EP3568261B1 - Sonde de projection conçue pour introduire une matière de grenaillage dans une cavité - Google Patents

Sonde de projection conçue pour introduire une matière de grenaillage dans une cavité Download PDF

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Publication number
EP3568261B1
EP3568261B1 EP18700211.8A EP18700211A EP3568261B1 EP 3568261 B1 EP3568261 B1 EP 3568261B1 EP 18700211 A EP18700211 A EP 18700211A EP 3568261 B1 EP3568261 B1 EP 3568261B1
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EP
European Patent Office
Prior art keywords
blasting
probe
blasting material
blast tube
nozzle
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
Application number
EP18700211.8A
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German (de)
English (en)
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EP3568261A1 (fr
Inventor
Alfons Urban
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.)
Tunap GmbH and Co KG
Original Assignee
Tunap GmbH and Co KG
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Publication date
Application filed by Tunap GmbH and Co KG filed Critical Tunap GmbH and Co KG
Publication of EP3568261A1 publication Critical patent/EP3568261A1/fr
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Publication of EP3568261B1 publication Critical patent/EP3568261B1/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B77/00—Component parts, details or accessories, not otherwise provided for
    • F02B77/04—Cleaning of, preventing corrosion or erosion in, or preventing unwanted deposits in, combustion engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C3/00—Abrasive blasting machines or devices; Plants
    • B24C3/32—Abrasive blasting machines or devices; Plants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks
    • B24C3/325—Abrasive blasting machines or devices; Plants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks for internal surfaces, e.g. of tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C5/00—Devices or accessories for generating abrasive blasts
    • B24C5/02—Blast guns, e.g. for generating high velocity abrasive fluid jets for cutting materials
    • B24C5/04—Nozzles therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C5/00—Devices or accessories for generating abrasive blasts
    • B24C5/06—Impeller wheels; Rotor blades therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2800/00—Methods of operation using a variable valve timing mechanism
    • F01L2800/17—Maintenance; Servicing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M65/00—Testing fuel-injection apparatus, e.g. testing injection timing ; Cleaning of fuel-injection apparatus
    • F02M65/007—Cleaning

Definitions

  • the present invention relates to a blasting probe according to the preamble of independent claim 1 for introducing a granular blasting material into a cavity, in particular for cleaning it, as well as a device for cleaning cavities which is provided with a blasting probe according to the invention.
  • a beam probe is from the document U.S. 2,739,424 known.
  • a device for cleaning coked cavities, in particular inlet ducts and valves of an internal combustion engine which has a first probe which is provided at its front end with one or more nozzles for injecting an alkaline liquid into a cavity to be cleaned and which its other end is connected to the pressure side of a pump, the suction side of which can be supplied with an alkaline liquid.
  • the alkaline liquid to be introduced into the cavity to be cleaned for example into an inlet channel of a valve of an internal combustion engine, can be formed from a mixture consisting of a solvent and an alkali in solid form. When using such an alkaline liquid, it is possible to inject it into the cavity to be cleaned through nozzles arranged radially on the probe.
  • a cleaning jet probe has a powder jet pipe in addition to a liquid line, through which a blasting material is introduced into the cavity to be cleaned by means of compressed air in such a way that the granular blasting material is similar like sandblasting removes dirt from the walls of the cavity to be cleaned. Since, at the same time as the granular cleaning powder, a solvent is introduced into the cavity through a liquid line in the cleaning jet probe in order to form a cleaning liquid that removes the dirt, the abrasive effect of the cleaning powder serves to prepare and support the cleaning process by means of cleaning liquid.
  • the cleaning of the cavity is to be carried out in a two-step process, which is the case when cleaning the inlet channels and valves of an internal combustion engine allows easier handling in a workshop with the engine installed, it is difficult, however, to direct the cleaning powder jet emerging from the axial outlet of the powder jet tube onto all areas of the walls of the cavity to be cleaned.
  • One possibility of controlling the direction of the cleaning powder jet is to bend the exit area of the powder jet tube so that the powder jet also has a radial component in addition to an axial component.
  • the powder jet tube 360 In order to be able to apply the cleaning powder completely in the circumferential direction to a cylindrical cavity in this way, it is necessary, however, to be able to rotate the powder jet tube 360 around its longitudinal axis, which is practically impossible in narrow inlet channels.
  • the EP 2 848 367 A1 shows a jet nozzle unit with a cylindrical jet nozzle tube, which can be connected with its rear end to a jet center feed and which has a nozzle outlet opening at its front end in the jet direction, to which a conical deflection device is assigned.
  • the US 2010/0212157 A1 relates to a method for peening surfaces and describes a blasting material nozzle which has a radial nozzle opening at its front end to which a flat baffle plate is assigned.
  • the rear end of the blasting material nozzle is connected to a blasting material guide piece that can be connected to a blasting material supply line.
  • the JP 2002-239909 A describes a nozzle device for blasting abrasive grains with compressed gas onto the inner surface of a medium-sized to small machine part.
  • the nozzle device comprises a tubular nozzle body, at the outlet end of which a tubular assembly part with an impact body is attached, the flat impact surface of which is arranged obliquely to the longitudinal axis of the nozzle body and is assigned to a radial nozzle opening to provide granular blasting material in a cavity with which it is possible to ensure, even with narrow cavities, that all the walls of the cavity with the one used for its cleaning granular blasting material can be applied in order to completely remove the dirt.
  • a blasting probe for introducing a granular blasting material into a cavity for cleaning it has a blasting tube, the outlet end of which is assigned a blasting nozzle which has a radial outlet opening, which is assigned a baffle which is arranged obliquely to its opening surface and obliquely to the longitudinal axis of the blasting tube .
  • a jet nozzle according to the invention at the outlet end of the jet probe thus provides an angled jet of shot which can be guided over the entire circumferential area by simply rotating the jet pipe about its longitudinal axis. Since the beam tube of the beam probe does not have any bends, it can be completely rotated 360 ° even in the narrowest cavities into which it can just be inserted, so that the walls of the narrowest cavities, in particular the inlet channels of inlet valves of internal combustion engines, can be reliably filled with blasting material are applied and can therefore also be cleaned properly.
  • an angle between the impact surface and the longitudinal axis of the beam pipe is between 50 ° and 20 °, preferably between 40 ° and 30 °, in particular about 35 °.
  • the special angle setting of the baffle surface relative to the longitudinal axis of the jet pipe i.e. the direction of transport of the blasting material through the jet pipe, enables that the stream of blasting material has both a radial component and an axial component, so that surfaces lying next to as well as in front of the tip of the blasting probe can be exposed to granular blasting material.
  • the impact surface In order to ensure that the blasting material does not hit the edges of the outlet opening, it is more advantageous for the impact surface to be concave.
  • the outlet opening is formed by a long pipe extending in the longitudinal direction of the jet pipe, the length of the baffle surface being approximately one third to four fifths of the length of the long hole when viewed in the longitudinal direction of the jet pipe.
  • the jet nozzle has several, preferably three, radial outlet openings which are evenly distributed in the circumferential direction of the jet pipe.
  • a cleaning stream of blasting material is obtained, which can be guided through a cylindrical cavity like the inlet channel of a valve in internal combustion engines, essentially similar to a bottle brush.
  • the jet probe only needs to be rotated a little more than 120 ° around its longitudinal axis in order to apply blasting material to 360 ° of the surrounding walls.
  • the jet nozzle according to the invention has a nozzle body which has a bore extending in the longitudinal direction of the jet pipe which forms a blasting material channel which opens into the radial outlet openings and whose end in the direction of the jet is formed by the baffles, which form a roof-shaped or pyramid-shaped deflector form.
  • the manufacture of the jet probe according to the invention can be simplified. In particular, this makes it possible to produce beam probes with different lengths in a simple manner.
  • the blasting material channel in the nozzle body has a larger diameter than the blasting material flow emerging from the blasting tube, so that the effect of the blasting material flow on the inner walls of the bore in the nozzle body is reduced, thereby increasing the service life of the nozzle body is increased significantly.
  • the nozzle body in particular the deflecting body, is hardened.
  • the blasting probe according to the invention is used with a device for cleaning cavities, which has a blasting material supply line which can be connected to the rear end of the blasting probe, the input end of which is connected to a device which is connected to a blasting material source and which is connected to a compressed gas line a compressed gas source can be connected in order to mix granular blasting material with a compressed gas.
  • a device for cleaning cavities can be conveniently used in the workshop, since compressed air is usually available there as compressed gas for a variety of applications, which can then be used together with cleaning powder as granular blasting material to remove cavities, especially narrow coked cavities in internal combustion engines Removal to clean.
  • Figure 1 shows a device for cleaning cavities with a blasting probe 10, which is connected at its rear end to a blasting material supply line 11, the input end of which is connected to a mixing device 12, in the blasting material with compressed gas, z. B. compressed air is mixed so that the blasting probe 10 can be supplied with a stream of blasting material via the blasting material supply line 11.
  • the mixing device 12 is on the one hand connected via a line 14 to a blasting material container 15 'serving as a blasting material source 15 and on the other hand can be connected via a pressurized gas line 16 to a pressurized gas source not shown in detail.
  • the compressed gas line 16 is provided with a connection coupling 17 which can be connected, for example, to the compressed air system of a workshop.
  • the blasting material for. B. sucked in a cleaning powder in the mixing device 12 by the compressed air flowing through this, for example in the manner of a siphon or a water jet pump and mixed with this, so that the compressed air together with the granular blasting material which it transports are fed to the blasting probe 10 as a blasting material stream 24.
  • FIG. 2 An example of a cavity to be cleaned is in Figure 2 an intake port 18 of an intake valve 19 in a cylinder head 20 is shown.
  • the inlet valve 19 guided by means of a valve guide 21 in the cylinder head 20 is used to close and open an outlet opening 22 of the inlet channel 18, which at the same time forms an inlet opening of a cylinder space (not shown) in the cylinder block 23.
  • the inlet channel 18 and the inlet valve 19 tend to coke, so that these inlet channels 18 have to be cleaned from time to time depending on the type of operation of the internal combustion engine.
  • a cleaning powder is blasted as a granular blasting material against the walls of the inlet channel 18 and the exposed surfaces of the inlet valve 19 that in Figure 2 Soiling, not shown in detail, is removed from the surfaces to be cleaned by the cleaning powder in the manner of sandblasting.
  • the cleaning powder is introduced into the interior of the inlet channel 18 as a jet stream 24 through a jet channel 25 of the jet probe 10 and directed against the inner walls of the cavity by a jet nozzle 27 provided at the front end of the jet probe 10.
  • the blasting probe 10 If the blasting probe 10 is rotated about its longitudinal axis, the blasting material flow exiting with a radial component is pivoted accordingly and the cleaning powder of the blasting material flow 24 can apply and clean all the walls of the cavity to be cleaned, i.e. the inner walls of the inlet channel and the surfaces of the inlet valve 19.
  • the beam probe 10 shown has a beam tube 28, at the front of which in Figure 3 right end the jet nozzle 27 is provided.
  • the jet nozzle 27 comprises a radial outlet opening 29, which is preferably designed as an elongated hole, and a baffle surface 30, which is arranged obliquely to the longitudinal axis 31 of the jet pipe, as particularly well in FIG Figure 4 can be seen.
  • the angle a which the impact surface encloses with the longitudinal axis 31 of the jet pipe is in the illustrated embodiment 35 °. However, it can also be larger or smaller, depending on the direction in which the stream of blasting material is to be directed, which in turn depends on the geometry of the cavities to be cleaned.
  • the angle ⁇ is selected to be larger or smaller.
  • the angle ⁇ is preferably in the range between 50 ° and 20 °, in particular in the range between 40 ° and 30 °. In a jet probe tested in the laboratory, particularly good cleaning results were achieved in inlet channels of inlet valves in internal combustion engines at an angle ⁇ between the impact surface 30 and the longitudinal axis 31 of the jet pipe 28 of 35 °.
  • a cutting ring 32 is provided in the area of the end of the blasting tube 28 facing away from the blasting nozzle 27, which, together with a union nut 33, serves to screw the blasting material feed line securely to the blasting probe 10 in the connection area.
  • a jet nozzle 27 is placed on the right end of the jet pipe 28, which has a nozzle body 26 which has a bore 35 which extends in the longitudinal direction of the jet pipe 28 and which forms a jet material channel 36 which opens into radial outlet openings 29.
  • the jet pipe 28 is inserted into the bore 35 of the nozzle body 26 and is preferably welded to the nozzle body 26, in particular spot-welded. Since the diameter of the blasting material channel 35 is greater than the diameter of the blasting material channel 25 in the jet pipe 28, practically no blasting material hits the inner circumferential surface of the blasting material channel 35 in the nozzle body 26, whereby the wear is reduced.
  • the nozzle body 26 has three circumferentially evenly distributed outlet openings 29, each of which is assigned its own baffle surface 30.
  • the three baffle surfaces 30 thus form a conical or pyramidal deflecting body 37 which is supported by webs 38 between the outlet openings 29.
  • the baffle surfaces 30 are designed in such a way that no blasting material hits the webs 38.
  • the impact surfaces 30 can be concave for this purpose.
  • two or more outlet openings can also be provided circumferentially distributed. If, for example, two outlet openings located diametrically opposite one another are provided, the deflecting body formed by their associated baffle surfaces is roof-shaped. If more than three openings, i.e. four or five circumferentially evenly distributed outlet openings with corresponding baffles, are provided, the conical deflecting body 37 represents a square or pentagonal pyramid.
  • the deflecting body 37 In order to increase the wear resistance of the deflecting body 37, it is preferably hardened.
  • the outlet openings 29 in the jet nozzle 27 according to FIG Figure 5 are designed as elongated holes. How especially good in the Figures 3, 4 and 5 As can be seen, the length of the baffle surfaces 30 in the longitudinal direction of the jet pipe 28, i.e. the projection of the baffle surfaces 30 onto the longitudinal axis 31 of the jet pipe 28, is shorter than the length of the elongated hole forming the outlet opening 29. In particular, the length of the projection of the impact surface 30 onto the corresponding longitudinal axis 31 of the jet pipe 28 is approximately one third to four fifths of the length of the elongated hole forming the outlet opening 29.
  • FIGS 7A to 7C illustrate schematically the deflection of the stream of blasting material 24 at the baffle surface or surfaces 30 of the blasting nozzles 27.
  • the divergent flow of blasting material emerging from the outlet opening of the nozzle 27 24 ' has both radial and axial components, so that by rotating the blasting probe about its longitudinal axis, the exiting blasting material flow 24' can be pivoted through 360 °.
  • the blasting probe 10 makes it possible to apply cleaning powder as blasting material to all the walls of a cavity to be cleaned by simply shifting and rotating about its longitudinal axis, and thus to clean them.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Cleaning In General (AREA)
  • Nozzles (AREA)

Claims (8)

  1. Sonde de projection (10) pour introduire une matière à projeter granulaire dans une cavité, en particulier dans une cavité calaminée étroite, telle qu'un conduit d'admission (18) d'une soupape (19) d'un moteur à combustion, en particulier pour son nettoyage, comportant :
    - un tube de projection (28) dont une extrémité arrière peut être raccordée à une conduite d'alimentation en matière à projeter (11) et
    - une buse de projection (27) sur l'extrémité avant du tube de projection (28), qui comporte plusieurs, de préférence trois, ouvertures de sortie (29) pour la matière à projeter, radiales par rapport à l'axe longitudinal (31) du tube de projection (28), lesquelles ouvertures de sortie sont réparties uniformément dans une direction circonférentielle du tube de projection (28) et auxquelles sont respectivement associées une surface d'impact (30) agencée en oblique par rapport à l'axe longitudinal (31) du tube de projection (28),
    caractérisée en ce que la buse de projection (27) comporte un corps de buse (26) qui comporte un alésage (35) s'étendant dans une direction longitudinale du tube de projection (28), lequel alésage forme un conduit de matière à projeter (36) qui débouche dans les ouvertures de sortie radiales (29) et dont l'extrémité située dans la direction de projection est formée par les surfaces d'impact (30) qui forment un corps de déviation (37) en forme de toit ou de pyramide.
  2. Sonde de projection (10) selon la revendication 1, caractérisée en ce qu'un angle α entre la surface d'impact (30) et l'axe longitudinal (31) du tube de projection (28) est compris entre 50° et 20°, de préférence entre 40° et 30°, en particulier égal à 35° environ.
  3. Sonde de projection (10) selon la revendication 1 ou 2, caractérisée en ce que la surface d'impact (30) est bombée de manière concave.
  4. Sonde de projection (10) selon l'une des revendications 1, 2 ou 3, caractérisée en ce que l'ouverture de sortie (29) est formée par un trou oblong s'étendant dans la direction longitudinale du tube de projection (28).
  5. Sonde de projection (10) selon la revendication 4, caractérisée en ce que la longueur de la surface d'impact (30), lorsqu'elle est vue dans la direction longitudinale du tube de projection (28), est environ égale à un tiers jusqu'à quatre cinquièmes de la longueur du trou oblong.
  6. Sonde de projection (10) selon l'une des revendications précédentes, caractérisée en ce que le corps de buse (26), en particulier le corps de déviation (37), est trempé.
  7. Sonde de projection (10) selon l'une des revendications précédentes, caractérisée en ce que l'extrémité avant du tube de projection (28) est insérée dans l'alésage formant le conduit de matière à projeter (36), et en ce que le corps de buse (26) est soudé, en particulier soudé par points, avec le tube de projection (28).
  8. Dispositif pour nettoyer des cavités, en particulier des cavités calaminées étroites, telles que des conduits d'admission (18) de soupapes (19) de moteurs à combustion, comportant :
    - une sonde de projection (10) selon l'une des revendications précédentes et
    - une conduite d'alimentation en matière à projeter (11) reliée à l'extrémité arrière de la sonde de projection (10), dont l'extrémité côté entrée est reliée à un dispositif (12) qui est raccordé à une source de matière à projeter (15) pour mélanger de la matière à projeter granulaire avec un gaz comprimé, et qui peut être raccordé à une source de gaz comprimé par l'intermédiaire d'une conduite de gaz comprimé (16).
EP18700211.8A 2017-01-13 2018-01-10 Sonde de projection conçue pour introduire une matière de grenaillage dans une cavité Active EP3568261B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202017100159.8U DE202017100159U1 (de) 2017-01-13 2017-01-13 Strahlsonde zum Einbringen eines körnigen Strahlguts in einen Hohlraum
PCT/EP2018/050507 WO2018130540A1 (fr) 2017-01-13 2018-01-10 Sonde de projection conçue pour introduire une matière de grenaillage dans une cavité

Publications (2)

Publication Number Publication Date
EP3568261A1 EP3568261A1 (fr) 2019-11-20
EP3568261B1 true EP3568261B1 (fr) 2021-09-01

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP18700211.8A Active EP3568261B1 (fr) 2017-01-13 2018-01-10 Sonde de projection conçue pour introduire une matière de grenaillage dans une cavité

Country Status (7)

Country Link
US (1) US20190366507A1 (fr)
EP (1) EP3568261B1 (fr)
CN (1) CN110191782B (fr)
CA (1) CA3050032C (fr)
DE (1) DE202017100159U1 (fr)
ES (1) ES2898750T3 (fr)
WO (1) WO2018130540A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019138240A (ja) * 2018-02-13 2019-08-22 トヨタ自動車株式会社 燃料配管
DE102018130598A1 (de) 2018-11-30 2020-06-04 ZELL Oberflächentechnik GmbH & Co. KG Vorrichtung, Umlenkstift und Verfahren zum Bearbeiten von Oberflächen in Totraumbohrungen

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US2439032A (en) * 1945-11-01 1948-04-06 Gen Motors Corp Shot blasting nozzle
US2739424A (en) * 1953-01-05 1956-03-27 Donald E Hilliard Method of sandblasting
US4180948A (en) * 1977-07-15 1980-01-01 Stoltz Woodrow W Internal pipeline cleaning device
DE3527923A1 (de) * 1985-08-03 1987-02-12 Baiker Ag Verfahren und vorrichtung zum verfestigen der wandung einer bohrung durch kugelstrahlen
DD282414A5 (de) * 1989-04-14 1990-09-12 Ingenieurschule Fuer Kraft Und Strahlduese zur oberflaechenbehandlung schwer zugaengiger bauteile
US5125425A (en) * 1991-02-27 1992-06-30 Folts Michael E Cleaning and deburring nozzle
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JP2002239909A (ja) * 2001-02-09 2002-08-28 Sintokogio Ltd 中・小型機械部品の内面用の砥粒噴射ノズル機構
WO2004037108A1 (fr) * 2002-10-23 2004-05-06 Kaltenbach & Voigt Gmbh & Co. Kg Canule pour piece a main utilisee en medecine ou en medecine dentaire, pour pulveriser un milieu d'ecoulement abrasif
US7125322B1 (en) * 2004-09-17 2006-10-24 Electronics, Inc. Media transport device providing stable flow of media
DE102008010847A1 (de) * 2008-02-25 2009-08-27 Rolls-Royce Deutschland Ltd & Co Kg Verfahren und Vorrichtung zum Kugelstrahlverfestigen von Bliskschaufeln
FR2962323B1 (fr) * 2010-07-07 2012-08-10 Conception Des Applic Des Tech Electroniques Soc Pour Buse pour polisseur
DE102010039696A1 (de) 2010-08-24 2012-03-01 Tunap Industrie Chemie Gmbh & Co. Produktions Kg Verfahren und Vorrichtung zur Reinigung von verkokten Hohlräumen insbesondere von Einlasskanälen und Ventilen eines Verbrennungsmotors
EP2565416A1 (fr) 2011-08-31 2013-03-06 Tunap Industrie Chemie GmbH & Co. Produktions KG Procédé et dispositif de nettoyage d'espaces creux cokéfiés, notamment de soupapes dans des canaux d'entrée d'un moteur à combustion interne
JP6036704B2 (ja) * 2011-12-26 2016-11-30 新東工業株式会社 ショット処理方法及びショット処理装置
EP2848367B1 (fr) * 2013-09-11 2016-03-23 Rolls-Royce Deutschland Ltd & Co KG Appareil et procédé pour le grenaillage de surfaces de montage de lame sur le disque d'un agencement de rotor
DE202013012150U1 (de) * 2013-10-24 2015-06-15 Fritz Winter Eisengiesserei Gmbh & Co. Kg Vorrichtung zum Entfernen von Gießkernrückständen
KR20160096930A (ko) * 2015-02-06 2016-08-17 배명일 디젤엔진의 흡기구 세정장치

Also Published As

Publication number Publication date
ES2898750T3 (es) 2022-03-08
BR112019014324A2 (pt) 2020-02-11
CN110191782B (zh) 2021-06-29
EP3568261A1 (fr) 2019-11-20
US20190366507A1 (en) 2019-12-05
WO2018130540A1 (fr) 2018-07-19
DE202017100159U1 (de) 2017-01-27
CA3050032A1 (fr) 2018-07-19
CN110191782A (zh) 2019-08-30
CA3050032C (fr) 2021-03-30

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