DE102015216371B4 - Plastic housing with an ultrasonic welded connection, in particular for a hydrostatic actuator and hydrostatic actuator with this - Google Patents

Plastic housing with an ultrasonic welded connection, in particular for a hydrostatic actuator and hydrostatic actuator with this Download PDF

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Publication number
DE102015216371B4
DE102015216371B4 DE102015216371.7A DE102015216371A DE102015216371B4 DE 102015216371 B4 DE102015216371 B4 DE 102015216371B4 DE 102015216371 A DE102015216371 A DE 102015216371A DE 102015216371 B4 DE102015216371 B4 DE 102015216371B4
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closure piece
section
opening
plastic housing
welded connection
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DE102015216371A1 (en
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Philippe Pilvin
Felix Bunout
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Schaeffler Technologies AG and Co KG
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Schaeffler Technologies AG and Co KG
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Priority to CN201610701168.4A priority patent/CN106481936B/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • 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
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M1/00—Frames or casings of engines, machines or apparatus; Frames serving as machinery beds
    • F16M1/08—Frames or casings of engines, machines or apparatus; Frames serving as machinery beds characterised by being built-up of sheet material or welded parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1222—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a lapped joint-segment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1224—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a butt joint-segment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/302—Particular design of joint configurations the area to be joined comprising melt initiators
    • B29C66/3022—Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined
    • B29C66/30223—Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined said melt initiators being rib-like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/32—Measures for keeping the burr form under control; Avoiding burr formation; Shaping the burr
    • B29C66/322—Providing cavities in the joined article to collect the burr
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5344—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially annular, i.e. of finite length, e.g. joining flanges to tube ends
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/61—Joining from or joining on the inside
    • B29C66/612—Making circumferential joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/56—Stoppers or lids for bottles, jars, or the like, e.g. closures
    • B29L2031/565—Stoppers or lids for bottles, jars, or the like, e.g. closures for containers
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D25/00—Fluid-actuated clutches
    • F16D25/08—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member
    • F16D2025/081—Hydraulic devices that initiate movement of pistons in slave cylinders for actuating clutches, i.e. master cylinders

Abstract

Kunststoffgehäuse (1), insbesondere für einen Hydrostataktor enthaltend einen Gehäuseabschnitt (2) mit einer Öffnung (3) und ein in diese mittels Ultraschall eingebrachtes Verschlussstück (4), wobei eine Ultraschallschweißverbindung (18) an einer Fügezone (7) mit einem ersten Querschnitt (q1) ausgebildet ist, Verschlussstück (4) und Öffnung (3) in eine Fügerichtung (13) der Ultraschallschweißverbindung (18) zu der Fügezone (7) axial beabstandet eine Umlenkeinrichtung (15) für einen Schweißaustrieb der Ultraschallschweißverbindung (18) ausbilden, und die Umlenkeinrichtung (15) aus einem radialen Vorsprung (16) mit einem gegenüber dem ersten Querschnitt (q1) verengten zweiten Querschnitt (q2) der Öffnung (3) und einem gegenüber einem ersten Durchmesser (D1) des Verschlussstücks (4) an der Fügezone (7) verringerten zweiten Durchmesser (D2) des Verschlussstücks (4) gebildet ist, dadurch gekennzeichnet, dass axial zwischen den beiden Durchmessern (D1, D2) eine ringförmige Tasche (17) in dem Verschlussstück (17) vorhanden ist.Plastic housing (1), in particular for a hydrostatic actuator, containing a housing section (2) with an opening (3) and a closure piece (4) introduced into this by means of ultrasound, an ultrasonic welded connection (18) at a joining zone (7) with a first cross section ( q1) is formed, the closure piece (4) and opening (3) in a joining direction (13) of the ultrasonic welded connection (18) to the joining zone (7) axially spaced a deflection device (15) for a weld output of the ultrasonic welded connection (18), and the Deflection device (15) consisting of a radial projection (16) with a second cross section (q2) of the opening (3) that is narrower than the first cross section (q1) and a diameter (D1) of the closure piece (4) at the joining zone (7) ) reduced second diameter (D2) of the closure piece (4) is formed, characterized in that axially between the two diameters (D1, D2) an annular pocket (17) in the Closure piece (17) is present.

Description

Die Erfindung betrifft ein Kunststoffgehäuse und einen Hydrostataktor mit diesem enthaltend einen Gehäuseabschnitt mit einer Öffnung und ein in diese mittels Ultraschall eingebrachtes Verschlussstück, wobei eine Ultraschallschweißverbindung an einer Fügezone mit einem ersten Querschnitt ausgebildet ist.The invention relates to a plastic housing and a hydrostatic actuator with this containing a housing section with an opening and a closure piece introduced into this by means of ultrasound, an ultrasonic weld connection being formed at a joining zone with a first cross section.

Das Fügen von Kunststoffteilen mittels Ultraschall ist bekannt. Hierbei werden die aufeinander gelegten Kunststoffteile unter Druck mit einer Sonotrode in eine Fügerichtung belastet, wobei aufgrund der Ultraschalleinwirkung der Sonotrode die Kunststoffteile an einer Fügezone aufgrund innerer Reibung thermoplastisch aufgeschmolzen und unter Verlagerung der Kunststoffteile entlang der Fügerichtung nach dem Abkühlen der Fügezone miteinander stoffschlüssig verbunden werden. Hierbei kann an der der Sonotrode entgegengesetzten Seite der Fügezone ein Schweißaustrieb aus der Fügezone ausgetragen werden, der sich in entsprechenden Anwendungen schädlich auswirken kann.The joining of plastic parts by means of ultrasound is known. Here, the plastic parts placed on top of one another are loaded under pressure with a sonotrode in a joining direction, whereby due to the ultrasound effect of the sonotrode, the plastic parts are melted thermoplastically at a joining zone due to internal friction and, with displacement of the plastic parts along the joining direction, after the joining zone has cooled down. In this case, on the side of the joining zone opposite the sonotrode, a sweat expulsion can be carried out of the joining zone, which can have harmful effects in corresponding applications.

Aus der DE 27 32 070 A1 ist beispielsweise eine entsprechende Anordnung aus zwei miteinander, zu einem einzelnen Verbundelement verschmolzenen Elementen bekannt. Weiter sind diesbezüglich die Druckschriften DE 10 2011 086 791 A1 und DE 100 38 493 C1 relevanter Stand der Technik.From the DE 27 32 070 A1 For example, a corresponding arrangement of two elements fused to one another to form a single composite element is known. Further in this regard are the publications DE 10 2011 086 791 A1 and DE 100 38 493 C1 relevant state of the art.

Desweitern sind beispielsweise aus den Druckschriften DE 10 2010 047 800 A1 , DE 10 2010 047 801 A1 , DE 102011 105 501 A1 und DE 10 2014 201 791 A1 Hydrostataktoren bekannt. Derartige Hydrostataktoren weisen einen elektrischen Antrieb auf, welcher einen Geberzylinderkolben axial verlagert. Der Geberzylinderkolben begrenzt dabei ein Druckvolumen eines Geberzylinders und ist in einem Kunststoffgehäuse aufgenommen. Durch Verlagerung des Geberzylinderkolbens wird über eine mit dem Kunststoffgehäuse verbundene hydrostatische Strecke ein Nehmerzylinder betätigt, der beispielsweise eine Reibungskupplung betätigt. Das Kunststoffgehäuse weist dabei zumindest eine Öffnung zum Befüllen des Druckvolumens, zum Ausgleich eines im Druckvolumen enthaltenen Druckmittels mit einem Ausgleichsbehälter und zur Verbindung mit der hydrostatischen Strecke oder dergleichen auf. Eine oder mehrere dieser Öffnungen können mittels eines Ultraschallschweißverfahrens eine Ultraschallschweißverbindung mit einem Verschlussstück ausbilden.Furthermore, for example, from the publications DE 10 2010 047 800 A1 , DE 10 2010 047 801 A1 , DE 102011 105 501 A1 and DE 10 2014 201 791 A1 Hydrostatactors known. Such hydrostatic actuators have an electric drive which axially displaces a master cylinder piston. The master cylinder piston limits a pressure volume of a master cylinder and is accommodated in a plastic housing. By moving the master cylinder piston, a slave cylinder is actuated via a hydrostatic path connected to the plastic housing, which, for example, actuates a friction clutch. The plastic housing has at least one opening for filling the pressure volume, for balancing a pressure medium contained in the pressure volume with an expansion tank and for connection to the hydrostatic path or the like. One or more of these openings can form an ultrasonic welded connection with a closure piece by means of an ultrasonic welding process.

Aufgabe der Erfindung ist die vorteilhafte Weiterbildung eines Kunststoffbehälters und eines Hydrostataktors durch Ausbildung einer verbesserten Ultraschallschweißverbindung zwischen Kunststoffgehäuse und Verschlussstück. Insbesondere ist Aufgabe der Erfindung, die Ultraschallschweißverbindung mit weniger in die Umgebung ausstreuendem Schweißaustrieb vorzusehen.The object of the invention is the advantageous further development of a plastic container and a hydrostatic actuator by forming an improved ultrasonic welded connection between the plastic housing and the closure piece. In particular, it is the object of the invention to provide the ultrasonic welded connection with less sweat protruding into the surroundings.

Die Aufgabe wird durch den Gegenstand der Ansprüche 1 und 4 gelöst. Die von diesem abhängigen Ansprüche geben vorteilhafte Ausführungsformen der Gegenstände der Ansprüche 1 und 4 wieder.The object is achieved by the subject matter of claims 1 and 4. The claims which are dependent on this reproduce advantageous embodiments of the subject matter of claims 1 and 4.

Das vorgeschlagene Kunststoffgehäuse ist bevorzugt aus thermoplastischem Kunststoff hergestellt. Das Kunststoffgehäuse weist einen Gehäuseabschnitt mit zumindest einer Öffnung auf, wobei in zumindest eine Öffnung mittels Ultraschall unter Ausbildung einer Ultraschallschweißverbindung ein Verschlussstück eingebracht ist. Die Ultraschallschweißverbindung ist an einer Fügezone mit einem ersten Querschnitt ausgebildet, wobei Verschlussstück und Öffnung in eine Fügerichtung der Ultraschallschweißverbindung zu der Fügezone axial beabstandet eine Umlenkeinrichtung für einen Schweißaustrieb der Ultraschallschweißverbindung ausbilden. Dies bedeutet, dass durch die Ausbildung der Umlenkeinrichtung der Schweißaustrieb so umgelenkt wird, dass dieser nicht durch einen Spalt zwischen Verschlussstück und Gehäuseabschnitt in das Innere des Kunststoffgehäuses gelangt. Der Spalt wie Ringspalt zwischen Verschlussstück und dem Gehäuseabschnitt beziehungsweise dem Innenumfang der Öffnung dient insbesondere dem Ausgleich von Teiletoleranzen des Kunststoffgehäuses und des Verschlussstopfens.The proposed plastic housing is preferably made of thermoplastic plastic. The plastic housing has a housing section with at least one opening, a closure piece being introduced into at least one opening by means of ultrasound with the formation of an ultrasound welded connection. The ultrasonic welded connection is formed at a joining zone with a first cross section, the closure piece and opening in a joining direction of the ultrasonic welded connection axially spaced from the joining zone forming a deflection device for a weld output of the ultrasonic welded connection. This means that the design of the deflecting device deflects the welding output in such a way that it does not get into the interior of the plastic housing through a gap between the closure piece and the housing section. The gap, such as the annular gap, between the closure piece and the housing section or the inner circumference of the opening serves in particular to compensate for part tolerances of the plastic housing and the closure plug.

Gemäß der erfindungsgemäßen Ausführungsform eines Kunststoffgehäuses ist die Umlenkeinrichtung aus einem radialen Vorsprung mit einem gegenüber dem ersten Querschnitt verengten zweiten Querschnitt der Öffnung und einem gegenüber einem ersten Durchmesser des Verschlussstücks an der Fügezone verringerten zweiten Durchmesser des Verschlussstücks gebildet. Dies bedeutet, dass der Spalt zwischen Gehäuseabschnitt und Verschlussstück bezogen auf eine Achse der Fügerichtung radial nach innen verlagert ist und ein direkter axialer Durchtritt des Schweißaustriebs an der Fügezone durch den Spalt in das Innere des Kunststoffgehäuses verhindert wird. Vielmehr wird der Schweißaustrieb an dem Vorsprung in radiale Richtung umgelenkt. Der Schweißaustrieb kann im Moment seiner Entstehung flüssig sein und sich auf dem Weg zum Vorsprung sowie während und nach seiner Umlenkung an dem Vorsprung verfestigen, so dass dieser aufgrund der Größe der entstehenden festen Partikel an einem Durchtritt durch den Spalt gehindert sein kann.According to the embodiment of a plastic housing according to the invention, the deflection device is formed from a radial projection with a second cross section of the opening that is narrowed compared to the first cross section and a second diameter of the closure piece that is reduced compared to a first diameter of the closure piece at the joining zone. This means that the gap between the housing section and the closure piece is displaced radially inward with respect to an axis of the joining direction and a direct axial passage of the weld exit at the joining zone through the gap into the interior of the plastic housing is prevented. Rather, the sweat expulsion is deflected on the projection in the radial direction. The sweat expulsion can be liquid at the moment of its formation and solidify on the way to the projection as well as during and after its deflection on the projection, so that it can be prevented from passing through the gap due to the size of the solid particles formed.

Zur Aufnahme des Schweißaustriebs ist axial zwischen den beiden Durchmessern der Fügezone und einem Stirnbereich des Verschlussstücks eine ringförmige Tasche in dem Verschlussstück vorhanden.Das Verschlussstück kann werkzeugfallend als Spritzgießteil hergestellt sein. Hierbei kann die Tasche werkzeugfallend enthalten sein. Alternativ kann die Tasche spanend ausgebildet sein.An annular pocket is provided in the closure piece axially between the two diameters of the joining zone and an end region of the closure piece in order to accommodate the sweat Injection molded part be made. In this case, the pocket can be included without a tool. Alternatively, the pocket can be machined.

Das Verschlussstück kann als Stopfen ausgebildet sein, der die Öffnung luft- und flüssigkeitsdicht abdichtet. Hierzu ist die Ultraschallschweißverbindung ebenfalls luft- und flüssigkeitsdicht ausgebildet. Das Verschlussstück kann alternativ oder in zumindest einer weiterten Öffnung als Anschlussstück ausgebildet sein. Dies bedeutet, dass an dem Verschlussstück ein Anschluss beispielsweise ein Gewinde oder ein Teil einer Rast- und/oder Schnellverbindung angearbeitet, beispielsweise mit diesem einteilig ausgebildet ist.The closure piece can be designed as a stopper which seals the opening in an airtight and liquid-tight manner. For this purpose, the ultrasonic welded joint is also made air-tight and liquid-tight. The closure piece can alternatively be designed as a connection piece or in at least one wider opening. This means that a connection, for example a thread or a part of a latching and / or quick connection, is incorporated on the closure piece, for example is formed in one piece with it.

Der vorgeschlagene Hydrostataktor enthält einen elektrischen Antrieb und einen hydrostatischen Geberzylinder. Elektrischer Antrieb und Geberzylinder können in einem gemeinsamen Gehäuse wie Kunststoffgehäuse aufgenommen sein. Alternativ kann der elektrische Antrieb ein separates Gehäuse, beispielsweise ein Metallgehäuse aufweisen, wobei der Geberzylinder ein Kunststoffgehäuse aufweist, welches mit dem Gehäuse des elektrischen Antriebs fest verbunden ist. Der elektrische Antrieb treibt mittels eines die Rotorbewegung in eine lineare Bewegung wandelnden Wandlergetriebes einen Geberzylinderloben des Geberzylinders linear an, das heißt verlagert diesen entlang einer Betätigungsachse vor und zurück. Alternativ bewegt dieser den Geberzylinderkolben entgegen der Wirkung eines Energiespeichers nur in eine Richtung, wobei dieser von dem Energiespeicher rückverlagert wird. Das Wandlergetriebe kann zugleich als Übersetzungsgetriebe dienen. Alternativ kann dem Wandlergetriebe ein Übersetzungsgetriebe vor- oder nachgeschaltet sein. Der Geberzylinderkolben begrenzt ein Volumen einer Druckkammer des Geberzylinders, beispielsweise ein von dem Kunststoffgehäuse des Geberzylinders gebildete Druckkammer variabel, so dass bei Verlagerung des Geberzylinderkolbens in der Druckkammer Druck aufgebaut und über eine mit der Druckkammer verbundene hydrostatisch verbundene Strecke ein Nehmerzylinder, beispielsweise zur Betätigung einer Reibungskupplung, betätigt, das heißt, dessen Nehmerzylinderkolben axial verlagert wird. Das Kunststoffgehäuse des Geberzylinders weist dabei zumindest eine Öffnung auf, in die unter Ausbildung einer Ultraschallschweißverbindung das vorgeschlagene Verschlussstück dicht eingebracht ist.The proposed hydrostatic actuator contains an electric drive and a hydrostatic master cylinder. The electric drive and master cylinder can be accommodated in a common housing such as a plastic housing. Alternatively, the electric drive can have a separate housing, for example a metal housing, the master cylinder having a plastic housing which is firmly connected to the housing of the electric drive. The electric drive linearly drives a master cylinder lobe of the master cylinder by means of a converter gear that converts the rotor movement into a linear movement, that is to say moves it back and forth along an actuation axis. Alternatively, this moves the master cylinder piston against the action of an energy store in only one direction, this being displaced back by the energy store. The converter gear can also serve as a transmission gear. Alternatively, a transmission gear can be connected upstream or downstream of the converter gear. The master cylinder piston limits a volume of a pressure chamber of the master cylinder, for example a variable pressure chamber formed by the plastic housing of the master cylinder, so that when the master cylinder piston is displaced, pressure builds up in the pressure chamber and a slave cylinder, for example for actuating a friction clutch, is hydrostatically connected to the pressure chamber , actuated, that is, whose slave cylinder piston is axially displaced. The plastic housing of the master cylinder has at least one opening into which the proposed closure piece is tightly inserted with the formation of an ultrasonic welded connection.

Zur Berücksichtigung der Toleranzen der Öffnung und des Verschlussstücks ist an einem Stirnabschnitt wie Stirnbereich des Verschlussstücks ein Spalt zur Öffnung vorhanden Zur Vermeidung eines Durchtritts von Schweißaustrieb in die Druckkammer mit der Gefahr einer Kontaminierung des in dieser vorhandenen Druckmittels ist diese mittels der Umlenkeinrichtung frei von Schweißaustrieb gehalten, indem der Schweißaustrieb an der Umlenkreinrichtung von dem Spalt abgelenkt wird. Der Schweißaustrieb kann nach dessen Ablenkung in eine Tasche des Verschlussstücks umgelenkt und dort gehalten wie deponiert werden.In order to take into account the tolerances of the opening and the closure piece, there is a gap for the opening on a front section such as the front area of the closure piece by deflecting the weld output at the deflection device from the gap. After it has been deflected, the sweat expulsion can be diverted into a pocket of the closure piece and held there as if it were deposited.

Es versteht sich, dass die Aufgabe auch durch ein Verfahren zur Einbringung des vorgeschlagenen Verschlussstücks in eine Öffnung des Kunststoffgehäuses unter Verwendung der vorgeschlagenen Umlenkeinrichtung gelöst wird.It goes without saying that the object is also achieved by a method for introducing the proposed closure piece into an opening in the plastic housing using the proposed deflection device.

Die Erfindung wird anhand des in den 1 und 2 dargestellten Ausführungsbeispiels näher erläutert. Dabei zeigen:

  • 1 einen Schnitt durch einen Teil eines Kunststoffgehäuses mit Verschlussstück vor dem Fügevorgang mittels Ultraschallschweißen und
  • 2 die Anordnung der 1 nach dem Fügevorgang in der Darstellung der 1.
The invention is based on the in the 1 and 2 illustrated embodiment explained in more detail. Show:
  • 1 a section through part of a plastic housing with closure piece before the joining process by means of ultrasonic welding and
  • 2 the arrangement of the 1 after the joining process in the representation of 1 .

Die 1 zeigt einen Ausschnitt des Kunststoffgehäuses 1 mit dem Gehäuseabschnitt 2 mit der Öffnung 3. In die Öffnung 3 wird das Verschlussstück 4 in Form des Stopfens 5 eingebracht und mittels eines Ultraschallschweißverfahrens stoffschlüssig und dicht mit dem Gehäuseabschnitt 2 verbunden. Die 1 zeigt das Verschlussstück 4 und den Gehäuseabschnitt 2 vor beziehungsweise während des Fügevorgangs. Hierbei wird unter Druck in Fügerichtung 13 der Fügeachse a eine - nicht dargestellte - Sonotrode auf die obere Stirnseite 6 des Verschlussstücks 4 aufgebracht. Hierbei tritt an einem ersten Querschnitt q1 durch die Ultraschalleinwirkung der Sonotrode an der Fügezone 7 zwischen dem Vorsprung 8 des Gehäuseabschnitts 2 an einem ersten Querschnitt q1 und der Anlagefläche 9 des Verschlussstücks 4 mit dem Durchmesser D1 Reibung und daraus folgend eine Erwärmung bis zur Erweichung und Schmelze der Fügezone 7 auf. Durch die thermoplastische Verformung und Verflüssigung der Fügezone 7 tritt an der Unterseite der Fügezone 7 Schweißaustrieb auf, der durch den Pfeil 10 dargestellt ist.the 1 shows a section of the plastic housing 1 with the housing section 2 with the opening 3 . In the opening 3 becomes the locking piece 4th in the form of the stopper 5 introduced and by means of an ultrasonic welding process cohesively and tightly with the housing section 2 tied together. the 1 shows the locking piece 4th and the housing section 2 before or during the joining process. This is done under pressure in the joining direction 13th the joining axis a a - not shown - sonotrode on the upper face 6th of the locking piece 4th upset. This occurs at a first cross-section q 1 due to the ultrasound effect of the sonotrode at the joining zone 7th between the ledge 8th of the housing section 2 on a first cross-section q 1 and the contact surface 9 of the locking piece 4th with the diameter D 1 Friction and consequent heating up to softening and melting of the joining zone 7th on. Through the thermoplastic deformation and liquefaction of the joining zone 7th occurs at the bottom of the joining zone 7th Sweat flashes up, indicated by the arrow 10 is shown.

Um ein Eindringen des Schweißaustriebs in den zwischen Verschlussstück 4 und die Öffnung 3 gebildeten Spalt 11 und von dort in das Innenvolumen 12 des Kunststoffgehäuses zu verhindern, ist zwischen der Fügezone 7 und dem Stirnbereich 14 des Verschlussstücks 4 die Umlenkeinrichtung 15 vorgesehen. Diese ist durch den radial in die Öffnung 3 erweiterten Vorsprung 16 mit dem zweiten Querschnitt q2 gebildet. Der zweite Querschnitt q2 ist dabei kleiner als der erste Querschnitt q1 . Das Verschlussstück ist hierzu komplementär stufenförmig ausgebildet und weist gegenüber dem ersten Durchmesser D1 an dem Vorsprung 16 einen verringerten zweiten Durchmesser D2 auf. Der bevorzugt ringförmige Vorsprung 16 übergreift radial die Fügezone 7, so dass der noch flüssige Schweißaustritt an dem Vorsprung 16 abprallt. Um den Schweißaustritt zu deponieren, ist bezogen auf die Fügeachse a axial zwischen der Fügezone 7 und dem Stirnbereich 14 in dem Verschlussstück die radial nach innen eingezogene, bevorzugt ringförmig ausgebildete Tasche 17 eingebracht. Die Deponierung des Schweißaustritts erfolgt durch die Umlenkung des Schweißaustritts an dem Vorsprung 16 bei gleichzeitigem Vorschub des Verschlussstücks 4 in Fügerichtung 13 in der Tasche 17. Hierbei verfestigt sich zugleich der Schweißaustritt und ist daher gehindert, sich weiter zu verlagern.In order for the sweat to penetrate into the interlocking piece 4th and the opening 3 formed gap 11 and from there into the interior volume 12th to prevent the plastic housing is between the joining zone 7th and the forehead area 14th of the locking piece 4th the deflection device 15th intended. This is through the radial into the opening 3 extended lead 16 with the second cross section q 2 educated. The second cross section q 2 is smaller than the first cross section q 1 . To this end, the closure piece is designed in a step-shaped manner in a complementary manner and has a diameter opposite the first D 1 on the ledge 16 a reduced second diameter D 2 on. The preferably annular projection 16 radially overlaps the joining zone 7th so that the still liquid perspiration emerges from the protrusion 16 ricochets. To deposit the welding outlet, is related to the joining axis a axially between the joining zone 7th and the forehead area 14th in the closure piece, the pocket which is drawn in radially inward and is preferably annular in shape 17th brought in. The depositing of the welding outlet takes place by deflecting the welding outlet on the projection 16 with simultaneous advancement of the locking piece 4th in the joining direction 13th in the bag 17th . At the same time, the sweat leakage solidifies and is therefore prevented from shifting any further.

Die 2 zeigt das Kunststoffgehäuse 1 an dem Gehäuseabschnitt 2 bei gefügtem Verschlussstück 4. An der Fügezone 7 ist die abgekühlte, feste und dichte Ultraschallschweißverbindung 18 ausgebildet. Die Tasche 17 bildet das Depot für den verfestigten Schweißaustritt. Während des Fügevorgangs des Verschlussstücks 4 erfährt der Schweißaustritt durch die Axialbewegung des Verschlussstücks 4 in Fügerichtung entlang der Fügeachse a im Wesentlichen die durch den Pfeil 19 gezeigte Umlenkbewegung und sammelt sich in der Tasche 17.the 2 shows the plastic case 1 on the housing section 2 with joined locking piece 4th . At the joining zone 7th is the cooled, firm and tight ultrasonic welded joint 18th educated. The pocket 17th forms the depot for the solidified sweat leakage. During the joining process of the locking piece 4th the sweat leakage is caused by the axial movement of the locking piece 4th in the joining direction along the joining axis a essentially the one by the arrow 19th shown deflection and collects in the pocket 17th .

BezugszeichenlisteList of reference symbols

11
KunststoffgehäusePlastic housing
22
GehäuseabschnittHousing section
33
Öffnungopening
44th
VerschlussstückLocking piece
55
StopfenPlug
66th
StirnseiteFront side
77th
FügezoneJoining zone
88th
Vorsprunghead Start
99
AnlageflächeContact surface
1010
Pfeilarrow
1111
Spaltgap
1212th
InnenvolumenInternal volume
1313th
FügerichtungJoining direction
1414th
StirnbereichForehead area
1515th
UmlenkeinrichtungDeflection device
1616
Vorsprunghead Start
1717th
Taschebag
1818th
UltraschallschweißverbindungUltrasonic welded joint
1919th
Pfeilarrow
aa
FügeachseJoining axis
q1q1
Querschnittcross-section
q2q2
Querschnittcross-section
D1D1
Durchmesserdiameter
D2D2
Durchmesserdiameter

Claims (8)

Kunststoffgehäuse (1), insbesondere für einen Hydrostataktor enthaltend einen Gehäuseabschnitt (2) mit einer Öffnung (3) und ein in diese mittels Ultraschall eingebrachtes Verschlussstück (4), wobei eine Ultraschallschweißverbindung (18) an einer Fügezone (7) mit einem ersten Querschnitt (q1) ausgebildet ist, Verschlussstück (4) und Öffnung (3) in eine Fügerichtung (13) der Ultraschallschweißverbindung (18) zu der Fügezone (7) axial beabstandet eine Umlenkeinrichtung (15) für einen Schweißaustrieb der Ultraschallschweißverbindung (18) ausbilden, und die Umlenkeinrichtung (15) aus einem radialen Vorsprung (16) mit einem gegenüber dem ersten Querschnitt (q1) verengten zweiten Querschnitt (q2) der Öffnung (3) und einem gegenüber einem ersten Durchmesser (D1) des Verschlussstücks (4) an der Fügezone (7) verringerten zweiten Durchmesser (D2) des Verschlussstücks (4) gebildet ist, dadurch gekennzeichnet, dass axial zwischen den beiden Durchmessern (D1, D2) eine ringförmige Tasche (17) in dem Verschlussstück (17) vorhanden ist.Plastic housing (1), in particular for a hydrostatic actuator, containing a housing section (2) with an opening (3) and a closure piece (4) introduced into this by means of ultrasound, an ultrasonic welded connection (18) at a joining zone (7) with a first cross section ( q1) is formed, the closure piece (4) and opening (3) in a joining direction (13) of the ultrasonic welded connection (18) to the joining zone (7) axially spaced a deflection device (15) for a weld output of the ultrasonic welded connection (18) form, and the Deflection device (15) consisting of a radial projection (16) with a second cross section (q 2 ) of the opening (3) that is narrowed compared to the first cross section (q 1 ) and a diameter (D 1 ) of the closure piece (4) on the Joining zone (7) reduced second diameter (D 2 ) of the closure piece (4) is formed, characterized in that axially between the two diameters (D 1 , D 2 ) an annular pocket e (17) is present in the closure piece (17). Kunststoffgehäuse (1) nach Anspruch 1, dadurch gekennzeichnet, dass das Verschlussstück (4) als Stopfen (5) ausgebildet ist.Plastic housing (1) Claim 1 , characterized in that the closure piece (4) is designed as a stopper (5). Kunststoffgehäuse (1) nach Anspruch 1 dadurch gekennzeichnet, dass das Verschlussstück als Anschlussstück ausgebildet ist.Plastic housing (1) Claim 1 characterized in that the closure piece is designed as a connection piece. Hydrostataktor mit einem elektrischen Antrieb und einem hydrostatischen Geberzylinder, wobei der elektrische Antrieb gegebenenfalls unter Zwischenschaltung eines Übersetzungsgetriebes einen ein Volumen einer Druckkammer des Geberzylinders variabel begrenzenden Geberzylinderkolben axial verlagert, dadurch gekennzeichnet, dass die Druckkammer in einem Kunststoffgehäuse (1) gemäß den Ansprüchen 1 bis 3 angeordnet ist.Hydrostatactor with an electric drive and a hydrostatic master cylinder, the electric drive axially displacing a master cylinder piston variably limiting a volume of a pressure chamber of the master cylinder, if necessary with the interposition of a transmission gear, characterized in that the pressure chamber is in a plastic housing (1) according to the Claims 1 until 3 is arranged. Hydrostataktor nach Anspruch 4, dadurch gekennzeichnet, dass an einem Stirnbereich (14) des Verschlussstücks (4) ein Spalt (11) zur Öffnung (3) vorhanden ist.Hydrostatic actuator Claim 4 , characterized in that a gap (11) to the opening (3) is present in an end region (14) of the closure piece (4). Hydrostataktor nach Anspruch 4 oder 5, dadurch gekennzeichnet, dass die Druckkammer mittels der Ultraschallschweißverbindung (18) gegenüber dem Verschlussstück (4) luft- und flüssigkeitsdicht abgedichtet ist.Hydrostatic actuator Claim 4 or 5 , characterized in that the pressure chamber is sealed airtight and liquid-tight with respect to the closure piece (4) by means of the ultrasonic welded connection (18). Hydrostataktor nach einem der Ansprüche 4 bis 6, dadurch gekennzeichnet, dass ein in der Druckkammer enthaltenes Druckmittel mittels der Umlenkeinrichtung (15) frei von Schweißaustrieb gehalten ist.Hydrostat actuator according to one of the Claims 4 until 6th , characterized in that a pressure medium contained in the pressure chamber is kept free from sweat by means of the deflection device (15). Hydrostataktor nach Anspruch 7, dadurch gekennzeichnet, dass der Schweißaustrieb in einer Tasche (17) des Verschlussstücks (4) gehalten ist.Hydrostatic actuator Claim 7 , characterized in that the sweat exit is held in a pocket (17) of the closure piece (4).
DE102015216371.7A 2015-08-27 2015-08-27 Plastic housing with an ultrasonic welded connection, in particular for a hydrostatic actuator and hydrostatic actuator with this Active DE102015216371B4 (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2732070A1 (en) 1976-07-20 1978-02-02 Int Cold Forging Corp ARRANGEMENT OF TWO ELEMENTS TO BE CONNECTED, IN PARTICULAR FOR ELECTROVALVES
DE10038493C1 (en) 2000-08-08 2001-10-18 Ritz Reinert Gmbh Connector for joining pipe made of e.g. polyethylene to pipe made of different material consists of two sections, one end fitting into first tube and the end fitting around socket with connector for second pipe behind it
DE102010047801A1 (en) 2009-10-29 2011-05-05 Schaeffler Technologies Gmbh & Co. Kg Hydrostataktor
DE102010047800A1 (en) 2009-10-29 2011-05-05 Schaeffler Technologies Gmbh & Co. Kg Hydrostatic clutch actuator
DE102011105501A1 (en) 2010-06-29 2011-12-29 Schaeffler Technologies Gmbh & Co. Kg Hydrostataktor
DE102011086791A1 (en) 2011-11-22 2013-05-23 Continental Automotive Gmbh Closing method for closing bore of workpiece using bore closing device, involves placing bore in workpiece, where bore in area of workpiece near to surface has bigger diameter than in area of workpiece away from surface
DE102014201791A1 (en) 2013-02-27 2014-08-28 Schaeffler Technologies Gmbh & Co. Kg Hydraulic fact actuator for automated operation of a friction clutch used in powertrain of motor car, changes rotating movement of rotor of electromotor corresponding to linear shift movement of piston and rotation speed of rotor

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5855293A (en) * 1996-09-27 1999-01-05 Automotive Fluid Systems, Inc. Pressure vessel and method of manufacture thereof
US7216504B2 (en) * 2004-03-31 2007-05-15 Cambro Manufacturing Co. Temperature controlled food container and process
JP4479500B2 (en) * 2004-12-27 2010-06-09 ぺんてる株式会社 Weld structure
JP2010284693A (en) * 2009-06-12 2010-12-24 Mitsubishi Heavy Ind Ltd Cooling plate and method of manufacturing the same
CN204190840U (en) * 2014-11-04 2015-03-04 深圳市豪恩汽车电子装备有限公司 Car reversing image pickup device
CN104410773B (en) * 2014-11-04 2018-06-22 深圳市豪恩汽车电子装备股份有限公司 Car reversing image pickup device and its manufacturing method

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2732070A1 (en) 1976-07-20 1978-02-02 Int Cold Forging Corp ARRANGEMENT OF TWO ELEMENTS TO BE CONNECTED, IN PARTICULAR FOR ELECTROVALVES
DE10038493C1 (en) 2000-08-08 2001-10-18 Ritz Reinert Gmbh Connector for joining pipe made of e.g. polyethylene to pipe made of different material consists of two sections, one end fitting into first tube and the end fitting around socket with connector for second pipe behind it
DE102010047801A1 (en) 2009-10-29 2011-05-05 Schaeffler Technologies Gmbh & Co. Kg Hydrostataktor
DE102010047800A1 (en) 2009-10-29 2011-05-05 Schaeffler Technologies Gmbh & Co. Kg Hydrostatic clutch actuator
DE102011105501A1 (en) 2010-06-29 2011-12-29 Schaeffler Technologies Gmbh & Co. Kg Hydrostataktor
DE102011086791A1 (en) 2011-11-22 2013-05-23 Continental Automotive Gmbh Closing method for closing bore of workpiece using bore closing device, involves placing bore in workpiece, where bore in area of workpiece near to surface has bigger diameter than in area of workpiece away from surface
DE102014201791A1 (en) 2013-02-27 2014-08-28 Schaeffler Technologies Gmbh & Co. Kg Hydraulic fact actuator for automated operation of a friction clutch used in powertrain of motor car, changes rotating movement of rotor of electromotor corresponding to linear shift movement of piston and rotation speed of rotor

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