GB1491803A - Device for detecting the axial movement of a rotating shaft - Google Patents
Device for detecting the axial movement of a rotating shaftInfo
- Publication number
- GB1491803A GB1491803A GB2759/75A GB275975A GB1491803A GB 1491803 A GB1491803 A GB 1491803A GB 2759/75 A GB2759/75 A GB 2759/75A GB 275975 A GB275975 A GB 275975A GB 1491803 A GB1491803 A GB 1491803A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- piston
- fluid
- pressure
- pipe
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
- F01D21/04—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for responsive to undesired position of rotor relative to stator or to breaking-off of a part of the rotor, e.g. indicating such position
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/16—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring distance of clearance between spaced objects
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Turbines (AREA)
- Measuring Arrangements Characterized By The Use Of Fluids (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
1491803 Bearings GENERAL ELECTRIC CO 22 Jan 1975 [14 Feb 1974] 2759/75 Heading F2A [Also in Divisions F1 G1 and G3] A device for measuring axial or thrust bearing wear of a rotating shaft such as a turborotor 15 and for shutting the main valve of the turbomachine when excessive wear occurs comprises a follower piston 23 which moves to maintain a constant fluid gap between a spring pressed slidable piston nozzle 33 and the rotor 15, a slidable valve member 51 operable by the piston to cut off fluid pressure from supply pipe 75 to either of outlet ports 57a or 57b connected to pairs of pressure operated electric switches 67, 69, either of which pair when actuated by loss of fluid pressure set off alarms and operate solenoids shutting the machine down, and a linear variable differential transformer 63 which is directly attached to the follower piston 23 and translates the movement of rod 63a through a coil into a voltage differential operating an instrument indicating bearing wear. The follower piston 23 balanced by fluid supplied from pipe 73 to pipe 77 and inlet 29a and through a restriction 91 to pipe 81 and inlet 29b, fluid also being supplied to an internal rest chamber 39b via port 41. A micrometer 55 allows the sleeve 53 to be slidably adjusted relative to the valve 51 for calibration. In operation fluid is supplied to balance chambers 27a, 27b and valve 87 is closed so that balancing takes place through the calibrated orifice 91. In order to test the system valve 85 is opened causing only the follower piston 23 to move towards the rotor whilst the nozzle 33 remains stationary. This causes the valve 51 to cover port 57a thereby closing pressure switches 69 and operating the trip. Thereafter valve 85 is closed and valve 87 opened causing an increase in pressure in chamber 27b thereby moving piston 23 and nozzle 33 away from the rotor to move the valve 51 to cover port 57b and close pressure switches 67 so that both trip positions are tested.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US442507A US3861818A (en) | 1974-02-14 | 1974-02-14 | Thrust wear detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1491803A true GB1491803A (en) | 1977-11-16 |
Family
ID=23757062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2759/75A Expired GB1491803A (en) | 1974-02-14 | 1975-01-22 | Device for detecting the axial movement of a rotating shaft |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3861818A (en) |
| JP (1) | JPS5914640B2 (en) |
| CA (1) | CA1027353A (en) |
| CH (1) | CH585894A5 (en) |
| DE (1) | DE2503077A1 (en) |
| FR (1) | FR2261505B1 (en) |
| GB (1) | GB1491803A (en) |
| IT (1) | IT1031362B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2199663A (en) * | 1987-01-07 | 1988-07-13 | Vnii Metrologi Sluzby | Standard gauge sets |
| GB2201264A (en) * | 1987-02-03 | 1988-08-24 | Mannesmann Ag | Monitoring rollers in casting plants |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3989408A (en) * | 1974-05-20 | 1976-11-02 | Westinghouse Electric Corporation | Positioning device for a turbine rotor position sensor |
| US4073184A (en) * | 1977-02-16 | 1978-02-14 | General Electric Company | Shaft axial position monitoring system |
| US4302963A (en) * | 1980-05-12 | 1981-12-01 | General Electric Company | Thrust bearing wear detector positioner |
| DE3204750C2 (en) * | 1982-02-11 | 1984-04-26 | Arthur Pfeiffer Vakuumtechnik Wetzlar Gmbh, 6334 Asslar | Magnetically mounted turbo molecular pump |
| US4762461A (en) * | 1985-12-20 | 1988-08-09 | Ngk Insulators Ltd. | Leakless pump |
| US6657217B2 (en) | 2001-04-10 | 2003-12-02 | York International Corporation | Probe for sensing movement in a compressor system |
| US7207768B2 (en) * | 2005-01-15 | 2007-04-24 | Siemens Power Generation, Inc. | Warning system for turbine component contact |
| US8094006B2 (en) * | 2008-12-23 | 2012-01-10 | Honeywell International Inc. | Portable bearing test device |
| CN103048123A (en) * | 2012-11-30 | 2013-04-17 | 天津大学 | Abrasion tester for cylinder sleeve-piston ring friction pair |
| US10125682B2 (en) | 2013-02-26 | 2018-11-13 | Rolls-Royce Corporation | Methods and apparatus for measuring axial shaft displacement within gas turbine engines |
| CN104634682A (en) * | 2015-01-15 | 2015-05-20 | 江苏师范大学 | Cylinder sleeve piston ring friction pair abrasion test machine |
| CN106052538B (en) * | 2016-06-23 | 2018-08-03 | 国家电网公司 | A kind of water turbine set shafting dynamical system state on-line diagnosing apparatus and method |
| CN111347246B (en) * | 2020-03-30 | 2024-06-25 | 江门市科达仪表有限公司 | A all-in-one for vehicle instrument assembly and detection |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1575993A (en) * | 1924-06-09 | 1926-03-09 | Westinghouse Electric & Mfg Co | Automatic stop for turbines |
| US2888023A (en) * | 1956-04-13 | 1959-05-26 | Gen Electric | Hydraulic thrust bearing wear indicator and safety device |
| US3220244A (en) * | 1963-09-06 | 1965-11-30 | Cooper Bessemer Corp | Thrust bearing wear sensing device |
| US3612710A (en) * | 1970-04-30 | 1971-10-12 | Carrier Corp | Centrifugal refrigerant gas compressor |
-
1974
- 1974-02-14 US US442507A patent/US3861818A/en not_active Expired - Lifetime
- 1974-12-23 CA CA216,874A patent/CA1027353A/en not_active Expired
-
1975
- 1975-01-22 GB GB2759/75A patent/GB1491803A/en not_active Expired
- 1975-01-25 DE DE19752503077 patent/DE2503077A1/en not_active Withdrawn
- 1975-01-29 CH CH103575A patent/CH585894A5/xx not_active IP Right Cessation
- 1975-01-31 IT IT19837/75A patent/IT1031362B/en active
- 1975-02-13 JP JP50017531A patent/JPS5914640B2/en not_active Expired
- 1975-02-14 FR FR7504694A patent/FR2261505B1/fr not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2199663A (en) * | 1987-01-07 | 1988-07-13 | Vnii Metrologi Sluzby | Standard gauge sets |
| GB2201264A (en) * | 1987-02-03 | 1988-08-24 | Mannesmann Ag | Monitoring rollers in casting plants |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2261505B1 (en) | 1978-10-06 |
| CH585894A5 (en) | 1977-03-15 |
| FR2261505A1 (en) | 1975-09-12 |
| DE2503077A1 (en) | 1975-09-18 |
| US3861818A (en) | 1975-01-21 |
| JPS5914640B2 (en) | 1984-04-05 |
| JPS50115311A (en) | 1975-09-09 |
| IT1031362B (en) | 1979-04-30 |
| CA1027353A (en) | 1978-03-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |