US3730040A - Energy absorber for high pressure fluid jets - Google Patents

Energy absorber for high pressure fluid jets Download PDF

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Publication number
US3730040A
US3730040A US3730040DA US3730040A US 3730040 A US3730040 A US 3730040A US 3730040D A US3730040D A US 3730040DA US 3730040 A US3730040 A US 3730040A
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US
United States
Prior art keywords
jet
fluid jet
housing
energy
absorb
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.)
Expired - Lifetime
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English (en)
Inventor
R Chadwick
J Robertson
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.)
Bendix Corp
Original Assignee
Bendix Corp
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Filing date
Publication date
Application filed by Bendix Corp filed Critical Bendix Corp
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Publication of US3730040A publication Critical patent/US3730040A/en
Anticipated expiration legal-status Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C9/00—Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F3/00—Severing by means other than cutting; Apparatus therefor
    • B26F3/004—Severing by means other than cutting; Apparatus therefor by means of a fluid jet
    • B26F3/008—Energy dissipating devices therefor, e.g. catchers; Supporting beds therefor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/364—By fluid blast and/or suction

Definitions

  • ABSTRACT A device for absorbing the energy of a fluid cutting jet after it has passed through the workpiece in order to reduce the sound level as well as the spray and vapor nonnally accompanying the fluid jet cutting process.
  • the device includes a baffle arrangement disposed immediately adjacent the workpiece and enclosed in a housing to receive and contain the jet after it has passed through the workpiece so as to prevent the sonic energy and spray from emanating into the surrounding environment.
  • the jet itself is directed through the baffle arrangement to impact a liquid bath, backed up with a hardened steel block, thereby dissipating its momentum.
  • Fluid jet cutting systems have been proposed in the past and have been demonstrated to be highly effective for certain applications.
  • a fluid such as water is discharged through a nozzle at extremely high pressures ranging from 10,000 to 100,000 psi to impact a workpiece and shear it by the high kinetic energy of the jet.
  • the process is normally carried out in the open, and the extremely high jet velocities (may be on the order of 3,000 ft/sec) can cause noise levels to reach 140 decibels in the immediate vicinity of the jet. This level intensity must be regarded as highly undesirableand contrary to the interests of operator comfort and efficiency.
  • the high energy of the jet must be somehow absorbed to minimize the danger of accidental impacting of the jet with persons or equipment, and the fluid itself collected for disposal.
  • the resilient cushion is likely to be a high maintenance item as it is very easily degraded by the jet action, and none of the prior. art systems provides for the former problem, i.e., the noise created by the jet.
  • FIG. 1 is a sectional view of an energy absorber according to the present invention.
  • FIG. 2 is a sectional view of an alternate embodiment of the energy absorber according to the present invention.
  • a nozzle tip 10 is depicted disposed to direct a jet 12 of a liquid such as water against a workpiece 14 which is moved past the jet 12 to produce a cutting action thereon. After passing through the workpiece 14, the jet is directed via opening 16 in the workpiece support 18 to the energy absorber 20 disposed immediately proximate to the exit point of the jet 12.
  • the energy absorber 20 includes a housing 22 supported on a base 24 and closed at one end by means of a top plate 26 retained by an end cap 28.
  • the top plate 26 has an opening 30 formed therein to allow the jet 12 to pass into the housing cavity 32 while reducing the volume of material removed from the workpiece to be carried thereinto.
  • a baffling arrangement consisting of a volume of a resilient material 34 such as foam rubber having a passage 36 formed therein by the initial action of the fluid jet and retained in a holder 38 also having an opening 40 formed therein, with opening 40 being aligned with the jet 12 to allow it to pass therethrough.
  • the volume of resilient material 34 functions to prevent the emanation of spray and sonic energy from the interior of the absorber into the surrounding environs so as to drastically reduce the noise level accompanying the operation of the device.
  • the jet 12 then passes into an open space 42, then into a space 44 containing a liquid such as water where a portion of its energy is absorbed, and finally impacts a hardened steel impact block disposed at the bottom of space 44 which absorbs the residual energy of the jet 12.
  • the overflow created by the liquid which forms the jet 12 is disposed of via vent and overflow outlet 48 which leads to a drain.
  • the passage of the jet through the volume of water in space 44 functions to further reduce the noise level as the Mach number of the jet is greatly reduced in water, and its kinetic energy is also considerably reduced by friction and fluid entrainment before impacting the hardened steel impact block 44 to lessen the erosive effect the jet 12 may have thereon.
  • the impact block 44 may be of other suitably hard material capable of resisting the erosive action of the jet such as tungsten carbide.
  • the impact block 44 may be replaced as may also the volume of resilient material if erosive wear has been substantial.
  • FIG. 2 A second embodiment is depicted in FIG. 2, and is substantially the same as that depicted in FIG. 1 with the exception of the baffling arrangement which in this embodiment consists of a series of frusto-conical baffle plates 50 with respect to back spray of the jet, having openings 52 disposed in the holder 38 and positioned by means of spacers 54. It has been found that the reversely sloping orientation of the baffle plates 50' prevents sound, spray, and vapor from passing back out the entrance opening 30 as these tend to be trapped thereby and confined in the housing 22, while eliminating any need to service the device, as no significant erosion of the frusto conical baffle plates 50 normally occurs during reasonable maintenance intervals.
  • the baffling arrangement which in this embodiment consists of a series of frusto-conical baffle plates 50 with respect to back spray of the jet, having openings 52 disposed in the holder 38 and positioned by means of spacers 54. It has been found that the reversely sloping orientation of the baffle
  • An energy absorber for receiving a high velocity jet of liquid comprising:
  • baffle means within said housing to absorb said high velocity fluid jet energy including baffle means surrounding said fluid jet after it enters said housing and preventing sound and spray from passing back out of said housing, comprising a volume of resilient material having a passage therethrough to receive said jet whereby sound and spray from said jet is substantially prevented from passing into the surrounding environment.
  • energy absorbing means including a housing disposed to receive and substantially contain said fluid jet immediately after passing through said workpiece and also including means in said housing to absorb the energy of said fluid jet including baffle means surrounding said fluid jet after it enters said housing and preventing sound and spray from passing back out of said housing, comprising a volume of resilient material having a passage therethrou gh to receive said jet.
  • said means to absorb said fluid jet energy includes a liquid bath disposed to be impacted by said fluid jet.
  • said means to absorb said fluid jet energy further includes a block in said liquid bath disposed to be impacted by said fluid jet after passing through said liquid bath.
  • An energy absorber for receiving a high velocity jet of liquid comprising:
  • a housing disposed to receive said high velocity jet and substantially enclose it
  • baffle means within said housing to absorb said high velocity jet energy including baffle means surrounding said fluid jet after it enters said housing and preventing sound and spray from passing back out of said housing, comprising a plurality of baffle plates each having an opening aligned with each other to receive said jet.
  • said means to absorb said fluid jet energy further includes a block in said liquid bath disposed to be impacted by said fluid jet after passing through said liquid bath.
  • energy absorbing means including a housing disposed to receive and substantially contain said fluid jet immediately after passing through said workpiece and also including means in said housing to absorb the energy of said fluid jet including baffle means surrounding said fluid jet after it enters said housing and preventing sound and spray from passing back out of said housing, comprising a plurality of baffle plates each having an opening aligned with each other to receive said jet.
  • said means to absorb said fluid jet energy further includes a block in said liquid bath disposed to be impacted by said fluid jet after passing through said liquid bath.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
US3730040D 1971-08-17 1971-08-17 Energy absorber for high pressure fluid jets Expired - Lifetime US3730040A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US17253071A 1971-08-17 1971-08-17
CH296173A CH567908A5 (fr) 1971-08-17 1973-02-28

Publications (1)

Publication Number Publication Date
US3730040A true US3730040A (en) 1973-05-01

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Family Applications (1)

Application Number Title Priority Date Filing Date
US3730040D Expired - Lifetime US3730040A (en) 1971-08-17 1971-08-17 Energy absorber for high pressure fluid jets

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US (1) US3730040A (fr)
CH (1) CH567908A5 (fr)

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3978748A (en) * 1974-11-25 1976-09-07 Camsco, Inc. Fluid jet cutting system
US4137804A (en) * 1974-07-12 1979-02-06 Gerber Garment Technology, Inc. Fluid cutting jet receiver
FR2405117A1 (fr) * 1977-10-07 1979-05-04 Gerber Garment Technology Inc Appareil de coupe au moyen d'un jet de fluide
FR2440817A1 (fr) * 1978-11-13 1980-06-06 Gerber Garment Technology Inc Banc de support se reconstituant de lui-meme pour appareil de coupe a jet de fluide
US4463639A (en) * 1982-06-22 1984-08-07 Gerber Garment Technology, Inc. Fluid jet receiver positioner
US4532949A (en) * 1982-09-29 1985-08-06 The Boeing Company Energy absorber for high energy fluid jet
US4620466A (en) * 1983-10-17 1986-11-04 Societe Nationale Industrielle Et Aerospatiale Cutting machine
AU569673B2 (en) * 1986-05-07 1988-02-11 Flow Systems Inc. Energy dissipating receptacle
US4790224A (en) * 1987-08-20 1988-12-13 Belcan Corporation Travelling gap conveyor cutting method and apparatus
US4864780A (en) * 1987-11-30 1989-09-12 Flow Systems, Inc. Energy-dissipating receptacle for high velocity fluid jets
US4964244A (en) * 1985-07-10 1990-10-23 Flow Systems, Inc. Energy dissipating receptacle for high-velocity fluid jet
US5127199A (en) * 1991-01-08 1992-07-07 Progressive Blasting Systems, Inc. Abrasive water jet catch tank media transporting means
FR2684742A1 (fr) * 1991-12-06 1993-06-11 Gaz De France Dispositif de protection contre les jets de fluide a haute ou tres haute pression.
US5349788A (en) * 1992-10-17 1994-09-27 Saechsishe Werkzeug Und Sondermaschinen Gmbh Apparatus for catching residual water jet in water jet cutting apparatus
US5505653A (en) * 1992-10-17 1996-04-09 Saechsische Werkzeug Und Sondermaschinen Gmbh Abrasive/water jet cutting apparatus
US5831224A (en) * 1995-04-07 1998-11-03 Design Systems, Inc. Noise reduction system for fluid cutting jets
US5980372A (en) * 1997-11-25 1999-11-09 The Boeing Company Compact catcher for abrasive waterjets
RU2170661C1 (ru) * 2000-05-29 2001-07-20 Орловский государственный технический университет Установка для раскроя текстильных материалов сверхзвуковой струей жидкости
US20060180579A1 (en) * 2005-02-11 2006-08-17 Towa Intercon Technology, Inc. Multidirectional cutting chuck
WO2008043335A1 (fr) * 2006-10-13 2008-04-17 Reinhard Diem Dispositif de capture et procédé de capture du jet de coupure d'une machine d'usinage jet d'eau
US20120297943A1 (en) * 2010-02-10 2012-11-29 Snecma Cutting of preforms prior to rtm injection by means of a water jet and cryonics
EP2676738A1 (fr) 2012-06-19 2013-12-25 General Electric Company Dispositif à générer au moins un rideau d'eau et dispositif correspondant
US8894468B2 (en) 2012-05-16 2014-11-25 Flow International Corporation Fluid jet receptacle with rotatable inlet feed component and related fluid jet cutting system and method
US20150118942A1 (en) * 2013-10-28 2015-04-30 Flow International Corporation Fluid jet cutting systems, components and methods that facilitate improved work environments
US20150298342A1 (en) * 2014-02-10 2015-10-22 Par Systems, Inc. Waterjet Stream Catcher
US9238265B2 (en) 2012-09-27 2016-01-19 General Electric Company Backstrike protection during machining of cooling features
US9242294B2 (en) 2012-09-27 2016-01-26 General Electric Company Methods of forming cooling channels using backstrike protection
US9278462B2 (en) 2013-11-20 2016-03-08 General Electric Company Backstrike protection during machining of cooling features
US9358668B2 (en) 2012-07-19 2016-06-07 Ascent Aerospace, Llc Fluid jet receiving receptacles and related fluid jet cutting systems
US10857691B2 (en) 2014-02-11 2020-12-08 Par Systems, Llc Fluid stream catcher mounting system
CN115256239A (zh) * 2022-08-04 2022-11-01 王宇辰 印刷电路板数控水刀铣边机

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3014393C2 (de) * 1980-04-15 1984-10-04 Woma-Apparatebau Wolfgang Maasberg & Co Gmbh, 4100 Duisburg Gerät zum Hochdruckwasserstrahlschneiden
FR2534516B1 (fr) * 1982-10-19 1986-08-08 Aerospatiale Appareil de decoupe par jet de fluide haute pression

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2395123A (en) * 1945-04-13 1946-02-19 Schick Inc Sheet metal piercing
US2862251A (en) * 1955-04-12 1958-12-02 Chicopee Mfg Corp Method of and apparatus for producing nonwoven product
US2985050A (en) * 1958-10-13 1961-05-23 North American Aviation Inc Liquid cutting of hard materials
US3041906A (en) * 1959-08-14 1962-07-03 Olin Mathieson Explosive hole forming apparatus
US3212378A (en) * 1962-10-26 1965-10-19 Union Carbide Corp Process for cutting and working solid materials
US3553895A (en) * 1967-11-20 1971-01-12 Bruce W Power Hydraulic surface conditioning machine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2395123A (en) * 1945-04-13 1946-02-19 Schick Inc Sheet metal piercing
US2862251A (en) * 1955-04-12 1958-12-02 Chicopee Mfg Corp Method of and apparatus for producing nonwoven product
US2985050A (en) * 1958-10-13 1961-05-23 North American Aviation Inc Liquid cutting of hard materials
US3041906A (en) * 1959-08-14 1962-07-03 Olin Mathieson Explosive hole forming apparatus
US3212378A (en) * 1962-10-26 1965-10-19 Union Carbide Corp Process for cutting and working solid materials
US3553895A (en) * 1967-11-20 1971-01-12 Bruce W Power Hydraulic surface conditioning machine

Cited By (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4137804A (en) * 1974-07-12 1979-02-06 Gerber Garment Technology, Inc. Fluid cutting jet receiver
US3978748A (en) * 1974-11-25 1976-09-07 Camsco, Inc. Fluid jet cutting system
FR2405117A1 (fr) * 1977-10-07 1979-05-04 Gerber Garment Technology Inc Appareil de coupe au moyen d'un jet de fluide
FR2440817A1 (fr) * 1978-11-13 1980-06-06 Gerber Garment Technology Inc Banc de support se reconstituant de lui-meme pour appareil de coupe a jet de fluide
US4463639A (en) * 1982-06-22 1984-08-07 Gerber Garment Technology, Inc. Fluid jet receiver positioner
US4532949A (en) * 1982-09-29 1985-08-06 The Boeing Company Energy absorber for high energy fluid jet
US4620466A (en) * 1983-10-17 1986-11-04 Societe Nationale Industrielle Et Aerospatiale Cutting machine
US4964244A (en) * 1985-07-10 1990-10-23 Flow Systems, Inc. Energy dissipating receptacle for high-velocity fluid jet
AU569673B2 (en) * 1986-05-07 1988-02-11 Flow Systems Inc. Energy dissipating receptacle
US4790224A (en) * 1987-08-20 1988-12-13 Belcan Corporation Travelling gap conveyor cutting method and apparatus
US4864780A (en) * 1987-11-30 1989-09-12 Flow Systems, Inc. Energy-dissipating receptacle for high velocity fluid jets
US5127199A (en) * 1991-01-08 1992-07-07 Progressive Blasting Systems, Inc. Abrasive water jet catch tank media transporting means
FR2684742A1 (fr) * 1991-12-06 1993-06-11 Gaz De France Dispositif de protection contre les jets de fluide a haute ou tres haute pression.
US5349788A (en) * 1992-10-17 1994-09-27 Saechsishe Werkzeug Und Sondermaschinen Gmbh Apparatus for catching residual water jet in water jet cutting apparatus
US5505653A (en) * 1992-10-17 1996-04-09 Saechsische Werkzeug Und Sondermaschinen Gmbh Abrasive/water jet cutting apparatus
US5831224A (en) * 1995-04-07 1998-11-03 Design Systems, Inc. Noise reduction system for fluid cutting jets
US5980372A (en) * 1997-11-25 1999-11-09 The Boeing Company Compact catcher for abrasive waterjets
RU2170661C1 (ru) * 2000-05-29 2001-07-20 Орловский государственный технический университет Установка для раскроя текстильных материалов сверхзвуковой струей жидкости
US20060180579A1 (en) * 2005-02-11 2006-08-17 Towa Intercon Technology, Inc. Multidirectional cutting chuck
WO2008043335A1 (fr) * 2006-10-13 2008-04-17 Reinhard Diem Dispositif de capture et procédé de capture du jet de coupure d'une machine d'usinage jet d'eau
US20120297943A1 (en) * 2010-02-10 2012-11-29 Snecma Cutting of preforms prior to rtm injection by means of a water jet and cryonics
US9108331B2 (en) * 2010-02-10 2015-08-18 Snecma Cutting of preforms prior to RTM injection by means of a water jet and cryonics
US8894468B2 (en) 2012-05-16 2014-11-25 Flow International Corporation Fluid jet receptacle with rotatable inlet feed component and related fluid jet cutting system and method
EP2676738A1 (fr) 2012-06-19 2013-12-25 General Electric Company Dispositif à générer au moins un rideau d'eau et dispositif correspondant
US9358668B2 (en) 2012-07-19 2016-06-07 Ascent Aerospace, Llc Fluid jet receiving receptacles and related fluid jet cutting systems
US9242294B2 (en) 2012-09-27 2016-01-26 General Electric Company Methods of forming cooling channels using backstrike protection
US9238265B2 (en) 2012-09-27 2016-01-19 General Electric Company Backstrike protection during machining of cooling features
US20150118942A1 (en) * 2013-10-28 2015-04-30 Flow International Corporation Fluid jet cutting systems, components and methods that facilitate improved work environments
US9370871B2 (en) 2013-10-28 2016-06-21 Flow International Corporation Fluid jet cutting systems
US9573289B2 (en) * 2013-10-28 2017-02-21 Flow International Corporation Fluid jet cutting systems
US10493650B2 (en) 2013-10-28 2019-12-03 Flow International Corporation Fluid jet cutting systems, components and methods that facilitate improved work environments
US9278462B2 (en) 2013-11-20 2016-03-08 General Electric Company Backstrike protection during machining of cooling features
US20150298342A1 (en) * 2014-02-10 2015-10-22 Par Systems, Inc. Waterjet Stream Catcher
US10099397B2 (en) * 2014-02-10 2018-10-16 Par Systems, Llc Waterjet stream catcher
US10857691B2 (en) 2014-02-11 2020-12-08 Par Systems, Llc Fluid stream catcher mounting system
CN115256239A (zh) * 2022-08-04 2022-11-01 王宇辰 印刷电路板数控水刀铣边机
CN115256239B (zh) * 2022-08-04 2024-03-22 王宇辰 印刷电路板数控水刀铣边机

Also Published As

Publication number Publication date
CH567908A5 (fr) 1975-10-15

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