IT1252337B - Controllable operating equipment - Google Patents
Controllable operating equipmentInfo
- Publication number
- IT1252337B IT1252337B ITMI913201A ITMI913201A IT1252337B IT 1252337 B IT1252337 B IT 1252337B IT MI913201 A ITMI913201 A IT MI913201A IT MI913201 A ITMI913201 A IT MI913201A IT 1252337 B IT1252337 B IT 1252337B
- Authority
- IT
- Italy
- Prior art keywords
- operating equipment
- motor
- controllable operating
- speed
- output
- Prior art date
Links
- 239000012530 fluid Substances 0.000 abstract 2
Landscapes
- Control Of Velocity Or Acceleration (AREA)
Abstract
The speed of a fluid motor 1 is controlled according to the speed of a controllable electric motor 7. A differential gear 9 has two inputs 11 and 14 which are connected to rotating outputs 8 and 3 of the motors 7 and 1 respectively and has an output 16 which moves when the effective value of the ratio between the speeds of the outputs 8 and 3 deviates from a predetermined value. The output 16 operates a valve element 19 in such a way that the supply of fluid to the motor 1 is varied to oppose any deviation from the said predetermined value. <IMAGE>
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI913201A IT1252337B (en) | 1991-11-29 | 1991-11-29 | Controllable operating equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI913201A IT1252337B (en) | 1991-11-29 | 1991-11-29 | Controllable operating equipment |
Publications (3)
Publication Number | Publication Date |
---|---|
ITMI913201A0 ITMI913201A0 (en) | 1991-11-29 |
ITMI913201A1 ITMI913201A1 (en) | 1993-05-29 |
IT1252337B true IT1252337B (en) | 1995-06-08 |
Family
ID=11361222
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ITMI913201A IT1252337B (en) | 1991-11-29 | 1991-11-29 | Controllable operating equipment |
Country Status (1)
Country | Link |
---|---|
IT (1) | IT1252337B (en) |
-
1991
- 1991-11-29 IT ITMI913201A patent/IT1252337B/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
ITMI913201A1 (en) | 1993-05-29 |
ITMI913201A0 (en) | 1991-11-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE3272169D1 (en) | Machine, especially an electric drilling machine | |
DE3876781D1 (en) | CONTINUOUSLY ADJUSTABLE DRIVE. | |
CA2054556A1 (en) | High speed whirlpool pump | |
CA2060354A1 (en) | Ac motor drive system | |
GB2053405B (en) | Power transmission having power take-off shaft and fluid control means therefore | |
AU4187889A (en) | Transmission ratio changing apparatus and method | |
MY102545A (en) | Planetary steering differential | |
CA2286083A1 (en) | Fan cooler | |
GB8406643D0 (en) | Power generating equipment | |
SE8003032L (en) | DEVICE AND PROCEDURE FOR GENERATING SIGNALS PROPORTIONAL TO THE DIRECTION FLOW IN AN AC MOTOR | |
KR960003056A (en) | Drive system with gearhead motor system | |
IT1252337B (en) | Controllable operating equipment | |
JPS55141998A (en) | Apparatus for equalizing speeds of synchronous motors | |
DE69419864D1 (en) | Fluid machine with induction motor | |
JPS57132789A (en) | Speed controlling device for motor | |
JPS63206195A (en) | Inverter power source drive motor | |
JPS5775597A (en) | Electronic damper for pulse motor | |
JPS57192654A (en) | Stepless speed change gear | |
JPS5558787A (en) | Dc-motor drive control device | |
DE2960704D1 (en) | Electronic blocking device for direct current motors | |
SE8705129D0 (en) | ELECTROMECHANICAL DRIVE DEVICE | |
SE8602754D0 (en) | SET AND DEVICE FOR CONTROL OF ASYCHRON MOTORS | |
JPS5785599A (en) | Driving method for pulse motor | |
JPS5718840A (en) | Power take-off device using motor | |
JPS5583402A (en) | Mobile power supply car |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
0001 | Granted | ||
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19941128 |