DE939829C - Starting device for an electric motor driven piston compressor - Google Patents

Starting device for an electric motor driven piston compressor

Info

Publication number
DE939829C
DE939829C DEM17028A DEM0017028A DE939829C DE 939829 C DE939829 C DE 939829C DE M17028 A DEM17028 A DE M17028A DE M0017028 A DEM0017028 A DE M0017028A DE 939829 C DE939829 C DE 939829C
Authority
DE
Germany
Prior art keywords
electric motor
starting device
driven piston
motor driven
piston compressor
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
DEM17028A
Other languages
German (de)
Inventor
Willi Brosowski
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.)
MANNESMANN FA A
Original Assignee
MANNESMANN FA A
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 MANNESMANN FA A filed Critical MANNESMANN FA A
Priority to DEM17028A priority Critical patent/DE939829C/en
Application granted granted Critical
Publication of DE939829C publication Critical patent/DE939829C/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00Control, 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
    • F04B49/22Control, 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 by means of valves
    • F04B49/24Bypassing
    • F04B49/243Bypassing by keeping open the inlet valve
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component 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
    • F04B39/12Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/125Cylinder heads

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)

Description

Die Erfindung betrifft eine Anlaßvorrichtung für elektromotorisch angetriebene Kolbenverdichter mit einem Ventil im Zylinderkopf, das- beim Anlassen durch einen elektromagnetisch betätigten Stift offengehalten wird und nach erfolgtem Anlauf schließt.The invention relates to a starting device for an electric motor powered piston compressor with a valve in the cylinder head that- when starting is held open by an electromagnetically actuated pin and afterwards Startup closes.

Es sind Regelvorrichtungen für Kompressoren für Kühlanlagen bekanntgeworden, bei denen ein Magnet in Abhängigkeit von der Stromaufnahme des Antriebsmotors ein Ventil steuert und die Höhe des vom Kompressor erzeugten Druckes auf einen eingestellten Wert begrenzt ist. Solche Regelvorrichtungen sind kompliziert und teuer. Außerdem ist es bekannt, ein im Zylinderkopf eines Kompressors befindliches elektromagnetisch betätigtes Ventil in eine Phase des Motorstromkreises zu legen und auf diese Weise unter Ausnutzung des Stromstärkenunterschiedes zwischen Einschalt- und Betriebsstrom den Kompressor beim Anlaufen zu entlasten. Schließlich ist bereits vorgeschlagen worden, zur Schaltung einer Magnetpulverkupplung die Erregung der Magnetspule der Magnetpul'verkupplung zwangläufig mit der Anlaßschaltung des Motors derart zu verbinden, daß die Erregung- der Spule erst mit der Umschaltung des Anlassers auf die Betriebsstellung eingeschaltet wird.Control devices for compressors for refrigeration systems have become known, in which a magnet depends on the power consumption of the drive motor Valve controls and the level of the pressure generated by the compressor to a set Value is limited. Such control devices are complex and expensive. aside from that it is known, a located in the cylinder head of a compressor electromagnetically to place the actuated valve in a phase of the motor circuit and in this way using the current strength difference between inrush and operating current to relieve the compressor when it starts. Finally, it is already proposed been, for switching a magnetic particle clutch, the excitation of the magnet coil Magnetic particle coupling must be connected to the starter circuit of the engine in such a way that that the coil is only excited when the starter is switched to the operating position is switched on.

Auch die beiden zuletzt genannten Einrichtungen sind verhältnismäßig kompliziert und als einfache Anlaßhilfe für leistungsschwache Kompressormotoren nicht geeignet. _ Die Erfindung besteht darin, daß der den Stift betätigende Magnet in die Hilfsphasenwicklung eines als Antriebsmotor dienenden Hilfsphasenwechselstrommotors eingeschaltet ist. Im Gegensatz zu den bekannten Vorrichtungen ist diese sehr einfach. Das Ventil ist während des Anlaßvorganges geöffnet und schließt erst, wenn die Hilfsphasenwicklung des Antriebsmotors nach Beendigung des Anlaßvorganges abgeschaltet wird.The last two institutions mentioned are also proportionate complicated and as a simple starting aid for low-power compressor engines not suitable. _ The invention consists in that the magnet actuating the pin into the auxiliary phase winding of an auxiliary phase AC motor serving as a drive motor is switched on. In contrast to the known devices, this is very simple. The valve is open during the starting process and only closes when the auxiliary phase winding the drive motor is switched off after completion of the starting process.

In der Zeichnung ist die Erfindung beispielsweise und schematisch dargestellt. Mit r ist der Zylinder und mit z der Kolben des Verdichters bezeichnet. Im Zylinderkopf 3 ist eine Ventilplatte q. gelagert, die durch Nocken 5 gehalten wird. Auf dem Zylinderkopf ist ein Elektromagnet angebracht, an dessen Kern 6 ein Stift 7 angebracht ist, der in den Zylinderkopf 3 hineinragt. Ist die Wicklung 8 des Elektromagneten stromlos, so wird der Kern 6 mit dem Stift 7 durch die Druckfeder 9 in der -dargestellten oberen Stellung gehalten. Sobald der Kolben :2 sich nach oben bewegt und den Zylinderinhalt verdichtet, schließt die Ventilplatte 4 die Öffnung io im Zylinderkopf 3. In der dargestellten Stellung des Elektromagneten leistet also der Kolben Verdichtungsarbeit.In the drawing, the invention is exemplified and schematic shown. With r the cylinder and with z the piston of the compressor is designated. In the cylinder head 3 there is a valve plate q. stored, held by cam 5 will. An electromagnet is attached to the cylinder head, at its core 6 a Pin 7 is attached, which protrudes into the cylinder head 3. Is the winding 8 of the electromagnet is de-energized, the core 6 with the pin 7 is de-energized by the compression spring 9 held in the upper position shown. As soon as the piston: 2 down moves up and compresses the cylinder contents, the valve plate 4 closes the opening io in the cylinder head 3. In the illustrated position of the electromagnet makes so the piston compression work.

Während des Anfahrens dagegen erhält die Magnetwicklung 8 Strom, und der Kern 6 ist in die Wicklung 8 hineingezogen. Demzufolge sitzt der Stift 7 auf .der Ventilplatte 4 auf und drückt diese auf die Nocken 5. Während des Kompressionshubes des Kolbens entweicht daher der Zylinderinhalt durch den Ringraum am Rande der Ventilplatte ¢ und die Öffnung io. Der Kolben 2 kann daher keine Verdichtungsarbeit leisten, und der Antriebsmotor braucht somit beim Anfahren des Verdichters diesen nur leer durchzudrehen.During start-up, on the other hand, the magnet winding 8 receives current, and the core 6 is drawn into the winding 8. As a result, the pin 7 is seated .the valve plate 4 and presses it onto the cams 5. During the compression stroke of the piston, therefore, the cylinder contents escape through the annular space on the edge of the valve plate ¢ and the opening io. The piston 2 can therefore not do any compression work, and the drive motor therefore only needs it to be empty when the compressor starts up to go nuts.

Claims (1)

PATENTANSPRUCH: Anlaßvorrichtung für elektromotorisch angetriebene Kolbenverdichter mit einem Ventil im Zylinderkopf, das beim Anlassen durch einen elektromagnetisch betätigten Stift offengehalten wird und nach erfolgtem Anlauf schließt, dadurch gekennzeichnet, daß der den Stift betätigende Magnet in die Hilfsphasenwicklung eines als Antriebsmotor dienenden Hilfsphasenwechselströmmotnrs eingeschaltet ist. Angezogene Druckschriften: Deutsche Patentschriften Nr. 821641, 688 9io, 87ö 438. Claim: starting device for electric motor-driven piston compressors with a valve in the cylinder head, which is kept open by an electromagnetically operated pin when starting and closes after start-up, characterized in that the magnet activating the pin is switched into the auxiliary phase winding of an auxiliary phase alternating current generator serving as a drive motor. Attached publications: German patent specifications No. 821641, 688 9io, 87ö 438.
DEM17028A 1953-01-17 1953-01-17 Starting device for an electric motor driven piston compressor Expired DE939829C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEM17028A DE939829C (en) 1953-01-17 1953-01-17 Starting device for an electric motor driven piston compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM17028A DE939829C (en) 1953-01-17 1953-01-17 Starting device for an electric motor driven piston compressor

Publications (1)

Publication Number Publication Date
DE939829C true DE939829C (en) 1956-03-01

Family

ID=7297361

Family Applications (1)

Application Number Title Priority Date Filing Date
DEM17028A Expired DE939829C (en) 1953-01-17 1953-01-17 Starting device for an electric motor driven piston compressor

Country Status (1)

Country Link
DE (1) DE939829C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2493421A1 (en) * 1980-11-11 1982-05-07 Tokico Ltd COMPRESSOR WITH STARTING LOAD REDUCTION DEVICE
DE3133589A1 (en) * 1981-08-25 1983-03-17 Aerzener Maschinenfabrik Gmbh, 3251 Aerzen Relief valve for the start-up operation of reciprocating or rotary-piston compressors

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE688910C (en) * 1937-06-22 1940-03-06 Linde Eismasch Ag Device for automatic starting of reciprocating compressors driven by an electric motor
DE821641C (en) * 1949-02-18 1951-11-19 Alfred Richter Automatic start-up and control device for refrigeration systems
DE870438C (en) * 1951-03-17 1953-03-12 Elektro Mechanik G M B H Device for switching a magnetic particle clutch for electric drive motors

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE688910C (en) * 1937-06-22 1940-03-06 Linde Eismasch Ag Device for automatic starting of reciprocating compressors driven by an electric motor
DE821641C (en) * 1949-02-18 1951-11-19 Alfred Richter Automatic start-up and control device for refrigeration systems
DE870438C (en) * 1951-03-17 1953-03-12 Elektro Mechanik G M B H Device for switching a magnetic particle clutch for electric drive motors

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2493421A1 (en) * 1980-11-11 1982-05-07 Tokico Ltd COMPRESSOR WITH STARTING LOAD REDUCTION DEVICE
DE3133589A1 (en) * 1981-08-25 1983-03-17 Aerzener Maschinenfabrik Gmbh, 3251 Aerzen Relief valve for the start-up operation of reciprocating or rotary-piston compressors

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