EP3359309A1 - Luftgekühltes hochdruckreinigungsgerät - Google Patents
Luftgekühltes hochdruckreinigungsgerätInfo
- Publication number
- EP3359309A1 EP3359309A1 EP16757025.8A EP16757025A EP3359309A1 EP 3359309 A1 EP3359309 A1 EP 3359309A1 EP 16757025 A EP16757025 A EP 16757025A EP 3359309 A1 EP3359309 A1 EP 3359309A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cooling air
- housing
- cleaning device
- pressure cleaning
- pump unit
- 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.)
- Pending
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 80
- 238000001816 cooling Methods 0.000 claims abstract description 170
- 238000013016 damping Methods 0.000 claims abstract description 45
- 239000011358 absorbing material Substances 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 3
- 101100495769 Caenorhabditis elegans che-1 gene Proteins 0.000 claims 1
- 238000005192 partition Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 2
- 239000006261 foam material Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
- B08B3/026—Cleaning by making use of hand-held spray guns; Fluid preparations therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B2203/00—Details of cleaning machines or methods involving the use or presence of liquid or steam
- B08B2203/02—Details of machines or methods for cleaning by the force of jets or sprays
- B08B2203/0223—Electric motor pumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B2203/00—Details of cleaning machines or methods involving the use or presence of liquid or steam
- B08B2203/02—Details of machines or methods for cleaning by the force of jets or sprays
- B08B2203/0235—Cooling the motor pump
Definitions
- the invention relates to an air-cooled high-pressure cleaning device, comprising a housing and a motor pump unit accommodated therein with a motor and a high-pressure pump driven by the latter, and at least one cooling air channel for cooling air for cooling the motor pump unit arranged or formed in the housing and communicating with the atmosphere via at least one housing opening fluidly connected.
- Object of the present invention is to provide a high-pressure cleaning device of the type mentioned, which has a lower noise emission.
- a generic high-pressure cleaning device which is characterized according to the invention by a motor pump unit at least partially surrounding air guide member which is fluidly connected to the at least one cooling air passage, and by damping elements, via which the air guide member is supported on the housing.
- an air guide part which surrounds the motor pump unit at least partially. Cooling air can flow through the at least one cooling air channel and the air guide part and thereby ensure effective cooling of the motor pump unit.
- At least one cooling air duct is provided, in particular a cooling air duct, via which cooling air from the atmosphere is supplied to the air duct part. Alternatively or additionally, it can be provided that cooling air is discharged from the air guide part into the atmosphere via a cooling air duct.
- the at least one cooling air channel makes it possible to even out the cooling air flow, so that the noise emission due to the air flow in the high-pressure cleaning device according to the invention can be kept as low as possible.
- the damping elements are provided, via which the air guide part is supported on the housing.
- the damping elements make it possible to ensure a vibration isolation of the air guide part relative to the housing.
- the air guide part may be on the damping elements, for example, arranged in the housing or formed by this housing walls or other types of support elements (projections, sockets, partitions, etc.) supported. Due to the decoupling of vibration, the noise emission of the high-pressure cleaning device attributable to structure-borne noise can be further reduced and, as a result, a particularly low-noise high-pressure cleaning device can be provided. - -
- the air guide part is free of direct contact with the housing and / or walls of the at least one cooling air channel. Vibrations of the air guide part are not transmitted in this way directly to the housing, especially on walls of the at least one cooling air duct. Instead, the damping elements are effective to dampen vibrations of the air guide part.
- the motor pump unit is free of direct contact with the housing and / or walls of the at least one cooling air channel.
- the air guide part preferably extends over the entire or substantially entire length of the motor pump unit. This makes it possible to ensure a defined cooling air flow over the entire or substantially entire length of the motor pump unit.
- Individual sections of the motor pump unit such as a pump head, a pump inlet or a pump outlet on an end face of the motor pump unit, may be arranged wholly or partially outside the air guide part.
- the air guide part may surround the motor pump unit in a jacket-like manner and to have an opening on at least one end side, in particular an end face, via which the at least one air guide channel and the air guide part open into one another.
- the air guide member may surround the motor pump unit in the circumferential direction on all sides and for this purpose, for example, have a cylindrical or substantially cylindrical shape.
- an opening is preferably provided, through which a flow connection between the interior of the air guide part and the at least one cooling air channel is ensured.
- a sealing element is preferably arranged on the edge of the at least one opening in order to provide a tight flow connection between the at least one cooling air channel and the air guide part.
- the poetic - - Ment for example, a ring seal, ensures the highest possible flow connection. Any noise of the flowing cooling air, which could otherwise escape between the at least one cooling air duct and the air guide part can be avoided in this way.
- the sealing element may also have a damping effect and in particular provide a damping element. In this way, an additional, vibration-decoupling effect between the air guide part and the at least one cooling air channel can be effected at the edge of the at least one opening.
- the motor pump unit has a fan wheel driven by a shaft of the motor, which is arranged on an opening of the air guide part and conveys cooling air via the motor pump unit.
- the fan is positioned, for example, at a frontal opening and promotes the cooling air over the engine and the pump across the air guide part. In this way, effective cooling of the motor pump unit can be ensured.
- a pump inlet line and / or a pump outlet line are led out of it through an end opening of the air guide part or that a pump head of the high-pressure pump passes through the opening.
- the pump input line for supplying pressurized cleaning liquid and / or the pump output line for pressurized cleaning liquid may be passed through, for example, the opening of the air guide member and the cooling air passage and exit from the housing.
- the pump inlet line and / or the pump outlet line are led out laterally, for example transversely to the axial direction, out of the air guide part.
- the housing has or forms housing walls, between which and the air guide part, the damping elements for Ab- - - Are positioned on the housing walls.
- the housing walls are arranged or formed.
- the air guide part abuts the housing walls via the damping elements. This allows, for example, in an advantageous embodiment, to ensure a planar support of the air guide part in the interior of the housing, whereby vibrations of the air guide part can be derived over a large area and damped.
- the housing walls are advantageously aligned transversely to an axial direction of the motor pump unit.
- the housing walls intermediate walls or partitions, which are arranged transversely to the axial direction in the housing.
- the housing walls are double-walled and the damping elements between wall sections of the double-walled housing walls engage.
- This makes it possible to fix the damping elements on the housing walls and to secure the position of the air guide member within the housing.
- the damping elements may be supported in the axial direction on the wall portions of the housing walls, to prevent axial movement of the air guide member.
- a radial movement of the air guide part can be prevented, for example, by webs connecting the wall sections, on which the damping elements can also be supported.
- the damping elements are designed annular or ring segment-shaped and the air guide part in each case at least partially surrounded.
- the damping elements are arranged in a plane transverse to an axial direction of the motor pump unit.
- the damping elements are ring segment sections, at least two of which are arranged at an axial position of the motor pump unit.
- the housing - - Is composed of housing half shells. A respective segment can be positioned on a housing half shell. Then the motor pump unit can be inserted with the surrounding air guide part in the housing half shell. The further housing half shell with the further segment arranged thereon can then be positioned over the first housing half shell and joined together with it. The installation of the high-pressure cleaning device can be carried out very easily.
- At least two mutually spaced positions at least one damping element for supporting the air guide member is arranged on the housing.
- two axial positions are present, on each of which at least one damping element is present.
- the damping elements are made for example of a rubber material or a plastic material.
- damping elements are removable after removal of the housing and in particular manually removable.
- the replacement of damping elements as the age of the high-pressure cleaning device is thereby designed simply, whereby the low-noise operation of the high-pressure cleaning device can be maintained.
- the at least one cooling air channel is advantageously formed at least in sections between an outer wall of the housing and at least one further, enclosed or formed by the housing channel wall at a distance from the outer wall.
- the at least one cooling air channel can thereby be formed integrally by the housing.
- the outer wall may form a wall of the cooling air channel at least in sections in order to simplify the design of the at least one cooling air channel.
- the at least one further channel wall is preferably free of contact with the damping elements. Any vibrations not absorbed via the damping elements are thereby not transmitted directly to the channel wall. This proves to be advantageous in practice for further reducing the noise emission.
- the at least one cooling air channel runs with a channel section in a longitudinal direction of the high-pressure cleaning device and preferably extends in the transverse direction of the high-pressure cleaning device over its entire or substantially entire width.
- the at least one cooling air channel may extend in particular over the entire or substantially entire length of the high-pressure cleaning device.
- the high-pressure cleaner may have a compact structure in this way.
- the motor pump unit is received with the air guide member and supported on the housing via the damping elements. Over the entire length and / or width of the high-pressure cleaning device, the at least one cooling air channel can extend.
- the at least one cooling air channel is lined on the inside at least in sections with a sound-absorbing material.
- the sound-absorbing material for example, a foam material
- the noise emission can be further reduced.
- noises of the motor pump unit can be absorbed.
- flow noises of the cooling air in the cooling air passage are attenuated by the sound absorbing material.
- the at least one cooling air duct is configured angled, and the cooling air flowing through the at least one cooling air duct experiences an at least one deflection. It can be seen in practice that the noise emission based on the air flow can be reduced by at least one deflection. In the region of the bend, which leads to a deflection of the cooling air of advantageously approximately 90 °, is - -
- the at least one cooling air duct suitably lined with a sound-absorbing material.
- the motor pump unit is advantageously aligned parallel to a duct section of the at least one cooling air duct, and the cooling air flowing through the duct section and the air duct part expediently undergoes a double deflection of preferably approximately 90 ° each time. Accordingly, the cooling air flowing through the passage portion and through the air guide portion may flow in opposite directions. With a compact design of the high-pressure cleaning device thereby a relatively long air flow within the housing allows and achieves a high noise reduction.
- the at least one cooling air channel which may be configured in cross-section, for example, L-shaped, and the air guide part, the cooling air flows in this embodiment conveniently approximately along a U.
- the high-pressure cleaning device can, as already indicated, have a first cooling air duct through which cooling air can be supplied from the atmosphere to the motor pump unit, and a second cooling air duct through which cooling air can be discharged from the motor pump unit into the atmosphere.
- the air guide part then advantageously has on opposite end sides and in particular end faces a respective opening, via which the first cooling air channel opens into the air guide part and via which the air guide part opens into the second cooling air channel.
- the channel section of the first cooling air channel is arranged above and the channel section of the second cooling air channel is arranged below the motor pump unit.
- the channel sections of the cooling channels can each be arranged laterally next to the motor pump unit.
- Position and orientation information such as "above”, “below”, “horizontal” or the like are presently considered to be related to a positioning of the high-pressure cleaning device in a position of use on a viewed as a horizontal bottom surface.
- a touch level defined by the high-pressure cleaning device coincides with a contact plane defined by the floor surface.
- a housing opening, via which cooling air enters the first cooling air channel, and a housing opening, via which cooling air emerges from the second cooling air channel are arranged on opposite sides on the housing. This can avoid that heated, exiting from the second cooling air duct cooling air enters directly into the first cooling air duct. An impairment of the cooling effect can be largely avoided. If possible, the housing openings can be arranged at maximum distance from each other on the high-pressure cleaner.
- a housing opening, via which cooling air enters the first cooling air channel is positioned above a housing opening, via which cooling air exits from the second cooling air channel, based on a height direction of the high-pressure cleaning device.
- the housing opening via which cooling air enters the first cooling air channel, is arranged at the top of the high-pressure cleaning device. Foreign substances or dirt particles are sucked in this way only with relatively low probability in the first cooling air duct, which is particularly advantageous when positioning the high-pressure cleaner on a floor surface.
- the motor pump unit is aligned horizontally in the housing, in which case the bottom surface is assumed to be oriented horizontally.
- the above-mentioned channel sections of the first and / or the second cooling air duct, conveniently above and below the motor pump unit, are then preferably also aligned horizontally.
- the first and / or second cooling air duct can have further duct sections which can be aligned vertically, in particular with a cross-sectionally L-shaped design of the respective cooling air duct.
- the housing has two housing half-shells, wherein the motor pump unit is positioned with the surrounding air guide part between the housing half-shells and is supported on the end faces of housing walls of a respective housing half shell via the damping elements, facing a plurality of end faces of the respective other housing half shell.
- the high pressure pump is for example an axial piston pump.
- Figure 1 is a perspective view of an advantageous embodiment of a high-pressure cleaning device according to the invention, which has a housing with two housing halves;
- Figure 2 is a view corresponding to Figure 1, wherein the housing
- FIG. 3 shows a representation corresponding to FIG. 2, wherein additionally an im
- FIG. 4 shows a horizontal sectional view of the high-pressure cleaning device in the closed state of the housing along the line 4-4 in FIG. 2.
- the drawing shows an occupied by the reference numeral 10 advantageous embodiment of an air-cooled high-pressure cleaning device according to the invention.
- the high-pressure cleaning device 10 comprises a housing 12, which is constructed in an advantageous embodiment of two housing half shells 14, 16.
- the housing half-shell 14 shown facing the user in Figure 1 is hidden in Figures 2 and 3, to look into the interior of the housing 12th release.
- the housing 12 has an underside 18, an upper side 20, a front side 22 and a rear side 24.
- the underside 12, which defines a touch plane, the high-pressure cleaner 10 can be positioned in a position of use on a not shown, assumed horizontal surface. - -
- the housing 12 is designed like a box and comprises at the top 12 a carrying handle 26 for supporting the high-pressure cleaning device 10.
- housing half shells 14, 16 forms in the advantageous embodiment of the high-pressure cleaning device 10 each have a portion of the corresponding wall.
- the structure of the housing 12 with the corresponding walls is explained below using the example of the housing half shell 16 (FIGS. 2 and 3), the corresponding statements also applying to the other housing half shell 14, which forms these walls together with the housing half shell 16.
- the housing 12 has an outer wall 28.
- the outer wall 28 is designed double-walled on the upper side 20 and on the underside 18 for reinforcing the housing 12.
- a plurality of openings of the outer wall 28 are present. These openings are referred to collectively as the housing opening 30.
- a plurality of openings is formed in the transition from the bottom 18 to the back 24 in the outer wall 28. These openings are referred to collectively as the housing opening 32.
- the outer wall 28 is single-walled. Starting from the outer wall 28, a channel wall 34 branches into the housing interior, which is connected at the top 20 with the double-walled section of the outer wall 28 thereon.
- the outer wall 28 at the front side 22 is centrally approximately between the bottom 18 and the top 20 single walled.
- the outer wall 28 is double-walled over a small portion. In Rieh - - tion of the bottom 18 branches off from the outer wall 28 extending into the interior of the housing 12 channel wall 36, which is connected at the bottom 18 to the outer wall 28, near the double-walled there designed portion of the outer wall 28th
- a channel wall 38 is formed in the interior of the housing 12.
- the channel wall 38 has four sections.
- a first section 40 begins at the front side 22 below the housing opening 30.
- the first section 40 is slightly rising and merges into a second section 42.
- the second section 42 extends horizontally and parallel to the outer wall 38 at the double-walled section, approximately over the length of the carrying handle 26th
- the second section 42 extends beyond the center of the high pressure cleaner 10 between the top 20 and the bottom 18 into an approximately vertical third section 44 extending toward the bottom 18.
- the third portion 44 has a recess 48 which is semicircular.
- a fourth portion 46 connects the third portion 44 approximately horizontally with the outer wall 28 on the back 24.
- Another channel wall 50 is formed in the interior of the housing 12. Starting from the rear side 24 in the direction of the front side 22, the channel wall 50 comprises a first section 52.
- the first section 52 extends from the outer wall 28 on the rear side 24 above the housing opening 32.
- the first section 52 is slightly sloping in the direction of the underside 18 and merges into a second portion 52.
- the second portion 54 extends horizontally and parallel to the outer wall 28 at the double-walled portion.
- the second section 54 merges into a third section 56, which is C-shaped in cross section, so that the channel wall 50 is initially curved in the direction of the upper side 20 and then in the direction of the rear side 24. - -
- the third section 56 is followed by a fourth section 58.
- the fourth section is approximately vertical in the direction of the upper side 22 and is provided, for example, with a step 60.
- the fourth section 58 is connected to the first section 40 or the second section 42 of the channel wall 38.
- a recess 62 is formed, which is semicircular.
- the housing 12 is essentially divided in the interior into three sections, namely a first cooling air channel 64, a receiving space 66 and a second cooling air channel 68.
- the first cooling air channel extends with a channel section 70 in the longitudinal direction 72 of the high-pressure cleaning device 10 and essentially over its entire length.
- the channel section 70 is bounded on the upper side by the outer wall 28 and at the bottom by the sections 40 and 42 of the channel wall 38.
- the channel portion 70 is followed by an approximately vertically extending channel portion 74 which is formed between the third portion 44, the channel wall 34, the outer wall 28 and the fourth portion 46.
- the channel section 74 extends to the lower edge of the recess 48.
- the first cooling air channel 64 extends in the transverse direction 76 of the high-pressure cleaning device 10 over its entire width.
- the motor pump unit of the high-pressure cleaning device 10 which will be explained below, can be supplied with cooling air.
- the first cooling air channel 64 has approximately an L-shape, i. the cooling air channel 64 is designed angled. In the transition from the channel section 70 to the channel section 74, a deflection of the cooling air takes place - - about 90 °. Another deflection of about 90 ° experiences the cooling air from the second channel section 74 as it passes through the recess 48 (see below).
- the first cooling air channel 64 is lined in sections with a sound-absorbing material 78.
- the sound-absorbing material 78 for example a foam material, is for example arranged on the inside of the outer wall 28, at least above the second portion 42, and extends to the channel wall 34. Sound-absorbing material 78 may further on the inside of the channel wall 34 and the outer wall to the fourth Section 46.
- sound absorbing material 78 is also disposed on the second portion 42.
- the second cooling air channel 68 extends from the recess 62 with a channel portion 80 approximately vertically toward the bottom 18.
- the channel portion 80 is bounded by the portion 40, the portions 56 and 58 of the channel wall 50, the outer wall 28 and the channel wall 36th
- the channel section 80 merges into a channel section 82 which extends from the channel wall 36 to the rear side 24.
- the channel section 82 thus extends in the longitudinal direction 72 almost over the entire length of the high-pressure cleaning device 10.
- the channel section 82 is bounded on the upper side by the sections 54 and 52 and at the bottom by the outer wall 28.
- the cooling air channel 68 extends over the entire width of the high-pressure cleaning device 10th
- the second cooling air channel 68 has a cross-sectionally L-shaped configuration with an angling between the channel sections 80, 82. As it flows through the second cooling air channel 68 cooling air is deflected just behind the recess 62 by about 90 °. Another diversion around About 90 ° occurs in the region of the bend between the channel sections 80 and 82.
- the second cooling air channel 68 is likewise lined in sections with the sound-absorbing material 78.
- Sound-absorbing material 78 is arranged, for example, on the inside of the outer wall 28, in particular in relation to the second section 54, on which preferably sound-absorbing material 78 is likewise arranged. Also along the channel wall 38 and the outer wall 28 to the first portion 40 is advantageously sound-absorbing material 78 is arranged.
- the receiving space 66 is formed between the channel walls 38 and 50.
- the housing 12 comprises in the receiving space 66 housing walls 84 and 86.
- a respective housing wall 84, 86 is aligned transversely to the longitudinal direction 72 and designed with wall sections 88 and 90 double-walled. Webs 92 connect the wall sections 88 and 90.
- the housing walls 84, 86 are spaced apart in the longitudinal direction 72.
- the housing wall 84 is arranged approximately in the region of the rear end of the carrying handle 26 and the housing wall 86 approximately in the region of the front end of the carrying handle 26. However, this arrangement could also be different.
- the third section 44 thus follows from the rear to the front, the housing wall 84 at a distance therefrom, the housing wall 86 at a distance therefrom, and the fourth section 58 at a distance therefrom.
- the housing walls 84, 86 are in a sense partitions, which divide the receiving space 66 in the longitudinal direction 72 and are aligned in the transverse direction 76. - -
- the high-pressure cleaning device 10 has a motor pump unit 96.
- the motor pump unit 96 includes a motor 98 having a shaft 100 defining an axis 102.
- the motor pump unit 96 is arranged on the high-pressure cleaning device 10 such that the axle 102 extends in the longitudinal direction 72, ie. H. the longitudinal direction 72 is an axial direction.
- the axis 102 is oriented horizontally, ie it runs parallel to the touch level defined by the high-pressure cleaning device 10.
- the motor pump unit 96 further includes a high pressure pump 104 configured as an axial piston pump.
- the high-pressure pump 104 comprises a pump head 106, on which a pump inlet line 108 and a pump outlet line 110 are arranged.
- the motor pump unit 96 is accommodated in the housing 12 such that, starting from the rear side 24, first the fan wheel 112, then the motor 98 and then the high-pressure pump 104 with the lines 108, 110 extending therefrom follow.
- the high-pressure cleaning device 10 has an air guide part 114.
- the air guide member 114 has a substantially cylindrical shape and is concentric with the motor pump unit 96 aligned.
- the air guide member 114 surrounds the motor pump unit 96 in the circumferential direction of the axis 102 on all sides and extends from its rear side 24 facing the end to the pump head 106th
- an opening 118 is formed in the air guide part 114.
- the opening 118 is aligned with the recess 48, which forms an outlet opening of the first cooling air channel 64 in combination with the corresponding recess on the housing half-shell 14.
- a sealing element 120 is arranged in the form of a ring. - -
- an opening 124 in the air guide part 114 is formed at one end portion, namely the front side 122, of the air guide part 114, which faces the front side 22.
- the opening 124 is aligned with the recess 62, which forms an inlet opening in the second cooling air channel 68 in combination with the corresponding recess on the housing half-shell 16.
- a sealing element 126 is arranged, in particular in the form of a ring or partial ring or ring segment. In the present case, the sealing element 126 is not a ring segment.
- a further sealing at the edge of the opening 124 is effected by a arranged on an electrical switching element 127 sealing element (not shown).
- the sealing element 120 ensures a tight flow connection between the first cooling air channel 64 and the air guide part 114, and the sealing element 126 and the further sealing element, not shown, a tight flow connection between the air guide part 114 and the second cooling air channel 68th
- the high-pressure cleaning device 10 further has damping elements 128, via which the air guide part 114 is supported on the housing 12.
- the damping members 128 are made of, for example, vibration absorbing elastic rubber material or plastic material and serve to absorb vibrations between the air guide member 114 due to the operation of the motor pump unit 96 and the housing 12.
- Each of the damping elements 128 extends over an arc of nearly 180 ° in the circumferential direction of the axis 102 (FIG. 3), for example from approximately 150 ° to approximately 170 °.
- Each two damping elements 128 are associated with a housing wall 84 and a housing wall 86 (including the corresponding housing walls of the respective other housing half shell 14). - -
- the damping elements 128 surround the air guide part 114 in the circumferential direction of the axis 102 and transversely thereto.
- a respective damping element 128 is held on the housing wall 84, wherein in the region of the recess 94 in the axial direction between the wall portions 88 and 90 is inserted. In the radial direction, the damping element 128 can be supported on the webs 92 of the housing wall 84.
- the air guide member 114 is supported on the housing 12 via the damping elements 128, namely the housing walls 84, 86. It is a fixation in both the axial direction and in the radial direction possible.
- the high-pressure cleaner 10 is characterized by a particularly quiet operation. This is achieved by providing at least one cooling air channel 64, 68 and also by providing the damping elements 128, via which the air guide part 114 can be supported on the housing 12.
- cooling air is sucked out of the atmosphere through the housing opening 30.
- the cooling air flows through the first cooling air channel 64, is deflected twice and enters via the opening 118 in the air guide part 114 a.
- the motor pump unit 96 is effectively cooled by the cooling air.
- the cooling air then exits via the opening 124 from the air guide member 114 and is deflected twice as it flows through the second cooling air passage 68 to the housing opening 32 and through this into the atmosphere.
- Arrows 132 symbolize the flow direction of the cooling air.
- the cooling air in the high-pressure cleaning device 10 flows along a rectangular meander through the cooling air duct 64, the air duct part 114 and the cooling air duct 68.
- the multiple deflection of the cooling air makes it possible to keep the noise emission due to the air flow low.
- the provision of the sound-absorbing material 78 in the cooling air ducts 64 and 68 is particularly advantageous. Their slit-like configuration along the upper side 20 and the lower side 18 further ensures even quieter operation of the high-pressure cleaning device 10.
- Noises occurring due to the flow of the cooling air in the air guide part 114 can already be damped by this. Any vibrations of the air guide part 114 by the air flow, but in particular by structure-borne noise due to the operation of the motor pump unit 96, can be effectively absorbed via the damping elements 128. The vibrations on the housing 12 are considerably reduced, so that as a result a particularly quiet high-pressure cleaning device 10 is provided.
- the pump input line 108 and the pump output line 110 pass through the channel section 80, the sound absorbing material 78 and the outer wall 28 at the front side 22.
- the lines 108, 110 are spaced from the edges of the openings of the outer wall 28 which they engage. Therefore, no vibration is transmitted to the housing 12 via the lines 108, 110.
- the high-pressure cleaning device 10 has a particularly compact construction due to the respective angling of the cooling air ducts 64, 68.
- the high-pressure cleaner 10 is thereby easy to transport.
- housing openings 30, 32 are arranged on opposite sides of the housing 12. A suction of heated cooling air, which passes through the housing opening 32 into the atmosphere, immediate - - Bar again on the housing opening 30 in the cooling air duct 64 can be largely avoided.
- the housing opening 30 is arranged on the top side of the high-pressure cleaning device 10. This reduces the likelihood of foreign objects such as dirt being sucked into the interior of the housing.
Landscapes
- Cleaning In General (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015117079.5A DE102015117079A1 (de) | 2015-10-07 | 2015-10-07 | Luftgekühltes Hochdruckreinigungsgerät |
PCT/EP2016/070064 WO2017060003A1 (de) | 2015-10-07 | 2016-08-25 | Luftgekühltes hochdruckreinigungsgerät |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3359309A1 true EP3359309A1 (de) | 2018-08-15 |
Family
ID=56800292
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16757025.8A Pending EP3359309A1 (de) | 2015-10-07 | 2016-08-25 | Luftgekühltes hochdruckreinigungsgerät |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP3359309A1 (de) |
JP (1) | JP2018535821A (de) |
CN (1) | CN107921486B (de) |
DE (1) | DE102015117079A1 (de) |
WO (1) | WO2017060003A1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6921226B2 (ja) | 2017-04-07 | 2021-08-18 | アルフレッド ケルヒャー エスエー ウント コンパニー カーゲー | 空冷式高圧洗浄装置 |
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WO1997023308A1 (de) * | 1995-12-22 | 1997-07-03 | Alfred Kärcher GmbH & Co. | Hochdruckreinigungsgerät |
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DE102008009246A1 (de) | 2008-02-07 | 2009-08-13 | Alfred Kärcher Gmbh & Co. Kg | Hochdruckreinigungsgerät |
DE102008019524A1 (de) * | 2008-04-09 | 2009-10-15 | Alfred Kärcher Gmbh & Co. Kg | Hochdruckreinigungsgerät |
DK2620228T3 (en) * | 2008-11-14 | 2017-08-21 | Kaercher Gmbh & Co Kg Alfred | Pressure Washer |
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DK2488309T3 (da) * | 2009-10-14 | 2014-07-14 | Kaercher Gmbh & Co Kg Alfred | Højtryksrenser |
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US9474424B2 (en) * | 2012-06-01 | 2016-10-25 | Bissell Homecare, Inc. | Surface cleaning apparatus |
CN104411418A (zh) * | 2012-06-29 | 2015-03-11 | 阿尔弗雷德·凯驰两合公司 | 高压清洁设备 |
JP6038544B2 (ja) * | 2012-08-22 | 2016-12-07 | リョービ株式会社 | 高圧洗浄機 |
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- 2016-08-25 CN CN201680048246.3A patent/CN107921486B/zh active Active
- 2016-08-25 EP EP16757025.8A patent/EP3359309A1/de active Pending
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CN107921486A (zh) | 2018-04-17 |
WO2017060003A1 (de) | 2017-04-13 |
CN107921486B (zh) | 2020-12-08 |
DE102015117079A1 (de) | 2017-04-13 |
JP2018535821A (ja) | 2018-12-06 |
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