EP3043114A1 - Soupape de regulation - Google Patents

Soupape de regulation Download PDF

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Publication number
EP3043114A1
EP3043114A1 EP15197534.9A EP15197534A EP3043114A1 EP 3043114 A1 EP3043114 A1 EP 3043114A1 EP 15197534 A EP15197534 A EP 15197534A EP 3043114 A1 EP3043114 A1 EP 3043114A1
Authority
EP
European Patent Office
Prior art keywords
valve device
valve
control valve
throttle element
valve seat
Prior art date
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.)
Granted
Application number
EP15197534.9A
Other languages
German (de)
English (en)
Other versions
EP3043114B1 (fr
Inventor
Ricardo Carranca
Pedro Guerreiro
Andre Ferreira
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.)
Bosch Termotechnologia SA
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP3043114A1 publication Critical patent/EP3043114A1/fr
Application granted granted Critical
Publication of EP3043114B1 publication Critical patent/EP3043114B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N1/00—Regulating fuel supply
    • F23N1/005—Regulating fuel supply using electrical or electromechanical means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00—Valves, nozzles or pumps
    • F23N2235/12—Fuel valves
    • F23N2235/14—Fuel valves electromagnetically operated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00—Valves, nozzles or pumps
    • F23N2235/12—Fuel valves
    • F23N2235/24—Valve details

Definitions

  • the invention relates to a control valve device according to the preamble of patent claim 1.
  • a control valve device for a gaseous fluid comprises a throttle element, a valve seat, an actuator unit and a spring element.
  • the actuator unit is provided to move the throttle element relative to the valve seat.
  • the spring element is provided to act on the throttle element with a force directed in the direction of the valve seat.
  • the invention relates to a control valve device, in particular for at least one gaseous fluid, having at least one throttle element, at least one valve seat, a preferably electromagnetic actuator unit which is provided to move the at least one throttle element in at least one operating state relative to the at least one valve seat , And with at least one spring element, which is provided to pressurize the at least one throttle element with a directed at least substantially in the direction of the at least one valve seat force.
  • the at least one spring element has a spring constant of at most 0.5 N / mm, advantageously of not more than 0.4 N / mm, particularly advantageously of at most 0.3 N / mm, preferably of at most 0.2 N / mm and more preferably of at most 0.1 N / mm.
  • a "control valve device” is to be understood in this context in particular as a valve device which is provided to adjust, in at least one operating state, in particular a volumetric flow and / or pressure of a fluid flowing into the control valve device and / or flowing through the control device, in particular gaseous fluid, and / or to regulate.
  • By “provided” is intended to be understood in particular specially programmed, designed and / or equipped.
  • a "throttle element” is to be understood in this context, in particular, an element whose position and / or orientation and / or shape, in particular as a function of at least one controlled variable in particular is actively changed.
  • a "valve seat” should be understood to mean in particular a cooperating with the at least one throttle element and / or preferably corresponding element with a contact surface for the at least one throttle element, which in particular at least one recess which at least partially a flow path for the at least one Fluid forms, limited in the circumferential direction.
  • the actuator unit is designed as a particular electrical and / or electromagnetic and / or pneumatic and / or hydraulic unit, which is provided to generate at least one particular linear movement.
  • the control valve device has at least one valve tappet, which is provided to transmit a generated by the at least one actuator unit in particular linear movement on the at least one throttle element and to pivot and / or deform this and / or preferably in particular to move linearly.
  • the at least one valve tappet is advantageously designed in one piece with the at least one throttle element.
  • in one piece is intended to be connected in particular at least materially, for example by a Welding process and / or bonding process, etc., and be understood particularly advantageous molded, such as by the production of a cast and / or by the production in a one- or multi-component injection molding process.
  • pivoting and / or deforming and / or preferably a method of the at least one throttle element relative to the at least one valve seat at least one gap between the at least one throttle element and the at least one valve seat is enlarged and / or minimized and / or at least substantially complete closable.
  • a “spring element” is to be understood in particular to be an element which has at least one extension which in a normal operating state can be elastically changed by at least 10%, in particular by at least 20%, preferably by at least 30% and particularly advantageously by at least 50%, and which in particular produces a counterforce dependent on a change in extension and preferably proportional to the change, which counteracts the change.
  • An “extension” of an element should, in particular, be understood to mean a maximum distance between two points of a vertical projection of the element onto a plane.
  • the at least one spring element is designed as a helical spring, in particular as a helical torsion spring, in particular as a compression spring.
  • the at least one spring element acts on the at least one throttle element with a force directed at least substantially in the direction of the at least one valve seat
  • the at least one throttle element in at least one operating state in particular by a spring force of at least 1 N, advantageously of at least 1.5 N, particularly advantageously of at least 2 N and preferably of at least 2.5 N of the at least one spring element in the direction of the at least one valve seat is pressed.
  • the at least one spring element is provided in particular for moving and / or deforming the at least one throttle element, in particular when the actuator unit is deactivated and / or has failed, and / or to hold it in the closed position.
  • a "closing position” should be understood in particular a position in which the at least one throttle element is in direct contact with the at least one valve seat and a gap between the at least one throttle element and the at least one valve seat at least substantially completely disappears and / or closed , In particular, one is Connection between the at least one throttle element and the at least one valve seat in the closed position at least substantially gas-tight.
  • a sealing area between the at least one throttle element and the at least one valve seat has a leak rate of at most 10 -6 Pa * m 3 / s, advantageously of at most 10 -8 Pa * m 3 / s and preferably of at most 10 -10 Pa * m 3 / s.
  • the at least one spring element has a prestress in an assembled state.
  • a prestressed length of the at least one spring element, in particular in the closed position of the at least one throttle element is in particular at most 75%, advantageously at most 50%, particularly advantageously at most 25% and preferably at most 12.5% of an unstressed length of the at least one spring element.
  • the at least one actuator unit operates in particular with or against the spring force of the at least one spring element.
  • a generic control valve device can be provided with improved operating characteristics.
  • a spring element with a relatively small spring constant an advantageously small change in the spring force of the spring element can be achieved in a method of the at least one throttle element.
  • an advantageous exact method of the at least one throttle element relative to the at least one valve seat can be carried out.
  • an advantageous tightness, in particular gas tightness, of the control valve device in a closed state can be achieved by the at least one spring element.
  • the at least one actuator unit is designed as a Tauchspulenaktoriser.
  • a "Tauchspulenaktoriser” should be understood in this context, in particular an actuator, which has at least one primary part and at least one movable to the at least one primary part secondary part.
  • the at least one primary part comprises in particular at least one magnetic circuit with at least one permanent magnet.
  • the secondary part comprises at least one coil, which is arranged in an air gap of the magnetic circuit of the primary part.
  • the primary part is in particular preferably mechanically fixed. Upon application of the at least one coil of the at least one secondary part within a magnetic field of the primary part a current acts on the coil and thus on the secondary part a Lorentz force that displaces the secondary part along the primary part.
  • the force is particularly proportional to the current.
  • a direction of the force vector is determined in particular by the current direction.
  • the at least one valve tappet advantageously has a reduced mass relative to valve tappets known from the prior art.
  • the at least one valve tappet may be at least partially formed by a lightweight construction material, for example aluminum and / or a plastic and / or a fiber-reinforced plastic, in particular a glass-fiber-reinforced plastic.
  • the at least one valve tappet preferably has at least one mass-reducing recess.
  • the at least one valve tappet is at least partially hollow.
  • the at least one valve stem has at least partially a skeleton and / or lattice structure with a plurality of recesses.
  • an inertia of the at least one valve tappet can be advantageously reduced.
  • a force required for deforming and / or pivoting and / or moving the at least one throttle element can advantageously be reduced.
  • control valve device comprises at least one linear bearing which is provided for a particular indirect guidance of the at least one throttle element, in particular by means of the at least one valve tappet.
  • the at least one linear bearing is provided in particular for guiding the at least one valve tappet.
  • a “linear bearing” is to be understood in this context, in particular a bearing which surrounds the at least one valve stem in the circumferential direction at least partially, and preferably at least a large part.
  • the term "at least to a large extent” should be understood to mean at least 50%, advantageously at least 60%, preferably at least 70% and particularly preferably at least 80%.
  • a “circumferential direction" of an object is intended in particular to be an azimuthal, perpendicular to a direction of longitudinal extent of the object Object arranged direction to be understood.
  • a “longitudinal extension direction” of an object should in particular be understood to mean a direction which is parallel to a longest edge of a smallest imaginary cuboid which just barely surrounds the object.
  • the at least one linear bearing may be formed as a linear sliding bearing whose surface has, in particular, a center roughness of not more than 0.2 ⁇ m, advantageously of not more than 0.1 ⁇ m and preferably of not more than 0.05 ⁇ m.
  • the average roughness value can be achieved by a surface treatment and / or by a coating of the surface of the linear sliding bearing, for example with PTFE and / or a plastic.
  • the at least one linear bearing may be formed as a linear ball bearing.
  • an advantageously exact guidance of the at least one valve tappet can be achieved with simultaneously advantageously reduced friction, in particular for compensation of a relatively low lateral stability of the at least one spring element.
  • a force required for deforming and / or pivoting and / or moving the at least one throttle element can advantageously be reduced and a positioning accuracy of the at least one throttle element advantageously increased.
  • the control valve device comprises at least one sealing element, which is arranged between the at least one throttle element and the at least one valve seat.
  • the at least one sealing element can be arranged on the at least one valve seat, in particular on the contact surface of the at least one valve seat, and / or preferably on the at least one throttle element, in particular circumferentially on the at least one throttle element.
  • a "sealing element” is to be understood as meaning, in particular, an element which is intended to limit, and / or at least to largely prevent, a particularly undesired escape of at least one fluid from a valve chamber of the control valve device.
  • the at least one sealing element may at least partially consist of an elastomer, for example polyurethane and / or nitrile rubber.
  • an advantageously improved sealing effect can be achieved, in particular also when the at least one throttle element is acted upon by a relatively small force, in particular by the at least one spring element.
  • the at least one valve seat is at least partially wedge-shaped, a sealing effect can advantageously be further improved.
  • the fact that the at least one valve seat is at least partially "wedge-shaped" should in particular mean that the at least one valve seat tapers from a valve seat base to an end pointing in the direction of the at least one throttle element.
  • the control valve device comprises at least one membrane which is provided to terminate at least one valve chamber at least on one side.
  • a membrane is to be understood as meaning in particular a flexible, gas-tight separating layer, in particular corrugated bellows and / or preferably polymer separating layer.
  • a "valve chamber” is to be understood as meaning, in particular, a spatial area within the control valve device into which at least one fluid can be introduced.
  • the at least one valve chamber is closed by the at least one membrane on at least one throttle element opposite side in each operating state at least substantially gas-tight.
  • the at least one membrane is fastened with an outer circumference to a wall of the at least one valve chamber.
  • the at least one membrane with an inner circumference is attached to the at least one valve tappet.
  • an effective surface area of a surface of the at least one membrane facing the at least one valve chamber corresponds at least substantially to an effective surface area of a surface of the at least one throttle element facing the at least one valve chamber.
  • an effective surface area of a surface of the at least one membrane facing the at least one valve chamber deviates by at most 10%, advantageously by not more than 8%, particularly advantageously by not more than 5% and preferably by not more than 2% from an effective surface area of a surface facing the at least one valve chamber of the at least one throttle element.
  • an "effective surface area" is to be understood as meaning, in particular, a surface area of an element which is subjected to a pressure by a fluid flowing into the at least one valve chamber.
  • a valve system with at least one control valve device according to the invention is proposed with at least one further valve device, which is connected in fluidic connection with the at least one control valve device in series.
  • an interconnection of the at least one control valve device with further valve devices, in particular with the same or different function, can be made possible in an advantageously simple manner.
  • an advantageous adaptation of a valve system can take place.
  • the at least one further valve device is designed as a shut-off valve.
  • a shut-off valve should be understood to mean, in particular, a valve which is provided for a particularly controlled opening and / or closing of at least one fluid line.
  • the at least one shut-off valve is designed as a solenoid valve.
  • control valve device should not be limited to the application and embodiment described above.
  • the fuel cell device according to the invention may have a different number from a number of individual elements, components and units mentioned herein for fulfilling a mode of operation described herein.
  • FIG. 1 shows a sectional view of a valve system 40 with a control valve device 10 and a further valve device 36.
  • the control valve device 10 and the further valve device 36 are fluidly connected in series.
  • the further valve device 36 is upstream of the control valve device 10 in terms of fluid technology.
  • the valve system 40 has an inlet opening 50, which is provided for introducing a, in particular gaseous, fluid into the valve system 40.
  • the valve system 40 has an outlet opening 52, which is provided for a discharge of the fluid from the valve system 40.
  • a threaded flange 54, 56 is respectively arranged, which are provided to a connection of a fluid supply line, not shown, and / or a fluid discharge, not shown.
  • the further valve device 36 is designed as a shut-off valve 38.
  • the further valve device 36 is designed as a solenoid valve 42.
  • a further valve device is designed as a hydraulic valve and / or a pneumatic valve and / or a manual valve.
  • the further valve device 36 has an electromagnetic actuator unit 46.
  • the actuator unit 46 comprises a coil 60 which is mechanically fixed in position.
  • the actuator unit 46 comprises a core 62 made of a ferromagnetic material, for example iron or steel.
  • the core 62 is mounted linearly movable within the coil 60.
  • a shut-off element 48 of the further valve device 36 is connected to the core 62 via a valve tappet 64.
  • the actuator unit 46 comprises a spring element 66 designed as a compression spring, which is provided for locking the shut-off element 48 in a currentless state of the actuator unit 46 in the direction of a valve seat 58 of the further valve device to press 36 and the other valve device 36 thus close.
  • the spring element 66 is arranged on a side of the core 62 facing away from the shut-off element 48 between the core 62 and a housing 68 of the valve system 40 and / or the further valve device 36.
  • the core 62 is linearly movable against a spring force of the spring element 66. Due to the linear movement of the core 62 against the spring force of the spring element 66, a lifting of the shut-off element 48 from the valve seat 58, whereby the further valve device 36 is opened.
  • the control valve device 10 comprises a throttle element 12, a valve seat 14 and an actuator unit 16 which is provided with the at least one throttle element 12 relative to the valve seat 14 to proceed.
  • the actuator unit 16 is designed as a Tauchspulenaktorizi 20.
  • the actuator unit 16 comprises a permanent magnetic core 70, which is mechanically fixed in its position.
  • the actuator unit 16 comprises a coil 72, which is wound on a relative to the core 70 movable coil carrier 74.
  • the control valve device 10 comprises a valve tappet 22 which is provided to transmit a movement of the coil carrier 74 to the throttle element 12.
  • the valve stem 22 is partially hollow and has a recess extending along its main extension recess 24, whereby a mass and thus an inertia of the valve stem 22 relative to a valve stem of a solid material is reduced.
  • the valve stem 22 is formed integrally with the throttle element 12.
  • the throttle element 12 is at least substantially plate-shaped. On the throttle element 12 circumferentially one, in particular elastic, sealing element 26 is arranged circumferentially.
  • the valve chamber 30 is closed by a flexible membrane 28 on a side facing the actuator unit 16.
  • the membrane 28 is attached to an outer periphery 78 on a wall 82 of the valve chamber 30.
  • the diaphragm 28 With an inner periphery 80, the diaphragm 28 is secured to the valve lifter 22. Movements of the valve lifter 22 lead to a corresponding deflection of the diaphragm 28, as a result of which the valve chamber 30 is reliably closed even in the case of movements of the valve tappet 22 in the direction of the actuator unit 16.
  • An effective surface area of a surface 32 of the one diaphragm 28 facing the valve chamber 30 corresponds to an effective area of a surface 34 of the one throttle element 12 facing the valve chamber 30.
  • control valve device 10 comprises a spring element 18, which is provided to pressurize the throttle element 12 with a force directed in the direction of the valve seat 14.
  • the throttle element 12 In a closed state of the control valve device 10, the throttle element 12 is acted upon by the spring element 18, for example with a force of 1 N to 2.5 N.
  • the spring element 18 is arranged between the throttle element 12 and the housing 68 of the valve system 40 and / or the control valve device 10.
  • the spring element 18 is mounted under a bias.
  • a prestressed length of the spring element 18 in a closed state of the control valve device 10 is for example a quarter of an unstressed length of the spring element 18.
  • the spring element 18 has in particular a spring constant of at most 0.5 N / mm.
  • the spring element 18 has a spring constant of at most 0.1 N / mm.
  • the spring element 18 is designed as a helical compression spring 76.
  • the throttle element 12 is pressed by the spring member 18 against the valve seat 14, which at any time, especially in case of failure of a power supply of the control valve unit 10, a safe, in particular gas-tight, closing the control valve device 10 is guaranteed.
  • the valve seat 14 is wedge-shaped. The valve seat 14 tapers from a valve seat base 84 towards an end 86 pointing in the direction of the throttle element 12. As a result, a contact surface between the sealing element 26 and the valve seat 14 is reduced in a closed state of the control valve device 10 and a by the spring element 18 generated contact pressure is concentrated on the relatively small contact surface.
  • the coil 72 is supplied with a current, whereby a linear movement of the bobbin 74 is generated relative to the core 70.
  • the movement is transmitted via the valve tappet 22 to the throttle element 12.
  • the throttle element 12 Upon opening of the control valve device 10, the throttle element 12 is moved away from the valve seat 14 counter to the spring force of the spring element 18, so that the fluid can flow out of the valve chamber 30 in the direction of the outlet opening 52.
  • the throttle element 12 is moved with the spring force of the spring element 18 to the valve seat 14, so that a volume flow of the fluid from the valve chamber 30 is reduced in the direction of the outlet opening 52 and completely closed in the closed state.
  • the valve stem 22 is guided by a linear bearing 44.
  • the linear bearing 44 is formed as a sliding bearing 88.
  • a surface 90 of the linear bearing 44 has a center roughness of not more than 0.1 ⁇ m.
  • the relatively small spring constant of the spring element 18 means that a force generated by the spring element 18 and acting on the throttle element 12 changes only slightly with a change in length of the spring element 18.
  • a force generated by the actuator unit 16 is proportional to a current strength of a current, with which the coil 72 is acted upon, and a force generated by the spring member 18 and acting on the throttle element 12 force only slightly changed in a change in length of the spring element 18 is an exact partial and / or complete opening and / or closing of the control valve device 10 possible because the throttle element 12 can be moved precisely in any position between a complete opening and a complete closing of the control valve device 10.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Magnetically Actuated Valves (AREA)
EP15197534.9A 2015-01-08 2015-12-02 Soupape de regulation Not-in-force EP3043114B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PT108135A PT108135A (pt) 2015-01-08 2015-01-08 Dispositivo de válvula de controlo

Publications (2)

Publication Number Publication Date
EP3043114A1 true EP3043114A1 (fr) 2016-07-13
EP3043114B1 EP3043114B1 (fr) 2018-06-06

Family

ID=54780162

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15197534.9A Not-in-force EP3043114B1 (fr) 2015-01-08 2015-12-02 Soupape de regulation

Country Status (2)

Country Link
EP (1) EP3043114B1 (fr)
PT (1) PT108135A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109631340A (zh) * 2018-10-17 2019-04-16 中山市思源电器有限公司 一种燃气热水器执行器

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3469590A (en) * 1966-10-17 1969-09-30 Monsanto Co Modulating control valve
US3842809A (en) * 1972-10-03 1974-10-22 Cleveland Electronics Inc Fluid flow metering valve for internal combustion engine
EP0048440A1 (fr) * 1980-09-17 1982-03-31 Matsushita Electric Industrial Co., Ltd. Vanne de régulation de débit
WO2005073632A1 (fr) * 2004-01-28 2005-08-11 Sit La Precisa S.P.A. Unite de soupape multifonction controlant la fourniture de gaz combustible a un bruleur
WO2006003684A1 (fr) 2004-07-02 2006-01-12 Sit La Precisa S.P.A. Soupape multifonction servant a reguler l'alimentation d'un bruleur en gaz combustible
EP2444730A1 (fr) * 2010-10-19 2012-04-25 Coprecitec, S.L. Méthode de montage d'un robinet de gaz électromagnétiques, et vanne de gaz électromagnétique

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4921208A (en) * 1989-09-08 1990-05-01 Automatic Switch Company Proportional flow valve
SE532533C2 (sv) * 2008-06-25 2010-02-16 Oehlins Racing Ab Tryckregulator för stötdämpare
DE102011013589A1 (de) * 2011-03-10 2013-04-04 Wilhelm Funke Regelventil mit einem Kurzhubaktor und Tauchspule zum Dosieren und Austragen von Fluiden und Pasten

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3469590A (en) * 1966-10-17 1969-09-30 Monsanto Co Modulating control valve
US3842809A (en) * 1972-10-03 1974-10-22 Cleveland Electronics Inc Fluid flow metering valve for internal combustion engine
EP0048440A1 (fr) * 1980-09-17 1982-03-31 Matsushita Electric Industrial Co., Ltd. Vanne de régulation de débit
WO2005073632A1 (fr) * 2004-01-28 2005-08-11 Sit La Precisa S.P.A. Unite de soupape multifonction controlant la fourniture de gaz combustible a un bruleur
WO2006003684A1 (fr) 2004-07-02 2006-01-12 Sit La Precisa S.P.A. Soupape multifonction servant a reguler l'alimentation d'un bruleur en gaz combustible
EP2444730A1 (fr) * 2010-10-19 2012-04-25 Coprecitec, S.L. Méthode de montage d'un robinet de gaz électromagnétiques, et vanne de gaz électromagnétique

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109631340A (zh) * 2018-10-17 2019-04-16 中山市思源电器有限公司 一种燃气热水器执行器

Also Published As

Publication number Publication date
EP3043114B1 (fr) 2018-06-06
PT108135A (pt) 2016-07-08

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