JPH0451718B2 - - Google Patents

Info

Publication number
JPH0451718B2
JPH0451718B2 JP57213247A JP21324782A JPH0451718B2 JP H0451718 B2 JPH0451718 B2 JP H0451718B2 JP 57213247 A JP57213247 A JP 57213247A JP 21324782 A JP21324782 A JP 21324782A JP H0451718 B2 JPH0451718 B2 JP H0451718B2
Authority
JP
Japan
Prior art keywords
piston
contaminants
fluid
pressure
diaphragm
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
Application number
JP57213247A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58113733A (ja
Inventor
Jon Fuitsushaa Maachin
Aateindeeru Heron Rojaa
Roorensu Hyuuzu Maachin
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.)
NAT RES DEV
Original Assignee
NAT RES DEV
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 NAT RES DEV filed Critical NAT RES DEV
Publication of JPS58113733A publication Critical patent/JPS58113733A/ja
Publication of JPH0451718B2 publication Critical patent/JPH0451718B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/06—Investigating concentration of particle suspensions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
    • B01D35/143—Filter condition indicators
    • 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
    • F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Pipeline Systems (AREA)
JP57213247A 1981-12-04 1982-12-04 油圧系統中の汚染物量の測定装置 Granted JPS58113733A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8136634 1981-12-04
GB8136634 1981-12-04

Publications (2)

Publication Number Publication Date
JPS58113733A JPS58113733A (ja) 1983-07-06
JPH0451718B2 true JPH0451718B2 (enExample) 1992-08-19

Family

ID=10526381

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57213247A Granted JPS58113733A (ja) 1981-12-04 1982-12-04 油圧系統中の汚染物量の測定装置

Country Status (5)

Country Link
US (1) US4495799A (enExample)
EP (1) EP0081340B1 (enExample)
JP (1) JPS58113733A (enExample)
DE (1) DE3274487D1 (enExample)
GB (1) GB2112530B (enExample)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4583396A (en) * 1982-08-13 1986-04-22 Ministry Of Defence Contamination level indicator
US4599893A (en) * 1983-04-18 1986-07-15 National Research Development Corporation Determining the level of contaminants in a hydraulic system
US5095740A (en) * 1987-12-31 1992-03-17 Diagnetics, Inc. System for monitoring and analyzing solid contaminents in fluids
GB9020811D0 (en) * 1990-09-25 1990-11-07 Heron Roger A Improvements in or relating to liquid flow systems
GB2263782B (en) * 1990-09-25 1994-03-30 British Tech Group Improvements in or relating to liquid flow systems
US5385043A (en) * 1993-10-15 1995-01-31 Diagnetics, Inc. Contamination measurement apparatus
US6474144B1 (en) * 2000-03-18 2002-11-05 John Barnes Determining the level of particulate contamination in a fluid power system
GB0017987D0 (en) * 2000-07-21 2000-09-13 Moog Controls Fluid containment sensor
US6422068B1 (en) * 2000-09-29 2002-07-23 General Electric Company Test rig and particulate deposit and cleaning evaluation processes using the same
GB2378251B (en) * 2001-08-02 2005-11-02 Moog Inc Method and apparatus for measuring fluid contaminants
EP3221694B1 (en) 2014-11-21 2021-01-06 Vestas Wind Systems A/S A contaminant sensor for detecting magnetizable contaminants in lubricant flow
NL2020053B1 (nl) * 2017-12-11 2019-06-19 N V Nederlandsche Apparatenfabriek Nedap Melkmeter

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3050987A (en) * 1959-01-28 1962-08-28 Boeing Co Contamination meter and process for detecting contamination
US3182670A (en) * 1963-01-16 1965-05-11 Martin Marietta Corp Means for decontaminating fluid systems
GB1098186A (en) * 1964-04-30 1968-01-10 Fairey Eng Apparatus for assessing the level of solid contaminants in hydraulic systems
US3359786A (en) * 1965-04-08 1967-12-26 Osakeyhtio Keskuslaboratorio C Method of and apparatus for determining the shives content in a fiber suspension
US3893334A (en) * 1973-01-24 1975-07-08 Australian Paper Manufacturers Estimating the concentration of solid matter suspended in a fluid stream
US3832094A (en) * 1973-03-23 1974-08-27 Int Basic Economy Corp Hydraulic pump
US3941958A (en) * 1974-08-09 1976-03-02 Caterpillar Tractor Co. Filter bypass indicator
US3952580A (en) * 1975-06-19 1976-04-27 J. I. Case Company Apparatus for counting particle contamination in a liquid

Also Published As

Publication number Publication date
GB2112530B (en) 1986-09-17
GB2112530A (en) 1983-07-20
JPS58113733A (ja) 1983-07-06
US4495799A (en) 1985-01-29
DE3274487D1 (en) 1987-01-15
EP0081340A1 (en) 1983-06-15
EP0081340B1 (en) 1986-11-26

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