AT395210B - Gas pressure control valve for gas heated equipment - Google Patents

Gas pressure control valve for gas heated equipment Download PDF

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Publication number
AT395210B
AT395210B AT0325387A AT325387A AT395210B AT 395210 B AT395210 B AT 395210B AT 0325387 A AT0325387 A AT 0325387A AT 325387 A AT325387 A AT 325387A AT 395210 B AT395210 B AT 395210B
Authority
AT
Austria
Prior art keywords
valve
gas
actuator
membrane
pressure
Prior art date
Application number
AT0325387A
Other languages
German (de)
Other versions
ATA325387A (en
Original Assignee
Vaillant Gmbh
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.)
Filing date
Publication date
Application filed by Vaillant Gmbh filed Critical Vaillant Gmbh
Priority to AT0325387A priority Critical patent/AT395210B/en
Publication of ATA325387A publication Critical patent/ATA325387A/en
Application granted granted Critical
Publication of AT395210B publication Critical patent/AT395210B/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23NREGULATING OR CONTROLLING COMBUSTION
    • F23N1/00Regulating fuel supply
    • F23N1/007Regulating fuel supply using mechanical means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23NREGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00Valves, nozzles or pumps
    • F23N2235/12Fuel valves
    • F23N2235/18Groups of two or more valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23NREGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00Valves, nozzles or pumps
    • F23N2235/12Fuel valves
    • F23N2235/20Membrane valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23NREGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00Valves, nozzles or pumps
    • F23N2235/12Fuel valves
    • F23N2235/24Valve details

Claims (1)

  1. AT 395 210 B The invention relates to a gas pressure regulating valve for gas-heated devices, for example gas water heaters, with an actuator which adjusts a valve body and acts force-fittingly on a tappet which specifies a spring-set pressure value. From the US-PS 4 650 156 a flow control valve has become known that is driven by a sealed motor 5. Here, the valve seat arranged in a housing is assigned a threaded spindle-like valve body which is directly connected to the rotor of the engine. It follows from this that the valve body sits on the valve seat with a combined translatory and rotary movement, which will certainly lead to leaks in the valve over time. Gas valves for gas-heated devices are often designed as servo valves. The task here is to control the servo valve of the gas pressure regulator as free of hysteresis as possible. It is an object of the present invention to be able to carry out the coupling between the control signals of an electronic controller and the position of the valve more precisely and faster than before. According to the invention it is provided to achieve the object that this actuator is designed for its axial adjustment, at least in some areas, as a threaded spindle and is mounted in a motor-rotatable threaded nut 15, which represents the rotor of a motor which can be rotated in steps by pulses from a digital control. This configuration makes it possible to keep a rotary movement away from the valve body, since the threaded spindle is only moved in translation by the rotating nut. The setting is therefore considerably more precise and also less wear-free, since the end of the actuator only touches a part which has another function and does not ride on it. For the gas pressure regulator of a gas-heated device, this results in high positioning accuracy and a clear, reliable and exactly reproducible function of the actuator. The only drawing figure shows, for example, the gas supply to a gas burner schematically. The gas supply line (1) leads to the main gas valve (4) via a gas screen (2) and a differential pressure circuit (3) of known type 25. A chamber (7) connects to this gas supply line (1) via a filter (5) and a pre-nozzle (6), from which ignition gas can flow into the membrane chamber (10) of the membrane (8) via a valve (9). In the opposite membrane chamber (11), which has a breathing nozzle (13), a compression spring (14), which is supported against a valve disk (15), presses against the membrane (8). The membrane (8) is connected to the aforementioned valve (9) via the shaft (12). 30 On the valve plate (15), the stem (16) of the valve body (17) attaches, which is supported by a spring (18) against the housing (19) of the valve. The tappet, which embodies part of an actuator (20), which is at least partially designed as a threaded spindle (22) and is mounted in a threaded nut (23) which can be driven as a rotor by means of the motor (21), presses against this valve body (17). The motor (21) for driving this rotor can be gradually rotated by the pulses of a digital control, the number of pulses determining the travel of the actuator. The servomotor therefore provides a hysteresis-free axial travel as a function of a coded control voltage. The function of this valve or actuator results from this as follows: The threaded spindle (22) of the actuator (20) acts on the spring (14) in the servo controller stage via the tappet. 40 The gas pressure regulator compensates for the pressure on the “setpoint” side da1 membrane (8) in the membrane chamber (11) by changing the pressure on the “actual” side of this membrane in the chamber (10), the initial pressure of the Gas regulator corresponding pressure, which is changed by opening and closing the main gas valve (4). The servomotor (21) performs a rotary movement predetermined by an electronic controller, which from there 45 spindle of the actuator (20) is converted into an axial movement and transmitted to the spring (14). Depending on its characteristic, this spring (14) exerts a force on the membrane (8). In addition to the pressure prevailing in the kamma (11) of the membrane (8), this force, based on the area of the membrane, acts as a setpoint pressure for the gas pressure regulator. 50 PATENT CLAIM Gas pressure control valve for gas-fired devices, for example gas water heaters, with a valve body that diverges a valve body and acts on a spring-actuated plunger that specifies a pressure setpoint force-acting -2- 55 AT 395 210 B actuator, characterized in that this actuator (20) for its axial adjustment, at least in some areas, is designed as a threaded spindle (22) and is mounted in a motor-rotatable threaded nut (23) which represents the rotor of a motor (21) which can be rotated in steps by pulses from a digital control. For this 1 sheet drawing -3-
AT0325387A 1987-12-11 1987-12-11 Gas pressure control valve for gas heated equipment AT395210B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT0325387A AT395210B (en) 1987-12-11 1987-12-11 Gas pressure control valve for gas heated equipment

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
AT0325387A AT395210B (en) 1987-12-11 1987-12-11 Gas pressure control valve for gas heated equipment
CH4434/88A CH676387A5 (en) 1987-12-11 1988-11-30
FR888816108A FR2624586B1 (en) 1987-12-11 1988-12-06 Preferred valve for regulating the gas pressure of gas-fired appliances
BE8801380A BE1002632A6 (en) 1987-12-11 1988-12-08 Valve, preferably valve for regulating the pressure of gas appliances.
NL8803029A NL8803029A (en) 1987-12-11 1988-12-09 Valve, preferred control valve for controlling the gas pressure of gas heaters.
DE3841816A DE3841816A1 (en) 1987-12-11 1988-12-12 Valve, preferably a control valve for regulating the gas pressure in gas-heated appliances

Publications (2)

Publication Number Publication Date
ATA325387A ATA325387A (en) 1992-02-15
AT395210B true AT395210B (en) 1992-10-27

Family

ID=3547725

Family Applications (1)

Application Number Title Priority Date Filing Date
AT0325387A AT395210B (en) 1987-12-11 1987-12-11 Gas pressure control valve for gas heated equipment

Country Status (6)

Country Link
AT (1) AT395210B (en)
BE (1) BE1002632A6 (en)
CH (1) CH676387A5 (en)
DE (1) DE3841816A1 (en)
FR (1) FR2624586B1 (en)
NL (1) NL8803029A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT399765B (en) * 1990-02-02 1995-07-25 Vaillant Gmbh Gas pressure regulator
IT1253075B (en) * 1991-09-20 1995-07-10 Giuliano Spaggiari Device for automatically calibrate the gas flow regulating valves for burners of gas cookers for domestic use
IT1308112B1 (en) * 1999-03-23 2001-11-29 Sit La Precisa S R L Ora Sit L A valve assembly for regulating the flow rate of a gascombustibile.
DE29908510U1 (en) * 1999-05-12 2000-09-21 Honeywell Ag Pilot valve
EP1146288A1 (en) * 2000-04-13 2001-10-17 Cybertech Ventures, Inc. Proportional control gas valve

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4650156A (en) * 1984-05-30 1987-03-17 Fuji Koki Manufacturing Co., Ltd. Sealed type motor-operated flow control valve

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1550321B2 (en) * 1966-11-12 1972-07-27 Pressure valve with electric drive
DE6608448U (en) * 1966-11-12 1971-10-21 Hans Schiedrum Maschinenfabrik Flow valve.
DE2038865A1 (en) * 1970-08-05 1972-02-10 Messer Griesheim Gmbh Electromagnetically actuated precision control valve
DE7604336U1 (en) * 1976-02-14 1976-07-15 Varsek, Zdenko, Dipl.-Ing., 7500 Karlsruhe valve device
DE2909876C2 (en) * 1979-03-10 1983-10-20 Joh. Vaillant Gmbh U. Co, 5630 Remscheid, De
DE3007215C2 (en) * 1979-03-10 1983-11-10 Joh. Vaillant Gmbh U. Co, 5630 Remscheid, De
US4382578A (en) * 1979-05-17 1983-05-10 Autoclave Engineers, Inc. Magnetically actuated rising stem valve
DE3000669C2 (en) * 1980-01-10 1985-12-12 Joh. Vaillant Gmbh U. Co, 5630 Remscheid, De
DE3015980A1 (en) * 1980-04-25 1981-11-05 Honeywell Bv Gas pressure regulator
US4393319A (en) * 1980-12-08 1983-07-12 General Motors Corporation Electric motor powered actuator
DE3146590C2 (en) * 1981-11-25 1983-12-08 Karl Dungs Gmbh & Co, 7067 Urbach, De
DE3345561C2 (en) * 1983-12-16 1993-02-04 Gastechnic Produktions- Und Vertriebs-Gmbh, 7541 Straubenhardt, De
US4609176A (en) * 1984-04-20 1986-09-02 Badger Meter, Inc. Fluid flow control system with pulse driven electric control valve
DE8421412U1 (en) * 1984-07-13 1984-10-11 Joh. Vaillant Gmbh U. Co, 5630 Remscheid, De Gas pressure regulator
JPS6184715A (en) * 1984-10-02 1986-04-30 Tlv Co Ltd Automatic setting reducing valve
JPS62136680U (en) * 1986-02-21 1987-08-28

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4650156A (en) * 1984-05-30 1987-03-17 Fuji Koki Manufacturing Co., Ltd. Sealed type motor-operated flow control valve

Also Published As

Publication number Publication date
ATA325387A (en) 1992-02-15
DE3841816A1 (en) 1990-07-19
NL8803029A (en) 1989-07-03
FR2624586A1 (en) 1989-06-16
CH676387A5 (en) 1991-01-15
BE1002632A6 (en) 1991-04-16
FR2624586B1 (en) 1991-11-22

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Legal Events

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ELJ Ceased due to non-payment of the annual fee