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1. US4629116 - Power saving thermal carrier circulating pump particularly for heat pump heating systems

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United States of America
Application Number 06817778
Application Date 10.01.1986
Publication Number 4629116
Publication Date 16.12.1986
Grant Number 4629116
Grant Date 16.12.1986
Publication Kind A
IPC
F24D 3/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
3Hot-water central heating systems
F04D 15/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
DNON-POSITIVE-DISPLACEMENT PUMPS
15Control, e.g. regulation, of pumps, pumping installations, or systems
F04D 29/04
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
DNON-POSITIVE-DISPLACEMENT PUMPS
29Details, component parts, or accessories
04Shafts or bearings, or assemblies thereof
F04D 29/046
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
DNON-POSITIVE-DISPLACEMENT PUMPS
29Details, component parts, or accessories
04Shafts or bearings, or assemblies thereof
046Bearings
F24D 19/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
19Details
F24D 19/10
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
19Details
10Arrangement or mounting of control or safety devices
CPC
F04D 29/0467
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
DNON-POSITIVE-DISPLACEMENT PUMPS
29Details, component parts, or accessories
04Shafts or bearings, or assemblies thereof
046Bearings
0467Spherical bearings
F04D 15/0066
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
DNON-POSITIVE-DISPLACEMENT PUMPS
15Control, e.g. regulation, of pumps, pumping installations or systems
0066by changing the speed, e.g. of the driving engine
F24D 19/1012
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
19Details
10Arrangement or mounting of control or safety devices
1006for water heating systems
1009for central heating
1012by regulating the speed of a pump
G05D 16/2066
GPHYSICS
05CONTROLLING; REGULATING
DSYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
16Control of fluid pressure
20characterised by the use of electric means
2006with direct action of electric energy on controlling means
2066using controlling means acting on the pressure source
G05D 23/1913
GPHYSICS
05CONTROLLING; REGULATING
DSYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
23Control of temperature
19characterised by the use of electric means
1906using an analogue comparing device
1913delivering a series of pulses
G05D 23/24
GPHYSICS
05CONTROLLING; REGULATING
DSYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
23Control of temperature
19characterised by the use of electric means
20with sensing elements having variation of electric or magnetic properties with change of temperature
24the sensing element having a resistance varying with temperature, e.g. a thermistor
Applicants LAING KARSTEN
LAING OLIVER
Inventors Laing Karsten
Laing Oliver
Agents Hill, Van Santen, Steadman & Simpson
Priority Data 3210641 23.03.1982 DE
Title
(EN) Power saving thermal carrier circulating pump particularly for heat pump heating systems
front page image
Abstract
(EN)

An electric-motor-driven circulating pump for heating systems reduces power consumption of the motor, whereby the reduction ensues by means of periodic interruption of a line feed by means of electronic switch means so that switch-on and pause intervals follow one another. The switch means interrupt or close current flow at a zero-axis crossing of the voltage of the line feed.
Related patent documents
DE000003210641
EP0104209
WO/1983/003461
AT31805
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