GB811799A - Improvements in or relating to compressor or exhauster drives - Google Patents
Improvements in or relating to compressor or exhauster drivesInfo
- Publication number
- GB811799A GB811799A GB2144056A GB2144056A GB811799A GB 811799 A GB811799 A GB 811799A GB 2144056 A GB2144056 A GB 2144056A GB 2144056 A GB2144056 A GB 2144056A GB 811799 A GB811799 A GB 811799A
- Authority
- GB
- United Kingdom
- Prior art keywords
- speed
- compressor
- exhauster
- shaft
- july
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/02—Arrangements of pumps or compressors, or control devices therefor
Abstract
811,799. Automatic speed control systems. GRESHAM & CRAVEN Ltd., MARSH, G. C., and HUNTER, I. P. July 10, 1957 [July 11, 1956], No. 21440/56. Class 38 (4). The speed of a braking compressor or exhauster 20, Fig. 1, driven by the main diesel engine 24 of a locomotive is maintained constant by a steplessly variable speed-changing gearbox 21, which is controlled by an electrical servomotor 23 responsive to a speed-sensitive device 26 and arrangements are provided whereby the gear-box is returned to its lowest ratio on shut down. Relays which control the servomotor and are housed in a unit 29 may be switched by change-over switch 27 to maintain the compressor or exhauster at one of two predetermined speeds. The driven shaft 1, Fig. 2, which causes permanent magnets 4 to rotate within soft iron laminations 5, generates eddy currents in an aluminium cup 6 to rotate a shaft 8 carrying relay operating contacts 9 to a position indicative of the speed of shaft 1 determined by a counter torque spiral spring 7. Increase and decrease speed relays are connected to insulated contact segments in the housing, separate pairs of segments being provided for the alternative speeds. The gear-box is returned to its lowest ratio on shut down by the action of spring 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2144056A GB811799A (en) | 1956-07-11 | 1956-07-11 | Improvements in or relating to compressor or exhauster drives |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2144056A GB811799A (en) | 1956-07-11 | 1956-07-11 | Improvements in or relating to compressor or exhauster drives |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB811799A true GB811799A (en) | 1959-04-15 |
Family
ID=10162995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2144056A Expired GB811799A (en) | 1956-07-11 | 1956-07-11 | Improvements in or relating to compressor or exhauster drives |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB811799A (en) |
-
1956
- 1956-07-11 GB GB2144056A patent/GB811799A/en not_active Expired
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