (1) CA2540721C (fr)
DE (1) DE10330757A1 (fr)
ES (1) ES2460954T3 (fr)
NO (1) NO338172B1 (fr)
PL (1) PL1651866T3 (fr)
RU (1) RU2354847C2 (fr)
WO (1) WO2005003558A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7108491B2 (en) * 2003-02-11 2006-09-19 Ganser-Hydromag Ag High pressure pump
DE102008042380A1 (de) 2008-09-26 2010-04-01 Robert Bosch Gmbh Exzentertriebwerk
DE102008042378A1 (de) 2008-09-26 2010-04-01 Robert Bosch Gmbh Exzentertriebwerk
US8926298B2 (en) * 2012-01-04 2015-01-06 Husco International, Inc. Hydraulic piston pump with a variable displacement throttle mechanism
CN103047100A (zh) * 2013-01-10 2013-04-17 无锡开普机械有限公司 具有凸轮轴轴套的转子泵
CN103967743A (zh) * 2013-01-29 2014-08-06 王彦彬 磁力式同平面多缸多级组合压缩机
CN103967745A (zh) * 2013-01-30 2014-08-06 王彦彬 同平面多缸多级凸轮组合压缩机

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB740784A (en) 1953-08-17 1955-11-16 Lucas Industries Ltd Reciprocatory pumps
GB884556A (en) 1958-06-18 1961-12-13 Hobourn Eaton Mfg Co Ltd Improvements in reciprocating liquid pumps of positive displacement type
US3093301A (en) * 1960-07-05 1963-06-11 Mitchell Co John E Lubricating system for compressor
DE1653632A1 (de) * 1967-03-25 1971-09-16 Teves Gmbh Alfred Radialkolbenpumpe
US3456874A (en) * 1967-08-01 1969-07-22 Eaton Yale & Towne Cam driven compressor
US4132510A (en) * 1976-06-09 1979-01-02 Sampei Komiya Compressor
JPS543604U (fr) * 1977-06-13 1979-01-11
DE3039197C2 (de) 1980-10-17 1986-07-17 Mannesmann Rexroth GmbH, 8770 Lohr Hydrostatische Radialkolbenpumpe
US4567815A (en) * 1984-12-04 1986-02-04 Vilter Manufacturing Corporation Connecting rod and bearing assembly therefor
DE4126640B4 (de) * 1991-08-12 2005-06-16 Robert Bosch Gmbh Pumpenanordnung mit einer Vorförderpumpe und einer Radialkolbenpumpe
GB9117975D0 (en) * 1991-08-20 1991-10-09 Collins Motor Corp Ltd Interconnecting rotary and reciprocating motion
JP2783381B2 (ja) * 1993-11-05 1998-08-06 松下冷機株式会社 密閉型圧縮機
KR0153343B1 (ko) 1995-10-13 1999-03-20 김광호 왕복동형 압축기
JPH1089255A (ja) * 1996-09-10 1998-04-07 Hitachi Ltd 密閉形電動圧縮機
DE19906626A1 (de) * 1998-10-06 2000-04-13 Mannesmann Rexroth Ag Pumpenanordnung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005003558A1 *

Also Published As

Publication number Publication date
PL1651866T3 (pl) 2014-08-29
CN1846058B (zh) 2010-04-21
NO20051157L (no) 2005-04-15
CN1846058A (zh) 2006-10-11
NO338172B1 (no) 2016-08-01
DE10330757A1 (de) 2005-02-03
EP1651866B1 (fr) 2014-03-05
JP2007526958A (ja) 2007-09-20
CA2540721A1 (fr) 2005-01-13
CA2540721C (fr) 2011-11-22
ES2460954T3 (es) 2014-05-16
RU2006103487A (ru) 2006-06-10
RU2354847C2 (ru) 2009-05-10
WO2005003558A1 (fr) 2005-01-13
US7441492B2 (en) 2008-10-28
US20060245940A1 (en) 2006-11-02

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