CN100400885C - Turbine compressor - Google Patents
Turbine compressor Download PDFInfo
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- CN100400885C CN100400885C CNB021605726A CN02160572A CN100400885C CN 100400885 C CN100400885 C CN 100400885C CN B021605726 A CNB021605726 A CN B021605726A CN 02160572 A CN02160572 A CN 02160572A CN 100400885 C CN100400885 C CN 100400885C
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- live axle
- turbine
- equilibrium block
- shell
- space
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Abstract
The present invention discloses a turbine compressor. The turbine compressor (1) comprises a casing (10), a motor (31), a drive shaft (32) and a compressing mechanism (20), wherein the motor (31) is arranged in the casing (10); the drive shaft (32) is connected to the motor (31); the compressing mechanism (20) is composed of a movable turbine (22) driven by the drive shaft (32) and a fixed turbine (21) engaged with the movable turbine (22); a balance block (74) which is eccentric from a shaft body (72) and is protruded on the radical direction of the shaft body (72) is formed on a part of the drive shaft (32); a concave part (70) is formed at one opposite side of the protruded side of the drive shaft (32) with the balance block (74).
Description
Technical field
The present invention relates to have on a kind of live axle wherein the turbocompressor of an equilibrium block.
Background technique
We know a kind of like this compressor, for example a day disclosure communique spy drives the compressor of putting down in writing in the flat 05-071301 communique, and it comprises: shell, be located at drive motor in the shell, be connected in live axle on this drive motor, be contained in the turbocompressor structure on this live axle.In this turbocompressor, the deviation of gravity center of compressing mechanism the axle center of live axle, for overcoming this shortcoming, allowing the running reaches balance, on the live axle of being everlasting, add an equilibrium block.
Fig. 9 shows used live axle 100 on the existing turbocompressor.This live axle 100 is made of axle main body 101, the assembly department 102 and the equilibrium block 103 that are formed on a main body 101 front ends and are adorning the moving element of compressing mechanism.The inside of live axle 100 has formed the oil supply hole 105 that is extending vertically.As shown in figure 10, the deviation of gravity center of equilibrium block 103 axle main body 101 the axle center, along the axle main body 101 radially giving prominence to.
The moving element of described live axle 100, drive motor and compressing mechanism constitutes the solid of rotation of one rotation.Up to the present, for guaranteeing the stability of solid of rotation, take the way of doing equilibrium block 103 bigger.The result is weight increase and the maximization that has caused compressor owing to the existence of this equilibrium block 103.But, in recent years, the miniaturization of compressor is required to grow to even greater heights, look forward to an equilibrium block 103 miniaturizations forwardly.Yet, if only make equilibrium block 103 miniaturizations, but do not think other way, be to cause solid of rotation unsettled.
Summary of the invention
Purpose of the present invention is: with the equilibrium block miniaturization, further say under the situation of the stability that does not reduce solid of rotation, make compressor light and little.
First technological scheme of the present invention is such, a kind of turbocompressor, it comprises: shell, be contained in motor in the shell, be connected in live axle on the motor, by the compressing mechanism that the movable turbine of this drive shaft and the fixed turbine that is meshed with movable turbine constitute, on the part of live axle, formed eccentric and give prominence to the equilibrium block that makes progress in the footpath of this main body from the axle main body.The side that side of giving prominence to described equilibrium block on described live axle is opposite has formed recess.
According to above-mentioned first technological scheme, a side opposite with outstanding that side of equilibrium block on live axle has formed recess, so the center of gravity of the solid of rotation that is made of motor, live axle and compressing mechanism just moves to equilibrium block.Therefore, can under the situation of the stability that does not reduce solid of rotation, (promptly not change position of centre of gravity), do equilibrium block littler than existing.The result is, compressor not only gently but also little.
Second technological scheme of the present invention is such, and on the basis of above-mentioned first technological scheme, the sectional shape of described equilibrium block forms semicircle shape; The sectional shape of described recess forms flat.
According to described second technological scheme, can obtain suitable equilibrium block and recess.
The 3rd technological scheme of the present invention is such, on the basis of above-mentioned first technological scheme, in the inside of described live axle, is formed with the axially extended oil supply hole along this live axle; Described oil supply hole deflection and the outstanding opposite side of that side of described equilibrium block.
According to above-mentioned the 3rd technological scheme, because of oil supply hole has been partial to and the outstanding opposite side of that side of equilibrium block, so the center of gravity of solid of rotation is just to equilibrium block one side shifting.The result is to make equilibrium block smaller.
The 4th technological scheme of the present invention is such, and on the basis of above-mentioned first technological scheme, described live axle is made of cast member.
According to above-mentioned the 4th technological scheme, be easy to make equilibrium block and recess to become one, and can cut down finished cost.
The 5th technological scheme of the present invention is such, on the basis of above-mentioned first technological scheme, is formed with low-voltage space and high-pressure space across described compressing mechanism in the described shell; Described motor is disposed in the described high-pressure space.
According to above-mentioned the 5th technological scheme, being divided into low-voltage space and high-pressure space in shell is in the so-called high low pressure confined chamber type compressor, can receive above-mentioned effect.
Description of drawings
Fig. 1 is the structure sectional view of the related turbocompressor of embodiment.
Fig. 2 is the plan view of fixed turbine.
Fig. 3 is the cover in the compressing mechanism and the plan view of movable turbine.
Fig. 4 is the plan view of compressing mechanism.
Fig. 5 is the side view of live axle.
Fig. 6 is the sectional drawing after cutting open along the VI-VI line among Fig. 5.
Fig. 7 is the side view of the related live axle of variation.
Fig. 8 is the sectional drawing after cutting open along the VIII-VIII line among Fig. 7.
Fig. 9 is the side view of the live axle in the existing turbocompressor.
Figure 10 is the sectional drawing after cutting open along the X-X line among Fig. 9.
Embodiment
Below, with reference to the accompanying drawings, describe the related turbocompressor of embodiments of the invention in detail.Fig. 1 is the structure sectional view of this turbocompressor 1.
This turbocompressor 1 is for example carried out the compression stroke of steam compression type freeze cycle in the refrigerant circuit of aircondition.As shown in Figure 1, compressing mechanism 20 and the driving mechanism 30 in order to drive this compressing mechanism 20 are housed in the shell 10 of this turbocompressor 1.Shell 10 is made up of lengthwise cylinder shell 11, the upper end plate 12 that is bonded on housing 11 upper end portions, the lower end plate 13 that is bonded on housing 11 underparts.Upper end plate 12 and lower end plate 13 are welded on respectively on the housing 11, and shell 10 is in air-tight state.
Described compressing mechanism 20 comprises: fixed turbine 21 and movable turbine 22, cover 23 are promptly in order to be fixed to this compressing mechanism 20 parts on the shell 10.Cover 23 is fixed on the upper end portion of housing 11.The position of driving mechanism 30 and is made of the motor 31 that is fixed on the shell 10 below compressing mechanism 20.One live axle 32 is arranged in this motor 31, and this live axle 32 is connected in again on the movable turbine 22 of compressing mechanism 20.Need mention the details aftermentioned of live axle 32.
Be pressed into above-mentioned cover 23 in the housing 11 and housing 11 joins to together with airtight conditions.The inside of shell 10 is divided into this first space S 1 of overlapping 23 tops and this overlaps second space S 2 of 23 belows, and this cover 23 constitutes isolating part.
The top of cover 23 adorned described fixed turbine 21.That is to say that fixed turbine 21 cover 23 relatively is positioned at those sides by first space S 1, cover 23 comprises the turbine recess of being made up of the first depressed part 24a and the second depressed part 24b 24, by overlapping 23 movable turbine 22 is positioned in this turbine recess 24.The first depressed part 24a is formed on a top side of cover 23, and the diameter of the second depressed part 24b is littler than the first depressed part 24a's, and it is formed on the bottom surface of this first depressed part 24a.
A following side of described cover 23 has bearing portion 25, and it is supporting live axle 32 by sliding bearing 25a and this live axle 32 can rotate.Be formed with its diameter bearing hole 25b also littler than the second depressed part 24b in this bearing portion 25, this bearing hole 25b and the second depressed part 24b are communicated with.
Described fixed turbine 21 comprises end plate 21a and vortex shape overlap joint 21b.Described fixed turbine 21 is fixed on the described cover 23 with vortex shape overlap joint 21b posture down.Movable turbine 22 comprises in the first depressed part 24a that is located at cover 23 and movable end plate 22a, with the vortex shape overlap joint 22b of the vortex shape overlap joint 21b engagement of fixed turbine 21.Formed with end plate 22a below the end plate 22a of movable turbine 22 and formed as one, passed through sliding bearing 22c and described live axle 32 connected wheel hub 22d.This wheel hub 22d is positioned at the described second depressed part 24b.
The part that connects with wheel hub 22d of described live axle 32 constitutes eccentric part 32a.Movable turbine 22 is connected on the cover 23 by the Oldham's coupling 26 that is located on the first depressed part 24a, and must not rotation.
Be provided with in the second depressed part 24b and be positioned at wheel hub 22d annular seal ring 27 on every side.The inner peripheral surface of the sealing ring 27 and the second depressed part 24b is combined closely, simultaneously also by force application mechanism not shown in the figures be crimped on movable turbine 22 end plate 22a below.The first depressed part 24a and the second depressed part 24b are separated by sealing ring 27, and described turbine recess 24 is divided into the low voltage section L in seal ring 27 outsides and the high-voltage section H of seal ring 27 inboards.
Fig. 2 is the plan view of fixed turbine 21.The outer periphery portion of the end plate 21a of described fixed turbine 21 extends towards the below of Fig. 1, and its lower end is formed with radially outstanding flange 21c outwardly.The external diameter of this flange 21c forms also forr a short time than the internal diameter of cover 23 the first depressed part 24a, simultaneously, radially outstanding fastening sheet 21d is arranged outwardly in many places.Fixed turbine 21 is fixed on the cover 23 by this fastening sheet 21d.
As be the shown in Figure 3 of plan view, have on the cover 23 from the radially outstanding inwardly acceptance division 23c of the inner peripheral surface of the first depressed part 24a.On the fastening sheet 21d of fixed turbine 21, be formed with the through hole H1 that allows bolt pass; On the acceptance division 23c of cover 23, be formed with the screw H2 that tightens this bolt.So, as shown in Figure 4, in the time of on fixed turbine 21 being fixed to cover 23 with bolt, just between cover 23 and fixed turbine 21, forming opening portion A, first space S 1 of overlapping 23 tops is just and the low voltage section L of turbine recess 24 connection.
Under said structure, the top of the end plate 22a of the following and movable turbine 22 of the flange 21c of fixed turbine 21 is the slip surface of slide relative, and the gap between the contact segment of vortex shape overlap joint 21b, the 22b of two turbines 21,22 forms vortex shape pressing chamber C.The volume of this pressing chamber C is accompanied by the revolution of movable turbine 22 and periodically changes, and repeats this a series of actions of suction, compression and ejection of refrigeration agent thus.
Then the refrigeration agent in the refrigerant circuit is directed to the suction pipe 14 of compressing mechanism 20 on the described shell 10, in order to the refrigeration agents in the shell 10 are sprayed onto the outer spraying pipe 15 of shell 10.Suction pipe 14 is fixed on the upper end plate 12, is communicated with first space S 1 of cover 23 tops; Spraying pipe 15 is fixed on the housing 11, is communicated with second space S 2 of cover 23 belows.
In the described compressing mechanism 20, have: be formed on the fixed turbine 21 and the suction port Pi (Fig. 2, Fig. 4) that allows the outer circumference end of pressing chamber C communicate with first space S 1; Ejiction opening Po, the 28a, the 28b that communicate with second space S 2 by fixed turbine 21 and isolating part from the interior Zhou Duan of pressing chamber C.Ejiction opening Po, 28a, 28b are formed on the top of fixed turbine 21 and ejection by the ejection opening Po on the end plate 21a that is formed on fixed turbine 21 and covers ejection recess 28a between 28 (the omitting among Fig. 2, Fig. 4) and reach from this ejection recess 28a by fixed turbine 21 and overlap 23 mouthfuls of access 28b that open towards second space S 2 and form.
Under said structure, refrigeration agent is drawn onto the pressing chamber C from suction port Pi owing to the revolution of movable turbine 22.The volume of this pressing chamber C diminishes, and refrigeration agent is compressed, and flows into second space S 2 by ejiction opening Po, 28a, 28b.Therefore, in the present embodiment, first space S 1 in the shell 10 becomes the low-voltage space that is full of by low pressure refrigerant; Second space S 2 in the shell 10 becomes the high-pressure space that is full of by high-pressure refrigerant.
Adorned a gas guide plate 41 below described cover 23, it will guide the below into along the inner peripheral surface of shell 101 from ejiction opening Po, 28a, 28b effluent air refrigeration agent.Return this cover 23 and adorned a spill port 42, when having stored lubricant oil among the second depressed part 24b, it guides this lubricant oil into below along the inner peripheral surface of shell 10.
Described motor 31 is arranged in second space S 2 into high-pressure space.This motor 31 comprises ring-type stator 33 on the inner peripheral surface that is fixed on shell 10, is arranged in the rotor 34 of these stator 33 inboards.Many places are formed with the magnetic core excision 33a of portion on the outer circumferential face of described stator 33.This magnetic core excision 33a of portion is formed on the part of outer circumferential face of this stator 33, and is continuous along the vertical direction breach, and its effect is to allow the space of motor 31 tops and the spatial communication of below.Make the upper end portion of the underpart of described gas guide plate 41 and stator 33 overlapping, so described gas guide plate 41 is inserted in the magnetic core excision 33a of portion, return tube 42 passes the bottom that the magnetic core excision 33a of portion has been inserted into shell 10.
Described live axle 32 is fixed on the rotor 34, and the upper end portion of this live axle 32 is connected on the movable turbine 22; The underpart of this live axle 32 is being supported by the shaft bearing plate 35 that is fixed on shell 10 bottoms by sliding bearing 35a.The bottom of shell 10 is provided with centrifugal pump 36 for storing store oil place of lubricant oil in the underpart of live axle 32.Be formed with from centrifugal pump 36 towards the top oil supply hole 71 (referring to Fig. 5 and Fig. 6) that extends on the live axle 32, it will draw up the lubricant oil that comes by centrifugal pump 36, and be fed to the slip surface of slide part, two turbines 21,22 of each sliding bearing 22c, 25a, 35a by this oil supply hole 71 first-class.
Below, the concrete structure of live axle 32 is described.
As shown in Figure 5, live axle 32 comprises: axle main body 72, assembly department 73 and equilibrium block 74.Assembly department 73 is the part that movable turbine 22 has been installed, and is formed on the upper end portion of a main body 72.
Form a recess 70 in a side opposite with outstanding that side of equilibrium block 74.As shown in Figure 6, the section of recess 70 forms flat pattern, and the sectional area of recess 70 is less than the sectional area of axle main body 72.Formed equilibrium block 74 and recess 70 form the shape of passing through the imagining center line L symmetry at axle center respectively relatively.Oil supply hole 71 is located on the central position of a main body 72.
Below, the working order of this turbocompressor 1 is described.
At first, motor 31 1 startings, rotor 34 and live axle 32 rotate with regard to relative stator 33 one.So, movable turbine 22 is with regard to the effect that is subjected to Oldham's coupling 26 and can not rotation, so movable turbine 22 just only revolves round the sun on the offset with the eccentric part 32a of live axle 32 is the revolving grate of turning radius.So, the volume of pressing chamber C just repeatedly periodically increases and decreases.
When the volume of pressing chamber C increased, the low pressure refrigerant in the refrigerant circuit just was drawn onto the pressing chamber C via suction pipe 14 and first space S 1 from suction port Pi.If the volume of pressing chamber C begins to reduce, refrigeration agent becomes high pressure with regard to beginning to be compressed, and sprays to second space S 2 from ejiction opening Po, 28a, 28b.Refrigeration agent be drawn towards earlier under the effect of gas guide plate 41 motor 31 below, rise once more afterwards, and outside spraying pipe 15 sprays to shell 10.
In this embodiment's turbocompressor 1, because of recess 70 is formed on the live axle 32 that side opposite with equilibrium block 74, when so recess 70 is arranged, the center of gravity of the solid of rotation that constitutes by live axle 32, movable turbine 22 and rotor 34, when not forming recess 70 to equilibrium block 74 1 side shiftings.Even, also can keep the stability of solid of rotation so equilibrium block 74 is littler than existing.The result is by making equilibrium block 74 smaller, also just can make turbocompressor 1 little and light.
When making equilibrium block 74 smaller, or make the section area of equilibrium block 74 smaller, or make equilibrium block 74 thin thickness some, these ways all are fine.Can wait according to kind, the behaviour in service of compressor suitably determine equilibrium block 74 to be done on earth have how little.As shown in Figure 1, equilibrium block 74 be arranged on the cover 23 and rotor 34 between the gap in.The result is, if take to make the way of the thickness attenuation of equilibrium block 74, the interval of 34 in cover 23, rotor narrowed down, and says further, can make the height reduction of turbocompressor 1.
Because of live axle 32 is made of cast member, axle main body 72, equilibrium block 74 etc. form as one, so can cut down finished cost.In other words, can make live axle 32 at an easy rate.
Fig. 7 and Fig. 8 show the variation of live axle 32.In this live axle 32, oil supply hole 71 is partial to the opposite side of that side of giving prominence to equilibrium block 74.In other words, oil supply hole 71 is positioned at that side near recess 70 from axle main body 72 centers.According to this variation, because of oil supply hole 71 to a lateral deviation opposite, so the center of gravity of solid of rotation is just to equilibrium block 74 1 side shiftings with outstanding that side of equilibrium block 74.The result is to make equilibrium block 74 smaller.
Need mention, because of in this embodiment's turbocompressor 1, motor 31 is arranged in second space S 2 into high-pressure space, so because heat that motor losses, mechanical loss produced can not add to suction gas, also just can prevent owing to suck the decline of the volumetric efficiency that gas density decline causes.The vortex shape that the result does not just need it to be made each turbine 21,22 has overlapped the bigger structure of 21b, 22b, thereby can prevent that cost from rising, maximizing.
Because under this structure, allow the refrigeration agent that flows to second space S 2 around motor 31, flow earlier, be sprayed onto again outside the shell 10, so both available refrigerants cooling motors 31 can be separated lubricant oil again, and allow it get back to store oil place at this moment from refrigeration agent.
In the present embodiment, the on-stream lubricant oil that feeds to sliding bearing 22c, 25a is stored in the high-voltage section H of turbine recess 24, further spill and enter under the situation of low voltage section L then from the micro-gap of 27 of movable turbine 22 and seal rings, lubricant oil in this low voltage section L can because the revolution of movable turbine 22, be accompanied by this revolution Oldham's coupling 26 action and come up by bullet, and then be discharged to first space S 1 from opening portion A.After the lubricant oil that is discharged to first space S 1 atomizes in this first space S 1, be drawn onto in the pressing chamber C from suction port Pi again and refrigeration agent is discharged in second space S 2 together.
Relative therewith, as existing high-pressure sealed cell structure, around fixed turbine 21 is under the situation of high-pressure space structure, there is pressure difference because of between the low-pressure section in that high-pressure space and compressing mechanism 20, so shown in the imaginary line among Fig. 4, must allow described isolating part 23 and fixed turbine 21 on the whole week of flange 21c, be adjacent to, so, exactly under the state that the lubricant oil of being stored has nowhere to run, this lubricant oil is stirred by Oldham's coupling 26 in the limit, and the limit is by movable turbine 22 revolution.Therefore, under high-pressure sealed cell structure, churn loss can increase owing to the opposing of oil, and running efficiency is descended.Yet, in the present embodiment, because of allowing first space S 1 around the fixed turbine 21 be low-voltage space, and and the low voltage section L of turbine recess 24 be communicated with, prevent running efficiency decline so can be discharged to first space S, 1 this way by lubricant oil with turbine recess 24.
Sealing configuration also because of no longer needing to allow isolating part and fixed turbine 21 be adjacent to, thus with the structure that needs hermetic unit mutually this, can make the structure of compressing mechanism 20 simpler.The diameter of compressing mechanism 20 can be made therefrom smaller, thereby can make compressor 1 self miniaturization.
Because of under high-pressure sealed cell structure, suction pipe 14 directly is connected on the fixed turbine 21, made structure complicated so need sealed member therebetween, but under said structure, can make designs simplification because of not needing the sealing parts.
Under high-pressure sealed cell structure, fixed turbine 21 might deform owing to the pressure difference between the low pressure of high-pressure that acts on fixed turbine 21 outsides and pressing chamber outer circumferential side, and the slit appears 21,22 of two turbines, and spill refrigeration agent, cause decrease in efficiency etc.And, if control the intensity that this distortion removes to improve fixed turbine 21, can cause mechanism to maximize again.But under said structure, can prevent such problem.
Need mention, shape, the size of the recess 70 on the live axle 32 are not limited to described embodiment, also various deformation can be arranged.And, to the restriction that also has nothing special of the shape of equilibrium block 74 or size.
In addition, in the above-described embodiments, do the external diameter of the flange 21c of fixed turbine 21 littler, also established outstanding fastening sheet 21d simultaneously outwardly than the internal diameter of the first depressed part 24a of cover 23, so that form opening portion A, also can suitably change the shape of opening portion at cover 23 and 21 of fixed turbines.For example, at fixed turbine 21 or overlap and form breach, through hole or the groove etc. that are communicated with the first depressed part 24a and first space S 1 on 23 the part, with these breach, through hole or groove etc. as opening portion A.
The present invention is not limited to described embodiment, also can implement the present invention in other multiple mode under the situation of the spirit that does not break away from this invention, major character.
As mentioned above, no matter from which aspect, described embodiment is some examples only, and it should be understood as is limitation of the invention.Scope of the present invention is embodied by claim, is not subjected to the constraint of specification this paper.And, belong to distortion in the equivalency range of claim, change etc. all within the scope of the invention.
Claims (5)
1. turbocompressor, it comprises: the compressing mechanism (20) that shell (10), the movable turbine (22) that is contained in motor (31) in the shell (10), is connected in live axle (32) on the motor (31), driven by this live axle (32) and the fixed turbine (21) that is meshed with movable turbine (22) constitute, on the part of live axle (32), formed eccentricly and give prominence to the equilibrium block (74) that makes progress in the footpath of this main body (72), it is characterized in that from axle main body (72):
Go up the opposite side of that side of giving prominence at described live axle (32) and formed recess (70) with described equilibrium block (74).
2. turbocompressor according to claim 1 is characterized in that:
The section shape of the transverse section of described equilibrium block (74) forms semicircle shape;
The section shape of the transverse section of described recess (70) forms flat.
3. turbocompressor according to claim 1 is characterized in that:
Inside in described live axle (32) is formed with the axially extended oil supply hole (71) along this live axle (32);
Described oil supply hole (71) deflection and the outstanding opposite side of that side of described equilibrium block (74).
4. turbocompressor according to claim 1 is characterized in that:
Described live axle (32) is made of cast member.
5. turbocompressor according to claim 1 is characterized in that:
Be formed with low-voltage space (S1) and high-pressure space (S2) across described compressing mechanism (20) in the described shell (10);
Described motor (31) is disposed in the described high-pressure space (S2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021605726A CN100400885C (en) | 2002-12-30 | 2002-12-30 | Turbine compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021605726A CN100400885C (en) | 2002-12-30 | 2002-12-30 | Turbine compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1512068A CN1512068A (en) | 2004-07-14 |
| CN100400885C true CN100400885C (en) | 2008-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021605726A Expired - Fee Related CN100400885C (en) | 2002-12-30 | 2002-12-30 | Turbine compressor |
Country Status (1)
| Country | Link |
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| CN (1) | CN100400885C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673492B (en) * | 2013-03-14 | 2018-01-12 | 安徽美芝精密制造有限公司 | Rotary compressor |
| CN104121191A (en) * | 2013-10-25 | 2014-10-29 | 柳州易舟汽车空调有限公司 | Electric scroll compressor |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4838773A (en) * | 1986-01-10 | 1989-06-13 | Sanyo Electric Co., Ltd. | Scroll compressor with balance weight movably attached to swing link |
| US4867657A (en) * | 1988-06-29 | 1989-09-19 | American Standard Inc. | Scroll compressor with axially balanced shaft |
| JPH08177761A (en) * | 1994-12-26 | 1996-07-12 | Sanyo Electric Co Ltd | Scroll compressor |
| JPH1150986A (en) * | 1997-06-02 | 1999-02-23 | Zexel Corp | Horizontal type scroll compressor |
| JP2000179475A (en) * | 1998-12-14 | 2000-06-27 | Sanden Corp | Scroll type compressor |
| JP2001342978A (en) * | 2000-06-01 | 2001-12-14 | Kimie Nakamura | Drive shaft of scroll fluid machine |
| JP2002005047A (en) * | 2000-06-20 | 2002-01-09 | Fujitsu General Ltd | Scroll compressor |
-
2002
- 2002-12-30 CN CNB021605726A patent/CN100400885C/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4838773A (en) * | 1986-01-10 | 1989-06-13 | Sanyo Electric Co., Ltd. | Scroll compressor with balance weight movably attached to swing link |
| US4867657A (en) * | 1988-06-29 | 1989-09-19 | American Standard Inc. | Scroll compressor with axially balanced shaft |
| JPH08177761A (en) * | 1994-12-26 | 1996-07-12 | Sanyo Electric Co Ltd | Scroll compressor |
| JPH1150986A (en) * | 1997-06-02 | 1999-02-23 | Zexel Corp | Horizontal type scroll compressor |
| JP2000179475A (en) * | 1998-12-14 | 2000-06-27 | Sanden Corp | Scroll type compressor |
| JP2001342978A (en) * | 2000-06-01 | 2001-12-14 | Kimie Nakamura | Drive shaft of scroll fluid machine |
| JP2002005047A (en) * | 2000-06-20 | 2002-01-09 | Fujitsu General Ltd | Scroll compressor |
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| CN1512068A (en) | 2004-07-14 |
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