DE10314007A1 - Piston vacuum pump for pumping gas, has sensor that detects speed of switching supply of energizing current between electrical coils by magnet arrangement - Google Patents
Piston vacuum pump for pumping gas, has sensor that detects speed of switching supply of energizing current between electrical coils by magnet arrangement Download PDFInfo
- Publication number
- DE10314007A1 DE10314007A1 DE2003114007 DE10314007A DE10314007A1 DE 10314007 A1 DE10314007 A1 DE 10314007A1 DE 2003114007 DE2003114007 DE 2003114007 DE 10314007 A DE10314007 A DE 10314007A DE 10314007 A1 DE10314007 A1 DE 10314007A1
- Authority
- DE
- Germany
- Prior art keywords
- piston
- vacuum pump
- sensor
- excitation currents
- signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- 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
- F04B49/06—Control using electricity
- F04B49/065—Control using electricity and making use of computers
-
- 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
- F04B25/00—Multi-stage pumps
- F04B25/005—Multi-stage pumps with two cylinders
-
- 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
- F04B25/00—Multi-stage pumps
- F04B25/02—Multi-stage pumps of stepped piston type
-
- 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
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
- F04B35/045—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric using solenoids
-
- 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
- F04B2201/00—Pump parameters
- F04B2201/02—Piston parameters
- F04B2201/0202—Linear speed of the piston
-
- 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
- F04B2203/00—Motor parameters
- F04B2203/04—Motor parameters of linear electric motors
- F04B2203/0401—Current
-
- 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
- F04B2203/00—Motor parameters
- F04B2203/04—Motor parameters of linear electric motors
- F04B2203/0402—Voltage
-
- 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
- F04B2203/00—Motor parameters
- F04B2203/04—Motor parameters of linear electric motors
- F04B2203/0409—Linear speed
Abstract
Description
Die Erfindung betrifft eine Kolbenvakuumpumpe mit einem linear geführten Kolben und einer den Kolben antreibenden steuerbaren Magnetanordnung, die zwei mit umschaltbaren Erregerströmen beaufschlagte, den Kolben antreibende Arbeitsspulen aufweist.The invention relates to a piston vacuum pump with a linear guided Piston and a controllable magnet arrangement driving the piston, the two with switchable excitation currents, the piston has driving work coils.
Kolbenvakuumpumpen, von denen der Oberbegriff
des Patentanspruchs 1 ausgeht, sind beispielsweise beschrieben in
WO 00/63556 und
Der Erfindung liegt die Aufgabe zugrunde, eine Kolbenvakuumpumpe zu schaffen, die durch dynamische Frequenzanpassung die augenblickliche Resonanzfrequenz des Kolbens selber findet und die Leistungseinkopplung so dosiert, dass der Kolben unabhängig von den jeweiligen Betriebsparametern einen gleichmäßigen Hub hat.The invention has for its object a Piston vacuum pump to create by dynamic frequency adjustment finds the instantaneous resonance frequency of the piston itself and the power input metered so that the piston is independent of has an even stroke according to the respective operating parameters.
Die Lösung dieser Aufgabe erfolgt erfindungsgemäß mit den im Anspruch 1 angegebenen Merkmalen. Hiernach ist ein die Kolbengeschwindigkeit erfassender Sensor vorgesehen; aus dem Sensorsignal werden die Umschaltzeitpunkte für die Erregerströme der Magnetanordnung bestimmt. Erfindungsgemäß erfolgt die Umsteuerung des Kolbens der Kolbenvakuumpumpe stets dann, wenn der Kolben in die Nähe einer Endlage gelangt ist und die Kolbengeschwindigkeit unter einen vorgegebenen Wert abgesunken ist. Die Umsteuerung wird also nicht zeitabhängig oder entsprechend einer vorgegebenen Resonanzfrequenz durchgeführt, sondern in Abhängigkeit von der Kolbengeschwindigkeit. Damit erfolgt eine selbsttätige Anpassung der Taktung der Erregerströme an die jeweilige Kolbenbelastung und die sonstigen augenblicklich herrschenden Betriebsparameter. Die Umsteuerung des Kolbens erfolgt automatisch zeitgerecht. Damit wird ein Schwingkolbenbetrieb durchgeführt, bei dem sich automatisch die Resonanzfrequenz des Kolbens einstellt. Die erfindungsgemäße Kolbenvakuumpumpe hat einen verbesserten Wirkungsgrad und auch eine geringere Belas tung der mechanischen Komponenten, wodurch sich eine erhöhte Lebensdauer ergibt.This task is solved according to the invention with the features specified in claim 1. Hereafter is the piston speed detecting sensor provided; the switching times become from the sensor signal for the excitation currents determines the magnet arrangement. According to the reversal of the Piston of the piston vacuum pump whenever the piston is in the Close to one End position has reached and the piston speed below a predetermined Value has dropped. The reversal is therefore not time-dependent or performed according to a predetermined resonance frequency, but dependent on from the piston speed. This is an automatic adjustment the timing of the excitation currents to the respective piston load and the other instantaneously prevailing operating parameters. The piston is reversed automatically on time. So a swinging piston operation is carried out at which automatically adjusts the resonance frequency of the piston. The piston vacuum pump according to the invention has an improved efficiency and also a lower load of the mechanical components, which increases the lifespan results.
Gemäß einer bevorzugten Ausgestaltung der Erfindung ist vorgesehen, dass aus dem Sensorsignal ein dem Kolbenhub entsprechendes Signal gewonnen wird, das zur Bemessung der Stromstärke der Erregerströme benutzt wird. Hierbei erfolgt eine Bemessung der Erregerströme in der Weise, dass der Kolbenhub auf einen vorbestimmten Sollwert geregelt wird. Diese Regelung ist abhängig von der Kolbenbelastung. Bei hoher Kolbenlast werden die Erregerströme erhöht. Auf diese Weise kann erreicht werden, dass die Arbeitshübe belastungsabhängig in der Weise erfolgen, dass stets die gewünschte Hublänge entsteht. Dadurch werden kurze Hübe mit geringer Energieausnutzung vermieden. Ebenfalls werden zu lange Hübe, bei denen der Kolben gegen Endanschläge prallt, vermieden.According to a preferred embodiment of the The invention provides that the piston stroke from the sensor signal corresponding signal is obtained, which is used to measure the current of the excitation currents is used. The excitation currents are measured in the Way that the piston stroke is regulated to a predetermined target value becomes. This regulation is dependent from the piston load. When the piston load is high, the excitation currents are increased. On in this way it can be achieved that the working strokes are dependent on the load in such a way that the desired stroke length is always created. This will short strokes avoided with low energy utilization. Also will be too long Strokes, at those of the pistons against end stops bounces, avoided.
Das dem Kolbenhub entsprechende Signal kann aus dem der Kolbengeschwindigkeit entsprechenden Signal durch Integration gewonnen werden. Damit wird der Mittelwert des Kolbenhubes auf einfache Weise bestimmt.The signal corresponding to the piston stroke can from the signal corresponding to the piston speed by integration be won. This makes the average piston stroke simple Determined way.
Die Regelschaltung der erfindungsgemäßen Kolbenvakuumpumpe kann in sehr einfacher Weise ausgeführt werden. Es wird nur ein einziger Sensor benötigt, der vorzugsweise auf dem Induktionsprinzip beruht. Die Sensorsignale werden verarbeitet, um daraus die Umsteuerzeitpunkte für den Kolben und die Höhe der Erregerströme zu bestimmen.The control circuit of the piston vacuum pump according to the invention can be done in a very simple way. It will only be one only sensor needed which is preferably based on the induction principle. The sensor signals are processed to derive the changeover times for the piston and the height the excitation currents to determine.
Die Erfindung betrifft ferner ein Verfahren zur Steuerung der Erregerströme einer Kolbenvakuumpumpe mit den Merkmalen des Anspruchs 8.The invention further relates to a Process for controlling the excitation currents of a piston vacuum pump with the features of claim 8.
Im Folgenden wird unter Bezugnahme auf die Zeichnungen ein bevorzugtes Ausführungsbeispiel der Erfindung näher erläutert.The following is with reference on the drawings, a preferred embodiment of the invention explained in more detail.
Es zeigen:Show it:
Die in
Für
den Antrieb des Kolbens
Die Arbeitsspulen L1 und L2 werden
von gegenphasig gepulsten Erregerströmen erregt. Dadurch wird beispielsweise
das Magnetfeld des linken Permanentmagneten
In der Mitte zwischen den Erregerspulen
L1 und L2 befindet sich ein Sensor
In
An den Endpunkten E der Kolbenbewegung erfolgt die Umsteuerung der Erregerspulen schon vor dem Erreichen der Endlage. Daher ergibt sich dort eine kurze linear erscheinende Flanke.At the end points E of the piston movement the reversal of the excitation coils before the end position is reached. Therefore there is a short linear edge.
Das Signal des Sensors
Die vom Filter
Die Amplitude der Erregerströme I wird
einem anderen Eingang der Stromerzeugerschaltung
Während das vorstehend beschriebene Ausführungsbeispiel eine Schaltung aus diskreten Bauteilen aufweist, kann zur Verarbeitung der Sensorsignale auch ein Computer benutzt werden, der die betreffenden Funktionen mit entsprechender Software ausführt. Die Verarbeitung der Sensorsignale und die Regelung für I (t) können auch digital über einen Mikrocontroller und eine entsprechende Software erfolgen.While the embodiment described above has a circuit of discrete components, can be used for processing the sensor signals can also be used on a computer that the concerned Functions with appropriate software. The processing of the sensor signals and the scheme for I (t) can also digitally via a microcontroller and appropriate software.
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2003114007 DE10314007A1 (en) | 2003-03-28 | 2003-03-28 | Piston vacuum pump for pumping gas, has sensor that detects speed of switching supply of energizing current between electrical coils by magnet arrangement |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2003114007 DE10314007A1 (en) | 2003-03-28 | 2003-03-28 | Piston vacuum pump for pumping gas, has sensor that detects speed of switching supply of energizing current between electrical coils by magnet arrangement |
Publications (1)
Publication Number | Publication Date |
---|---|
DE10314007A1 true DE10314007A1 (en) | 2004-10-07 |
Family
ID=32946276
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2003114007 Withdrawn DE10314007A1 (en) | 2003-03-28 | 2003-03-28 | Piston vacuum pump for pumping gas, has sensor that detects speed of switching supply of energizing current between electrical coils by magnet arrangement |
Country Status (1)
Country | Link |
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DE (1) | DE10314007A1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006060147A1 (en) * | 2006-12-18 | 2008-06-19 | Andreas Hofer Hochdrucktechnik Gmbh | Fluid-working machine |
WO2009082800A1 (en) | 2007-12-28 | 2009-07-09 | Whirpool S.A. | Piston and cylinder combination driven by linear motor with cylinder position recognition system and linear motor compressor, and an inductive sensor |
WO2011079330A1 (en) * | 2009-12-14 | 2011-07-07 | Acc Austria Gmbh | Coolant compressor with linear drive |
DE102011008086A1 (en) * | 2011-01-07 | 2012-07-12 | Inficon Gmbh | Double-acting refrigerant compressor |
WO2012122615A3 (en) * | 2011-03-15 | 2013-01-03 | Whirpool S.A. | Actuation system for a resonant linear compressor, method for actuating a resonant linear compressor, and resonant linear compressor |
US8784069B2 (en) | 2007-12-28 | 2014-07-22 | Whirlpool S.A. | Method of detecting impact between cylinder and piston driven by a linear motor, detector of impact between a cylinder and piston driven by a linear motor, gas compressor, control system for a cylinder and a piston set driven by a linear motor gas compressor, control system for a cylinder and a piston set driven by a linear motor |
DE102014012977A1 (en) * | 2014-09-08 | 2016-03-10 | Albonair Gmbh | Reducing agent metering system with improved delivery pump |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4353220A (en) * | 1980-06-17 | 1982-10-12 | Mechanical Technology Incorporated | Resonant piston compressor having improved stroke control for load-following electric heat pumps and the like |
DE4015006A1 (en) * | 1989-05-10 | 1990-11-15 | Toyoda Automatic Loom Works | Swashplate compressor with variable delivery rate and delivery rate detector |
US5980211A (en) * | 1996-04-22 | 1999-11-09 | Sanyo Electric Co., Ltd. | Circuit arrangement for driving a reciprocating piston in a cylinder of a linear compressor for generating compressed gas with a linear motor |
WO2000063556A1 (en) * | 1999-04-19 | 2000-10-26 | Leybold Vakuum Gmbh | Rotary piston drive mechanism |
DE10157700A1 (en) * | 2000-11-28 | 2002-06-06 | Lg Electronics Inc | Circuit for driving a linear compressor |
-
2003
- 2003-03-28 DE DE2003114007 patent/DE10314007A1/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4353220A (en) * | 1980-06-17 | 1982-10-12 | Mechanical Technology Incorporated | Resonant piston compressor having improved stroke control for load-following electric heat pumps and the like |
DE4015006A1 (en) * | 1989-05-10 | 1990-11-15 | Toyoda Automatic Loom Works | Swashplate compressor with variable delivery rate and delivery rate detector |
US5980211A (en) * | 1996-04-22 | 1999-11-09 | Sanyo Electric Co., Ltd. | Circuit arrangement for driving a reciprocating piston in a cylinder of a linear compressor for generating compressed gas with a linear motor |
WO2000063556A1 (en) * | 1999-04-19 | 2000-10-26 | Leybold Vakuum Gmbh | Rotary piston drive mechanism |
DE10157700A1 (en) * | 2000-11-28 | 2002-06-06 | Lg Electronics Inc | Circuit for driving a linear compressor |
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006060147A1 (en) * | 2006-12-18 | 2008-06-19 | Andreas Hofer Hochdrucktechnik Gmbh | Fluid-working machine |
WO2008074428A1 (en) * | 2006-12-18 | 2008-06-26 | Andreas Hofer Hochdrucktechnik Gmbh | Fluid machine |
DE102006060147B4 (en) * | 2006-12-18 | 2009-05-14 | Andreas Hofer Hochdrucktechnik Gmbh | Fluid-working machine |
US8944785B2 (en) | 2007-12-28 | 2015-02-03 | Whirlpool S.A. | Piston and cylinder combination driven by linear motor with cylinder position recognition system and linear motor compressor, and an inductive sensor |
WO2009082800A1 (en) | 2007-12-28 | 2009-07-09 | Whirpool S.A. | Piston and cylinder combination driven by linear motor with cylinder position recognition system and linear motor compressor, and an inductive sensor |
CN101960141B (en) * | 2007-12-28 | 2013-11-20 | 惠而浦股份公司 | Piston and cylinder combination driven by linear motor with cylinder position recognition system and linear motor compressor, and an inductive sensor |
CN101960141A (en) * | 2007-12-28 | 2011-01-26 | 惠而浦股份公司 | Piston and cylinder combination driven by linear motor with cylinder position recognition system and linear motor compressor, and an inductive sensor |
JP2014132174A (en) * | 2007-12-28 | 2014-07-17 | Whirlpool Sa | Piston and cylinder combination driven by linear motor with cylinder position recognition system, linear motor compressor, and inductive sensor |
US8784069B2 (en) | 2007-12-28 | 2014-07-22 | Whirlpool S.A. | Method of detecting impact between cylinder and piston driven by a linear motor, detector of impact between a cylinder and piston driven by a linear motor, gas compressor, control system for a cylinder and a piston set driven by a linear motor gas compressor, control system for a cylinder and a piston set driven by a linear motor |
WO2011079330A1 (en) * | 2009-12-14 | 2011-07-07 | Acc Austria Gmbh | Coolant compressor with linear drive |
CN102741551A (en) * | 2009-12-14 | 2012-10-17 | Acc奥地利有限公司 | Coolant compressor with linear drive |
DE102011008086A1 (en) * | 2011-01-07 | 2012-07-12 | Inficon Gmbh | Double-acting refrigerant compressor |
US9777717B2 (en) | 2011-01-07 | 2017-10-03 | Inficon Gmbh | Double acting refrigeration compressor |
CN103282656A (en) * | 2011-01-07 | 2013-09-04 | 英福康有限责任公司 | Double-acting refrigeration compressor |
CN103282656B (en) * | 2011-01-07 | 2016-05-18 | 英福康有限责任公司 | Double acting refrigeration compressor |
JP2014511959A (en) * | 2011-03-15 | 2014-05-19 | ワールプール,ソシエダッド アノニマ | Operating system for resonant linear compressor, operating method of resonant linear compressor and resonant linear compressor |
CN103547805B (en) * | 2011-03-15 | 2016-05-04 | 惠而浦股份公司 | For the actuating system of resonant Linearkompressor, for actuating method and the resonant Linearkompressor of resonant Linearkompressor |
CN103547805A (en) * | 2011-03-15 | 2014-01-29 | 惠而浦股份公司 | Actuation system for a resonant linear compressor, method for actuating a resonant linear compressor, and resonant linear compressor |
WO2012122615A3 (en) * | 2011-03-15 | 2013-01-03 | Whirpool S.A. | Actuation system for a resonant linear compressor, method for actuating a resonant linear compressor, and resonant linear compressor |
US10697444B2 (en) | 2011-03-15 | 2020-06-30 | Embraco Indústria De Compressores E Soluções Em Refrigeração Ltda. | Actuation system for a resonant linear compressor, method for actuating a resonant linear compressor, and resonant linear compressor |
US11187221B2 (en) | 2011-03-15 | 2021-11-30 | Embraco—Indústria De Compressores E Soluçôes Em Refrigeraçâo Ltda. | Actuation system for a resonant linear compressor, method for actuating a resonant linear compressor, and resonant linear compressor |
DE102014012977A1 (en) * | 2014-09-08 | 2016-03-10 | Albonair Gmbh | Reducing agent metering system with improved delivery pump |
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