EP2513479A1 - Coolant compressor with linear drive - Google Patents
Coolant compressor with linear driveInfo
- Publication number
- EP2513479A1 EP2513479A1 EP10807312A EP10807312A EP2513479A1 EP 2513479 A1 EP2513479 A1 EP 2513479A1 EP 10807312 A EP10807312 A EP 10807312A EP 10807312 A EP10807312 A EP 10807312A EP 2513479 A1 EP2513479 A1 EP 2513479A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- piston
- permanent magnet
- refrigerant compressor
- compressor according
- cylinder
- 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.)
- Granted
Links
- 239000002826 coolant Substances 0.000 title abstract 3
- 230000005291 magnetic effect Effects 0.000 claims abstract description 25
- 238000004804 winding Methods 0.000 claims abstract description 10
- 239000003507 refrigerant Substances 0.000 claims description 50
- 238000000034 method Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 4
- 239000003302 ferromagnetic material Substances 0.000 claims description 4
- 230000000670 limiting effect Effects 0.000 claims description 3
- 230000005284 excitation Effects 0.000 abstract description 4
- 230000001846 repelling effect Effects 0.000 abstract 1
- 238000013459 approach Methods 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000010355 oscillation Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 235000019577 caloric intake Nutrition 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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
- F04B17/04—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors 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
- 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
- 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
- F04B49/12—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 varying the length of stroke of the working members
-
- 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
-
- 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
- F04B2201/0206—Length of piston stroke
Definitions
- the invention relates to a refrigerant compressor with a hermetically sealed compressor housing, in the interior of a refrigerant-compressing piston-cylinder unit is arranged, the cylinder housing is closed at the end by means of a cylinder head, in which a suction port and a pressure port are provided, via which refrigerant sucked via a suction valve through the suction port and is compressed via a pressure valve through the pressure port, wherein the piston-cylinder unit has at least one piston guided in a piston bore of the cylinder housing, wherein between the cylinder head and a first end face of the piston, a working space for the compression of Refrigerant is formed, wherein a linear drive is provided, comprising at least one vibrating body surrounded by a field winding, which is connected to the piston in order to move it oscillating along a piston longitudinal axis, according to ß the preamble of claim 1.
- the refrigeration process with azeotropic gases as such has long been known.
- the refrigerant is heated by energy intake from the space to be cooled in an evaporator and finally overheated, which leads to evaporation and by means of a piston-cylinder unit of the
- the piston-cylinder unit comprises a cylinder housing provided with a piston bore, in which an oscillating piston is guided.
- the piston bore of the cylinder housing is closed in a first axial end of a cylinder head or a valve plate, while the piston bore is open in a second axial end portion for receiving the piston or in the assembled state of the refrigerant compressor is penetrated by a connecting rod.
- the cylinder head can generally be designed on the one hand as a solid, cap-shaped component, for example with a pressure chamber and a suction chamber, which carries a valve plate on its inside. It can be designed as an annular component which holds the valve plate on the cylinder housing, but it can also be designed only as a valve plate which is clamped by means of a clamping device on the cylindrical part of the cylinder housing.
- the suction port for sucking the refrigerant from the refrigerant circuit is then arranged, and the pressure port through which the compressed refrigerant after the
- Compression process is pushed out into the refrigerant circuit through the piston.
- the valve plate is screwed to the most widespread refrigerant piston compressors with the front side of the cylinder housing.
- bores are arranged both on the cylinder housing and in the valve plate, wherein the bores in the cylinder housing are each provided with a thread, via which the screw connection is made.
- a cylinder cover having a pressure chamber in which the ejected from the cylinder, compressed Refrigerant is briefly cached, in order subsequently to flow into the refrigerant circuit.
- Embodiments are also known in which a suction chamber corresponding to the pressure chamber is provided, via which the refrigerant is sucked through the suction opening into the cylinder. Pressure chamber and suction chamber are separated from each other in such cases by appropriate structural measures in the cylinder cover.
- a refrigerant compressor of conventional design comprises an electric motor which drives the piston oscillating in the piston bore via a crankshaft.
- the disadvantage of such systems is mechanical wear in the spring elements and the piston components.
- the spring elements take up valuable space and prove to be inflexible if the cooling capacity of the refrigerant compressor or the piston stroke to be changed.
- the present invention is therefore based on the object to propose a simple and reliable way to limit the piston travel in refrigerant compressors with linear drive, which makes dispensable both a providence of mechanical spring elements and a provident consuming sensor and control electronics to limit the piston travel.
- dead space should be reduced as possible.
- the piston-cylinder unit is equipped with at least one permanent magnet assembly comprising at least one arranged on the piston or on a component connected to the piston first permanent magnet and at least one arranged on the cylinder housing or on a component connected to the cylinder housing second Permanent magnet, wherein the first permanent magnet and the second permanent magnet, each having the same magnetic pole direction to each other to limit the piston travel in the region of top dead center and / or in the region of bottom dead center when approaching the first permanent magnet to the second permanent magnet a repulsive effect between the two To produce permanent magnets.
- first and second permanent magnets can be arranged in any position and constellation.
- the component connected to the piston on which the at least one first - movable - permanent magnet is arranged, it may be in a special embodiment of the invention to the oscillating body or a piston connecting the piston with the oscillating piston piston shaft.
- a valve plate may be arranged in the cylinder head, wherein the at least one second permanent magnet on the Valve plate, preferably at least partially sunk in the valve plate, is arranged.
- the piston travel is limited in the region of top dead center.
- the second permanent magnet can be arranged both outside and inside or even completely or partially in the valve plate.
- the limitation of the piston travel at bottom dead center can also be done with permanent magnets, but it can also be done conventionally, for example by means of spring elements.
- the component connected to the cylinder housing, on or in which the at least one second permanent magnet is arranged is a housing surrounding the oscillating body.
- This housing is preferably a holder for the field winding (the stator) or the field winding itself.
- the at least one second permanent magnet is disposed within the piston bore of the cylinder housing, in particular within the working space or the working space delimiting.
- one of the permanent magnets could be recessed in the cylinder housing so that it limits the working space with its front side.
- the working space is formed by the cylinder housing and designates the space swept by the piston during its oscillation within the cylinder housing.
- the second permanent magnet outside the piston bore or the working space.
- the at least one first permanent magnet can be arranged outside the piston bore or the working space, for example, as already proposed above, on the oscillating body or on the piston skirt.
- another or further permanent magnet arrangement may be provided, wherein the at least one second permanent magnet is arranged in an end region of the cylinder housing opposite the cylinder head. It is useful if the at least one first permanent magnet is arranged on a cylinder head facing away from the second end face of the piston or on a piston skirt.
- a particularly simple embodiment provides that the at least one first permanent magnet is arranged in the region of the first end face of the piston facing the cylinder head.
- the at least one first permanent magnet is sunk in sections or entirely in the end face and / or in the piston skirt.
- the recessed first and / or second permanent magnet it is possible for the recessed first and / or second permanent magnet to be encased by the material of the piston or of the cylinder head or of the valve plate, preferably encased on all sides.
- the permanent magnets are sunk in the end faces of the piston and / or the valve plate, that between the permanent magnet and the piston or permanent magnet and valve plate at least one free space is present, which communicates with the working space.
- This free space preferably extends along the entire circumference of the permanent magnet.
- the gap-shaped recess favors a free development of the magnetic effect of the permanent magnet or an expansion of the magnetic field lines emanating from the permanent magnet.
- An expansion of the magnetic field lines emanating from the permanent magnet is further promoted by the free space according to a preferred embodiment of the invention is designed as a gap, the clear opening width widens in the direction of the working space.
- the free space may be filled with a non-ferromagnetic material, such as plastic.
- the piston-side arranged first permanent magnet is arranged opposite to the cylinder housing side arranged second permanent magnet.
- the two permanent magnets can be arranged congruently, for example, in the piston longitudinal axis.
- the permanent magnets can be made substantially cylindrical.
- the permanent magnets may be made substantially annular, wherein the annular shape is preferably rotationally symmetrical to the piston longitudinal axis.
- the permanent magnets in this case preferably have a ring-cylindrical shape, so that sunk permanent magnets can be surrounded by a free space in the form of an annular gap.
- the permanent magnets can also be arranged rotationally symmetrical to an axis which is parallel to the piston longitudinal axis.
- the first permanent magnet arranged on the piston side essentially has a field strength of the same magnitude, that is, with the same material, preferably a substantially equal mass, on the second permanent magnet arranged on the cylinder housing side. This creates a symmetric magnetic field.
- a uniform magnetic field is also achieved when a plurality of permanent magnets are arranged on a concentric to the piston longitudinal axis circle, wherein the angular distance of adjacent permanent magnets is substantially equal.
- the piston-side and the cylinder-housing-side permanent magnets are expediently arranged on a circle, whereby the piston-side and cylinder-housing-side permanent magnets lie opposite one another (ie cover in the piston longitudinal axis).
- the piston can be designed as a double piston, comprising two at opposite End portions of the double piston arranged, one end face of the double piston forming piston sections. Between the first end face of the double piston and a first cylinder head comprising a first valve head, a first working space and between the second end face of the double piston and a second cylinder head comprising a second valve plate, a second working space is formed.
- the oscillating body is arranged between the two end faces of the double piston, preferably enclosed by the double piston, wherein an arrangement according to the invention of permanent magnets is provided for each cylinder head and piston portion pairing.
- the piston-cylinder unit is designed according to one of claims 1 to 20 and the drive strength of the linear drive is set in the case of predetermined permanent magnets in that the piston changes its direction of movement in a predetermined top dead center and / or bottom dead center without the use of a mechanical spring element.
- the piston changes its direction of movement both at the top and bottom dead center due to only one permanent magnet arrangement. But it can also be provided that the piston only in a dead center its direction of movement due to a
- Permanent magnet arrangement changes, while a known spring element is used for the change of the direction of movement in the other dead center.
- the permanent magnets of the piston forms together with the oscillating body and possibly the piston skirt a non-linear mass-spring system.
- different resonance frequencies are possible in this mass-spring system, if one does not take full advantage of the mass spring system, while in a linear mass spring system, such as the exclusive use of spring elements, only one resonant frequency occurs at which the piston is normally operated. According to the invention therefore different piston frequencies and thus different cooling capacities are possible.
- the drive strength and / or frequency of the linear drive can be adjusted on the basis of measured position data of the piston or magnetic field strengths. Hall sensors such as those used in inductive encoders or current-voltage measurements of the excitation winding can be used for this purpose.
- Fig. 1 is a schematic representation of an inventive
- Fig. 2 is a longitudinal section through an inventive
- Fig. 3 shows a piston-cylinder unit according to the invention with a spring element
- Fig. 4 shows an inventive piston-cylinder unit
- Fig. 5 shows the embodiment of FIG. 4, wherein the
- Piston is in its bottom dead center Fig. 6 detail "B" of FIG. Fig. 7 shows a modification of the embodiment according to Fig. 4 with spring element
- Fig. 8 is a schematic representation of the in the field of
- Permanent magnets developed magnetic fields in the form of field lines (piston at bottom dead center)
- Fig. 11 is a force-displacement diagram showing the increase of the magnetic force upon approach of the first to the second permanent magnet
- Fig. 12 shows a piston-cylinder unit according to the invention with
- Double piston Fig. 13 is a schematic representation of a in a
- Fig. 1 shows schematically the structure of a linear compressor 23 according to the invention, which is arranged by means of a suspension device 28 within a hermetically sealed compressor housing 29 of a small refrigerant compressor shown in Fig.13.
- the linear compressor 23 comprises a piston-cylinder unit 21 with at least one piston 3 guided in a piston bore 2 of a cylinder housing 1.
- the cylinder housing 1 is closed at the end with a cylinder head 4, more precisely, with a valve plate 5 held in the cylinder head 4.
- the piston 3 is oscillatingly movable by a linear drive 6 along a piston longitudinal axis 9.
- the linear drive 6 comprises in a known manner one of a field winding (a stator) 8 surrounded oscillating body 7, which is connected to the piston 3 rigid or articulated.
- the oscillating body 7 is connected to the piston 3 by means of a piston rod or a piston stem 22.
- the piston-cylinder unit 21 is equipped with at least one permanent magnet arrangement (namely two: IIa and 12a, IIb and 12b), comprising in each case at least one component on the piston 3 or on a component connected to the piston 3 - in this case, in particular arranged around the oscillating body 7 or about the piston shaft 22 arranged first permanent magnets IIa, IIb and with at least one on the cylinder housing 1 or on a connected to the cylinder housing 1 component second permanent magnet 12a, 12b.
- at least one permanent magnet arrangement namely two: IIa and 12a, IIb and 12b
- the at least one first permanent magnet IIa, IIb and the at least one second permanent magnet 12a, 12b each with the same Magnetpolides to each other, so that when approaching the at least one first permanent magnet 11 to the at least one second permanent magnet 12, a repulsive effect between the two permanent magnets eleventh and 12 and thus the piston travel in the region of top dead center and / or in the region of the bottom dead center of the piston 3 limiting effect arises.
- a first permanent magnet IIa on the front side of the piston 3, a further first permanent magnet IIb is mounted, namely an annular permanent magnet.
- a second permanent magnet 12a is attached, on the opposite side of the cylinder housing 1, where the piston shaft 22 passes through the cylinder housing 1, another second permanent magnet 12b.
- the latter is ring-shaped educated.
- the permanent magnets IIa and 12a cooperate and determine the force increase in the direction of the top dead center of the piston 3, while the permanent magnets IIb and 12b cooperate and determine the increase in force in the direction of the bottom dead center of the piston 3 due to their field strength.
- the points at which the piston 3 actually reverses may vary.
- FIG. 2 an embodiment similar to that shown in Fig. 1, except that in Fig. 2 in the first end face 3 a of the piston 3, an annular permanent magnet 11 and corresponding thereto in the valve plate 5 of the cylinder head 4, an annular second permanent magnet 12 is sunk ,
- the working space 14 facing surface of the first permanent magnet 11 is in a plane with the first end face 3 a of the piston 3.
- the working space 14 facing surface of the second permanent magnet 12 is in a plane with the flat inner surface of the valve plate. 5
- the valve plate 5 has a suction opening 17, which is closable on the inside of the valve plate 5 with a suction valve 15. It also has a pressure opening 18 which can be closed on the outside of the valve plate 5 with a pressure valve 16.
- the refrigerant flows via the suction opening 17 past the opened suction valve 15 into a working space 14 formed between the valve plate 5 and a first end face 3a of the piston 3 facing it.
- the piston shaft 22 is not shown in Fig. 2.
- the two permanent magnets 11, 12 have identical dimensions and are made of the same ferromagnetic material, so that they have the same magnetic field strength. They are designed as annular cylinder, the inner and outer surfaces thus have the shape of a cylinder jacket, the support surface on the piston 3 has the shape of a circular ring, as well as the working space 14 facing surface of the permanent magnets 11, 12th
- Both permanent magnets 11, 12 are recessed into annular recesses of the piston 3 and the valve plate 5, so that the working space 14 facing surface of the permanent magnets 11, 12 with the first end face 3a of the piston or with the inside of the valve plate 5 just finished.
- the permanent magnets 11, 12 are in each case at the bottom of the annular recess, between the cylinder surface designed as a cylindrical outer surface of the permanent magnets 11, 12 and the wall of the recess, however, a free space 13 is provided, so that the magnetic field lines - of the metallic material of the piston. 3 or the valve plate 5 undisturbed - can escape through the cylinder jacket-shaped outer surface of the permanent magnets 11, 12.
- the free space 13 may also, as shown in the piston 3, be filled with non-ferromagnetic material, such as plastic. As a result, the dead space is reduced, so that space between the piston at the dead center and valve plate, which may be filled with refrigerant.
- the piston stroke is limited at top dead center by the permanent magnets 11, 12.
- a further first permanent magnet such as permanent magnet IIb in FIG. 1
- a spring element 27 may be provided which determines the bottom dead center of the piston 3.
- the embodiment of the piston-cylinder unit is similar to that of FIG. 2.
- the excitation winding 8 is also shown in FIG. 3.
- the first permanent magnets IIa, IIb are not arranged on the piston 3, but on the cylindrical oscillating body 7 of the linear drive 6.
- the corresponding second permanent magnets 12a, 12b are arranged on the inside of the housing 24 of the linear drive 6, so that they are aligned in the direction of the piston longitudinal axis 9 with the permanent magnets IIa, IIb.
- the permanent magnets IIa, IIb, 12a, 12b are also designed here as a ring cylinder, but not recessed in the oscillating body 7 or housing 24, but attached to the circular surfaces of the oscillating body 7 and on opposite inner walls of the housing 24.
- the ring cylinders are arranged concentrically to the piston longitudinal axis 9.
- the permanent magnets IIb and 12b have the greatest possible distance from one another, which essentially corresponds to the piston stroke of the piston 3.
- the permanent magnets IIa and 12a have the greatest possible distance from one another, which corresponds essentially to the piston stroke of the piston 3.
- Fig. 6 detail B of Fig. 4 is shown enlarged.
- the permanent magnets IIa and 12a can be seen, of the second permanent magnet arrangement (b) only permanent magnet IIb.
- the radial outer diameter of the permanent magnets IIa and IIb corresponds almost to the radial diameter of the cylindrical oscillating body 7
- the diameter of the permanent magnets IIa, IIb, 12a, 12b is only about 1-5% smaller than that of the oscillating body. 7
- FIG. 7 shows a modification of the embodiment variant according to FIG. 4 in that the permanent magnet arrangement for determining the bottom dead center is replaced by a spring element 27 from FIG. 4.
- the permanent magnets IIa and 12a of FIG. 4 are maintained, the permanent magnets IIb and 12b are replaced by the spring element 27.
- 8 shows a schematic representation of the magnetic fields developed in the region of the permanent magnets 11, 12 of FIGS. 2 and 3 in the form of field lines 25 and 26, the piston 3 being in the region of its bottom dead center. Magnetic field lines are closed, they emerge at the so-called "North Pole” from the permanent magnet and at the so-called “South Pole” in this one. When a permanent magnet with its south pole approaches the north pole of another permanent magnet, the permanent magnets attract and adhere to each other.
- Fig. 9 shows the piston-cylinder assembly 21 as the compression stroke progresses, the piston is on its way towards top dead center.
- the magnetic fields of the two permanent magnets 11, 12 affect each other significantly more than in Fig. 8.
- the distance between the own field lines 25, 26 of the permanent magnet decreases, the magnetic field strength is greater, the field lines are like a "spring tensioned ".
- the piston 3 has reached its top dead center. An abutment of the first end face 3a of the piston 3 to the valve plate 5 is prevented because the two permanent magnets 11 and 12 each have the same magnetic pole direction (with the "north pole") to each other and therefore repel each other switch off, the piston 3 would be moved by the repulsive force of the permanent magnets 11, 12 to the right.
- Fig. 11 shows a force-displacement diagram for illustrating the increase of the magnetic force when approaching the first 11 to the second permanent magnet 12.
- the distance between the first 11 and the second permanent magnet 12 in cm plotted on the vertical axis Magnetic force F in%, where 100% represents the repulsive magnetic force at top dead center.
- This force must apply the linear drive 6 and the inertia of the piston 3 with the vibrating body 7 to keep the piston 3 for a short time at top dead center.
- the top dead center is given in this example at a distance of 0.05-0.5 mm between the first 11 and second permanent magnet 12. Both the diamond-shaped measuring points and the measuring curve interpolated on the basis of the measuring points are shown.
- Fig. 12 shows a piston-cylinder unit according to the invention with a double piston.
- the piston 3 is embodied as a double piston and comprises two piston sections 19, 20 arranged at opposite end regions, each forming an end face 3a, 3b of the double piston.
- a first working space is created 14 formed and between the second end face 3b of the double piston and a second valve plate 5 'comprehensive second cylinder head 4', a second working space 14 '.
- the oscillating body 7 is arranged between the two end faces 3a, 3b of the double piston, preferably enclosed by the double piston 3.
- a permanent magnet arrangement according to the invention IIa, 12a or IIb, 12b is provided for each cylinder head-piston section pairing 4/19 or 4 '/ 20, a permanent magnet arrangement according to the invention IIa, 12a or IIb, 12b is provided. List of reference numbers:
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0079009U AT12038U1 (en) | 2009-12-14 | 2009-12-14 | REFRIGERANT COMPRESSOR WITH LINEAR ACTUATOR |
PCT/AT2010/000478 WO2011079330A1 (en) | 2009-12-14 | 2010-12-14 | Coolant compressor with linear drive |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2513479A1 true EP2513479A1 (en) | 2012-10-24 |
EP2513479B1 EP2513479B1 (en) | 2015-08-19 |
Family
ID=44246906
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10807312.3A Active EP2513479B1 (en) | 2009-12-14 | 2010-12-14 | Coolant compressor with linear drive |
Country Status (5)
Country | Link |
---|---|
US (1) | US20130034456A1 (en) |
EP (1) | EP2513479B1 (en) |
CN (1) | CN102741551A (en) |
AT (1) | AT12038U1 (en) |
WO (1) | WO2011079330A1 (en) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012210347A1 (en) * | 2012-06-19 | 2013-12-19 | Hilti Aktiengesellschaft | Setting tool and control method |
US8714946B2 (en) | 2012-09-13 | 2014-05-06 | General Electric Company | Linear compressor with an electro-magnetic spring |
DE102014205209A1 (en) * | 2014-03-20 | 2015-09-24 | Robert Bosch Gmbh | Linear drive, piston pump arrangement |
US9145878B1 (en) * | 2014-07-11 | 2015-09-29 | Marvin Ray McKenzie | Oscillating linear compressor |
US10502201B2 (en) | 2015-01-28 | 2019-12-10 | Haier Us Appliance Solutions, Inc. | Method for operating a linear compressor |
US10208741B2 (en) | 2015-01-28 | 2019-02-19 | Haier Us Appliance Solutions, Inc. | Method for operating a linear compressor |
US10190604B2 (en) * | 2015-10-22 | 2019-01-29 | Caterpillar Inc. | Piston and magnetic bearing for hydraulic hammer |
US10174753B2 (en) * | 2015-11-04 | 2019-01-08 | Haier Us Appliance Solutions, Inc. | Method for operating a linear compressor |
US10830230B2 (en) | 2017-01-04 | 2020-11-10 | Haier Us Appliance Solutions, Inc. | Method for operating a linear compressor |
CN107061221B (en) * | 2017-01-24 | 2020-03-31 | 青岛海尔智能技术研发有限公司 | Linear compressor |
US10670008B2 (en) | 2017-08-31 | 2020-06-02 | Haier Us Appliance Solutions, Inc. | Method for detecting head crashing in a linear compressor |
US10641263B2 (en) | 2017-08-31 | 2020-05-05 | Haier Us Appliance Solutions, Inc. | Method for operating a linear compressor |
CN108194312A (en) * | 2018-01-29 | 2018-06-22 | 东莞市卓奇电子科技有限公司 | Permanent magnetism oscillator piston component, asynchronous push-pull type Electromagnetic Vibrator compressor and asynchronous double-push-pull type Electromagnetic Vibrator compressibility |
CN114233719A (en) * | 2021-11-30 | 2022-03-25 | 江苏龙城鸿辉液压机电有限公司 | Buffer structure of ultra-large hydraulic hoist |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU1312246A2 (en) * | 1984-04-13 | 1987-05-23 | Грузинский политехнический институт им.В.И.Ленина | Electromagnetic machine |
CN2119514U (en) * | 1991-11-14 | 1992-10-21 | 臧立华 | Electricity-saving magnetic compressor |
DE19504751A1 (en) * | 1995-02-03 | 1996-08-08 | Werner Sommer | Magnet pump for liquid and gas media |
EP0864750A4 (en) * | 1996-07-09 | 1999-06-09 | Sanyo Electric Co | Linear compressor |
JP2002542428A (en) * | 1999-04-19 | 2002-12-10 | ライボルト ヴァークウム ゲゼルシャフト ミット ベシュレンクテル ハフツング | Oscillating piston drive |
BR9907432B1 (en) | 1999-12-23 | 2014-04-22 | Brasil Compressores Sa | COMPRESSOR CONTROL METHOD, PISTON POSITION MONITORING SYSTEM AND COMPRESSOR |
DE10314007A1 (en) * | 2003-03-28 | 2004-10-07 | Leybold Vakuum Gmbh | Piston vacuum pump for pumping gas, has sensor that detects speed of switching supply of energizing current between electrical coils by magnet arrangement |
DE102006009270A1 (en) | 2006-02-28 | 2007-08-30 | BSH Bosch und Siemens Hausgeräte GmbH | Linear compressor for cooling equipment e.g. refrigerator, freezer has linkage having spring, and which couples compressor piston to drive |
DE102006009256A1 (en) | 2006-02-28 | 2007-08-30 | BSH Bosch und Siemens Hausgeräte GmbH | Compressor apparatus for household cooling equipment e.g. refrigerator, freezer has linear drive having adjustable rotor zero position, and linear compressor having adjustable piston zero position |
BRPI0800251B1 (en) | 2008-02-22 | 2021-02-23 | Embraco Indústria De Compressores E Soluções Em Refrigeração Ltda | linear compressor control system and method |
CN101240793B (en) | 2008-03-14 | 2011-04-27 | 刘新春 | Linear motor double cylinder compression pump |
-
2009
- 2009-12-14 AT AT0079009U patent/AT12038U1/en not_active IP Right Cessation
-
2010
- 2010-12-14 WO PCT/AT2010/000478 patent/WO2011079330A1/en active Application Filing
- 2010-12-14 US US13/515,583 patent/US20130034456A1/en not_active Abandoned
- 2010-12-14 EP EP10807312.3A patent/EP2513479B1/en active Active
- 2010-12-14 CN CN2010800626814A patent/CN102741551A/en active Pending
Non-Patent Citations (1)
Title |
---|
See references of WO2011079330A1 * |
Also Published As
Publication number | Publication date |
---|---|
AT12038U1 (en) | 2011-09-15 |
CN102741551A (en) | 2012-10-17 |
EP2513479B1 (en) | 2015-08-19 |
US20130034456A1 (en) | 2013-02-07 |
WO2011079330A1 (en) | 2011-07-07 |
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