GB1090900A - Improvements in or relating to magnetic scavenging devices - Google Patents

Improvements in or relating to magnetic scavenging devices

Info

Publication number
GB1090900A
GB1090900A GB3881366A GB3881366A GB1090900A GB 1090900 A GB1090900 A GB 1090900A GB 3881366 A GB3881366 A GB 3881366A GB 3881366 A GB3881366 A GB 3881366A GB 1090900 A GB1090900 A GB 1090900A
Authority
GB
United Kingdom
Prior art keywords
magnet
magnetic
pipe
lubricant
bar
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
Application number
GB3881366A
Inventor
John Derek Hislop
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.)
Rolls Royce PLC
Original Assignee
Rolls Royce PLC
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 Rolls Royce PLC filed Critical Rolls Royce PLC
Priority to GB3881366A priority Critical patent/GB1090900A/en
Publication of GB1090900A publication Critical patent/GB1090900A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N29/00—Special means in lubricating arrangements or systems providing for the indication or detection of undesired conditions; Use of devices responsive to conditions in lubricating arrangements or systems
    • F16N29/04—Special means in lubricating arrangements or systems providing for the indication or detection of undesired conditions; Use of devices responsive to conditions in lubricating arrangements or systems enabling a warning to be given; enabling moving parts to be stopped

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

1,090,900. Magnetic separators. ROLLSROYCE Ltd. Aug. 31, 1966, No. 38813/66. Heading B2J. [Also in Division Gl] A magnetic scavenging device 10 for detecting the presence of magnetic particles in lubricating systems, e.g. in gas turbine engines, whereby, e.g. wear on bearings can be detected, comprises a bar magnetic 12 encased in a non- magnetic casing 14, cut away to expose one end 24 of the magnet to the lubricant flowing in the pipe 56. Magnetic particles in the lubricant adhere to the magnet and are detected by a device 46, arranged to be equidistant from the two ends of the magnet, and therefore, normall in zero field for measuring the field of the magnet in the equatorial plane, which is, to a first approximation, linearly related to the mass of particles adhering to the exposed end of the magnet. This device may consist of two coils with their axes perpendicular to the axis of the magnet, one coil being supplied with a.c. current and a measuring device connected to the other to measure the second harmonic content of its output. Alternatively a Hall effect semi-conductor may be used. In a modification a second similar bar magnet is mounted coaxial with the magnet 12, with adjacent ends of opposite polarity and separated by a plug of non-magnetic material on which the device 46 is mounted. The casing 14 is screwed into a housing 16 in the pipe 56, the housing being provided with apertures 34 through which the lubricant flows. A plate 40 is provided, spring biassed against the end 24 of the magnet 12, so that when it is removed from the pipe, the plate closes the resulting aperture in the pipe wall. The bar magnet 12 may be replaced by an electromagnet.
GB3881366A 1966-08-31 1966-08-31 Improvements in or relating to magnetic scavenging devices Expired GB1090900A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3881366A GB1090900A (en) 1966-08-31 1966-08-31 Improvements in or relating to magnetic scavenging devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3881366A GB1090900A (en) 1966-08-31 1966-08-31 Improvements in or relating to magnetic scavenging devices

Publications (1)

Publication Number Publication Date
GB1090900A true GB1090900A (en) 1967-11-15

Family

ID=10405841

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3881366A Expired GB1090900A (en) 1966-08-31 1966-08-31 Improvements in or relating to magnetic scavenging devices

Country Status (1)

Country Link
GB (1) GB1090900A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2029580A (en) * 1978-08-10 1980-03-19 Central Electr Generat Board Devices for detecting ferromagnetic particles in a liquid
WO1985004715A1 (en) * 1984-04-09 1985-10-24 The University College Of Swansea Method and apparatus for assessing particle deposits
GB2186978A (en) * 1985-10-10 1987-08-26 Dennis Amerena Parker A high resolution magnetometer for sensing metallic samples
GB2190503A (en) * 1986-05-16 1987-11-18 Aeroquip Corp Monitoring or testing arrangement for ferrous debris sensor

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2029580A (en) * 1978-08-10 1980-03-19 Central Electr Generat Board Devices for detecting ferromagnetic particles in a liquid
GB2029580B (en) * 1978-08-10 1983-06-15 Central Electr Generat Board Improvements in or relating to the collection and sensing of magnetic debris in lubricating oil and other liquids
WO1985004715A1 (en) * 1984-04-09 1985-10-24 The University College Of Swansea Method and apparatus for assessing particle deposits
GB2186978A (en) * 1985-10-10 1987-08-26 Dennis Amerena Parker A high resolution magnetometer for sensing metallic samples
GB2186978B (en) * 1985-10-10 1990-06-13 Dennis Amerena Parker High resolution magnetometer
GB2190503A (en) * 1986-05-16 1987-11-18 Aeroquip Corp Monitoring or testing arrangement for ferrous debris sensor
FR2598818A1 (en) * 1986-05-16 1987-11-20 Aeroquip Corp DEVICE FOR VERIFYING THE INTEGRITY OF A FERROUS DEBRIS DETECTION AND CAPTURE SYSTEM IN A FLOWING LIQUID AND DETECTOR FOR CONSTITUTING SUCH A DEVICE.
GB2190503B (en) * 1986-05-16 1990-07-25 Aeroquip Corp Monitored diagnostic sensor

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