EP2483560B1 - Pumpe für ein hochdruckreinigungsgerät - Google Patents
Pumpe für ein hochdruckreinigungsgerät Download PDFInfo
- Publication number
- EP2483560B1 EP2483560B1 EP10765399.0A EP10765399A EP2483560B1 EP 2483560 B1 EP2483560 B1 EP 2483560B1 EP 10765399 A EP10765399 A EP 10765399A EP 2483560 B1 EP2483560 B1 EP 2483560B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pump
- pressure
- line
- accordance
- suction line
- 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.)
- Active
Links
- 238000004140 cleaning Methods 0.000 title claims description 25
- 238000005304 joining Methods 0.000 claims description 27
- 238000007789 sealing Methods 0.000 claims description 22
- 239000007788 liquid Substances 0.000 claims description 20
- 238000011144 upstream manufacturing Methods 0.000 claims description 7
- 238000005086 pumping Methods 0.000 description 16
- 239000012530 fluid Substances 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000004891 communication Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- 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
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/02—Stopping, starting, unloading or idling control
-
- 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
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/121—Casings
-
- 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
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/128—Crankcases
-
- 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
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/02—Stopping, starting, unloading or idling control
- F04B49/03—Stopping, starting, unloading or idling control by means of valves
- F04B49/035—Bypassing
Definitions
- the invention relates to a pump for a high-pressure cleaning device for conveying a cleaning liquid with a pump housing in which at least one pumping chamber is arranged, in which at least one reciprocating piston plunges and the at least one inlet valve with a suction line and at least one outlet valve with a pressure line is connected, and with a leading from the pressure line to the suction line bypass line, in which an overflow valve is arranged, the valve body is connected to an actuator which, depending on the flow rate of the cleaning liquid in the pressure line, the valve body in a closed position or an open position shifts.
- Such pumps are from the DE 93 01 796 U1 known.
- a cleaning liquid such as water
- put under pressure and then be directed, for example, via an attachable to the pressure line pressure hose and arranged at the free end of the pressure hose nozzle head to an object.
- the closed operation of the pump does not lead to a continuous high pressure in the pressure line, which has a considerable energy consumption of the pump and considerable heat losses result, usually funded by the pump cleaning fluid is circulated with the lowest possible flow resistance, ie it is returned from the pressure line back to the suction line.
- the pressure line is connected via a bypass line to the suction line and in the bypass line an overflow valve is arranged.
- the overflow valve In operation of the Pump, ie with the nozzle head open, the overflow valve closes the flow connection between the pressure line and the suction line. In circulation operation, ie with the nozzle head closed, the overflow valve releases the flow connection between the pressure line and the suction line.
- the overflow valve has a valve body which is connected to an actuator. Depending on the flow rate of the cleaning liquid in the pressure line, the actuator moves the valve body in a closed position or an open position. The flow rate of the cleaning liquid in the pressure line depends on whether the nozzle head is open or closed. If the nozzle head is closed, the flow rate drops, and this causes the actuator to move the valve body of the spill valve in its open position, so that the pump then goes into circulation operation. If the nozzle head is opened, the flow rate in the pressure line increases and this causes the actuator to move the valve body of the spill valve in the closed position, so that the pump goes into the working mode.
- Object of the present invention is to develop a pump of the type mentioned in such a way that it can be produced more cost-effectively and manufacturing technology easier.
- the pump housing has a rear housing part and a front housing part, which are joined together, and that the suction line has a running in the joining region between the two housing parts Saug effetsabites, in which the Bypass line opens.
- the pump housing comprises a rear and a front housing part.
- the rear housing part faces a drive device of the pump, for example an electric motor, wherein a transmission and / or a swash plate and a piston guide can be arranged between the electric motor and the rear housing part.
- the front housing part sits on the rear housing part and faces away from the drive device of the pump.
- the arrangement of a Saug effetsabitess in the joining region between the front and the rear housing part of the pump housing has the additional advantage that the geometric shape of the Saug effetsabiteses subject to lower boundary conditions, because before the joining of the two housing parts of the joining area is directly accessible for machining and shaping.
- Saug effetsabites therefore a curvy course can be chosen if necessary, without thereby increasing the production costs are significantly increased.
- the pump according to the invention is therefore particularly suitable for portable high-pressure cleaning devices with relatively low weight.
- the suction line section arranged between the two housing parts extends between a first sealing ring and a second sealing ring, which are positioned between the two housing parts.
- the two sealing rings can not only have the function of tightly sealing the suction line section arranged between the two housing parts, but they can additionally assume the function of sealing the joining region between the two housing parts.
- the suction line section extending between the two housing parts forms an outlet section of the suction line.
- At least one input line which receives an input valve and leads to a pump chamber, can connect to the output section.
- the suction line comprises an input section arranged in the front housing part and the suction line section extending in the joining region between the two housing parts forms an output section of the suction line.
- the input section can start from a suction connection of the pump and, for example, aligned transversely to the pressure line be.
- At the input portion of the arranged between the housing parts output section can connect directly.
- the suction line section running in the joining region is arcuately curved at least in one section.
- the arcuate curvature is particularly advantageous in view of the limited space in the pump housing, because thereby the suction line section receiving spaces for the inlet and outlet valves and for the actuator and, if necessary, bypass the pressure line.
- a circular arc-shaped course of the suction line section arranged in the joining region has proved favorable.
- the suction line section extending in the joining region is designed as a self-contained ring.
- an annular space may extend in the joining region between the rear housing part and the front housing part, which forms the said suction line section. This annular space may have a relatively large flow cross-section, so that the at least one pumping space to be pumped cleaning liquid can be supplied with low flow resistance.
- the front housing part of the pump housing has a rear parting surface, which is placed with the interposition of at least one sealing element on a front-side parting surface of the rear housing part.
- a channel is formed in at least one of the parting surfaces, which forms at least a part of the arranged in the joining region between the two housing parts Saug effetsabiteses.
- the channel is on an outside arranged by at least one of the housing parts and can thereby be produced very inexpensively.
- a channel is formed, which is covered by the front-side parting surface of the rear housing part and forms the arranged in the joining region between the two housing parts Saug effetsabites.
- a channel is formed, which is covered by the rear parting surface of the front housing part and forms the Saug effetsabites.
- the running in the joining region between the two housing parts suction line section engages in an advantageous embodiment, the pressure line at a distance.
- the suction line section extending in the joining region surrounds the pressure line in an annular manner.
- the actuator is designed as a control piston which divides a control chamber of the front housing part into a low-pressure chamber and a high-pressure chamber, is displaceable in the control chamber and is connected via a piston rod to the valve body of the overflow valve, the low-pressure chamber via a control line is connected downstream of a throttle point with the pressure line and the high-pressure chamber is connected via an upstream of the spill valve arranged portion of the bypass line to the pressure line.
- a throttle point is arranged in the pressure line of the pump, for example an injector, with its Help a cleaning chemical sucked and can be added to the pressurized cleaning liquid.
- the throttle point In the presence of a liquid flow in the pressure line, the throttle point has the consequence that the pressure downstream of the throttle point differs from the pressure upstream of the throttle point. Since the low-pressure chamber via the control line downstream of the throttle point is in communication with the pressure line, whereas the high-pressure chamber is connected upstream of the throttle point via a portion of the bypass line to the pressure line, the control piston is subjected to a liquid pressure in the presence of a liquid flow through the pressure line with a differential pressure. Due to the differential pressure acting on it, the control piston moves the valve body of the overflow valve counter to the flow direction prevailing in the bypass line into a closed position. If the liquid flow is interrupted, the throttle point causes no pressure drop and the pressure in the low pressure chamber corresponds to the pressure in the high pressure chamber.
- control piston In the absence of a differential pressure between the two chambers, the control piston can be acted upon by a dependent of the pressure surfaces of the two chambers resulting force by which it is displaced in the control chamber such that the valve body connected to it passes into an open position and thereby the flow connection between the pressure line and the suction line releases for a circulation operation of the pump.
- control piston is transmitted via the piston rod to the valve body.
- control piston is displaceable parallel to the pressure line and the piston rod is aligned parallel to the pressure line.
- the piston rod via which the valve body of the overflow valve is connected to the control piston, preferably forms on the side facing away from the control piston of the valve body a switching plunger for actuating a Switching element.
- the control piston can thereby be used not only for moving the valve body of the overflow valve but also for actuating a switching element.
- the switching element for example, a drive device of the pump, preferably an electric motor, on and off. By actuating the switch plunger thus the pump can be activated and deactivated. If the fluid flow in the pressure line is prevented in such an embodiment, the overflow valve releases the flow connection between the pressure line and the suction line so that the pressure prevailing in the pressure line can be reduced and the pump is switched off.
- the pump is restarted when the fluid flow in the pressure line is released again by opening the nozzle head connected to the pressure line, because this lowers the pressure in the low-pressure chamber, with the result that the control piston shifts.
- This in turn has the consequence that the flow connection between the pressure line and the suction line is interrupted again, and on the other hand, this has the consequence that the pump is turned on again.
- valve body of the overflow valve is configured in an advantageous embodiment of the invention as a radial extension of the piston rod. This makes it possible to produce the valve body particularly inexpensively.
- the switching plunger immersed in a preferred embodiment of the invention in a molded-in in the rear housing part recording in which the switching element is arranged.
- the switching plunger thus passes through the joining region between the two housing parts.
- bypass line has a section which receives the overflow valve and which intervenes in the region between them in the joining region opens two housing parts extending suction line section and is aligned with the control chamber. Said portion of the bypass line can connect directly to the control chamber.
- control chamber and the overflow valve receiving portion of the bypass line are aligned parallel to the pressure line.
- control chamber and the Letstömventil receiving portion of the bypass line are arranged in a passageway which passes through the front housing part from a front end side to a rear parting surface.
- the longitudinal axis of the through-channel runs parallel to the pressure line.
- a pump 10 is shown schematically for a high-pressure cleaner.
- the pump 10 comprises a pump housing 12 with a rear housing part 14 and a front housing part 16.
- the two housing parts are preferably designed in the form of aluminum die-cast parts.
- the front housing part 16 is provided with a rear parting surface 20 which is placed on a front side parting surface 22 of the rear housing part 14 with the interposition of an outer sealing ring 24 and an inner sealing ring 26.
- the two sealing rings 24 and 26 are concentric with each other at the outer or inner edge of a molded into the rear parting surface 20 of the front housing part 16 annular channel 28 is arranged.
- the annular channel 28 is made in particular FIG. 3 clear. It forms an output section 30 of a suction line, whose input section 32 is formed in the form of a blind hole in the front housing part 16.
- the rear housing part 14 accommodates pumping chambers 34, in each of which a cylindrical piston 36a or 36b is inserted.
- the pistons 36a, 36b are sealed off from the respective pumping chamber 34 by a lip-shaped annular seal 38a or 38b.
- the rear housing part 14 has three pumping chambers, in each of which a piston is immersed. To achieve a better overview are in the drawing only a pumping chamber 34 and two Pistons 36a and 36b shown. All pistons are inserted by a not shown in the drawing, known per se swash plate oscillating in the respective pumping chamber 34 and pulled out by a surrounding the respective piston coil spring 40 back out of the pumping chamber, so that the volume of the pumping chambers 34 changes periodically.
- Each pumping chamber 34 is in fluid communication with the annular output section 30 of the suction line via an input line 42 into which an inlet valve 44 is inserted.
- the input line 42 opens into the front-side parting surface 22 of the rear housing part 14. This is for example FIG. 2 clear.
- each pumping chamber 34 is in flow communication with a longitudinal direction of the pump 10 extending in the front housing part 16 molded pressure line 50.
- the output line 46 opens into the front-side parting surface 22 of the rear housing part and the pressure line 50 extends from the rear parting surface 20 of the front housing part 16 and extends to a front side 52 of the front housing part 16 facing away from the rear housing part 14.
- the end face 52 forms the front end of the pump 10.
- the area between the output lines 46 of the pumping chambers 34 and the pressure line 50 is sealed radially outwardly from the inner sealing ring 26.
- a central pressure valve 54 is arranged and downstream of the pressure valve 54, the pressure line 50 receives a throttle element in the form of an injector 56. This comprises in the usual way a first in the flow direction narrowing and then widening again Through hole 58, from the narrowest point a transverse bore 60 branches off.
- Parallel to the pressure line 50 extends from the end face 52 to the rear parting surface 20, a stepped embossed passage 62 through the front housing part 16 therethrough.
- the end-side end region of the through-channel 62 accommodates a sealing plug 64, which closes off the through-channel 62 on the face side.
- the through-channel 62 defines a control chamber 66, to which a lower section 70 of a bypass line explained in more detail below connects via a step 68.
- the lower section 70 receives an overflow valve 72 and opens into the annular channel 28 and thus into the arranged in the joining region between the two housing parts 14, 16 output section 30 of the suction line.
- the control chamber 66 is cylindrical and receives a sliding sleeve 74, which rests with the interposition of a sealing ring 76 on the wall of the control chamber 66.
- an actuator in the form of a control piston 78 is held displaceable parallel to the longitudinal axis of the pressure line 50.
- the control piston 78 divides the control chamber 66 into a low-pressure chamber 80 facing the closure stopper 64 and a high-pressure chamber 82 facing away from the stopper 64, to which the lower portion 70 of the bypass line adjoins.
- a valve sleeve 86 is inserted with the interposition of a sealing ring 84, which forms a valve seat 88 of the overflow valve 72.
- a valve body 90 of the spill valve 72 in a closed position, the FIG. 4 is shown, sealing applied.
- the valve body 90 is surrounded by a radial extension a piston rod 92 is formed, which extends parallel to the longitudinal axis of the pressure line 50 and is connected with its closure plug 64 facing the end with an integrally formed on the control piston 78 shaft 94.
- the piston rod 92 On the side of the valve body 90 facing away from the shaft 94, the piston rod 92 forms a switch plunger 96, which is slidably guided in a guide sleeve 98 with the interposition of a sealing ring 100.
- the guide sleeve 98 is arranged in alignment with the valve sleeve 86 of the overflow valve 72 and at a distance therefrom in the annular channel 28 of the rear parting surface 20 of the front housing part 16.
- the switching plunger 96 dives with its free end in a receptacle 102 which is formed in the rear housing part 14 and a known per se and in FIG. 1 dash-dotted illustrated switching element 104 receives, which can be actuated by the switch plunger 96.
- the switching plunger thus passes through the joining region between the two housing parts 14 and 16.
- the arranged in the pressure line 50 injector 56 has on its outer side an annular groove 106 into which the transverse bore 60 opens.
- a control line 108 connects, via which the annular groove 106 is in fluid communication with the low pressure chamber 80.
- an upper portion 110 of the bypass line Upstream of the injector 56 and the central pressure valve 54 extends from the pressure line 50 to the high-pressure chamber 82, an upper portion 110 of the bypass line. At the upper portion 110 joins in the passage 62, the already mentioned lower portion 70 of the bypass line.
- the bypass line formed by the two sections 70 and 110 thus defines a flow connection between the pressure line 50 and the outlet section 30 of the suction line. This flow connection can in Depending on the position of the valve body 90 of the overflow valve 72 are released and prevented.
- a radially arranged high pressure section of the joining region between the two housing parts 14 and 16 is thus surrounded by the annular channel and is sealed relative to the annular channel by means of the inner sealing ring 26.
- the inner sealing ring 26 separates the radially centered high-pressure section of the joining region from an annular low-pressure section of the joining region.
- the low pressure section surrounds the high pressure section. It is designed in the form of the annular channel 28 and sealed radially on the outside by means of the outer sealing ring 24.
- the pumping chambers 34 can be supplied with cleaning fluid to be delivered via the inlet section 32 and the outlet section 30 of the suction line and the inlet lines 42 adjoining the outlet section 30 in the joining area.
- the cleaning liquid is pressurized due to the oscillating movement of the pistons 36, and the pressurized liquid is supplied to the pressure line 50 via the output lines 46.
- the pressurized cleaning fluid flows through the injector 56.
- the Pressure line 50 is flowed through with cleaning liquid, thus the lower pressure chamber 80 connected via the control line 108 with the transverse bore 60 is acted upon by a lower pressure than the high pressure chamber connected via the upper portion 110 of the bypass line to the inlet region of the pressure line 50.
- control piston 78 is displaced in the direction of the closure stopper 64, so that the valve body 90 of the overflow valve 72 bears tightly against the valve seat 88, thereby interrupting the flow connection between the pressure line 50 and the outlet section 30 of the suction line.
- the movement of the control piston 78 in the direction of the closure plug 64 is assisted by a compression spring 116, which surrounds the shaft 94 and rests on the one hand on the control piston 78 and on the other hand on the valve sleeve 86.
- the pressure line 50 for example by a nozzle head, which is connected via a pressure hose to the pressure line 50 is closed, resulting in the narrowing of the injector 56 no dynamic pressure reduction, the pressure in this area Rather, the same as the upstream of the pressure valve 54 prevailing pressure.
- equal pressures result in the low-pressure chamber 80 and the high-pressure chamber 82, and according to a suitable dimension of the effective pressure surfaces of the control piston 78, this is thereby displaced against the action of the compression spring 116 in the direction away from the closure stopper 64.
- valve body 90 lifts from the valve seat 88, so that the spill valve 72 releases the flow connection from the pressure line 50 via the portions 70 and 110 of the bypass line to the output section 30 of the suction line.
- the pressure prevailing in the pressure line 50 pressure can be lowered.
- control piston 78 and the associated piston rod 92 also leads to an actuation of the switching element 104.
- the drive of the pump 10 can be switched off. An unnecessary operation of the drive with a closed nozzle head is thereby avoided.
- the configuration of the output section 30 of the suction line in the form of the annular channel 28, which is formed in the rear-side parting surface 20 of the front housing part 16, has the advantage that the cleaning liquid in the output section 30 suffers only very small pressure losses.
- the supply of cleaning fluid to the pumping chambers 34 can thus be carried out with low flow losses.
- passageway 62 is positioned virtually anywhere on the outside of the pressure line 50 be aligned with the passageway 62 each parallel to the pressure line 50. This gives the designer improved design options and the manufacturing cost of the pump 10 can be kept low.
- the production of the output section 30 can be relatively easily done on the outside of the front housing part 14, namely in the region of the rear parting surface 20. This allows a further reduction of the manufacturing cost of the pump 10th
- annular output section 30 Another advantage of the annular output section 30 is that the lower portion 110 of the bypass line can be kept very short. As a result, the pressure loss that suffers the cleaning fluid in the bypass line can be kept low. This in turn has the consequence that the pressure prevailing in the high pressure chamber 82 pressure can be reduced within a very short time in the absence of flow through the pressure line 50 and the overflow valve 72 reliably passes into its open position.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Reciprocating Pumps (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL10765399T PL2483560T3 (pl) | 2009-10-01 | 2010-09-24 | Pompa do myjki wysokociśnieniowej |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009049094A DE102009049094A1 (de) | 2009-10-01 | 2009-10-01 | Pumpe für ein Hochdruckreinigungsgerät |
PCT/EP2010/064162 WO2011039117A1 (de) | 2009-10-01 | 2010-09-24 | Pumpe für ein hochdruckreinigungsgerät |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2483560A1 EP2483560A1 (de) | 2012-08-08 |
EP2483560B1 true EP2483560B1 (de) | 2015-01-14 |
Family
ID=43530005
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10765399.0A Active EP2483560B1 (de) | 2009-10-01 | 2010-09-24 | Pumpe für ein hochdruckreinigungsgerät |
Country Status (9)
Country | Link |
---|---|
US (1) | US8684699B2 (zh) |
EP (1) | EP2483560B1 (zh) |
CN (1) | CN102686882B (zh) |
BR (1) | BR112012007599A2 (zh) |
DE (1) | DE102009049094A1 (zh) |
DK (1) | DK2483560T3 (zh) |
ES (1) | ES2534278T3 (zh) |
PL (1) | PL2483560T3 (zh) |
WO (1) | WO2011039117A1 (zh) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011050714A1 (de) * | 2011-05-30 | 2012-12-06 | Continental Reifen Deutschland Gmbh | Kompressoreinheit |
CN102953974B (zh) * | 2011-08-31 | 2016-05-25 | 宁波蓝达实业有限公司 | 用于高压清洗机的自吸泵 |
CN104053909B (zh) * | 2012-01-20 | 2016-08-17 | 阿尔弗雷德·凯驰两合公司 | 用于高压清洁设备的活塞泵 |
DE102014106673A1 (de) * | 2014-05-12 | 2015-11-12 | Alfred Kärcher Gmbh & Co. Kg | Hochdruckpumpe für Ultrahochdruckanwendungen |
US20170348712A1 (en) | 2014-12-19 | 2017-12-07 | Daniele Marino | Device for emitting a liquid |
AU2015371732B2 (en) | 2014-12-23 | 2021-02-25 | Alfred Kärcher Gmbh & Co. Kg | High-pressure cleaning device |
IT201600072149A1 (it) * | 2016-07-11 | 2018-01-11 | Leuco Spa | Pompa per erogare un liquido. |
IT201800020233A1 (it) * | 2018-12-19 | 2020-06-19 | Tecomec Srl | Valvola di by-pass e regolazione di una pressione |
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DE4404925A1 (de) * | 1994-02-16 | 1995-08-17 | Kaercher Gmbh & Co Alfred | Hochdruckreinigungsgerät |
DE4445519C1 (de) * | 1994-12-20 | 1996-06-05 | Kaercher Gmbh & Co Alfred | Kolbenpumpe für ein Hochdruckreinigungsgerät |
DK34695A (da) * | 1995-03-30 | 1996-11-20 | Kew Ind As | Højtryksrenser med omløbsventil for pumpen |
IT239544Y1 (it) | 1995-07-14 | 2001-03-05 | Lavorwash S R L | Struttura di pompa a piattello rotante particolarmente peridropulitrici |
DE19607881C2 (de) * | 1996-03-01 | 2003-07-17 | Kaercher Gmbh & Co Kg Alfred | Pumpe für ein Hochdruckreinigungsgerät |
DE19617778C2 (de) | 1996-04-13 | 1998-12-17 | Suttner Gmbh & Co Kg | Ventilpistole für eine Hochdruckreinigungseinrichtung sowie Hochdruckreinigungseinrichtung mit einer solchen Ventilpistole |
DE19706591A1 (de) | 1997-02-20 | 1998-08-27 | Bosch Gmbh Robert | Druckventil |
DE29703009U1 (de) | 1997-02-20 | 1997-04-30 | Rowenta-Werke GmbH, 63071 Offenbach | Flüssigkeitspumpe |
DE19728225A1 (de) | 1997-07-02 | 1999-01-07 | Omb Oberdorfer Maschinenfabrik | Regelsicherheitsblock |
DE29712659U1 (de) | 1997-07-17 | 1997-09-18 | Alfred Kärcher GmbH & Co, 71364 Winnenden | Hochdruckreinigungsgerät |
DE29811791U1 (de) | 1998-07-02 | 1999-11-18 | Robert Bosch Gmbh, 70469 Stuttgart | Druckventil |
DE19859336C1 (de) * | 1998-12-22 | 2000-06-29 | Kaercher Gmbh & Co Alfred | Hochdruckreinigungsgerät |
DE10053248A1 (de) * | 2000-10-26 | 2002-05-08 | Kaercher Gmbh & Co Alfred | Hochdruckreinigungsgerät |
DE20103142U1 (de) | 2001-02-22 | 2001-05-10 | Alfred Kärcher GmbH & Co., 71364 Winnenden | Pumpeneinheit für ein Hochdruckreinigungsgerät |
ITPD20030053U1 (it) * | 2003-07-10 | 2005-01-11 | Lavorwash Spa | Struttura di pompa idraulica a pistoni assiali |
CN2694014Y (zh) | 2003-12-25 | 2005-04-20 | 上海亿力电器有限公司 | 用于高压清洗机泵内靠间隙泄压的关枪停机型溢流阀 |
DE102005050009B4 (de) * | 2005-10-11 | 2007-07-05 | Alfred Kärcher Gmbh & Co. Kg | Hochdruckreinigungsgerät |
JP4319667B2 (ja) | 2006-05-09 | 2009-08-26 | ユニシア ジェーケーシー ステアリングシステム株式会社 | 可変容量形ポンプ |
US20070267063A1 (en) | 2006-05-22 | 2007-11-22 | Greg Davis | Unloader valve for pressurized fluid delivery system |
DE102007017970A1 (de) | 2007-04-11 | 2008-10-16 | Alfred Kärcher Gmbh & Co. Kg | Hochdruckreinigungsgerät |
DE102008059782A1 (de) | 2007-12-13 | 2009-06-18 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Hydraulischer Zylinder |
-
2009
- 2009-10-01 DE DE102009049094A patent/DE102009049094A1/de not_active Withdrawn
-
2010
- 2010-09-24 EP EP10765399.0A patent/EP2483560B1/de active Active
- 2010-09-24 BR BR112012007599-3A patent/BR112012007599A2/pt not_active Application Discontinuation
- 2010-09-24 CN CN201080042589.1A patent/CN102686882B/zh active Active
- 2010-09-24 DK DK10765399T patent/DK2483560T3/en active
- 2010-09-24 PL PL10765399T patent/PL2483560T3/pl unknown
- 2010-09-24 WO PCT/EP2010/064162 patent/WO2011039117A1/de active Application Filing
- 2010-09-24 ES ES10765399.0T patent/ES2534278T3/es active Active
-
2012
- 2012-03-21 US US13/425,486 patent/US8684699B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
US20120211034A1 (en) | 2012-08-23 |
EP2483560A1 (de) | 2012-08-08 |
ES2534278T3 (es) | 2015-04-21 |
CN102686882B (zh) | 2015-03-25 |
PL2483560T3 (pl) | 2015-07-31 |
BR112012007599A2 (pt) | 2020-10-20 |
DK2483560T3 (en) | 2015-03-23 |
WO2011039117A1 (de) | 2011-04-07 |
US8684699B2 (en) | 2014-04-01 |
CN102686882A (zh) | 2012-09-19 |
DE102009049094A1 (de) | 2011-04-07 |
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