EP0886036B1 - Moteur à pistons à air comprimé - Google Patents

Moteur à pistons à air comprimé Download PDF

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Publication number
EP0886036B1
EP0886036B1 EP98109823A EP98109823A EP0886036B1 EP 0886036 B1 EP0886036 B1 EP 0886036B1 EP 98109823 A EP98109823 A EP 98109823A EP 98109823 A EP98109823 A EP 98109823A EP 0886036 B1 EP0886036 B1 EP 0886036B1
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EP
European Patent Office
Prior art keywords
piston
control
cylinder
compressed
air
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.)
Expired - Lifetime
Application number
EP98109823A
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German (de)
English (en)
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EP0886036A3 (fr
EP0886036A2 (fr
Inventor
Oswald Scherer
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.)
Wiwa Wilhelm Wagner GmbH and Co KG
Original Assignee
Wiwa Wilhelm Wagner GmbH and Co KG
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Publication date
Application filed by Wiwa Wilhelm Wagner GmbH and Co KG filed Critical Wiwa Wilhelm Wagner GmbH and Co KG
Publication of EP0886036A2 publication Critical patent/EP0886036A2/fr
Publication of EP0886036A3 publication Critical patent/EP0886036A3/fr
Application granted granted Critical
Publication of EP0886036B1 publication Critical patent/EP0886036B1/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B11/00—Reciprocating-piston machines or engines without rotary main shaft, e.g. of free-piston type
    • F01B11/001—Reciprocating-piston machines or engines without rotary main shaft, e.g. of free-piston type in which the movement in the two directions is obtained by one double acting piston motor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B17/00—Reciprocating-piston machines or engines characterised by use of uniflow principle
    • F01B17/02—Engines
    • 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
    • F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
    • F04B9/12—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air
    • F04B9/123—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having only one pumping chamber
    • F04B9/125—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having only one pumping chamber reciprocating movement of the pumping member being obtained by a double-acting elastic-fluid motor

Definitions

  • the invention relates to a compressed air piston engine, in particular for paint spraying devices, Dosing pumps, grease guns and the like, with one in one Piston cylinder by means of compressed air on its two piston surfaces a slide control alternately acted upon and thereby oscillating Movable working piston with a piston rod that is axially in one Cylinder head and / or a cylinder bottom is guided, in which for the Compressed air inflow or outflow into / out of the piston cylinder each have an inlet / outlet is provided, the slide control one in a control cylinder Movable control piston and control openings in the control cylinder are provided, each a supply / discharge or ventilation lines Connect the compressed air to the control cylinder and are influenced by the control piston and the slide control provided in / on the cylinder head or in / on the cylinder bottom and so is that the axes of the control piston and the working piston are approximately perpendicular stand on each other, with the cylinder head and the cylinder bottom each have a switching valve for the compressed air from the
  • Such a, usually single-acting, compressed-air piston engine already exists known and can also be designed double-acting without much effort, where an implement is connected to each end of the pneumatic piston engine is.
  • the piston cylinder with the cylinder head or Be formed in one piece, but it is more advantageous if both the cylinder head as well as the cylinder bottom of the piston cylinder made separately and the parts assembled afterwards, like that for example in the patent DE 33 42 388 C3, so that the required Machining of the parts can be kept low.
  • the slide control is either attached to the side of the piston cylinder and optionally carried out in one piece with it, or it is located as in the arrangement according to DE 33 42 388 C3 above the cylinder head or if necessary also below the cylinder bottom; in these Components, the slide control can be structurally integrated. Both orders are unfavorable.
  • the invention has for its object the above Disadvantages of the known compressed air piston motors described of the type specified at the beginning to eliminate and a slide control space-saving and suitable for different working strokes of the working piston to install.
  • each of the changeover valves provided with a differential slide is that of a first valve piston of larger and a second Valve piston of smaller piston area, which is at a fixed distance are attached to the valve piston rod.
  • the axis of the control piston of the axis of the working piston is spaced because then the piston rod be stored at both ends and / or both through the cylinder head as well as can be passed through the cylinder base without doing so to be hindered by the slide control.
  • a preferred embodiment of such a compressed air piston engine consists in that in the valve housing from a branch line air pressure the differential slide in a first end position moves in the valve piston rod partially into the piston cylinder protrudes.
  • the differential slide is in constant contact with the upcoming air pressure in a preferred first end position from which he solely under the action of the working piston on its valve piston rod a second end position is movable - against that on the differential piston acting force from air pressure.
  • a return spring be completely dispensed with, if only care is taken to ensure that the piston surfaces of the differential piston are continuously exposed to compressed air.
  • the switch valve is provided axially parallel to the working piston and in the cylinder head or bottom a circular cylindrical bushing for mounting the differential slide is provided, the implementation against preferably the piston cylinder by means of a elastic closure is blocked by the Valve piston rod is pierced and on which the first Valve piston can be applied under the effect of compressed air which is therefore somewhat cushioned there, so that noise and wear remain low.
  • the implementation advantageously has one threaded bush locked with a screw plug in which the second valve piston is guided which is a supply / discharge line leading into the changeover valve shuts off as long as the first valve piston is on the closure rests. This ensures that the differential slide is independent of that in the Incoming / outgoing air pressure in the first end position as long as it is not from the piston is moved out of this.
  • Control cylinder closed on the front side by locking pieces is so that it is in the cylinder head / bottom continuous bore can be formed; the locking pieces are best threaded plugs. If on that Control piston preferably elastic stops at the end are provided, which alternately on the closure pieces stop, then the control piston even spared; the elastic design of the stops extends the life of the spool and reduces noise.
  • the supply / discharge lines from the changeover valves open into close the locking pieces so that they are off the spool cannot be influenced and this alternately the air pressure of the Compressed air source is exposed.
  • control piston occurs when there is a second control chamber on each provided on both sides of the first control chamber and alternately fluidly connected to an associated outlet is.
  • a pneumatic piston engine according to the invention according to Fig.1 essentially from a piston cylinder 1, a cylinder head 2, a cylinder base 3 and a working piston 4 and the required Control devices and compressed air lines.
  • the tubular piston cylinder 1 is between the circular disc-shaped cylinder head 2 and the like shaped cylinder base 3 clamped and is on this by means of a concentric flanged disc 21.31 centrically arrested, facing each other first End faces 22,32 of the cylinder head 2 and the cylinder bottom 3 each provided in one piece with these are.
  • a tubular air filter 5 is fitted into a Ring groove 23 on the other (second) end face 24 of the cylinder head 2 is inserted and on the other hand closed by a filter cover 51.
  • Three Tensioning screws 6 clamp the filter cover 51 with the Air filter 5, the cylinder head 2, the piston cylinder 1 and the cylinder bottom 3 with each other so that the Air filter 5 and the piston cylinder 1 taut become.
  • 1, 2 is a clamping screw 6 indicated in Figure 3 is the orientation of all three clamping screws 6 can be seen.
  • FIG. 1 shows the longitudinal section in the region of the cylinder head 2, deviating from the other (axial) section, also been put through a changeover valve 7, that is also provided in the cylinder base 3 in the same way and is drawn enlarged in FIG.
  • Both switch valves 7, whose spaced from a major axis HA of the air piston engine Location emerges from Fig. 3,4, are executed essentially the same and in a circular cylindrical, partly smooth and partly threaded Implementation 25,33 of the cylinder head 2 or the cylinder bottom 3 is provided.
  • the bushings 25, 33 are on the one hand via an associated one Branch line ZL1.2 connected to a main line HL for the compressed air, which in turn from one omitted in the drawing and only by a directional arrow Q illustrated compressed air source fed with compressed air becomes; the arrangement is such that the compressed air is constantly in the Implementations 25.33 is due.
  • the branch line ZL2 bridges outside of the piston cylinder 1 the free space between the cylinder head 2 and the cylinder base 3 with the help of a straight pipe section RS3, which axially parallel to the piston cylinder 1, clamped between the two.
  • Both switch valves 7 working as sliders are in turn axially parallel arranged to the piston cylinder 1 and have a differential slide 71, which consists of a first valve piston 71a larger and a second Valve piston 71b of smaller diameter, which is at a distance a firmly attached to each other on a common valve piston rod 71c are and the two alternate end positions in 1.5 are indicated, where the first end position is extended and the second are drawn with dashed lines.
  • the bushings are 25.33 from the piston chamber 10 of the piston cylinder 1 by an elastic closure 72 pneumatically separated, that in the cylinder head 2 or the cylinder bottom 3 is fastened and has a guide bore 72a in which the Valve piston rod 71c is axially movable. You can in the piston chamber 10 protrude so that then its free end face 71d is in the working area of the working piston 4.
  • the bushings 25, 33 from the surrounding area U are one Locking screw 73 with a central vent hole 73a separated.
  • An aligned threaded bushing 74 is located on the screw plug 73 a guide cylinder 74a in which the second, smaller valve piston 71b is easily guided longitudinally.
  • One ends in the guide cylinder 74a Inlet / outlet Z1.2 to a slide control located in the cylinder head 2 8.
  • the first, larger valve piston 71a is directly on the smooth cylindrical surface of the bushing 25.33.
  • Fig.1 is also indicated that the working piston 4 with a piston rod 41 is provided in the cylinder head 2 and the cylinder bottom 3 is mounted centrally and slightly longitudinally. At its (bottom) end an implement can be coupled; for double-acting devices this is possible at both ends.
  • piston chamber 10 is located on both sides of the working piston 4 each a combined inlet / outlet 26,34 for the compressed air in the Cylinder head 2 and the cylinder bottom 3.
  • the inlets / outlets 26, 34 are by means of Working lines AL1.2 pneumatically connected to the slide control 8, the working line AL2 via a (second) straight pipe section RS2 the free space between the cylinder head 2 and the cylinder bottom 3, clamped between the two, bridged.
  • directional arrows R1 (Fig.2) indicate the oscillating exposure of the working piston 4.
  • control cylinder 81 In one in the form of a socket in the cylinder head 2 inserted control cylinder 81 is a control piston 82 guided axially easily movable.
  • the control cylinder 81 extends transversely to the main axis HA of the Air piston engine and (Fig.1) of this around the dimension e spaced in such a way that the piston rod 41 is not affected in its axial position.
  • the supply / discharge lines open in the vicinity of the closure pieces 83 Z1.2 from the changeover valves 7 so that they, not lockable, always have an associated face of the control piston 82 alternately apply compressed air can.
  • the working piston 4 and the two valve pistons 71a, 71b each with only one piston ring are equipped on their lateral surfaces in the slide control 8 a total of five against each other areas to be sealed by four located on the control piston 82 and approximately the same Piston rings arranged at axial distances from one another pneumatically in corresponding annular grooves 82a are separated.
  • control piston 82 annular control chambers 82b, c recessed, which two adjacent control openings 81a-c with each other flow connections in which the main line HL, the working lines AL1.2 and ventilation lines EL lead; the vent lines EL lead on the other hand indicated in the environment U via the air filter 5 by arrows R2 (Fig.2).
  • the differential slide 71 are under the influence of the constant pending via the branch lines ZL1,2 Air pressure from the main line HL so long with your first valve piston 71a on the respective closure 72 at how the associated, overly in the piston chamber 10 projecting valve piston rod 71c not from the working piston 4 is charged.
  • undressed drawn end position of the differential slide 71 are the respective feed / discharge lines Z1.2 from the associated ones Branch lines ZL1.2 separated and vented via the vent holes 73a.
  • the working piston 4 transports the differential slide 71 into the dashed second end position, then compressed air gets into the supply / discharge lines Z1.2, so that the spool 82 axially into its other End position comes, and the vent holes 73a are cordoned off.
  • the supply / discharge lines Z1.2, accordingly in the first end position of the differential slide 71 act as venting discharges, end on both sides of the control piston 82 and cannot be influenced by this in the control cylinder 81 (Fig.3).
  • the control piston 82 connects to its first control chamber 82b, as indicated in Figure 3, with the Main line HL related control opening 81a one of the control openings 81b, in which one of the working lines AL1.2 opens.
  • the control chamber 82b is consequently always flowing.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
  • Compressor (AREA)
  • Valve Device For Special Equipments (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Nozzles (AREA)
  • Coating Apparatus (AREA)

Claims (15)

  1. Moteur à piston à air comprimé, en particulier pour des appareils de pulvérisation de peinture, des pompes doseuses, des presses à graisse et similaires, avec un piston moteur (4) alimenté par alternance en air comprimé dans un cylindre de piston (1) sur ses deux faces de piston au moyen un distributeur à tiroir (8) et de ce fait pouvant prendre un mouvement oscillatoire, qui comporte une tige de piston (41) guidée axialement dans une tête de cylindre (2) et/ou dans un fond de cylindre (3), dans lesquels sont prévues respectivement une entrée ou une sortie (26) pour l'admission ou l'échappement de la pression dans le cylindre de piston (1) ou hors du cylindre de piston (1), le distributeur à tiroir (8) comportant un piston distributeur (82) mobile à l'intérieur d'un maítre cylindre (81) et dans ce maítre cylindre (81) étant prévus des orifices (81a-c) qui respectivement relient via le flux une conduite d'arrivée/évacuation (Z1, 2) pour l'air comprimé avec le maítre cylindre (81) et sont influencés par le piston distributeur (82), le distributeur à tiroir (8) étant disposé sur/dans la tête de cylindre (2) ou sur/dans le fond de cylindre (3), en sorte que les axes (SA, HA) du piston distributeur (82) et du piston moteur (4) sont disposés approximativement perpendiculairement l'un au dessus de l'autre, la tête de cylindre (2) et le fond de cylindre (3) présentant chacun une soupape d'inversion (7) pour l'air comprimé qui est actionnable par le piston moteur (4) et qui commute le distributeur à tiroir (8), les soupapes d'inversion (7) présentant une tige de piston de soupape (71c) faisant saillie dans le cylindre de piston (1) et actionnable par le piston moteur (4) du moteur à piston à air comprimé ,
       caractérisé en ce que,
    chacune des soupapes d'inversion (7) comporte un tiroir différentiel (71) composé d'un premier piston de soupape (71a) de surface de piston plus grande, et d'un deuxième piston de soupape (71b) de surface de piston plus petite, fixés à distance fixe (a) sur la tige de piston (71c) de soupape.
  2. Moteur à piston à air comprimé selon la revendication 1, caractérisé en ce que l'axe (SA) du piston distributeur (82) est à distance de l'axe (HA) du piston moteur (4).
  3. Moteur à piston à air comprimé selon la revendication 1 ou 2, caractérisé en ce que les pistons de soupape (71a, b) sont fixés sur la tige de piston de soupape (71c) de sorte que la pression d'air affleurant dans le boítier de soupape depuis une conduite de dérivation (ZL1, 2) déplace le tiroir différentiel (71) dans une première position extrême, dans laquelle la tige de piston de soupape (71c) fait saillie partiellement dans le cylindre du piston (1).
  4. Moteur à piston à air comprimé selon la revendication 3, caractérisé en ce que la soupape d'inversion (7) est montée parallèle à l'axe du piston moteur (4), et dans la tête du cylindre (2) et le fond du cylindre (3) est disposé une pièce de guidage cylindrique circulaire (25, 33) pour le logement du tiroir différentiel (71).
  5. Moteur à piston à air comprimé selon la revendication 4, caractérisé en ce que la pièce de guidage (25, 33) est obturée par rapport au cylindre de piston (1) au moyen d'une fermeture de préférence élastique (72), que la tige de piston de soupape vient traverser et sur laquelle peut s'appuyer le premier piston de soupape (71a) sous l'effet de l'air comprimé.
  6. Moteur à piston à air comprimé selon la revendication 5, caractérisé en ce que la pièce de guidage (25, 33) comporte en outre une douille taraudée (74) bloquée par une vis de blocage (73), dans laquelle est guidé le deuxième piston de soupape (71b) qui ferme une conduite d'arrivée/évacuation (Z1, 2) conduisant dans la soupape d'inversion (7), tant que le premier piston de soupape (71a) reste appuyé sur la fermeture (72).
  7. Moteur à piston à air comprimé selon une des revendications 1 à 6, caractérisé en ce que .
    (a) dans le maítre cylindre (81) est prévu à chaque fois au moins orifice (81 a-c) respectivement pour la conduite d'arrivée/évacuation (Z1, 2) des soupapes d'inversion (7), une conduite principale (HL) venant de la source d'air comprimé (Q) et des conduites de ventilation (EL) venant du moteur à piston à air comprimé vers l'environnement (U),
    (b) des entrées/sorties d'air comprimé (26, 34) situées dans le cylindre du piston (1) des deux côtés du piston moteur (4) et reliées avec le distributeur à tiroir (8) par des conduites moteur (AL1,2) sont commandées chacune par une des soupapes d'inversion (7), laquelle est reliée avec la source d'air comprimé (Q) par une conduite principale (HL) via une conduite de dérivation (ZL1, 2) et influent sur l'une des conduites d'arrivée/d'évacuation (Z1, 2) au maítre-cylindre (81),
    (c) le piston distributeur (82) peut prendre un mouvement oscillatoire axialement sous l'effet du flux d'air comprimé traversant alternativement ces conduites d'arrivée/d'évacuation (Z1, 2),
    (d) sur le piston distributeur (82) sont prévues des chambres de distribution (82b, c) influant sur les orifices (81a, c), en sorte que simultanément la conduite principale (HL) est reliée alternativement à une entrée/sortie (26, 34) et une sortie (EL) est reliée à l'environnement (U), et
    (e) les conduites de dérivation (ZL1, 2) venant de la conduite principale (HL) sont séparées sans obturation possible.
  8. Moteur à piston à air comprimé selon la revendication 7, caractérisé en ce que les chambres de distribution (82b, c) sont conçues de façon à ce que la source d'air comprimé (Q) soit reliée via le flux en permanence via la conduite principale (HL) avec l'une des entrées/sorties (26).
  9. Moteur à piston à air comprimé selon l'une des revendication 7 ou 8, caractérisé en ce que l'une des conduites de dérivation (ZL2) est guidée par un premier élément tubulaire (RS1) encastré à l'extérieur du cylindre de piston (1) entre la tête de cylindre (2) et le fond du cylindre (3)
  10. Moteur à piston à air comprimé selon l'une des revendications 7 à 9, caractérisé en ce que l'une des conduites moteur (AL1, 2) pour les entrées/sorties (26) est guidée par un deuxième élément tubulaire (RS2) encastré à l'extérieur du cylindre de piston (1) entre la tête de cylindre (2) et le fond du cylindre (3).
  11. Moteur à piston à air comprimé selon l'une des revendications 7 à 10, caractérisé en ce que la conduite d'arrivée/évacuation (Z2) de l'une des soupapes d'inversion (7) est reliée avec le distributeur à tiroir (8) par un troisième élément tubulaire (RS3) encastré à l'extérieur du cylindre de piston (1) entre la tête de cylindre (2) et le fond du cylindre (3).
  12. Moteur à piston à air comprimé selon l'une des revendication 1 à 11, caractérisé en ce que le maítre cylindre (81) est fermé du côté frontal par des éléments de fermeture (83).
  13. Moteur à piston à air comprimé selon à la revendication 12, caractérisé en ce que, sur la face frontale du piston distributeur (82) sont prévues des butées (84), de préférence élastiques venant alternativement en butée sur les éléments de fermeture (83).
  14. Moteur à piston à air comprimé selon l'une des revendications 1 à 13, caractérisé en ce que les conduites d'arrivée/évacuation (Z1, 2) venant des soupapes d'inversion (7), débouchent au voisinage des éléments de fermeture (83), en sorte de ne pas pouvoir être influencés par le piston distributeur (82).
  15. Moteur à piston à air comprimé selon l'une des revendications 1 à 14, caractérisé en ce que sur le piston distributeur (82) est prévue de chacun des deux côtés de la première chambre de distribution (82b) une deuxième chambre de distribution (82c) reliée via le flux alternativement avec un échappement correspondant (EL).
EP98109823A 1997-06-19 1998-05-29 Moteur à pistons à air comprimé Expired - Lifetime EP0886036B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29710807U DE29710807U1 (de) 1997-06-19 1997-06-19 Druckluft-Kolbenmotor
DE29710807U 1997-06-19

Publications (3)

Publication Number Publication Date
EP0886036A2 EP0886036A2 (fr) 1998-12-23
EP0886036A3 EP0886036A3 (fr) 1999-06-16
EP0886036B1 true EP0886036B1 (fr) 2003-07-23

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EP98109823A Expired - Lifetime EP0886036B1 (fr) 1997-06-19 1998-05-29 Moteur à pistons à air comprimé

Country Status (8)

Country Link
US (1) US6123008A (fr)
EP (1) EP0886036B1 (fr)
JP (1) JPH1162501A (fr)
KR (1) KR19990007134A (fr)
CN (1) CN1203322A (fr)
AT (1) ATE245763T1 (fr)
DE (2) DE29710807U1 (fr)
TW (1) TW408213B (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19860466C1 (de) * 1998-12-28 2000-06-29 Schmidt & Co Gmbh Kranz Pneumatisch angetriebene Hydraulikpumpe
US6868774B2 (en) 2001-10-05 2005-03-22 Nordson Corporation Shaft coupling and shifting mechanism for pneumatic pump
US6951163B1 (en) 2001-10-05 2005-10-04 Nordson Corporation Shaft coupling and shifting mechanism for pneumatic pump
US8568112B2 (en) * 2005-07-29 2013-10-29 Graco Minnesota Inc. Reciprocating piston pump with air valve, detent and poppets
US8632315B2 (en) 2010-01-29 2014-01-21 Ingersoll-Rand Company Air motor having ceramic valves
US8474363B2 (en) 2011-07-03 2013-07-02 Vincent M. Kelly Axial piston and valve shaft fluid engine
EP2753797A4 (fr) 2011-09-09 2015-04-08 Ingersoll Rand Co Moteur pneumatique comportant une interface d'unité de commande logique programmable, et procédé de rattrapage d'un moteur pneumatique
CN103206252B (zh) * 2012-09-06 2015-09-16 祥天控股（集团）有限公司 可变多缸空气动力发动机的控制机构
US9879660B2 (en) * 2014-06-26 2018-01-30 Springboard Biodiesel, Llc Pump for removing liquids from vessels under vacuum
FR3031134B1 (fr) * 2014-12-26 2018-02-16 Exel Industries Moteur a air comprime et pompe comprenant un tel moteur
JP2016156405A (ja) * 2015-02-23 2016-09-01 アネスト岩田株式会社 パイロットバルブ
CN106622742A (zh) * 2016-11-24 2017-05-10 宁波大叶园林设备股份有限公司 电动机驱偏滚珠锥柱塞具氟注塑铝青铜圈对数阀的喷雾泵
CN107335558A (zh) * 2016-11-24 2017-11-10 宁波大叶园林设备股份有限公司 发动机驱偏滚柱锥柱塞的氟塑铍青铜胶膜套对数阀喷雾泵
KR200492412Y1 (ko) 2018-07-11 2020-10-08 김광석 차량용 접이식 발판장치
CN109296583A (zh) * 2018-10-09 2019-02-01 上海泰昌健康科技股份有限公司 一种迷你气缸及应用其的气路结构
DE102019113640B3 (de) * 2019-05-22 2020-09-17 Heraeus Medical Gmbh Differenzdruckmotor und Verfahren zum Betreiben eines Differenzdruckmotors
CN110404707B (zh) * 2019-08-28 2021-02-12 浙江万盛机械有限公司 一种球阀喷漆设备

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2759455A (en) * 1956-08-21 Hydraulic power system
DE299211C (fr) *
US630380A (en) * 1899-01-11 1899-08-08 William B Mann Engine for air-pumps.
US833809A (en) * 1903-01-29 1906-10-23 Westinghouse Air Brake Co Steam or other fluid pressure motor.
US811665A (en) * 1904-10-29 1906-02-06 Enos B Sage Fluid-pressure motor.
US1089718A (en) * 1913-01-18 1914-03-10 Adrian N Metzelaar Fluid-controlling mechanism for cylinders.
US1161787A (en) * 1913-11-01 1915-11-23 William H Mcbarron Combined motor and pump.
DE330195C (de) * 1917-09-16 1920-12-10 Knapp Maschinenfabrik W Motor zum Antrieb von Schuettelrutschen mit Hubverstellung und Drosselung des Arbeitsmittels
DE643575C (de) * 1935-03-24 1937-04-12 Zimmermann Hans Steuerung fuer einen oder mehrere eine Anlage, beispielsweise eine Schuettelrutsche, gemeinsam antreibende kolbengesteuerte Druckluftmotore
DE720237C (de) * 1939-12-16 1942-04-29 Eickhoff Geb Vorrichtung zur Fuellungsregelung von Druckluftmotoren fuer den Schuettelrutschenbetrieb
ES305323A1 (es) * 1964-10-16 1965-02-01 Ciedad Anenima Com Espanola Pa Cilindro de accionamiento neumatico alternativo
US3348803A (en) * 1964-10-30 1967-10-24 Parker Hannifin Corp Piston reversing actuator valve
US3374713A (en) * 1966-12-30 1968-03-26 Broughton Corp Reciprocating fluid motor
US3618468A (en) * 1969-06-24 1971-11-09 Aro Corp Reciprocating air motor exhaust assembly
DE2626954C2 (de) * 1976-06-16 1985-04-11 Schmidt, Kranz & Co Gmbh, Zweigniederlassung Maschinenbau, 3421 Zorge Steuerschieberanordnung für eine durch Druckluft angetriebene Hydraulikpumpe
US4381180A (en) * 1981-07-13 1983-04-26 Sell John R Double diaphragm pump with controlling slide valve and adjustable stroke
DE3342388C3 (de) 1983-11-24 1996-05-23 Wagner Wilhelm Wiwa Luftmotor für Farbspritzgeräte, Fettpressen und dergleichen
US4846045A (en) * 1987-12-07 1989-07-11 Mcneil (Ohio) Corporation Expansible chamber motor
SE8801423D0 (sv) * 1988-04-18 1988-04-18 Dominator Ab Pneumatisk ventil for styrning av i synnerhet tryckluftdrivna membranpumpar

Also Published As

Publication number Publication date
CN1203322A (zh) 1998-12-30
TW408213B (en) 2000-10-11
US6123008A (en) 2000-09-26
DE59809063D1 (de) 2003-08-28
JPH1162501A (ja) 1999-03-05
ATE245763T1 (de) 2003-08-15
KR19990007134A (ko) 1999-01-25
EP0886036A3 (fr) 1999-06-16
DE29710807U1 (de) 1997-08-28
EP0886036A2 (fr) 1998-12-23

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