EP2145699B1 - Kraftstofftankbelüftung an einem Hochdruckreiniger - Google Patents

Kraftstofftankbelüftung an einem Hochdruckreiniger Download PDF

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Publication number
EP2145699B1
EP2145699B1 EP08013001A EP08013001A EP2145699B1 EP 2145699 B1 EP2145699 B1 EP 2145699B1 EP 08013001 A EP08013001 A EP 08013001A EP 08013001 A EP08013001 A EP 08013001A EP 2145699 B1 EP2145699 B1 EP 2145699B1
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EP
European Patent Office
Prior art keywords
pressure washer
hose
fuel tank
fuel
ventilation
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.)
Not-in-force
Application number
EP08013001A
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English (en)
French (fr)
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EP2145699A1 (de
Inventor
Hans Jørgen Bank Olesen
Mads Glavind
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.)
Nilfisk AS
Original Assignee
Nilfisk Advance AS
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Publication date
Application filed by Nilfisk Advance AS filed Critical Nilfisk Advance AS
Priority to EP08013001A priority Critical patent/EP2145699B1/de
Publication of EP2145699A1 publication Critical patent/EP2145699A1/de
Application granted granted Critical
Publication of EP2145699B1 publication Critical patent/EP2145699B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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    • 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
    • B08B2203/007—Heating the liquid

Definitions

  • the present invention generally relates to the ventilation of the fuel tank of a high-pressure washer, and in particular to a technique of preventing the leakage of liquid fuel due to the expansion of vaporized fuel inside the fuel tank. More specifically, the present invention relates to a pressure washer that can be placed in two different positions without any significant risk of leakage of liquid fuel.
  • a problem that may occur if the orientation of the described fuel tank is changed is that the surface of the fuel may shift so that the ventilation tube is coupled to the fuel tank at a point below the maximum fuel surface. Air and fumes from the fuel may get trapped in a gas pocket above the fuel surface; and if the temperature increases the volume of the gas pocket expands, which may result in that fuel is pressed out through the ventilation hose.
  • a high-pressure washer for delivering a liquid, where said high-pressure washer can be placed in a first position and a second position, and said high-pressure washer comprising:
  • the heater of the high-pressure washer may comprise a burner for providing the conditions for combustion of the fuel, a heater coil through which the liquid to be heated passes, and an electrically driven fan to drive the heat of the combustion over the heater coil.
  • the combustion may be initiated by an electrical spark, e.g. by piezo ignition.
  • the hoses may be of flexible tubing and the outer hose connection may be a T-joint.
  • a ventilation hose may also be one of the arms of a T-junction constituting the outer hose connection.
  • the gas in the first and second residual spaces may be a mixture of air and fumes of the fuel.
  • the entire amount of fuel supplied to the fuel tank may be contained within the enclosed space defined by the fuel tank.
  • the placement of the ventilation hoses, and the construction of the ventilation hoses may be contained within one or both of the first and the second ventilation hoses. This means that the actual volume of fuel contained within the fuel tank may vary depending on what position the high-pressure washer is placed in. Consequently, the volume of the first residual space may not be the same as the volume of the second residual space.
  • the shape of the fuel tank may be adjusted to partly fill the gaps between the other parts of the high-pressure washer, or to minimize the distance between the fuel tank and the other parts. In many constructions, this may be achieved by having an irregularly shaped fuel tank. However, an irregularly shaped fuel tank containing fuel may, when place in a certain position, give rise to several enclosed - or residual - spaces containing trapped gas. However, the trapped gas may be ventilated by having a ventilation hose coupled to each enclosed space.
  • the high-pressure washer at the same time, is to be easily transportable, this demands that the high-pressure washer, and subsequently the fuel tank, is insensitive to orientation or positioning. If the difference in orientation between two positions is sufficiently large, an individual ventilation hose may be needed for each of the enclosed spaces of air and fuel fumes in each of the two positions.
  • the first amount of gas may upon expansion be ventilated also through the second ventilation hose and the outer ventilation hose to the ambient air.
  • the second amount of gas may upon expansion be ventilated also through the first ventilation hose and the outer ventilation hose to the ambient air. This means that the two ventilation hoses may ventilate the same residual space in either of the first or the second position.
  • the outer hose connection may be located above the first hose connection when the high-pressure washer is placed in the first position. In a similar fashion, the outer hose connection may be located above the second hose connection when the high-pressure washer is placed in the second position. This way a trapping caused by the hoses may be avoided with essentially straight ventilation hoses. With a fuel surface below the first hose connection when being in the first position, and below the second hose connection when being in the second position, there is in both positions of the fuel tank an unobstructed passage for an expanding gas through one of the ventilation hoses.
  • the second ventilation hose may be constructed so that it, when the high-pressure washer is placed in the first position, reaches a point above the first hose connection before being coupled to the outer hose connection.
  • the first ventilation hose may, when the high-pressure washer is placed in the second position, reach a point above the second hose connection before being coupled to the outer hose connection. This way a trapping caused by the hoses may be avoided, even if the outer hose connection is located below the first hose connections when the high-pressure washer is placed in the first position, or if the outer hose connection is located below the second hose connections when the high-pressure washer is placed in the second position.
  • the high-pressure washer may further comprise a fuel tank filler for enabling the filling of the fuel tank with the fuel, whereby a maximum amount of fuel may be defined as the largest amount of fuel that may be provided to the fuel tank by employing the fuel tank filler; where the maximum amount of fuel, when provided to the fuel tank, defines a first maximum fuel surface inside the fuel tank when the high-pressure washer is placed in the first position, and/or a second maximum fuel surface inside the fuel tank when the high-pressure washer is placed in the second position; and the first hose connection may be located above the first maximum fuel surface when the high-pressure washer is placed in the first position, and the second hose connection may be located above the second maximum fuel surface when the high-pressure washer is placed in the second position.
  • a fuel tank filler for enabling the filling of the fuel tank with the fuel, whereby a maximum amount of fuel may be defined as the largest amount of fuel that may be provided to the fuel tank by employing the fuel tank filler; where the maximum amount of fuel, when provided to the fuel tank, defines
  • the fuel tank filler may be an opening in the tank that is sealed by a cap, a lid, or a sealing element with a similar function.
  • the fuel tank filler may also comprise a hose, or a similar arrangement, that extends from the fuel tank, where the hose has an inner end coupled to the fuel tank, and an outer end through which the fuel is supplied.
  • the fuel may be supplied through the joint first, second, and outer ventilation hoses, i.e. these joint elements may correspond to the fuel tank filler.
  • the fuel tank of the high-pressure washer may define a first upper end and a first lower end when the high-pressure washer is placed in the first position, where the first hose connection may be located at the first upper end and the second hose connection may be located at the first lower end.
  • the fuel tank of the high-pressure washer may define a second upper end and a second lower end when the high-pressure washer is placed in the second position, where the second hose connection may be located at the second upper end and the first hose connection may be located at the second lower end. Therefore, as the liquid fuel, due to the force of gravity, adjusts to changes in the orientation, the suggested placing of the hose connections may ensure that the residual spaces within the fuel tank can be ventilated.
  • the first hose connection will be located at the upper end of the fuel tank. This may allow for a larger amount of fuel in the fuel tank, as the placing may provide an unobstructed passage for an expanding gas in the first residual space, even at fuel volumes close to the volume of the fuel tank.
  • the high-pressure washer may further comprise a pump supported by the frame for delivering the liquid under pressure, the pump further comprising a motor for driving the pump; a control unit, the control unit further comprising a control panel; and a cover that in conjunction with the frame prevents parts of or the whole of the heater, the fuel tank, the first ventilation hose, the second ventilation hose, the outer ventilation hose, the fuel tank filler, the pump, and/or the control unit from being reached by hand.
  • the pump may be a piston pump, which may be driven by an electrical motor.
  • the control unit which is connected to one or more of the other parts of the fuel pump, determines working parameters such as pressure, flow and temperature of the delivered liquid, where the working parameters may be set manually with the associated control panel.
  • the high-pressure washer may be in either a resting state or a moving state, and the high-pressure washer may further comprise a specific contact point or surface; a pair of wheels supported by the frame; and a handle connected to and extending from the frame.
  • the high-pressure washer in the resting state may be supported by the specific contact point or surface and the pair of wheels, while the high-pressure washer in the moving state may be supported by the handle and the pair of wheels.
  • the high-pressure washer In the resting state the high-pressure washer is at rest relative to its surroundings, while in the moving state it accelerates or moves at a constant velocity relative to its surroundings.
  • the moving state may be achieved by manual work of a person, e.g. where the person supports the handle by hand and pulls the high-pressure washer after him.
  • the pair of wheels may be of the same construction and/or dimensions; and they may be sharing a common central axis of rotation.
  • the wheels and the handle may be mounted - or supported - so that the moving state will be essentially free from force components being perpendicular to the direction of motion the high-pressure washer.
  • the resting state and the first position discussed above may define the same orientation of the high-pressure washer, where the handle may extend in a substantially vertical direction. This means that in a moving state, the handle may extend in a direction between the vertical and the horizontal.
  • the first ventilation hose may define a first ventilation path going within the first ventilation hose and having its first endpoint located at the first hose connection and its second endpoint located at the outer hose connection, such that the gravitational potential energy of a mass following the first ventilation path from its first endpoint to its second endpoint increases in a monotonic fashion.
  • the second ventilation hose may define a second ventilation path going within the second ventilation hose and having its first endpoint located at the second hose connection and its second endpoint located at the outer hose connection, such that the gravitational potential energy of a mass following the second ventilation path from its first endpoint to its second endpoint increases in a monotonic fashion.
  • the probability for a gas trap to occur in the corresponding hoses is significantly reduced.
  • the outer ventilation hose may define an outer ventilation path going within the outer ventilation hose and having its first endpoint located at the outer hose connection and its second endpoint located at the outer opening to the ambient air, such that the gravitational potential energy of a mass following the outer ventilation path from its first endpoint to its second endpoint increases in a monotonic fashion.
  • the probability for a gas trap to occur in the outer ventilation hose is significantly reduced.
  • the exterior of a preferred embodiment of a high-pressure washer is shown in Fig. 1 .
  • the high-pressure washer 1 has a frame 2 providing support for its other components, and it is fitted with a cover 11 for protecting the delivery unit.
  • a handle 14 is connected to the frame 2 for making the transport and handling of the high-pressure washer 1 easier.
  • the cover has an opening 33 for receiving a control unit so that the control panel 10 of the unit is reachable by hand.
  • the control panel comprises knobs 17 for manually setting an active operation mode of the high-pressure washer 1.
  • a first knob may be for turning on and turning off the a heater of the liquid to be delivered
  • a second knob may be for setting the temperature of the liquid
  • a third knob may be for setting the pressure and/or volumetric flow of the liquid.
  • the high-pressure washer 1 has an air inlet-outlet 23 that allows air to reach the fan and heater behind the cover 11.
  • the air inlet-outlet 23 will also enable cooling of the delivery unit by air convection.
  • the cover 11 defines an opening 19 for the exhaust pipe 16 of the heater, where the opening 19 has such dimensions that the exhaust pipe 16 does not reach the cover 11 when it is in its closed position or changed from its closed position.
  • FIG. 2 A preferred embodiment of a high-pressure washer 1 with its cover removed is shown in Fig. 2 .
  • the frame 2 supports the delivery unit 24 comprising a fan 5 driven by an electric motor 6, a pump 8 driven by another electric motor 18 for delivering the liquid under pressure, and a heater 20 for heating the liquid.
  • the fan 24 establishes an airflow in the heater 20 leading out through the exhaust pipe 16.
  • the heater comprises a burner and a heater coil (not shown in Fig. 2 ) contained within its exterior, where the fuel tank supplies the burner with fuel for combustion.
  • the liquid passes through the heater coil, while the airflow drives the heat of the combustion over the heater coil, thereby providing heating of the liquid.
  • the control unit 9 is supported by the heater 7 so that the high-pressure washer 1 can be easily operated by the control panel 10 even though the cover has been removed.
  • Fig. 3 a side-view of the presently preferred embodiment of the high-pressure washer in Fig. 1 is illustrated.
  • the cover 11 is attached to the frame by a set of screws 22 at the top of the cover and releasable joints at the front bottom 64 of the high-pressure washer. If the screws 22 are released, this means that the cover 11 can be swung open with the turning point at the front bottom 64. In this motion the opening 19 for the exhaust pipe 16 will not reach the exhaust pipe 16, which otherwise could damage the cover 11 if the exhaust pipe 16 is hot.
  • the fuel tank 4 is located at the back of the of the high-pressure washer 1, where the fuel tank is supplied with fuel through the fuel tank filler 15, which is sealed by a lid screwed in place.
  • a specific contact area 13 and the pair of wheels 12 will support the high-pressure washer 1 in its vertical position.
  • Another specific contact area 21, which will support the high-pressure washer 1 at rest in its horizontal position, is provided by an element extruding from the fuel tank 4. This extruding element will also fill the function of a hook for supporting winded external hoses or cables, such as a high-pressure cable and an electric cable for supplying the high-pressure washer 1 with electric power.
  • There is a cut-out 65 in the cover 11 that enables a fixedly mounted outlet 20 for the heated high-pressure liquid to be connected to an external high-pressure hose.
  • the handle 14 connected to the frame 2 will allow the high-pressure washer 1 to be easily shifted from a vertical to a horizontal position, or to be transported by way of its wheels 12.
  • the high-pressure washer 1 in Fig. 3 is in a moving state, in which it can be maneuvered by a person supporting the high-pressure washer by the handle 14.
  • FIG. 4 A cross-sectional view of a prior art fuel tank 4 for a high-pressure washer is illustrated in Fig. 4 .
  • the fuel tank 4 is oriented in a horizontal position. If the fuel tank were to be oriented in a vertical position the hose connection 41 would be at the upper end of the fuel tank 4.
  • the fuel tank 4 is by the hose connection 41 coupled to a ventilation hose 38 having an outer opening 40 at its distal end, which enables ventilation of the fuel tank 4 when it is oriented in its vertical position.
  • a residual space 39 may be defined by the wall of the tank 4 and a surface 37 of the fuel 36.
  • Gas may get trapped in the residual space 39, which upon expansion due to an increase in the temperature would press fuel 36 out through the ventilation hose 41.
  • This leakage may be an inconvenience as the fumes of the fuel 36 can have an unpleasant smell, or can even be hazardous to inhale.
  • the fuel 36 is also flammable and a leakage may therefore increase the risk of accidents involving fire.
  • a cross-sectional view a preferred embodiment of a fuel tank for a high - pressure washer is illustrated.
  • the tank 4 is similar to that shown in Fig. 4 , but provided with a first hose connection 43 and second hose connection 42.
  • a first ventilation hose 45 is coupled to the first hose connection 43
  • a second ventilation hose 44 is coupled to the first hose connection 42.
  • the two hoses are in their other ends coupled to an outer hose connection 46, which is also coupled to an outer ventilation hose 47 having an ventilation opening 48.
  • a second residual space 39 is defined by the wall of the tank 4 and the surface 37 of the fuel 36. Gas in the second residual space 39 will upon expansion be ventilated through the second ventilation hose 44 and the outer ventilation hose 47 to the ambient atmosphere. This will prevent the temperature induced leakage of fuel discussed in relation to Fig. 4 .
  • the outer hose connection 46 is, when the fuel tank 4 is in its horizontal position, located above the highest point 60 of the fuel tank 4, which in this case coincides with the second hose connection 42. If a sufficient amount of fuel 36 is supplied to the fuel tank 4, some amount of fuel may be contained within the first ventilation hose when the fuel tank is in its horizontal position. However, if the amount of fuel 36 supplied to the fuel tank 4 is such that the fuel surface 37 reaches the second hose connection 42, the fuel contained within the first ventilation hose 45 will not reach the outer hose connection 46, which would otherwise prevent ventilation of gas contained within the second residual space 52.
  • a rocking motion of the fuel tank 4 may cause the fuel 36 to be pressed out through one of the hose connections 42 and 43.
  • the fuel pressed through the first ventilation hose will enter the second ventilation hose, and vice versa, instead of being pressed out through the outer ventilation hose 47.
  • leakage of fuel 36 due to rocking motions of the fuel tank 4 is prevented by the presently preferred embodiment.
  • a cross-sectional view a preferred embodiment of the fuel tank in its vertical position is shown in Fig. 6 , where the most of the indexing of the elements and features is the same as in Fig. 5 .
  • a first residual space 49 is defined by the wall of the tank 4 and the surface 37 of the fuel 36. Gas in the first residual space 49 will upon expansion be ventilated through the first ventilation hose 45 and the outer ventilation hose 47 to the ambient atmosphere. This will prevent the temperature induced leakage of fuel discussed above when the fuel tank is oriented in its vertical position.
  • the outer hose connection 46 is locate below the first hose connection 43, while the opening 48 of the outer ventilation hose 47 is located above the highest point 58 of the fuel tank 4, which means that when the fuel tank is filled close to its highest point 58, the placing of the outer hose connection will cause gas to be trapped in the first residual space. Therefore, the gas may upon expansion cause liquid fuel 36 to leak from the tank 4. In alternative embodiment, this may be avoided simply shifting the outer hose connection 46 so that it is located higher than the first hose connection.
  • the second ventilation hose 44 may, in a particular embodiment, be of a transparent material. This will allow the second ventilation hose 44 to be used as a fuel level indicator as the fuel surface 37 inside the tank 4 will be on the same level as in the in the second ventilation hose.
  • Fig. 7 illustrates a presently preferred embodiment of a fuel tank 4 for a high-pressure washer seen from the backside 62 which faces the rest of the high-pressure washer when mounted and in a vertical position.
  • the fuel tank 4 has a fuel tank filler 15, which is sealable with a screw lid 61.
  • the outer hose connection 46 has the form of a T-junction, where the first ventilation hose 45 and one of the three legs of the T-junction constitutes the same element. This means that the outer hose connection 46 is connected directly to the first hose connection 43 by the same leg.
  • the first hose connection 43 is located at one of the highest points 58 of the fuel tank 4, while the second hose connection 42 is located at the lowest point 57.
  • the second ventilation hose 44 is coupled to the second hose connection 42 at one end, and to one of the legs of the outer hose connection 46 at the other end.
  • the remaining leg of the outer hose connection 46 is coupled to the outer ventilation hose 47, which terminates in an opening 48.
  • a fuel hose 55 is connected to the fuel tank 4 by a fuel hose connection 54 located at the lowest point 57 of the fuel tank 4. This way, fuel can be tapped from the fuel tank 4 through the opening 56 of the fuel hose 55.
  • the backside 62 of the fuel tank 4 has been profiled to closely fit the other components and features of the high-pressure washer, which gives a larger volume as compared to that of non-profiled fuel tank. Further, the backside 62 also has grooves into which the second ventilation hose and the fuel hose fit closely into.
  • a fuel level indicator 53 in the form of a transparent tube is connected to the fuel tank 4 at its lowest point 57.
  • the term "supported” is to be understood as if a second item is supported by a first item, and a third item is supported by the same first item, then the third item may be supported by the second item, which in turn is supported by the first item. Additionally or alternatively, the second item may be supported by the third item, which in turn is supported by the first item.
  • the delivery unit and the control unit are supported by the frame; then the delivery unit and the control unit are individually supported by the frame, or the control unit is supported by the delivery unit, which in turn is supported by the frame; or the delivery unit is supported by the control unit, which in turn is supported by the frame.
  • the prepositions "above” and “below” are to be understood as corresponding to a displacement having vertical component and a horizontal component, where the latter component may be infinitesimal.
  • the term “supported” is to be understood as if a second item is supported by a first item, and a third item is supported by the same first item, then the third item may be supported by the second item, which in turn is supported by the first item. Additionally or alternatively, the second item may be supported by the third item, which in turn is supported by the first item.
  • the fuel tank and the heater are supported by the frame; then the fuel tank and the heater are individually supported by the frame, or the fuel tank is supported by the heater, which in turn is supported by the frame; or the heater is supported by the fuel tank, which in turn is supported by the frame.
  • hose may be regarded as a device suitable for conveying a liquid or a gas from one location to another location.
  • the hose may be elongated and the shape and/or the size of the cross section of the hose may vary along its length.
  • the hose may be of a flexible as well as an inflexible material. Synonyms for hose may be pipe, pipeline, cylinder, conduit, channel, or tube.

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  • Feeding And Controlling Fuel (AREA)

Claims (11)

  1. Ein Hochdruckreiniger (1) zur Erzeugung einer Flüssigkeit, wo der Hochdruckreiniger (1) in einer ersten und einer zweiten Position eingestellt werden kann, und wo der Hochdruckreiniger folgendes umfasst:
    (a) ein Gehäuse (2),
    (b) einen durch das Gehäuse (2) unterstützten Brenner (7) zur Erzeugung von Erwärmung für die Flüssigkeit durch Brennen,
    (c) einen durch das Gehäuse (2) unterstützten Brennstofftank (4) mit einer Innenseite und einer Aussenseite, für die Aufbewahrung von einem Brennstoff (36) für den Brenner (7), wo der Brennstofftank (4) eine erste Schlauchverbindung (43) und eine zweite Schlauchverbindung (42) hat,
    (d) eine äussere Schlauchverbindung (46), die auf der Aussenseite des Brennstofftanks angeordnet ist,
    (e) einen ersten Belüftungsschlauch (45), der mit der ersten Schlauchverbindung (43) und der äusseren Schlauchverbindung (46) verbunden ist,
    (f) einen zweiten Belüftungsschlauch (44), der mit der zweiten Schlauchverbindung (42) und der äusseren Schlauchverbindung (46) verbunden ist, und
    (g) einen äusseren Belüftungsschlauch (47), der mit der äusseren Schlauchverbindung (46) verbunden ist und eine äussere Öffnung (48) an die umgebende Luft hat,
    wo eine Menge des in den Brennstofftank (4) gefüllten Brennstoffs (36) eine erste Brennstoffebene (37) ausmacht, die sich auf der inneren Seite des Brennstofftanks befindet, wenn der Hochdruckreiniger (1) in der ersten Position eingestellt ist, und eine zweite Brennstoffebene (37) die sich auf der inneren Seite des Brennstofftanks befindet, wenn der Hochdruckreiniger (1) in der zweiten Position eingestellt ist, worin:
    der Brennstofftank (4) in Verbindung mit der Brennstoffmenge (36) einen ersten verbleibenden Raum (49) im Brennstofftank (4) und über der ersten Brennstoffebene (37) definiert, wenn der Hochdruckreiniger (1) in der ersten Position eingestellt ist,
    der Brennstofftank (4) in Verbindung mit der Brennstoffmenge (36) einen zweiten verbleibenden Raum (52) im Brennstofftank (4) und über der zweiten Brennstoffebene (37) definiert, wenn der Hochdruckreiniger (1) in der zweiten Position eingestellt ist,
    der erste verbleibende Raum (49) eine erste Menge von Gas enthält,
    der zweite verbleibende Raum (52) eine zweite Menge von Gas enthält;
    die ersten (43), zweiten (42) und äusseren (46) Schlauchverbindungen und die ersten (45), zweiten (44) und äusseren (47) Belüftungsschläuche so konstruiert und
    so angeordnet sind, dass:
    die erste Menge Gas nach Expansion durch den ersten Belüftungsschlauch (45) und den äusseren Belüftungsschlauch (47) in die umgebende Luft ventiliert wird, und
    die zweite Menge Gas nach Expansion durch den zweiten Belüftungsschlauch (44) und den äusseren Belüftungsschlauch (47) in die umgebende Luft ventiliert wird.
  2. Ein Hochdruckreiniger (1) nach Anspruch 1, wo die erste Menge Gas nach Expansion auch durch den zweiten Belüftungsschlauch (44) und den äusseren Belüftungsschlauch (47) in die umgebende Luft ventiliert wird, und/oder die zweite Menge Gas nach Expansion auch durch den ersten Belüftungsschlauch (45) und den äusseren Belüftungsschlauch (47) in die umgebende Luft ventiliert wird.
  3. Ein Hochdruckreiniger (1) nach einem der Ansprüche 1 bis 2, wo die äussere Schlauchverbindung (46) über der ersten Schlauchverbindung (43) angeordnet ist, wenn der Hochdruckreiniger (1) in der ersten Position eingestellt ist; und/oder die äussere Schlauchverbindung (46) über der zweiten Schlauchverbindung (42) angeordnet ist, wenn der Hochdruckreiniger (1) in der zweiten Position eingestellt ist.
  4. Ein Hochdruckreiniger (1) nach einem der Ansprüche 1 bis 3, wo der zweiten Belüftungsschlauch (44) vor der Kupplung mit der äusseren Schlauchverbindung (46) einen Punkt über der ersten Schlauchverbindung (43) erreicht, wenn der Hochdruckreiniger (1) in der ersten Position eingestellt ist, und/oder der zweiten Belüftungsschlauch (44) vor der Kupplung mit der äusseren Schlauchverbindung (46) einen Punkt über der zweiten Schlauchverbindung (42) erreicht, wenn der Hochdruckreiniger (1) in der zweiten Position eingestellt ist.
  5. Ein Hochdruckreiniger (1) nach einem der Ansprüche 1 bis 4, der ausserdem
    (h) eine Brennstofftankfüllvorrichtung (15), die das Einfüllen vom Brennstoff (36) in den Brennstofftank (4) ermöglicht,
    umfasst,
    wo eine maximale Brennstoffmenge als die grösste Brennstoffmenge (36), die durch Anwendung der Brennstofftankfüllvorrichtung (15) in den Brennstofftank (4) erbracht werden kann, definiert ist; wo die in den Brennstofftank (4) erbrachte maximale Brennstoffmenge eine erste maximale Brennstoffebene in dem Brennstofftank definiert, wenn der Hochdruckreiniger (1) in der ersten Position eingestellt ist, und eine zweite maximale Brennstoffebene in dem Brennstofftank (4), wenn der Hochdruckreiniger (1) in der zweiten Position eingestellt ist; und/oder die erste Schlauchverbindung (43) sich über der ersten maximalen Brennstoffebene befindet, wenn der Hochdruckreiniger (1) in der ersten Position eingestellt ist, und die zweite Schlauchverbindung (42) sich über der zweiten maximalen Brennstoffebene befindet, wenn der Hochdruckreiniger (1) in der zweiten Position eingestellt ist.
  6. Ein Hochdruckreiniger (1) nach einem der Ansprüche 1 bis 5, wo der Brennstofftank (4) ein erstes oberes Ende (58) und ein erstes unteres Ende definiert, wenn der Hochdruckreiniger (1) in der ersten Position eingestellt ist, wo die erste Schlauchverbindung (43) sich am ersten oberen Ende (58) befindet, und die zweite Schlauchverbindung (42) sich am ersten unteren Ende befindet, und/oder der Brennstofftank (4) ein zweites oberes Ende (60) und ein zweites unteres Ende definiert, wenn der Hochdruckreiniger (1) in der zweiten Position eingestellt ist, wo die zweite Schlauchverbindung (42) sich am zweiten oberen Ende (60) befindet, und die erste Schlauchverbindung (43) sich am zweiten unteren Ende befindet.
  7. Ein Hochdruckreiniger (1) nach einem der Ansprüche 1 bis 6, wo der Hochdruckreiniger (1) ausserdem
    (i) eine durch das Gehäuse (2) unterstützte Pumpe (8) für die Zufuhr von der Flüssigkeit unter Druck, wo die Pumpe (8) ausserdem einen Motor (18) für den Betrieb der Pumpe umfasst,
    (j) eine Bedieneinheit (9), der ausserdem ein Bedienfeld (10) umfasst, und
    (k) eine Abdeckung (11) in Verbindung mit dem Gehäuse (2) zur Verhütung davon, dass Teile oder das Ganze von dem Brenner (3), dem Brennstofftank (4), dem ersten Belüftungsschlauch (45), dem zweiten Belüftungsschlauch (44), dem äusseren Belüftungsschlauch (47), der Brennstofftankfüllvorrichtung (15), der Pumpe (8), und/oder der Bedieneinheit (9) mit der Hand erreichbar sind,
    umfasst.
  8. Ein Hochdruckreiniger (1) nach einem der Ansprüche 1 bis 7, wo der Hochdruckreiniger (1) in einem ruhenden Zustand und einem bewegbaren Zustand sein kann, und wo der Hochdruckreiniger ausserdem:
    (I) einen spezifischen Kontaktpunkt oder Oberfläche (13, 21),
    (m) einen durch das Gehäuse (2) unterstützten Radsatz (12), und
    (n) einen Griff (14) der mit dem Gehäuse (2) verbunden ist und der sich vom Gehäuse (2) erstreckt,
    umfasst,
    wo der Hochdruckreiniger (1) auf einer ebenen Oberfläche in dem ruhenden Zustand durch den spezifischen Kontaktpunkt oder Oberfläche (13, 21) und den Radsatz (12) unterstützt wird, und der Hochdruckreiniger (1) in dem bewegbaren Zustand durch den Griff (14) und den Radsatz (12) unterstützt wird.
  9. Ein Hachdruckreiniger (1) nach Anspruch 8, wo der ruhende Zustand und die erste Position dieselbe Orientierung des Hochdruckreinigers bestimmen (1), und der Griff (14) sich in eine im Wesentlichen senkrechte Richtung erstreckt.
  10. Ein Hochdruckreiniger (1) nach einem der Ansprüche 1 bis 9, wo, wenn der Hochdruckreiniger (1) in entweder der ersten oder der zweiten Position eingestellt ist,
    der erste Belüftungsschlauch (45) einen durch den ersten Belüftungsschlauch (45) laufenden ersten Belüftungsweg festlegt, und wo der erste Endpunkt sich an der ersten Schlauchverbindung (43) befindet und der zweite Endpunkt sich an der äusseren Schlauchverbindung (46) befindet, so dass die Erdanziehungspotentialenergie einer Masse, die dem ersten Belüftungsweg von seinem ersten Endpunkt bis zu seinem zweiten Endpunkt folgt, in einer gleichbleibenden Weise zunimmt, und
    der zweite Belüftungsschlauch (44) einen durch den zweiten Belüftungsschlauch (44) laufenden zweiten Belüftungsweg festlegt, und wo der erste Endpunkt sich an der zweiten Schlauchverbindung (42) befindet und der zweite Endpunkt sich an der äusseren Schlauchverbindung (43) befindet, so dass die Erdanziehungspotentialenergie einer Masse, die dem zweiten Belüftungsweg von seinem ersten Endpunkt bis zu seinem zweiten Endpunkt folgt, in einer gleichbleibenden Weise zunimmt.
  11. Ein Hochdruckreiniger (1) nach einem der Ansprüche 1 bis 10, wo, wenn der Hochdruckreiniger (1) in entweder der ersten oder der zweiten Position eingestellt ist,
    der äussere Belüftungsschlauch (47) einen durch den äusseren Belüftungsschlauch (47) laufenden äusseren Belüftungsweg festlegt, und wo der erste Endpunkt sich an der äusseren Schlauchverbindung (46) befindet und der zweite Endpunkt sich an der äusseren Öffnung (48) an die umgebende Luft befindet, so dass die Erdanziehungspotentialenergie einer Masse, die dem äusseren Belüftungsweg von seinem ersten Endpunkt bis zu seinem zweiten Endpunkt folgt, in einer gleichbleibenden Weise zunimmt.
EP08013001A 2008-07-18 2008-07-18 Kraftstofftankbelüftung an einem Hochdruckreiniger Not-in-force EP2145699B1 (de)

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EP2145699B1 true EP2145699B1 (de) 2012-09-12

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KR20130116339A (ko) * 2011-03-07 2013-10-23 알프레드 캐르혀 게엠베하 운트 컴파니. 카게 가열가능한 고압 클리닝 장치
US11186007B2 (en) 2012-10-31 2021-11-30 Husqvarna Ab Oil reservoir for chainsaw with pressure releasing valve
JP6345746B2 (ja) * 2016-10-31 2018-06-20 成田空港給油施設株式会社 燃料保管用タンクの洗浄廃液処理方法及びそれに用いる可搬式油水分離装置

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4046321A (en) * 1975-04-03 1977-09-06 Kem-O-Kleen, Inc. High pressure spray cleaning head
DE3823320A1 (de) * 1988-07-09 1990-01-11 Suttner Gmbh & Co Kg Hochdruckreinigungseinrichtung
DE19739935C2 (de) * 1997-09-11 2000-07-27 Wap Reinigungssysteme Hochdruck-Reinigungsgerät mit Zusatzmittel-Dosiervorrichtung
AT504272B1 (de) * 2006-05-29 2008-10-15 Ertl Gmbh Reinigungstechnik Mobiles reinigungsgerät

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