EP2715136B1 - Compressor unit - Google Patents

Compressor unit Download PDF

Info

Publication number
EP2715136B1
EP2715136B1 EP12718223.6A EP12718223A EP2715136B1 EP 2715136 B1 EP2715136 B1 EP 2715136B1 EP 12718223 A EP12718223 A EP 12718223A EP 2715136 B1 EP2715136 B1 EP 2715136B1
Authority
EP
European Patent Office
Prior art keywords
pressure relief
relief valve
compressor unit
compressor
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.)
Active
Application number
EP12718223.6A
Other languages
German (de)
French (fr)
Other versions
EP2715136A2 (en
Inventor
Rainer Detering
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.)
Continental Reifen Deutschland GmbH
Original Assignee
Continental Reifen Deutschland 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 Continental Reifen Deutschland GmbH filed Critical Continental Reifen Deutschland GmbH
Publication of EP2715136A2 publication Critical patent/EP2715136A2/en
Application granted granted Critical
Publication of EP2715136B1 publication Critical patent/EP2715136B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/125—Cylinder heads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/10—Adaptations or arrangements of distribution members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/02—Stopping, starting, unloading or idling control
    • F04B49/03—Stopping, starting, unloading or idling control by means of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/08—Regulating by delivery pressure

Definitions

  • the invention relates to a compressor unit in a portable compressed air source, which has a reciprocating compressor driven by a thrust crank mechanism or a crank mechanism with a piston oscillating in a cylinder and delimiting a compression space, the cylinder being closed on the output side by a cylinder head with an outlet valve
  • Such compressor units are e.g. B. with or as part of devices for sealing and inflating inflatable objects, in particular for sealing and inflating motor vehicle tires required (breakdown sets).
  • These portable and light devices contain the compressor unit as a pressurized gas source, furthermore have a sealant container for an automatic sealant that can be filled into the inflatable object, a valve and distributor unit for sealant and pressurized gas, and have an inlet line that can be connected to the pressurized gas source and one to the inflatable one Provide the object with connectable outlet pipe.
  • the DE 44 29 097 A1 shows such a compressor unit or a piston compressor with a conventional exhaust valve in the prior art, which is also the only "pressure relief valve" for the interior of the compressor.
  • Such an outlet valve consists of a spring-loaded disk, which covers an outlet bore of the compression chamber in the cylinder and lifts up against the spring when there is appropriate pressure in the compression chamber.
  • this increases the size of devices for sealing and inflating inflatable objects.
  • an enlarged installation space stands in the way of the development trend of making such devices and in particular their compressors as space-saving as possible.
  • the US 2005/191193 A1 discloses a compressor, to the compression space of which a further chamber connects, which contains an outlet valve and a pressure relief valve.
  • the US 5,947,696 discloses a compressor for inflating a car tire with a compression chamber from which two valves, an exhaust valve and a relief valve extend.
  • a pressure relief valve between the distributor unit and the outlet valve can lead to pressure conditions occurring during the pumping of sealant, which leads to an undesirable sealant backflow which makes the compressor unusable.
  • a check valve in the downstream distribution unit between the outlet valve and the tire valve prevents the existing pressure from remaining measurable when the compressor is switched off using the integrated pressure gauge. Accordingly, an additional check valve between the compressor and manometer does not solve the problem satisfactorily.
  • the object of the invention was therefore to provide a pressure relief valve which ensures the limitation of the maximum pressure in the compression chamber while at the same time avoiding sealant backflow and thus increases the service life and reliability of the compressor.
  • the cylinder head has a separate pressure relief valve for the compression chamber which is arranged parallel to the exhaust valve.
  • the pressure relief valve has a pressure relief valve body and / or a pressure relief valve seat made of elastomeric material, preferably rubber.
  • a pressure relief valve body made of elastomeric material a very quickly working valve of low mass can be provided, which can even be designed in such a way that its own elasticity provides sufficient spring force to fix the pressure relief valve body on the pressure relief valve seat until a certain pressure is reached.
  • a pressure relief valve seat made of elastomeric material into which the pressure relief valve body can press, additional elasticity / spring force is easily created.
  • a further advantageous embodiment in this sense is that the pressure relief valve body is spring-loaded, or is spring-loaded in addition to its own elasticity.
  • the pressure relief valve has a check valve with a spring-loaded steel ball as the pressure relief valve body.
  • This is a particularly simple and tried and tested version that can be easily purchased as an accessory.
  • the steel ball valve construction also enables use for metal cylinder heads and allows higher operating temperatures.
  • a further advantageous embodiment consists in that the preload, that is to say the “seat pressure” of the pressure relief valve body on the pressure relief valve seat, is adjustable. In the simplest version, this is done, for example, by an adjusting screw influencing the spring force.
  • the pressure relief valve opening has a diameter between 1 and 5 mm, preferably 1.5 to 3 mm. This makes it easy to influence the design for spring action and the amount of passage when opening.
  • Such a compressor unit is particularly suitable for a device for sealing and inflating inflatable objects, in particular for sealing and inflating motor vehicle tires.
  • the Fig. 1 shows a compressor unit with slider crank mechanism, engine and cylinder head in two views, for a device for sealing and inflating motor vehicle tires.
  • the compressor unit is provided with a pressure relief valve arranged according to the invention.
  • the fast-running compressor unit 1 is driven by a motor 3 via a thrust crank mechanism 2.
  • the cylinder head 4 has various exhaust and connection devices, including a pressure gauge 5, and also forms the exhaust valve for the compression space 8, namely through the tubular exhaust valve housing 6 for the exhaust valve holder 7, with which an elastic exhaust valve body 9 is fixed centrally on the exhaust valve seat 10 is which on cylinder-side end of the housing 6 is formed.
  • the pressure relief valve 11 is designed here as a check valve and has a pressure relief valve body 12 designed as a spring-loaded steel ball.
  • the preload ie the "seat pressure" of the pressure relief valve body 12 on the pressure relief valve seat 14, can be adjusted via the adjusting screw 13 influencing the spring force.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Compressor (AREA)
  • Safety Valves (AREA)
  • Check Valves (AREA)

Description

Die Erfindung betrifft eine Kompressoreinheit in einer tragbaren Druckluftquelle, welche einen über einen Schubkurbeltrieb bzw. ein Schubkurbelgetriebe angetriebenen Hubkolbenverdichter mit einem in einem Zylinder oszillierend bewegten und einen Kompressionsraum begrenzenden Kolben aufweist, wobei der Zylinder ausgangsseitig durch einen Zylinderkopf mit Auslassventil verschlossenen istThe invention relates to a compressor unit in a portable compressed air source, which has a reciprocating compressor driven by a thrust crank mechanism or a crank mechanism with a piston oscillating in a cylinder and delimiting a compression space, the cylinder being closed on the output side by a cylinder head with an outlet valve

Solche Kompressoreinheiten werden z. B. mit oder als Teil von Vorrichtungen zum Abdichten und Aufpumpen aufblasbarer Gegenstände, insbesondere zum Abdichten und Aufpumpen von Kraftfahrzeugreifen benötigt (Pannensets).Such compressor units are e.g. B. with or as part of devices for sealing and inflating inflatable objects, in particular for sealing and inflating motor vehicle tires required (breakdown sets).

Diese tragbaren und leichten Vorrichtungen beinhalten die Kompressoreinheit als Druckgasquelle auf, weisen weiterhin einen Dichtmittelbehälter für ein in den aufblasbaren Gegenstand einfüllbares selbsttätiges Dichtmittel auf, eine Ventil- und Verteilereinheit für Dichtmittel und Druckgas und sind mit einer an die Druckgasquelle anschließbaren Einlassleitung und einer an den aufblasbaren Gegenstand anschließbaren Auslassleitung versehen.These portable and light devices contain the compressor unit as a pressurized gas source, furthermore have a sealant container for an automatic sealant that can be filled into the inflatable object, a valve and distributor unit for sealant and pressurized gas, and have an inlet line that can be connected to the pressurized gas source and one to the inflatable one Provide the object with connectable outlet pipe.

Die DE 44 29 097 A1 zeigt eine solche Kompressoreinheit bzw. einen Kolbenverdichter mit einem im Stand der Technik üblichen Auslassventil, welches gleichzeitig das einzige "Überdruckventil" für den Innenraum des Kompressors ist. Ein solches Auslassventil besteht aus einer federbelasteten Scheibe, welche eine Auslassbohrung des Verdichtungsraums im Zylinder abdeckt und bei entsprechendem Druck im Verdichtungsraum gegen die Feder abhebt. Abgesehen davon, dass ein solches Auslassventil für sehr hohe Öffnungsfrequenzen, d.h. für sehr schnell bewegte Kolbenkompressoren mit kurzem Hub, nur bedingt geeignet ist, ist es hier erforderlich, einen bestimmten Rohrlängenabstand zum Dichtmittelbehälter bzw. zur zugehörigen Verteilereinheit einzuhalten, um einen Rückfluss von Dichtmittel in den Kompressionsraum/Druckraum zu verhindern. Dies erhöht insgesamt die Baugröße von Vorrichtungen zum Abdichten und Aufpumpen aufblasbarer Gegenstände. Ein vergrößerter Bauraum steht aber dem Entwicklungstrend entgegen, solche Vorrichtungen und insbesondere deren Kompressoren möglichst platzsparend zu gestalten.The DE 44 29 097 A1 shows such a compressor unit or a piston compressor with a conventional exhaust valve in the prior art, which is also the only "pressure relief valve" for the interior of the compressor. Such an outlet valve consists of a spring-loaded disk, which covers an outlet bore of the compression chamber in the cylinder and lifts up against the spring when there is appropriate pressure in the compression chamber. Apart from the fact that such an outlet valve for very high opening frequencies, ie for very fast moving Piston compressors with a short stroke are only suitable to a limited extent, it is necessary to maintain a certain pipe length distance to the sealant container or the associated distributor unit in order to prevent sealant from flowing back into the compression / pressure chamber. Overall, this increases the size of devices for sealing and inflating inflatable objects. However, an enlarged installation space stands in the way of the development trend of making such devices and in particular their compressors as space-saving as possible.

Die US 2005/191193 A1 offenbart einen Kompressor, an dessen Kompressionsraum sich ein eine weitere Kammer anschließt, welche ein Auslassventil und ein Überdruckventil enthält.The US 2005/191193 A1 discloses a compressor, to the compression space of which a further chamber connects, which contains an outlet valve and a pressure relief valve.

Die US 5 947 696 offenbart einen Kompressor zum Aufpumpen eines Autoreifens mit einer Kompressionskammer, von welcher zwei Ventile, ein Auslassventil und ein Überdruckventil abgehen.The US 5,947,696 discloses a compressor for inflating a car tire with a compression chamber from which two valves, an exhaust valve and a relief valve extend.

Handelsübliche Pannensets zur Reifenabdichtung, die über einen Kleinkompressor verfügen, mit dessen Hilfe Reifen aufgepumpt werden können, nutzen zur Begrenzung des Maximaldruckes in der Regel also entweder das Auslassventil im Kompressionsraum in Verbindung mit einem entsprechend ausgelegten Totraum oder aber ein Ventil in der nachfolgenden Verteilereinheit, welches somit zwischen Auslassventil und Reifenventil bzw. zwischen Kompressor und Manometer angeordnet ist.Commercially available puncture sets for tire sealing, which have a small compressor that can be used to inflate tires, generally use either the outlet valve in the compression chamber in connection with an appropriately designed dead space or a valve in the subsequent distribution unit, which limits the maximum pressure is thus arranged between the exhaust valve and the tire valve or between the compressor and the manometer.

Die Anordnung eines Überdruckventils zwischen Verteilereinheit und Auslassventil kann dazu führen, dass beim Pumpen von Dichtmittel Druckzustände entstehen können, die dazu führen, dass es zu einem unerwünschten Dichtmittelrückfluß kommt, der den Kompressor unbrauchbar macht. Andererseits verhindert ein Rückschlagventil in der nachfolgenden Verteilereinheit zwischen Auslassventil und Reifenventil, dass bei abgeschaltetem Kompressor mit dem integrierten Manometer der bestehende Druck messbar bleibt. Dementsprechend löst ein zusätzliches Rückschlagventil zwischen Kompressor und Manometer das Problem auch nicht zufriedenstellend.The arrangement of a pressure relief valve between the distributor unit and the outlet valve can lead to pressure conditions occurring during the pumping of sealant, which leads to an undesirable sealant backflow which makes the compressor unusable. On the other hand, a check valve in the downstream distribution unit between the outlet valve and the tire valve prevents the existing pressure from remaining measurable when the compressor is switched off using the integrated pressure gauge. Accordingly, an additional check valve between the compressor and manometer does not solve the problem satisfactorily.

Für die Erfindung bestand daher die Aufgabe ein Überdruckventil bereitzustellen, welches die Begrenzung des Maximaldrucks im Kompressionsraum bei gleichzeitiger Vermeidung von Dichtmittelrückfluß gewährleistet und damit Gebrauchsdauer und Zuverlässigkeit des Kompressors erhöht.The object of the invention was therefore to provide a pressure relief valve which ensures the limitation of the maximum pressure in the compression chamber while at the same time avoiding sealant backflow and thus increases the service life and reliability of the compressor.

Gelöst wird diese Aufgabe durch die Merkmale des Hauptanspruchs. Weitere vorteilhafte Ausbildungen sind in den Unteransprüchen offenbart.This task is solved by the features of the main claim. Further advantageous developments are disclosed in the subclaims.

Dabei weist der Zylinderkopf ein parallel zum Auslassventil angeordnetes separates Überdruckventil für den Kompressionsraum auf.The cylinder head has a separate pressure relief valve for the compression chamber which is arranged parallel to the exhaust valve.

Damit erfolgt die Absicherung/Einstellung des Maximaldrucks schon im Kompressionsraum (Zylinder). Dadurch muss die nachfolgende Konstruktion nicht mehr den Maximaldrücken standhalten, was zu einer Material- & Kostenersparnis führt, da diese nachgelagerten Teile nicht so aufwendig konstruiert werden müssen. Der Rückfluss von Dichtmittel bei Pumpsystemen ist mit einer solchen Kompressoreinheit ausgeschlossen. Das Auslassventil trennt nämlich das Fördersystem vom Überdruckventil. Dies ermöglicht eine Dichtmittelpumplösung, die auch in Verbindung mit niedrigen Maximaldrücken und der Verwendung von hochviskosem Dichtmittel funktioniert. Als niedrige Maximaldrücke werden solche bezeichnet, die erheblich unter den heute üblichen Drücken von 600 bis 800 kPa liegen.This ensures that the maximum pressure is already set / set in the compression chamber (cylinder). As a result, the subsequent construction no longer has to withstand the maximum pressures, which leads to material and cost savings, since these downstream parts do not have to be constructed in such a complex manner. The return flow of sealant in pump systems is excluded with such a compressor unit. The outlet valve separates the delivery system from the pressure relief valve. This enables a sealant pump solution that also works in conjunction with low maximum pressures and the use of highly viscous sealant. Low maximum pressures are those that are considerably below the pressures of 600 to 800 kPa that are common today.

Eine vorteilhafte Weiterbildung besteht darin, dass das Überdruckventil einen Überdruckventilkörper und/oder einen Überdruckventilsitz aus elastomerem Material, vorzugsweise aus Gummi, aufweist. Bei einem Überdruckventilkörper aus elastomerem Material kann ein sehr schnell arbeitendes Ventil geringer Masse bereitgestellt werden, das sogar so ausgelegt werden kann, dass die eigene Elastizität genügend Federkraft bereitstellt, um den Überdruckventilkörper bis zum Erreichen eines bestimmtem Drucks auf dem Überdruckventilsitz zu fixieren. Bei einem Überdruckventilsitz aus elastomerem Material, in den sich der Überdruckventilkörper eindrücken kann, entsteht auf einfache Weise zusätzliche Elastizität / Federkraft.An advantageous development is that the pressure relief valve has a pressure relief valve body and / or a pressure relief valve seat made of elastomeric material, preferably rubber. In the case of a pressure relief valve body made of elastomeric material, a very quickly working valve of low mass can be provided, which can even be designed in such a way that its own elasticity provides sufficient spring force to fix the pressure relief valve body on the pressure relief valve seat until a certain pressure is reached. With a pressure relief valve seat made of elastomeric material, into which the pressure relief valve body can press, additional elasticity / spring force is easily created.

Eine weitere vorteilhafte Ausbildung in diesem Sinne besteht darin, dass der Überdruckventilkörper federbelastet ist, bzw. zusätzlich zur eigenen Elastizität federbelastet ist.A further advantageous embodiment in this sense is that the pressure relief valve body is spring-loaded, or is spring-loaded in addition to its own elasticity.

Eine weitere vorteilhafte Ausbildung besteht darin, dass das Überdruckventil einen als Rückschlagventil mit einer federbelasteten Stahlkugel als Überdruckventilkörper aufweist. Dies ist eine besonders einfache und vielfach bewährte Ausführung, die als Zubehör leicht erworben werden kann. Die Stahlkugelventilkonstruktion ermöglicht den Einsatz auch für Zylinderköpfe aus Metall und lässt höhere Einsatztemperaturen zu.Another advantageous embodiment is that the pressure relief valve has a check valve with a spring-loaded steel ball as the pressure relief valve body. This is a particularly simple and tried and tested version that can be easily purchased as an accessory. The steel ball valve construction also enables use for metal cylinder heads and allows higher operating temperatures.

Eine weitere vorteilhafte Ausbildung besteht darin, dass die Vorspannung, also der "Sitzdruck" des Überdruckventilkörpers auf dem Überdruckventilsitz einstellbar ist. In einfachster Ausführung geschieht dies beispielsweise durch eine die Federkraft beeinflussende Einstellschraube.A further advantageous embodiment consists in that the preload, that is to say the “seat pressure” of the pressure relief valve body on the pressure relief valve seat, is adjustable. In the simplest version, this is done, for example, by an adjusting screw influencing the spring force.

Eine weitere vorteilhafte Ausbildung besteht darin, dass die Überdruckventilöffnung einen Durchmesser zwischen 1 und 5 mm aufweist, vorzugsweise 1,5 bis 3 mm. Damit lässt sich auf einfache Weise die Auslegung auf Federwirkung und Durchlassmenge beim Öffnen beeinflussen.Another advantageous embodiment is that the pressure relief valve opening has a diameter between 1 and 5 mm, preferably 1.5 to 3 mm. This makes it easy to influence the design for spring action and the amount of passage when opening.

Besonders geeignet ist eine solche Kompressoreinheit für eine Vorrichtung zum Abdichten und Aufpumpen aufblasbarer Gegenstände, insbesondere zum Abdichten und Aufpumpen von Kraftfahrzeugreifen.Such a compressor unit is particularly suitable for a device for sealing and inflating inflatable objects, in particular for sealing and inflating motor vehicle tires.

Anhand eines Ausführungsbeispiels soll die Erfindung näher erläutert werden.The invention will be explained in more detail using an exemplary embodiment.

Die Fig. 1 zeigt eine Kompressoreinheit mit Schubkurbelgetriebe, Motor und Zylinderkopf in zwei Ansichten, für eine Vorrichtung zum Abdichten und Aufpumpen von Kraftfahrzeugreifen. Die Kompressoreinheit ist mit einem erfindungsgemäß angeordneten Überdruckventil versehen.The Fig. 1 shows a compressor unit with slider crank mechanism, engine and cylinder head in two views, for a device for sealing and inflating motor vehicle tires. The compressor unit is provided with a pressure relief valve arranged according to the invention.

Die schnell laufende Kompressoreinheit 1 wird über ein Schubkurbelgetriebe 2 durch einen Motor 3 angetrieben. Der Zylinderkopf 4 weist verschiedene Auslass- und Anschlusseinrichtungen auf, unter anderem ein Manometer 5, und bildet auch das Auslassventil für den Kompressionsraum 8, nämlich durch das rohrförmige Auslassventilgehäuse 6 für den Auslassventilhalter 7, mit dem ein elastischer Auslassventilkörper 9 mittig auf dem Auslassventilsitz 10 fixiert ist, welcher am zylinderseitigen Ende des Gehäuses 6 ausgebildet ist.The fast-running compressor unit 1 is driven by a motor 3 via a thrust crank mechanism 2. The cylinder head 4 has various exhaust and connection devices, including a pressure gauge 5, and also forms the exhaust valve for the compression space 8, namely through the tubular exhaust valve housing 6 for the exhaust valve holder 7, with which an elastic exhaust valve body 9 is fixed centrally on the exhaust valve seat 10 is which on cylinder-side end of the housing 6 is formed.

Im Zylinderkopf 4 ist, wie der obere Teil der Fig. 1 deutlich zeigt, ein parallel zum Auslassventil angeordnetes separates Überdruckventil 11 für den Kompressionsraum angeordnet.In the cylinder head 4 is how the upper part of the Fig. 1 clearly shows a separate pressure relief valve 11 arranged parallel to the outlet valve for the compression space.

Das Überdruckventil 11 ist hier als Rückschlagventil ausgebildet ist und weist einen mit einer als federbelastete Stahlkugel ausgebildeten Überdruckventilkörper 12 auf.The pressure relief valve 11 is designed here as a check valve and has a pressure relief valve body 12 designed as a spring-loaded steel ball.

Die Vorspannung also der "Sitzdruck" des Überdruckventilkörpers 12 auf dem Überdruckventilsitz 14 ist über die die Federkraft beeinflussende Einstellschraube 13 einstellbar.The preload, ie the "seat pressure" of the pressure relief valve body 12 on the pressure relief valve seat 14, can be adjusted via the adjusting screw 13 influencing the spring force.

BezugszeichenlisteReference list (Teil der Beschreibung)(Part of the description)

11
KompressoreinheitCompressor unit
22nd
SchubkurbelgetriebeSlider crank gear
33rd
Motorengine
44th
ZylinderkopfCylinder head
55
Manometermanometer
66
AuslassventilgehäuseExhaust valve housing
77
AuslassventilhalterExhaust valve holder
88th
KompressionsraumCompression space
99
AuslassventilkörperExhaust valve body
1010th
AuslassventilsitzExhaust valve seat
1111
ÜberdruckventilPressure relief valve
1212th
ÜberdruckventilkörperPressure relief valve body
1313
EinstellschraubeAdjusting screw
1414
ÜberdruckventilsitzPressure relief valve seat
1515
ÜberdruckventilöffnungPressure relief valve opening

Claims (5)

  1. Compressor unit (1) in a portable compressed-air source of an apparatus for sealing and inflating motor vehicle tyres, which has a reciprocating piston compressor driven by a slider-crank mechanism (2) and having a piston that is oscillated in a cylinder and delimits a compression chamber (8), the cylinder being closed on the output side by a cylinder head (4) having an outlet valve (6, 7, 9), characterized in that the cylinder head (4) has a separate pressure relief valve (11) for the compression chamber (8), which is arranged spatially parallel to the outlet valve (6, 7, 9) and acts parallel to the outlet valve and which already limits the maximum pressure in the compression chamber, the outlet valve separating the delivery system from the pressure relief valve in such a way that a backflow of sealant is ruled out, and the prestressing of the pressure relief valve body (12) on the pressure relief valve seat (14) being adjustable.
  2. Compressor unit according to Claim 1, in which the pressure relief valve (11) has a pressure relief valve body (12) and/or a pressure relief valve seat (14) of elastomeric material, preferably of rubber.
  3. Compressor unit according to Claim 1, in which the pressure relief valve body (12) is spring-loaded.
  4. Compressor unit according to one of Claims 1 to 3, in which the pressure relief valve is formed as a nonreturn valve and has a pressure relief valve body (12) formed as a spring-loaded steel ball.
  5. Compressor unit according to one of Claims 1 to 5, in which the pressure relief valve opening (15) has a diameter of between 1 and 5 mm, preferably 1.5 to 3 mm.
EP12718223.6A 2011-05-30 2012-05-03 Compressor unit Active EP2715136B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011050714A DE102011050714A1 (en) 2011-05-30 2011-05-30 compressor unit
PCT/EP2012/058095 WO2012163618A2 (en) 2011-05-30 2012-05-03 Compressor unit

Publications (2)

Publication Number Publication Date
EP2715136A2 EP2715136A2 (en) 2014-04-09
EP2715136B1 true EP2715136B1 (en) 2020-07-08

Family

ID=46025721

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12718223.6A Active EP2715136B1 (en) 2011-05-30 2012-05-03 Compressor unit

Country Status (5)

Country Link
EP (1) EP2715136B1 (en)
JP (1) JP3195506U (en)
CN (1) CN204003393U (en)
DE (1) DE102011050714A1 (en)
WO (1) WO2012163618A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013107850A1 (en) * 2013-07-23 2015-01-29 Continental Reifen Deutschland Gmbh Compressor with pressure limitation
DE102014205067A1 (en) * 2014-03-19 2015-09-24 Continental Reifen Deutschland Gmbh Device for sealing and inflating inflatable objects

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1649297A (en) * 1922-07-06 1927-11-15 Sullivan Machinery Co Compressor
GB1398039A (en) * 1973-05-25 1975-06-18 Vni I Pk I Neftyanogo Mash Vni Pumping units
GB2073827A (en) * 1980-04-10 1981-10-21 Well Men Ind Co Ltd A combined air compressor and vacuum device
EP0806568A2 (en) * 1996-05-07 1997-11-12 Festo KG Dual drive compressor
US5947696A (en) * 1996-07-31 1999-09-07 Hayes Lemmerz International, Inc. Wheel mounted tire pump with a reciprocating piston
WO2004041649A1 (en) * 2002-10-31 2004-05-21 Interdynamics, Inc. Apparatus for sealing, inflating, and repairing tires
EP1650434A2 (en) * 2004-10-19 2006-04-26 ITG Kompressoren GmbH Multi-stage piston type compressor with reduced power input during idle running
DE102008045730A1 (en) * 2007-09-07 2009-03-19 GM Global Technology Operations, Inc., Detroit Fuel injection pump with low return pulsation
US20090110567A1 (en) * 2007-10-29 2009-04-30 Warn Industries, Inc. Air Compressor
DE102009049094A1 (en) * 2009-10-01 2011-04-07 Alfred Kärcher Gmbh & Co. Kg Pump for a high-pressure cleaning device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3104801A (en) * 1963-09-24 Infinite step controlling device for compressors
DE4429097A1 (en) 1994-08-17 1996-02-22 Thurner Bayer Druckguss Piston compressor for gaseous media
JP3582284B2 (en) * 1997-03-13 2004-10-27 株式会社豊田自動織機 Refrigeration circuit and compressor
TWI235790B (en) * 2004-02-29 2005-07-11 Wen-Shan Chou Miniature simple air filling device
US7422422B2 (en) * 2004-08-24 2008-09-09 Tecumseh Products Company Compressor assembly with pressure relief valve fittings

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1649297A (en) * 1922-07-06 1927-11-15 Sullivan Machinery Co Compressor
GB1398039A (en) * 1973-05-25 1975-06-18 Vni I Pk I Neftyanogo Mash Vni Pumping units
GB2073827A (en) * 1980-04-10 1981-10-21 Well Men Ind Co Ltd A combined air compressor and vacuum device
EP0806568A2 (en) * 1996-05-07 1997-11-12 Festo KG Dual drive compressor
US5947696A (en) * 1996-07-31 1999-09-07 Hayes Lemmerz International, Inc. Wheel mounted tire pump with a reciprocating piston
WO2004041649A1 (en) * 2002-10-31 2004-05-21 Interdynamics, Inc. Apparatus for sealing, inflating, and repairing tires
EP1650434A2 (en) * 2004-10-19 2006-04-26 ITG Kompressoren GmbH Multi-stage piston type compressor with reduced power input during idle running
DE102008045730A1 (en) * 2007-09-07 2009-03-19 GM Global Technology Operations, Inc., Detroit Fuel injection pump with low return pulsation
US20090110567A1 (en) * 2007-10-29 2009-04-30 Warn Industries, Inc. Air Compressor
DE102009049094A1 (en) * 2009-10-01 2011-04-07 Alfred Kärcher Gmbh & Co. Kg Pump for a high-pressure cleaning device

Also Published As

Publication number Publication date
CN204003393U (en) 2014-12-10
DE102011050714A1 (en) 2012-12-06
EP2715136A2 (en) 2014-04-09
WO2012163618A3 (en) 2013-07-18
JP3195506U (en) 2015-01-29
WO2012163618A2 (en) 2012-12-06

Similar Documents

Publication Publication Date Title
EP2912310B1 (en) Piston membrane pump
DE202008001458U1 (en) High pressure valve assembly
DE102009047217A1 (en) Crude piston
EP2038553B1 (en) Cylinder piston arrangement for a fluid pump or a fluid motor
EP2715136B1 (en) Compressor unit
EP3025059B1 (en) Compressor having pressure limitation
DE102006029391A1 (en) Vehicle brake system piston pump, has piston sealant arranged between cylinder and piston, and formed with elastomer sealing unit and metal spring unit, which pushes section of elastomer sealing unit radially against piston
DE102017012218A1 (en) Fuel delivery device for cryogenic fuels
EP3119595B1 (en) Device for sealing and inflating inflatable articles
WO2012163619A1 (en) Compressor having pressure limitation
DE102019207686A1 (en) Hydraulic unit, in particular for supplying a brake circuit of a vehicle brake system with pressure medium under brake pressure
DE10311365B4 (en) Pump with demountable pressure gauge
WO2007068531A1 (en) Compressor unit
DE102015218754B4 (en) high pressure pump
DE102010043371A1 (en) High pressure fuel pump for internal combustion engine, has piston with central bore formed in inlet in a state coaxially to piston longitudinal axis, so that extending hole is formed in housing portion in a state connected to housing
DE102013107585A1 (en) Compressor with pressure limitation
EP1998045A1 (en) Displacement machine with coaxial valves
WO2020216531A1 (en) Compressor unit for compressing air within portable/transportable systems, use of a flutter valve in a compressor unit of this kind and portable/transportable system for sealing and inflating vehicle pneumatic tyres
DE102014010018A1 (en) compressor
DE102011087501A1 (en) Radial piston pump
DE19962128A1 (en) Air conditioning compressor for motor vehicle air conditioning has casing with valve plate having bulged pressure closure sections
DE19859368A1 (en) Air conditioning compressor for motor vehicle air conditioning has casing with valve plate having bulged pressure closure sections
WO2012163584A1 (en) Valve having a one-part valve body
DE102008040239A1 (en) Radial piston pump for feeding fuel into combustion chamber of internal combustion engine, has piston accommodated in hollow cylinder, and drive shaft comprising cross hole that encloses guide column sliding in longitudinal direction
DE102014208908A1 (en) Piston pump for a hydraulic vehicle brake system

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20140120

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20170822

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20200326

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: AT

Ref legal event code: REF

Ref document number: 1288757

Country of ref document: AT

Kind code of ref document: T

Effective date: 20200715

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502012016201

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20200708

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: CONTINENTAL REIFEN DEUTSCHLAND GMBH

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200708

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201109

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201009

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200708

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201008

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200708

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201008

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200708

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200708

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200708

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200708

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200708

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20201108

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200708

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502012016201

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200708

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200708

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200708

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200708

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200708

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200708

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200708

26N No opposition filed

Effective date: 20210409

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200708

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200708

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210531

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210531

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210503

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200708

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20210531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210503

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 1288757

Country of ref document: AT

Kind code of ref document: T

Effective date: 20210503

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210503

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20120503

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200708

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20230526

Year of fee payment: 12

Ref country code: DE

Payment date: 20230531

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20230524

Year of fee payment: 12

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 502012016201

Country of ref document: DE

Owner name: CONTINENTAL REIFEN DEUTSCHLAND GMBH, DE

Free format text: FORMER OWNER: CONTINENTAL REIFEN DEUTSCHLAND GMBH, 30165 HANNOVER, DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200708