GB1522892A – Electrical control circuit arrangement for operating n electrically energizable units
– Google Patents
GB1522892A – Electrical control circuit arrangement for operating n electrically energizable units
– Google Patents
Electrical control circuit arrangement for operating n electrically energizable units
Info
Publication number
GB1522892A
GB1522892A
GB1528876A
GB1528876A
GB1522892A
GB 1522892 A
GB1522892 A
GB 1522892A
GB 1528876 A
GB1528876 A
GB 1528876A
GB 1528876 A
GB1528876 A
GB 1528876A
GB 1522892 A
GB1522892 A
GB 1522892A
Authority
GB
United Kingdom
Prior art keywords
pump
starting
pumps
pressure
energized
Prior art date
1975-04-15
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
GB1528876A
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.)
GUINARD POMPES
Original Assignee
GUINARD POMPES
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.)
1975-04-15
Filing date
1976-04-14
Publication date
1978-08-31
1976-04-14
Application filed by GUINARD POMPES
filed
Critical
GUINARD POMPES
1978-08-31
Publication of GB1522892A
publication
Critical
patent/GB1522892A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
F04D13/00—Pumping installations or systems
F04D13/12—Combinations of two or more pumps
F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F04—POSITIVE – DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
F04D—NON-POSITIVE-DISPLACEMENT PUMPS
F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
F04D15/02—Stopping of pumps, or operating valves, on occurrence of unwanted conditions
F04D15/029—Stopping of pumps, or operating valves, on occurrence of unwanted conditions for pumps operating in parallel
Abstract
1522892 Automatic control of pressure ETABS POMPES GUINARD 14 April 1976 [15 April 1975] 15288/76 Heading G3R A physical variable e.g. water pressure is maintained at the desired level by varying the number of pumps P 1 -P 3 in response to a pressure detector 1. Pumps P 1 -P 3 are connected between supply lines L 1 and L 2 by starting contacts 8 and also by continuous supply circuits e.g. 13, t 1 , R 1 . A low pressure causes the starting circuits of each pump in turn to be energized by rotation of cams 7 1 -7 3 after which the continuous supply circuits hold the pumps on. A high pressure on the other hand causes timer T to be energized. This cuts out each continuous supply circuit in turn, according to built in delays, via contacts t 1 -t 3 leaving only that pump which happens to have its starting circuit energized, operative as a holding pump. A timer T’ ensures that the pump starting cams 7 1 -7 3 always come to rest in such a position that when they are next rotated a pump will be started immediately.
GB1528876A
1975-04-15
1976-04-14
Electrical control circuit arrangement for operating n electrically energizable units
Expired
GB1522892A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
FR7511625A
FR2307993A1
(en)
1975-04-15
1975-04-15
INSTALLATION OF A BOOSTER, ESPECIALLY FOR THE DISTRIBUTION OF WATER IN BUILDINGS
Publications (1)
Publication Number
Publication Date
GB1522892A
true
GB1522892A
(en)
1978-08-31
Family
ID=9153927
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB1528876A
Expired
GB1522892A
(en)
1975-04-15
1976-04-14
Electrical control circuit arrangement for operating n electrically energizable units
Country Status (5)
Country
Link
DE
(1)
DE2616549C3
(en)
ES
(1)
ES446960A1
(en)
FR
(1)
FR2307993A1
(en)
GB
(1)
GB1522892A
(en)
IT
(1)
IT1080741B
(en)
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
EP2538084A3
(en)
*
2011-06-23
2018-07-18
General Electric Company
Validation of working fluid parameter indicator sensitivity in system with centrifugal machines
Families Citing this family (3)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
FR2353730A1
(en)
*
1976-04-09
1977-12-30
Pumpex Production Ab
Hydrodynamic pumping set control system – gives continuously variable output dependent on value detected by feeler
DE102010055841A1
(en)
*
2010-12-23
2012-06-28
Wilo Se
Method for operating a double pump or multi-pump unit
CN114411882A
(en)
*
2022-02-10
2022-04-29
中国电建集团贵阳勘测设计研究院有限公司
Pump station arrangement structure based on small flow and large lift amplitude
Family Cites Families (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
FR2165138A5
(en)
*
1971-12-20
1973-08-03
Laks Maurice
1975
1975-04-15
FR
FR7511625A
patent/FR2307993A1/en
active
Granted
1976
1976-04-13
IT
IT1258176A
patent/IT1080741B/en
active
1976-04-13
ES
ES446960A
patent/ES446960A1/en
not_active
Expired
1976-04-14
DE
DE19762616549
patent/DE2616549C3/en
not_active
Expired
1976-04-14
GB
GB1528876A
patent/GB1522892A/en
not_active
Expired
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
EP2538084A3
(en)
*
2011-06-23
2018-07-18
General Electric Company
Validation of working fluid parameter indicator sensitivity in system with centrifugal machines
Also Published As
Publication number
Publication date
DE2616549B2
(en)
1977-12-08
FR2307993A1
(en)
1976-11-12
IT1080741B
(en)
1985-05-16
ES446960A1
(en)
1977-06-01
DE2616549A1
(en)
1976-10-21
FR2307993B1
(en)
1978-09-01
DE2616549C3
(en)
1978-08-03
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Legal Events
Date
Code
Title
Description
1979-01-10
PS
Patent sealed
1981-11-18
PCNP
Patent ceased through non-payment of renewal fee
