DE493433C - Piston pump with electrical drive and automatic electrical reversal of the piston movement - Google Patents

Piston pump with electrical drive and automatic electrical reversal of the piston movement

Info

Publication number
DE493433C
DE493433C DEK111670D DEK0111670D DE493433C DE 493433 C DE493433 C DE 493433C DE K111670 D DEK111670 D DE K111670D DE K0111670 D DEK0111670 D DE K0111670D DE 493433 C DE493433 C DE 493433C
Authority
DE
Germany
Prior art keywords
piston
reversal
electrical
movement
pump
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DEK111670D
Other languages
German (de)
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.)
Knorr Bremse AG
Original Assignee
Knorr Bremse AG
Publication date
Priority to DEK111670D priority Critical patent/DE493433C/en
Application granted granted Critical
Publication of DE493433C publication Critical patent/DE493433C/en
Expired legal-status Critical Current

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
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
    • 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
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical

Description

Kolbenpampe mit eiektrischetn Antrieb und selbsttätiger elektrischer 1Jtnsteuerung der Kolbenbewegung Gegenstand der Erfindung ist eine Kolbenpumpe mit elektrischem Antrieb und selbsttätiger elektrischer Umsteuerung der Kolbenbewegung, bei der der Kolben seine BewegUng nach Art einer Schraubenmutter auf einer in Drehung versetzten Gewindespindel vollführt.Piston bulb with electric drive and automatic electric 1Jtnsteuerung the piston movement The subject of the invention is a piston pump with electrical drive and automatic electrical reversal of the piston movement, in which the piston rotates its movement in the manner of a screw nut offset threaded spindle performs.

Es sind bereits elektrisch angetriebene Pumpen bekannt, bei denen der Kolben abwechselnd der Einwirkung j e eines Elektromagneten unterliegt, wobei die Elektromagnete wechselweise erregt werden.There are already electrically driven pumps known in which the piston is alternately subject to the action of an electromagnet, wherein the electromagnets are excited alternately.

Diesen bekannten Pumpen gegenüber besitzt der Erfindungsgegenstand den Vorteil, daß bei ihm der Kolben der Einwirkung nur einer elektrischen Antriebsvorrichtung unterliegt.Opposite these known pumps, the subject of the invention possesses the advantage that with him the piston of the action of only one electric drive device subject.

Es sind ferner elektrisch angetriebene Pumpen bekannt, bei denen der Kolben gleichfalls nach Art einer Mutter auf einer Gewindespindel läuft, die elektrisch in Drehung versetzt wird.There are also electrically driven pumps known in which the Piston also runs in the manner of a nut on a threaded spindle, which is electrical is set in rotation.

Bei diesen bekannten Pumpen ist die Ge-%vindespindel mit sich gegenseitig schneidendem Rechts- und Linksgewinde versehen. Hierdurch werden steilgängige Gewinde notwendig, die ihrerseits zur Einschaltung eines Schneckenradgetriebes zwischen Antriebsmotor und.Schraubenspindel Veranlassung geben.In these known pumps, the threaded spindle is mutually exclusive with cutting right and left-hand thread. This creates steep threads necessary, in turn, to engage a worm gear between Arrange for the drive motor and screw spindle.

Von diesen bekannten Pumpen unterscheidet sich diejenige nach der Erfindung dadurch, da.ß die Gewindespindel nur ein Gewinde besitzt (Rechts- oder Linksgewinde), und daß der Antriebsmotor unmittelbar auf die Gewindespindel einwirkt, wobei der Hubu-echsel durch Umpolarisieren des Antriebsmotors bewirla wird. Dabei ist es gleichgültig, ob der Stator oder der Rotor des Motors umpolarisiert wird.Of these known pumps, the one after the differs Invention in that the threaded spindle has only one thread (right-hand or Left-hand thread), and that the drive motor acts directly on the threaded spindle, whereby the Hubu-echsel is caused by reversing the polarization of the drive motor. Included it does not matter whether the stator or the rotor of the motor is repolarized.

Die Pumpe nach der Erfindung ist auf der Zeichnung schematisch veranschaulicht.The pump according to the invention is illustrated schematically in the drawing.

In dem Zylinder a befindet sich der Pumpenkolben b. Der Kolben stellt eine auf der Schraubenspindel c durch Drehung der letzteren verschiebbare Mutter dar. Die Schrauben-Spindel c wird unter Zwischenschaltung einer Kupplung d durch einen Hauptstrommotor e angetrieben, dessen Rotor mit f und dessen Stator mit ä bezeichnet ist. h und i sind die Saug- und Druckventile; h und L sind An-Schläge, die in die Enden des Zylinders a -hineinragen und durch die geführte Stange ztz miteinander verbunden sind. Die Bewegung der Stange m überträgt sich auf die Glieder eines elektrischen Doppelschalters it in der aus der Zeichnung ersichtlichen Weise.The pump piston b is located in the cylinder a. The piston represents a nut which can be displaced on the screw spindle c by rotating the latter. The screw spindle c is driven by a main current motor e with the interposition of a clutch d, the rotor of which is denoted by f and the stator of which is denoted by ä. h and i are the suction and discharge valves; h and L are stops which protrude into the ends of the cylinder a and are currently connected to one another by the guided rod. The movement of the rod m is transmitted to the links of an electric double switch it in the manner shown in the drawing.

Es sei angenommen, der Pumpenkolben b bewege sich infolge entsprechender Drehung der Schraubenspindel e nach rechts; sobald der Kolben am Anschlag l anlangt, verschiebt er ihn nach rechts. Dadurch wird der Doppelschaltern so verlegt, daß ein bislang am positiven Pol. gelegener Kontaktarm an den negativen Pol gelangt, und der bislang am negativen Pol der Leitung befindliche Kontaktarm gelangt an den bis dahin freili,eg enden positiven Pol der Leitung. Dadurch erfolgt eine Umpolarisierung der Wicklung des Stators g des Elektromotors e und eine Umkehrung der Drehbewegung des Rotors f. Der Pumpenkolben läuft nunmehr von rechts nach links, bis wieder eine Umstellung des Dopschalters it erfolgt.It is assumed that the pump piston b moves to the right as a result of a corresponding rotation of the screw spindle e; as soon as the piston reaches the stop l, it moves it to the right. As a result, the double switch is relocated in such a way that one was previously on the positive pole. situated contact to the negative pole passes, and the contact previously located at the negative pole of the line elang g t to the hitherto freili, eg forming the positive pole of the line. This results in a polarization of the winding of the stator g of the electric motor e and a reversal of the rotary movement of the rotor f. The pump piston now runs from right to left until the double switch it is switched over again.

Claims (1)

PATr#_N-rAxsPRU CH Kolbenpumpe mit elektrischem Antrieb und selbsttätiger elektrischer Umsteuerung der Kolbenbewegung, bei der sich der Kolben auf einer in Drehung versetzten Schraubenspindel nach Art einer Schraubenmutter verschiebt, dadurch gekennzeichnet, daß der Kolben bei seiner Annäherung an die Hubwechselpunkte je einen Anschlag verschiebt, wodurch die Umpolarisierung und die dadurch bedingte Umdrehung der Umlaufsrichtung des die eingängige Gewindespindel antreibenden Elektromotors, also die Umkehr der Kolbenbewegung, veranlaßt wird-PATr # _N-rAxsPRU CH piston pump with electric drive and automatic electrical reversal of the piston movement, during which the piston moves on an in Rotation offset screw spindle moves like a screw nut, thereby characterized in that the piston depending on its approach to the stroke change points a stop moves, whereby the polarization and the resulting Rotation of the direction of rotation of the electric motor driving the single-start threaded spindle, thus the reversal of the piston movement is caused-
DEK111670D Piston pump with electrical drive and automatic electrical reversal of the piston movement Expired DE493433C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK111670D DE493433C (en) Piston pump with electrical drive and automatic electrical reversal of the piston movement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK111670D DE493433C (en) Piston pump with electrical drive and automatic electrical reversal of the piston movement

Publications (1)

Publication Number Publication Date
DE493433C true DE493433C (en) 1930-03-11

Family

ID=7242273

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK111670D Expired DE493433C (en) Piston pump with electrical drive and automatic electrical reversal of the piston movement

Country Status (1)

Country Link
DE (1) DE493433C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1094320B (en) * 1958-07-04 1960-12-08 Sihn Kg Wilhelm Jun Time-dependent switching mechanism for motor vehicle antennas
DE19841085A1 (en) * 1998-09-09 2000-03-23 Webasto Thermosysteme Gmbh Fuel supply device for engine-dependent vehicle heating apparatus, has electric motor driving piston via drive member in fuel supply direction and further fuel reservoir with piston
DE102004052168A1 (en) * 2004-10-27 2006-05-04 Compart Compressor Technology Gmbh & Co. Kg Reciprocating engine for compressing gas, has linear motor utilized as linear drive, where reciprocating engine is driven by linear drive and not by crank drive or fluid, and can be operated with or without lubrication

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1094320B (en) * 1958-07-04 1960-12-08 Sihn Kg Wilhelm Jun Time-dependent switching mechanism for motor vehicle antennas
DE19841085A1 (en) * 1998-09-09 2000-03-23 Webasto Thermosysteme Gmbh Fuel supply device for engine-dependent vehicle heating apparatus, has electric motor driving piston via drive member in fuel supply direction and further fuel reservoir with piston
DE19841085C2 (en) * 1998-09-09 2003-11-20 Webasto Thermosysteme Gmbh Fuel supply device for an engine-independent vehicle heater
DE102004052168A1 (en) * 2004-10-27 2006-05-04 Compart Compressor Technology Gmbh & Co. Kg Reciprocating engine for compressing gas, has linear motor utilized as linear drive, where reciprocating engine is driven by linear drive and not by crank drive or fluid, and can be operated with or without lubrication

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