EP3914842A1 - Entlüftungskappe an einem magnetventil in druckluftanlagen, beispielsweise für fahrzeuge - Google Patents
Entlüftungskappe an einem magnetventil in druckluftanlagen, beispielsweise für fahrzeugeInfo
- Publication number
- EP3914842A1 EP3914842A1 EP20700799.8A EP20700799A EP3914842A1 EP 3914842 A1 EP3914842 A1 EP 3914842A1 EP 20700799 A EP20700799 A EP 20700799A EP 3914842 A1 EP3914842 A1 EP 3914842A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- carrier element
- vent cap
- cap
- sealing element
- solenoid valve
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/002—Air treatment devices
- B60T17/008—Silencer devices
-
- 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
- F16K31/0603—Multiple-way valves
- F16K31/0624—Lift valves
- F16K31/0627—Lift valves with movable valve member positioned between seats
-
- 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
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/08—Means in valves for absorbing fluid energy for decreasing pressure or noise level and having a throttling member separate from the closure member, e.g. screens, slots, labyrinths
Definitions
- Vent cap on a solenoid valve in compressed air systems for example for vehicles
- the invention relates to a vent cap on a solenoid valve in Druck Kunststoffanla conditions, for example for vehicles, with a sealing element which is arranged on a Trä gerelement, the support member at an axial end of an outlet pipe of the solenoid valve and the sealing element in the region of the axial En of the outlet pipe is arranged.
- Such a solenoid valve is published under the designation CVM 472 172 001 in a product description by the applicant. It is a ventilating and venting 3/2-way solenoid valve.
- a supply line coming from an air container is connected to a connection, and a magnetic armature designed as a valve body holds an inlet closed by the force of a compression spring.
- the armature moves up, an outlet is closed and the inlet is opened.
- the supply air now flows from the inlet connection to the outlet connection and ventilates a working line.
- the compression spring moves the armature back to its starting position.
- the inlet is closed and the outlet is opened, and the working line is vented through a room and a ventilation cap.
- a membrane valve made of an elastomer material is arranged in the vent cap, which is intended to prevent moisture and water splashing into the solenoid valve.
- the vent cap can be surrounded by a noise damper as described in DE 10 2009 029 968 A1 by the applicant.
- a damping means is arranged, which may comprise a damping material arranged wound, for example a damping fleece or a damping knitted fabric.
- the solenoid valve CVM 472 172 001 has proven itself in operation, but can still be improved with regard to the ventilation speed, noise and a permanent seal against water entering the solenoid valve, without affecting the intended service life of the solenoid valve.
- the invention had the object to provide a vent cap on a solenoid valve in compressed air systems, in particular for vehicles, which enables rapid venting with the least possible noise, while ensuring a good seal against water entering the solenoid valve, a long time Has service life without premature material fatigue and can be manufactured inexpensively.
- the invention relates to a ventilation cap on a solenoid valve in compressed air systems, for example for vehicles, with a sealing element which is arranged on a carrier element, the carrier element being arranged at an axial end of an outlet pipe of the solenoid valve and the sealing element in the region of the axial end of the outlet pipe .
- the sealing element is designed as a cap radially and axially overlapping the carrier element, which has a coaxially extending, circular rim that the rim at least on its inside adjacent to its free axial end has a receptacle for at least one geometrically complementary, radially outwardly projecting snap contour on the carrier element, that the carrier element has a coaxially arranged hollow cylindrical extension, that this coaxial extension can be fastened to the axial end of the outlet pipe, and that the carrier element centrally has a coaxial ventilation path which is fluidically connected to at least one outlet opening via a labyrinth-like sealing structure.
- the sealing element and the carrier element can be inexpensively manufactured from a plastic material using the injection molding process, assembled in a simple manner and fastened to the outlet pipe of the solenoid valve.
- a good seal against penetrating water, in particular splash water, and good noise damping can be achieved in that structures are formed on the side of the bottom of the sealing element facing the support element and on the top of the support element facing this floor, which are combined work together to form the labyrinth-like sealing structure.
- At least two, preferably four or six diametrically opposite receptacles for at least two, preferably four or six geometrically complementary, radially projecting snap contours can be formed on the carrier element on the inside of the rim.
- the positioning of the sealing element relative to the carrier element when joining together can be improved if radially projecting centering projections for the board of the sealing element are formed between two immediately adjacent snap contours on the outer circumference of the carrier element.
- the labyrinth-like sealing structure of the venting cap by means of a central axial projection and at least one concentric, annular projection on the side facing the carrier element of the bottom of the sealing element and on the top of the carrier element by at least one concentric, annular projection is formed on the carrier element.
- undulating structures are formed between the projections on the bottom of the sealing element and the projections on the top of the carrier element, which represent the labyrinth of the labyrinth-like sealing structure. These wavy structures are to be provided constructively by the radial projections mentioned and the free spaces between the projections on the bottom of the sealing element and on the top of the carrier element, or these free spaces can be opened by the compressed air to be vented.
- a quick venting by means of the magnetic valve according to the invention with low noise development can also be achieved by arranging the at least one outlet opening for the compressed air to be vented on the carrier element between the radially projecting snap contours and / or between the radially projecting centering projections.
- the at least one outlet opening for the compressed air to be vented is formed on the coaxially extending rim of the cap-shaped sealing element.
- the at least one outlet opening for the compressed air to be vented is formed radially on the outside at the bottom of the cap-shaped sealing element.
- the above-mentioned object is further achieved by the use of the ventilation cap on a solenoid valve according to one of the claims in connection with compressed air brake systems, manual transmission actuation devices and / or air suspension and axle lifting systems for vehicles.
- Another solution to the above-mentioned tasks consists of a motor vehicle with a vent cap on a solenoid valve according to one of the claims in a compressed air system in the form of a compressed air braking system, a manual transmission actuating device and / or an air spring and axle lifting system.
- FIG. 1 is an axial sectional view of a generic solenoid valve of the applicant with a vent cap according to the invention attached to it,
- FIG. 2 shows an axial section through the ventilation cap according to FIG. 1, which has a cap-shaped sealing element placed on a carrier element, in a first embodiment
- FIG. 3 is an isometric view of the carrier element according to FIG. 2 obliquely from above,
- Fig. 4 is a side view of the carrier element
- FIG. 5 shows an axial section through the vent cap according to FIG. 1, which has a cap-shaped sealing element placed on a carrier element, in a second embodiment.
- the solenoid valve 1 shown in Fig. 1 has a housing 1 a with a connection 2 for a supply line to an air tank, not shown, and a connection 2a for a working line to a working cylinder, not shown.
- a designed as a valve body magnet armature 3 rests under the action of a compression spring 5 sealingly on an inlet 4 for compressed air in the housing 1 a, which is closed in the position shown.
- An electrical connection to a magnet coil 6 surrounding the magnet armature 3 can be established via a plug connection 7 on the housing 1 a and this can be opened in a controlled manner with an electrical voltage. 1 is not the case, so that on the one hand the inlet 4 is closed and on the other hand an outlet 8 is opened in an outlet pipe 10.
- compressed air can flow from the working line 2a through a space 9 between the solenoid coil 6 and the magnet armature 3, through the outlet pipe 10 and a vent cap 1 1. 1 into the open.
- FIG. 2 A first embodiment of the vent cap 1 1.1 according to FIG. 1 is shown in FIG. 2 in a schematic longitudinal section. It has a sealing element 12 in the form of a cup-shaped cap with a flat bottom 12a and an annular rim 13 which extends coaxially to the geometric longitudinal axis of the venting cap 1.1.
- the board 13 has on its radial inner side 14 at least one receptacle 15, preferably six evenly distributed over the inner circumference on recordings 15, which serve to accommodate geometrically complementary, radially projecting snap contours 19 of a carrier element 18 of the vent cap 1 1.1 in a corresponding number .
- the snap contours 19 interact with the receptacles 15 on the radial inside 14 of the flange 13 of the sealing element 12 in the sense of an easy-to-install snap connection. If only one receptacle 15 on the board 13 is present, it is preferably an annular groove formed on the radial inside of the board 13, into which the snap contours 19 of the carrier element 18 can snap.
- FIGS. 3 and 4 illustrate as an exemplary embodiment that the carrier element 18 has radially projecting centering projections 22 on its outer circumference between two immediately adjacent snap contours 19, on which the axial flange 13 of the sealing element 12 can be supported radially. If the aforementioned annular groove is formed on the radial inner side of the flange 13 as the sole receptacle 15, the protruding centering projections 22 on the carrier element 18 can be omitted, since the snap contours 19 engaging in such an annular groove position the sealing element 12 at least sufficiently on the carrier element 18 .
- FIG. 3 also shows that the outlet openings 26 for the compressed air to be vented are formed on the carrier element 18 according to a first embodiment between the radially projecting snap contours 19 and / or between the radially projecting centering projections 22.
- the carrier element 18 also has a coaxial, hollow cylindrical extension 20.
- the free axial end of the hollow cylindrical extension 20 is provided with axial slots 20a, which facilitate the attachment of the vent cap 1 1.1 at the free axial end 10a of the outlet tube 10 of the solenoid valve 1, but nevertheless ensure a firm fit of the vent cap 1 1.1 on the solenoid valve 1.
- the carrier element 18 has a central, axially extending ventilation path 21 at its section radially on the inside close to the sealing element 12, which opens into a labyrinthine space (sealing structure 25).
- a central axial projection 16 is formed centrally above the mouth of the venting path 21, which is surrounded by an annular projection 17 concentric with it and extending axially to the carrier element 18.
- This annular projection 17 on the sealing element 12 projects into an annular depression which is formed between two annular projections 23, 24 which are formed on the upper side of the carrier element 18 facing the sealing element 12.
- a corrugated flow path is created for compressed air flowing out of the vent cap 1 1.1, which can be seen in FIG. 2 as the labyrinth-like sealing structure 25 already mentioned.
- the compressed air passes through the aforementioned outlet openings 26 into the overpressure-free environment, these outlet openings 26 being formed between the carrier element 18 and the rim 13 of the cup-shaped sealing element 12.
- the transitions from the central ventilation path 21 to a first annular axial projection 23 on the carrier element 18 and from there to the second annular projection 24 on the carrier element 18 are also rounded, whereby the wave-shaped structures between the sealing element 12 and the carrier element 18 be particularly streamlined are which must be overcome by compressed air flowing radially outwards.
- the wavy, labyrinth-like sealing structure 25 can also be formed by rectangular or triangular projections 16, 17 on the sealing element 12 and corresponding geometrically complementary annular axial projections 23, 24 on the carrier element 18 if this appears to be necessary for manufacturing or functional reasons. Also, more than the concentric projections 16, 17; 23, 24 may be provided.
- FIG. 5 shows an axial section through a venting cap 11.2 according to the invention in a second embodiment, which likewise has a cap-shaped sealing element 12 placed on a carrier element 18.
- This ventilation cap 11.2 differs from the ventilation cap 11.1 according to FIG. 2 in that at least one outlet opening 30, 31 is formed on the sealing element 12 and not on the carrier element 18.
- at least one outlet opening 30 is coaxial with the Geometric longitudinal axis of the vent cap 1 1.2 extending board 13 formed. This at least one opening 30 extends from radially inside to radially outside.
- at least one outlet opening 31 is formed in the region of the radial end of the base 12a of the cap-shaped tele element 12.
- This at least one outlet opening 31 extends from axially inside to axially outside.
- the carrier element 18 can also be seen to be geometrically simpler, since a second annular projection 24 on the carrier element 18 is not absolutely necessary in this vent cap 1 1.2.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019101556.1A DE102019101556A1 (de) | 2019-01-23 | 2019-01-23 | Entlüftungskappe an einem Magnetventil in Druckluftanlagen, beispielsweise für Fahrzeuge |
PCT/EP2020/050747 WO2020151990A1 (de) | 2019-01-23 | 2020-01-14 | Entlüftungskappe an einem magnetventil in druckluftanlagen, beispielsweise für fahrzeuge |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3914842A1 true EP3914842A1 (de) | 2021-12-01 |
Family
ID=69167825
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20700799.8A Withdrawn EP3914842A1 (de) | 2019-01-23 | 2020-01-14 | Entlüftungskappe an einem magnetventil in druckluftanlagen, beispielsweise für fahrzeuge |
Country Status (5)
Country | Link |
---|---|
US (1) | US20220073047A1 (de) |
EP (1) | EP3914842A1 (de) |
CN (1) | CN113227624A (de) |
DE (1) | DE102019101556A1 (de) |
WO (1) | WO2020151990A1 (de) |
Family Cites Families (29)
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CH449723A (de) * | 1964-09-19 | 1968-01-15 | Varta Ag | Verschlussstopfen für die Rückführung von Flüssigkeitströpfchen in den Behälter |
US3422982A (en) * | 1967-04-17 | 1969-01-21 | Dana Corp | Breather for a gear housing |
FR2242624B1 (de) * | 1973-09-05 | 1976-05-14 | Jouvenel & Cordier | |
US4094437A (en) * | 1976-08-30 | 1978-06-13 | Tokico Ltd. | Cap assembly and method for producing thereof |
DE3001538C2 (de) * | 1980-01-17 | 1986-01-02 | Wabco Westinghouse Steuerungstechnik GmbH & Co, 3000 Hannover | Entlüftungsvorrichtung für ein Ventil |
US4337875A (en) * | 1981-03-12 | 1982-07-06 | Atwood Vacuum Machine Company | Overflow and vent cap for a container |
DE3109560A1 (de) * | 1981-03-13 | 1982-09-30 | Robert Bosch Gmbh, 7000 Stuttgart | Kraftstoffeinspritzanlage |
JPH0720043Y2 (ja) * | 1989-12-20 | 1995-05-10 | 自動車機器株式会社 | リザーバキャップ |
US5160054A (en) * | 1991-04-22 | 1992-11-03 | Ingersoll-Rand Company | Tamper evident vent system for containers |
DE4237630A1 (de) * | 1992-11-05 | 1994-05-11 | Wabco Westinghouse Fahrzeug | Druckluft-Entlüftungseinrichtung |
DE4437315A1 (de) * | 1994-10-19 | 1996-04-25 | Bosch Gmbh Robert | Druckluftgerät mit Geräuschdämpfer, insbesondere Bremsgerät für Druckluft-Bremsanlagen von Kraftfahrzeugen |
US6089346A (en) * | 1999-06-02 | 2000-07-18 | 3M Innovative Properties Company | Muffler with acoustic barrier material for limited clearance pneumatic device applications |
US6178747B1 (en) * | 1999-06-15 | 2001-01-30 | Kelsey-Hayes Company | Vented reservoir for a master cylinder |
DE10149606C2 (de) * | 2001-10-09 | 2003-12-24 | Mettler Toledo Gmbh | Labyrinthdichtung mit lösbarem Ringelement und Waage |
US6622819B2 (en) * | 2001-10-15 | 2003-09-23 | Steven M. Reynolds | Sound attenuator for pneumatic exhaust |
US7232190B2 (en) * | 2002-10-23 | 2007-06-19 | Robert Bosch | Reservoir for a hydraulic circuit |
DE202005001931U1 (de) * | 2005-02-07 | 2005-04-07 | Boellhoff Verbindungstechnik | Be- und Entlüftungsventil |
DE102006046479A1 (de) * | 2006-07-11 | 2008-01-17 | Continental Teves Ag & Co. Ohg | Behälter mit einem Dichtelement |
DE202007006627U1 (de) * | 2007-05-09 | 2007-07-19 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Schalldämpfer |
DE102008029489A1 (de) * | 2008-06-20 | 2009-12-24 | Wabco Gmbh | Geräuschdämpfer für Druckluftsysteme von Fahrzeugen |
DE102009029968A1 (de) | 2009-06-23 | 2010-12-30 | Wabco Gmbh | Relaisventil, Geräuschdämpfer, Ventileinrichtung und Fahrzeug |
CN201487360U (zh) * | 2009-07-27 | 2010-05-26 | 李耀丰 | 一种电磁阀用消音器 |
US8555865B2 (en) * | 2010-09-08 | 2013-10-15 | Caterpillar Inc. | Fuel cap breather apparatus |
CN201891913U (zh) * | 2010-11-26 | 2011-07-06 | 浙江科力汽车配件有限公司 | 一种带***的车用电磁阀 |
CN203230922U (zh) * | 2013-05-17 | 2013-10-09 | 瑞立集团瑞安汽车零部件有限公司 | 防水式电磁阀 |
DE102013013281A1 (de) * | 2013-08-09 | 2015-02-12 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Geräuschreduzierter Schalldämpfer für eine Luftaufbereitungsanlage |
CN203868456U (zh) * | 2014-05-06 | 2014-10-08 | 浙江科力车辆控制***有限公司 | 一种汽车防水双联电磁阀 |
US9926109B2 (en) * | 2014-08-15 | 2018-03-27 | The Procter & Gamble Company | Vented cap assembly |
DE102016100140A1 (de) * | 2016-01-05 | 2017-07-06 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Geräuschdämpfer für ein Druckluftsystem eines Fahrzeugs, insbesondere eines Nutzfahrzeugs |
-
2019
- 2019-01-23 DE DE102019101556.1A patent/DE102019101556A1/de active Pending
-
2020
- 2020-01-14 EP EP20700799.8A patent/EP3914842A1/de not_active Withdrawn
- 2020-01-14 US US17/424,508 patent/US20220073047A1/en not_active Abandoned
- 2020-01-14 CN CN202080007304.4A patent/CN113227624A/zh not_active Withdrawn
- 2020-01-14 WO PCT/EP2020/050747 patent/WO2020151990A1/de unknown
Also Published As
Publication number | Publication date |
---|---|
WO2020151990A1 (de) | 2020-07-30 |
DE102019101556A1 (de) | 2020-07-23 |
US20220073047A1 (en) | 2022-03-10 |
CN113227624A (zh) | 2021-08-06 |
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