CN201687712U - Screw compressor rotor with diameter of female rotor equal to nominal diameter - Google Patents

Screw compressor rotor with diameter of female rotor equal to nominal diameter Download PDF

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Publication number
CN201687712U
CN201687712U CN2010202224324U CN201020222432U CN201687712U CN 201687712 U CN201687712 U CN 201687712U CN 2010202224324 U CN2010202224324 U CN 2010202224324U CN 201020222432 U CN201020222432 U CN 201020222432U CN 201687712 U CN201687712 U CN 201687712U
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CN
China
Prior art keywords
rotor
diameter
female
male
nominal diameter
Prior art date
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Expired - Fee Related
Application number
CN2010202224324U
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Chinese (zh)
Inventor
余金龙
余凯
周国珍
常博
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WUHAN KAILONG TECHNOLOGY DEVELOPMENT Co Ltd
Original Assignee
WUHAN KAILONG TECHNOLOGY DEVELOPMENT Co Ltd
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Priority to CN2010202224324U priority Critical patent/CN201687712U/en
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Publication of CN201687712U publication Critical patent/CN201687712U/en
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Abstract

The utility model discloses a screw compressor rotor with the diameter of a female rotor equal to the nominal diameter, comprising a male rotor (1) and the female rotor (2). The screw compressor rotor is characterized in that the teeth profiles of the male rotor (1) and the female rotor (2) are in bilateral asymmetry, composition curves of the teeth profiles are an arc, an ellipse and envelope lines thereof, and the teeth ratio of the male rotor and the female rotor is 7:5. When the nominal diameter of the rotor is D0, the diameter D1 of the male rotor (1) is equal to D0+(0.04-0.05)D0, the diameter D2 of the female rotor (2) is equal to D0, and the center distance A of the male rotor and the female rotor is equal to (0.82-40.83)D0. The screw compressor rotor has the advantages of easy processing, smooth meshing surface, good sealing performance, small diameter difference of the male rotor and the female rotor, capability of driving rotors in an exchanging manner, little vibration and low noise, thereby reducing the axial force of the male rotor (1), prolonging the service life of a bearing and enhancing the air displacement and the efficiency of the screw compressor rotor.

Description

The female rotor diameter equals the screw type compressor rotor of nominal diameter
Technical field
The utility model relates to a kind of rotor, relates in particular to the screw type compressor rotor that the female rotor diameter equals nominal diameter.
Background technique
Screw compressor has a pair of intermeshing helical rotors by a stable drive ratio counterrotating, level and parallel configuration are in internal body, and the rotor with double wedge is a male rotor, is generally the driving rotor, rotor with recessed tooth is called female rotor, is generally driven rotor.Screw compressor belongs to positive displacement compressor, and it utilizes a pair of intermeshing negative and positive rotor to do rotation motion in body, and that the volume between every pair of teeth groove of periodic variation rotor is finished is air-breathing, compression, exhaust process.
The dimension series of the nominal diameter D0 of screw type compressor rotor is 100,125,160,200,250,315,400,500,630mm etc., and the size of rotor nominal diameter D0 is big more, and air displacement and power are big more.
Screw type compressor rotor in making the rotation motion process owing to the effect of suction and discharge pressure difference and profile gas force is subjected to axial force, for this axial force of balance, make the compressor drum running steadily reliable, the exhaust end at compressor drum is provided with axial thrust bearing usually.Because the face area of male rotor profile of tooth is more a lot of greatly than the face area of female rotor profile of tooth, the axial force that male rotor is subjected to is just big a lot, and its steady reliability that turns round is than female rotor difference.
The performance of the profile of tooth decision screw compressor of screw type compressor rotor.The profile of tooth of screw type compressor rotor is formed curve at present circular arc, cycloid and ellipse and envelope thereof etc., but the gear ratio of negative and positive rotor was generally 6: 5, the diameter difference of negative and positive rotor is bigger, the female rotor diameter is less, diameter D1=(1+0.05) D0 of common male rotor 1, diameter D2=(0.85～0.87) D0 of female rotor 2, be significantly smaller than 17%～19% of male rotor 1 diameter D1, be not suitable for the female rotor drive male rotor, and it is, limited to the raising of screw compressor air displacement because of rotating ratio is 1.2 times; There are the cusp corner angle in the profile of tooth of the screw type compressor rotor of being made up of circular arc, cycloid and envelope thereof, is unfavorable for processing and detects, and noise is bigger.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art and proposes to be easy to processing, Surface of action is smooth, good airproof performance, the diameter difference of negative and positive rotor is little, and interchangeable driving rotor vibrates little, noise is low, reduce the axial force of male rotor 1, improve the working life of bearing, the air displacement of raising screw compressor and the female rotor diameter of efficient equal the screw type compressor rotor of nominal diameter.
The purpose of this utility model can reach by following measure: referring to accompanying drawing, the female rotor diameter equals the screw type compressor rotor of nominal diameter, it comprises male rotor 1 and female rotor 2, the profile of tooth that it is characterized in that male rotor 1 and female rotor 2 is bilateral asymmetric, the composition curve of profile of tooth is circular arc and ellipse and envelope thereof, the gear ratio of negative and positive rotor is 7: 5, when the rotor nominal diameter is D0, diameter D1=D0+ (0.04～0.05) D0 of male rotor 1, the diameter D2=D0 of female rotor 2, the negative and positive centre of rotor is apart from A=(0.82～0.83) D0.
The utility model is compared with prior art can produce following good effect:
1. the profile of tooth of rotor composition curve is circular arc and ellipse and envelope thereof, and Line of contact is short, and leakage triangle is little, and engagement is steady, good airproof performance, efficient height;
2. respectively form smooth connection between tooth curve, do not have cusp on the molded lines, be convenient to processing and detection, cleanliness is good, and noise is low;
3. the pitch circle place becomes point gearing, makes whole line of contact all can form oil film;
4. profile of tooth is bilateral asymmetric, and the negative and positive root diameter is easy to adjust, and moment is distributed rationally between rotor, vibrates little;
5. the increase of female rotor diameter reduces the face area of male rotor profile of tooth, thereby the suffered axial force of male rotor is reduced, and its steady reliability that turns round is improved, and be improved the working life of bearing;
6. the gear ratio of negative and positive rotor is 7: 5, and rotating ratio is 1.4 times, and the negative and positive root diameter is more or less the same, and rotor rigidity is approaching, and the bearing capacity height can be used for the bigger operating mode of pressure reduction and pressure ratio, can realize that female rotor 1 drives male rotor 2, reduces the exploitation series of compressor.
We know, when a kind of screw compressor of specification rotor became the R134a refrigeration agent when the R22 refrigerant replacing, its refrigerating capacity and power were reduced to about 0.7, that is to say, want refrigerating capacity constant, common technology is the screw compressor with a big specification rotor.And adopt technology of the present utility model, the gear ratio of negative and positive rotor is 7: 5, and rotating ratio is 1.4 times, need not increase a specification rotor, just realize that with former specification rotor refrigerating capacity is constant, and because of the raising of air displacement, volumetric efficiency will improve, and compressor performance also just improves; For this specification rotor screw compressor, because of the identical foundry goods of rotor specification with regard to compressible machine general, the cutter of then processing profile of tooth because of rotor tooth form is general is general, thereby can reduce the exploitation of type and the input of cutter, can save development cost greatly, accelerate development progress, make screw compressor that wider application be arranged.
Description of drawings
Accompanying drawing is the structural representation that the utility model female rotor diameter equals the screw type compressor rotor of nominal diameter.
Among the figure: 1. male rotor, 2. female rotor
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated.
Embodiment: the female rotor diameter equals the screw type compressor rotor of nominal diameter, it comprises male rotor 1 and female rotor 2, the profile of tooth of male rotor 1 and female rotor 2 is bilateral asymmetric, the composition curve of its profile of tooth is circular arc and ellipse and envelope thereof, the gear ratio of negative and positive rotor is 7: 5, when the rotor nominal diameter is D0, diameter D1=D0+ (0.04～0.05) D0 of male rotor 1, the diameter D2=D0 of female rotor 2, the negative and positive centre of rotor is apart from A=(0.82～0.83) D0, the male rotor 1 of nominal diameter D0=200mm and female rotor 2 are that true origin and gapless molded lines of rotor coordinate are as follows with its central point, and the molded lines of rotor coordinate of other nominal diameter series is the D0/200 multiple of described nominal diameter D0=200mm molded lines of rotor coordinate:
The male rotor female rotor
Sequence number X1 Y1 X2 Y2
1 41.88761598 -49.70339654 81.28290186 58.2502349
2 42.26656293 -49.389638 81.58661828 57.81362222
3 42.65099305 -49.08245302 81.87800175 57.36861971
4 43.0408674 -48.78186036 82.15685257 56.91553235
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121 104.5 0 60.5 0
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221 61.89850998 22.4685351 96.11431905 -24.5779334
222 61.7873032 22.54104425 96.15937838 -24.70518623
223 61.67832644 22.61701357 96.20039528 -24.83379898
224 61.5716961 22.69637203 96.23732882 -24.96364326
225 61.46752537 22.77904468 96.27014213 -25.09458948
226 61.36592424 22.86495283 96.29880244 -25.22650693
227 61.26699942 22.95401417 96.32328116 -25.35926391
228 61.17085435 23.04614287 96.34355385 -25.49272793
229 61.07758916 23.14124976 96.35960027 -25.62676575
230 60.98730061 23.2392424 96.37140441 -25.76124358
231 60.90008204 23.34002523 96.37895448 -25.89602719
232 60.81602332 23.44349969 96.38224295 -26.03098204
233 60.73521079 23.54956433 96.38126654 -26.16597342
234 60.65772721 23.65811492 96.37602621 -26.30086658
235 60.5836517 23.7690446 96.3665272 -26.43552687
236 60.51305966 23.88224398 96.352779 -26.56981987
237 60.44602275 23.99760125 96.33479532 -26.70361155
238 60.38260878 24.11500234 96.31259411 -26.83676834
239 60.32288172 24.23433099 96.28619754 -26.96915734
240 60.26690157 24.35546892 96.25563196 -27.10064639
241 60.21472435 24.47829593 96.22092788 -27.23110425

Claims (2)

1. the female rotor diameter equals the screw type compressor rotor of nominal diameter, it comprises male rotor (1) and female rotor (2), the profile of tooth that it is characterized in that male rotor (1) and female rotor (2) is bilateral asymmetric, the composition curve of its profile of tooth is circular arc and ellipse and envelope thereof, the gear ratio of negative and positive rotor is 7: 5, when the rotor nominal diameter is D0, diameter D1=D0+ (0.04～0.05) D0 of male rotor (1), the diameter D2=D0 of female rotor (2), the negative and positive centre of rotor is apart from A=(0.82～0.83) D0.
2. female rotor diameter according to claim 1 equals the screw type compressor rotor of nominal diameter, it is characterized in that described male rotor (1) and female rotor (2) are when nominal diameter D0=200mm, with its central point is that true origin and gapless molded lines of rotor coordinate are as follows, and the molded lines of rotor coordinate of other nominal diameter series is the D0/200 multiple of described nominal diameter D0=200mm molded lines of rotor coordinate:
The male rotor female rotor
Sequence number X1 Y1 X2 Y2
1 41.88761598 -49.70339654 81.28290186 58.2502349
2 42.26656293 -49.389638 81.58661828 57.81362222
3 42.65099305 -49.08245302 81.87800175 57.36861971
4 43.0408674 -48.78186036 82.15685257 56.91553235
5 43.43614478 -48.48787152 82.42297964 56.45467067
6 43.83678296 -48.20048989 82.67620055 55.98635051
7 44.24274007 -47.91970994 82.91634177 55.51089285
8 44.65397601 -47.6455165 83.14323872 55.02862353
9 45.07045398 -47.37788403 83.35673589 54.53987308
10 45.49214211 -47.11677589 83.55668696 54.04497646
11 45.9190152 -46.86214366 83.7429549 53.54427286
12 46.35105661 -46.61392647 83.91541204 53.03810542
13 46.78826031 -46.37205029 84.0739402 52.52682106
14 47.23063308 -46.13642727 84.21843072 52.01077017
15 47.67819692 -45.90695504 84.34878458 51.49030644
16 48.13099165 -45.68351593 84.46491244 50.96578656
17 48.58907778 -45.46597629 84.56673471 50.43757002
18 49.05253961 -45.25418557 84.65418161 49.90601883
19 49.52148869 -45.04797552 84.72719321 49.37149728
20 49.99606756 -44.84715916 84.78571947 48.83437171
21 50.47645388 -44.65152971 84.82972027 48.29501024
22 50.962865 -44.46085935 84.85916547 47.75378252
23 51.45556297 -44.27489784 84.87403488 47.21105949
24 51.95486008 -44.09337087 84.87431831 46.66721309
25 52.46112495 -43.91597819 84.86001556 46.12261605
26 52.97478927 -43.7423914 84.83113644 45.57764162
27 53.49635525 -43.57225136 84.78770075 45.03266328
28 54.02640374 -43.40516507 84.72973824 44.48805455
29 54.56560326 -43.24070206 84.65728865 43.94418866
30 55.11471988 -43.07838997 84.57040163 43.40143836
31 55.67462799 -42.91770936 84.46913672 42.86017562
32 56.24632211 -42.75808746 84.35356333 42.32077139
33 56.83092971 -42.59889071 84.22376066 41.78359537
34 57.42972502 -42.43941582 84.07981768 41.24901569
35 58.0441439 -42.27887913 83.92183304 40.71739873
36 58.67579969 -42.11640381 83.74991501 40.18910884
37 59.32649982 -41.95100473 83.56418142 39.66450809
38 59.99826316 -41.78157038 83.36475956 39.143956
39 60.69333776 -41.6068415 83.15178609 38.62780933
40 61.41421859 -41.42538582 82.92540699 38.11642184
41 62.16366471 -41.2355684 82.68577741 37.61014399
42 62.94471533 -41.03551691 82.43306157 37.10932276
43 63.76070368 -40.82308128 82.16743267 36.6143014
44 64.61526777 -40.59578717 81.88907276 36.12541916
45 65.5123565 -40.35078259 81.59817261 35.64301111
46 66.45622959 -40.08477734 81.2949316 35.16740785
47 67.45144944 -39.79397502 80.97955754 34.69893535
48 68.50286262 -39.47399746 80.65226659 34.23791467
49 69.61556866 -39.11980204 80.31328305 33.78466177
50 70.79487347 -38.72559253 79.96283924 33.33948729
51 72.04622457 -38.28472479 79.60117533 32.90269633
52 73.37512552 -37.78960923 79.22853921 32.47458824
53 74.78702684 -37.23161269 78.84518624 32.05545643
54 76.28719123 -36.600963 78.45137917 31.64558815
55 77.88053127 -35.88666066 78.04738788 31.24526431
56 79.57141885 -35.07640224 77.63348926 30.85475926
57 81.3634661 -34.15652136 77.20996696 30.47434063
58 83.25927923 -33.11195312 76.77711126 30.10426916
59 85.26018764 -31.92622843 76.3352188 29.74479846
60 87.36595235 -30.58150448 75.88459245 29.3961749
61 89.57445898 -29.05863741 75.42554102 29.05863741
62 90.03144224 -28.72564562 74.96855776 28.72564562
63 90.48310179 -28.38546788 74.51689821 28.38546788
64 90.92932463 -28.0381893 74.07067537 28.0381893
65 91.36999914 -27.68389674 73.63000086 27.68389674
66 91.80501508 -27.32267885 73.19498492 27.32267885
67 92.23426364 -26.95462597 72.76573636 26.95462597
68 92.65763742 -26.57983019 72.34236258 26.57983019
69 93.07503052 -26.19838526 71.92496948 26.19838526
70 93.48633853 -25.81038659 71.51366147 25.81038659
71 93.89145855 -25.41593126 71.10854145 25.41593126
72 94.29028924 -25.01511794 70.70971076 25.01511794
73 94.68273083 -24.60804689 70.31726917 24.60804689
74 95.06868515 -24.19481995 69.93131485 24.19481995
75 95.44805564 -23.77554048 69.55194436 23.77554048
76 95.8207474 -23.35031338 69.1792526 23.35031338
77 96.18666721 -22.91924502 68.81333279 22.91924502
78 96.54572353 -22.48244323 68.45427647 22.48244323
79 96.89782653 -22.04001728 68.10217347 22.04001728
80 97.24288813 -21.59207786 67.75711187 21.59207786
81 97.58082201 -21.138737 67.41917799 21.138737
82 97.91154364 -20.68010813 67.08845636 20.68010813
83 98.23497029 -20.21630597 66.76502971 20.21630597
84 98.55102104 -19.74744654 66.44897896 19.74744654
85 98.85961683 -19.27364714 66.14038317 19.27364714
86 99.16068047 -18.79502628 65.83931953 18.79502628
87 99.45413665 -18.31170371 65.54586335 18.31170371
88 99.73991194 -17.82380032 65.26008806 17.82380032
89 100.0179349 -17.33143816 64.98206513 17.33143816
90 100.2881359 -16.83474041 64.71186411 16.83474041
91 100.5504474 -16.33383133 64.44955261 16.33383133
92 100.8048038 -15.8288362 64.19519623 15.8288362
93 101.0511414 -15.31988138 63.94885862 15.31988138
94 101.2893986 -14.80709416 63.71060138 14.80709416
95 101.5195159 -14.29060284 63.48048413 14.29060284
96 101.7414356 -13.7705366 63.25856442 13.7705366
97 101.9551022 -13.24702557 63.04489778 13.24702557
98 102.1604624 -12.72020069 62.83953765 12.72020069
99 102.3574646 -12.19019375 62.64253541 12.19019375
100 102.5460597 -11.65713734 62.45394033 11.65713734
101 102.7262004 -11.1211648 62.2737996 11.1211648
102 102.8978417 -10.58241022 62.10215828 10.58241022
103 103.0609407 -10.04100837 61.93905931 10.04100837
104 103.2154565 -9.497094683 61.78454349 9.497094683
105 103.3613505 -8.950805223 61.63864946 8.950805223
106 103.4985863 -8.40227665 61.50141374 8.40227665
107 103.6271294 -7.851646183 61.37287064 7.851646183
108 103.7469477 -7.299051565 61.25305233 7.299051565
109 103.8580112 -6.744631033 61.14198877 6.744631033
110 103.9602922 -6.18852328 61.03970776 6.18852328
111 104.0537651 -5.630867419 60.94623487 5.630867419
112 104.1384065 -5.071802953 60.8615935 5.071802953
113 104.2141952 -4.511469737 60.78580481 4.511469737
114 104.2811122 -3.950007941 60.71888776 3.950007941
115 104.3391409 -3.38755802 60.66085909 3.38755802
116 104.3882667 -2.824260676 60.61173332 2.824260676
117 104.4284773 -2.26025682 60.57152275 2.26025682
118 104.4597626 -1.695687544 60.54023742 1.695687544
119 104.4821148 -1.130694078 60.51788516 1.130694078
120 104.4955284 -0.565417761 60.50447157 0.565417761
121 104.5 0 60.5 0
122 104.4998699 0.022811721 60.50384417 -0.365984309
123 104.4994796 0.045620474 60.51538302 -0.732035784
124 104.4988292 0.068423292 60.53463568 -1.098221587
125 104.4979188 0.091217208 60.5616341 -1.464608877
126 104.4967484 0.113999257 60.59642323 -1.831264804
127 104.4953183 0.136766476 60.63906119 -2.198256501
128 104.4936285 0.159515901 60.68961961 -2.565651076
129 104.4916794 0.182244573 60.74818389 -2.933515593
130 104.4894712 0.204949536 60.81485367 -3.301917056
131 104.4870042 0.227627835 60.88974328 -3.670922376
132 104.4842786 0.25027652 60.97298227 -4.04059834
133 104.4812949 0.272892645 61.06471613 -4.411011562
134 104.4780535 0.295473267 61.16510691 -4.782228427
135 104.4745547 0.318015449 61.27433413 -5.154315021
136 104.470799 0.340516257 61.3925957 -5.527337042
137 104.4667869 0.362972765 61.52010891 -5.901359698
138 104.462519 0.385382052 61.65711166 -6.276447578
139 104.4579957 0.4077412 61.80386376 -6.652664499
140 104.4532177 0.430047303 61.96064839 -7.030073331
141 104.4481856 0.452297457 62.12777372 -7.408735775
142 104.4429 0.474488768 62.3055748 -7.788712112
143 104.4373617 0.496618349 62.49441559 -8.1700609
144 104.4315713 0.518683322 62.69469121 -8.552838621
145 104.4255296 0.540680814 62.90683062 -8.937099254
146 104.4192374 0.562607966 63.1312994 -9.322893789
147 104.4126955 0.584461923 63.36860309 -9.710269634
148 104.4059048 0.606239843 63.61929077 -10.09926993
149 104.3988662 0.627938892 63.88395925 -10.48993275
150 104.3915805 0.649556248 64.16325772 -10.88229011
151 104.3840487 0.671089098 64.45789302 -11.27636686
152 104.3762718 0.69253464 64.76863569 -11.67217934
153 104.3682508 0.713890086 65.09632681 -12.06973375
154 104.3599867 0.735152656 65.44188587 -12.46902428
155 104.3514807 0.756319584 65.80631981 -12.87003084
156 104.3427338 0.777388116 66.19073337 -13.27271634
157 104.3337471 0.798355512 66.59634116 -13.67702341
158 104.3245219 0.819219043 67.02448163 -14.08287052
159 104.3150593 0.839975996 67.47663347 -14.49014717
160 104.3053606 0.86062367 67.95443472 -14.89870815
161 104.295427 0.881159378 68.45970549 -15.30836651
162 104.2852598 0.90158045 68.99447486 -15.71888481
163 104.2748604 0.921884227 69.56101306 -16.1299645
164 104.2642301 0.94206807 70.1618702 -16.54123256
165 104.2533702 0.962129351 70.7999233 -16.95222481
166 104.2422822 0.982065462 71.47843377 -17.36236489
167 104.2309676 1.001873808 72.20111843 -17.77093736
168 104.2194278 1.021551812 72.97223814 -18.17705327
169 104.2076643 1.041096914 73.7967095 -18.57960516
170 104.1956786 1.060506572 74.68024763 -18.97720807
171 104.1834723 1.079778261 75.62955109 -19.36812057
172 104.171047 1.098909472 76.65254525 -19.75013789
173 104.1584043 1.117897718 77.75870834 -20.12044444
174 104.1455458 1.136740527 78.95951726 -20.47540608
175 104.1324733 1.155435449 80.26907194 -20.81027092
176 104.1191883 1.173980051 81.70499402 -21.11872588
177 104.1056927 1.192371921 83.28976382 -21.39221801
178 104.0919883 1.210608666 85.05278957 -21.61887377
179 104.0780767 1.228687914 87.03376951 -21.78169261
180 104.0639598 1.246607311 89.28850102 -21.85533601
181 104.0496394 1.264364528 91.89975487 -21.79994391
182 98.4174889 7.415429364 92.03467478 -21.79544448
183 92.77319631 2.30635433 92.16966948 -21.79520945
184 87.33163894 16.02635098 92.30460423 -21.79923903
185 82.28339212 18.69779644 92.43934435 -21.80752922
186 77.78871369 20.47115951 92.57375532 -21.82007172
187 73.97135594 21.51859158 92.707703 -21.83685403
188 70.91126785 22.02556432 92.84105366 -21.85785939
189 68.63435946 22.17905527 92.97367421 -21.88306684
190 67.09757529 22.14956939 93.10543226 -21.9124512
191 66.175214 22.06591031 93.2361963 -21.94598316
192 65.6745221 21.99440321 93.36583579 -21.98362924
193 65.4029584 21.94733584 93.49422133 -22.02535186
194 65.23195948 21.91582222 93.62122478 -22.07110938
195 65.09886692 21.89174004 93.74671935 -22.12085612
196 64.97822335 21.87141525 93.87057978 -22.17454242
197 64.86048015 21.85370907 93.99268243 -22.2321147
198 64.74222769 21.83848437 94.11290543 -22.29351549
199 64.6223781 21.82592412 94.23112876 -22.35868349
200 64.5007239 21.81627898 94.34723442 -22.42755366
201 64.37738712 21.80978422 94.46110652 -22.50005725
202 64.25260448 21.80663769 94.57263138 -22.5761219
203 64.12664293 21.80699844 94.68169769 -22.65567167
204 63.99976721 21.8109914 94.78819657 -22.73862716
205 63.8722285 21.818713 94.89202173 -22.82490556
206 63.74426175 21.83023632 94.99306951 -22.91442075
207 63.61608619 21.8456152 95.09123907 -23.00708338
208 63.48790706 21.86488756 95.18643241 -23.10280096
209 63.35991752 21.88807789 95.2785545 -23.20147793
210 63.23230042 21.91519924 95.36751339 -23.30301581
211 63.10522985 21.94625471 95.45322029 -23.40731323
212 62.97887234 21.98123863 95.53558964 -23.5142661
213 62.85338794 22.02013752 95.61453922 -23.62376765
214 62.72893102 22.06293079 95.68999023 -23.73570857
215 62.60565087 22.10959133 95.76186735 -23.84997713
216 62.48369222 22.16008601 95.83009884 -23.96645928
217 62.36319565 22.21437608 95.89461658 -24.08503873
218 62.24429783 22.27241747 95.95535618 -24.20559712
219 62.12713182 22.3341611 96.01225701 -24.32801411
220 62.01182715 22.39955312 96.06526227 -24.45216752
221 61.89850998 22.4685351 96.11431905 -24.5779334
222 61.7873032 22.54104425 96.15937838 -24.70518623
223 61.67832644 22.61701357 96.20039528 -24.83379898
224 61.5716961 22.69637203 96.23732882 -24.96364326
225 61.46752537 22.77904468 96.27014213 -25.09458948
226 61.36592424 22.86495283 96.29880244 -25.22650693
227 61.26699942 22.95401417 96.32328116 -25.35926391
228 61.17085435 23.04614287 96.34355385 -25.49272793
229 61.07758916 23.14124976 96.35960027 -25.62676575
230 60.98730061 23.2392424 96.37140441 -25.76124358
231 60.90008204 23.34002523 96.37895448 -25.89602719
232 60.81602332 23.44349969 96.38224295 -26.03098204
233 60.73521079 23.54956433 96.38126654 -26.16597342
234 60.65772721 23.65811492 96.37602621 -26.30086658
235 60.5836517 23.7690446 96.3665272 -26.43552687
236 60.51305966 23.88224398 96.352779 -26.56981987
237 60.44602275 23.99760125 96.33479532 -26.70361155
238 60.38260878 24.11500234 96.31259411 -26.83676834
239 60.32288172 24.23433099 96.28619754 -26.96915734
240 60.26690157 24.35546892 96.25563196 -27.10064639
241 60.21472435 24.47829593 96.22092788 -27.23110425
CN2010202224324U 2010-06-11 2010-06-11 Screw compressor rotor with diameter of female rotor equal to nominal diameter Expired - Fee Related CN201687712U (en)

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CN2010202224324U CN201687712U (en) 2010-06-11 2010-06-11 Screw compressor rotor with diameter of female rotor equal to nominal diameter

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102974990A (en) * 2012-12-18 2013-03-20 中国石油集团济柴动力总厂成都压缩机厂 Processing method for rotor profile structure of dual-screw compressor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102974990A (en) * 2012-12-18 2013-03-20 中国石油集团济柴动力总厂成都压缩机厂 Processing method for rotor profile structure of dual-screw compressor
CN102974990B (en) * 2012-12-18 2015-04-15 中国石油集团济柴动力总厂成都压缩机厂 Processing method for rotor profile structure of dual-screw compressor

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