CN100394066C - Coil spring and reciprocating compressor having the same - Google Patents
Coil spring and reciprocating compressor having the same Download PDFInfo
- Publication number
- CN100394066C CN100394066C CNB2004800066249A CN200480006624A CN100394066C CN 100394066 C CN100394066 C CN 100394066C CN B2004800066249 A CNB2004800066249 A CN B2004800066249A CN 200480006624 A CN200480006624 A CN 200480006624A CN 100394066 C CN100394066 C CN 100394066C
- Authority
- CN
- China
- Prior art keywords
- helical spring
- inner ring
- end circle
- flex point
- circle
- 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 - Fee Related
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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
- 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
- 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
- F04B39/0027—Pulsation and noise damping means
- F04B39/0044—Pulsation and noise damping means with vibration damping supports
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- 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
-
- 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
- F04B39/0005—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 adaptations of pistons
- F04B39/0016—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 adaptations of pistons with valve arranged in the piston
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
- F16F1/04—Wound springs
- F16F1/06—Wound springs with turns lying in cylindrical surfaces
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
Abstract
A coil spring in accordance with the present invention includes inner coils formed as a wire is wound plural times; and an inflection portion having a nonlinear shape and formed at an outer circumferential surface of the end coil, which is positioned toward the inner coil. When connected to other component and is constricted and relaxed to absorb an impact or a vibration transmitted from the outside, the coil spring minimizes friction generated between itself and other components so that reliability of a reciprocating compressor having the coil spring can be improved.
Description
Technical field
The present invention relates to a kind of spring and compressor with this spring, the present invention more specifically relates to a kind of helical spring and has this helical spring reciprocal compressor, and it can apply load with the spring that is connected to miscellaneous part is repeated or the wearing and tearing and the noise that produce when impacting are reduced to minimum.
Background technique
Spring utilizes its elasticity to absorb external force, and external force is accumulated as elastic energy.Therefore, applying when impacting from the outside to spring, spring absorbs and impacts, and has therefore alleviated impact.In addition, in the power that continue to repeat, that is, vibration is by when the outside is delivered to spring, and spring absorbs vibration, and prevents that vibration transfer from arriving miscellaneous part.
According to shape and function, there are various springs, for example, and helical spring, leaf spring, torsion bar etc., and the using scope of spring is very wide.
In the spring, helical spring functional reliability height produce easily, and cost is low, particularly when use only is used for helical spring undercut (mole).Because these reasons, helical spring is widely used in various device.
Wire rod (wire rod) quilt of annular winding then, is scheduled to the number of turn with predetermined bent angle with the wire bending of aligning by shaping jig by the straightener aligning, thus the moulding helical spring.
Fig. 1 is the plan view that an existing helical spring embodiment is shown, and Fig. 2 illustrates this helical spring planimetric map.As shown in the figure, with wire at regular intervals, the same diameter spiral shape ground mode of twining several circles, come this helical spring of moulding.That is, helical spring comprises: inner ring, and it twines multiturn; And end circle 20, it lays respectively at the two ends of inner ring 10.
With wire at regular intervals, same external diameter spirality ground forms inner ring when twining a few circle wire, and is identical corresponding to the diameter wiry of inner ring.
The outer surface of end circle 20 constitutes the supporting surface 21 of contact miscellaneous part, forms supporting surface 21 on perpendicular to the plane of helical spring axis, and the end 22 of end circle almost contacts the circle that closes on very much 11 of inner ring 10.That is, be bent to form the surface of the end circle 20 that faces toward with inner ring 10, and be supporting surface 21 (it is the plane) on its another side.Interval (α 1) between this curved surface and the close circle 11 of this curved surface increases gradually from the end 22 of end circle.
The following describes this helical spring operation.
At first, helical spring is positioned between two parts, at this moment, these parts contact the supporting surface of supported end circle respectively.
When supporting helical spring parts helical spring is applied certain power, this power is passed to helical spring, therefore, as shown in Figure 3, be delivered to helical spring power and make this helical spring end circle 20 of formation and inner ring 10 distortion, therefore, the interval between each circle narrows down.Constitute helical spring end circle 20 and inner ring 10 to be out of shape the power that helical spring is applied that absorbs.
In this process,,, thereby make each circle distortion so the power that is applied by helical spring axial direction applies moment of torsion and moment of flexure to each circle owing to twine end circle 20 and inner ring 10 with the angle of pitch of regulation.At this moment, because to the moment of torsion and the moment of flexure of each circle effect, repulsion applies torque to each circle, thereby helical spring end circle 20 is moved at circumferencial direction.Because the supporting surface 21 of end circle 20 and the relative movement between the parts produce friction between the supporting surface 21 of holding circle and parts, therefore, make helical spring and parts generation wearing and tearing because of friction, thereby shortened the life-span of parts, and cause parts damages.In addition, produce frictional noise because of the friction between helical spring and the parts.
Summary of the invention
Therefore, the purpose of this invention is to provide a kind of helical spring and have this helical spring reciprocal compressor, it can will be connected to miscellaneous part and shrink and discharge when absorbing the shock and vibration of transmitting from the outside at helical spring, friction that produces between helical spring and miscellaneous part and frictional noise are reduced to minimum.
In order to realize above-mentioned purpose of the present invention, a kind of helical spring is provided, comprising: inner ring, it is by wire being twined multiturn and forming; The end circle, it is respectively formed at the two ends of inner ring; And the flex point part, it is a non-linear shape, and is formed on the outer circumferential surface of end circle, it is facing to inner ring.
In order to realize above-mentioned purpose of the present invention, a kind of reciprocal compressor with spring also is provided, comprising: shell; Frame, it is positioned at shell; Drive motor, it is fixedly joined to frame, and is used for producing linear back and forth driving force; Cylinder, it is fixed on the frame; Piston, it bears the driving force of drive motor, and in the to-and-fro motion of cylinder internal linear; Suction valve, it is used to control the gas that enters cylinder; Discharge valve assembly is discharged the gas that compresses by it in cylinder; And helical spring, its yielding support piston, and make the piston resonance motion, and wherein this helical spring comprises: inner ring, and it twines multiturn by wire and forms; The end circle, it is positioned at the two ends of inner ring; And the flex point part, it is a non-linear shape, and is formed on the outer circumferential surface of end circle, and its position is towards inner ring.
Description of drawings
Fig. 1,2 is respectively plan view and the planimetric map that an existing helical spring embodiment is shown;
Fig. 3 is the plan view that helical spring serviceability is shown;
Fig. 4, the 5th illustrates plan view and planimetric map according to a helical spring embodiment of the present invention;
Fig. 6 is that part illustrates the plan view according to helical spring different embodiments of the present invention;
Fig. 7 is the plan view that illustrates according to helical spring serviceability of the present invention;
Fig. 8 illustrates the sectional view that has according to an embodiment of helical spring reciprocal compressor of the present invention;
Fig. 9 illustrates the plan view according to reciprocal compressor of the present invention that part is amplified; And
Figure 10 illustrates the plan view that constitutes the helical spring serviceability of reciprocal compressor according to the present invention.
Embodiment
Now, will describe the preferred embodiments of the present invention in detail, accompanying drawing illustrates the example of preferred embodiment.
At first, illustrate according to a helical spring embodiment of the present invention.
Fig. 4 is the plan view that illustrates according to a helical spring embodiment of the present invention, and Fig. 5 illustrates this helical spring planimetric map.
As shown in the figure, helical spring comprises: inner ring 30, and it twines multiturn by wire and forms; End circle 40, it lays respectively at the two ends of inner ring 30; And flex point part 41, it has non-linear shape, and is formed on the outer circumferential surface of end circle 40, and the position is towards inner ring 30.
Wire is made of rigid material, and, twine multiturn by wire spirality ground and form inner ring 30 and end circle 40.The diameter wiry that forms inner ring 30 is identical, and the angle of pitch of inner ring is identical.Therefore, the interval rule between the inner ring 30, and also its external diameter is also identical.
The outer surface of end circle that lays respectively at the two ends of inner ring 30 is a supporting surface 42, and it contacts miscellaneous part, and supporting surface 42 is perpendicular to the plane of the axis of end circle 40, and the end 43 of end circle 40 almost contacts the inner ring 31 that closes on very much.That is, be bent to form the surface of the end circle 40 that faces toward with inner ring 30, and the another side of end circle 40 is planes.Interval between curved surface and the adjacent inner coil 31 increases gradually from the end 43 of end circle 40.
On the curved surface of two of the both sides that lay respectively at inner ring 30 end circles 40, form flex point part 41 respectively.The thickness of end circle 40 begins thickening gradually from its end.In the part of leaving the end specific range, thickness is identical, perhaps reduces.Thickness part identical or that reduce is called as flex point part 41.In addition, thickness begins thickening gradually from flex point part 41.
The end 43 of flex point part 41 and end circle 40 is specific range apart, and identical to the distance of each flex point part 41 from each end 43 of end circle 40.
Interval between the inner ring 30 can be irregular, and in addition, each diameter of inner ring 30 can be inequality.
As another embodiment of the present invention, as shown in Figure 6, form a plurality of flex point parts 41 at end circle 40.Position at the end specific range that leaves end circle 40 forms flex point part 41 respectively, and the position is minimum towards the height of the flex point part 41 of the end of end circle 40.
The following describes according to helical spring operation of the present invention.
At first, as shown in Figure 7, helical spring according to the present invention is installed between two parts.At this moment, the supporting surface 42 of end circle 40 is distinguished support unit contiguously.In this case, when the power that helical spring is applied such as impact, vibration etc., helical spring shrinks and discharges, to absorb the power such as impact, vibration etc.
In order to be described in more detail this process, with helical spring when vertically applying power, moment of flexure and torsional interaction are constituting on helical spring inner ring 30 and the end circle 40, thereby interval and inner ring 31 between the inner ring 30 are narrowed down with the interval that end encloses between 40.Since this resiliently deformable, the helical spring absorbability.At this moment,, the repulsion that is applied to the power on the helical spring is applied on the miscellaneous part by helical spring supporting surface 42, and because this repulsion, and it is applied torque.
But in the power that helical spring is applied made the process that narrows down of interval between each circle, flex point part 41 contacts that form on helical spring end circle 40 supported to the inner ring adjacent with this end circle 40, thereby cut off the transmission of torque to the supporting surface 42 of end circle 40.Therefore, the interval between each circle between the point of contact of the inner ring that contacts two flex point parts 41 is respectively narrowed down.
When the power that applies from the outside was removed, each circle that narrows down because of its elasticity recovered the home position at interval, outwards to send the power of absorption.
By repeating these processing procedures, helical spring absorbs the shock and vibration of transmitting from the outside, is passed to miscellaneous part to prevent it.In addition, with helical spring rotation, that is, the relative movement between helical spring supporting surface 42 and another parts is reduced to minimum, thereby prevents to produce friction and frictional noise.
Fig. 8 illustrates the sectional view that has according to one embodiment of the present of invention of helical spring reciprocal compressor of the present invention.
As shown in the figure, this reciprocal compressor comprises: shell 100, the inner space that has regulation in it; Rack unit 110, it is positioned at shell 100; Drive motor 120, it is fixedly joined to rack unit 110, and produces linear back and forth driving force; Cylinder 130, it is fixedly joined to rack unit 110; Piston 140, it is activated the driving force of motor 120, and to-and-fro motion in the inner space 131 of cylinder 130; Suction valve 150, it is used to control the gas that enters in the cylinder internal space 131; Discharge valve assembly 160 is discharged the gas of compression in cylinder 130 by it; And resonant spring, its yielding support piston 140, and make cylinder 140 resonance motions.
Shell 100 has the inner space of regulation, and suction pipe 101 and discharge tube 102 are connected respectively to shell 100.
Piston 140 is inserted in the cylinder 130, and magnetic receiver 125 connects a side of piston 140.In piston 141, form suction path 141, and the suction valve 150 that is used for opening/closing suction path 141 is installed in the end of piston 140.
Resonant spring comprises: front coil spring 170, and it is between forebay 111 and magnetic receiver 125; And rear coil springs 180, it is between rear bay 113 and magnetic receiver 125.Front coil spring 170 and rear coil springs 180 have same structure, and helical spring 170,180 yielding support pistons 140.
The front coil spring 170 and the rear coil springs 180 that constitute resonant spring have same structure with above-mentioned helical spring.As shown in Figure 9, front coil spring 170 and rear coil springs 180 comprise: circle 171,181, and it twines multiturn by the rigid metal silk and forms; And flex point part 172,182, it has non-linear shape, and each all forms on the outer circumferential surface of the circle that is positioned at two ends.Wire has special diameter, and is twined by spirality ground.The outer surface that lays respectively at each circle at two ends is perpendicular to the plane of the axis of this circle, and this plane is the supporting surface 173,183 of contact miscellaneous part.
Described identical to its more detailed description and preamble.
Two supporting surfaces 173 of front coil spring 170 support the side of forebay 111 and the internal surface of magnetic receiver 125 respectively contiguously.Two supporting surfaces 183 of rear coil springs 180 support the internal surface of rear bay 113 and the outer surface of magnetic receiver 125 respectively contiguously.
Below explanation had running according to helical spring reciprocal compressor of the present invention.
When reciprocal compressor is powered, utilize electromagnetic interaction, drive motor 120 produces linear back and forth driving force, and should the reciprocal driving force of linearity be delivered to piston 140 by the magnetic receiver 125 that is connected with magnet 123.
In cylinder 130, piston 140 linear reciprocating motions.Along with piston 140 linear reciprocating motions, freezing mixture is inhaled in the cylinder internal space 131 and compression within it, and Ya Suo freezing mixture is discharged to the outside in cylinder internal space 131 then.By discharge cap 161 and discharge tube 102, the freezing mixture of discharging is discharged to outside the compressor.
As shown in figure 10, repeat to shrink and relax at front coil spring 170 and rear coil springs 180, thereby make in the process of motion resonance of piston 140, the flex point part 172,182 that is separately positioned on front coil spring 170 and the rear coil springs 180 is reduced to minimum with the supporting surface 173,183 of front coil spring and rear coil springs with the relative movement of the surface of contact that contacts this supporting surface 173,183.Promptly, relative movement between the internal surface of side of the supporting surface 173 of front coil spring and the forebay 111 that contacts supporting surface 173 respectively and magnetic receiver 125 is reduced to minimum, but also the relative movement between the outer surface of the internal surface of the supporting surface 183 of rear coil springs and the rear bay 113 that contacts supporting surface 183 respectively and magnetic receiver 125 is reduced to minimum.
As mentioned above, by the relative movement between front coil spring 170 and rear coil springs 180 and the miscellaneous part is reduced to minimum, can avoids because of fricative wearing and tearing, but also can avoid producing frictional noise.If produce frictional noise between front coil spring 170 and rear coil springs 180 and the miscellaneous part, then, frictional noise is delivered to shell 100, with the outside of noise emission to shell 100 by miscellaneous part such as discharge tube 102 grades.
As mentioned above, be connected to miscellaneous part at helical spring according to the present invention, and shrink and discharge to absorb the impact of transmitting or when rotating from the outside, this helical spring is reduced to minimum with the relative movement of itself and miscellaneous part, with the wearing and tearing that prevent to cause, therefore, prolonged the life-span of helical spring and miscellaneous part because of friction with miscellaneous part, prevent to damage miscellaneous part and comprise helical spring, but also can avoid frictional loss.
In having this helical spring reciprocal compressor, can prevent the wearing and tearing that produce because of helical spring that causes the piston resonance motion and the friction that contacts between the miscellaneous part (forebay, magnetic receiver, rear bay) that is bearing on the helical spring, therefore, prolonged the life-span of helical spring and miscellaneous part, and prevented that it from damaging and producing noise because of friction.Therefore, can improve the reliability of compressor.
Can carry out various modifications and changes under the situation that does not break away from the spirit or scope of the present invention, this is conspicuous to those skilled in the art.Therefore, the invention is intended to contain the modifications and variations of the present invention that fall in claims and the equivalent limited range thereof.
Claims (14)
1. helical spring, it comprises:
Inner ring, it twines multiturn by wire and forms;
The end circle, it is positioned at the two ends of inner ring; And
The flex point part, it has non-linear shape, and is formed on the outer circumferential surface of end circle, and its position is towards inner ring.
2. helical spring as claimed in claim 1, wherein, this flex point part is formed on the outer circumferential surface of end circle by to have the convex shape of curve form.
3. helical spring as claimed in claim 1 wherein, is provided with one or more flex point part.
4. helical spring as claimed in claim 1, wherein, the angle between the inner ring of this end circle and adjacent end circle begins to increase from the end of end circle, and has fixedly increase scope.
5. helical spring as claimed in claim 1, wherein, between inner ring is regular at interval.
6. helical spring as claimed in claim 1, wherein, the angle of pitch between inner ring is identical.
7. helical spring as claimed in claim 1, wherein, between inner ring is irregular at interval.
8. helical spring as claimed in claim 1, wherein, the outer surface of this end circle is perpendicular to the plane of the axis of end circle.
9. helical spring as claimed in claim 1, wherein, the external diameter of this inner ring is identical.
10. helical spring as claimed in claim 1 is wherein, identical to the distance the flex point part that is respectively formed on the end circle from the end of end circle.
11. helical spring as claimed in claim 1, wherein said flex point partly has specified altitude.
12. a reciprocal compressor, it comprises:
Shell;
Rack unit, it is positioned at shell;
Drive motor, it is fixedly joined to rack unit, and produces reciprocal linearly drive motor;
Cylinder, it is fixed on the rack unit;
Piston, it receives the driving force of drive motor, and in the ground to-and-fro motion of cylinder internal linear;
Suction valve, it is used to control the gas that is introduced into cylinder;
Bleed valve assembly is discharged the gas that compresses by it in cylinder; And
Helical spring, its yielding support piston, and cause the resonance motion of piston,
Wherein this helical spring comprises: inner ring, and it twines multiturn by wire and forms; End circle, its each all be formed on the two ends of inner ring; And the flex point part, it has non-linear shape, and is formed on the outer circumferential surface of end circle, and towards inner ring.
13. compressor as claimed in claim 12, wherein, this flex point part is formed in the coil side that is positioned at facing to each end of the coil of adjacent turn.
14. compressor as claimed in claim 12, wherein, this flex point part is formed with the convex shape with curve form.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020030015224 | 2003-03-11 | ||
| KR20030015224A KR100531898B1 (en) | 2003-03-11 | 2003-03-11 | Compression coil spring and reciprocating compressor with this |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1759261A CN1759261A (en) | 2006-04-12 |
| CN100394066C true CN100394066C (en) | 2008-06-11 |
Family
ID=36091713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004800066249A Expired - Fee Related CN100394066C (en) | 2003-03-11 | 2004-03-11 | Coil spring and reciprocating compressor having the same |
Country Status (5)
| Country | Link |
|---|---|
| KR (1) | KR100531898B1 (en) |
| CN (1) | CN100394066C (en) |
| BR (1) | BRPI0408272B1 (en) |
| DE (1) | DE112004000419T5 (en) |
| WO (1) | WO2004081406A2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BRPI1101247A2 (en) * | 2011-03-18 | 2013-05-14 | Whirlpool Sa | suspension spring for a refrigeration compressor |
| BRPI1104172A2 (en) * | 2011-08-31 | 2015-10-13 | Whirlpool Sa | linear compressor based on resonant oscillating mechanism |
| KR101495188B1 (en) * | 2012-10-17 | 2015-02-24 | 엘지전자 주식회사 | Reciprocating compressor |
| JP6367256B2 (en) * | 2016-04-13 | 2018-08-01 | サンコール株式会社 | Coil spring |
| CN113357308B (en) * | 2021-07-14 | 2022-08-16 | 吉林大学 | High-efficient low frequency vibration isolation device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1862992A (en) * | 1929-06-14 | 1932-06-14 | Gen Motors Corp | Coil spring |
| JPS4840027A (en) * | 1971-09-24 | 1973-06-12 | ||
| US4416594A (en) * | 1979-08-17 | 1983-11-22 | Sawafuji Electric Company, Ltd. | Horizontal type vibrating compressor |
| SU1504408A1 (en) * | 1987-06-29 | 1989-08-30 | Предприятие П/Я А-7408 | Cylindrical coiled compression spring |
| DE4014644A1 (en) * | 1990-05-08 | 1991-11-14 | Schwemmer Erich | Versatile play swing with fixed base - has spiral spring supporting upper seat with rotary and rocking movements |
| CN2260193Y (en) * | 1996-09-09 | 1997-08-20 | 胜大弹簧股份有限公司 | Level type end structure of spring ring |
-
2003
- 2003-03-11 KR KR20030015224A patent/KR100531898B1/en active IP Right Grant
-
2004
- 2004-03-11 CN CNB2004800066249A patent/CN100394066C/en not_active Expired - Fee Related
- 2004-03-11 WO PCT/KR2004/000509 patent/WO2004081406A2/en active Search and Examination
- 2004-03-11 BR BRPI0408272A patent/BRPI0408272B1/en not_active IP Right Cessation
- 2004-03-11 DE DE112004000419T patent/DE112004000419T5/en not_active Ceased
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1862992A (en) * | 1929-06-14 | 1932-06-14 | Gen Motors Corp | Coil spring |
| JPS4840027A (en) * | 1971-09-24 | 1973-06-12 | ||
| US4416594A (en) * | 1979-08-17 | 1983-11-22 | Sawafuji Electric Company, Ltd. | Horizontal type vibrating compressor |
| SU1504408A1 (en) * | 1987-06-29 | 1989-08-30 | Предприятие П/Я А-7408 | Cylindrical coiled compression spring |
| DE4014644A1 (en) * | 1990-05-08 | 1991-11-14 | Schwemmer Erich | Versatile play swing with fixed base - has spiral spring supporting upper seat with rotary and rocking movements |
| CN2260193Y (en) * | 1996-09-09 | 1997-08-20 | 胜大弹簧股份有限公司 | Level type end structure of spring ring |
Non-Patent Citations (4)
| Title |
|---|
| 压缩螺旋弹簧的断裂分析. 于志伟，季士军，史雅琴，孙俊才，张晓.大连海事大学学报，第25卷第2期. 1999 |
| 压缩螺旋弹簧的断裂分析. 于志伟，季士军，史雅琴，孙俊才，张晓.大连海事大学学报，第25卷第2期. 1999 * |
| 高应力弹簧端圈疲劳断裂机理研究. 李克非，李忆莲，李娟.理化检验-物理分册，第31卷第2期. 1995 |
| 高应力弹簧端圈疲劳断裂机理研究. 李克非，李忆莲，李娟.理化检验-物理分册，第31卷第2期. 1995 * |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100531898B1 (en) | 2005-11-29 |
| WO2004081406A2 (en) | 2004-09-23 |
| BRPI0408272A (en) | 2006-03-07 |
| BRPI0408272B1 (en) | 2017-05-30 |
| KR20040080462A (en) | 2004-09-20 |
| CN1759261A (en) | 2006-04-12 |
| DE112004000419T5 (en) | 2006-02-02 |
| WO2004081406A3 (en) | 2005-03-31 |
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