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1. SE456273 - Hydraulic actuator for chimney damper of oil fired heating unit

Office
Sweden
Application Number 8101537
Application Date 11.03.1981
Publication Number 456273
Publication Date 12.09.1982
Grant Number 456273
Grant Date 19.09.1988
Publication Kind B
IPC
F23N 3/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23COMBUSTION APPARATUS; COMBUSTION PROCESSES
NREGULATING OR CONTROLLING COMBUSTION
3Regulating air supply or draught
F23N 5/18
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23COMBUSTION APPARATUS; COMBUSTION PROCESSES
NREGULATING OR CONTROLLING COMBUSTION
5Systems for controlling combustion
18using detectors sensitive to rate of flow of air or fuel
G05D
GPHYSICS
05CONTROLLING; REGULATING
DSYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
CPC
F23N 3/087
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23COMBUSTION APPARATUS; COMBUSTION PROCESSES
NREGULATING OR CONTROLLING COMBUSTION
3Regulating air supply or draught
08by power-assisted systems
087using mechanical means
F23N 2235/04
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23COMBUSTION APPARATUS; COMBUSTION PROCESSES
NREGULATING OR CONTROLLING COMBUSTION
2235Valves, nozzles or pumps
02Air or combustion gas valves or dampers
04in stacks
F23N 2235/10
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23COMBUSTION APPARATUS; COMBUSTION PROCESSES
NREGULATING OR CONTROLLING COMBUSTION
2235Valves, nozzles or pumps
02Air or combustion gas valves or dampers
10power assisted, e.g. using electric motors
F23N 2239/04
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23COMBUSTION APPARATUS; COMBUSTION PROCESSES
NREGULATING OR CONTROLLING COMBUSTION
2239Fuels
04Gaseous fuels
F23N 2239/06
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23COMBUSTION APPARATUS; COMBUSTION PROCESSES
NREGULATING OR CONTROLLING COMBUSTION
2239Fuels
06Liquid fuels
F23N 2241/04
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23COMBUSTION APPARATUS; COMBUSTION PROCESSES
NREGULATING OR CONTROLLING COMBUSTION
2241Applications
04Heating water
Applicants NILSSON SVEN ARNE
Inventors NILSSON SVEN ARNE
Priority Data 8101537 11.03.1981 SE
Title
(EN) Hydraulic actuator for chimney damper of oil fired heating unit
(SV) ANORDNING FOR INSTELLNING AV EN RORLIG ENHET, FORETREDESVIS ETT ROKGASSPJELL
Abstract
(EN)
The opening of the chimney damper in an oil fired heating furnace is controlled by a hydraulic cylinder acting against a spring to open the damper. The hydraulic cylinder is supplied through a hydraulic line from a power cylinder using a non-flammable working fluid. The power cylinder has a free piston with the non-flammable fluid above and oil from the burner oil pump below. The burner oil pump is motor driven from the electrical mains through a regulator and draws oil from a tank, delivering the oil to a burner and to the damper power cylinder. Oil is taken away from the power cylinder by a valve operated by the thermostat for the heater. The thermostat and a pyrostat control the operation of the oil pump motor.