CH503907A - Device for the automatic prevention of the liquid pumping of a centrifugal pump when running backwards - Google Patents

Device for the automatic prevention of the liquid pumping of a centrifugal pump when running backwards

Info

Publication number: CH503907A
Authority: CH; Switzerland
Prior art keywords: centrifugal pump; liquid pumping; running backwards; automatic prevention; prevention
Prior art date: 1968-07-13

Application number

CH778869A

Other languages

German (de)

Inventor

Schoenwald Siegfried

Original Assignee

Siemens Ag

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.)

1968-07-13

Filing date

1969-05-22

Publication date

1971-02-28

1968-07-13 Priority claimed from DE19681703815 external-priority patent/DE1703815C/en

1968-07-13 Priority claimed from DE6600523U external-priority patent/DE6600523U/en

1969-05-22 Application filed by Siemens Ag filed Critical Siemens Ag

1971-02-28 Publication of CH503907A publication Critical patent/CH503907A/en

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
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/46—Fluid-guiding means, e.g. diffusers adjustable
- F04D29/48—Fluid-guiding means, e.g. diffusers adjustable for unidirectional fluid flow in reversible pumps
- F04D29/486—Fluid-guiding means, e.g. diffusers adjustable for unidirectional fluid flow in reversible pumps especially adapted for liquid pumps
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
- A47L15/4225—Arrangements or adaption of recirculation or discharge 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
- F04D15/0027—Varying behaviour or the very pump
- F04D15/0044—Varying behaviour or the very pump by introducing a gas
- 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
- F04D15/0077—Safety measures

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Physics & Mathematics (AREA)
Fluid Mechanics (AREA)
Water Supply & Treatment (AREA)
Structures Of Non-Positive Displacement Pumps (AREA)

CH778869A 1968-07-13 1969-05-22 Device for the automatic prevention of the liquid pumping of a centrifugal pump when running backwards CH503907A (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE19681703815 DE1703815C (en)		1968-07-13	Device to automatically stop the liquid pumping of a radial centrifugal pump when running backwards
DE6600523U DE6600523U (en)	1968-07-13	1968-07-13	AUTONOMOUS DISABLING OF THE FLUID PUMPING OF A CENTRIFUGAL PUMP WHEN REVERSING

Publications (1)

Publication Number	Publication Date
CH503907A true CH503907A (en)	1971-02-28

Family

ID=25754678

Family Applications (2)

Application Number	Title	Priority Date	Filing Date
CH778869A CH503907A (en)	1968-07-13	1969-05-22	Device for the automatic prevention of the liquid pumping of a centrifugal pump when running backwards
CH807469A CH492880A (en)	1968-07-13	1969-05-28	Device for the automatic prevention of the liquid transport of a centrifugal pump when running backwards

Family Applications After (1)

Application Number	Title	Priority Date	Filing Date
CH807469A CH492880A (en)	1968-07-13	1969-05-28	Device for the automatic prevention of the liquid transport of a centrifugal pump when running backwards

Country Status (6)

Country	Link
US (1)	US3659955A (en)
CH (2)	CH503907A (en)
FR (1)	FR2014590A1 (en)
GB (2)	GB1217460A (en)
NL (1)	NL6909152A (en)
SE (1)	SE354689B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE3929758C2 (en) *	1989-09-07	1994-11-17	Klein Schanzlin & Becker Ag	Centrifugal pump housing in sheet metal construction
TWI464322B (en) *	2010-12-14	2014-12-11	Delta Electronics Inc	Centrifugal fan
CN103267018A (en) *	2013-06-03	2013-08-28	高邮市高农机械配件有限公司	Internal combustion engine cooling water pump water suction chamber runner

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US1783667A (en) *	1930-01-28	1930-12-02	Deming Co	Centrifugal pump
US2050523A (en) *	1935-07-08	1936-08-11	Edward A Freed	Fan
FR861453A (en) *	1938-11-18	1941-02-10	Masch Fabrikburckhardt A G	Rotary impeller pump with liquid ring for simultaneous movement of gas and liquid
US2291138A (en) *	1939-01-05	1942-07-28	Bingham Pump Company Inc	Centrifugal pump
US2566892A (en) *	1949-09-17	1951-09-04	Gen Electric	Turbine type pump for hydraulic governing systems
US2808780A (en) *	1952-10-07	1957-10-08	Philips Corp	Rotary pump
US3040663A (en) *	1959-12-30	1962-06-26	Gen Electric	Two-way valveless pump
US3134386A (en) *	1963-01-24	1964-05-26	Gen Electric	Washing machine with selectively variable washing action
US3244105A (en) *	1963-03-26	1966-04-05	Gen Motors Corp	Pump for a domestic appliance
NL291870A (en) *	1963-04-23	1965-07-12	Philips Nv	Centrifugal pump suitable for pumping boiling liquids
US3259072A (en) *	1964-10-26	1966-07-05	Gen Motors Corp	Rotary fuel pump

1969
- 1969-05-22 CH CH778869A patent/CH503907A/en not_active IP Right Cessation
- 1969-05-28 CH CH807469A patent/CH492880A/en unknown
- 1969-06-16 NL NL6909152A patent/NL6909152A/xx unknown
- 1969-07-11 GB GB35177/69A patent/GB1217460A/en not_active Expired
- 1969-07-11 SE SE09880/69A patent/SE354689B/xx unknown
- 1969-07-11 GB GB35178/69A patent/GB1213448A/en not_active Expired
- 1969-07-11 FR FR6923876A patent/FR2014590A1/fr not_active Withdrawn
- 1969-07-14 US US841299A patent/US3659955A/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
FR2014590A1 (en)	1970-04-17
SE354689B (en)	1973-03-19
GB1217460A (en)	1970-12-31
US3659955A (en)	1972-05-02
CH492880A (en)	1970-06-30
DE1703815A1 (en)	1972-03-09
NL6909152A (en)	1970-01-15
DE1703815B2 (en)	1972-09-21
GB1213448A (en)	1970-11-25

Publication	Publication Date	Title
FR2003743A1 (en)	1969-11-14	INDUCER DEVICE FOR CENTRIFUGAL PUMPS
NL145021B (en)	1975-02-17	LIQUID PUMP.
FI51632C (en)	1977-02-10	A pump assembly that includes a fluid reservoir in which a unit of pump and drive motor is located in the reservoir below a normal fluid level.
AT255912B (en)	1967-07-25	Dirty water centrifugal pump
CH496174A (en)	1970-09-15	centrifugal pump
CH516088A (en)	1971-11-30	Liquid pump
SU522818A3 (en)	1976-07-25	Centrifugal pump
DE6601037U (en)	1969-02-20	WASHING MACHINE OR DISHWASHER WITH A SAFETY DEVICE FOR MAINTAINING A CERTAIN FLUID LEVEL
CH499726A (en)	1970-11-30	Centrifugal pump for pumping liquids with suspended solids
NL162305C (en)	1980-05-16	BELOW PUMP.
CH503907A (en)	1971-02-28	Device for the automatic prevention of the liquid pumping of a centrifugal pump when running backwards
CH523428A (en)	1972-05-31	Centrifugal pump
AT313066B (en)	1974-01-25	centrifugal pump
AT303534B (en)	1972-11-27	centrifugal pump
CH521596A (en)	1972-04-15	Automatic liquid scintillation counter
CH485118A (en)	1970-01-31	Fluid pump
CH516086A (en)	1971-11-30	Centrifugal pump
CH508171A (en)	1971-05-31	Oil pump device
FI51009C (en)	1976-09-10	Liquid ring pump.
FI50732C (en)	1976-06-10	Liquid ring pump.
AT302745B (en)	1972-10-25	Liquid pump
AT305038B (en)	1973-02-12	centrifugal pump
DK123373B (en)	1972-06-12	Device for automatic prevention of liquid transport in a centrifugal pump when reversing.
DK123731B (en)	1972-07-24	Centrifugal pump.
CH408558A (en)	1966-02-28	Automatic lubrication pump

Legal Events

Date	Code	Title	Description
1975-12-31	PL	Patent ceased