EP1277955A2 - Mehrzylindrige Hochdruckplungerpumpe - Google Patents
Mehrzylindrige Hochdruckplungerpumpe Download PDFInfo
- Publication number
- EP1277955A2 EP1277955A2 EP02013912A EP02013912A EP1277955A2 EP 1277955 A2 EP1277955 A2 EP 1277955A2 EP 02013912 A EP02013912 A EP 02013912A EP 02013912 A EP02013912 A EP 02013912A EP 1277955 A2 EP1277955 A2 EP 1277955A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- pump according
- pressure
- plunger pump
- roller
- housing
- 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
Links
Images
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
- F04B1/14—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 stationary cylinders
-
- 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
- F04B1/14—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 stationary cylinders
- F04B1/141—Details or component parts
- F04B1/146—Swash plates; Actuating elements
-
- 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
- F04B1/26—Control
- F04B1/28—Control of machines or pumps with stationary cylinders
- F04B1/29—Control of machines or pumps with stationary cylinders by varying the relative positions of a swash plate and a cylinder block
- F04B1/295—Control of machines or pumps with stationary cylinders by varying the relative positions of a swash plate and a cylinder block by changing the inclination of the swash plate
Definitions
- the invention relates to a multi-cylinder high-pressure plunger pump according to the Preamble of claim 1.
- Such an axial plunger pump is known from DE 196 53 158 A1, in which a swash plate is provided for moving the plunger with one plunger coupled, axially movable plunger actuator is used.
- the Swashplate is over a cam plate opposite the housing stored and has a fixed angle to the axis of rotation. Is accordingly volume control of the pumped liquid is neither provided nor makeable.
- JP 61-277881 A is also a multi-cylinder high pressure plunger pump known in which a multi-cylinder pump head arranged in a row Cylinders is provided, which is flanged to a crankcase, the one Crankshaft and cranks driven by it, the corresponding plunger drive back and forth. Apart from the fact that this is only an adjustment the pressure over the speed of the crankshaft in relatively small areas can be made, the drive requires expensive components such as the crankshaft and the same.
- the object of the invention is a multi-cylinder high pressure plunger pump to create according to the preamble of claim 1, in which a volume control is possible.
- the plungers are arranged equidistantly on a circle and the drive unit comprises a roller, about the axis of rotation of a swash plate is arranged to tumble, against the one coupled with a plunger, axially Movable plunger actuators are pressed, it is not only possible essentially to use castings machined as little parts as components and avoid expensive forgings, but it's also a linear one Volume control is provided, for example, from zero to a maximum, apart from the fact that the pressure is adjustable via the drive speed of the pump is.
- the high-pressure plunger pump shown comprises a housing 1 for Inclusion of a drive unit with an input shaft 2 on one end of the housing 1 coupled to a drive unit such as an electric motor can be.
- a carrier 4 the so-called Lantern attached, which has a plate 5, the housing 1 on the The input shaft 2 on the opposite side is closed at the end.
- the plate 5 is stored Plunger actuators 6, which are coupled to plungers 7.
- the carrier 4 comprises one for Plate 5 arranged in parallel with spaced plate 8, which several, shown in Embodiment carries three pump heads 9, the longitudinal axes accordingly the longitudinal axes of the plungers 7 are arranged equidistantly on a circle.
- the plungers 7 can, as described in DE 198 19 972 C1, in Be pressure sleeves, each with a suction and coaxial to the pressure sleeve axis a pressure valve with corresponding valve elements arranged one behind the other are provided, via which a working space of the respective plunger 7 with a Inlet chamber and the working space with a pressure chamber of a common Pressure chamber are connected.
- valve elements can be an insert body with a continuous, on the one hand to the working space of the associated plunger 7 open and on the other hand by the pressure valve during the suction stroke of the associated Plungers include closed bore, the latter a pressure sleeve receives the pressure chamber side with a receiving the pressure valve elements, screwed against the insert body supporting pressure valve guide sleeve is that the plunger sealingly clamps the pressure sleeve against the insert body.
- the housing 1 comprises an in substantially cylindrical portion 10 preferably in the form of a casting, the is closed at one end by a cover 11, which has a nozzle 12 carries, which is closed by a plate 13 and two by a ring 14 spaced roller bearings 15 for supporting the input shaft 2.
- the input shaft 2 carries a pinion 16 at the end, which with a internally toothed ring gear 17 meshes.
- the ring gear 17 is coaxial with a roller 18 arranged and screwed to it.
- the roller 18 is in the cylindrical Section 10 of the housing 1 is rotatably supported by roller bearings 19.
- the roller 18 can also be a casting with minor machining.
- the roller 18 has a transverse to the axis of the input shaft 2 and thus transverse to the axis of rotation of the roller 18 extending roller bore 20 which a piston 21 receives and on the one hand closed by a plate 22 and on the other is limited by a stop ring 23. Between the piston 21 and the plate 22 there is a chamber 24 which has corresponding bores 25 with a hydraulic rotary union 26 is connected via which the chamber 24th Pressure medium can be fed, as indicated by dots in Fig. 3, 4.
- the piston 21 has a circumferential step 27, which before lifting the piston 21 from the Plate 22 is pressurized to effect this lift-off.
- the piston 21 has a plan view substantially rectangular cutout 28 which receives an insert 29.
- the insert 29 is in Axial direction of the cutout 28 is spherical and sits over bearings 30, approximately Needle roller bearing, on a the tapered end of a pin 31.
- the latter is from the Roll 18 out through a corresponding opening and with a Articulated fork 32 screwed into a cup-shaped recess on the back Ribs 33 reinforced and with a sleeve 34 for receiving the pin 31st provided swash plate 35 and with the swash plate 35 is screwed, cf. 3, 4.
- the joint fork 32 is part of a spherical joint 36, which comprises an articulated fork 37 and around which the swash plate 35 by moving it out of the central position shown in FIG. 3 into a position shown in FIG. 4 shown, pivoted angular position is pivotable.
- the swash plate 35 carries a hardened and thus wear-resistant Pressure plate 38 against which the plunger actuators 6 are held pressed.
- the Plunger actuators 6 are axially to the longitudinal axis of the plunger 7 as a result of Swash movement of the swash plate 35 movable. 6 and thus adjusted accordingly with respect to the longitudinal axes of the plungers 7.
- There the plunger actuators 6 are kept pressed against the pressure plate 38 remains on get predetermined angle corresponding to a predetermined pressure by which the pump stroke is determined. At 0 ° the pump stroke is zero. If the hydraulic pressure is reset to zero, which results from the plunger actuators 6 exerted pressure on the swash plate 35 so that the latter in their 3 is returned.
- the joint 36 comprises that shown there Embodiment a cross pin 39, the ends of which are each spherical Sliding joint bearing 40 in the two opposite legs of the articulated fork 37 as well as offset by 90 ° in the Swivel fork-side joint fork 32 are mounted.
- This enables Manufacturing tolerances in a simple manner. - Instead, you can also use any other gimbal.
- each plunger actuator 6 Guide bush 41 is provided, which in a corresponding opening of the plate 5th inserted and screwed to it.
- the plunger actuator 6 is as Differential piston provided with a shoulder 42, whereby in the guide bushing 41st an annular space 43 is formed, the outside via an opening 44 with compressed air from For example, 2 bar can be applied to the plunger 6 in contact with the Keep pressure plate 38 pressed.
- the plunger actuator 6 has an inner bore 45, which is adjacent to the pressure plate 38 by an end piece forming a stopper 46 is closed with the spherical surface 47 abutting the pressure plate 38. A Keep pressure plate 38 pressed.
- the plunger actuator 6 has an inner bore 45, which is adjacent to the pressure plate 38 by an end piece forming a stopper 46 is closed with the spherical surface 47 abutting the pressure plate 38.
- a Bore 48 of small diameter leads from the annular space 43 in the Inner bore 44 formed space so that the latter acts as a compensation reservoir, so that excessive heating of the compressed air is prevented.
- the one to the individual Guide bushings 41 leading compressed air lines are interconnected.
- a Spring instead of the compressed air supply to the plunger actuator 6, a Spring should be provided, but this requires a larger length, so that the embodiment of Fig. 7 is preferred.
- the plunger actuator 6 has a blind bore 49 on the plunger side receives a pressure plate 50 on the bottom.
- a bearing shoe 51 also rolls on this spherical bearing surface 52 from that at the adjacent end of a plunger shoe 53 is arranged, this end with the bearing shoe 51 via disc springs 54 is pressed against the thrust washer 50.
- the package is made of disc springs 54 by means of a plunger shoe 53 inserted into the blind bore 49 Distance surrounding clamping sleeve 55 stretched. This will make the plunger 7 accordingly articulated.
- a high pressure plunger pump Hydraulic circuit is provided which includes an oil pump 56 connected to the interior the housing 1 forms a circuit which also a 3 / 2- or 5/3-way valve 57 comprises, which is followed by a pressure control valve 58, via which the pressure in the Chamber 24 and thus the stroke of the high pressure plunger pump is adjustable. Is also between the pressure control valve 58 and the hydraulic bushing 26 a throttle check valve 59 is arranged.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
Description
Claims (15)
- Mehrzylindrige Hochdruckplungerpumpe mit mehreren Plungern (7) und einer in einem Gehäuse (1) angeordneten Antriebseinheit hierfür, wobei die Plunger (7) äquidistant auf einem Kreis angeordnet sind und die Antriebseinheit ein in dem Gehäuse (1) drehbar gelagertes Antriebsteil umfaßt, das eine Taumelscheibe (35) um die Drehachse des Antriebsteils taumelnd mitnimmt, wobei gegen die Taumelscheine (35) mit jeweils einem Plunger (7) gekoppelte, axial bewegliche Plungerbetätiger (6) gedrückt sind, dadurch gekennzeichnet, daß das Antriebsteil eine Walze (18) ist, die einen sich in Richtung der Drehachse der Walze (18) erstreckenden Ausschnitt (28) aufweist, der die sich mit der Walze (18) mitdrehende kugelgelenkartige Lagerung aufnimmt, wobei der Ausschnitt (28) in einem hydraulisch beaufschlagbaren Kolben (21) angeordnet ist, der in einer Walzenbohrung (20) senkrecht zur Drehrichtung der Walze (18) verschiebbar gelagert ist.
- Hochdruckpumpe nach Anspruch 1, dadurch gekennzeichnet, daß die Taumelscheibe (35) an der der kugelgelenkartigen Lagerung abgewandten Seite über ein Gelenk (36) gehäuseseitig angeordnet ist.
- Hochdruckplungerpumpe nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß in der Walze (18) die an einer Seite gehäuseseitig kardanisch angelenkte Taumelscheibe (35) an der anderen Seite zur Drehachse der Walze (18) kugelgelenkartig gelagert ist.
- Hochdruckplungerpumpe nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Kolben (21) ein- oder beidseitig hydraulisch beaufschlagbar ist.
- Hochdruckplungerpumpe nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Walze (18) mit einem von einer Eingangswelle (2) antreibbaren Hohlrad (17) drehfest gekoppelt ist.
- Hochdruckplungerpumpe nach einem der Ansprüche 2 bis 5, dadurch gekennzeichnet, daß die gehäuseseitige Anlenkung der Taumelscheibe (35) zwei sich kreuzende Gelenkgabeln (32, 37) mit einem Kreuzzapfen (39) umfaßt, der in den Gelenkgabeln (32, 37) über Gleitgelenklager (40) gelagert ist.
- Hochdruckplungerpumpe nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Taumelscheibe (35) eine Druckscheibe (38) trägt, die mit den Plungerbetätigern (6) in Eingriff steht.
- Hochdruckplungerpumpe nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die Taumelscheibe (35) einen Zapfen (31) aufweist, der über einen hierauf gelagerten Einsatz (29) in dem Ausschnitt (28) gelagert ist.
- Hochdruckplungerpumpe nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß das Gehäuse (1) einen zylindrischen Abschnitt (10) aufweist, in dem die Walze (18) gelagert ist.
- Hochdruckplungerpumpe nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß das Gehäuse (1) einen Deckel (11) aufweist, der eine Eingangswelle (2) lagert.
- Hochdruckplungerpumpe nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß das Gehäuse (1) taumelscheibenseitig durch eine Platte (5) verschlossen ist, die die gehäuseseitige Anlenkung der Taumelscheibe (35) trägt und Durchtrittsöffnungen für die Plungerbetätiger (6) aufweist.
- Hochdruckplungerpumpe nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, daß die Plungerbetätiger (6) als von Führungsbuchsen (41) aufgenommene, druckmittelbeaufschlagbare Differenzdruckkolben ausgebildet sind.
- Hochdruckplungerpumpe nach Anspruch 12, dadurch gekennzeichnet, daß die Plungerbetätiger (6) druckluftbeaufschlagbar und hohl sind, wobei ihr Innenraum (45) mit einem druckluftbeaufschlagbaren äußeren Ringraum (43) über eine enge Bohrung (48) verbunden ist.
- Hochdruckplungerpumpe nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, daß Plungerbetätiger (6) Endstücke (46) mit sphärischer Oberfläche (47) aufweisen, die mit der Taumelscheibe (35) gehalten werden.
- Hochdruckplungerpumpe nach einem der Ansprüche 1 bis 14, dadurch gekennzeichnet, daß die Plunger (7) an den Plungerbetätigern (6) kugelgelenkartig angelenkt sind.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10131001 | 2001-06-27 | ||
DE10131001A DE10131001C1 (de) | 2001-06-27 | 2001-06-27 | Mehrzylindrige Hochdruckplungerpumpe |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1277955A2 true EP1277955A2 (de) | 2003-01-22 |
EP1277955A3 EP1277955A3 (de) | 2004-01-02 |
EP1277955B1 EP1277955B1 (de) | 2005-05-25 |
Family
ID=7689644
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02013912A Expired - Lifetime EP1277955B1 (de) | 2001-06-27 | 2002-06-24 | Mehrzylindrige Hochdruckplungerpumpe |
Country Status (5)
Country | Link |
---|---|
US (1) | US6866484B2 (de) |
EP (1) | EP1277955B1 (de) |
AT (1) | ATE296403T1 (de) |
DE (2) | DE10131001C1 (de) |
ES (1) | ES2243625T3 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE112004001050T5 (de) * | 2003-06-18 | 2006-06-22 | Thomas Industries, Inc., Sheboygan | Hybrid-Taumelelement-Pumpe |
US7451687B2 (en) * | 2005-12-07 | 2008-11-18 | Thomas Industries, Inc. | Hybrid nutating pump |
US20100101407A1 (en) * | 2007-03-21 | 2010-04-29 | William Harry Lynn | Hybrid nutating pump with anti-rotation feature |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61277881A (ja) | 1985-05-31 | 1986-12-08 | Sugino Mach:Kk | 高圧プランジヤポンプ |
DE19653158A1 (de) | 1995-12-28 | 1997-07-03 | Unisia Jecs Corp | Axial-Plungerkolbenpumpe |
DE19819972C1 (de) | 1998-05-05 | 1999-10-07 | Woma Maasberg Co Gmbh W | Mehrzylindrige Hochdruckplungerpumpe |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2256079A (en) * | 1940-12-03 | 1941-09-16 | Watson Stillman Co | Swash plate mechanism |
US2940325A (en) * | 1957-02-15 | 1960-06-14 | Nakesch Michael | Internal combustion engine with swash plate drive |
US3304886A (en) * | 1965-11-12 | 1967-02-21 | Borg Warner | Variable displacement check valve pump |
US3364886A (en) * | 1966-01-05 | 1968-01-23 | Burn Zol Inc | Incinerator |
JPS4963003A (de) * | 1972-06-16 | 1974-06-19 | ||
US4364230A (en) * | 1980-10-07 | 1982-12-21 | J. I. Case Company | Hydrostatic transmission overspeed prevention circuit |
US4418586A (en) * | 1981-05-20 | 1983-12-06 | General Motors Corporation | Swash plate drive mechanism |
FR2510698A1 (fr) * | 1981-07-30 | 1983-02-04 | Creusot Loire | Mecanisme de transformation de mouvement |
US5113809A (en) * | 1991-04-26 | 1992-05-19 | Ellenburg George W | Axial cylinder internal combustion engine having variable displacement |
KR960700412A (ko) * | 1994-03-16 | 1996-01-20 | 이소가이 찌세이 | 가변 압축기(Variable displacement compressor) |
-
2001
- 2001-06-27 DE DE10131001A patent/DE10131001C1/de not_active Expired - Fee Related
-
2002
- 2002-06-24 AT AT02013912T patent/ATE296403T1/de not_active IP Right Cessation
- 2002-06-24 ES ES02013912T patent/ES2243625T3/es not_active Expired - Lifetime
- 2002-06-24 EP EP02013912A patent/EP1277955B1/de not_active Expired - Lifetime
- 2002-06-24 DE DE50203178T patent/DE50203178D1/de not_active Expired - Lifetime
- 2002-06-25 US US10/179,338 patent/US6866484B2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61277881A (ja) | 1985-05-31 | 1986-12-08 | Sugino Mach:Kk | 高圧プランジヤポンプ |
DE19653158A1 (de) | 1995-12-28 | 1997-07-03 | Unisia Jecs Corp | Axial-Plungerkolbenpumpe |
DE19819972C1 (de) | 1998-05-05 | 1999-10-07 | Woma Maasberg Co Gmbh W | Mehrzylindrige Hochdruckplungerpumpe |
Also Published As
Publication number | Publication date |
---|---|
US20030002990A1 (en) | 2003-01-02 |
US6866484B2 (en) | 2005-03-15 |
EP1277955B1 (de) | 2005-05-25 |
ES2243625T3 (es) | 2005-12-01 |
EP1277955A3 (de) | 2004-01-02 |
ATE296403T1 (de) | 2005-06-15 |
DE10131001C1 (de) | 2002-11-07 |
DE50203178D1 (de) | 2005-06-30 |
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