GB189740A - - Google Patents
Info
- Publication number
- GB189740A GB189740A GB10533/22A GB1053322A GB189740A GB 189740 A GB189740 A GB 189740A GB 10533/22 A GB10533/22 A GB 10533/22A GB 1053322 A GB1053322 A GB 1053322A GB 189740 A GB189740 A GB 189740A
- Authority
- GB
- United Kingdom
- Prior art keywords
- piston
- regulation
- pressure
- volume
- regulating
- 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
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/02—Surge control
- F04D27/0261—Surge control by varying driving speed
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Braking Arrangements (AREA)
Abstract
189,740. Akt.-Ges. Brown, Boveri, et Cie. Nov. 28, 1921, [Convention date]. Regulating or controlling.-Regulating apparatus, subject to the simultaneous influences of two quantities, one cf which by itself would produce unstable regulation, is caused to operate to produce stable regulation by retarding the action of the said quantity. The arrangement is shown applied to the regulation of a centrifugal compressor. The steam admission valve 5 is operated by the piston 4 under the control of the oil relay 3. The stem of this relay carries the piston 1 responsive to the pressure of the compressor delivery, and the piston 2 responsive to the volume. Between the piston 2 and the volume measuring point 10 is arranged a vessel 7 which is subject to variation of air quantity before the piston 2 is operated. This ensures that the action of the slowly varying pressure is preponderant upon the regulating gear and the regulation is stable. In the modification shown in Fig. 3, the pressure and volume pistons 1, 2 are not connected, and the piston 2 is connected to a retarding device consisting of a piston in an oil brake.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE189740T | 1921-11-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB189740A true GB189740A (en) | 1923-03-08 |
Family
ID=31892912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB10533/22A Expired GB189740A (en) | 1921-11-28 | 1922-04-12 |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB189740A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2529965A1 (en) * | 1982-07-06 | 1984-01-13 | Grundfos As | MOTOR-PUMP GROUP WITH SPEED ADJUSTMENT |
-
1922
- 1922-04-12 GB GB10533/22A patent/GB189740A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2529965A1 (en) * | 1982-07-06 | 1984-01-13 | Grundfos As | MOTOR-PUMP GROUP WITH SPEED ADJUSTMENT |
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