WO1998015437A2 - Procede de lavage de systemes hydrauliques de materiel lourd - Google Patents

Procede de lavage de systemes hydrauliques de materiel lourd Download PDF

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Publication number
WO1998015437A2
WO1998015437A2 PCT/US1997/018229 US9718229W WO9815437A2 WO 1998015437 A2 WO1998015437 A2 WO 1998015437A2 US 9718229 W US9718229 W US 9718229W WO 9815437 A2 WO9815437 A2 WO 9815437A2
Authority
WO
WIPO (PCT)
Prior art keywords
hydraulic system
cleaning solution
fluid
flow path
recited
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.)
Ceased
Application number
PCT/US1997/018229
Other languages
English (en)
Inventor
Kevin Lea
Calvin E. Ray, Jr.
Roger A. Hanes
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.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AU50798/98A priority Critical patent/AU5079898A/en
Publication of WO1998015437A2 publication Critical patent/WO1998015437A2/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
    • B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/04—Special measures taken in connection with the properties of the fluid

Definitions

  • TECHNICAL FIELD This invention relates generally to the maintenance of
  • the present invention provides means
  • the fluid is filtered to remove the contamination load caused by
  • cleaning fluid is circulated through the target system in a circuit-type fashion which
  • fresh fluid may
  • One embodiment of the present invention is a method for flushing a
  • a first step of the process is to
  • Branch fluid flow paths may also be flushed using the present cleansing
  • control valves for a specific feature, such as a power brake
  • FIG. 1 is a schematic illustration of the flushing system according to the
  • the heavy equipment piece flushing system 05 is
  • the hydraulic system 20 of the equipment piece includes a low pressure
  • main hydraulic pump 25 through which or around which the flushing action of the
  • a receptacle for hydraulic fluid during operation of the equipment piece and as a
  • the bathtub 45 includes two
  • a waste reservoir or drain fluid catch pan 55 is
  • system fluid in the illustrative case hydraulic fluid, is permitted to drain by gravity
  • a low pressure pump (P L ) 10a is located in parallel with a high pressure
  • the two pumps 10a, 10b may be operator selected for use based upon the
  • a check valve CV 4 is located at the main hydraulic pump 25 that under sufficient pressure permits fluid to flow into and through the low
  • rotary pump 10b is operated for a period of time typically lasting between two and
  • the drain port 50 is closed. Thereafter, the cleaning solution that is
  • porosity after-filter (F 2 ) 75 thereby eliminating that contamination and debris that
  • the cleaning solution is vacuumed from the fluid reservoir 45 back into the
  • the tank 60 is considered an
  • accumulation tank 60 where the filtered cleaning solution is reservoired for
  • the accumulation tank 60 is the only tank actually contained
  • drain port 50 which is typically at an extreme downstream location within
  • the low pressure pump 1 0a will be utilized and develop sufficient pressure for the
  • washing cycles may be affected wherein this process is substantially
  • replenishing fluid is withdrawn from a fresh fluid reservoir 57 and injected into the
  • present invention further avoids maintenance and extends the operational life of
  • This condition may be likened to equipment standing idle and
  • system to be flushed may be a transmission
  • the transmission system used for moving the equipment piece about is a branch
  • a cleaning solution circulation circuit may be
  • the cleaning solution will be typically heated to a sufficient temperature
  • circuit will include passage through the heated accumulation tank 60.
  • circulation circuit will, however, include passage through both of the filters 65 and
  • These driven accessories may range
  • one or more hydraulically driven accessory or feature (F x ) may be
  • FIG. 1 Such a branch fluid flow path 95 is illustrated with respect to one feature, F, .
  • a feature such as the
  • V F1 This permits the passage of fluid past a check valve (CV ⁇ and ultimately
  • One or more features may be flushed by the establishment of
  • This cleansing of a plurality of features may be
  • V FX the control valves
  • the check valve (CV 4 ) prevents backward flow
  • a transmission system 22 is shown to be in ⁇
  • a jumper conduit 35 may be required that
  • a hydraulic return circuit has been illustrated wherein a transfer pump
  • V x multi-directional valves
  • Valve (V ⁇ ) is utilized for determining the possible directions of flow therethrough.
  • V FX inlet control valve
  • valves (CV X ) to assure uni-directional flow through the primary and branch fluid
  • valves (V 7 ) and (V 8 ) As indicated in
  • valve (V 8 ) opens and closes drainage to the waste reservoir while valve
  • valve (V 5 ) When the flow of cleaning solution reaches valve (V 5 ), it is optionally directed toward the accumulation tank 60 when the evacuating
  • valve (V 5 ) may direct the return fluid to
  • valves (V 2 ) and (V 3 ) The circulation of cleaning
  • valve (V 4 ) This
  • valve (V 4 ) in conjunction with the valve (V 6 ) determines which fluid will be
  • valve (V 6 ) causes the withdrawal of replenishing fresh operating
  • the high pressure pump 10b is designed and selected so that is has capacity

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Cleaning In General (AREA)

Abstract

L'invention concerne un procédé de lavage du système (20) hydraulique d'un matériel lourd. Une première étape du procédé consiste à ouvrir un orifice (50) de vidange du système (20) hydraulique du matériel lourd et à évacuer le liquide hydraulique contenu à l'intérieur, dans un réservoir de vidange (55) séparé du matériel lourd lui-même. Une solution de nettoyage est alors injectée dans le système (20) hydraulique pour purger du système (20) les résidus de liquide hydraulique qui est rejeté dans le réservoir de vidange (55). Pendant cette étape, les liquides de vidange et d'épuration sont surveillés pour détecter le moment où le liquide hydraulique usé cesse de s'écouler du système (20) et celui où la solution de nettoyage commence ensuite à s'écouler du système (20). Lorsque ce moment est détecté, on ferme l'orifice (50) de vidange et la solution de nettoyage, qui continue d'être injectée, est retenue dans le système (20) hydraulique. Plus tard, on évacue du système (20) hydraulique la solution de nettoyage accumulée et on injecte du liquide hydraulique de remplissage frais dans le système (20) hydraulique. Le matériel peut alors être remis en service avec des liquides neufs et en règle générale, une efficacité accrue.
PCT/US1997/018229 1996-10-08 1997-10-08 Procede de lavage de systemes hydrauliques de materiel lourd Ceased WO1998015437A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU50798/98A AU5079898A (en) 1996-10-08 1997-10-08 Method for flushing heavy equipment hydraulic systems

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US2741596P 1996-10-08 1996-10-08
US60/027,415 1996-10-08

Publications (1)

Publication Number Publication Date
WO1998015437A2 true WO1998015437A2 (fr) 1998-04-16

Family

ID=21837620

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1997/018229 Ceased WO1998015437A2 (fr) 1996-10-08 1997-10-08 Procede de lavage de systemes hydrauliques de materiel lourd

Country Status (2)

Country Link
AU (1) AU5079898A (fr)
WO (1) WO1998015437A2 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1177841A1 (fr) * 2000-08-03 2002-02-06 Chemische Fabrik Dr. Weigert GmbH & Co KG Procédé pour nettoyer des installations à ultra-haute température
CN103115039A (zh) * 2013-03-15 2013-05-22 金川集团股份有限公司 一种液压系统闭合回路的快速清洗方法
FR2998201A1 (fr) * 2012-11-19 2014-05-23 Airbus Operations Sas Dispositif et methode de nettoyage d'un circuit hydraulique
CN106269727A (zh) * 2016-07-29 2017-01-04 中国冶集团有限公司 一种对液压管路进行循环冲洗的工艺方法
RU2616733C1 (ru) * 2016-01-22 2017-04-18 Общество с ограниченной ответственностью "НИЦ "Теас-МО" (ООО "НИЦ "Теас-МО") Способ поддержания оптимального уровня чистоты рабочей жидкости в гидравлических системах и устройство для его осуществления
WO2020069631A1 (fr) * 2018-10-05 2020-04-09 New Tech Copper Spa Dispositif de distribution d'électrolyte depuis la base de la cellule ou cuve d'électro-obtention et procédé de nettoyage du dispositif

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1177841A1 (fr) * 2000-08-03 2002-02-06 Chemische Fabrik Dr. Weigert GmbH & Co KG Procédé pour nettoyer des installations à ultra-haute température
FR2998201A1 (fr) * 2012-11-19 2014-05-23 Airbus Operations Sas Dispositif et methode de nettoyage d'un circuit hydraulique
US9815007B2 (en) 2012-11-19 2017-11-14 Airbus Operations (Sas) Device and method for cleaning a hydraulic circuit
CN103115039A (zh) * 2013-03-15 2013-05-22 金川集团股份有限公司 一种液压系统闭合回路的快速清洗方法
CN103115039B (zh) * 2013-03-15 2015-08-12 金川集团股份有限公司 一种液压系统闭合回路的快速清洗方法
RU2616733C1 (ru) * 2016-01-22 2017-04-18 Общество с ограниченной ответственностью "НИЦ "Теас-МО" (ООО "НИЦ "Теас-МО") Способ поддержания оптимального уровня чистоты рабочей жидкости в гидравлических системах и устройство для его осуществления
CN106269727A (zh) * 2016-07-29 2017-01-04 中国冶集团有限公司 一种对液压管路进行循环冲洗的工艺方法
WO2020069631A1 (fr) * 2018-10-05 2020-04-09 New Tech Copper Spa Dispositif de distribution d'électrolyte depuis la base de la cellule ou cuve d'électro-obtention et procédé de nettoyage du dispositif

Also Published As

Publication number Publication date
AU5079898A (en) 1998-05-05

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