DE939829C - Starting device for an electric motor driven piston compressor - Google Patents
Starting device for an electric motor driven piston compressorInfo
- 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
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
- F04B49/22—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 by means of valves
- F04B49/24—Bypassing
- F04B49/243—Bypassing by keeping open the inlet valve
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/125—Cylinder heads
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)
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)
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)
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 |
-
1953
- 1953-01-17 DE DEM17028A patent/DE939829C/en not_active Expired
Patent Citations (3)
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)
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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