• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a cleaning means adaptable to a fuel tank for cleaning the inside of the fuel tank from a first inspection opening formed in said tank, the cleaning means comprising a fuel recirculation device having a tubular device for supplying fuel to the tank and a tubular device for draining fuel from the tank through said inspection port. The cleaning means further comprises a tubular air supply device for supplying pressurized air to the tank as an air pulse from the inspection opening formed in the tank.
    公开号:FI20207083A1
    申请号:FI20207083
    申请日:2020-05-14
    公开日:2021-10-15
    发明作者:Harri Hvitsjö
    申请人:Hvitsjoe Harri；
    IPC主号:
    专利说明:

    The invention relates to a cleaning means suitable for cleaning the inside of a fuel tank according to the preamble of claim 1. The invention also relates to a fuel tank for connection with - Methods for cleaning a fuel tank are known in the art, in which fuel is recycled to the outside of the tank and microbial growth is removed from the fuel transferred outside the tank by filtration, and then the cleaned fuel is recycled back to the tank. The cleaning process is easily incomplete here, because there are often bulkheads and other obstacles in the fuel tank, which makes it difficult to clean the dirt left in the walls of the tank simply by recycling the fuel. In addition, the cleaning result can be difficult to verify due to the bulkheads in the fuel tank and the location of the fuel connection.
    In another method, the fuel tank / reservoir is removed from the vehicle to remove fuel and clean the internal surfaces of the fuel, but this method has the disadvantage of its slowness.
    The invention is intended to eliminate or at least alleviate the problems encountered in the prior art described above. S The main object of the invention is to provide a cleaning means with which the fuel tank can be cleaned quickly in situ.
    LO = 25 The cleaning means according to claim 1 achieves the above-mentioned T objectives. = * More specifically, the invention relates to a cleaning means adapted to a fuel tank according to claim 1 for cleaning the inside S of a fuel tank from a first inspection opening formed in said fuel tank, the cleaning means comprising a fuel D a tubular drain to drain fuel D from the fuel tank
    through the first inspection port and a filter to filter the fuel. The cleaning means further comprises a tubular air supply device for compressed air to feed to the fuel tank as an air pulse from the first inspection port formed in the fuel tank.
    In a preferred embodiment of the invention, the cleaning means comprises a cleaning unit comprising at least a tubular fuel supply unit and a tubular fuel discharge unit and an air supply unit which can be fitted inside the fuel tank.
    The invention also relates to a fuel tank in connection with a vehicle, to which is provided a cleaning means for cleaning the inside of the fuel tank from a first inspection opening formed in said fuel tank. The fuel tank has at least one intermediate bulkhead which divides the tank into two or more sections, each section bounded by the bulkhead and the inner walls of the tank and having at least the first two inspection openings, each of which has a direct fluid connection to the bulkhead of the tank. The invention is based, firstly, on the fact that one or more inspection openings are made in situ in the fuel tank connected to the vehicle, i.e. without removing the fuel tank from the vehicle. This makes it easy to check the cleaning result of the fuel tank.
    - Secondly, the invention is based on the fact that the fuel tank is cleaned with a cleaning means capable of recycling and cleaning the fuel in the fuel tank in order to filter and remove microorganisms. In addition, the cleaning means includes an air supply device capable of producing short air pulses for cleaning the fuel tank. Preferably, the air supply device is adapted to provide compressed air pulses inside the fuel tank, wherein the duration of each pulse is 1 to 10 seconds, preferably 2 to 5 seconds, and the air pressure of each re-pulse is 5 to 15 bar and preferably about 10 bar. Successive compressed air + pulses can also consist of a continuous compressed air supply, where the air pressure z varies between 1 and 15 bar.
    30 - In a preferred embodiment of the invention, the cleaning means comprises a cleaning unit comprising at least a tubular fuel supply unit and a tubular fuel removal unit and an air supply unit which can be fitted inside the fuel tank.
    In another preferred embodiment of the invention, a threaded rod is connected to the plate to be fitted in the inspection opening during the manufacture of the inspection opening lid. This prevents parts of the deck hatch from falling inside the fuel tank. The invention and its advantages will be described in more detail below with reference to the accompanying drawings. Figure 1 shows a schematic longitudinal sectional view of a cleaning unit of a cleaning device according to the invention mounted on a fuel tank. Fig. 2 also shows a schematic sectional view of a cleaning means according to the invention. 41, the cleaning means 1 comprising a fuel D recirculation apparatus 3 having a tubular supply device 31 for supplying fuel D to the fuel tank 1 and a tubular discharge device 33 for discharging fuel D from the fuel tank 7 through said first inspection opening 4; 41 and a filter 35 for fuel (D) to filter. The cleaning means 1 further comprises a tubular air supply device 2 - compressed air for supplying to the fuel tank 7 as an air pulse from the first inspection port 4:41 formed in the fuel tank 7. Figure 1 shows. a cleaning unit of the cleaning means 1 according to the invention, comprising at least a tubular fuel supply unit 30a and a tubular fuel discharge unit 30b and an air supply unit 35 which can be fitted inside the fuel tank.
    O + The invention further comprises a fuel tank 7 in connection with the vehicle, to which a cleaning means 2 for cleaning the inside of the fuel tank can be fitted - from a first inspection opening 4:41 formed in said fuel tank. 2 The fuel tank 7 has at least one intermediate bulkhead 71 which divides the fuel tank 7 = 30 into two or more parts, each part bounded by the intermediate bulkhead 71 and the inner walls of the tank, and the tank is provided with at least two first inspection openings 4:41, each of which can be formed straight. fluid connection to the part of the fuel tank divided by the bulkhead.
    Only some embodiments of the invention as defined in the claims have been described in the above embodiments, and it will be apparent to one skilled in the art that the invention may be practiced in many other ways. O OF O OF
    LÖ <Q <
    I a a 0 00 O OF O OF O OF
    Reference number list (main parts) Cleaning means 1 cleaning unit 10 5 Air supply device 2 without supply head 2a shut-off valve 21 without air supply unit 35 Fuel recirculation device 3 recirculation unit 30 restrictor 301 flange 302 supply device 31 supply unit 30a connector 301 outlet device 33 outlet unit 30b filter 35b
    SS 20 flow meter 39 3 recirculation unit 30 2 Inspection opening 4 E first inspection opening 41 = second inspection opening 42 ä 25 cover 45 Suction device 5 suction pipe 51 suction head 51a venturi 6 degassing device 61 Fuel tank 7 intermediate bulkhead 71 inside 72 Power source (aggregate) 8 power line 81.8 distributor valve 91 Fuel D slime I Compressed air pulse P1 Aperture diameter T
    N S 20 OF
    O <Q <
    I a a 0 00 O OF O OF O OF
    权利要求:
    Claims (19)
    [1]
    A cleaning tool (1) adapted for a fuel tank (7) for cleaning an inside (72) of the fuel tank (7) through a first inspection opening (4; 41) formed in said fuel tank, the cleaning tool (1) comprising a fuel (D) circulating equipment (3) having a circular feed device (31) for feeding the fuel (D) into the fuel tank (1) and a tubular diverter (33) for diverting the fuel (D) from the fuel tank (7) ) through said first inspection opening (4; 41) and a filter (35) for filtering the fuel (D), characterized in that the cleaning tool (1) also comprises - a tubular air supply device (2) for supplying pressurized air (I) in the fuel tank (7) as an air pulse through the inspection opening (4; 41) formed in the fuel tank (7) and - a tubular suction device (5) for extracting gases from the tank through the inspection opening (4) formed in the tank, to which tubular suction device (5) ) hear one with a suction head ( 51a) provided suction pipe (51) which can be led to the inside (72) of the fuel tank (7) through the inspection opening (4) formed in the fuel tank (7) and a venturi device (6), such as an ejector, for sucking gas from the inside ( 72) of the fuel tank (7) through said suction pipe (51) and its suction head (51a).
    [2]
    Cleaning tool (1) according to claim 1, characterized in that the air supply device (2) is adapted to produce successive compressed air pulses on the inside (72) of the fuel tank (7), wherein the successive compressed air pulses are either formed by continuous compressed air supply in which the air pressure varies and 15 bar or of discontinuous compressed air supply in which the air pressure during each compressed air pulse is 5 + 15 bar, preferably 10 bar and the duration of the compressed air pulse is 1-180 seconds, preferably 1-10 seconds.
    [3]
    Cleaning tool (1) according to claim 1, characterized in that the fuel tank (7) comprises at least one partition wall (71) and that in the fuel tank (7) at least one inspection opening (4) has been formed from which a direct liquid connection to the fuel tank part delimited by the partition (71).
    [4]
    Cleaning tool (1) according to claim 1, characterized in that it comprises a flow meter (39) for measuring the volume flow of the fuel (D) circulated / fed into the fuel tank (7) and for measuring the total amount of the circulated fuel.
    [5]
    Cleaning tool (1) according to claim 1, characterized in that a water separator (37) is arranged in connection with the filter (35).
    [6]
    Cleaning tool (1) according to claim 1, characterized in that the air supply device (2) comprises a device which provides compressed air, such as a compressor (9), and a valve (21) for interrupting the supply of compressed air.
    [7]
    Cleaning tool (1) according to claim 1, characterized in that the cleaning tool (1) has a cleaning unit comprising at least one fuel-shaped tubular feed unit (30a) which is adaptable on the inside of the fuel tank and a fuel-shaped tubular drainage unit (30b) and an air supply unit.
    [8]
    Fuel tank (7) in connection with a vehicle, on which fuel tank (7) it is possible to adapt the cleaning tool (7) defined in any of claims 1-7 to clean the inside (72) of the fuel tank (7) through the first and / or second inspection opening (4; 41, 42) formed in said fuel tank (7), characterized in that the fuel tank (7) comprises at least one partition (71) dividing the tank into two or more parts in which each part is delimited by the partition wall (71) and the inner walls of the tank and at least the first two inspection openings have been formed in the tank from both of which a direct liquid connection can be formed to the part of the fuel tank delimited by the wall.
    [9]
    Fuel tank (7) according to claim 8, characterized in that at least one other inspection opening, such as a filling opening (4; 42), is also arranged in the fuel tank (7) for guiding the suction device (5) to the inside (72) of the fuel tank (72). 7).
    [10]
    Fuel tank (7) according to claim 9, characterized in that the first inspection opening (4; 41) and the second inspection opening (4; 42) are either in the same place or in different places of the fuel tank (7).
    [11]
    Fuel tank (7) according to claim 9, characterized in that the inspection opening - (4) preferably - comprises a = rounded inspection opening and a lid (45) which is adaptable to this inspection opening.
    [12]
    Fuel tank (7) according to one of Claims 8 to 11, characterized in that the cover (45) is made of acid-resistant and stainless steel of the same material as or other material than the fuel tank (7).
    [13]
    Fuel tank (7) according to one of the preceding claims 8 to 12, characterized in that the inspection opening (4) is formed in situ, without detaching the fuel tank (7) from the vehicle.
    [14]
    Fuel tank (7) according to Claim 13, characterized in that a threaded rod is coupled to a disc which can be adapted for the inspection opening (4) during the manufacture of a hatch for the lid of the inspection opening (4).
    [15]
    Fuel tank (7) according to one of the preceding claims 8 to 14, characterized in that the partition wall (71) constitutes a vertical plate arranged in the fuel tank in the width direction and which is fixed in inner walls of the fuel tank (7).
    [16]
    Fuel tank (7) according to claim 15, characterized in that openings are formed in the partition wall (71) which allow the transition of the fuel (D) from a part of the fuel tank arranged on the first side of the partition wall (71) to a part arranged on the second side of the partition wall. of the fuel tank (7).
    [17]
    Fuel tank (7) according to one of Claims 8 to 16, characterized in that the cleaning unit (10) of the cleaning tool (1), the air supply unit and a circulation unit have been adapted to the inside of the fuel tank.
    (30a) for fuel, the upper end of the cleaning unit (10) also having a restrictor (301), such as a rubber flange, which rests against the outer surface of the fuel tank (7).
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    同族专利:
    公开号 | 公开日
    FI129248B|2021-10-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    2020-05-27| PC| Transfer of assignment of patent|Owner name: DIESELBAR OY |
    2021-10-15| FG| Patent granted|Ref document number: 129248 Country of ref document: FI Kind code of ref document: B |
    优先权:
    申请号 | 申请日 | 专利标题
    FI20207083A|FI129248B|2020-05-14|2020-05-14|Cleaning device adaptable to a fuel tank|FI20207083A| FI129248B|2020-05-14|2020-05-14|Cleaning device adaptable to a fuel tank|
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