WO2015094722A1 - Électrovanne ayant un mécanisme de régulation d'armature - Google Patents

Électrovanne ayant un mécanisme de régulation d'armature Download PDF

Info

Publication number
WO2015094722A1
WO2015094722A1 PCT/US2014/068878 US2014068878W WO2015094722A1 WO 2015094722 A1 WO2015094722 A1 WO 2015094722A1 US 2014068878 W US2014068878 W US 2014068878W WO 2015094722 A1 WO2015094722 A1 WO 2015094722A1
Authority
WO
WIPO (PCT)
Prior art keywords
poppet
solenoid
solenoid valve
cooking medium
guide
Prior art date
Application number
PCT/US2014/068878
Other languages
English (en)
Inventor
Michael Shields
David DIPILLA
Gary Miller
Original Assignee
Henny Penny Corporation
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 Henny Penny Corporation filed Critical Henny Penny Corporation
Publication of WO2015094722A1 publication Critical patent/WO2015094722A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0686—Braking, pressure equilibration, shock absorbing
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J37/00—Baking; Roasting; Grilling; Frying
    • A47J37/12—Deep fat fryers, e.g. for frying fish or chips
    • A47J37/1271—Accessories
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/029—Electromagnetically actuated valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0644—One-way valve
    • F16K31/0655—Lift valves

Definitions

  • the invention relates generally to a solenoid valve for cooking medium systems (e.g. , open/pressure fryers). Specifically, the invention relates to using a solenoid valve for transferring a cooking medium from a filtering system to a fry pot in a cooking apparatus.
  • a solenoid valve for transferring a cooking medium from a filtering system to a fry pot in a cooking apparatus.
  • Such cooking apparatuses are used to cook various food products, e.g. , poultry, fish, potato products, and the like.
  • Such cooking apparatuses may include one or more cooking chambers, e.g. , fryer pots, which may be filled with a cooking medium, e.g. , an oil, a liquid shortening, or a meltable- solid shortening.
  • a cooking medium e.g. , an oil, a liquid shortening, or a meltable- solid shortening.
  • Such cooking apparatus also may include a heating element, e.g. , an electrical heating element, or a gas heating element, such as a gas burner and gas conveying tubes, which heat the cooking medium in the cooking chamber.
  • a valve e.g., a solenoid valve, may be located between the fry pot and a filtering system in order to transfer the cooking medium from the filtering system to the fry pot when the valve is actuated.
  • solenoid valves typically use a pull-type mechanism in which a solenoid is actuated to open the valve by "pulling" a component of the valve into the solenoid chamber, thus allowing the valve to open.
  • solenoid valves used for moving shortening in which the component of the valve is pulled into the solenoid chamber may result in build-up of viscous and/or congealed cooking medium on the solenoid components, which may then cause the solenoid valve to stick in an open or closed state and limit functionality.
  • the solenoid valve may be configured such that any media flowing through the valve does not enter a solenoid chamber or come in contact with a solenoid operator.
  • this solenoid valve may utilize a novel "push" mechanism to open the valve, and also utilize a self-cleaning and self-centering component of the valve that results in removal of excess cooking medium from the component that opens and closes the valve and ensures proper sealing.
  • a solenoid valve may be configured to transfer cooking medium from a first system to a second system.
  • the solenoid valve may comprise a solenoid and a valve body.
  • the solenoid may comprise a solenoid coil and an armature shaft disposed to extend out of a bottom surface of the solenoid, the armature shaft configured to move into and out of the solenoid.
  • the valve body may comprise a push rod, a valve chamber, a first sealing ring, a poppet, a second sealing ring, a poppet guide, and a spring.
  • the push rod may be disposed to extend out of a top surface of the valve body, the push rod contacting the armature shaft and configured to move into and out of the valve body.
  • the first sealing ring may be disposed around the push rod and configured to seal the valve chamber.
  • the poppet may be disposed within the valve body, the poppet contacting a bottom portion of the push rod opposite the armature shaft, and the poppet including a projection.
  • the poppet guide may be disposed within the valve body, the poppet guide including a through hole.
  • the spring may be disposed between the poppet and the poppet guide and configured to position the poppet relative to the poppet guide.
  • the armature shaft may be configured to extend out of the bottom surface and push the push rod into the valve body, and the push rod may be configured to push the poppet toward the poppet guide by depressing the spring such that the projection of the poppet inserts into the through hole of the poppet guide.
  • Fig. 1 is a prospective view of a solenoid valve, according to an embodiment of the invention.
  • Fig. 2 is a first side view of the solenoid valve, according to an embodiment of the invention.
  • Fig. 3 is a sectional view of the solenoid valve along the imaginary line A-A shown in Fig. 2, according to an embodiment of the invention.
  • Fig. 4 is a second side view of the solenoid valve, according to an embodiment of the invention.
  • Fig. 5 is a disassembled view showing the components of the solenoid valve, according to an embodiment of the invention.
  • Figs. 6A-6C are disassembled views of certain components of the solenoid valve, according to an embodiment of the invention.
  • Fig. 7 is a schematic view of the components of the solenoid valve in a closed state, according to an embodiment of the invention.
  • Fig. 8 is a schematic view of the components of the solenoid valve in an open state, according to an embodiment of the invention.
  • Fig. 9 is a schematic view of the solenoid valve, according to an embodiment of the invention.
  • a solenoid valve 10 may comprise a solenoid 20 and a valve body 30.
  • Solenoid 20 may include a solenoid coil (not shown) and a plurality of wires 22 (e.g., two wires 22) for connecting to a power source.
  • Solenoid 20 may be energized to 120V, 240V, or any other suitable voltage for opening the valve.
  • Valve body 30 may include an inlet 50 and an outlet 52.
  • Inlet 50 and outlet 52 may be National Pipe Thread (NTP) taper or any other suitable type of fitting connection, e.g., to be connected to a filtering system and a fry pot of a fryer.
  • NTP National Pipe Thread
  • the plurality of wires 22 may be disposed adjacent a top surface 21 of solenoid 20, and a bottom surface 23 of solenoid 20 may be disposed opposite of top surface 21 and facing a top surface 31 of valve body 30.
  • a bottom surface 33 of valve body 30 may be disposed opposite of top surface 31.
  • Figs. 3 and 5-8 depict the internal components of solenoid valve 10. Specifically, Fig. 3 depicts a sectional view of solenoid valve 10 along the imaginary line A- A shown in Fig. 2, Fig. 5 shows a picture of the disassembled components of solenoid valve 10, Figs. 6A-6C depict the poppet-poppet guide configuration, Fig. 7 depicts the solenoid valve 10 in a closed state (i.e., no cooking medium is moving though valve body 30), and Fig. 8 depicts the solenoid valve 10 in an open state (i.e., cooking medium is passing through valve body 30).
  • Solenoid 20 may comprise a plurality of threaded studs 56 and an armature shaft 24 disposed at substantially the center of bottom surface 23.
  • the plurality of threaded studs 56 may be located close to an edge of bottom surface 23.
  • Each of the plurality of threaded studs 56 may be configured to be inserted into each of a plurality of holes 60 on valve body 30 and securely fasten to valve body 30 using a plate 46 that contacts a bottom surface 33 of valve body 30 and plurality of nuts 48 that contacts plate 46 (see Fig. 3).
  • Armature shaft 24 may be configured to protrude a predetermined distance out of solenoid 20. Armature shaft 24 may also be configured to be movable into and out of solenoid 20 along a direction substantially perpendicular to bottom surface 23. For example, when the solenoid coil within solenoid 20 is energized (i.e., an open state), armature shaft 24 may be configured to be pushed a predetermined distance out of solenoid 20 (see Fig. 8). When the solenoid coil is not energized (i.e., a closed state), armature shaft 24 may be configured to maintain (or move back to) an armature shaft resting position (see Fig. 7).
  • a first o-ring 26 (e.g., a nitrile rubber o-ring) may be disposed to surround armature shaft 24 at bottom surface 23. First o-ring 26 may be located a predetermined distance from an end of armature shaft 24 that protrudes out of solenoid 20. First o-ring 26 may be configured to seal solenoid 20 and prevent cooking medium from entering along the sides of armature shaft 24 into an internal chamber (not shown) of solenoid 20.
  • a retaining ring 28 may be disposed below o-ring 26, and may be configured to retain armature shaft 24 in the armature shaft resting position by abutting armature shaft 24 in the resting position (i.e., the closed state; see Fig. 7).
  • Valve body 30 may comprise a push rod 32, a second o-ring 34 (e.g., a first FDA polymer o-ring, which may be a FDA Viton® polymer o-ring), a poppet 36, a sealing washer 38, a return spring 40, a poppet guide 42, a third o-ring 44 (e.g., a second FDA polymer o-ring, which may be a FDA Viton® polymer o-ring), and a valve chamber 54.
  • Push rod 32 may be configured to protrude a predetermined distance out of top surface 31 of valve body 30 and contact armature shaft 24.
  • push rod 32 may be configured to move into and out of valve body 30.
  • armature shaft 24 when the solenoid coil within solenoid 20 is energized (i.e., an open state), armature shaft 24 is configured to be pushed a predetermined distance out of solenoid 20 and move push rod 32 a predetermined distance into valve body 30 (see Fig. 8), thus opening valve chamber 54 (discussed below).
  • armature shaft 24 when the solenoid coil is not energized (i.e., a closed state), armature shaft 24 is configured to move back to the armature shaft resting position, allowing push rod 32 to move back to a push rod resting position (see Fig. 7).
  • Second o-ring 34 may be disposed to surround push rod 32 at a position below top surface 31 of valve body 30. Second o-ring 34 may be configured to seal valve chamber 54 and prevent any cooking medium within valve chamber 54 from exiting valve chamber 54 along push rod 32.
  • An advantage of this configuration is that it results in a non-wetted pin design in which the cooking medium flowing through valve body 30 does not enter the solenoid chamber within solenoid 20 or come into contact with the solenoid coil.
  • armature shaft 24 and at least a portion of push rod 32 located above second o-ring 34 are not subjected to contact with the cooking medium, and are instead situated outside the cooking medium path that is sealed off with second o-ring 34.
  • Poppet 36 may be disposed below push rod 32, and disposed to contact push rod 32 at a position opposite armature shaft 24.
  • top surface 70 of poppet 36 may include a cavity 74.
  • Bottom surface 72 may include a rod-like protrusion 76 disposed at substantially the center of bottom surface 72.
  • Sealing washer 38 may rest along the edge of top surface 70 of poppet 36, and may be configured to seal valve chamber 54 in the closed position ⁇ see Fig. 7) such that cooking medium cannot pass through valve chamber 54 from inlet 50 to outlet 52.
  • Protrusion 76 of poppet 36 may be configured to reside and move within a hole 84 in a top surface 80 of poppet guide 42.
  • Hole 84 may be a through- hole that extends through poppet guide 42 from top surface 80 to a bottom surface 82 in a direction substantially perpendicular to both top surface 80 and bottom surface 82.
  • This configuration has the advantage that the position of protrusion 76 within poppet 36 may allow for poppet 36 to be self-centering to ensure proper sealing with metal to metal contact between protrusion 76 of poppet 36 and poppet guide 42.
  • poppet guide 42 may include a side hole 86 disposed along the sides of poppet guide 42.
  • Poppet 36 and poppet guide 42 may be positioned such that a spring 40 is disposed between poppet 36 and poppet guide 42. Specifically, as depicted in the exemplary embodiment of Fig. 6C, spring 40 contacts bottom surface 72 of poppet 36, and top surface 80 of poppet guide 42 (more specifically, top surface 80 of poppet guide 42). In a poppet resting position (i.e., a closed state), poppet 36 may be disposed to reside within hole 84 on top surface 80 of poppet guide 42 at a predetermined distance away from bottom surface 82 (see Fig. 7).
  • protrusion 76 may be moved such that a portion of protrusion 76 approximately contacts bottom surface 82 of poppet guide 42, thus moving sealing washer 38 in direction away from push rod 32 and allowing cooking medium to enter valve chamber 52 (see Fig. 8).
  • solenoid coil within solenoid 20 when the solenoid coil within solenoid 20 is energized, armature shaft 24 depresses push rod 32 a predetermined distance, which consequently extends poppet 36 into poppet guide 42, allowing the cooking medium to flow from inlet 50, through valve chamber 54, and out through outlet 52.
  • the cooking medium may move along two different paths, one path along the push rod 32 and another path between poppet 36 and poppet guide 42 (see Fig. 8).
  • spring 40 pushes poppet 36 away from poppet guide 42 and back into the poppet resting position (i.e., the closed position; see Fig. 7).
  • This spring return force may be an amount of force sufficient to overcome the viscosity of congealed oil that could potentially build up over time, for example, between 5 to 15 pounds of force.
  • the poppet-poppet guide configuration has numerous advantages.
  • Poppet 36 (specifically, protrusion 76) may be designed with tight tolerances for a close fit inside poppet guide 42. Due to the small amount of space between poppet 36 and poppet guide 42, a substantial portion of the cooking medium sticking to the surface of protrusion 76 may be scraped off when poppet 36 extends into poppet guide 42, resulting in a self-cleaning configuration. In addition, any residual cooking medium not scraped off poppet 36 may be forced out of side hole 86 disposed along the sides of poppet guide 42, thus minimizing build-up of cooking medium within poppet guide 42.
  • Fig. 9 is an alternative representation of solenoid 10, and shows inlet 50 and outlet 52.
  • the advantages of the preferred embodiments include: an improved opening characteristic of solenoid valve 10 that involves pushing, rather than pulling (i.e., in traditional solenoid valves), poppet 36 open to allow cooking medium to flow through; a non-wetted pin design in which the cooking medium flowing through valve body 30 does not enter the solenoid chamber or come into contact with the solenoid operator (e.g., the solenoid coil), and also does not contact armature shaft 24 or the portion of push rod 32 located above second o-ring 34 that is used to seal off valve chamber 54; a self-cleaning poppet design that allows for poppet guide 42 to scrape excess cooking medium off the surface of projection 76 of poppet 36 when poppet 36 is depressed into poppet guide 42, decreasing the chances of poppet failure due to sticking/movement issues; and a self-centering poppet design that allows for proper sealing and movement of poppet 36 within hole 84 of poppet guide 42.
  • this improved solenoid valve is designed to overcome the problem of viscous cooking medium that may build up on the internal components of a traditional solenoid valve (e.g., the solenoid coil, the solenoid chamber, the pulling mechanism that pulls open to open the valve and allow cooking medium to pass through) over time, resulting in sticking issues and failure of the solenoid valve.
  • a traditional solenoid valve e.g., the solenoid coil, the solenoid chamber, the pulling mechanism that pulls open to open the valve and allow cooking medium to pass through
  • this improved design may result in a life improvement of 4.25 times beyond the traditional solenoid valve life, when measured in terms of complete cooking cycles.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Food Science & Technology (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

L'invention concerne une électrovanne configurée pour transférer une substance de cuisson d'un premier système à un deuxième système. L'électrovanne peut comprendre un solénoïde et un corps de vanne. Le solénoïde peut comprendre une bobine de solénoïde et un arbre d'armature configuré pour se déplacer en entrant et sortant du solénoïde. Le corps de vanne peut comprendre une tige de poussée, une chambre de vanne, une première bague d'étanchéité, un champignon, une deuxième bague d'étanchéité, un guide de champignon et un ressort. La tige de poussée peut être configurée pour se déplacer en entrant et sortant du corps de vanne. Les première et deuxième bagues d'étanchéité peuvent être configurées pour effectuer la fermeture étanche de la chambre de vanne. Le champignon peut être en contact avec une partie inférieure de la tige de poussée. Le guide de champignon peut comprendre un trou traversant. Le ressort peut être situé entre le champignon et le guide de champignon et être configuré pour positionner le champignon par rapport au guide de champignon.
PCT/US2014/068878 2013-12-16 2014-12-05 Électrovanne ayant un mécanisme de régulation d'armature WO2015094722A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201361916595P 2013-12-16 2013-12-16
US61/916,595 2013-12-16

Publications (1)

Publication Number Publication Date
WO2015094722A1 true WO2015094722A1 (fr) 2015-06-25

Family

ID=53403509

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2014/068878 WO2015094722A1 (fr) 2013-12-16 2014-12-05 Électrovanne ayant un mécanisme de régulation d'armature

Country Status (1)

Country Link
WO (1) WO2015094722A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018199834A1 (fr) * 2017-04-25 2018-11-01 Tom Johansen Système de collecte des huiles de cuisson usagées et procédé de collecte des huiles de cuisson usagées
CN115040907A (zh) * 2022-04-26 2022-09-13 帕克(无锡)阀门有限公司 一种流量调节阀的过滤设备及使用方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6047718A (en) * 1999-04-01 2000-04-11 Emersonelectric Co. Solenoid valve having coaxial armatures in a single coil design
US6412335B1 (en) * 2000-11-08 2002-07-02 Eaton Corporation Low current solenoid valve
US20070164243A1 (en) * 2006-01-13 2007-07-19 Asco Controls, L.P. Three-way direct pilot valve
US20080121578A1 (en) * 2006-11-27 2008-05-29 Henny Penny Corporation Automatic cooking medium filtering systems and methods
US20120291727A1 (en) * 2011-05-19 2012-11-22 Eaton Corporation Adjustable-stroke solenoid valve

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6047718A (en) * 1999-04-01 2000-04-11 Emersonelectric Co. Solenoid valve having coaxial armatures in a single coil design
US6412335B1 (en) * 2000-11-08 2002-07-02 Eaton Corporation Low current solenoid valve
US20070164243A1 (en) * 2006-01-13 2007-07-19 Asco Controls, L.P. Three-way direct pilot valve
US20080121578A1 (en) * 2006-11-27 2008-05-29 Henny Penny Corporation Automatic cooking medium filtering systems and methods
US20120291727A1 (en) * 2011-05-19 2012-11-22 Eaton Corporation Adjustable-stroke solenoid valve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018199834A1 (fr) * 2017-04-25 2018-11-01 Tom Johansen Système de collecte des huiles de cuisson usagées et procédé de collecte des huiles de cuisson usagées
CN115040907A (zh) * 2022-04-26 2022-09-13 帕克(无锡)阀门有限公司 一种流量调节阀的过滤设备及使用方法

Similar Documents

Publication Publication Date Title
US8235064B2 (en) Single coil redundant valve
CN105299297B (zh) 三通电磁阀
JP7169095B2 (ja) ダイヤフラムバルブ
WO2015094722A1 (fr) Électrovanne ayant un mécanisme de régulation d'armature
US7938383B2 (en) Solenoid mounting arrangement for liquid dispensing valve
CA2550859A1 (fr) Ensemble clapet
US20060213496A1 (en) Multiple-output solenoid valve
US9664300B2 (en) Pilot-operated valve with floating piston
EP3004703B1 (fr) Vanne d'arrêt avec sécurité thermique
US2828937A (en) Valve assembly
WO2017062358A1 (fr) Vanne anti-fuite pour boîte de vitesses
US20220191980A1 (en) Electromagnetic induction continuous-flow water heater in an automatic beverage preparation machine
JP2005193057A (ja) エラストマー安全弁を備えた圧力下で食品を調理するための家庭用器具
US10330232B2 (en) Domestic appliance system with push-fit fluid coupling
JP5026160B2 (ja) パイロット式電磁弁
KR101118952B1 (ko) 전기밥솥용 증기배출밸브
US20210381616A1 (en) Solenoid valve device for a pressure-compensated solenoid valve, pressure-compensated solenoid valve, solenoid valve system, and method using the solenoid valve device
EP1217341A2 (fr) Ensemble sonde pour surveiller le niveau de l' eau dans des bouilloires à resistance électrique
US20150219232A1 (en) Membrane style excess flow valve
KR102630624B1 (ko) 유체 바람직하게는 가스용 밸브
US921760A (en) Electrically-operated valve.
EP3280955B1 (fr) Soupape de sécurité adaptee a un appareil de gaz de combustion
CN215127141U (zh) 一种烹饪设备
US9383025B2 (en) Excess flow valve with cage
KR100674509B1 (ko) 전기압력솥의 증기배출밸브

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14872422

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 14872422

Country of ref document: EP

Kind code of ref document: A1