EP0598210B1 - Fast dosing valve for mounting at inlet and outlet parts of ventilation installations - Google Patents
Fast dosing valve for mounting at inlet and outlet parts of ventilation installations Download PDFInfo
- Publication number
- EP0598210B1 EP0598210B1 EP93116114A EP93116114A EP0598210B1 EP 0598210 B1 EP0598210 B1 EP 0598210B1 EP 93116114 A EP93116114 A EP 93116114A EP 93116114 A EP93116114 A EP 93116114A EP 0598210 B1 EP0598210 B1 EP 0598210B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- frame
- edges
- passage slot
- spring leaf
- convex
- 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.)
- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D27/00—Heating, cooling, ventilating, or air-conditioning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D27/00—Heating, cooling, ventilating, or air-conditioning
- B61D27/0009—Means for controlling or equalizing air pressure shocks in trains, e.g. when passing or crossing in tunnels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
Definitions
- the invention relates to a quick-closing valve for arrangement at intake and blow-out openings of ventilation systems, in particular fast-moving railway vehicles, consisting of a frame with at least one through-flow slot, which is provided with an adjustable closing element, which can be brought from an air pressure-dependent adjustment drive to the through-flow slot in the closed and open positions is.
- Pressure wave valves of the type mentioned and known at the outset are designed in the form of slot valves. They consist of two outer plates with opposite openings and a movable middle plate, also with slots that are moved by mechanical movement so that the slots no longer match.
- the adjustment drive must retract the middle plate and / or a return spring must be provided in addition to the plate.
- a quick-closing device for air outlet openings of shelters, a quick-closing device is known according to CH-A-427 514, with which external pressure or suction waves are intercepted.
- the at least one air passage slot is delimited by two frames, which are arranged with respect to one between them strip-shaped closing part have concave seating surfaces for the closing part, which rests against the one pair of seating surfaces during a pressure wave and against the other pair of seating surfaces during a suction wave and thereby closes the air passage slot.
- This is, so to speak, a flutter valve which, for this reason alone, is not suitable for the present purpose, quite apart from the fact that it cannot be opened and closed in a targeted or controlled manner.
- the invention is based on the object of designing and improving such a valve in such a way that the opening and closing movements of the closing element can take place practically without friction and that the closing element automatically moves into its open position after the closing load has been eliminated defers.
- a quick-closing valve in that the edges which laterally delimit the at least one throughflow slot are convexly curved with respect to the inflow direction and behind these edges the closing element is designed and arranged in the form of a likewise convex but weakly curved spring leaf which its length corresponds at least to the length of the convexly curved edges of the throughflow slot and is held on the frame with one end and is displaceably guided on the frame with its other end region.
- the control pulse for actuating the actuator which can be a small pneumatic cylinder or an electromagnetic drive as before, is also supplied as before by a pressure wave sensor, which can be a so-called pressure wave fan, for example, and which, as is known, does not require any further explanation here.
- the convexly curved edges are designed as edges of webs arranged in the frame, the webs forming flank legs of M-profiles arranged in the frame. This is not only favorable for the outflow, but also takes into account that such quick-closing valves generally have a plurality of through-flow slots next to one another.
- an adjusting element which extends transversely to the spring leaf and which is at the top in the open position at the top is fixedly arranged on the frame and is operatively connected to the spring leaf and is coupled to the actuator by its other free end.
- the quick-closing valve according to the invention is explained in more detail below with reference to the drawing of an exemplary embodiment which has a plurality of throughflow slots next to one another.
- the quick-closing valve basically consists of a frame 1 with at least one through-flow slot 2, which is provided with an adjustable closing element 3, which can be brought from an air pressure-dependent adjustment drive 4 to the through-flow slot 2 in the closed and open positions. It is essential for such a quick-release valve that the edges 5 which laterally delimit the at least one through-flow slot 2 (several are shown) and which form the valve seats for the respective spring leaf 3 'are convexly curved with respect to the inflow direction and the closing element 3 behind these edges 5 is designed and arranged in the form of a likewise convex but weakly curved spring leaf 3 ', which corresponds in length L at least to the length of the convexly curved edges 5 of the throughflow slot 2 and is held at one end 6 on the frame 1 and with its other end region 7 on Frame 1 is guided.
- the end region 7 of the spring leaf 3 ' which is displaceably guided on the frame 1 is connected to the Adjustment drive 4 connected, in the illustrated embodiment such that a frame 10 extending transversely to this in the region of the spring leaf 3 'projecting in the open position has an end 11 which is operatively connected to the spring leaf 3' and with its other free end 11 is coupled to the actuator 4.
- the actuator 4 Apart from the fact that such a design could be provided for each existing spring leaf 3 ', it is also possible to detect all spring leaves 3' with the actuating element 10 and to link only one adjusting drive 4 to the actuating element 10, as shown in FIG. 2 .
- this configuration results in a spatially advantageous assignment of the adjustment drive (s) 4, as shown, vertically and in the flow shadow behind the spring leaf (s) 3 '.
- the convexly curved edges 5 are designed as edges of webs 8 arranged in the frame, which form flank legs 8 ′ of M-profiles 9 arranged in the frame. Two adjacent M-profiles 9 thus each delimit a throughflow slot 2 with their flank legs 8 '. As can be seen from the flow arrows in particular in FIG. 1, this results in favorable and largely swirl-free conditions for the outflowing air when the valve is open.
- 2 flow guide elements 13 are arranged in front of the throughflow slots, which are also fastened to the frame 1 in a suitable manner. These flow guide elements 13 can also be designed as snow-repellent air grilles.
- one end 6 of the spring leaf 3 ' is firmly bound in the frame 1 by, for example, folding.
- the weakly convex shape of the spring leaves 3 ' is important insofar as the direction of adjustment against the edges 5 is thus ensured under load.
- flat spring leaves would also be possible, but additional measures would have to be taken to ensure that such spring leaves could only bend towards the edges 5 and be able to rest against them.
Abstract
Description
Die Erfindung betrifft ein Schnellschlußventil zur Anordnung an Ansaug- und Ausblasöffnungen von Belüftungsanlagen, insbesondere schnellfahrender Eisenbahnfahrzeuge, bestehend aus einem Rahmen mit mindestens einem Durchströmschlitz, der mit einem verstellbaren Schließelement versehen ist, das von einem luftdruckabhängig gesteuerten Verstellantrieb zum Durchströmschlitz in Schließ- und Öffnungsstellung bringbar ist.The invention relates to a quick-closing valve for arrangement at intake and blow-out openings of ventilation systems, in particular fast-moving railway vehicles, consisting of a frame with at least one through-flow slot, which is provided with an adjustable closing element, which can be brought from an air pressure-dependent adjustment drive to the through-flow slot in the closed and open positions is.
In schnellfahrenden Eisenbahnfahrzeugen treten bei Tunnelfahrten oder auch bei Zugbegegnungen durch die relativ großen Ansaug- und Ausblasöffnungen der Belüftungsanlagen Druckwellen ins Wageninnere, die für die Fahrgäste unangenehm sind und durch schnelles Schließen dieser Öffnungen bei Auftreten einer Druckwelle auf Werte herabgesetzt werden können, die nicht mehr unangenehm empfunden werden.In high-speed rail vehicles, when traveling through tunnels or when encountering a train, pressure waves enter the interior of the vehicle through the relatively large intake and exhaust openings of the ventilation systems, which are uncomfortable for passengers and can be reduced to values that are no longer unpleasant by quickly closing these openings when a pressure wave occurs be felt.
Druckwellenventile der eingangs genannten und bekannten Art bspw. nach der DE-A-36 18 292 werden in der Form von Schlitzschiebern ausgeführt. Sie bestehen aus zwei äußeren Platten mit gegenüberliegenden Öffnungen und einer beweglichen mittleren Platte, ebenfalls mit Schlitzen, die durch mechanische Bewegung so verschoben wird, daß die Schlitze nicht mehr übereinstimmen.Pressure wave valves of the type mentioned and known at the outset, for example according to DE-A-36 18 292, are designed in the form of slot valves. They consist of two outer plates with opposite openings and a movable middle plate, also with slots that are moved by mechanical movement so that the slots no longer match.
Durch die mechanische Bewegung entsteht an den Platten Reibung und Verschleiß. Außerdem muß der Verstellantrieb die mittlere Platte zurückziehen, und/oder es muß zusätzlich zur Platte eine Rückstellfeder vorgesehen werden.The mechanical movement creates friction and wear on the plates. In addition, the adjustment drive must retract the middle plate and / or a return spring must be provided in addition to the plate.
Für Luftaustrittsöffnungen von Schutzräumen ist nach der CH-A-427 514 eine Schnellschlußvorrichtung bekannt, mit der äußere Druck- oder Sogwellen abgefangen werden. Der mindestens eine Luftdurchlaßschlitz wird dabei von zwei Rahmen begrenzt, die in bezug auf ein zwischen diesen angeordnetes streifenförmiges Schließteil konkave Sitzflächen für das Schließteil aufweisen, das sich bei einer Druckwelle an das eine Sitzflächenpaar und bei einer Sogwelle an das andere Sitzflächenpaar anlegt und dabei den Luftdurchlaßschlitz schließt. Hierbei handelt es sich also gewissermaßen um ein Flatterventil, das schon aus diesem Grunde für den vorliegenden Zweck nicht geeignet ist, ganz abgesehen davon, daß dieses nicht gezielt bzw. gesteuert geöffnet und geschlossen werden kann. Gleiches gilt bei in etwa entsprechender Ausbildung für eine selbsttätige sogenannte Luftstoßsicherung nach der DE-Z.: Die Kälte und Klimatechnik 11/1986, S. 558 und 559.For air outlet openings of shelters, a quick-closing device is known according to CH-A-427 514, with which external pressure or suction waves are intercepted. The at least one air passage slot is delimited by two frames, which are arranged with respect to one between them strip-shaped closing part have concave seating surfaces for the closing part, which rests against the one pair of seating surfaces during a pressure wave and against the other pair of seating surfaces during a suction wave and thereby closes the air passage slot. This is, so to speak, a flutter valve which, for this reason alone, is not suitable for the present purpose, quite apart from the fact that it cannot be opened and closed in a targeted or controlled manner. The same applies to a corresponding training for an automatic so-called air blast protection according to DE-Z .: Die Refrigeration and Air Conditioning 11/1986, p. 558 and 559.
Der Erfindung liegt, ausgehend von einem Schnellschlußventil der gattungsgemäßen Art die Aufgabe zugrunde, ein solches Ventil dahingehend auszubilden und zu verbessern, daß die Öffnungs- und Schließbewegungen des Schließelementes praktisch ohne Reibung erfolgen können und daß sich das Schließelement nach Wegfall der Schließbelastung selbsttätig in seine Öffnungsstellung zurückstellt.Based on a quick-closing valve of the generic type, the invention is based on the object of designing and improving such a valve in such a way that the opening and closing movements of the closing element can take place practically without friction and that the closing element automatically moves into its open position after the closing load has been eliminated defers.
Diese Aufgabe ist mit einem Schnellschlußventil nach der Erfindung dadurch gelöst, daß die den mindestens einen Durchströmschlitz seitlich begrenzenden Ränder in bezug auf die Anströmrichtung konvex gewölbt sind und hinter diesen Rändern das Schließelement in Form eines ebenfalls konvexen aber schwächer gewölbten Federblattes ausgebildet und angeordnet ist, das in seiner Länge mindestens der Länge der konvex gewölbten Ränder des Durchströmschlitzes entspricht und mit einem Ende am Rahmen gehalten und mit seinem anderen Endbereich am Rahmen verschieblich geführt ist.This object is achieved with a quick-closing valve according to the invention in that the edges which laterally delimit the at least one throughflow slot are convexly curved with respect to the inflow direction and behind these edges the closing element is designed and arranged in the form of a likewise convex but weakly curved spring leaf which its length corresponds at least to the length of the convexly curved edges of the throughflow slot and is held on the frame with one end and is displaceably guided on the frame with its other end region.
Da das Federblatt bei gegebenem Betätigungsimpuls lediglich gegen die konvex gewölbten Ränder des Durchströmschlitzes angelegt wird und aus der angelegten Schließstellung bei Aufhebung der Schließbelastung in die Öffnungsstellung zurückschnellt und dabei nur mit seinen Enden mit dem Rahmen in Verbindung steht, ist die Reibung im Vergleich zu Schieberventilen ganz wesentlich reduziert.Since the spring leaf is only applied against the convexly curved edges of the throughflow slot for a given actuation pulse and jumps back from the applied closed position when the closing load is released into the open position and only with its ends is connected to the frame, the friction is significantly reduced compared to slide valves.
Der Steuerimpuls für die Betätigung des Stellantriebes, der wie bisher ein kleiner Pneumatikzylinder sein kann oder ein elektromagnetischer Antrieb, wird ebenfalls wie bisher durch einen Druckwellensensor geliefert, der bspw. ein sogenannter Druckwellenvetilator sein kann und der, da bekannt, hier keiner näheren Erläuterung bedarf.The control pulse for actuating the actuator, which can be a small pneumatic cylinder or an electromagnetic drive as before, is also supplied as before by a pressure wave sensor, which can be a so-called pressure wave fan, for example, and which, as is known, does not require any further explanation here.
Vorteilhafte weitere Ausgestaltungen bestehen in Folgendem:
Der verschieblich am Rahmen geführte Endbereich des Federblattes ist mit dem Verstellantrieb verbunden. Dies ist günstiger als den Verstellantrieb etwa mittig am Federblatt anzukoppeln, was grundsätzlich auch möglich wäre.Advantageous further developments consist in the following:
The end region of the spring leaf, which is displaceably guided on the frame, is connected to the adjustment drive. This is cheaper than coupling the adjustment drive approximately in the middle of the spring leaf, which would in principle also be possible.
Die konvex gewölbten Ränder sind als Ränder von im Rahmen angeordneten Stegen ausgebildet, wobei die Stege Flankenschenkel von im Rahmen angeordneten M-Profilen bilden. Dies ist nicht nur abströmgünstig, sondern nimmt auch Rücksicht darauf, daß derartige Schnellschlußventile in der Regel nebeneinander mehrere Durchströmschlitze aufweisen.The convexly curved edges are designed as edges of webs arranged in the frame, the webs forming flank legs of M-profiles arranged in the frame. This is not only favorable for the outflow, but also takes into account that such quick-closing valves generally have a plurality of through-flow slots next to one another.
Ferner ist am Rahmen im Bereich des in Öffnungsstellung oben stehenden Federblattes ein sich zu diesem quer erstreckenden Stellelement mit einem Ende fest angeordnet, das mit dem Federblatt in Wirkverbindung und mit seinem anderen freien Ende mit dem Stellantrieb gekoppelt ist. Dies sorgt nicht nur für eine günstige Anlenkung des Stellantriebes zum Federblatt, sondern mit diesem noch näher zu erläuternden Stellelement können alle zu einer ganzen Durchströmschlitzreihe gehörenden Federblätter erfaßt werden, was bedeutet, daß für alle Federblätter nur ein Stellantrieb erforderlich ist.Furthermore, an adjusting element which extends transversely to the spring leaf and which is at the top in the open position at the top is fixedly arranged on the frame and is operatively connected to the spring leaf and is coupled to the actuator by its other free end. This not only ensures a favorable articulation of the actuator to the spring leaf, but with this actuating element, which will be explained in more detail, all spring leaves belonging to a whole row of through-flow slots can be detected, which means that only one actuator is required for all spring leaves.
Das erfindungsgemäße Schnellschlußventil wird nachfolgend anhand der zeichnerischen Darstellung eines Ausführungsbeispieles näher erläutert, das nebeneinander mehrere Durchströmschlitze aufweist.The quick-closing valve according to the invention is explained in more detail below with reference to the drawing of an exemplary embodiment which has a plurality of throughflow slots next to one another.
Es zeigt schematisch
- Fig. 1
- einen Schnitt durch das Schnellschlußventil längs Linie I-I in Fig. 2;
- Fig. 2
- einen Schnitt durch das Schnellschlußventil längs Linie II-II in Fig. 1 und
- Fig. 3
- eine vereinfachte und perspektivische Darstellung des Schnellschlußventiles.
- Fig. 1
- a section through the quick-closing valve along line II in Fig. 2;
- Fig. 2
- a section through the quick-closing valve along line II-II in Fig. 1 and
- Fig. 3
- a simplified and perspective view of the quick-closing valve.
Das Schnellschlußventil besteht grundsätzlich aus einem Rahmen 1 mit mindestens einem Durchströmschlitz 2, der mit einem verstellbaren Schließelement 3 versehen ist, das von einem luftdruckabhängig gesteuerten Verstellantrieb 4 zum Durchströmschlitz 2 in Schließ- und Öffnungsstellung bringbar ist. Wesentlich für ein solches Schnellverschlußventil ist nun, daß die den mindestens einen Durchströmschlitz 2 (dargestellt sind mehrere) seitlich begrenzenden und die Ventilsitze für das jeweilige Federblatt 3' bildenden Ränder 5 in bezug auf die Anströmrichtung konvex gewölbt sind und hinter diesen Rändern 5 das Schließelement 3 in Form eines ebenfalls konvexen, aber schwächer gewölbten Federblattes 3' ausgebildet und angeordnet ist, das in seiner Länge L mindestens der Länge der konvex gewölbten Ränder 5 des Durchströmschlitzes 2 entspricht und mit einem Ende 6 am Rahmen 1 gehalten und mit seinem anderen Endbereich 7 am Rahmen 1 verschieblich geführt ist.The quick-closing valve basically consists of a
Wie aus Fig. 2 ersichtlich, ist der verschieblich am Rahmen 1 geführte Endbereich 7 des Federblattes 3' mit dem Verstellantrieb 4 verbunden, und zwar beim dargestellten Ausführungsbeispiel derart, daß am Rahmen 1 im Bereich des in Öffnungsstellung überstehenden Federblattes 3' ein sich zu diesem quer erstreckenden Stellelement 10 mit einem Ende 11 fest angeordnet ist, das mit dem Federblatt 3' in Wirkverbindung und mit seinem anderen freien Ende 11 mit dem Stellantrieb 4 gekoppelt ist. Abgesehen davon, daß eine solche Ausbildung für jedes vorhandene Federblatt 3' vorgesehen werden könnte, ist es aber auch möglich, mit dem Stellelement 10 alle Federblätter 3' zu erfassen und am Stellelement 10, wie in Fig. 2 dargestellt, nur einen Verstellantrieb 4 anzulenken. Im übrigen ergibt sich durch diese Ausgestaltung eine auch räumlich vorteilhafte Zuordnung des bzw. der Verstellantriebe 4 wie dargestellt vertikal und im Strömungsschatten hinter dem bzw. den Federblättern 3'.As can be seen from FIG. 2, the
Wie insbesondere aus Fig. 3 deutlich wird, sind beim Ausführungsbeispiel die konvex gewölbten Ränder 5 als Ränder von im Rahmen angeordneten Stegen 8 ausgebildet, die Flankenschenkel 8' von im Rahmen angeordneten M-Profilen 9 bilden. Zwei benachbarte M-Profile 9 begrenzen also mit ihren Flankenschenkeln 8' jeweils einen Durchströmschlitz 2. Wie die Strömungspfeile insbesondere in Fig. 1 erkennen lassen, ergeben sich dadurch günstige und weitgehend verwirbelungsfreie Verhältnisse für die abströmende Luft bei geöffnetem Ventil. In Anströmrichtung sind, wie in Fig. 1 dargestellt, vor den Durchströmschlitzen 2 Strömungsleitelemente 13 angeordnet, die in geeigneter Weise ebenfalls am Rahmen 1 befestigt werden. Diese Strömungsleitelemente 13 können dabei auch als schneeabweisende Luftgitter ausgebildet sein.As is particularly clear from FIG. 3, in the exemplary embodiment the convexly
Wie aus Fig. 2 ersichtlich, ist das eine Ende 6 des Federblattes 3' durch bspw. Einfalzung fest im Rahmen 1 eingebunden. Für die Führung des überstehenden Endbereiches 7 sind insbesondere bei einer Kopplung mit dem Stellelement 10 noch nicht einmal besondere Ausgestaltungen des Rahmens 1 in diesem Bereich erforderlich, da sich dort die Federblätter 3' einfach anlegen. Die schwach konvexe Formgebung der Federblätter 3' hat insofern Bedeutung, als damit bei Belastung die Verstellrichtung gegen die Ränder 5 sichergestellt ist. Insofern wären auch ebene Federblätter möglich, dabei müßte aber durch Zusatzmaßnahmen dafür gesorgt werden, daß sich solche Federblätter bei Belastung nur zu den Rändern 5 hin ausbiegen und an diese anlegen können.As can be seen from FIG. 2, one
Claims (6)
- A quick-acting valve for installation on intake and exhaust openings of ventilation systems, in particular, of rapid railway vehicles, comprising a frame (1) provided with at least one passage slot (2) furnished with an adjustable closure element (3) which relative to the passage slot (2) can be placed into closing and opening positions by a servo drive (4) controlled in response to air pressure,
characterized in
that the edges (5) laterally confining at least one passage slot (2) relative to the in-flow direction are of a convex curvature and that arranged behind the said edges (5) is the closure element (3) designed in the form of an equally convex yet less curved spring leaf (3') the length (L) of which corresponds at least to the length of the convex-curved edges (5) of the passage slot (2) and which with one end (6) thereof is held on the frame (1) and with the other end region (7) thereof is displaceably guided on the frame (1). - A valve according to claim 1,
characterized in
that the end region (7) of the spring leaf (3') displaceably guided on frame (1) is connected to the servo drive (4). - A valve according to claims 1 or 2,
chacterized in
that the convex-curved edges (5) are edges of bridges (8) arranged within the frame (1). - A valve according to claim 3,
characterized in
that the bridges (8) are formed as flank legs (8') of M-profiles (9) arranged within the frame (1). - A valve according to any one of claims 1 to 4,
characterized in
that a control element (10) extending in a direction transverse of the spring leaf (3') with one end (11) is firmly arranged on the frame (1) in the area of the spring leaf (3') protruding in the opening position, with the said end (11) cooperating with the spring leaf (3') and with the other free end (11) thereof being coupled to the servo drive (4). - A valve according to any one of claims 1 to 5,
characterized in
that a flow conducting element (13) is arranged before at least one passage slot (2) at distance therefrom and in the in-flow direction thereof.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4238942 | 1992-11-19 | ||
| DE4238942A DE4238942C1 (en) | 1992-11-19 | 1992-11-19 | Quick-closing valve for arrangement at intake and exhaust openings of ventilation systems |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0598210A1 EP0598210A1 (en) | 1994-05-25 |
| EP0598210B1 true EP0598210B1 (en) | 1995-09-27 |
Family
ID=6473205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP93116114A Expired - Lifetime EP0598210B1 (en) | 1992-11-19 | 1993-10-06 | Fast dosing valve for mounting at inlet and outlet parts of ventilation installations |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US5351933A (en) |
| EP (1) | EP0598210B1 (en) |
| KR (1) | KR100286852B1 (en) |
| CN (1) | CN1030495C (en) |
| AT (1) | ATE128423T1 (en) |
| DE (1) | DE4238942C1 (en) |
| ES (1) | ES2078786T3 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8737431B2 (en) | 2004-04-21 | 2014-05-27 | Solarflare Communications, Inc. | Checking data integrity |
| US9063771B2 (en) | 2005-03-10 | 2015-06-23 | Solarflare Communications, Inc. | User-level re-initialization instruction interception |
| US9552225B2 (en) | 2005-03-15 | 2017-01-24 | Solarflare Communications, Inc. | Data processing system with data transmit capability |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4404032C1 (en) * | 1994-02-09 | 1995-03-23 | Hagenuk Fahrzeugklima Gmbh | Pressure-surge protection valve |
| GB0404696D0 (en) | 2004-03-02 | 2004-04-07 | Level 5 Networks Ltd | Dual driver interface |
| DE202014104358U1 (en) * | 2014-09-15 | 2014-12-12 | Faiveley Transport Leipzig Gmbh & Co. Kg | Device for combined pressure protection and air volume control in the interior of rail vehicles |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3057373A (en) * | 1959-10-19 | 1962-10-09 | Parker Hannifin Corp | Flow limiting valve |
| US3139108A (en) * | 1962-09-24 | 1964-06-30 | Klingman Sanford | Pressure operated valve means |
| CH427514A (en) * | 1963-04-18 | 1966-12-31 | Luwa Ag | Quick-closing device on air passage openings for shelters |
| CH449433A (en) * | 1966-05-16 | 1967-12-31 | Luwa Ag | Quick-closing device on air passage openings for shelters |
| US4316408A (en) * | 1980-05-19 | 1982-02-23 | Carrier Corporation | Damper assembly for use with an air conditioning system |
| CA1266199A (en) * | 1985-01-28 | 1990-02-27 | Waldemar H. Greiner | Damper construction |
| DE3618292C3 (en) * | 1986-05-30 | 1995-12-07 | Rainer Herma | Motor-operated pressure valve for cabins of railroad cars |
| EP0315108B1 (en) * | 1987-11-02 | 1993-10-06 | Hitachi, Ltd. | Ventilating equipment for rolling stock |
| IT1216548B (en) * | 1988-04-05 | 1990-03-08 | Italarms S P A | VALVE FOR THE PROTECTION OF AERATION OPENINGS OF ENVIRONMENTS IN GENERAL AGAINST THE WAVES GENERATED BY AN EXPLOSION. |
| US5106052A (en) * | 1991-05-09 | 1992-04-21 | Dipti Datta | Air damper apparatus |
| US5139048A (en) * | 1991-10-11 | 1992-08-18 | Armstrong George W | Direct powered gate valve |
-
1992
- 1992-11-19 DE DE4238942A patent/DE4238942C1/en not_active Expired - Fee Related
-
1993
- 1993-10-06 AT AT93116114T patent/ATE128423T1/en not_active IP Right Cessation
- 1993-10-06 ES ES93116114T patent/ES2078786T3/en not_active Expired - Lifetime
- 1993-10-06 EP EP93116114A patent/EP0598210B1/en not_active Expired - Lifetime
- 1993-11-10 US US08/150,470 patent/US5351933A/en not_active Expired - Fee Related
- 1993-11-18 CN CN93114788A patent/CN1030495C/en not_active Expired - Fee Related
- 1993-11-18 KR KR1019930024598A patent/KR100286852B1/en not_active IP Right Cessation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8737431B2 (en) | 2004-04-21 | 2014-05-27 | Solarflare Communications, Inc. | Checking data integrity |
| US9063771B2 (en) | 2005-03-10 | 2015-06-23 | Solarflare Communications, Inc. | User-level re-initialization instruction interception |
| US9552225B2 (en) | 2005-03-15 | 2017-01-24 | Solarflare Communications, Inc. | Data processing system with data transmit capability |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2078786T3 (en) | 1995-12-16 |
| EP0598210A1 (en) | 1994-05-25 |
| CN1030495C (en) | 1995-12-13 |
| CN1088882A (en) | 1994-07-06 |
| DE4238942C1 (en) | 1994-01-05 |
| KR940011273A (en) | 1994-06-20 |
| US5351933A (en) | 1994-10-04 |
| ATE128423T1 (en) | 1995-10-15 |
| KR100286852B1 (en) | 2001-04-16 |
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